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Publisher: Elsevier   (Total: 3181 journals)

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Showing 1 - 200 of 3181 Journals sorted alphabetically
Academic Pediatrics     Hybrid Journal   (Followers: 39, SJR: 1.655, CiteScore: 2)
Academic Radiology     Hybrid Journal   (Followers: 26, SJR: 1.015, CiteScore: 2)
Accident Analysis & Prevention     Partially Free   (Followers: 105, SJR: 1.462, CiteScore: 3)
Accounting Forum     Hybrid Journal   (Followers: 28, SJR: 0.932, CiteScore: 2)
Accounting, Organizations and Society     Hybrid Journal   (Followers: 42, SJR: 1.771, CiteScore: 3)
Achievements in the Life Sciences     Open Access   (Followers: 7)
Acta Anaesthesiologica Taiwanica     Open Access   (Followers: 6)
Acta Astronautica     Hybrid Journal   (Followers: 443, SJR: 0.758, CiteScore: 2)
Acta Automatica Sinica     Full-text available via subscription   (Followers: 2)
Acta Biomaterialia     Hybrid Journal   (Followers: 29, SJR: 1.967, CiteScore: 7)
Acta Colombiana de Cuidado Intensivo     Full-text available via subscription   (Followers: 3)
Acta de Investigación Psicológica     Open Access   (Followers: 3)
Acta Ecologica Sinica     Open Access   (Followers: 11, SJR: 0.18, CiteScore: 1)
Acta Histochemica     Hybrid Journal   (Followers: 5, SJR: 0.661, CiteScore: 2)
Acta Materialia     Hybrid Journal   (Followers: 319, SJR: 3.263, CiteScore: 6)
Acta Mathematica Scientia     Full-text available via subscription   (Followers: 5, SJR: 0.504, CiteScore: 1)
Acta Mechanica Solida Sinica     Full-text available via subscription   (Followers: 9, SJR: 0.542, CiteScore: 1)
Acta Oecologica     Hybrid Journal   (Followers: 12, SJR: 0.834, CiteScore: 2)
Acta Otorrinolaringologica (English Edition)     Full-text available via subscription  
Acta Otorrinolaringológica Española     Full-text available via subscription   (Followers: 2, SJR: 0.307, CiteScore: 0)
Acta Pharmaceutica Sinica B     Open Access   (Followers: 2, SJR: 1.793, CiteScore: 6)
Acta Poética     Open Access   (Followers: 4, SJR: 0.101, CiteScore: 0)
Acta Psychologica     Hybrid Journal   (Followers: 26, SJR: 1.331, CiteScore: 2)
Acta Sociológica     Open Access   (Followers: 1)
Acta Tropica     Hybrid Journal   (Followers: 6, SJR: 1.052, CiteScore: 2)
Acta Urológica Portuguesa     Open Access  
Actas Dermo-Sifiliograficas     Full-text available via subscription   (Followers: 3, SJR: 0.374, CiteScore: 1)
Actas Dermo-Sifiliográficas (English Edition)     Full-text available via subscription   (Followers: 2)
Actas Urológicas Españolas     Full-text available via subscription   (Followers: 3, SJR: 0.344, CiteScore: 1)
Actas Urológicas Españolas (English Edition)     Full-text available via subscription   (Followers: 1)
Actualites Pharmaceutiques     Full-text available via subscription   (Followers: 7, SJR: 0.19, CiteScore: 0)
Actualites Pharmaceutiques Hospitalieres     Full-text available via subscription   (Followers: 3)
Acupuncture and Related Therapies     Hybrid Journal   (Followers: 8)
Acute Pain     Full-text available via subscription   (Followers: 15, SJR: 2.671, CiteScore: 5)
Ad Hoc Networks     Hybrid Journal   (Followers: 11, SJR: 0.53, CiteScore: 4)
Addictive Behaviors     Hybrid Journal   (Followers: 18, SJR: 1.29, CiteScore: 3)
Addictive Behaviors Reports     Open Access   (Followers: 9, SJR: 0.755, CiteScore: 2)
Additive Manufacturing     Hybrid Journal   (Followers: 11, SJR: 2.611, CiteScore: 8)
Additives for Polymers     Full-text available via subscription   (Followers: 23)
Advanced Drug Delivery Reviews     Hybrid Journal   (Followers: 187, SJR: 4.09, CiteScore: 13)
Advanced Engineering Informatics     Hybrid Journal   (Followers: 12, SJR: 1.167, CiteScore: 4)
Advanced Powder Technology     Hybrid Journal   (Followers: 17, SJR: 0.694, CiteScore: 3)
Advances in Accounting     Hybrid Journal   (Followers: 9, SJR: 0.277, CiteScore: 1)
Advances in Agronomy     Full-text available via subscription   (Followers: 17, SJR: 2.384, CiteScore: 5)
Advances in Anesthesia     Full-text available via subscription   (Followers: 30, SJR: 0.126, CiteScore: 0)
Advances in Antiviral Drug Design     Full-text available via subscription   (Followers: 2)
Advances in Applied Mathematics     Full-text available via subscription   (Followers: 12, SJR: 0.992, CiteScore: 1)
Advances in Applied Mechanics     Full-text available via subscription   (Followers: 12, SJR: 1.551, CiteScore: 4)
Advances in Applied Microbiology     Full-text available via subscription   (Followers: 24, SJR: 2.089, CiteScore: 5)
Advances In Atomic, Molecular, and Optical Physics     Full-text available via subscription   (Followers: 15, SJR: 0.572, CiteScore: 2)
Advances in Biological Regulation     Hybrid Journal   (Followers: 4, SJR: 2.61, CiteScore: 7)
Advances in Botanical Research     Full-text available via subscription   (Followers: 2, SJR: 0.686, CiteScore: 2)
Advances in Cancer Research     Full-text available via subscription   (Followers: 34, SJR: 3.043, CiteScore: 6)
Advances in Carbohydrate Chemistry and Biochemistry     Full-text available via subscription   (Followers: 9, SJR: 1.453, CiteScore: 2)
Advances in Catalysis     Full-text available via subscription   (Followers: 5, SJR: 1.992, CiteScore: 5)
Advances in Cell Aging and Gerontology     Full-text available via subscription   (Followers: 5)
Advances in Cellular and Molecular Biology of Membranes and Organelles     Full-text available via subscription   (Followers: 14)
Advances in Chemical Engineering     Full-text available via subscription   (Followers: 29, SJR: 0.156, CiteScore: 1)
Advances in Child Development and Behavior     Full-text available via subscription   (Followers: 11, SJR: 0.713, CiteScore: 1)
Advances in Chronic Kidney Disease     Full-text available via subscription   (Followers: 10, SJR: 1.316, CiteScore: 2)
Advances in Clinical Chemistry     Full-text available via subscription   (Followers: 26, SJR: 1.562, CiteScore: 3)
Advances in Colloid and Interface Science     Full-text available via subscription   (Followers: 20, SJR: 1.977, CiteScore: 8)
Advances in Computers     Full-text available via subscription   (Followers: 14, SJR: 0.205, CiteScore: 1)
Advances in Dermatology     Full-text available via subscription   (Followers: 15)
Advances in Developmental Biology     Full-text available via subscription   (Followers: 13)
Advances in Digestive Medicine     Open Access   (Followers: 12)
Advances in DNA Sequence-Specific Agents     Full-text available via subscription   (Followers: 7)
Advances in Drug Research     Full-text available via subscription   (Followers: 26)
Advances in Ecological Research     Full-text available via subscription   (Followers: 44, SJR: 2.524, CiteScore: 4)
Advances in Engineering Software     Hybrid Journal   (Followers: 29, SJR: 1.159, CiteScore: 4)
Advances in Experimental Biology     Full-text available via subscription   (Followers: 8)
Advances in Experimental Social Psychology     Full-text available via subscription   (Followers: 52, SJR: 5.39, CiteScore: 8)
Advances in Exploration Geophysics     Full-text available via subscription   (Followers: 1)
Advances in Fluorine Science     Full-text available via subscription   (Followers: 9)
Advances in Food and Nutrition Research     Full-text available via subscription   (Followers: 67, SJR: 0.591, CiteScore: 2)
Advances in Fuel Cells     Full-text available via subscription   (Followers: 17)
Advances in Genetics     Full-text available via subscription   (Followers: 21, SJR: 1.354, CiteScore: 4)
Advances in Genome Biology     Full-text available via subscription   (Followers: 11, SJR: 12.74, CiteScore: 13)
Advances in Geophysics     Full-text available via subscription   (Followers: 7, SJR: 1.193, CiteScore: 3)
Advances in Heat Transfer     Full-text available via subscription   (Followers: 26, SJR: 0.368, CiteScore: 1)
Advances in Heterocyclic Chemistry     Full-text available via subscription   (Followers: 11, SJR: 0.749, CiteScore: 3)
Advances in Human Factors/Ergonomics     Full-text available via subscription   (Followers: 26)
Advances in Imaging and Electron Physics     Full-text available via subscription   (Followers: 3, SJR: 0.193, CiteScore: 0)
Advances in Immunology     Full-text available via subscription   (Followers: 37, SJR: 4.433, CiteScore: 6)
Advances in Inorganic Chemistry     Full-text available via subscription   (Followers: 10, SJR: 1.163, CiteScore: 2)
Advances in Insect Physiology     Full-text available via subscription   (Followers: 2, SJR: 1.938, CiteScore: 3)
Advances in Integrative Medicine     Hybrid Journal   (Followers: 6, SJR: 0.176, CiteScore: 0)
Advances in Intl. Accounting     Full-text available via subscription   (Followers: 3)
Advances in Life Course Research     Hybrid Journal   (Followers: 9, SJR: 0.682, CiteScore: 2)
Advances in Lipobiology     Full-text available via subscription   (Followers: 1)
Advances in Magnetic and Optical Resonance     Full-text available via subscription   (Followers: 8)
Advances in Marine Biology     Full-text available via subscription   (Followers: 21, SJR: 0.88, CiteScore: 2)
Advances in Mathematics     Full-text available via subscription   (Followers: 15, SJR: 3.027, CiteScore: 2)
Advances in Medical Sciences     Hybrid Journal   (Followers: 8, SJR: 0.694, CiteScore: 2)
Advances in Medicinal Chemistry     Full-text available via subscription   (Followers: 6)
Advances in Microbial Physiology     Full-text available via subscription   (Followers: 5, SJR: 1.158, CiteScore: 3)
Advances in Molecular and Cell Biology     Full-text available via subscription   (Followers: 25)
Advances in Molecular and Cellular Endocrinology     Full-text available via subscription   (Followers: 8)
Advances in Molecular Toxicology     Full-text available via subscription   (Followers: 7, SJR: 0.182, CiteScore: 0)
Advances in Nanoporous Materials     Full-text available via subscription   (Followers: 5)
Advances in Oncobiology     Full-text available via subscription   (Followers: 2)
Advances in Organ Biology     Full-text available via subscription   (Followers: 2)
Advances in Organometallic Chemistry     Full-text available via subscription   (Followers: 18, SJR: 1.875, CiteScore: 4)
Advances in Parallel Computing     Full-text available via subscription   (Followers: 7, SJR: 0.174, CiteScore: 0)
Advances in Parasitology     Full-text available via subscription   (Followers: 5, SJR: 1.579, CiteScore: 4)
Advances in Pediatrics     Full-text available via subscription   (Followers: 27, SJR: 0.461, CiteScore: 1)
Advances in Pharmaceutical Sciences     Full-text available via subscription   (Followers: 19)
Advances in Pharmacology     Full-text available via subscription   (Followers: 17, SJR: 1.536, CiteScore: 3)
Advances in Physical Organic Chemistry     Full-text available via subscription   (Followers: 9, SJR: 0.574, CiteScore: 1)
Advances in Phytomedicine     Full-text available via subscription  
Advances in Planar Lipid Bilayers and Liposomes     Full-text available via subscription   (Followers: 3, SJR: 0.109, CiteScore: 1)
Advances in Plant Biochemistry and Molecular Biology     Full-text available via subscription   (Followers: 10)
Advances in Plant Pathology     Full-text available via subscription   (Followers: 6)
Advances in Porous Media     Full-text available via subscription   (Followers: 5)
Advances in Protein Chemistry     Full-text available via subscription   (Followers: 19)
Advances in Protein Chemistry and Structural Biology     Full-text available via subscription   (Followers: 20, SJR: 0.791, CiteScore: 2)
Advances in Psychology     Full-text available via subscription   (Followers: 68)
Advances in Quantum Chemistry     Full-text available via subscription   (Followers: 6, SJR: 0.371, CiteScore: 1)
Advances in Radiation Oncology     Open Access   (Followers: 2, SJR: 0.263, CiteScore: 1)
Advances in Small Animal Medicine and Surgery     Hybrid Journal   (Followers: 3, SJR: 0.101, CiteScore: 0)
Advances in Space Biology and Medicine     Full-text available via subscription   (Followers: 6)
Advances in Space Research     Full-text available via subscription   (Followers: 423, SJR: 0.569, CiteScore: 2)
Advances in Structural Biology     Full-text available via subscription   (Followers: 5)
Advances in Surgery     Full-text available via subscription   (Followers: 13, SJR: 0.555, CiteScore: 2)
Advances in the Study of Behavior     Full-text available via subscription   (Followers: 38, SJR: 2.208, CiteScore: 4)
Advances in Veterinary Medicine     Full-text available via subscription   (Followers: 20)
Advances in Veterinary Science and Comparative Medicine     Full-text available via subscription   (Followers: 15)
Advances in Virus Research     Full-text available via subscription   (Followers: 6, SJR: 2.262, CiteScore: 5)
Advances in Water Resources     Hybrid Journal   (Followers: 54, SJR: 1.551, CiteScore: 3)
Aeolian Research     Hybrid Journal   (Followers: 6, SJR: 1.117, CiteScore: 3)
Aerospace Science and Technology     Hybrid Journal   (Followers: 383, SJR: 0.796, CiteScore: 3)
AEU - Intl. J. of Electronics and Communications     Hybrid Journal   (Followers: 8, SJR: 0.42, CiteScore: 2)
African J. of Emergency Medicine     Open Access   (Followers: 6, SJR: 0.296, CiteScore: 0)
Ageing Research Reviews     Hybrid Journal   (Followers: 12, SJR: 3.671, CiteScore: 9)
Aggression and Violent Behavior     Hybrid Journal   (Followers: 482, SJR: 1.238, CiteScore: 3)
Agri Gene     Hybrid Journal   (Followers: 1, SJR: 0.13, CiteScore: 0)
Agricultural and Forest Meteorology     Hybrid Journal   (Followers: 18, SJR: 1.818, CiteScore: 5)
Agricultural Systems     Hybrid Journal   (Followers: 31, SJR: 1.156, CiteScore: 4)
Agricultural Water Management     Hybrid Journal   (Followers: 44, SJR: 1.272, CiteScore: 3)
Agriculture and Agricultural Science Procedia     Open Access   (Followers: 4)
Agriculture and Natural Resources     Open Access   (Followers: 3)
Agriculture, Ecosystems & Environment     Hybrid Journal   (Followers: 58, SJR: 1.747, CiteScore: 4)
Ain Shams Engineering J.     Open Access   (Followers: 5, SJR: 0.589, CiteScore: 3)
Air Medical J.     Hybrid Journal   (Followers: 8, SJR: 0.26, CiteScore: 0)
AKCE Intl. J. of Graphs and Combinatorics     Open Access   (SJR: 0.19, CiteScore: 0)
Alcohol     Hybrid Journal   (Followers: 12, SJR: 1.153, CiteScore: 3)
Alcoholism and Drug Addiction     Open Access   (Followers: 12)
Alergologia Polska : Polish J. of Allergology     Full-text available via subscription   (Followers: 1)
Alexandria Engineering J.     Open Access   (Followers: 2, SJR: 0.604, CiteScore: 3)
Alexandria J. of Medicine     Open Access   (Followers: 1, SJR: 0.191, CiteScore: 1)
Algal Research     Partially Free   (Followers: 11, SJR: 1.142, CiteScore: 4)
Alkaloids: Chemical and Biological Perspectives     Full-text available via subscription   (Followers: 2)
Allergologia et Immunopathologia     Full-text available via subscription   (Followers: 1, SJR: 0.504, CiteScore: 1)
Allergology Intl.     Open Access   (Followers: 5, SJR: 1.148, CiteScore: 2)
Alpha Omegan     Full-text available via subscription   (SJR: 3.521, CiteScore: 6)
ALTER - European J. of Disability Research / Revue Européenne de Recherche sur le Handicap     Full-text available via subscription   (Followers: 11, SJR: 0.201, CiteScore: 1)
Alzheimer's & Dementia     Hybrid Journal   (Followers: 54, SJR: 4.66, CiteScore: 10)
Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring     Open Access   (Followers: 6, SJR: 1.796, CiteScore: 4)
Alzheimer's & Dementia: Translational Research & Clinical Interventions     Open Access   (Followers: 6, SJR: 1.108, CiteScore: 3)
Ambulatory Pediatrics     Hybrid Journal   (Followers: 5)
American Heart J.     Hybrid Journal   (Followers: 58, SJR: 3.267, CiteScore: 4)
American J. of Cardiology     Hybrid Journal   (Followers: 66, SJR: 1.93, CiteScore: 3)
American J. of Emergency Medicine     Hybrid Journal   (Followers: 47, SJR: 0.604, CiteScore: 1)
American J. of Geriatric Pharmacotherapy     Full-text available via subscription   (Followers: 13)
American J. of Geriatric Psychiatry     Hybrid Journal   (Followers: 14, SJR: 1.524, CiteScore: 3)
American J. of Human Genetics     Hybrid Journal   (Followers: 37, SJR: 7.45, CiteScore: 8)
American J. of Infection Control     Hybrid Journal   (Followers: 29, SJR: 1.062, CiteScore: 2)
American J. of Kidney Diseases     Hybrid Journal   (Followers: 36, SJR: 2.973, CiteScore: 4)
American J. of Medicine     Hybrid Journal   (Followers: 50)
American J. of Medicine Supplements     Full-text available via subscription   (Followers: 3, SJR: 1.967, CiteScore: 2)
American J. of Obstetrics and Gynecology     Hybrid Journal   (Followers: 267, SJR: 2.7, CiteScore: 4)
American J. of Ophthalmology     Hybrid Journal   (Followers: 66, SJR: 3.184, CiteScore: 4)
American J. of Ophthalmology Case Reports     Open Access   (Followers: 5, SJR: 0.265, CiteScore: 0)
American J. of Orthodontics and Dentofacial Orthopedics     Full-text available via subscription   (Followers: 6, SJR: 1.289, CiteScore: 1)
American J. of Otolaryngology     Hybrid Journal   (Followers: 25, SJR: 0.59, CiteScore: 1)
American J. of Pathology     Hybrid Journal   (Followers: 32, SJR: 2.139, CiteScore: 4)
American J. of Preventive Medicine     Hybrid Journal   (Followers: 28, SJR: 2.164, CiteScore: 4)
American J. of Surgery     Hybrid Journal   (Followers: 39, SJR: 1.141, CiteScore: 2)
American J. of the Medical Sciences     Hybrid Journal   (Followers: 12, SJR: 0.767, CiteScore: 1)
Ampersand : An Intl. J. of General and Applied Linguistics     Open Access   (Followers: 7)
Anaerobe     Hybrid Journal   (Followers: 4, SJR: 1.144, CiteScore: 3)
Anaesthesia & Intensive Care Medicine     Full-text available via subscription   (Followers: 67, SJR: 0.138, CiteScore: 0)
Anaesthesia Critical Care & Pain Medicine     Full-text available via subscription   (Followers: 25, SJR: 0.411, CiteScore: 1)
Anales de Cirugia Vascular     Full-text available via subscription   (Followers: 1)
Anales de Pediatría     Full-text available via subscription   (Followers: 3, SJR: 0.277, CiteScore: 0)
Anales de Pediatría (English Edition)     Full-text available via subscription  
Anales de Pediatría Continuada     Full-text available via subscription  
Analytic Methods in Accident Research     Hybrid Journal   (Followers: 5, SJR: 4.849, CiteScore: 10)
Analytica Chimica Acta     Hybrid Journal   (Followers: 44, SJR: 1.512, CiteScore: 5)
Analytica Chimica Acta : X     Open Access  
Analytical Biochemistry     Hybrid Journal   (Followers: 210, SJR: 0.633, CiteScore: 2)
Analytical Chemistry Research     Open Access   (Followers: 13, SJR: 0.411, CiteScore: 2)
Analytical Spectroscopy Library     Full-text available via subscription   (Followers: 14)
Anesthésie & Réanimation     Full-text available via subscription   (Followers: 2)
Anesthesiology Clinics     Full-text available via subscription   (Followers: 25, SJR: 0.683, CiteScore: 2)
Angiología     Full-text available via subscription   (SJR: 0.121, CiteScore: 0)
Angiologia e Cirurgia Vascular     Open Access   (Followers: 1, SJR: 0.111, CiteScore: 0)
Animal Behaviour     Hybrid Journal   (Followers: 226, SJR: 1.58, CiteScore: 3)
Animal Feed Science and Technology     Hybrid Journal   (Followers: 7, SJR: 0.937, CiteScore: 2)
Animal Reproduction Science     Hybrid Journal   (Followers: 7, SJR: 0.704, CiteScore: 2)

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Similar Journals
Journal Cover
Analytical Biochemistry
Journal Prestige (SJR): 0.633
Citation Impact (citeScore): 2
Number of Followers: 210  
 
  Hybrid Journal Hybrid journal (It can contain Open Access articles)
ISSN (Print) 0003-2697 - ISSN (Online) 1096-0309
Published by Elsevier Homepage  [3181 journals]
  • Prediction of drug-target interaction based on protein features using
           undersampling and feature selection techniques with boosting
    • Abstract: Publication date: Available online 15 November 2019Source: Analytical BiochemistryAuthor(s): S.M. Hasan Mahmud, Wenyu Chen, Han Meng, Hosney Jahan, Yougsheng Liu, S.M. Mamun Hasan Accurate identification of drug-target interaction (DTI) is a crucial and challenging task in the drug discovery process, having enormous benefit to the patients and pharmaceutical company. The traditional wet-lab experiments of DTI is expensive, time-consuming, and labor-intensive. Therefore, many computational techniques have been established for this purpose; although a huge number of interactions are still undiscovered. Here, we present pdti-EssB, a new computational model for identification of DTI using protein sequence and drug molecular structure. More specifically, each drug molecule is transformed as the molecular substructure fingerprint. For a protein sequence, different descriptors are utilized to represent its evolutionary, sequence, and structural information. Besides, our proposed method uses data balancing techniques to handle the imbalance problem and applies a novel feature eliminator to extract the best optimal features for accurate prediction. In this paper, four classes of DTI benchmark datasets are used to construct a predictive model with XGBoost. Here, the auROC is utilized as an evaluation metric to compare the performance of pdti-EssB method with recent methods, applying five-fold cross-validation. Finally, the experimental results indicate that our proposed method is able to outperform other approaches in predicting DTI, and introduces new drug-target interaction samples based on prediction probability scores. pdti-EssB webserver is available online at http://pdtiessb-uestc.com/Graphical abstractImage 1
       
  • Cytological examination of cerebrospinal fluid: Sysmex UF-1000i versus
           optical microscopy
    • Abstract: Publication date: Available online 5 November 2019Source: Analytical BiochemistryAuthor(s): A. Maleb, O. Bouayadi, J. El Malki, S. Rifai, S. Lamrabat, E. Benaissa, Y. Ben Lahlou, M. Frikh, M. Elouennass We evaluated the body fluid module on Sysmex UF-1000i (UF-1000i-BF) for analysis of white blood cell (WBC) and red blood cell (RBC) in cerebrospinal fluid.We collected 93 cerebrospinal fluid samples and compared the results of the UF-1000i-BF mode with the Fast-Read 102 disposable counting cell.Results shows a good correlation between the UF-1000i and the microscopic examination. The concordance percentage is 99.06% for white blood cells and 85.18% for red blood cells.The UF-1000i-BF mode offers rapid and reliable total WBC and RBC counts for initial screening of cerebrospinal fluid, and can improve the workflow in a routine laboratory.
       
  • Carboxymethylcellulose enhances the production of single-stranded DNA
           aptamers generated by asymmetric PCR
    • Abstract: Publication date: Available online 5 November 2019Source: Analytical BiochemistryAuthor(s): Oleksij Redcenko, Lubica Draberova, Petr Draber Nucleic acid aptamers are single-stranded (ss)DNA or RNA oligonucleotides that can take various conformations and bind specifically and with high affinity to selected targets. While the introduction of SELEX (systematic evolution of ligands by exponential enrichment) revolutionized the production of the aptamers, this procedure is impeded by the formation of undesirable by-products reflecting hybridization among complementary oligonucleotides in the ssDNA libraries during asymmetric PCR. To reduce nonspecific amplification we tested cellulose-derived compounds and found that sodium carboxymethylcellulose (CMC) at a concentration 0.05%–0.2% efficiently suppressed production of undesirable large DNA amplicons during asymmetric PCR in the course of SELEX. Formation of the PCR by-products was reduced by CMCs of low and medium viscosity more than by CMCs of high viscosity, and all of them bound to DNA oligonucleotides as determined by electrophoresis in agarose gels. In contrast to CMC, methylcellulose did not reduce the formation of the PCR by-products and did not bind to DNA. DNA aptamers selected in the presence of CMC could be used directly in enzyme-linked immunosorbent-like assay. The combined data suggest that CMC binds weekly to DNA oligonucleotides through hydroxyl groups and in this way inhibits low-affinity DNA-DNA hybridization and enhances the production of specific amplicons in asymmetric PCR.Graphical abstractImage 1
       
  • SDBP-Pred: Prediction of single-stranded and double-stranded DNA-binding
           proteins by extending consensus sequence and K-segmentation strategies
           into PSSM
    • Abstract: Publication date: Available online 3 November 2019Source: Analytical BiochemistryAuthor(s): Farman Ali, Muhammad Arif, Zaheer Ullah Khan, Muhammad Kabir, Saeed Ahmed, Dong-Jun Yu Identification of DNA-binding proteins (DNA-BPs) is a hot issue in protein science due to its key role in various biological processes. These processes are highly concerned with DNA-binding protein types. DNA-BPs are classified into single-stranded DNA-binding proteins (SSBs) and double-stranded DNA-binding proteins (DSBs). SSBs mainly involved in DNA recombination, replication, and repair, while DSBs regulate transcription process, DNA cleavage, and chromosome packaging. In spite of the aforementioned significance, few methods have been proposed for discrimination of SSBs and DSBs. Therefore, more predictors with favorable performance are indispensable. In this work, we present an innovative predictor, called SDBP-Pred with a novel feature descriptor, named consensus sequence-based K-segmentation position-specific scoring matrix (CSKS-PSSM). We encoded the local discriminative features concealed in PSSM via K-segmentation strategy and the global potential features by applying the notion of the consensus sequence. The obtained feature vector then input to support vector machine (SVM) with linear, sigmoid and radial base function (RBF) kernels. Our model with SVM-RBF achieved the highest accuracies on three tests namely jackknife, 10-fold, and independent tests, respectively than the recent method. The obtained prediction results illustrate the superlative prediction performance of SDBP-Pred over existing studies in the literature so far.Graphical abstractA novel sequence-based predictor, called SDBP-Pred is designed for discrimination of single-stranded DNA-binding proteins (SSBs) and double-stranded DNA-binding proteins (DSBs). The features are extracted by descriptor, named consensus sequence-based K-segmentation position-specific scoring matrix (CSKS-PSSM) and the classification is performed with support vector machine.Image 1
       
  • Important methodological aspects that should be taken into account during
           the research of isolated mitochondria
    • Abstract: Publication date: Available online 1 November 2019Source: Analytical BiochemistryAuthor(s): Dairo A. Rendon Isolated mitochondria have been widely used for the study of energetic functioning of these important cellular organelles in a physiological or pathophysiological state. This is due, on the one part, to the fact that isolated mitochondria are relatively easy to isolate from a great variety of animal tissues, and on the other part to the fact that their energetic functioning is relatively easy to study experimentally. Nevertheless, they have a great disadvantage because of the fact that these biological structures can easily undergo structural-functional changes during their in vitro handling, causing many conclusions reported in the research of isolated mitochondria to be merely the fruit of experimental artifacts. The present review describes a series of important methodological aspects that should be taken into account in order to obtain reliable results in the study of the energetic functioning (and of other aspects) of isolated mitochondria.
       
  • A sensitive H2O2 biosensor based on carbon nanotubes/tetrathiafulvalene
           and its application in detecting NADH
    • Abstract: Publication date: Available online 1 November 2019Source: Analytical BiochemistryAuthor(s): Xingcan Huang, Jiru Zhang, Lili Zhang, Hang Su, Xiumei Liu, Jian Liu Reduced nicotinamide adenine dinucleotide (NADH) plays a pivotal role in the electron-transfer chain of biological system. Analysis of many biological markers is based on the detection of the enzymatically generated NADH. In this paper, a sensitive hydrogen peroxide (H2O2) biosensor, fabricated by carbon nanotubes (CNTs)/tetrathiafulvalene (TTF)/horseradish peroxidase (HRP), was applied for detecting the NADH in a buffer containing methylene blue (MB) at low operating potential of - 0.3 V (vs. Ag/AgCl). Since the NADH could be oxidized by MB to release H2O2, the electrochemical biosensor enables to detect the NADH in the MB buffer. And the low working potential made the biosensor avoid the interference from other electroactive substances. Linear response ranges from 10 μM to 790 μM, with a sensitivity of 4.76 μA mM−1 and a detection limit of 1.53 μM were obtained under the optimum conditions. The proposed sensor provided a promising approach for sensitively detecting the NADH.Graphical abstractImage 1
       
  • In vitro selection of anti-gliadin single-domain antibodies from a naïve
           library for cDNA-display mediated immuno-PCR
    • Abstract: Publication date: Available online 31 October 2019Source: Analytical BiochemistryAuthor(s): Chathuni Jayathlake, Shigefumi Kumachi, Hidenao Arai, Maiko Motohashi, Takuya Terai, Akikazu Murakami, Naoto Nemoto Gluten intolerance, or adverse intestinal reactions to gluten, is a fairly common problem among certain groups of people. Celiac disease is the most severe form of gluten intolerance, which can lead to permanent damage in the digestive system. Since lifelong avoidance of gluten is the only available treatment, development of reliable techniques to identify gluten contamination in food is important. Gliadin, a component of gluten, is known to play a major role in gluten toxicity. In this study, cDNA display method was used to select specific single-domain antibodies against toxic gliadin from an alpaca-derived naïve VHH library. The cDNA display method is a promising in vitro display technique, which uniquely converts an unstable mRNA-protein fusion molecule to a stable mRNA/cDNA-protein fusion molecule using a well-designed puromycin linker. Three candidate VHHs were selected and the affinities of the VHHs were observed by pulldown assay and indirect ELISA method. In addition, a novel cDNA display mediated immuno-PCR method (cD-IPCR) was successfully applied to detect gliadin in food. We believe this work demonstrates the potential application of the cDNA display method in selecting binders against toxic and heterogeneous targets such as gliadin with an immunization-free preparation manner.Graphical abstractImage 1
       
  • VHH characterization.Recombinant VHHs: Production, characterization and
           affinity
    • Abstract: Publication date: Available online 30 October 2019Source: Analytical BiochemistryAuthor(s): Eric Chabrol, Johann Stojko, Alexandre Nicolas, Thomas Botzanowski, Benjamin Fould, Mathias Antoine, Sarah Cianférani, Gilles Ferry, Jean A. Boutin Among the biological approaches to therapeutics, are the cells, such as CAR-T cells engineered or not, the antibodies armed or not, and the smaller protein scaffolds that can be modified to render them specific of other proteins, à la façon of antibodies. For several years, we explored ways to substitute antibodies by nanobodies (also known as VHHs), the smallest recognizing part of camelids’ heavy-chain antibodies: production of those small proteins in host microorganisms, minute analyses, characterization, and qualification of their affinity towards designed targets. Here, we present three standard VHHs described in the literature: anti-albumin, anti-EGF receptor and anti-HER2, a typical cancer cell surface -associated protein. Because they differ slightly in global structure, they are good models to assess our body of analytical methodologies. The VHHs were expressed in several bacteria strains in order to identify and overcome the bottlenecks to obtain homogeneous preparations of this protein. A large panel of biophysical tools, ranging from spectroscopy to mass spectrometry, was here combined to assess VHH structural features and the impact of the disulfide bond. The routes are now ready to move to more complex VHHs raised against specific targets in numerous areas including oncology.Graphical abstractImage 1
       
  • Rapid and sensitive detection of Salmonella with reduced graphene
           oxide-carbon nanotube based electrochemical aptasensor
    • Abstract: Publication date: Available online 23 October 2019Source: Analytical BiochemistryAuthor(s): Jimmy Nelson Appaturi, Thiruchelvi Pulingam, Kwai Lin Thong, Shalini Muniandy, Noraini Ahmad, Bey Fen Leo Rapid detection of foodborne pathogens is crucial as ingestion of contaminated food products may endanger human health. Thus, the objective of this study was to develop a biosensor using reduced graphene oxide-carbon nanotubes (rGO-CNT) nanocomposite via the hydrothermal method for accurate and rapid label-free electrochemical detection of pathogenic bacteria such as Salmonella enterica. The rGO-CNT nanocomposite was characterized using Fourier transform infrared spectroscopy, Raman spectroscopy, X-ray diffraction and transmission electron microscopy. The nanocomposite was dropped cast on the glassy carbon electrode and further modified with amino-modified DNA aptamer. The resultant ssDNA/rGO-CNT/GCE aptasensor was then used to detect bacteria by using differential pulse voltammetry (DPV) technique. Synergistic effects of aptasensor was evident through the combination of enhanced electrical properties and facile chemical functionality of both rGO and CNT for the stable interface. Under optimal experimental conditions, the aptasensor could detect S. Typhimurium in a wide linear dynamic range from 101 until 108 cfu mL−1 with a 101 cfu mL−1 of the limit of detection. This aptasensor also showed good sensitivity, selectivity and specificity for the detection of microorganisms. Furthermore, we have successfully applied the aptasensor for S. Typhimurium detection in real food samples.Graphical abstractImage 1
       
  • Application of a novel FAM-conjugated activity-based probe to determine
           cathepsin G activity intracellularly
    • Abstract: Publication date: Available online 23 October 2019Source: Analytical BiochemistryAuthor(s): Roman Schroeder, Renata Grzywa, Christian Rainer Wirtz, Marcin Sienczyk, Timo Burster Cathepsin G (CatG) is responsible for several distinct immune processes of adaptive and innate immunity depending on extra- or intracellular occurrence of CatG. Recently, we established a method to detect CatG activity at the cell surface of natural killer cells by using the activity-based probe MARS116-Bt in flow cytometry. MARS116-Bt consists of biotin, spacer, amino acid sequence, and a phosphonate warhead which binds covalently to the serine amino acid residue within the active center of CatG. Herein, MARS116 was conjugated to 5(6)-carboxyfluorescein (FAM) in order to limit non-specific signal-to-noise ratio generally resulting from binding of fluorescein-labelled avidin (avidin-FAM) to biotinylated, intracellular proteins; since MARS116-Bt is incubated with avidin-FAM in a second labelling step. MARS116-FAM was capable to detect intracellular CatG activity, in contrast to the control compound MARS116*-FAM which lacks the functional phosphonate warhead crucial for binding to the active-site of CatG and contains a carboxyl group instead. Furthermore, intracellular CatG activity was determined in CD4+ T cells, CD8+ T cells as well as in T regulatory cell (Treg) subsets. Thus, MARS116-FAM is a convenient activity-based probe to detect intracellular CatG activity in a flow cytometry approach.Graphical abstractImage 1
       
  • iProtease-PseAAC(2L): A two-layer predictor for identifying proteases and
           their types using Chou's 5-step-rule and general PseAAC
    • Abstract: Publication date: Available online 22 October 2019Source: Analytical BiochemistryAuthor(s): Yaser Daanial Khan, Najm Amin, Waqar Hussain, Nouman Rasool, Sher Afzal Khan, Kuo-Chen Chou Proteases are a type of enzymes, which perform the process of proteolysis. Proteolysis normally refers to protein and peptide degradation which is crucial for the survival, growth and wellbeing of a cell. Moreover, proteases have a strong association with therapeutics and drug development. The proteases are classified into five different types according to their nature and physiochemical characteristics. Mostly the methods used to differentiate protease from other proteins and identify their class requires a clinical test which is usually time-consuming and operator dependent. Herein, we report a classifier named iProtease-PseAAC (2L) for identifying proteases and their classes. The predictor is developed employing the flow of 5-step rule, initiating from the collection of benchmark dataset and terminating at the development of predictor. Rigorous verification and validation tests are performed and metrics are collected to calculate the authenticity of the trained model. The self-consistency validation gives the 98.32% accuracy, for cross-validation the accuracy is 90.71% and jackknife gives 96.07% accuracy. The average accuracy for level-2 i.e. protease classification is 95.77%. Based on the above-mentioned results, it is concluded that iProtease-PseAAC (2L) has the great ability to identify the proteases and their classes using a given protein sequence.
       
  • Carbon dots derived from pea for specifically binding with
           Cryptococcus neoformans
    • Abstract: Publication date: Available online 20 October 2019Source: Analytical BiochemistryAuthor(s): Qian Su, Chunsong Lu, Jie Liu, Xiaoming Yang Herein, we have prepared two kinds of carbon dots (CDs) on the basis of pea (p-CDs) and sesame (s-CDs) through a facile hydrothermal way. Basically, the two CDs described here exhibited obvious superiority mainly including satisfactory stability, non-toxicity and photobleaching resistance, and also the whole synthesis procedures for both p-CDs and s-CDs were environmental-friendly. Significantly, p-CDs showed specific binding with pathogenic fungus of Cryptococcus neoformans, and thereby revealing the potential of staining the fungus. Additionally, we employed Cryptococcus neoformans to infect mice, and utilized p-CDs to trace the positions of the fungus, proving the fluorescent-staining prospect of p-CDs.Graphical abstractHerein, we have developed two kinds of carbon dots (CDs) originated from pea (p-CDs) and sesame (s-CDs) through a facile hydrothermal way. Importantly, p-CDs showed the specific binding with the pathogenic fungus of Cryptococcus neoformans, thus exhibited the potential of staining the fungus. In addition, we employed Cryptococcus neoformans to infect the mice, and utilized p-CDs to trace the position of the fungus, proving the fluorescent staining ability of p-CDs.Image 1
       
  • Determination of unbound valproic acid in plasma using centrifugal
           ultrafiltration and gas chromatography:Application in TDM
    • Abstract: Publication date: Available online 18 October 2019Source: Analytical BiochemistryAuthor(s): Xurui Gu, Shuran Yu, Qilin Peng, Mubai Ma, Yani Hu, Boting Zhou AimIn order to monitor the free concentration of VPA in plasma, a simple and rapid method needs to be developed.MethodsThe free fraction of VPA in plasma was obtained by centrifugal ultrafiltration (CF-UF) devices. Cyclohexanecarboxylic acid was used as internal standard. Valproate in plasma was converted to VPA by sulfuric acid acidification, and dichloromethane was used as solvent for extraction. Nitrogen was the carrier gas, the samples were separated by capillary column, and the flame ionization detector was used to detect VPA fragment ions for quantitative analysis.ResultsThe assay had good specificity and stability. The linear range of the assay was 0.56–28.11 mg/L. The intra-day and inter-day precision (RSDs) of the assay were all within 15%, and the accuracy (RE) was 2.58%. The recoveries of VPA with three different concentrations were 102.03 ± 1.05, 101.45 ± 2.08 and 102.58 ± 3.38. The results of therapeutic drug monitoring (TDM) in pediatric inpatient group and outpatient group showed significant differences between the two groups (P 
       
  • An aptamer-based colorimetric lateral flow assay for the detection of
           human epidermal growth factor receptor 2 (HER2)
    • Abstract: Publication date: Available online 12 October 2019Source: Analytical BiochemistryAuthor(s): Velu Ranganathan, Sathya Srinivasan, Aryan Singh, Maria C. DeRosa An aptamer-based colorimetric lateral flow assay was developed for the detection of human epidermal growth factor receptor 2 (HER2). In this study, two approaches were examined using HER2 binding aptamers and gold nanoparticles. The first method used was a solution-based adsorption-desorption colorimetric approach wherein aptamers were adsorbed onto the gold nanoparticle surface. Upon the addition of HER2, HER2 binds specifically with its aptamer, releasing the gold nanoparticles. Addition of NaCl then induces the formation of gold nanoparticle aggregates. This leads to a color change from red to blue and a detection limit of 10 nM was achieved. The second method used an adsorption-desorption colorimetric lateral flow assay approach wherein biotin-modified aptamers were adsorbed onto the gold nanoparticle surface in the absence of HER2. In the presence of HER2, HER2 specifically binds with its aptamer leading to release of the gold nanoparticles. These solutions were applied to the lateral flow assay format and a detection limit of 20 nM was achieved. Both colorimetric and lateral flow assays are inexpensive, simple, rapid to perform and produce results visible to the naked-eye.Graphical abstractImage 1
       
  • Ramified rolling circle amplification for synthesis of nucleosomal DNA
           sequences
    • Abstract: Publication date: 1 January 2020Source: Analytical Biochemistry, Volume 588Author(s): Clara L. van Emmerik, Ivana Gachulincova, Vincenzo R. Lobbia, Mark A. Daniëls, Hans A. Heus, Abdenour Soufi, Frank H.T. Nelissen, Hugo van Ingen Nucleosomes are a crucial platform for the recruitment and assembly of protein complexes that process the DNA. Mechanistic and structural in vitro studies typically rely on recombinant nucleosomes that are reconstituted using artificial, strong-positioning DNA sequences. To facilitate such studies on native, genomic nucleosomes, there is a need for methods to produce any desired DNA sequence in an efficient manner. The current methods either do not offer much flexibility in choice of sequence or are less efficient in yield and labor. Here, we show that ramified rolling circle amplification (RCA) can be used to produce milligram amounts of a genomic nucleosomal DNA fragment in a scalable, one-pot reaction overnight. The protocol is efficient and flexible in choice of DNA sequence. It yields 10-fold more product than PCR, and rivals production using plasmids. We demonstrate the approach by producing the genomic DNA from the human LIN28B locus and show that it forms functional nucleosomes capable of binding pioneer transcription factor Oct4.Graphical abstractImage 1
       
  • High-throughput screening of enzyme mutants by comparison of their
           activity ratios to an enzyme tag
    • Abstract: Publication date: Available online 12 October 2019Source: Analytical BiochemistryAuthor(s): Yaping Li, Huimin Chong, Xiang Zhang, Xiaolan Yang, Fei Liao With Escherichia coli alkaline phosphatase (ECAP) as the tag fused to the N-terminus of Pseudomonas Aeruginosa arylsulfatase (PAAS) and its mutants via a flexible linker, the comparison of the activity ratios of an applicable enzyme and its mutants to a suitable enzyme tag in cell lysates of their fused forms was tested for high-throughput (HTP) screening of mutants. After both the induced expression of a fused form and alkaline lysis of the transformed cells in microplate wells, HTP assay of the activities of ECAP and PAAS/mutant was realized via spectrophotometric-dual-enzyme-simultaneous-assay to derive their activity ratio. The successful induced expression of fused forms required ECAP activities higher than 5.3 U/L in cell lysates. Of three representative fused PAAS/mutants in cell lysates, there were similar proteolytic fragments and the comparison of their activity ratios greatly enhanced the recognition of weakly positive mutants. After saturation mutagenesis at M72 of the fused PAAS, the activity ratios of PAAS/mutants to ECAP in cell lysates of their fused forms were proportional to specific activities of their non-fused counterparts in cell lysates by an immunoturbidimetric assay. Therefore, the proposed strategy was absorbing for both HTP screening of mutants and HTP elucidation of sequence-activity relationship of applicable enzymes.Graphical abstractWith applicable enzyme/mutants fused to an enzyme tag, the activity ratios of their fused forms in cell lysates linearly responded to specific activities of their non-fused counterparts in cell lysates, supporting an absorbing strategy for both HTP screening of mutants and HTP elucidation of sequence-activity relationship.Image 1
       
  • Detection of tumor suppressor protein p53 with special emphasis on
           biosensors: A review
    • Abstract: Publication date: Available online 11 October 2019Source: Analytical BiochemistryAuthor(s): Deepa, Shikha Pundir, C.S. Pundir Cancer is a general word, which specifies a cluster of diseases affecting almost every-body part. Cancer is a second leading cause of death, globally. The tumor suppressor protein p53 is known to play a vital role in prevention of cancer. The enhanced and active form of p53 controls target gene expression through binding with DNA response elements (REs) and thus inhibits tumor cell growth. p53 is found mutated in more than 50% of the cancers. The wide mutation spectrum of p53 gene underlies the process of tumor development. Hence, the accurate quantification of p53 protein levels has great importance in early diagnosis of cancer. The biosensors are the tools, which convert biological interactions into readout signals. These are the most simple, sensitive, specific, rapid and precise devices used for determination of altered protein levels. Hence, Bio sensing methods have great potential as a diagnostic tool for determination of p53 protein. This review describes the screening of most recent and different types of bio sensing approaches, reported for detection of p53. The review also discusses the necessity of biomarker based bio-sensing methods for early diagnosis of cancer. The overall aim of this review is to advance the future analytical approaches of p53 biosensors.
       
  • RNA isolation from corals and other cnidarian species using urea-LiCl as a
           denaturant
    • Abstract: Publication date: Available online 9 October 2019Source: Analytical BiochemistryAuthor(s): Christelle Bouchard, Jay Michaels, Heather Brown-Harding A method of RNA isolation using a solution of urea-LiCl as a denaturing agent was tested on stony coral. As the method does not require homogenization of tissues prior to their incubation in the denaturant, specimen collected in the field can be immediately transferred to the urea-LiCl solution. The method was also tested on tissues of other cnidarian species. RNA was isolated from fresh tissues of jellyfish and sea anemones using two protocols – that is, incubations in the urea-LiCl solution were either performed on homogenized tissues or on intact tissues or specimen. RNA quality was evaluated on a bioanalyser.
       
  • Analytical methods for determination of carbonyl compounds and nicotine in
           electronic No-Smoking aid refill solutions
    • Abstract: Publication date: Available online 9 October 2019Source: Analytical BiochemistryAuthor(s): Jong-Hoon Lee, Jayanta Kumar Patra, Han-Seung Shin The present investigation aimed to develop analytical methods to determine carbonyl compounds and nicotine and to assess the carbonyl compounds and nicotine concentrations in commercial refill solutions for electronic no-smoking aids (ENSAs). The analytical methods for carbonyl compounds and nicotine in refill solutions for ENSAs were developed and analyzed from 30 popular branded products by gas chromatography and liquid chromatography. They were then validated in terms of linearity of the calibration curve, limit of detection (LOD), limit of quantification (LOQ), accuracy (%), and precision (%). Further, the existence of carbonyl compounds and nicotine in the refill solutions for ENSAs was also evaluated. None of the samples contained nicotine, but carbonyl compounds were sensed in a concentration range from 0.9 to 11.65 μg/mL. Manufacturers of ENSA refill solutions have advertised no-smoking aids as less harmful than tobacco cigarettes and as free from harmful substances. However, carbonyl compounds were detected in all 30 samples. The investigation of ENSA refill solutions needs to be broadened to gain a better accepting of the existence of harmful materials in ENSA refill solutions and prevent unsuspected ill-health effects.Graphical abstractImage 1
       
  • Rapid and sensitive detection of interleukin-6 in serum via time-resolved
           lateral flow immunoassay
    • Abstract: Publication date: Available online 1 October 2019Source: Analytical BiochemistryAuthor(s): Dezhi Huang, Haojun Ying, Dongneng Jiang, Fei Liu, Ye Tian, Chunlan Du, Liqun Zhang, Xiaoyun Pu Interleukin 6 (IL-6) is an interleukin that acts as both a proinflammatory and anti-inflammatory cytokine. It can be used as a potential diagnostic biomarker for sepsis. The aim of this study was to establish an easy-to-use detection kit for rapid, quantitative and on-site detection of IL-6. To develop the new IL-6 quantitative detecting kit, a double-antibody sandwich immunofluorescent assay was employed based on europium nanoparticles (Eu-np) combined with lateral flow immunoassay (LFIA). The performance of the new developed kit was evaluated in the aspects of parallel analysis, linearity, sensitivity, precision, accuracy, specificity and clinical sample analysis. Two-hundred and fourteen serum samples were used to carry out the clinical sample analysis. The new IL-6 quantitative detecting kit exhibited a wide linear range (2–500 pg/mL) and a good sensitivity (0.37 pg/mL). The intra-assay coefficient of variation (CV) and the inter-assay CV were 5.92%–8.87% and 7.59%–9.04%, respectively. The recovery rates ranged from 102% to 106%. Furthermore, a high correlation (n = 214, r = 0.9756, p 
       
 
 
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