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CHEMISTRY (590 journals)                  1 2 3 4 5 6 | Last

2D Materials     Hybrid Journal   (Followers: 5)
Accreditation and Quality Assurance: Journal for Quality, Comparability and Reliability in Chemical Measurement     Hybrid Journal   (Followers: 26)
ACS Catalysis     Full-text available via subscription   (Followers: 28)
ACS Chemical Neuroscience     Full-text available via subscription   (Followers: 16)
ACS Combinatorial Science     Full-text available via subscription   (Followers: 18)
ACS Macro Letters     Full-text available via subscription   (Followers: 20)
ACS Medicinal Chemistry Letters     Full-text available via subscription   (Followers: 25)
ACS Nano     Full-text available via subscription   (Followers: 247)
ACS Photonics     Full-text available via subscription   (Followers: 5)
ACS Synthetic Biology     Full-text available via subscription   (Followers: 16)
Acta Chemica Iasi     Open Access  
Acta Chimica Sinica     Full-text available via subscription  
Acta Chimica Slovaca     Open Access   (Followers: 5)
Acta Chromatographica     Full-text available via subscription   (Followers: 9)
Acta Facultatis Medicae Naissensis     Open Access   (Followers: 1)
Acta Metallurgica Sinica (English Letters)     Hybrid Journal   (Followers: 7)
adhäsion KLEBEN & DICHTEN     Hybrid Journal   (Followers: 5)
Adhesion Adhesives & Sealants     Hybrid Journal   (Followers: 5)
Adsorption Science & Technology     Full-text available via subscription   (Followers: 10)
Advanced Functional Materials     Hybrid Journal   (Followers: 43)
Advanced Science Focus     Free   (Followers: 2)
Advances in Chemical Engineering and Science     Open Access   (Followers: 26)
Advances in Chemical Science     Open Access   (Followers: 10)
Advances in Chemistry     Open Access  
Advances in Colloid and Interface Science     Full-text available via subscription   (Followers: 14)
Advances in Drug Research     Full-text available via subscription   (Followers: 19)
Advances in Environmental Chemistry     Open Access  
Advances in Enzyme Research     Open Access   (Followers: 1)
Advances in Fluorine Science     Full-text available via subscription   (Followers: 7)
Advances in Fuel Cells     Full-text available via subscription   (Followers: 13)
Advances in Heterocyclic Chemistry     Full-text available via subscription   (Followers: 8)
Advances in Materials Physics and Chemistry     Open Access   (Followers: 15)
Advances in Nanoparticles     Open Access   (Followers: 12)
Advances in Organometallic Chemistry     Full-text available via subscription   (Followers: 10)
Advances in Polymer Science     Hybrid Journal   (Followers: 37)
Advances in Protein Chemistry     Full-text available via subscription   (Followers: 7)
Advances in Protein Chemistry and Structural Biology     Full-text available via subscription   (Followers: 11)
Advances in Quantum Chemistry     Full-text available via subscription   (Followers: 6)
African Journal of Chemical Education     Open Access   (Followers: 1)
African Journal of Pure and Applied Chemistry     Open Access   (Followers: 5)
Afrique Science : Revue Internationale des Sciences et Technologie     Open Access   (Followers: 1)
Agrokémia és Talajtan     Full-text available via subscription   (Followers: 1)
Alkaloids: Chemical and Biological Perspectives     Full-text available via subscription   (Followers: 4)
AMB Express     Open Access  
Ambix     Hybrid Journal   (Followers: 2)
American Journal of Applied Sciences     Open Access   (Followers: 32)
American Journal of Biochemistry and Biotechnology     Open Access   (Followers: 121)
American Journal of Biochemistry and Molecular Biology     Open Access   (Followers: 11)
American Journal of Chemistry     Open Access   (Followers: 23)
American Journal of Plant Physiology     Open Access   (Followers: 11)
American Mineralogist     Full-text available via subscription   (Followers: 7)
Analyst     Full-text available via subscription   (Followers: 38)
Angewandte Chemie     Hybrid Journal   (Followers: 21)
Angewandte Chemie International Edition     Hybrid Journal   (Followers: 184)
Annales UMCS, Chemia     Open Access   (Followers: 2)
Annals of Clinical Chemistry and Laboratory Medicine     Open Access   (Followers: 1)
Annual Reports in Computational Chemistry     Full-text available via subscription   (Followers: 1)
Annual Reports Section A (Inorganic Chemistry)     Full-text available via subscription   (Followers: 3)
Annual Reports Section B (Organic Chemistry)     Full-text available via subscription   (Followers: 7)
Annual Review of Chemical and Biomolecular Engineering     Full-text available via subscription   (Followers: 10)
Annual Review of Food Science and Technology     Full-text available via subscription   (Followers: 13)
Anti-Infective Agents     Hybrid Journal   (Followers: 2)
Antiviral Chemistry and Chemotherapy     Full-text available via subscription  
Applied Organometallic Chemistry     Hybrid Journal   (Followers: 4)
Applied Spectroscopy     Full-text available via subscription   (Followers: 16)
Applied Surface Science     Hybrid Journal   (Followers: 22)
Arabian Journal of Chemistry     Full-text available via subscription   (Followers: 6)
ARKIVOC     Open Access   (Followers: 1)
Asian Journal of Biochemistry     Open Access   (Followers: 1)
Australian Journal of Chemistry     Hybrid Journal   (Followers: 5)
Autophagy     Hybrid Journal   (Followers: 3)
Avances en Quimica     Open Access   (Followers: 1)
Biochemical Pharmacology     Hybrid Journal   (Followers: 6)
Biochemistry     Full-text available via subscription   (Followers: 199)
Biochemistry Insights     Open Access   (Followers: 4)
Biochemistry Research International     Open Access   (Followers: 5)
BioChip Journal     Hybrid Journal   (Followers: 1)
Bioinorganic Chemistry and Applications     Open Access   (Followers: 5)
Bioinspired Materials     Open Access   (Followers: 1)
Biointerface Research in Applied Chemistry     Open Access   (Followers: 1)
Biointerphases     Open Access   (Followers: 1)
Biology, Medicine, & Natural Product Chemistry     Open Access  
Biomacromolecules     Full-text available via subscription   (Followers: 19)
Biomass Conversion and Biorefinery     Partially Free   (Followers: 7)
Biomedical Chromatography     Hybrid Journal   (Followers: 7)
Biomolecular NMR Assignments     Hybrid Journal   (Followers: 2)
BioNanoScience     Partially Free   (Followers: 4)
Bioorganic & Medicinal Chemistry     Hybrid Journal   (Followers: 31)
Bioorganic & Medicinal Chemistry Letters     Hybrid Journal   (Followers: 25)
Bioorganic Chemistry     Hybrid Journal   (Followers: 5)
Biopolymers     Hybrid Journal   (Followers: 16)
Biosensors     Open Access   (Followers: 3)
Biotechnic and Histochemistry     Hybrid Journal   (Followers: 3)
Boletin de la Sociedad Chilena de Quimica     Open Access  
Bulletin of the Chemical Society of Ethiopia     Open Access   (Followers: 3)
Bulletin of the Chemical Society of Japan     Full-text available via subscription   (Followers: 14)
C - Journal of Carbon Research     Open Access  
Cakra Kimia (Indonesian E-Journal of Applied Chemistry)     Open Access  
Canadian Association of Radiologists Journal     Full-text available via subscription   (Followers: 4)
Canadian Journal of Chemistry     Full-text available via subscription   (Followers: 5)

        1 2 3 4 5 6 | Last

Journal Cover   Chemistry and Materials Research
  [11 followers]  Follow
  This is an Open Access Journal Open Access journal
   ISSN (Print) 2224-3224 - ISSN (Online) 2225-0956
   Published by International Institute for Science, Technology and Education (IISTE) Homepage  [30 journals]
  • Retusasterol , a Novel Sterol and Glycoside Sitosterol Isolated from
           Nitraria Retusa. L.

    • Authors: Madian Al-Salem, Ziad Noufal
      Abstract: Phytochemical analysis of the CHCl3 and methanol fractions of Nitraria Retusa L. has led to the isolation and identification of a new sterol; Retusasterol and another known compound;  β- sitosterol glucoside. The structure elucidation of  both compounds was based on spectroscopy data IR, MS, 1H and 13C – NMR, DEPT (90,135), HMQS, COSY and HMBC. Keywords: Nitraria Retusa. L. , Retusasterol , β-Sitosterol , Sterol.
      Issue No: Vol. 7
  • The Effect of Nano Crystalline Cellulose-Filled to Tensile Strength of Oil
           Palm Trunk Starch-Based Adhesive

    • Authors: Sajaratud Dur, Basuki Wirjosentono, Mimpin Ginting, Saharman Gea
      Abstract: Has conducted research on the effect of nanocrystals of cellulose produced from oil palm trunk. Nano crystalline cellulose-field into the oil palm trunk starch modified. There was a increase in the quality of oil palm trunk starch which be used to as adhesives. Their modified starch added DSTB. Nano crystalline cellulose produced by oil palm empty fruit bunches used isolation method. Adhesive  characterized by tensile strength, and SEM. Durability and adhesion strength of the nanocomposites were compared to those of the Indonesian Standard for wood adhesives which there have been gave us a new information for adhesive. Nanocrystalline cellulose added 2% into nanocomposite were the optimal yield. Keywords: modified-starch, nanocrystalline cellulose, tensile strength, and SEM
      Issue No: Vol. 7
  • Molecular Dynamics and Vibrational Analysis of Pentacene: RHF and DFT

    • Authors: G.S.M Galadanci, Chifu E. Ndikilar, Sabiu S.A, Safana A
      Abstract: The molecular dynamics of Pentacene molecule and its vibrational behavior is studied using the Gaussian software at the Restricted Hartree Fock and Density Functional Theory levels of computation. Two medium size basis sets, 6-31G and 6-31G* are used. The dipole moments, thermal energies and band gap computations for the molecule are obtained. The Infra Red (IR) and Raman vibrational frequencies are vividly examined and the most intense IR and Raman frequencies identified. The computed band gap at DFT level of theory for both basis sets is much in agreement with the experimental value. Keywords: Pentacene,  Hartree-fork, DFT, bond-angle, bondlength, Raman, frequencies
      Issue No: Vol. 7
  • Sorption of Zinc and Iron in Soils of Selected Areas in Southern Ethiopia

    • Authors: Abay Ayalew, Sheleme Beyene, Fran Walley
      Abstract: Sorption is one of the most important chemical processes in soils that determine the quantity of plant nutrients retained on soil surfaces and, therefore, affect transport of nutrients and regulate the concentration of nutrients in soil solution. A study was conducted in soils of Zeway, Alage, Butajira, Hawassa Zuria, Halaba and Taba in southern Ethiopia with the objective of evaluating the extent of Zn and Fe sorption.  Surface soils (0-30cm depth) from the sites were collected, air dried and analyzed for particle size distribution, pH, EC, CEC, organic C, calcium carbonate equivalent, macro and micro nutrients using standard procedures.  A 0.5 g soil sample was placed in a 100 ml plastic bottle and equilibrated with 0.01 M CaCl2 overnight using a soil/solution ratio of 1:50 to determine the sorption of Zn and Fe. Stock solutions of ZnSO4 and FeSO4 with concentrations of 0, 2, 5, 10, 15 and 30 mg L-1Zn Fe respectively were mixed with the soil-0.01 MCaCl2 solution and equilibrated for 24 hours. The suspension was filtered, and the concentrations of Zn and Fe in the clear extract solution were determined using Atomic Absorption Spectrophotometer. The Langmuir and Freundlich adsorption equations were applied to determine the sorption relationships. The results indicated that the soils differ in physicochemical characteristics as well as Zn and Fe sorption capacities. Additionally, sorptions of the two micronutrients were high in all soils, except that of Zn in Hawassa soils, where added Zn was remained in the soil solution. Sorptions of Zn and Fe in the experimental soils followed Langmuir and Freundlich models, respectively. Zn adsorption was strongly related with soil organic carbon, calcium carbonate, iron and manganese contents of the soils, whereas iron was strongly related to clay. Fertilizer management for optimum crop production should therefore consider inclusion of Zn and Fe in the experimental sites, except Zn at Hawassa. Keywords: Freundlich, Iron, Isotherms, Langmuir, Sorption, Zinc
      Issue No: Vol. 7
  • Experimental Optimization of Lead (II) Bioadsorption from Aqueous Solution
           onto Banana Stalk using Central Composite Design

    • Authors: Ogunleye; O. O., Ajala, M. A., Agarry, S. E., Agbede, O.O.
      Abstract: This study investigated the effect of operating parameters on the bioadsorption process of Pb(II) from its aqueous solution using three Banana Stalk (BS) bioadsorbents [Raw (RBS), Acid Activated (AABS) and Base Activated (BABS) ]. A five-factor, three-level Central Composite Design (CCD) was applied to determine the effects of independent variables (initial metal concentration, contact time, temperature, adsorbent dosage and solution pH) on percentage Pb(II) removal. Response Surface Methodology (RSM) was employed to optimize the parameters in the experiment. AABS had the highest percentage removal (96.13%) from the preliminary experiment and was then used for the optimisation experiment. Data analysis showed that all the variables significantly affected the percentage Pb(II) removal at p < 0.05. The square of the adjusted coefficient of determination for regression model of percentage Pb(II) removal is 0.9355. Optimum percentage removal of 96.41% was obtained using AABS when the Pb(II) concentration, contact time, temperature, dosage and solution pH were 21.83g/mL, 152.21minutes, 50oC, 0.90g and 8.00,  respectively. There absolute error between the experimental and the predicted optimum percentage removal was less than 1%. Keywords: Banana stalk, optimization, bioadsorption, acid, base.
      Issue No: Vol. 7
  • Synthesis of MgO-ZrO2 by Co-Precipitation Method and Study Its Structure
           and Characteristics

    • Authors: Alaa Alksair, Ibrahim Ismail
      Abstract: The ceystalline phase of magnisum zirconate (MgZrO3) white colored was obtained by co-precepitation method in an alkali solution. The zirconium chloride (ZrCl4), magnesium chloride (MgCl2.6H2O) and the alkaline solution of sodium hydroxide (NaOH) were used as starting materials. The solution of starting materials were preparated in different concentration. The precipitation of two solution was accomplished at the same time. Then the products were filtred, dried and burned at different temperatures to obtain required crystals. After that, the samples studied by x-ray powder diffraction method and thermal differential analysis (DTA). This study appears that adding enough amount of magnesium oxide keep the crystal type of zirconium oxide with tetragonal type and the magnesium zirconate with cubic crystal type can synthesized in  temperature (800- 1000)°C. Key words: co-precepitation, magnisum  zirconate, MgZrO3.
      Issue No: Vol. 7
  • Role Enhancement of ZnO nanoparticles and ZnO/Ag composite for Medical

    • Authors: Mukhlis M Ismail, Logean Q Ibraheem, Thorria R. Marzoog, Duha S Ahmed, Mohanad D Humadi
      Abstract: ZnO nanoparticles assisted with ethanol and 2propanol as capping agent investigated the medical activities of ZnO nanoparticles and ZnO/Ag composite. ZnO nanoparticles were prepared using zinc acetate and silver nitrate as a source of zinc and silver. ZnO/Ag composite also prepared and studied the medical activities. XRD pattern indicates that the structure of ZnO was hexagonal wurtzite with average size 5 nm according to Scherre's formula. The optical band gap of ZnO nanoparticle showed very sensitive for using different capping agent as shown in UV-VIS spectra and also showed blue shift in wavelength corresponding to capping agent. Finally, the antibacterial properties of ZnO and ZnO/Ag composite against Gram-negative and Gram-positive bacteria have been demonstrated using well diffusion method and indentify their antibacterial effects compared with organic antibacterial agents. Keywords: ZnO nanoparticles, ZnO/Ag composite, antibacterial.
      Issue No: Vol. 7
  • Determination of Some Cephalosporins in Pharmaceutical Dosage Forms by
           RP-HPLC Method

    • Authors: Anas Alfeen, Bashir Elias
      Abstract: A High Performance liquid chromatographic method was developed for the determination of Cephalosporins like as: Cefaclor monohydrate, Cefalexine monohydrate, Cefadroxil monohydrate in pharmaceutical dosage forms. Isocratic separation was performed on an Enable C18 column (250 mm × 4.6 mm i.d., 5.0 μm) using Triethylamine: Methanol: Acetonitrile: Ultra Pure Water (2: 10: 20: 68 v/v%) as the mobile phase at a flow rate of 1.0 ml/min. The PDA detection wavelength was set at 265nm. The linearity was observed over a concentration range of 0.1–80 μg/ml for HPLC method (correlation coefficient=0.999). The developed methods were validated according to ICH guidelines. The relative standard deviation values for the method precision studies were < 2%, and the accuracy was > 99%. The developed method was used successfully for the determination of Cefaclor, Cephalexin, Cefadroxil  in Capsule, Tablet and  dry syrup formulations. Keywords: Cefaclor (CA), Cefalexine (CF), Cefadroxil (CX), HPLC.
      Issue No: Vol. 7
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