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  Subjects -> PHYSICS (Total: 767 journals)
    - ELECTRICITY AND MAGNETISM (8 journals)
    - MECHANICS (20 journals)
    - NUCLEAR PHYSICS (44 journals)
    - OPTICS (91 journals)
    - PHYSICS (557 journals)
    - SOUND (18 journals)
    - THERMODYNAMICS (29 journals)

PHYSICS (557 journals)                  1 2 3 4 5 6 | Last

Acta Acustica united with Acustica     Full-text available via subscription   (Followers: 7)
Acta Mechanica     Hybrid Journal   (Followers: 15)
Advanced Composite Materials     Hybrid Journal   (Followers: 16)
Advanced Functional Materials     Hybrid Journal   (Followers: 38)
Advanced Materials     Hybrid Journal   (Followers: 400)
Advances in Condensed Matter Physics     Open Access   (Followers: 8)
Advances in Exploration Geophysics     Full-text available via subscription   (Followers: 3)
Advances in Geophysics     Full-text available via subscription   (Followers: 4)
Advances in High Energy Physics     Open Access   (Followers: 12)
Advances in Imaging and Electron Physics     Full-text available via subscription   (Followers: 3)
Advances in Materials Physics and Chemistry     Open Access   (Followers: 16)
Advances in Natural Sciences: Nanoscience and Nanotechnology     Open Access   (Followers: 14)
Advances in OptoElectronics     Open Access   (Followers: 3)
Advances In Physics     Hybrid Journal   (Followers: 9)
Advances in Physics Theories and Applications     Open Access   (Followers: 8)
Advances in Remote Sensing     Open Access   (Followers: 8)
Advances in Synchrotron Radiation     Hybrid Journal   (Followers: 1)
AIP Advances     Open Access   (Followers: 6)
AIP Conference Proceedings     Full-text available via subscription   (Followers: 2)
American Journal of Applied Sciences     Open Access   (Followers: 31)
American Journal of Condensed Matter Physics     Open Access   (Followers: 5)
American Journal of Signal Processing     Open Access   (Followers: 8)
Analysis and Mathematical Physics     Hybrid Journal   (Followers: 2)
Annalen der Physik     Hybrid Journal   (Followers: 3)
Annales Geophysicae (ANGEO)     Open Access   (Followers: 4)
Annales Henri PoincarĂ©     Hybrid Journal   (Followers: 1)
Annales UMCS, Physica     Open Access  
Annals of Nuclear Medicine     Hybrid Journal   (Followers: 3)
Annals of Physics     Hybrid Journal   (Followers: 2)
Annals of West University of Timisoara - Physics     Open Access  
Annual Reports on NMR Spectroscopy     Full-text available via subscription   (Followers: 1)
Annual Review of Analytical Chemistry     Full-text available via subscription   (Followers: 9)
Annual Review of Condensed Matter Physics     Full-text available via subscription   (Followers: 1)
Annual Review of Materials Research     Full-text available via subscription   (Followers: 4)
APL Materials     Open Access   (Followers: 6)
Applied Composite Materials     Hybrid Journal   (Followers: 9)
Applied Physics     Open Access  
Applied Physics A     Hybrid Journal   (Followers: 9)
Applied Physics Frontier     Open Access   (Followers: 1)
Applied Physics Letters     Hybrid Journal   (Followers: 26)
Applied Physics Research     Open Access   (Followers: 6)
Applied Physics Reviews     Hybrid Journal   (Followers: 8)
Applied Radiation and Isotopes     Hybrid Journal   (Followers: 5)
Applied Remote Sensing Journal     Open Access   (Followers: 9)
Applied Spectroscopy     Full-text available via subscription   (Followers: 12)
Applied Spectroscopy Reviews     Hybrid Journal   (Followers: 2)
Archive for Rational Mechanics and Analysis     Hybrid Journal   (Followers: 3)
ASTRA Proceedings     Open Access  
Astronomy & Geophysics     Hybrid Journal   (Followers: 1)
Astrophysical Journal Letters     Full-text available via subscription   (Followers: 3)
Atoms     Open Access  
Attention, Perception & Psychophysics     Full-text available via subscription   (Followers: 7)
Autonomous Mental Development, IEEE Transactions on     Hybrid Journal   (Followers: 5)
Axioms     Open Access  
Bangladesh Journal of Medical Physics     Open Access  
Bauphysik     Hybrid Journal   (Followers: 1)
Biomaterials     Hybrid Journal   (Followers: 34)
Biomedical Engineering, IEEE Reviews in     Full-text available via subscription   (Followers: 16)
Biomedical Engineering, IEEE Transactions on     Hybrid Journal   (Followers: 14)
Biomedical Imaging and Intervention Journal     Open Access   (Followers: 5)
Biophysical Reviews     Hybrid Journal  
Biophysical Reviews and Letters     Hybrid Journal   (Followers: 3)
BMC Biophysics     Open Access   (Followers: 7)
BMC Nuclear Medicine     Open Access   (Followers: 5)
Brazilian Journal of Physics     Hybrid Journal  
Broadcasting, IEEE Transactions on     Hybrid Journal   (Followers: 5)
Bulletin of Materials Science     Open Access   (Followers: 39)
Bulletin of the Atomic Scientists     Full-text available via subscription   (Followers: 4)
Bulletin of the Lebedev Physics Institute     Hybrid Journal   (Followers: 1)
Bulletin of the Russian Academy of Sciences: Physics     Hybrid Journal  
Caderno Brasileiro de Ensino de FĂ­sica     Open Access  
Canadian Journal of Physics     Full-text available via subscription   (Followers: 1)
Cells     Open Access   (Followers: 1)
Central European Journal of Physics     Hybrid Journal   (Followers: 1)
CERN courier. International journal of high energy physics     Free  
Chinese Journal of Astronomy and Astrophysics     Full-text available via subscription   (Followers: 1)
Chinese Physics B     Full-text available via subscription  
Chinese Physics C     Full-text available via subscription  
Chinese Physics Letters     Full-text available via subscription  
Cohesion and Structure     Full-text available via subscription   (Followers: 2)
Colloid Journal     Hybrid Journal   (Followers: 2)
Communications in Mathematical Physics     Hybrid Journal   (Followers: 2)
Communications in Numerical Methods in Engineering     Hybrid Journal   (Followers: 3)
Communications in Theoretical Physics     Full-text available via subscription   (Followers: 1)
Composites Part A : Applied Science and Manufacturing     Hybrid Journal   (Followers: 53)
Composites Part B : Engineering     Hybrid Journal   (Followers: 72)
Computational Astrophysics and Cosmology     Open Access  
Computational Materials Science     Hybrid Journal   (Followers: 19)
Computational Mathematics and Mathematical Physics     Hybrid Journal   (Followers: 1)
Computational Particle Mechanics     Hybrid Journal  
Computational Science and Discovery     Full-text available via subscription  
Computer Physics Communications     Hybrid Journal  
Contemporary Concepts of Condensed Matter Science     Full-text available via subscription  
Contemporary Physics     Hybrid Journal   (Followers: 12)
Continuum Mechanics and Thermodynamics     Hybrid Journal   (Followers: 3)
Contributions to Plasma Physics     Hybrid Journal   (Followers: 2)
COSPAR Colloquia Series     Full-text available via subscription   (Followers: 1)
Cryogenics     Hybrid Journal   (Followers: 17)
Current Applied Physics     Full-text available via subscription   (Followers: 4)
Diamond and Related Materials     Hybrid Journal   (Followers: 12)

        1 2 3 4 5 6 | Last

Journal Cover   Advances in Natural Sciences: Nanoscience and Nanotechnology
  [16 followers]  Follow
    
  This is an Open Access Journal Open Access journal
   ISSN (Print) 2043-6254 - ISSN (Online) 2043-6262
   Published by Institute of Physics (IOP) Homepage  [56 journals]
  • Thermal and electromechanical characterization of top-down fabricated
           p-type silicon nanowires

    • Authors: Alain Bosseboeuf; Pierre Etienne Allain, Fabien Parrain, Xavier Le Roux, Nathalie Isac, Serge Jacob, Alexis Poizat, Philippe Coste, Seiffedine Maaroufi Arnaud Walther
      First page: 025001
      Abstract: In this paper we report thermal conductivity and piezoresistivity measurements of top-down fabricated highly boron doped ( N A = 1.5 × 10 19 cm −3 ) suspended Si nanowires. These measurements were performed in a cryogenic probe station respectively by using the 3 omega method and by in situ application of a longitudinal tensile stress to the nanowire under test with a direct four point bending of the Si nanowire die. Nanowires investigated have a thickness of 160 nm, a width in the 80–260 nm range and a length in the 2.5–5.2 μ m range. We found that for these geometries, thermal conduction still obeys Fourier’s law and that, as expected, the thermal conductivity is largely reduced when the nanowires width is shrunk, but, to a lower extent than published values for nanowires grown by vapor–liquid–solid (VLS) processes. While a large giant piezoresistance effect was evidenced by various authors when a static stress is applied, we only...
      Citation: Advances in Natural Sciences: Nanoscience and Nanotechnology
      PubDate: 2015-02-02T00:00:00Z
      Issue No: Vol. 6, No. 2 (2015)
       
  • 6,6-ionene-stabilized gold nanoparticles: synthesis, characterization and
           prospects of use

    • Authors: Vladimir V Apyari; Anna N Ioutsi, Viktoriya V Arkhipova, Stanislava G Dmitrienko Elena N Shapovalova
      First page: 025002
      Abstract: Synthesis of new polycation-stabilized gold nanoparticles was performed by the borohydride approach. 6,6-ionene was used as a polycationic stabilizer. The influence of several factors such as the acidity, the Au:ionene ratio and the concentration of sodium borohydride during the synthesis were investigated. The key role of the amount of HCl added during the synthesis on the behaviour of the products in time was shown. Optimal conditions for the synthesis were chosen. The prepared gold nanoparticles were characterized by surface plasmon resonance band at 520 nm. Their average diameter is 16 nm. Apart from spherical (73%), there were pentagonal (14%), hexagonal (7%), triangular (4%) and cylindrical (2%) nanoparticles. These particles were stable in solution for at least four month.s Aggregative stability of the nanoparticles in the presence of different inorganic anions was tested. It was shown that the most aggregative effect was produced by sulfate, which reveals the prospects fo...
      Citation: Advances in Natural Sciences: Nanoscience and Nanotechnology
      PubDate: 2015-02-02T00:00:00Z
      Issue No: Vol. 6, No. 2 (2015)
       
  • Interaction of nanosilver particles with human lymphocyte cells

    • Authors: Alena Zhornik; Ludmila Baranova, Igor Volotovski, Sergey Chizhik, Elizaveta Drozd, Margarita Sudas, Quoc Buu Ngo, Hoai Chau Nguyen, Thi Ha Huynh Trong Hien Dao
      First page: 025003
      Abstract: The damaging effects of nanoparticles were hypothesized to be the oxidative stress caused by the formation of reactive oxygen species and initiation of inflammatory reactions. In this context a study on the effects of nanosilver particles on the formation of reactive oxygen species in human lymphocyte culture was carried out. The obtained results showed that fluorescence intensity considerably increased after cells had interacted with nanosilver particles of varying concentrations, indicating the formation of reactive oxygen species and their accumulation in lymphocyte cells. Morphological study of the lymphocyte cells under the effects of nanosilver particles showed that the change in morphology depends on the concentration and size of nanosilver particles: for a size ≤20 nm the lymphocyte cell significantly shrank with pronounced differences in the morphological structure of the cell membrane, but for a size ≥200 nm no change was observed.
      Citation: Advances in Natural Sciences: Nanoscience and Nanotechnology
      PubDate: 2015-02-02T00:00:00Z
      Issue No: Vol. 6, No. 2 (2015)
       
  • Chemical modification of silicon nitride microsieves for capture of MCF-7
           circulating tumor cells of breast cancer

    • Authors: Thien Dien To; Huyen Thoai Le, Mai Ngoc Thi Dinh, Anh Tuan Nguyen, Tin Chanh Duc Doan Chien Mau Dang
      First page: 025006
      Abstract: Chemical modification of silicon nitride (SiN) microsieves with glutaraldehyde and 3-glycidoxypropyldimethylethoxysilane (GOPS) for bio-coupling with an antibody to capture MCF-7 circulating tumor cells of breast cancer is reported. In this research, the antibody monoclonal anti-cytokerantin–FITC with fluorescein isothiocyanate label was used due to its good selectivity to MCF-7 circulating tumor cells of breast cancer. Modification efficiency was determined by the variation of contact angle. The increase in contact angle of the microsieves treated with glutaraldehyde and GOPS indicated that the microsieve surface changed from hydrophilic to hydrophobic. These results confirmed the successful immobilization of glutaraldehyde and GOPS onto SiN microsieves. Antibody binding effect was evaluated by fluorescence microscopy. Fluorescent images exhibited that GOPS was more effective than the glutaraldehyde treatment. The GOPS-treated microsieves were then used for capture of MCF-7 cell...
      Citation: Advances in Natural Sciences: Nanoscience and Nanotechnology
      PubDate: 2015-02-12T00:00:00Z
      Issue No: Vol. 6, No. 2 (2015)
       
  • Rapid and sensitive detection of clenbuterol using a fluorescence
           nanosensor based on diazo coupling mechanism

    • Authors: Thi Thanh Hop Tran; Thi Mai Huong Do, Mai Ha Hoang, Duc Tuyen Nguyen, Quang Tuan Le, Duc Nghia Nguyen Trinh Tung Ngo
      First page: 025007
      Abstract: In this paper, the fluorescence resonance energy transfer (FRET) effect has been used for fabrication of nanosensor for the detection of clenbuterol. In the nanosensor, the CdTe quantum dots (QDs) are the donors while the acceptor is the super-macromolecule formed by the diazoation coupling mechanism between diazo clenbuterol and naphthylethylene diamine. Changes in fluorescence intensities of nanosensor were used to determine the clenbuterol concentration. We have successfully fabricated a nanosensor for detection of clenbuterol sensible to clenbuterol concentration of 10 −12 g ml −1 .
      Citation: Advances in Natural Sciences: Nanoscience and Nanotechnology
      PubDate: 2015-02-12T00:00:00Z
      Issue No: Vol. 6, No. 2 (2015)
       
  • Influence of polyaniline on photoelectrochemical characterization of TiO 2
           -PANI layers

    • Authors: Thi Tot Pham; The Duyen Nguyen, Thi Mai Xuan, Thi Thanh Thuy Mai, Hai Yen Tran Thi Binh Phan
      First page: 025008
      Abstract: TiO 2 -polyaniline (PANI) composites were prepared by thermal oxidation of titanium substrate combined with chemical polymerization of aniline. Their chemical structures were determined by infrared (IR) spectroscopy and x-ray analysis. Their morphological structures were characterized by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Their electro- and photoelectrochmical properties were examined by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) analysis. The results showed that their photoelectrochemical behavior was better than that of TiO 2 electrode; among them the more PANI existed in composite the higher was the anodic photoelectrochemical current. It was also found that the composite has structure in the range of nanosize.
      Citation: Advances in Natural Sciences: Nanoscience and Nanotechnology
      PubDate: 2015-02-12T00:00:00Z
      Issue No: Vol. 6, No. 2 (2015)
       
  • Synthesis and characterization of alloy catalyst nanoparticles PtNi/C for
           oxygen reduction reaction in proton exchange membrane fuel cell

    • Authors: Chi Linh Do; Thy San Pham, Ngoc Phong Nguyen, Viet Quan Tran Hong Hanh Pham
      First page: 025009
      Abstract: In this report, vulcan XC-72 supported PtNi alloy catalyst nanoparticles were synthesized by electroless deposition method using NaBH 4 as a reduction agent. The properties of the synthesized Pt-Ni/C catalysts were investigated and evaluated. Transmission electron microscopy (TEM) results showed that PtNi alloy catalysts dispersed well on the carbon supports and their particle size was in the range of 4–8 nm. X-ray diffraction (XRD) analysis confirmed that the crystal lattice of Pt and PtNi alloy is face centered cubic. In the presence of Ni atom, an XRD pattern showed that structure of PtNi alloy crystal was contracted, which affected the catalyst’s properties. The activity of the catalyst was estimated by electrochemical methods including cyclic voltammetry (CV) and linear sweep voltammetry (LSV). The electrochemical results indicated that the activity of PtNi/C alloy catalysts toward oxygen reduction reaction on cathode of PEMFC was higher in comparison with Pt/C cat...
      Citation: Advances in Natural Sciences: Nanoscience and Nanotechnology
      PubDate: 2015-02-12T00:00:00Z
      Issue No: Vol. 6, No. 2 (2015)
       
  • Quantum field theory of interacting plasmon–photon system

    • Authors: Van Hieu Nguyen; Bich Ha Nguyen
      First page: 025010
      Abstract: In the framework of functional integral approach, quantum theory of interacting plasmon–photon system was constructed on the basis of general postulates (axioms) called also first principles of electrodynamics and quantum theory of many-body systems. Since plasmons are complex quasiparticles appearing as the resonances in plasma oscillations of the electron gas in solids, we start from the general expression of total action functional of interacting system consisting of electron gas and electromagnetic field. The collective oscillations of electron gas are characterized by a real scalar field φ ( x ) called the collective oscillation field. In the harmonic approximation the collective oscillations behave like the small fluctuations around a background field φ 0 ( x ). The difference between φ ( x ) and φ 0 ( x ) is called the fluctuation field ζ ( x ). In the case of a homogeneous and isotropic electron ga...
      Citation: Advances in Natural Sciences: Nanoscience and Nanotechnology
      PubDate: 2015-02-20T00:00:00Z
      Issue No: Vol. 6, No. 2 (2015)
       
  • Synthesis of nanostructured manganese oxides based materials and
           application for supercapacitor

    • Authors: Trung Dung Dang; Thi Thu Hang Le, Thi Bich Thuy Hoang Thanh Tung Mai
      First page: 025011
      Abstract: Manganese oxides are important materials with a variety of applications in different fields such as chemical sensing devices, magnetic devices, field-emission devices, catalysis, ion-sieves, rechargeable batteries, hydrogen storage media and microelectronics. To open up new applications of manganese oxides, novel morphologies or nanostructures are required to be developed. Via sol—gel and anodic electrodeposition methods, M (Co, Fe) doped manganese oxides were prepared. On the other hand, nanostructured (nanoparticles, nanorods and hollow nanotubes) manganese oxides were synthesized via a process including a chemical reaction with carbon nanotubes (CNTs) templates followed by heat treatment. Scanning electron microscopy (SEM), transmission electron microscopy (TEM), cyclic voltammetry (CV) and impedance spectroscopy (EIS) were used for characterization of the prepared materials. The influence of chemical reaction conditions, heat treatment and template present on the morphology, ...
      Citation: Advances in Natural Sciences: Nanoscience and Nanotechnology
      PubDate: 2015-02-20T00:00:00Z
      Issue No: Vol. 6, No. 2 (2015)
       
  • Preparation of the vulcan XC-72R-supported Pt nanoparticles for the
           hydrogen evolution reaction in PEM water electrolysers

    • Authors: Huy Du Nguyen; T Thuy Luyen Nguyen, Khac Manh Nguyen, Thuc Huy Ha Quoc Hien Nguyen
      First page: 025012
      Abstract: Pt nanoparticles on vulcan XC-72R support (Pt/vulcan XC-72R) were prepared by the impregnation–reduction method. The Pt content, the morphological properties and the electrochemical catalysis of the Pt/vulcan XC 72R materials have been investigated by ICP-OES analysis, FESEM, TEM, and cyclic voltammetry. These materials were then used as catalyst for hydrogen evolution reaction at the cathode of proton exchange membrane (PEM) water electrolysers. The best catalyst was Pt/vulcan XC-72R prepared by the impregnation–reduction method which is conducted in two reducing steps with the reductants of sodium borohydride and ethylene glycol, respectively. The current density of PEM water electrolysers reached 1.0 A cm −2 when applying a voltage of 2.0 V at 25 °C.
      Citation: Advances in Natural Sciences: Nanoscience and Nanotechnology
      PubDate: 2015-02-20T00:00:00Z
      Issue No: Vol. 6, No. 2 (2015)
       
 
 
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