Advances in Natural Sciences: Nanoscience and Nanotechnology

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Characterization of the thin layer photocatalysts TiO2 and V2O5- and Fe2O3- doped TiO2 prepared by the sol–gel method
Advances in Natural Sciences: Nanoscience and Nanotechnology - - 2019
The catalysts TiO2 and TiO2 doped with Fe and V were prepared using the sol–gel method. TiO2-modified samples were obtained in the form of a thick film on pyrex glass sticks and tubes and were used as catalysts in the gas phase photo-oxidation of p-xylene. The physico-chemical characteristics of the catalysts were determined using the methods of Brunauer–Emmett–Teller adsorption, x...... hiện toàn bộ
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Synthesis, characterization and application of nanozeolite NaX from Vietnamese kaolin
Advances in Natural Sciences: Nanoscience and Nanotechnology - - 2019
This paper presents the results of synthesis of nanozeolite NaX from Vietnamese kaolin. Influence factors on the control of crystal sizes and application of synthesized materials as adsorbent for organic compound are discussed. The results show that there are several factors that influence the synthesis. When water content in gel increases, crystal size of NaX increases sharply. The increase...... hiện toàn bộ
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Development of the layer-by-layer biosensor using graphene films: application for cholesterol determination
Advances in Natural Sciences: Nanoscience and Nanotechnology - - 2019
The preparation and characterization of graphene films for cholesterol determination are described. The graphene films were synthesized by thermal chemical vapor deposition (CVD) method. Methane gas (CH4) and copper tape were used as carbon source and catalyst in the graphene growth process, respectively. The intergrated array was fabricated by using micro-electro-mechanical systems (MEMS) t...... hiện toàn bộ
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Nanoparticles as antiviral agents against adenoviruses
Advances in Natural Sciences: Nanoscience and Nanotechnology - - 2019
Two types of gold nanoparticles, covered with SiO2 shell and located on the SiO2 large nanoparticle-carrier, have been synthesized and used as antiviral agents against adenoviruses. Both antiviral effect and virucidal action of the nanoparticles have been studied. It has been shown that both types of nanoparticles demonstrate antiviral action. Dependence of antiviral activity of na...... hiện toàn bộ
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Operating parameters effect on physico-chemical characteristics of nanocrystalline apatite coatings electrodeposited on 316L stainless steel
Advances in Natural Sciences: Nanoscience and Nanotechnology - - 2019
Hydroxyapatite (HAp) was known as a bone implant material due to its biocompatibility, bioactive, chemical stability and its compositional similarity to natural bone. In this work nanocrystalline HAp coatings were prepared on 316L stainless steel (316LSS) substrates using a potentio-dynamic method (potential scanning in the range from 0 to  −1.6 V/SCE) in the presence of dissolved 3  ×  10−2 ...... hiện toàn bộ
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Highly sensitive fluorescence resonance energy transfer (FRET)-based nanosensor for rapid detection of clenbuterol
Advances in Natural Sciences: Nanoscience and Nanotechnology - - 2019
In this study we investigate the fabrication of a fluorescence resonance energy transfer (FRET)-based nanosensor for the detection of clenbuterol. The nanosensor consists of CdTe quantum dots coated by clenbuterol recognizable agent naphthol and diazotized clenbuterol. Changes in maximal photoluminescent intensities of the nanosensor were utilized to measure clenbuterol concentrations. The m...... hiện toàn bộ
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Small-size metamaterial perfect absorber operating at low frequency
Advances in Natural Sciences: Nanoscience and Nanotechnology - - 2019
A small-size metamaterial perfect absorber operating at low frequency is proposed. Due to the special design, the unit-cell dimension with respect to wavelength is very small, a/λ ~ 1/17, at the absorption frequency of 377 MHz. The absorption frequency is strongly dependent on the length of zigzag wire. In addition, the absorption is more than 94% in a wide range of incident angle ...... hiện toàn bộ
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Mulberry leaf extract mediated synthesis of gold nanoparticles and its anti-bacterial activity against human pathogens
Advances in Natural Sciences: Nanoscience and Nanotechnology - - 2019
Gold nanoparticles (Au-NPs) were synthesized at room temperature using Morus alba (mulberry) leaf extract as reducing and stabilizing agent. The development of plant mediated synthesis of nanoparticles is gaining importance due to its simplicity, low cost, non-toxicity, eco-friendliness, long term stability and reproducible aqueous synthesis method to obtain a self-assembly of near...... hiện toàn bộ
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Nanoparticles: synthesis and applications in life science and environmental technology*
Advances in Natural Sciences: Nanoscience and Nanotechnology - - 2019
This work focuses on the synthesis, functionalization, and application of gold and silver nanoparticles, magnetic nanoparticles Fe3O4, combination of 4-ATP-coated silver nanoparticles and Fe3O4 nanoparticles. The synthesis methods such as chemical reduction, seeding, coprecipitation,and inverse microemulsion will be outlined. Silica- and amino-coated nanoparticles are suitable for sever...... hiện toàn bộ
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Erratum: Characterization of nanostructured PbO2–PANi composite materials synthesized by combining electrochemical and chemical methods
Advances in Natural Sciences: Nanoscience and Nanotechnology - - 2019
This is an erratum for the article 2013 Adv. Nat. Sci: Nanosci. Nanotechnol. 4 015015 The full text of this article is available in the PDF provided.
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