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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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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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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Characterization of silver nanoparticles synthesized using an endophytic fungus, Penicillium oxalicum having potential antimicrobial activity
Advances in Natural Sciences: Nanoscience and Nanotechnology - - 2019
The aim of the present study was to test the efficacy of the extracellular mycelium extract of Penicillium oxalicum isolated from Phlogacanthus thyrsiflorus to biosynthesize silver nanoparticles. It was characterized using ultraviolet–visible absorption spectroscopy, atomic force microscopy, transmission electron microscopy and Fourier transforms infrared spectroscopy. Th...... hiện toàn bộ
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Development of electrochemical immunosensors based on different serum antibody immobilization methods for detection of Japanese encephalitis virus
Advances in Natural Sciences: Nanoscience and Nanotechnology - - 2019
This paper describes the development of electrochemical immunosensors based on human serum antibodies with different immobilization methods for detection of Japanese encephalitis virus (JEV). Human serum containing anti-JEV antibodies was used to immobilize onto the surface of silanized interdigitated electrodes by four methods: direct adsorption (APTES-serum), covalent binding with a cross linker...... hiện toàn bộ
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