نتایج جستجو برای: silver nanocomposite

تعداد نتایج: 58656  

Journal: :Physical chemistry chemical physics : PCCP 2014
Robin Jude Vimal Michael Balaji Sambandam Thangavelu Muthukumar Manickam J Umapathy Periakaruppan T Manoharan

Silver doped zinc oxide nanoparticles are synthesized by a solution combustion method. The samples characterized by a variety of spectroscopic and other techniques clearly reveal the presence of silver nanoparticles as well as silver clusters. The silver in the two forms was identified by careful deconvolution of X-ray photoelectron spectral results. Their formation was also confirmed by the pr...

2015
Sangiliyandi Gurunathan Jae Woong Han Jung Hyun Park Eunsu Kim Yun-Jung Choi Deug-Nam Kwon Jin-Hoi Kim

BACKGROUND Graphene and graphene-based nanocomposites are used in various research areas including sensing, energy storage, and catalysis. The mechanical, thermal, electrical, and biological properties render graphene-based nanocomposites of metallic nanoparticles useful for several biomedical applications. Epithelial ovarian carcinoma is the fifth most deadly cancer in women; most tumors initi...

2017
Piotr Piszczek Żaneta Lewandowska Aleksandra Radtke Tomasz Jędrzejewski Wiesław Kozak Beata Sadowska Magdalena Szubka Ewa Talik Fabrizio Fiori

Bioactivity investigations of titania nanotube (TNT) coatings enriched with silver nanograins (TNT/Ag) have been carried out. TNT/Ag nanocomposite materials were produced by combining the electrochemical anodization and chemical vapor deposition methods. Fabricated coatings were characterized by scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), and Raman spectroscopy. ...

Journal: :Carbohydrate polymers 2015
Ana S Abreu M Oliveira Arsénio de Sá Rui M Rodrigues Miguel A Cerqueira António A Vicente A V Machado

Montmorillonite modified with a quaternary ammonium salt C30B/starch nanocomposite (C30B/ST-NC), silver nanoparticles/starch nanocomposite (Ag-NPs/ST-NC) and both silver nanoparticles/C30B/starch nanocomposites (Ag-NPs/C30B/ST-NC) films were produced. The nanoclay (C30B) was dispersed in a starch solution using an ultrasonic probe. Different concentrations of Ag-NPs (0.3, 0.5, 0.8 and 1.0mM) we...

Journal: :Coatings 2022

A natural polyphenolic compound was used to assemble nanocomposites. Owing its stable bioactive properties, bamboo has earned significant attention in material science. Its high nutrient content and hydrophilicity makes more vulnerable mold attacks shortened shelf lives. To produce efficient, multipurpose, long-life products, a novel technique involving an immersion dry hydrothermal process app...

Journal: :International journal of nanomedicine 2016
Alexander S Pozdnyakov Artem I Emel'yanov Nadezhda P Kuznetsova Tamara G Ermakova Tat'yana V Fadeeva Larisa M Sosedova Galina F Prozorova

New nontoxic hydrophilic nanocomposites containing metallic silver nanoparticles (AgNPs) in a polymer matrix were synthesized by the chemical reduction of silver ions in an aqueous medium. A new nontoxic water soluble copolymer of 1-vinyl-1,2,4-triazole and N-vinylpyrrolidone synthesized by free radical-initiated polymerization was used as a stabilizing agent. Transmission electron microscopy, ...

Silver-Polyaniline (Ag-PANI) nanocomposites were prepared by in-situ oxidative polymerization of aniline monomer in sodium bis(2-ethylhexyl) sulfosuccinate (AOT) solution as an emulsifier. The synthesis of Silver-Polyaniline nanocomposites was investigated as a function of several parameters such as aniline concentration, concentration of emulsifier (AOT), concentration of oxidation agent and c...

AgAl2O3 nanocomposite were synthesized by solution combustion Technique using ammonium carbonate as a new fuel under simultaneous combustion of alumina and silver particles condition. Samples prepared with different amount of silver, were characterized by XRD, BET, SEM and optical Absorption measurements. XRD analysis was used to determine the change in phase and size of the synthesized n...

Polypyrrole/silver (PPy/Ag)nanocomposite was synthesized by a chemical oxidative method. SEM and TEM analyses were performed for studying the morphology of the nanocomposite. It was shown that the obtained nanocomposite particles have a spherical structure with the high surface area to volume ratio that is the important factor in the biological application. The particle sizes of the P...

Journal: Journal of Nanoanalysis 2019
Hamid Reza Ghorbani, Shirin Fahimi

The present study was carried out to investigate the preparation of chitosan-Ag nanocomposite filmfor food packaging. Since chitosan is a suitable alternative to produce packaging films due to favorablefactors such as biodegradability and abundance in the world, therefore in this study, it was preparedchitosan-Ag nanocomposite with antibacterial properties for food packaging b...

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