نتایج جستجو برای: nanosilver particles

تعداد نتایج: 156935  

Journal: :ACS applied materials & interfaces 2012
Ulyana Shimanovich Ilana Perelshtein Artur Cavaco-Paulo Aharon Gedanken

The current paper reports on the relase properties of conductive fabrics coated with proteinaceous microspheres containing a dye. The release of the dye was achieved by passing an electric current through the fabric. The conductivity of the polyester fibers resulted from nanosilver (Ag NPs) coated on the surface of these fibers. Both types of coatings (nanosilver coating and the coating of the ...

Journal: :journal of crop protection 2015
valiollah mahdizadeh naser safaie fatemeh khelghatibana

in vitro antifungal activity of silver nanoparticles, at concentrations of 6, 8, 10, 12, 14 and 16 ppm, was studied on five phytopathogenic fungi, and a biocontrol agent. then effect of silver nanoparticle at 6 ppm (optimum concentration) was evaluated on macrophomina phaseolina in greenhouse. for in vitro experiment, the fungal isolates were grown on potato dextrose agar medium amended with si...

2015
Alireza Mozaffari Dehshiri Maryam Hamzelou Moghaddam Farzaneh Naghibi Soheila Honary Mahmoud Mosaddegh

Tumor growth is characterized by uncontrolled cell division. For centuries, silver kushta powder, composed of nano and submicro silver particles, has been used in traditional Iranian and Pakistani medicine for the treatment of melanoma and breast cancer. We have found that these nanocomposite particles are similar to silver nanoparticles (AgNps) in size and shape and that there are so differenc...

Journal: :Nanotechnology 2011
A Babapour B Yang S Bahang W Cao

Silver nanocomposite coatings are prepared by the sol-gel method for the prevention of biofilm formation on the surface of medical implanted devices. High-temperature processing of such coatings can lead to diffusion of nanosilver and reduce the amount of available silver particles for long-term effects. Using a low-temperature sol-gel method, we have successfully prepared silane-based matrices...

Silver salts and nanosilver (NS) are the common antimicrobial used in the treatment of chronic wounds, so they are important to assess their dermal toxicity. Therefore, in this study, the possible dermal toxicity of NS particles and silver nitrate (AgNO3), was tested by determining the serum level of transforming growth factor-β1(TGF-β1) and study on of mouse skin tissue. In this stu...

2014
Qingye Liu Guiqing Wen Xinghui Zhang Aihui Liang Zhiliang Jiang

The blue triangle nanosilver (BAgNP) sol was prepared by the two reducers of NaBH4 and H2O2. Using BAgNP as the precursor, a small spherical nanosilver (AgNP) sol in yellow was synthesized by addition of suitable amounts of X (-) (X = Cl, Br, and I). The oxidization process of BAgNP to AgNP was studied in detail by resonance Rayleigh scattering (RRS), surface-enhanced Raman scattering (SERS), l...

2014
Guiqing Wen Yanghe Luo Aihui Liang Zhiliang Jiang

The stable yellow nanosilver (AgNP) and blue nanosilver (AgNPB) sols were prepared by the NaBH4 procedure. The new nanocatalytic reaction of AgNP-NaCl-H2O2 was investigated by surface plasmon resonance (SPR) absorption, resonance Rayleigh scattering (RRS), surface-enhanced Raman scattering (SERS) and scanning electron microscope (SEM) techniques. The autocatalytic oxidization of Ag on AgNP surf...

Journal: :journal of dentistry, tehran university of medical sciences 0
mohammad ali mozayeni associate professor, iranian center for endodontic research, department of endodontics, dental school, shahid beheshti university of medical sciences, tehran, iran. ali hadian dentist, private practice, tehran, iran. pedram bakhshaei postgraduate student, oral and maxillofacial surgery department, dental school, shahid beheshti university of medical sciences, tehran, iran. omid dianat associate professor, iranian center for endodontic research, department of endodontics, dental school, shahid beheshti university of medical sciences, tehran, iran.

residual microorganisms in the root canal system (rcs) after endodontic therapy such as candida albicans are a major cause of endodontic failure. calcium hydroxide (ch) and chlorhexidine (chx) have suitable antimicrobial activity against bacteria and can be used as intracanal medicaments. nanosilver has also shown antimicrobial activity against microorganisms. this study aimed to compare the an...

Journal: :international journal of molecular and clinical microbiology 0
nooshin naghsh department of biology, falavarjan branch, islamic azad university, isfahan, iran.سازمان اصلی تایید شده: دانشگاه آزاد اسلامی فلاورجان (islamic azad university of felavarjan) mozhgan ghiasian department of microbiology, falavarjan branch, islamic azad university, isfahan, iran.سازمان اصلی تایید شده: دانشگاه آزاد اسلامی فلاورجان (islamic azad university of felavarjan) safoura soleymani department of chemistry, faculty of science, ferdowsi university of mashhad, mashhad, iran.سازمان اصلی تایید شده: دانشگاه فردوسی (ferdowsi university)سازمان های دیگر: دانشگاه آزاد فلاورجان samira torkan department of biochemistry, falavarjan branch, islamic azad university, isfahan, iran.سازمان اصلی تایید شده: دانشگاه آزاد اسلامی فلاورجان (islamic azad university of felavarjan)

nanotechnology is a new and specific method for therapy of diseases. nanosilver particle is one of the functional fields of nanotechnology. it has been shown that these nanoparticles have antibacterial and antifungal properties. different studied have been shown that nanoparticles may have important role in medicine. for example, it has been shown to have inhibitory effects on the treatment of ...

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