نتایج جستجو برای: agnps

تعداد نتایج: 1823  

2014
Dang Van Phu Le Anh Quoc Nguyen Ngoc Duy Nguyen Thi Kim Lan Bui Duy Du Le Quang Luan Nguyen Quoc Hien

Colloidal solutions of silver nanoparticles (AgNPs) were synthesized by gamma Co-60 irradiation using different stabilizers, namely polyvinyl pyrrolidone (PVP), polyvinyl alcohol (PVA), alginate, and sericin. The particle size measured from TEM images was 4.3, 6.1, 7.6, and 10.2 nm for AgNPs/PVP, AgNPs/PVA, AgNPs/alginate, and AgNPs/sericin, respectively. The influence of different stabilizers ...

2015
Mohammed A. Al-Omair

Electrospun polycaprolacyone/polymethacrylic acid graft copolymer nanofibers (PCL/MAA) containing silver nanoparticles (AgNPs) were synthesized for effective wound disinfection. Surface morphology, AgNPs content, water uptake of electrospun PCL/MAA graft copolymer nanofibers without and with AgNPs, and levels of AgNPs leaching from the nanofibers in water as well as antimicrobial efficacy were ...

2013
Sangiliyandi Gurunathan Jegadeesh Raman Sri Nurestri Abd Malek Priscilla A John Sabaratnam Vikineswary

BACKGROUND Silver nanoparticles (AgNPs) are an important class of nanomaterial for a wide range of industrial and biomedical applications. AgNPs have been used as antimicrobial and disinfectant agents due their detrimental effect on target cells. The aim of our study was to determine the cytotoxic effects of biologically synthesized AgNPs using hot aqueous extracts of the mycelia of Ganoderma n...

2017
Yanling Zheng Lijun Hou Min Liu Silvia E. Newell Guoyu Yin Chendi Yu Hongli Zhang Xiaofei Li Dengzhou Gao Juan Gao Rong Wang Cheng Liu

Silver nanoparticles (AgNPs) are the most common materials in nanotechnology-based consumer products globally. Because of the wide application of AgNPs, their potential environmental impact is currently a highly topical focus of concern. Nitrification is one of the processes in the nitrogen cycle most susceptible to AgNPs but the specific effects of AgNPs on nitrification in aquatic environment...

2017
J PREMKUMAR

Nanotechnology is useful in diagnostic techniques, drug delivery, sunscreens, antimicrobial bandage, and disinfectants. In the present investigate work synthesis of silver nanoparticles was prepared by biological method by reducing silver nitrate using the bacteria Bacillus species. The construction of nanoparticles was established by UV-visible spectroscopy with a maximum absorbance at 434nm, ...

2012
Jing-fu Liu

Silver nanoparticles (AgNPs) are well known for their excellent antibacterial ability and superior physical properties, and are widely used in a growing number of applications ranging from home disinfectants and medical devices to water purificants. However, with the accelerating production and introduction of AgNPs into commercial products, there is likelihood of release into the environment, ...

Journal: :Archives of pharmacal research 2013
Kwangsik Park George Tuttle Federico Sinche Stacey L Harper

The stability of citrate-capped silver nanoparticles (AgNPs) and the embryonic developmental toxicity were evaluated in the fish test water. Serious aggregation of AgNPs was observed in undiluted fish water (DM-100) in which high concentration of ionic salts exist. However, AgNPs were found to be stable for 7 days in DM-10, prepared by diluting the original fish water (DM-100) with deionized wa...

Journal: :Antimicrobial agents and chemotherapy 2013
Divya Prakash Gnanadhas Midhun Ben Thomas Rony Thomas Ashok M Raichur Dipshikha Chakravortty

The emergence of multidrug-resistant bacteria is a global threat for human society. There exist recorded data that silver was used as an antimicrobial agent by the ancient Greeks and Romans during the 8th century. Silver nanoparticles (AgNPs) are of potential interest because of their effective antibacterial and antiviral activities, with minimal cytotoxic effects on the cells. However, very fe...

2017
Malahat Ahmadi Masood Adibhesami

The microorganisms have been usually noted as the major cause of delayed wound healing. Pseudomonas aeruginosa is the most common pathogen causing these infections. Silver nanoparticles (AgNPs) show ample antibacterial activities. In present study, the effect of AgNPs alone and in combination with tetracycline investigated on inoculated wounds with Pseudomonas aeruginosa in mice. Twenty mice an...

2016
Tikam Chand Dakal Anu Kumar Rita S. Majumdar Vinod Yadav

Multidrug resistance of the pathogenic microorganisms to the antimicrobial drugs has become a major impediment toward successful diagnosis and management of infectious diseases. Recent advancements in nanotechnology-based medicines have opened new horizons for combating multidrug resistance in microorganisms. In particular, the use of silver nanoparticles (AgNPs) as a potent antibacterial agent...

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