نتایج جستجو برای: silver nanoparticles

تعداد نتایج: 141266  

2010
Humberto H. Lara Nilda V. Ayala-Núñez Cristina Rodrı́guez Padilla

Infections caused by drug-resistant microorganisms result in significant increases in mortality, morbidity, and cost related to prolonged treatments. The antibacterial activity of silver nanoparticles against some drug-resistant bacteria has been established, but further investigation is needed to determine whether these particles could be an option for the treatment and prevention of drugresis...

2014
Deepak K. Rahi

In the recent past green synthesis has emerged as an important and eco friendly technology in the field of nanosciences for the synthesis of various metal nanoparticles of variable sizes and shapes. The present study focuses on the mycosynthesis (i.e., synthesis by fungi) of silver nanoparticles by an important species of Penicillium, an endophytic fungus isolated from the roots of Aloe vera pl...

Journal: :Jundishapur journal of microbiology 2016
Mojtaba Salouti Fatemeh Mirzaei Reza Shapouri Azam Ahangari

BACKGROUND Wound infection is a common problem in hospitals and is typically caused by the antibiotic-resistant Staphylococcus aureus, which is a major pathogen for skin and soft tissue infections worldwide. OBJECTIVES The aim of this study was to investigate the synergistic antibacterial effect of plant peptide MBP-1 and silver nanoparticles on infected wounds caused by S. aureus. MATERIAL...

2012
Sumaira Ashraf Nasrin Akhtar Muhammad Afzal Ghauri Muhammad Ibrahim Rajoka Zafar M Khalid Irshad Hussain

Polyhexamethylene biguanide (PHMB), a broad spectrum disinfectant against many pathogens, was used as a stabilizing ligand for the synthesis of fairly uniform silver nanoparticles. The particles formed were characterized using UV-visible spectroscopy, FTIR, dynamic light scattering, electrophoretic mobility, and TEM to measure their morphology and surface chemistry. PHMB-functionalized silver n...

2015
G. Hari Priyaa Kumudini Belur Satyan

Plant extracts are very cost effective and eco-friendly and thus can be used as an economic and efficient alternative for the large-scale synthesis of nanoparticles. We report on the use of ginger extract for the biosynthesis of silver nanoparticles. Bioactive silver nanoparticle synthesis was byreacting the ginger extract with aqueous silver nitrate solution at room temperature (27±2 C) and at...

2012
M. Bhanu Prakash Subhankar Paul

In the present study, silver nanoparticles were rapidly green synthesized from AgNO3 solution using leaf extract of Vinca Roseus at room temperature. The green synthesized Silver Nanoparticles were characterized by UV–Visible absorption spectroscopy and further by analytical techniques such as, DLS, X-ray diffraction (XRD) and SEM. X-ray diffraction and Scanning Electron Microscope analysis stu...

2015
A. MATEI C. P. CORNEA S. MATEI

The biosynthesis of silver nanoparticles (AgNPs) is a recent approach in nanotechnology with promising application in food industry, pharmacy and medicine. In the present study, the biosynthesis of silver nanoparticles from aqueous solution of AgNO3 was performed using the cell free supernatant of Lactobacillus plantarum strain LAB 58. The silver nanoparticles biosynthesis was identified by the...

2013
C. Mohandass A. S. Vijayaraj R. Rajasabapathy S. Satheeshbabu S. V. Rao C. Shiva I. De-Mello

Seaweed extracts of Sargassum cinereum was used as a reducing agent in the eco-friendly extracellular synthesis of silver nanoparticles from an aqueous solution of silver nitrate (AgNO3). High conversion of silver ions to silver nanoparticles was achieved with a reaction temperature of 100(°) and a seaweed extract concentration of 10% with a residential time of 3 h. Formation of silver nanopart...

Journal: :JPMA. The Journal of the Pakistan Medical Association 2016
Muhammad Hassan Muhammad Mohsin Waheed Muhammad Naeem Anjum

OBJECTIVE To quantify the radiation dose enhancement in a human tissue-equivalent polymer gel impregnated with silver nanoparticles. METHODS The case-control study was conducted at the Bahawalpur Institute of Nuclear Medicine and Oncology, Bahawalpur, Pakistan, in January 2014. Silver nanoparticles used in this study were prepared by wet chemical method. Polymer gel was prepared by known quan...

2016
Martha Alicia Laredo-Naranjo Roberto Carrillo-Gonzalez Myriam Angelica De La Garza-Ramos Marco Antonio Garza-Navarro Hilda H. H. Torre-Martinez Casiano Del Angel-Mosqueda Roberto Mercado-Hernandez Roberto Carrillo-Fuentevilla

Objective: To evaluate the antimicrobial properties and dental pulp stem cells (DPSCs) cytotoxicity of synthesized carboxymethyl cellulose-silver nanoparticles impregnated on titanium plates. Material and methods: The antibacterial effect of silver nanoparticles in a carboxymethyl cellulose matrix impregnated on titanium plates (Ti-AgNPs) in three concentrations: 16%, 50% and 100% was determine...

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