نتایج جستجو برای: nanosilver colloid

تعداد نتایج: 8300  

2014
Wei Fan Daming Wu Franklin R Tay Tengjiao Ma Yujie Wu Bing Fan

Mesoporous calcium-silicate nanoparticles (MCSNs) are advanced biomaterials for controlled drug delivery and mineralization induction. Nanosilver-incorporated MCSNs (Ag-MCSNs) were prepared in the present study using both the adsorption and template methods. Both versions of Ag-MCSNs showed characteristic morphology of mesoporous materials and exhibited sustained release of ions over time. In a...

2015
Baoli Shi

A nanosilver composite plant medium with a good antimicrobial capability was successfully prepared via a two-step method in this work. First, nanosilver particles were prepared in a silver nitrate (AgNO3) solution by using D-glucose as a reduction reagent at room temperature. The effect of AgNO3 concentration levels on the size of the nanosilver particles was investigated. The sedimentation act...

2014
BassaM MashaT

Nanosilver applications have been implicated in paint, plastic, textile and medical industries. Nanosilver particles absorb sweat and in turn avoid pungent smell of feet. The present study aims to determine the antibacterial activity of Ag-coated different sock fabrics and comparing their efficacy in reducing foot-borne resident bacteria. Synthesize of nanosilver particles was performed in vari...

2016
Saura C. Sahu

Extensive consumer exposure to food- and cosmetics-related consumer products containing nanosilver is of public safety concern. Therefore, there is a need for suitable in vitro models and sensitive predictive rapid screening methods to assess their toxicity. Toxicogenomic profile showing subtle changes in gene expressions following nanosilver exposure is a sensitive toxicological endpoint for t...

2011
Yazdan Shantiaee Farzin Maziar Omid Dianat Faranak Mahjour

INTRODUCTION Favorable apical seal of root filling materials is a crucial factor for a successful root canal treatment. The aim of this in vitro study was to compare bacterial and dye microleakage of two root canal filling materials including standard gutta-percha and nanosilver coated gutta-percha, and to evaluate the agreement between results of these two methods. MATERIALS AND METHODS Fift...

2014
R. Haghgoo H. Saderi M. Eskandari H. Haghshenas MB. Rezvani

STATEMENT OF THE PROBLEM Nanosilver particles have the potential to serve as a bactericidal agent because of the inherent antimicrobial influences of silver ion. The literature confirmed that specific micro-organisms, especially streptococci, have an important role as an etiological factor for caries. PURPOSE The aim of this study was to evaluate the antimicrobial effect of conventional and n...

2015
Dandan Chen Zhaopeng Yang

Nanosilver particles are used in various clinical settings because of their antibacterial properties. However, their safety evaluation when used for gynaecological disorders has not been established. Nanosilver particles were administrated in the vagina of New Zealand rabbits, and the pathological appearance of the surrounding tissue was examined by hematoxylin-eosin staining and transmission e...

2017
Mahsa Eskandarinezhad Naiemeh Shahveghar-Asl Reza Sharghi Sajjad Shirazi Sahar Shakouie Amin-Salem Milani Esrafil Balaei

BACKGROUND Various materials have been added to mineral trioxide aggregate to enhance its properties. This study was aimed to compare the sealing efficacy of MTA with and without nanosilver using bacterial leakage approach. MATERIAL AND METHODS Seventy canine teeth were prepared and obturated. Then, after apical resection, the root-end cavities were prepared by ultrasonic retrotips. Teeth wer...

Journal: :Acta of bioengineering and biomechanics 2014
Jerzy ŁSokołowski Małgorzata Iwona Szynkowska Joanna Kleczewska Zygmunt Kowalski Agnieszka Sobczak-Kupiec Aleksandra Pawlaczyk Krzysztof Sokołowski Monika Łukomska-Szymańska

Silver and gold have been used for centuries as antimicrobial agents. The aim of the study was to investigate diametral tensile strength, microhardness, ion release and light transmission of experimental resin composites. Flowable dental composite SDR (Dentsply, United Kingdom) was modified by nanogold, nanosilver and silica addition. The metal ion release, light transmission study, microhardne...

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