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Nanostructure, dissolution and morphology characteristics of microcidal silver films deposited by magnetron sputtering ☆

Paper ID Volume ID Publish Year Pages File Format Full-Text
2238 105 2007 10 PDF Available
Title
Nanostructure, dissolution and morphology characteristics of microcidal silver films deposited by magnetron sputtering ☆
Abstract

Novel microcidal silver films for burn dressings have been produced by magnetron sputtering. The nanostructure and dissolution characteristics of these films exhibiting antimicrobial behavior were studied as a function of the process conditions, namely, gas composition, gas pressure and input power, using transmission electron microscopy (TEM), high-resolution scanning electron microscopy, X-ray photoelectron spectroscopy (XPS) and resistivity. TEM revealed that bioactive films were nanocrystalline, with a grain size of the order of 15 nm and the presence of twins. Surface morphology studies before and after dissolution suggested that bioactive films released silver at therapeutic levels in the form of nanoparticles or grains. Chemical species identification with XPS showed that the biologically active films were metallic in nature. The importance of oxygen in the sputtering environment, the resultant nanostructure and presence of twins are discussed to explain the unique antimicrobial properties of these silver films.

Keywords
Antimicrobial silver films; Nanostructures; Nanocrystalline; Twins; Aqueous dissolution
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Nanostructure, dissolution and morphology characteristics of microcidal silver films deposited by magnetron sputtering ☆
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Publisher
Database: Elsevier - ScienceDirect
Journal: Acta Biomaterialia - Volume 3, Issue 3, May 2007, Pages 341–350
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
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Any Questions? feel free to contact us