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High concentration silver nanoparticles stably dispersed in water without chemical reagent

Paper ID Volume ID Publish Year Pages File Format Full-Text
26579 43964 2011 4 PDF Available
Title
High concentration silver nanoparticles stably dispersed in water without chemical reagent
Abstract

New laser ablation method to drastically improve nanoparticle yield was developed. In this method, laser was irradiated from the bottom of a piriform flask to the precipitated powder target. Nanoparticle yield became much higher than that obtained by the conventional method. Silver nanoparticle colloid with high concentration was prepared in a single step and the colloid has been stable for more than 6 months without any chemical reagents. The shape of nanoparticles was estimated to be four-sided pyramid or octahedral by scanning transmission electron microscopy (STEM) observation. In addition, STEM image showed narrow size distribution. A typical bacteria, Bacillus coli, became extinct within 24 h in silver nanocolloid with the concentration of 20 mg/L.

► New laser ablation method to prepare nanoparticles dispersed in liquid was established. ► High nanoparticle yield was achieved by using new laser irradiation method. ► The shape of nanoparticles was estimated to be four-sided pyramid or octahedral. ► A typical bacteria, Bacillus coli, became extinct within 24 h in silver nanocolloid with the concentration of 20 mg/L.

Keywords
Laser ablation in liquid; Nanoparticle yield; Bactericidal activity
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High concentration silver nanoparticles stably dispersed in water without chemical reagent
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 226, Issue 1, 15 December 2011, Pages 64–67
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
Online Support
Any Questions? feel free to contact us