Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/80948
Title: Impact of solution chemistry on the properties and bactericidal activity of silver nanoparticles decorated on superabsorbent cryogels
Authors: Loo, Siew-Leng
Krantz, William B.
Hu, Xiao
Lim, Teik-Thye
Fane, Anthony Gordon
Keywords: Environmental matrix
E. coli
Silver
Composite
Disinfection
Dissolution
Hydrogel
Issue Date: 2015
Source: Loo, S.-L., Krantz, W. B., Hu, X., Fane, A. G., & Lim, T.-T. (2016). Impact of solution chemistry on the properties and bactericidal activity of silver nanoparticles decorated on superabsorbent cryogels. Journal of Colloid and Interface Science, 461, 104-113.
Series/Report no.: Journal of Colloid and Interface Science
Abstract: This study investigated the effects of dissolved organic matter (DOM) and various electrolytes commonly found in environmental aqueous matrices on the physicochemical properties and bactericidal efficacy of silver nanoparticles (AgNPs), which are immobilized on cryogels (or PSA/AgNP cryogel). The AgNPs in the PSA/AgNP cryogel that were exposed to different media underwent morphological transformation in terms of particle size and structure. In addition, the presence of DOM and electrolytes increased the release of dissolved Ag. The biological uptake of Ag species (determined as the total Ag in exposed cells) increased in the presence of DOM, but decreased in the presence of electrolytes. The presence of electrolytes did not result in any significant reduction in the bactericidal activity. Although an initial increase of the DOM to 2.5 mg-C L−1 attenuated the bactericidal efficacy of the immobilized AgNPs, an increase in the DOM concentration beyond 5 mg-C L−1 enhanced the bactericidal efficacy. This study found that the bactericidal activity of the immobilized AgNPs is less sensitive to the solution chemistry relative to the free AgNPs. This suggests that immobilizing the AgNPs in a supporting material is a good strategy to preserve their efficacy for disinfection in various aqueous matrices.
URI: https://hdl.handle.net/10356/80948
http://hdl.handle.net/10220/38968
ISSN: 0021-9797
DOI: 10.1016/j.jcis.2015.09.007
Rights: © 2015 Elsevier Inc. This is the author created version of a work that has been peer reviewed and accepted for publication by Journal of Colloid and Interface Science, Elsevier Inc. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1016/j.jcis.2015.09.007].
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:CEE Journal Articles
MSE Journal Articles
NEWRI Journal Articles

Files in This Item:
File Description SizeFormat 
JCIS-15-2007(R1)- clean manuscript.pdfMain article1.92 MBAdobe PDFThumbnail
View/Open

SCOPUSTM   
Citations 20

6
Updated on Jul 7, 2022

PublonsTM
Citations 20

6
Updated on Jul 2, 2022

Page view(s) 50

449
Updated on Aug 15, 2022

Download(s) 20

165
Updated on Aug 15, 2022

Google ScholarTM

Check

Altmetric


Plumx

Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.