NDLI: Bacterial uptake of silver nanoparticles in the presence of humic acid and AgNO$

Content Provider	Springer Nature Link
Author	Bae, Eunjoo Park, Hee Jin Yoon, Jaeyong Kim, Younghun Choi, Kyunghee Yi, Jongheop
Copyright Year	2010
Abstract	Silver nanoparticles (AgNPs), potent antibiotic materials, have been found to cause cell-membrane damage and produce reactive oxygen species (ROS). The resultant structural change in the cell-membrane could cause an increase in cell permeability of silver ions and AgNPs. To address this issue further, in-vivo and in-vitro cytotoxicity testing of as-made nanomaterials was conducted to quantify and assess their nanotoxicity. Considering the behavior of AgNPs in the environment, toxicity may be reflected by differences in their physicochemical properties (size, agglomeration rate, adsorption properties on humic acid) dependency and toxicity depression. Therefore, we investigated the effect of the cellular uptake of AgNPs with the kinetics of agglomeration and adsorption. The amount of agglomerated and adsorbed AgNPs with sizes of <14 nm was higher than that for AgNPs with sizes of 90 and 140 nm. For 90 and 140 nm sized AgNPs, adsorption was more significant than agglomeration. It is noteworthy that the normal concept that smaller sized AgNPs are taken up more readily may be in error in cases of interactions of abiotic factors.
Starting Page	267
Ending Page	271
Page Count	5
File Format	PDF
ISSN	02561115
Journal	Korean Journal of Chemical Engineering
Volume Number	28
Issue Number	1
e-ISSN	19757220
Language	English
Publisher	Springer US
Publisher Date	2010-11-17
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Silver Nanoparticle Agglomeration Adsorption Humic Acid Salinity Escherichia coli Materials Science Industrial Chemistry/Chemical Engineering Biotechnology Catalysis
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering

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