Ag@AgI, core@shell structure in agarose matrix as hybrid: synthesis, characterization, and antimicrobial activity

Langmuir : the ACS Journal of Surfaces and Colloids
Somnath GhoshH N Vasan

Abstract

A novel in situ core@shell structure consisting of nanoparticles of Ag (Ag Nps) and AgI in agarose matrix (Ag@AgI/agarose) has been synthesized as a hybrid, in order to have an efficient antibacterial agent for repetitive usage with no toxicity. The synthesized core@shell structure is very well characterized by XRD, UV-visible, photoluminescence, and TEM. A detailed antibacterial studies including repetitive cycles are carried out on Gram-negative Escherichia coli (E. coli) and Gram-positive Staphylococcus aureus (S. aureus) bacteria in saline water, both in dark and on exposure to visible light. The hybrid could be recycled for the antibacterial activity and is nontoxic toward human cervical cancer cells (HeLa cells). The water insoluble Ag@AgI in agarose matrix forms a good coating on quartz, having good mechanical strength. EPR and TEM studies are carried out on the Ag@AgI/agarose and the bacteria, respectively, to elucidate a possible mechanism for killing of the bacteria.

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Citations

Jun 9, 2014·Materials Science & Engineering. C, Materials for Biological Applications·Zhihui NiYanbao Zhao
May 9, 2013·Langmuir : the ACS Journal of Surfaces and Colloids·Lucio BonaccorsiDomenico Lombardo
Aug 3, 2013·Langmuir : the ACS Journal of Surfaces and Colloids·Mainak GangulyTarasankar Pal
Apr 19, 2016·Colloids and Surfaces. B, Biointerfaces·Weihua DengXuxu Wang
Jul 6, 2013·Materials Science & Engineering. C, Materials for Biological Applications·Yuanyuan LiHuajuan Luo
Jan 15, 2014·Materials Science & Engineering. C, Materials for Biological Applications·Binjie LiYanbao Zhao
Jan 4, 2017·Journal of Materials Science. Materials in Medicine·Shilei WangZhong Lu
Dec 16, 2020·ACS Biomaterials Science & Engineering·Marian G RofealSanaa Omar
Aug 28, 2021·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Shafqat QamerSyafinaz Amin-Nordin

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