Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 138, Issue 8, Pages 2823-2828Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jacs.5b13533
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Funding
- CSIR [CSC0122, CSC0102]
- DST [SB/S1/IC-32/2013]
- DST Indo-Singapore Project [INT/SIN/P-05]
- DST Nanomission Project [SR/NM/NS-1179/2012G]
- CSIR Nehru Science PDF
- UGC
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Covalent organic nanosheets (CONs) have emerged as functional two-dimensional materials for versatile applications. Although pi-pi stacking between layers, hydrolytic instability, possible restacking prevents their exfoliation on to few thin layered CONs from crystalline porous polymers. We anticipated rational designing of a structure by intrinsic ionic linker could be the solution to produce self-exfoliated CONs without external stimuli. In an attempt to address this issue, we have synthesized three self-exfoliated guanidinium halide based ionic covalent organic nanosheets (iCONs) with antimicrobial property. Self-exfoliation phenomenon has been supported by molecular dynamics (MD) simulation as well. Intrinsic ionic guanidinium unit plays the pivotal role for both self-exfoliation and antibacterial property against both Gram-positive and Gram-negative bacteria. Using such iCONs, we have devised a Mixed matrix membrane which could be useful for antimicrobial coatings with plausible medical benefits.
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