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NIR‐Mediated Antibacterial Clay Nanocomposites: Exfoliation of Montmorillonite Nanolayers by IR825 Intercalation
Author(s) -
Park Soo Jeong,
Kang Eun Bi,
Sharker Shazid Md.,
Lee Gibaek,
In Insik,
Park Sung Young
Publication year - 2016
Publication title -
macromolecular materials and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 96
eISSN - 1439-2054
pISSN - 1438-7492
DOI - 10.1002/mame.201500272
Subject(s) - montmorillonite , nanocomposite , exfoliation joint , materials science , intercalation (chemistry) , photothermal therapy , thermal stability , chemical engineering , suspension (topology) , nanotechnology , composite material , graphene , chemistry , organic chemistry , engineering , mathematics , homotopy , pure mathematics
We report the exfoliation of montmorillonite (MMT) by IR825, a near infrared (NIR) active hyper‐thermal antibacterial nanocomposite, constructed using polyvinylpyrrolidione‐ q ‐catechol with sultones (C‐PVPS) through ionic exchange reactions. Studying this nanocomposite revealed a sharp increase in photothermal heat as a function of irradiation time, and the layered MMT structure is promising for optimizing the required thermal stability to increase the photothermal heat. Only 5 min of exposing an in vitro suspension of bacteria to NIR‐triggered local nanocomposite resulted in rapid killing of bacteria. Due to their considerable potential for photothermal applications, thermo‐stable MMT‐based materials have attracted tremendous attention for designing nanocomposites of pathogenic bacteria.