title: Biocidal efficacy, biofilm-controlling function, and controlled release effect of chloromelamine-based bioresponsive fibrous materials.
abstract: In this study, 2-amino-4-chloro-6-hydroxy-s-triazine (ACHT) was synthesized through controlled hydrolysis of 2-amino-4,6-dichloro-s-triazine (ADCT). A simple pad-dry-cure approach was employed to immobilize ACHT onto cellulosic fibrous materials. After treatment with diluted chlorine bleach, the covalently bound ACHT moieties were transformed into chloromelamines. The structures of the samples were fully characterized with NMR, UV/VIS, DSC, TG, iodometric titration and elemental analyses. The chloromelamine-based fibrous materials provided potent, durable, and rechargeable biocidal functions against bacteria (including multi-drug resistant species), yeasts, viruses, and bacterial spores. SEM studies demonstrated that the new fibrous materials could effectively prevent the formation of biofilms, and controlled release investigations in vitro suggested that the biocidal activities were bioresponsive. Biocidal mechanisms of the chloromelamine-based fibrous materials were further discussed.
authors.affiliation: Department of Human Ecology, The University of Texas at Austin, Austin, TX 78712, USA.
authors.forename: Zhaobin
authors.initials: Z
authors.lastname: Chen
authors.forename: Jie
authors.initials: J
authors.lastname: Luo
authors.forename: Yuyu
authors.initials: Y
authors.lastname: Sun
mesh_terms: D000042:Absorption; D001672:Biocompatible Materials / Q000737:chemistry*; D003692:Delayed-Action Preparations / Q000737:chemistry*; D004202:Disinfectants / Q000008:administration & dosage* / Q000737:chemistry*; D008422:Materials Testing; D008567:Membranes, Artificial; D011134:Polysaccharides / Q000737:chemistry*; D014227:Triazines / Q000008:administration & dosage* / Q000737:chemistry*
chemical_list: D001672:Biocompatible Materials; D003692:Delayed-Action Preparations; D004202:Disinfectants; D008567:Membranes, Artificial; D011134:Polysaccharides; D014227:Triazines; C007916:hemicellulose