title: Aqueous Antibacterial Enhancement Using Kapok Fibers Chemically Modified in 3-D Crosslinked Structure.
abstract: The surface of a kapok fiber was coated with Dopamine (DOPA) through a three-dimensional (3-D) polymerization. Such surface-modified kapok fiber was useful in deactivating microbial activity of microorganisms such as bacteria. The morphology of the surface-modified kapok fiber was analyzed with a field emission scanning electron microscope (FE-SEM). After a silver coating process along with DOPA functionalization, a strong antibacterial property was observed against Escherichia coli (E. coli), using a direct contact method. Almost 100% of bacterial cells were deactivated in 4 h, also showing a complete hindrance to a bacterial growth for 48 h. With the help of the images of FE-SEM and its analysis, the mechanism of an antibacterial assay was enlightened and reasonably estimated that silver ions from the poly-DOPA-coated kapok fiber with silver (KF-DOPA/Ag) led to alterations of cell morphology. This 3-D composite successfully interacted in vitro with functional groups in terms of bacterial deactivation.
authors.affiliation: Department of Environmental Science and Engineering, College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai, China.
authors.forename: Runkai
authors.initials: R
authors.lastname: Wang
authors.forename: Chul-Ho
authors.initials: CH
authors.lastname: Shin
authors.forename: Yungyu
authors.initials: Y
authors.lastname: Chang
authors.forename: Daeik
authors.initials: D
authors.lastname: Kim
authors.forename: Joon-Seok
authors.initials: JS
authors.lastname: Park
mesh_terms: D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D035164:Ceiba / Q000737:chemistry*; D004298:Dopamine / Q000737:chemistry*; D004926:Escherichia coli / Q000187:drug effects*; D012834:Silver / Q000737:chemistry*
chemical_list: D000900:Anti-Bacterial Agents; D012834:Silver; D004298:Dopamine