Aqueous Antibacterial Enhancement Using Kapok Fibers Chemically Modified in 3‐D Crosslinked Structure. (1st July 2016)

• Record Type: Journal Article
• Authors: Wang, Runkai; Shin, Chul‐Ho; Chang, Yungyu; Kim, Daeik; Park, Joon‐Seok
• Is Part Of: Water environment research. Volume 88:Number 7(2016)
• Page Start: 611
• Page End: 616
• Publication Date: 2016-07-01
• Subjects: kapok fiber -- dopamine -- silver -- 3‐D polymerization -- Escherichia coli; Water quality management -- Periodicals; Water -- Purification -- Periodicals; Water -- Pollution -- Periodicals; Water -- Pollution; Water -- Purification; Water quality management; Sewage; Water Pollution; Periodicals; Electronic journals; Periodicals; 628.16
• DOI: 10.2175/106143016X14609975746442
• Languages: English
• ISSNs: 1061-4303

Abstract

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.