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Organosilicate compound filler to increase the mechanical strength of superhydrophilic layer-by-layer assembled film

Authors
 Sungwon Jung  ;  Sohyeon Park  ;  Woojin Choi  ;  Jiwoong Heo  ;  Jaesung Kwon  ;  Sunghwan Choi  ;  Jinkee Hong 
Citation
 JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, Vol.84 : 332-339, 2020 
Journal Title
 JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY 
ISSN
 1226-086X 
Issue Date
2020
Abstract
Technologies that can overcome the poor mechanical properties of the coatings with bacterial anti-adhesion effect based on super-wetting properties are still challenging. In this study, we developed a durable superhydrophilic nanocomposite coatings composed of polysaccharide matrix and organosilicate (OS) compound filler. In brief, carboxymethylcellulose (CMC) and chitosan (CS)-based multilayer films were fabricated via Layer-by-layer (LbL) assembly then crosslinking for the films was performed to improve inner stability and induce superhydrophilicity. As second step, we synthesized a biocompatible and robust organosilicate compound via sol-gel reaction and incorporate it as reinforcing filler into the superhydrophilic films. Consequently, durable hybrid superhydrophilic nanocomposites were coated on the substrate, and various chemical analysis and performance evaluations of the coatings were performed. The mechanical properties of the composite coatings were significantly improved due to the OS acting as a reinforcing filler in the multilayer films. Furthermore, the coatings exhibited excellent biocompatibility and transparency and exerted antibacterial effect based on superhydrophilic property. This study presents a practical strategy to solve the poor durability, the limitation of super-wetting coatings widely applied in various fields.
Full Text
https://www.sciencedirect.com/science/article/pii/S1226086X20300241
DOI
10.1016/j.jiec.2020.01.015
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Dental Biomaterials and Bioengineering (치과생체재료공학교실) > 1. Journal Papers
2. College of Dentistry (치과대학) > Dept. of Orthodontics (교정과학교실) > 1. Journal Papers
Yonsei Authors
Kwon, Jae-Sung(권재성) ORCID logo https://orcid.org/0000-0001-9803-7730
Choi, Sung Hwan(최성환) ORCID logo https://orcid.org/0000-0002-1150-0268
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/175517
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