Next Article in Journal
Production and Characterization of Non-Isocyanate Polyurethane/SiO2 Films Through a Sol-Gel Process for Thermal Insulation Applications
Next Article in Special Issue
Human Adipose-Derived Stem Cell Secreted Extracellular Matrix Incorporated into Electrospun Poly(Lactic-co-Glycolic Acid) Nanofibrous Dressing for Enhancing Wound Healing
Previous Article in Journal
Complex Aerogels Generated from Nano-Polysaccharides and Its Derivatives for Oil–Water Separation
Previous Article in Special Issue
Fluorinated Montmorillonite Composite Resin as a Dental Pit and Fissure Sealant
Open AccessArticle

Vapor-Deposited Reactive Coating with Chemically and Topographically Erasable Properties

1
School of Dentistry, Graduate Institute of Clinical Dentistry, National Taiwan University and National Taiwan University Hospital, Taipei 10048, Taiwan
2
Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan
3
Institute of Materials Science and Engineering, National Taipei University of Technology, Taipei 10608, Taiwan
4
Center for Human Tissues and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
5
Department of Chemistry and Biotechnology, Swinburne University of Technology, Victoria 3122, Australia
6
Advanced Research Center for Green Materials Science and Technology, National Taiwan University, Taipei 10617, Taiwan
*
Authors to whom correspondence should be addressed.
Y.-C. Chiang and C.-P. Ho contributed equally to this work.
Polymers 2019, 11(10), 1595; https://doi.org/10.3390/polym11101595
Received: 8 August 2019 / Revised: 21 September 2019 / Accepted: 26 September 2019 / Published: 29 September 2019
(This article belongs to the Special Issue Polymeric Colloidal Materials for Biomedical Applications)
An erasable coating was prepared to modify material surfaces with accessibilities, including specific conjugation, elimination of the conjugated chemistry/function, and the reactivation of a second new chemistry/function. The coating was realized based on a vapor-deposited functional poly-p-xylylene coating composed of an integrated 3-((3-methylamido)-disulfanyl)propanoic acid functional group, resulting in not only chemical reactivity, but also a disulfide interchange mechanism. Mechanically, the coating was robust in terms of the thermal stability and adhesive property on a variety of substrate materials. Chemically, the anchoring site of carboxylic acid was accessible for specific conjugation, and a disulfide bridge moiety was used to disengage already installed functions/properties. In addition, the homogeneous nature of the vapor-phased coating technique is known for its morphology/thickness and distribution of the functional moiety, which allowed precision to address the installation or erasure of functions and properties. Characterization of the precisely confined hydrophilic/hydrophobic wetting property and the alternating reversibility of this wetting property on the same surface was achieved. View Full-Text
Keywords: poly-p-xylylene; coating; surface modification; erasable property; biointerface poly-p-xylylene; coating; surface modification; erasable property; biointerface
Show Figures

Graphical abstract

MDPI and ACS Style

Chiang, Y.-C.; Ho, C.-P.; Wang, Y.-L.; Chen, P.-C.; Wang, P.-Y.; Chen, H.-Y. Vapor-Deposited Reactive Coating with Chemically and Topographically Erasable Properties. Polymers 2019, 11, 1595.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop