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Lookup NU author(s): Dr Manjit GrewalORCiD
This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
We propose a surface modification of poorly dispersive polytetrafluoroethylene (PTFE) particles via bioinspired polydopamine–polyethyleneimine (PDA–PEI) which conferred PTFE particles a uniform dispersion in aqueous medium. With increasing dopamine concentration in the reaction solution, dispersity of PTFE particles improved and the surface charges of particles changed from negative to positive due to an increase of surface coverage of PDA–PEI layers. Simplicity of the method here outlines an attractive route for surface modification of inert surfaces useful for large-scale applications.
Author(s): Grewal MS, Abe H, Matsuo Y, Yabu H
Publication type: Article
Publication status: Published
Journal: Royal Society Open Science
Year: 2021
Volume: 8
Issue: 8
Print publication date: 01/08/2021
Online publication date: 04/08/2021
Acceptance date: 10/06/2020
Date deposited: 16/01/2026
ISSN (electronic): 2054-5703
Publisher: The Royal Society Publishing
URL: https://doi.org/10.1098/rsos.210582
DOI: 10.1098/rsos.210582
Data Access Statement: In the manuscript, we present new data and the instructions how to reproduce the experiments are fully explained in the main text of the manuscript and electronic supplementary material. Electronic supplementary material is related to the photographs of PTFE@PDA–PEI particles before and after dispersion in influence of different constituents, supporting data of DLS and thermogravimetry measurements, SEM images of PTFE@PDA–PEI particles with DA concentration: 0.1, 0.2, 0.4 and 0.6 g l-1, and graphical abstract. The data are provided in electronic supplementary material.
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