Oxidative Polymerization of Dopamine: A High-Definition Multifunctional Coatings for Electrospun Nanofibers - An Overview

Abstract

The invention that catecholamines undergo oxidative polymerization under alkaline conditions and form adhesive nanocoatings on wide variety of substrates has ushered their potential utility in engineering and biomedical applications. The oxidative polymerization of catecholamines can be triggered by light, chemical and physical methods, thus representing one of the widely explored surface coating methods. The overall objectives of this chapter are to compile the various methods of accomplishing surface coatings and compare the structural diversity of catecholamines. The progress achieved so far on polydopamine (pDA) coatings on electrospun polymers will be discussed. Finally, we will summarize the research efforts on catecholamine coatings for biomedical applications as well as their potential as a high definition coating method.

FAU zeolite membranes for dewatering of amine‐based post‐combustion CO2 capture solutions

“…The catechol group peaks appeared in brown areas on FAU/PDA‐16 and FAU/PDA‐24, indicating that the PDA layer remains on the substrate, while the white areas showed similar spectra as other samples without catechol group peaks. Since the membrane thickness is 2.8–4.8 μm, it is speculated that longer PDA deposition times resulted in a thicker PDA layer on the substrate surface, which can be detected within the detection limit of Raman spectrum 42,43 . The membrane synthesis process consumed certain thickness of the grafted PDA layer, thus forming a different interface between membranes and substrates, which may have affected the membrane dewatering performance.…”

Recent Advances in a Polydopamine-Mediated Antimicrobial Adhesion System

“…Polydopamine has been observed to possess redox-dependent properties, which make this material to perform as an antioxidant as well as a pro-oxidant. It can accept or donate electrons repeatedly to exhibit beneficial radical-scavenging properties as well as to generate ROS, which account for its antimicrobial properties ( Liu and Huang, 2016 ; Lakshminarayanan et al, 2018 ; Liu et al, 2019 ). Its chemistry involves two electron transfer between quinone and hydroquinone structures.…”

Poly-dopamine, poly-levodopa, and poly-norepinephrine coatings: Comparison of physico-chemical and biological properties with focus on the application for blood-contacting devices

“…biosensors [ 11 ]. Some researchers tried to make some changes by adjusting the pH value, changing the dopamine concentration, replacing the buffer system, etc., to achieve smoother pDA coatings but with little success [ 12 ]. Others chose analog molecules of DA as monomers.…”