A smart enzyme reactor based on a photo-responsive hydrogel for purifying water from phenol contaminated sources

Abstract

In this paper, a smart enzyme reactor (SER) was synthesized using immobilized tyrosinase (Tyr) in a photo-responsive hydrogel via a polydopamine-assisted self-assembly strategy for purifying water from phenol contaminated water. PDA was not only utilized as a binder between Tyr and the hydrogel to prevent the leakage of Tyr with relatively high enzymatic activity from the SER, but also acted as a light absorber to trigger the hydrophilic/hydrophobic switching of PNIPAm hydrogels to realize the efficient reclamation of clean water. Experimental results showed that the SER maintained a well-defined porous structure with excellent elasticity, which was beneficial for water transport and enzyme accessibility. And the stability and reusability of Tyr in the degradation of phenol were all improved. Furthermore, clean water could be reclaimed completely and facilely by light irradiation after enzymatic remediation in the SER.

Graphical abstract: A smart enzyme reactor based on a photo-responsive hydrogel for purifying water from phenol contaminated sources

Supplementary files

Article information

Article type
Paper
Submitted
27 Oct 2021
Accepted
08 Dec 2021
First published
09 Dec 2021

Soft Matter, 2022, Advance Article

A smart enzyme reactor based on a photo-responsive hydrogel for purifying water from phenol contaminated sources

Y. Gu, S. Luo, Y. Wang, X. Zhu and S. Yang, Soft Matter, 2022, Advance Article , DOI: 10.1039/D1SM01536B

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