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BIOMOSAIC Film: Artificial Biofilms with Catalytic and Self‐Sealing Properties
Author(s) -
Park Joseph P.,
Do Minjae,
Hong Sang Hyeon,
Ryu Jaewook,
Kang Dongyeop,
Rho Kyeongha,
Ahn Jung Hoon,
Lee Haeshin
Publication year - 2019
Publication title -
advanced materials interfaces
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.671
H-Index - 65
ISSN - 2196-7350
DOI - 10.1002/admi.201900379
Subject(s) - biofilm , materials science , pseudomonas fluorescens , chemical engineering , catalysis , nanotechnology , polymer , organic chemistry , bacteria , chemistry , biology , genetics , engineering , composite material
Abstract Biofilms are a self‐organized, self‐structured community of microorganisms that are enclosed in a self‐produced polymeric matrix. Due to the intrinsic complexity of biofilms, their artificial preparation has remained a challenge despite practical usefulness as reservoirs for biocatalysts. Herein, autonomously generated artificial biofilms termed BIOMOSAIC (BioInspired, Oxygen‐induced Microbial Organization through Self‐Assembly at the air/liquid Interface as a Catalyst) films are reported. Similar to bacterial homing, a large number of cells are spontaneously recruited and immobilized into the film, which is autonomously generated at air/liquid interfaces by simple mixing of phenolic polyamine and tyrosinase‐expressing Pseudomonas fluorescens . BIOMOSAIC films are self‐regenerated, portable, reusable, and freestanding. They are multifunctional depending on types of gene expressions from the cells, catalyzing various reactions such as l ‐DOPA production, dephosphorylation, and lipid hydrolysis. Furthermore, BIOMOSAIC film exhibits effective crude oil degradation properties, indicating that it can be a new self‐producing and self‐sustaining platform for bioremediation.