Abstract
Reductive biodegradation by microorganisms has been widely explored for detoxifying recalcitrant contaminants; however, the biodegradation capacity of microbes is limited by the energy level of the released electrons. Here, we developed a method to self-assemble Shewanella oneidensis-CdS nanoparticle hybrids with significantly improved reductive biodegradation capacity and constructed a living material by encapsulating the hybrids in hydrogels. The material confines the nano-bacteria hybrids and protects them from environmental stress, thus improving their recyclability and long-term stability (degradation capacity unhindered after 4 weeks). The developed living materials exhibited efficient photocatalytic biodegradation of various organic dyes including azo and nitroso dyes. This study highlights the feasibility and benefits of constructing self-assembled nano-bacteria hybrids for bioremediation and sets the stage for the development of novel living materials from nano-bacteria hybrids.
Funder
Shanghai Sailing Program
National Natural Science Foundation of China
Innovative Research Team of High-Level Local Universities in Shanghai
Shanghai University Sailing Program
Subject
Virology,Microbiology (medical),Microbiology
Reference44 articles.
1. Microbial Degradation of Dyes: An Overview;Varjani;Bioresour. Technol.,2020
2. Microbial Degradation and Valorization of Plastic Wastes;Ru;Front. Microbiol.,2020
3. Contaminated Environments in the Subsurface and Bioremediation: Organic Contaminants;Holliger;FEMS Microbiol. Rev.,1997
4. Kamal, I.M., Abdeltawab, N.F., Ragab, Y.M., Farag, M.A., and Ramadan, M.A. (2022). Biodegradation, Decolorization, and Detoxification of Di-Azo Dye Direct Red 81 by Halotolerant, Alkali-Thermo-Tolerant Bacterial Mixed Cultures. Microorganisms, 10.
5. Characterization of Azo Reduction Activity in a Novel Ascomycete Yeast Strain;Ramalho;Appl. Environ. Microbiol.,2004
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献