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Journal of Hazardous Materials
Volume 419, 2021, 126516

Synthetically engineered microbial scavengers for enhanced bioremediation

Kha Mong Trana, Hyang-Mi Leea, Thi Duc Thaia, Junhao Shena, Seong-il Eyunb, Dokyun Naa

Department of Biomedical Engineering, Chung-Ang University, Seoul 06974, Republic of Korea.

Abstract

Microbial bioremediation has gained attention as a cheap, efficient, and sustainable technology to manage the increasing environmental pollution. Since microorganisms in nature are not evolved to degrade pollutants, there is an increasing demand for developing safer and more efficient pollutant-scavengers for enhanced bioremediation. In this review, we introduce the strategies and technologies developed in the field of synthetic biology and their applications to the construction of microbial scavengers with improved efficiency of biodegradation while minimizing the impact of genetically engineered microbial scavengers on ecosystems. In addition, we discuss recent achievements in the biodegradation of fastidious pollutants, greenhouse gases, and microplastics using engineered microbial scavengers. Using synthetic microbial scavengers and multidisciplinary technologies, toxic pollutants could be more easily eliminated, and the environment could be more efficiently recovered.

Keywords: Microbial scavengers, Synthetic biology, Biodegradation, Metabolic engineering, Toxic pollutants.

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