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Critical Reviews in Environmental Science and Technology Volume 49, 2019 - Issue 19
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Microalgal extracellular polymeric substances and their interactions with metal(loid)s: A review

Sadiq NaveedJiangsu Provincial Key Laboratory of Marine Biology College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, China; View further author information
,
Chonghua LiJiangsu Provincial Key Laboratory of Marine Biology College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, China; View further author information
,
Xinda LuDepartment of Biology, University of Waterloo, ON, Canada; View further author information
,
Shuangshuang ChenJiangsu Provincial Key Laboratory of Marine Biology College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, China; View further author information
,
Bin YinJiangsu Provincial Key Laboratory of Marine Biology College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, China; View further author information
,
Chunhua ZhangDemonstration Laboratory of Element and Life Science Research Laboratory Centre of Life Science College of Life Science, Nanjing Agricultural University, Nanjing, ChinaView further author information
&
Ying GeJiangsu Provincial Key Laboratory of Marine Biology College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, China; Correspondence[email protected]
ORCID Iconhttp://orcid.org/0000-0002-4760-8203View further author information
ORCID Icon show all
Pages 1769-1802 | Published online: 01 Mar 2019
 
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Abstract

Extracellular polymeric substances (EPS) are biopolymers secreted by microorganisms such as bacteria, fungi, and algae that may play a significant role in the speciation, toxicity, and biogeochemical cycles of metal(loid)s. In this review, we described the current understanding of the composition and physicochemical properties of microalgal EPS, summarized their roles in the sequestration and transformation of metal(loid)s, and examined the factors that could influence EPS–metal(loid) interactions. Applications of microalgal EPS to the remediation of metal(loid) polluted environments were demonstrated. Future research topics, in particular the mechanisms of EPS and metal(loid) interactions, were also discussed.

Additional information

Funding

Financial support from National Natural Science Foundation of China (31770548), National Key Research and Development Program of China (2016YFD0800306, 2017YFD0800305) and Jiangsu Provincial Undergraduate Entrepreneur Training Program (201710307005T) are deeply appreciated.

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