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Title: New insights into transparent exopolymer particles (TEP) formation from precursor materials at various Na+/Ca2+ ratios
Authors: Meng, Shujuan
Liu, Yu
Keywords: Precursor Materials
DRNTU::Engineering::Civil engineering
Transparent Exopolymer Particles
Issue Date: 2016
Source: Meng, S., & Liu, Y. (2016). New insights into transparent exopolymer particles (TEP) formation from precursor materials at various Na+/Ca2+ ratios. Scientific Reports, 6, 19747-. doi:10.1038/srep19747
Series/Report no.: Scientific Reports
Abstract: Transparent exopolymer particles (TEP) are planktonic, organic microgels which play significant roles in cycling of carbon and trace elements, aggregation of particles, feeding and accommodating microbes as well as development of biofilms. However, few studies are available on the mechanism of TEP formation in various water environments. Here we investigate the formation of TEP with alginate blocks as precursors at various Na+/Ca2+ ratios to simulate the situations in different aquatic environments (e.g. freshwater and seawater). We found that the formation of TEP from precursor materials studied was essentially determined by the Ca2+ concentration at a fixed sodium concentration, while Na+ at high Na+/Ca2+ ratio out-competed Ca2+ for the binding sites on the precursor molecules, leading to a significantly decreased trend of TEP formation. Our results indicate that a more abundant TEP could be expected in freshwater than in seawater, and we also discuss the engineering implications of the findings.
DOI: 10.1038/srep19747
Rights: © 2016 The Authors (Nature Publishing Group). This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit
Fulltext Permission: open
Fulltext Availability: With Fulltext
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