Effects of anthropogenic surfactants on the conversion of marine dissolved organic carbon and microgels.

Abstract:

:The possible impact of three types of anthropogenic surfactants on the ability of marine dissolved organic carbon (DOC) to form self-assembled microgels was evaluated. The behavior of existing native microgels was also examined in the presence of surfactants. These results reveal that the release of surfactants even at low concentrations into the aquatic environment could effectively hinder the self-assembly of DOC polymers. The extent of the size reduction had the following order: anionic, cationic, and non-ionic. Furthermore, charged surfactants can disrupt existing native microgels, converting large assemblies into smaller particles. One possible mechanisms is that surfactants are able to enhance the stability of DOC polymers and disrupt aggregates due to their surface charges and protein-denaturing activities. These findings suggest that the ecological system is altered by anthropogenic surfactants, and provide useful information for ecological assessments of different types of surfactants and raise warnings about surfactant applications.

journal_name

Mar Pollut Bull

authors

Shiu RF,Lee CL

doi

10.1016/j.marpolbul.2017.01.051

subject

Has Abstract

pub_date

2017-04-15 00:00:00

pages

156-160

issue

1-2

eissn

0025-326X

issn

1879-3363

pii

S0025-326X(17)30087-5

journal_volume

117

pub_type

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