PERFORM Publications

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Title		Authors	PubMed ID
1	Insights into the Toxicity of Triclosan to Green Microalga Chlorococcum sp. Using Synchrotron-Based Fourier Transform Infrared Spectromicroscopy: Biophysiological Analyses and Roles of Environmental Factors.	Xin X, Huang G, An C, Huang C, Weger H, Zhao S, Zhou Y, Rosendahl S	29377676 ENCS
2	Interactive Toxicity of Triclosan and Nano-TiO2 to Green Alga Eremosphaera viridis in Lake Erie: A New Perspective Based on Fourier Transform Infrared Spectromicroscopy and Synchrotron-Based X-ray Fluorescence Imaging.	Xin X, Huang G, An C, Feng R	31322895 ENCS
3	Elemental, isotopic, and spectroscopic assessment of chemical fractionation of dissolved organic matter sampled with a portable reverse osmosis system.	Ouellet A, Catana D, Plouhinec JB, Lucotte M, Gélinas Y	18504986 CHEMBIOCHEM
4	Evaluating the Impact of Neighborhood Characteristics on Differences between Residential and Mobility-Based Exposures to Outdoor Air Pollution.	Fallah-Shorshani M, Hatzopoulou M, Ross NA, Patterson Z, Weichenthal S	30119601 ENCS
5	Differences in Riverine and Pond Water Dissolved Organic Matter Composition and Sources in Canadian High Arctic Watersheds Affected by Active Layer Detachments.	Wang JJ, Lafrenière MJ, Lamoureux SF, Simpson AJ, Gélinas Y, Simpson MJ	29301070 CHEMBIOCHEM
6	Insights into Long-Term Toxicity of Triclosan to Freshwater Green Algae in Lake Erie.	Xin X, Huang G, An C, Raina-Fulton R, Weger H	30673261 CHEMBIOCHEM

Title:	Interactive Toxicity of Triclosan and Nano-TiO2 to Green Alga Eremosphaera viridis in Lake Erie: A New Perspective Based on Fourier Transform Infrared Spectromicroscopy and Synchrotron-Based X-ray Fluorescence Imaging.
Authors:	Xin X, Huang G, An C, Feng R
Link:	https://www.ncbi.nlm.nih.gov/pubmed/31322895?dopt=Abstract
DOI:	10.1021/acs.est.9b03117
Publication:	Environmental science & technology
Keywords:
PMID:	31322895	Category:	Environ Sci Technol	Date Added:	2019-08-07
Dept Affiliation:	ENCS 1 Institute for Energy, Environment and Sustainable Communities , University of Regina , Regina S4S 0A2 , Canada. 2 Department of Building, Civil and Environmental Engineering , Concordia University , Montreal H3G 1M8 , Canada. 3 Canadian Light Source , Saskatoon S7N 2 V3 , Saskatchewan , Canada.

Description:

Interactive Toxicity of Triclosan and Nano-TiO2 to Green Alga Eremosphaera viridis in Lake Erie: A New Perspective Based on Fourier Transform Infrared Spectromicroscopy and Synchrotron-Based X-ray Fluorescence Imaging.

Environ Sci Technol. 2019 Jul 31;:

Authors: Xin X, Huang G, An C, Feng R

Abstract

This study explored the toxicity of triclosan in the presence of TiO2 P25 to the green alga Eremosphaera viridis in Lake Erie. Multiple physicochemical end points were conducted to perform a comprehensive analysis of the toxic effects of individual and combined pollutants. Fourier transform infrared spectromicroscopy and synchrotron-based X-ray fluorescence imaging were first documented to be applied to explore the distribution variation of macromolecules and microelements in single algal cells in interactive toxicity studies. The results were different based on different triclosan concentrations and measurement end points. Comparing with individual pollutants, the toxicity intensified in lipids, proteins, and oxidative stress at 1000 and 4000 µg/L triclosan in the presence of P25. There were increases in dry weight, chlorophyll content, lipids, and catalase content when cells were exposed to P25 and 15.625 µg/L triclosan. The toxicity alleviated when P25 interacted with 62.5 and 250 µg/L triclosan compared with triclosan-only exposure. The reasons could be attributed to the combination of adsorption, biodegradation, and photocatalysis of triclosan by algae and P25, triclosan dispersion by increased biomass, triclosan adherency on algal exudates, and triclosan adsorption site reduction on algae surface owing to P25's taking over. This work provides new insights into the interactive toxicity of nanoparticles and personal care products to freshwater photosynthetic organisms. The findings can help with risk evaluation for predicting outcomes of exposure to mixtures and with prioritizing further studies on joint toxicity.

PMID: 31322895 [PubMed - as supplied by publisher]

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