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Title: Hormetic effect of ionic liquid 1-ethyl-3-methylimidazolium acetate on bacteria

Journal Article · · Chemosphere
 [1];  [2]
  1. Bhabha Atomic Research Center, Kalpakkam (India). Biofouling and Biofilm Processes Sect.
  2. Brookhaven National Laboratory (BNL), Upton, NY (United States). Environmental Sciences Dept.; POSTECH, Pohang (Korea, Rep. of). Div. of Advanced Nuclear Engineering

The biological effect of ionic liquids (ILs) is one of the highly debated topics as they are being contemplated for various industrial applications. 1-ethyl-2-methylimidazolium acetate ([EMIM][Ac]) showed remarkable hormesis on anaerobic Clostridium sp. and aerobic Psueudomonas putida. Bacterial growth was stimulated at up to 2.5 g L-1 and inhibited at > 2.5 g L-1 of ([EMIM][Ac]). The growth of Clostridium sp. and P. putida were higher by 0.4 and 4-fold respectively, in the presense of 0.5 g L-1 of ([EMIM][Ac]). Assessment of the effect of [EMIM][Ac] under different growth conditions showed that the hormesis of [EMIM][Ac] was mediated via regulation of medium pH. Hormetic effect of [EMIM][Ac] was evident only in medium with poor buffering capacity and in the presence of a fermentable substrate as the carbon source. The hormetic effect of [EMIM][Ac] on bacterial growth is most likely associated with the buffering capacity of acetate anion. These observations have implications in ILs toxicity studies and ecological risk assessment.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER)
Grant/Contract Number:
DE-SC00112704; SC00112704
OSTI ID:
1176995
Alternate ID(s):
OSTI ID: 1245325
Report Number(s):
BNL-107565-2015-JA; R&D Project: 02155/02158; YN0100000
Journal Information:
Chemosphere, Vol. 128; ISSN 0045-6535
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 18 works
Citation information provided by
Web of Science

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Cited By (5)

The weak magnetic field (WMF) enhances the stimulation of polymyxin B sulfate (POL) on Vibrio qinghaiensis sp.-Q67 journal February 2020
Not merely noxious? Time-dependent hormesis and differential toxic effects systematically induced by rare earth elements in Escherichia coli journal December 2019
Choline-Based Ionic Liquids as Media for the Growth of Saccharomyces cerevisiae journal July 2019
Scaling-Up Ionic Liquid-Based Technologies: How Much Do We Care About Their Toxicity? Prima Facie Information on 1-Ethyl-3-Methylimidazolium Acetate journal November 2017
Mechanistic insights into the effect of imidazolium ionic liquid on lipid production by Geotrichum fermentans journal December 2016

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