Article ; Online: Assessing fresh water acute toxicity with Surface-Enhanced Raman Scattering (SERS).
2023 Volume 267, Page(s) 125163
Abstract: It's well known that the toxicity of chemicals in the environment depends not only their concentrations, but more importantly, their bio-availability. Thus, the acute toxicity test of environmental water samples is of great importance in water quality ... ...
| Abstract | It's well known that the toxicity of chemicals in the environment depends not only their concentrations, but more importantly, their bio-availability. Thus, the acute toxicity test of environmental water samples is of great importance in water quality evaluation. In this work, water acute toxicity was determined via SERS approach for the first time based on the reaction between Escherichia coli (E. coli) and p-benzoquinone (BQ). The E. coli was used as the subject of toxicity assay. Under normal conditions, the BQ molecules can be transformed into Hydroquinone (HQ) by the E. coli bacteria; subsequently, the BQ will continue to react with the resulting HQ to form Quinone hydroquinone (QHQ). This process could be impaired in the presence of many toxic chemicals. Bromide modified Ag NPs was then introduced for the highly sensitive SERS detection of the product (HQ and QHQ). Several key factors that may affect water acute toxicity evaluation have been explored, which include the initial BQ and E. coli concentration, the incubation time with BQ, and the sodium chloride concentration. Later, the established system was applied for the toxicity evaluation of Cu |
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| MeSH term(s) | Escherichia coli ; Hydroquinones/toxicity ; Spectrum Analysis, Raman/methods ; Metal Nanoparticles/toxicity ; Metal Nanoparticles/chemistry |
| Chemical Substances | hydroquinone (XV74C1N1AE) ; Hydroquinones |
| Language | English |
| Publishing date | 2023-09-08 |
| Publishing country | Netherlands |
| Document type | Journal Article |
| ZDB-ID | 1500969-5 |
| ISSN | 1873-3573 ; 0039-9140 |
| ISSN (online) | 1873-3573 |
| ISSN | 0039-9140 |
| DOI | 10.1016/j.talanta.2023.125163 |
| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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