NDLI: A Novel Impedimetric Sensor Based on Cyanobacterial Extracellular Polymeric Substances for Microplastics Detection

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A Novel Impedimetric Sensor Based on Cyanobacterial Extracellular Polymeric Substances for Microplastics Detection

Content Provider	Hyper Articles en Ligne (HAL)
Author	Gongi, Wejdene Touzi, Hassen Sadly, Idris Ben Ouada, Hafedh Tamarin, Ollivier Ben Ouada, Hatem
Abstract	Cyanobacterial extracellular polymeric substances “EPS” have attracted intensive concern in biomedicine and food. Nevertheless, the use of those polymers as a sensor coating material has not yet been investigated mainly for microplastic detection. This study focuses on the application of EPS as a sensitive membrane deposited on a gold electrode and investigated with electrochemical impedance spectroscopy to detect four types of microplastics with a size range of 0.1 µm to 1 mm. The surface properties of this impedimetric sensor were investigated by Scanning electron microscopy, Fourier transforms infrared spectroscopy, and X-ray spectroscopy and, showed a high homogenous structure with the presence of several functional groups. The EPS-based sensor could detect the four tested microplastics with a low limit of detection of 10–11 M. It is the first report focusing on EPS extracted from cyanobacteria that could be a new quantification method for low concentrations of microplastics.
Related Links	https://hal.science/hal-04028056/file/IMS_JPE_2022_Gongi.pdf
ISSN	15662543
e-ISSN	15728900
DOI	10.1007/s10924-022-02555-6
PubMed reference number	36032357
Issue Number	11
PubMed Central reference number	PMC9392654
Volume Number	30
Journal	Journal of Polymers and the Environment
Language	English
Publisher	HAL CCSD Springer Verlag
Publisher Date	2022-08-21
Access Restriction	Open
Subject Keyword	Extracellular polymeric substances Electrochemical impedance spectroscopy Impedimetric biosensor Microplastics detection
Content Type	Text
Resource Type	Article
Subject	Materials Chemistry Environmental Engineering Polymers and Plastics

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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