Conductometric Microbiosensors for Environmental Monitoring
This review presents the principles of conductometric measurements in ionic media and the equivalent electrical circuits of different designs for conductometric measurements. These types of measurements were first applied for monitoring biocatalytic reactions. The use of conductometric microtransduc...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2008-04-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1424-8220/8/4/2569/ |
| _version_ | 1817996871140900864 |
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| author | Sergei V. Dzyadevych Nicole Jaffrezic-Renault |
| author_facet | Sergei V. Dzyadevych Nicole Jaffrezic-Renault |
| author_sort | Sergei V. Dzyadevych |
| collection | DOAJ |
| description | This review presents the principles of conductometric measurements in ionic media and the equivalent electrical circuits of different designs for conductometric measurements. These types of measurements were first applied for monitoring biocatalytic reactions. The use of conductometric microtransducers is then presented and detailed in the case of pollutant detection for environmental monitoring. Conductometric biosensors have advantages over other types of transducers: they can be produced through inexpensive thinfilm standard technology, no reference electrode is needed and differential mode measurements allow cancellation of a lot of interferences. The specifications obtained for the detection of different pesticides, herbicides and heavy metal ions, based on enzyme inhibition, are presented as well as those obtained for the detection of formaldehyde, 4- chlorophenol, nitrate and proteins as markers of dissolved organic carbon based on enzymatic microbiosensors. |
| first_indexed | 2024-04-14T02:29:53Z |
| format | Article |
| id | doaj.art-568de4ab358b438aa7e925f69cf525fd |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-14T02:29:53Z |
| publishDate | 2008-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-568de4ab358b438aa7e925f69cf525fd2022-12-22T02:17:44ZengMDPI AGSensors1424-82202008-04-018425692588Conductometric Microbiosensors for Environmental MonitoringSergei V. DzyadevychNicole Jaffrezic-RenaultThis review presents the principles of conductometric measurements in ionic media and the equivalent electrical circuits of different designs for conductometric measurements. These types of measurements were first applied for monitoring biocatalytic reactions. The use of conductometric microtransducers is then presented and detailed in the case of pollutant detection for environmental monitoring. Conductometric biosensors have advantages over other types of transducers: they can be produced through inexpensive thinfilm standard technology, no reference electrode is needed and differential mode measurements allow cancellation of a lot of interferences. The specifications obtained for the detection of different pesticides, herbicides and heavy metal ions, based on enzyme inhibition, are presented as well as those obtained for the detection of formaldehyde, 4- chlorophenol, nitrate and proteins as markers of dissolved organic carbon based on enzymatic microbiosensors.http://www.mdpi.com/1424-8220/8/4/2569/Interdigitated microelectrodesconductometric measurementsenzymatic microsensorswhole-cell microsensorspesticidesherbicidesTOCnitrateheavy metalstoxicity assessment. |
| spellingShingle | Sergei V. Dzyadevych Nicole Jaffrezic-Renault Conductometric Microbiosensors for Environmental Monitoring Sensors Interdigitated microelectrodes conductometric measurements enzymatic microsensors whole-cell microsensors pesticides herbicides TOC nitrate heavy metals toxicity assessment. |
| title | Conductometric Microbiosensors for Environmental Monitoring |
| title_full | Conductometric Microbiosensors for Environmental Monitoring |
| title_fullStr | Conductometric Microbiosensors for Environmental Monitoring |
| title_full_unstemmed | Conductometric Microbiosensors for Environmental Monitoring |
| title_short | Conductometric Microbiosensors for Environmental Monitoring |
| title_sort | conductometric microbiosensors for environmental monitoring |
| topic | Interdigitated microelectrodes conductometric measurements enzymatic microsensors whole-cell microsensors pesticides herbicides TOC nitrate heavy metals toxicity assessment. |
| url | http://www.mdpi.com/1424-8220/8/4/2569/ |
| work_keys_str_mv | AT sergeivdzyadevych conductometricmicrobiosensorsforenvironmentalmonitoring AT nicolejaffrezicrenault conductometricmicrobiosensorsforenvironmentalmonitoring |