Abstract
AbstractA biosensor for the detection of triazine‐ and phenylurea‐type herbicides was constructed using isolated Photosystem II (PS II) complexes as a biosensing element. PSII isolated from the thermophilic cyanobacterium Synechococcus elongatus was immobilized on the surface of a screen‐printed sensor composed of a graphite working electrode and Ag/AgCl reference electrode deposited on a polymeric substrate. The biosensor was mounted in a flow microcell with illumination. The principle of the detection was based on the fact that herbicides selectively block PSII electron transport activity in a concentration‐dependent manner. Changes of the activity were registered amperometrically as the rate of photoreduction of an artificial electron acceptor. The setup resulted in a reusable herbicide biosensor with a good stability (half‐life of 24 h) and limit of detection of approximately 10−9 M for diuron, atrazine and simazine. © 2002 Wiley Periodicals, Inc. Biotechnol Bioeng 78: 110–116, 2002; DOI 10.1002/bit.10190
Bibliography
KoblÞek, M., Malý, J., MasojÃdek, J., Komenda, J., KuÄera, T., Giardi, M. T., Mattoo, A. K., & Pilloton, R. (2002). A biosensor for the detection of triazine and phenylurea herbicides designed using Photosystem II coupled to a screenâprinted electrode. Biotechnology and Bioengineering, 78(1), 110â116. Portico.
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Dates
Type | When |
---|---|
Created | 23 years ago (Aug. 25, 2002, 12:51 a.m.) |
Deposited | 1 year, 10 months ago (Oct. 16, 2023, 9:54 p.m.) |
Indexed | 2 months, 1 week ago (June 26, 2025, 4:48 a.m.) |
Issued | 23 years, 6 months ago (Feb. 6, 2002) |
Published | 23 years, 6 months ago (Feb. 6, 2002) |
Published Online | 23 years, 6 months ago (Feb. 6, 2002) |
Published Print | 23 years, 4 months ago (April 5, 2002) |
Funders
2
NATO Linkage Grant
Grant Agency of the Czech Republic
10.13039/501100001824
Grantová Agentura České RepublikyRegion: Europe
pri (Trusts, charities, foundations (both public and private))
Labels
9
- Grant Agency of the Czech Republic
- Czech Science Foundation
- Grantová agentura ČR
- Grantové agentury
- GrantovaAgentura
- GAČR
- GACR
- GA ČR
- GA CR
Awards
4
- BE (95)1745
- 522/00/1274
- EUContractNo.QLK3-CT-2001-01629
- HTECH.LG950980 EV5V/CT(94)0358
@article{Kobl_ek_2002, title={A biosensor for the detection of triazine and phenylurea herbicides designed using Photosystem II coupled to a screen‐printed electrode}, volume={78}, ISSN={1097-0290}, url={http://dx.doi.org/10.1002/bit.10190}, DOI={10.1002/bit.10190}, number={1}, journal={Biotechnology and Bioengineering}, publisher={Wiley}, author={Koblížek, Michal and Malý, Jan and Masojídek, Jiří and Komenda, Josef and Kučera, Tomáš and Giardi, Maria T. and Mattoo, Autar K. and Pilloton, Roberto}, year={2002}, month=feb, pages={110–116} }