Piezo Electric Sensor for Endocrine-Disrupting Chemicals Using Receptor-co-factor Interaction
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- MURATA Masaharu
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University
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- GOUDA Chifumi
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University
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- YANO Kentaro
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University
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- KUROKI Shinichiro
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University
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- SUZUTANI Tatsuo
- Department of Microbiology, School of Medicine, Fukushima Medical University
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- KATAYAMA Yoshiki
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University
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Abstract
In vitro screening assays are useful techniques for the determination of receptor-mediated activities in environmental samples. In order to define whether environmental chemicals act as an agonist or antagonist to the human estrogen receptor (hER), we have constructed a biosensor based on ligand-inducible interactions between hER and relative proteins on a quartz crystal microbalance (QCM). The his-tagged proteins, which were expressed in E. coli by recombinant DNA technology, were immobilized on an Au-electrode with Ni(II)-mediated chemisorption using the histidine tag and thiol-modified iminodiacetic acid. The resonance-frequency change of the protein-modified electrode was caused by association or dissociation with the hER relative proteins on the surface in the presence of estrogen. These results suggest that this sensor is applicable as a large-scale screening tool for estrogenic compounds.
Journal
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- Analytical Sciences
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Analytical Sciences 19 (10), 1355-1357, 2003
The Japan Society for Analytical Chemistry
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Details 詳細情報について
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- CRID
- 1390001204255493760
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- NII Article ID
- 130004440643
- 10011768225
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- NII Book ID
- AA10500785
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- COI
- 1:CAS:528:DC%2BD3sXoslentb4%3D
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- ISSN
- 13482246
- 09106340
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- NDL BIB ID
- 6721947
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- PubMed
- 14596397
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- PubMed
- CiNii Articles
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- Abstract License Flag
- Disallowed