A Photo Switchable Signal Chain for Superoxide Detection using a CDSE/ZNS- Quantum Dot Modified Gold Electrode
Title:
A Photo Switchable Signal Chain for Superoxide Detection using a CDSE/ZNS- Quantum Dot Modified Gold Electrode
Authors:
Abstract:
By means of CdSe/ZnS-quantum dots immobilised on gold electrodes a photo-switchable arrangement for the direct protein electrochemistry of cytochrome c was developed. Under illumination a photocurrent was detected as a result of an electron transfer from the electrode to the photo-excited quantum dots and further to the redox protein in solution. This current was found to be dependent on the concentration of cytochrome c. Thus light can serve as a switch for the protein detection in solution ("On"- situation), whereas in the dark electron transfer is strongly inhibited ("Off"- situation). The results provide the basis for the detection of protein-analyte interactions and for the development of a light-addressable protein array.
Year:
2007
Publication type:
Conference contribution
Conference:
14th International Conference on Solid-State Sensors, Actuators, and Microsystems
Book title:
TRANSDUCERS 2007 : International Solid-State Sensors, Actuators and Microsystems Conference, 2007
ISBN:
1-4244-0841-5
Pages:
2295-2297
Language:
English
Document status:
Published
PubListerURL:
https://publister.bib.th-wildau.de/publister/public/publication/1602
Stoll, C., Zanella, M., Parak, W., & Lisdat, F. (2007). A Photo Switchable Signal Chain for Superoxide Detection using a CDSE/ZNS- Quantum Dot Modified Gold Electrode TRANSDUCERS 2007 : International Solid-State Sensors, Actuators and Microsystems Conference, 2007 (pp. 2295-2297). : IEEE.
@inproceedings{1602,
author = {Stoll, Christian and Zanella, Marco and Parak, Wolfgang J. and Lisdat, Fred},
title = {A Photo Switchable Signal Chain for Superoxide Detection using a CDSE/ZNS- Quantum Dot Modified Gold Electrode},
year = {2007},
pages = {2295-2297},
publisher = {IEEE},
isbn = {1-4244-0841-5},
booktitle = {TRANSDUCERS 2007 : International Solid-State Sensors, Actuators and Microsystems Conference, 2007},
doi = {10.1109/SENSOR.2007.4300628},
}