Abstract
We demonstrate in-situ measurement of the photooxidization process of alkanethiol self-assembled monolayers using a Dual-channel Quartz Crystal Microbalance (D-QCM) sensor that uses spherically contoured resonators to acoustically separate sensing channels for simultaneous compensation of environmental disturbances. Using a photolithographic method to make the D-QCM, the reference channel used in parallel with the sensing channel has almost the same resonant frequency and temperature coefficient of frequency. As a result, mass changes of 10-pg order accuracy were observed under strong ultraviolet radiation over 4 days. Using the D-QCM, we can success to measure photoconversion from thiolate to sulfonate during UV irradiation
| Original language | English |
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| Pages | 1330-1332 |
| Number of pages | 3 |
| Publication status | Published - 2006 |
| Event | 10th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2006 - Tokyo, Japan Duration: 2006 Nov 5 → 2006 Nov 9 |
Conference
| Conference | 10th International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS 2006 |
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| Country/Territory | Japan |
| City | Tokyo |
| Period | 06/11/5 → 06/11/9 |
Keywords
- Dual-channel
- Microfabrication
- Photooxidization
- QCM
- SAM