Comparing the enhanced sensing interfaces of differently oriented carbon nanotubes onto silicon for bio-chip applications

Carbon nanotubes improve the sensitivity of electrochemical biochips. An optimized integration of the nano/bio/CMOS interface is required to realize accurate and low-cost sensors for applications in personalized medicine. The nanotubes orientation on the chip is a key parameter. The role of the side...

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Published in2011 4th IEEE International Workshop on Advances in Sensors and Interfaces pp. 90 - 93
Main Authors Taurino, I., Carrara, S., Giorcelli, M., Tagliaferro, A., De Micheli, G.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.06.2011
Subjects
Sensors
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ISBN9781457706233
1457706237
DOI10.1109/IWASI.2011.6004694

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Summary:Carbon nanotubes improve the sensitivity of electrochemical biochips. An optimized integration of the nano/bio/CMOS interface is required to realize accurate and low-cost sensors for applications in personalized medicine. The nanotubes orientation on the chip is a key parameter. The role of the sidewalls and the tips surface on the electro-activity of the nano-sensor is still subject of debate in the literature. In this paper, a comparison between vertical densely-packed and randomly-oriented carbon nanotubes directly growth on silicon wafer is proposed in order to identify the best nano-system for biosensing purposes. The comparison is done by using contact-angle measurements, energy dispersive X-ray analysis and electrochemical voltammetry.
ISBN:9781457706233
1457706237
DOI:10.1109/IWASI.2011.6004694