Abstract
Vertically aligned carbon nanofibers (VACNFs) have recently become an important tool for biosensor design. Carbon nanofibers (CNF) have excellent conductive and structural properties with many irregularities and defect sites in addition to exposed carboxyl groups throughout their surfaces. These properties allow a better immobilization matrix compared to carbon nanotubes and offer better resolution when compared with the FET-based biosensors. VACNFs can be deterministically grown on silicon substrates allowing optimization of the structures for various biosensor applications. Two VACNF electrode architectures have been employed in this study and a comparison of their performances has been made in terms of sensitivity, sensing limitations, dynamic range, and response time. The usage of VACNF platform as a glucose sensor has been verified in this study by selecting an optimum architecture based on the VACNF forest density.
Original language | English |
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Article number | 1450006 |
Journal | International Journal of High Speed Electronics and Systems |
Volume | 23 |
Issue number | 1-2 |
DOIs | |
State | Published - 2014 |
Funding
The authors like to thank Dr. Shahinur Rahman, Dr. M. S. Uddin, Md. Moniuzzaman for various chemicals and Dr. Ashraf B. Islam for helpful discussions. This research was conducted at the Center for Nanophase Materials Sciences, which is sponsored at the Oak Ridge National Laboratory by the Office of Basic Energy Sciences, U.S. Department of Energy.
Keywords
- Carbon nanofiber
- PECVD
- biosensor