Temperature dependent transport in nanotube bioconjugates

Author

Jing, X. ; Singh, K.V. ; Wang, X. ; Ozkan, M. ; Ozkan, C.S.

Author_Institution

Dept. of Electr. Eng., Univ. of California, Riverside, CA, USA

fYear

2008

fDate

20-23 Oct. 2008

Firstpage

553

Lastpage

555

Abstract

Carbon nanotube (CNT) based bioconjugates are among the candidates for molecular level electronics. In this work, we have studied transport mechanism of single walled carbon nanotube (SWNT) - peptide nucleic acid (PNA) bioconjugates. Electrical conductivity of the bioconjugates was studied at temperatures ranging from 70 K to 350 K. Negative differential resistance (NDR) behavior was observed at almost all temperatures and conductivity was found to increase with increasing temperatures. NDR behavior can be attributed to alignment and misalignment of energy bands of SWNT and PNA under different voltages.

Keywords

biomolecular electronics; carbon nanotubes; electrical conductivity; nanotube devices; thermal analysis; CNT; SWNT-peptide nucleic acid bioconjugates; electrical conductivity; molecular level electronics; nanotube bioconjugates; negative differential resistance; single walled carbon nanotube; temperature 70 K to 350 K; temperature dependent transport; Amino acids; Carbon nanotubes; Conductivity; Electric resistance; Electric variables measurement; Immune system; Molecular electronics; Oxidation; Presence network agents; Temperature dependence;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid-State and Integrated-Circuit Technology, 2008. ICSICT 2008. 9th International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-2185-5

Electronic_ISBN

978-1-4244-2186-2

Type

conf

DOI

10.1109/ICSICT.2008.4734601

Filename

4734601