Carbon-nanotube-resonator-based biosensors

Hyun Seok Lee; Hee Jo Lee; Hyang Hee Choi; Jong Gwan Yook; Kyung Hwa Yoo

doi:10.1002/smll.200800382

Carbon-nanotube-resonator-based biosensors

Hyun Seok Lee, Hee Jo Lee, Hyang Hee Choi, Jong Gwan Yook, Kyung Hwa Yoo

Research output: Contribution to journal › Article › peer-review

18 Citations (Scopus)

Abstract

A study was conducted to demonstrate carbon nanotube (CNT) resonator-based biosensors, using the biotin-streptavidin system. The CNT resonators were fabricated by connecting the interdigital capacitor to the CNT in parallel. It was found that these CNT resonators exhibited a clear resonance at approximately 10-13 GHz, depending on the device. The resonator frequency was lowered by approximately 0.7-1.3 GHz and the Q factor was enhanced, after the streptavidin was bound to the biotinylated CNT. The resonance frequency shift and the enhanced Q factor were explained by the increase in C_CNT and R _f, according to the simulation results. The resonance frequency measurements and their sensitivity was not reduced for devices with metallic and semiconducting CNTs, as the CNT resonator-based biosensors can detect biomolecules by measuring the capacitance change through the resonance frequency measurements.

Original language	English
Pages (from-to)	1723-1727
Number of pages	5
Journal	Small
Volume	4
Issue number	10
DOIs	https://doi.org/10.1002/smll.200800382
Publication status	Published - 2008 Oct

All Science Journal Classification (ASJC) codes

Biotechnology
Biomaterials
Chemistry(all)
Materials Science(all)

Access to Document

10.1002/smll.200800382

Cite this

@article{307b369de5d847c4bac9511599f6ad45,

title = "Carbon-nanotube-resonator-based biosensors",

abstract = "A study was conducted to demonstrate carbon nanotube (CNT) resonator-based biosensors, using the biotin-streptavidin system. The CNT resonators were fabricated by connecting the interdigital capacitor to the CNT in parallel. It was found that these CNT resonators exhibited a clear resonance at approximately 10-13 GHz, depending on the device. The resonator frequency was lowered by approximately 0.7-1.3 GHz and the Q factor was enhanced, after the streptavidin was bound to the biotinylated CNT. The resonance frequency shift and the enhanced Q factor were explained by the increase in CCNT and R f, according to the simulation results. The resonance frequency measurements and their sensitivity was not reduced for devices with metallic and semiconducting CNTs, as the CNT resonator-based biosensors can detect biomolecules by measuring the capacitance change through the resonance frequency measurements.",

author = "Lee, {Hyun Seok} and Lee, {Hee Jo} and Choi, {Hyang Hee} and Yook, {Jong Gwan} and Yoo, {Kyung Hwa}",

year = "2008",

month = oct,

doi = "10.1002/smll.200800382",

language = "English",

volume = "4",

pages = "1723--1727",

journal = "Small",

issn = "1613-6810",

publisher = "Wiley-VCH Verlag",

number = "10",

}

TY - JOUR

T1 - Carbon-nanotube-resonator-based biosensors

AU - Lee, Hyun Seok

AU - Lee, Hee Jo

AU - Choi, Hyang Hee

AU - Yook, Jong Gwan

AU - Yoo, Kyung Hwa

PY - 2008/10

Y1 - 2008/10

N2 - A study was conducted to demonstrate carbon nanotube (CNT) resonator-based biosensors, using the biotin-streptavidin system. The CNT resonators were fabricated by connecting the interdigital capacitor to the CNT in parallel. It was found that these CNT resonators exhibited a clear resonance at approximately 10-13 GHz, depending on the device. The resonator frequency was lowered by approximately 0.7-1.3 GHz and the Q factor was enhanced, after the streptavidin was bound to the biotinylated CNT. The resonance frequency shift and the enhanced Q factor were explained by the increase in CCNT and R f, according to the simulation results. The resonance frequency measurements and their sensitivity was not reduced for devices with metallic and semiconducting CNTs, as the CNT resonator-based biosensors can detect biomolecules by measuring the capacitance change through the resonance frequency measurements.

AB - A study was conducted to demonstrate carbon nanotube (CNT) resonator-based biosensors, using the biotin-streptavidin system. The CNT resonators were fabricated by connecting the interdigital capacitor to the CNT in parallel. It was found that these CNT resonators exhibited a clear resonance at approximately 10-13 GHz, depending on the device. The resonator frequency was lowered by approximately 0.7-1.3 GHz and the Q factor was enhanced, after the streptavidin was bound to the biotinylated CNT. The resonance frequency shift and the enhanced Q factor were explained by the increase in CCNT and R f, according to the simulation results. The resonance frequency measurements and their sensitivity was not reduced for devices with metallic and semiconducting CNTs, as the CNT resonator-based biosensors can detect biomolecules by measuring the capacitance change through the resonance frequency measurements.

UR - http://www.scopus.com/inward/record.url?scp=55349118831&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=55349118831&partnerID=8YFLogxK

U2 - 10.1002/smll.200800382

DO - 10.1002/smll.200800382

M3 - Article

C2 - 18819134

AN - SCOPUS:55349118831

SN - 1613-6810

VL - 4

SP - 1723

EP - 1727

JO - Small

JF - Small

IS - 10

ER -

Carbon-nanotube-resonator-based biosensors

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this