A charge pumping technique to identify biomolecular charge polarity using a nanogap embedded biotransistor

Sungho Kim; Jee Yeon Kim; Jae Hyuk Ahn; Tae Jung Park; Sang Yup Lee; Yang Kyu Choi

doi:10.1063/1.3473819

A charge pumping technique to identify biomolecular charge polarity using a nanogap embedded biotransistor

Sungho Kim, Jee Yeon Kim, Jae Hyuk Ahn, Tae Jung Park, Sang Yup Lee, Yang Kyu Choi

Semiconductor Engineering

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

13 Scopus citations

Abstract

Charge pumping technique is investigated to identify biomolecular charge polarity using a nanogap-embedded biotransistor. Biomolecules immobilized in a nanogap provide additional charges in the gate dielectric. They give rise to a change in the charge pumping current, as detected by applying a designed pulse waveform. The measured results are analyzed with the aid of numerical simulations. The proposed charge pumping technique represents an insightful method of investigating the electrical properties of biomolecules beyond biosensing.

Original language	English
Article number	073702
Journal	Applied Physics Letters
Volume	97
Issue number	7
DOIs	https://doi.org/10.1063/1.3473819
State	Published - 16 Aug 2010

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abstract = "Charge pumping technique is investigated to identify biomolecular charge polarity using a nanogap-embedded biotransistor. Biomolecules immobilized in a nanogap provide additional charges in the gate dielectric. They give rise to a change in the charge pumping current, as detected by applying a designed pulse waveform. The measured results are analyzed with the aid of numerical simulations. The proposed charge pumping technique represents an insightful method of investigating the electrical properties of biomolecules beyond biosensing.",

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AU - Lee, Sang Yup

AU - Choi, Yang Kyu

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AB - Charge pumping technique is investigated to identify biomolecular charge polarity using a nanogap-embedded biotransistor. Biomolecules immobilized in a nanogap provide additional charges in the gate dielectric. They give rise to a change in the charge pumping current, as detected by applying a designed pulse waveform. The measured results are analyzed with the aid of numerical simulations. The proposed charge pumping technique represents an insightful method of investigating the electrical properties of biomolecules beyond biosensing.

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A charge pumping technique to identify biomolecular charge polarity using a nanogap embedded biotransistor

Abstract

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