Magnetic bead counter using a micro-Hall sensor for biological applications

Wonhyun Lee; Sungjung Joo; Sun Ung Kim; Kungwon Rhie; Jinki Hong; Kyung Ho Shin; Ki Hyun Kim

doi:10.1063/1.3122142

Magnetic bead counter using a micro-Hall sensor for biological applications

Wonhyun Lee, Sungjung Joo, Sun Ung Kim, Kungwon Rhie, Jinki Hong, Kyung Ho Shin, Ki Hyun Kim

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

30 Citations (Scopus)

Abstract

Micro-Hall sensors have been fabricated, and various numbers of micron-size magnetic beads have been placed within the sensor area. The Hall resistances measured at room temperature are found to be proportional to the number of the beads, and are in good agreement with the numerically simulated results presented in this study. Our sensors are designed to measure the number of beads between zero and full-scale signals for a given number range of interest. The effects of miniaturizing the beads and sensors to nanoscale are also discussed.

Original language	English
Article number	153903
Journal	Applied Physics Letters
Volume	94
Issue number	15
DOIs	https://doi.org/10.1063/1.3122142
Publication status	Published - 2009
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.3122142

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title = "Magnetic bead counter using a micro-Hall sensor for biological applications",

abstract = "Micro-Hall sensors have been fabricated, and various numbers of micron-size magnetic beads have been placed within the sensor area. The Hall resistances measured at room temperature are found to be proportional to the number of the beads, and are in good agreement with the numerically simulated results presented in this study. Our sensors are designed to measure the number of beads between zero and full-scale signals for a given number range of interest. The effects of miniaturizing the beads and sensors to nanoscale are also discussed.",

author = "Wonhyun Lee and Sungjung Joo and Kim, {Sun Ung} and Kungwon Rhie and Jinki Hong and Shin, {Kyung Ho} and Kim, {Ki Hyun}",

note = "Funding Information: This work was supported by KIST Vision 21 Program, a Korea Research Foundation grant funded by the Korean Government (MOEHRD) (Grant No. KRF-2008-331-D00235) and IT Technology Under Ministry of Knowledge Economy of Korea.",

year = "2009",

doi = "10.1063/1.3122142",

language = "English",

volume = "94",

journal = "Applied Physics Letters",

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T1 - Magnetic bead counter using a micro-Hall sensor for biological applications

AU - Lee, Wonhyun

AU - Joo, Sungjung

AU - Kim, Sun Ung

AU - Rhie, Kungwon

AU - Hong, Jinki

AU - Shin, Kyung Ho

AU - Kim, Ki Hyun

N1 - Funding Information: This work was supported by KIST Vision 21 Program, a Korea Research Foundation grant funded by the Korean Government (MOEHRD) (Grant No. KRF-2008-331-D00235) and IT Technology Under Ministry of Knowledge Economy of Korea.

PY - 2009

Y1 - 2009

N2 - Micro-Hall sensors have been fabricated, and various numbers of micron-size magnetic beads have been placed within the sensor area. The Hall resistances measured at room temperature are found to be proportional to the number of the beads, and are in good agreement with the numerically simulated results presented in this study. Our sensors are designed to measure the number of beads between zero and full-scale signals for a given number range of interest. The effects of miniaturizing the beads and sensors to nanoscale are also discussed.

AB - Micro-Hall sensors have been fabricated, and various numbers of micron-size magnetic beads have been placed within the sensor area. The Hall resistances measured at room temperature are found to be proportional to the number of the beads, and are in good agreement with the numerically simulated results presented in this study. Our sensors are designed to measure the number of beads between zero and full-scale signals for a given number range of interest. The effects of miniaturizing the beads and sensors to nanoscale are also discussed.

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U2 - 10.1063/1.3122142

DO - 10.1063/1.3122142

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VL - 94

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 15

M1 - 153903

ER -

Magnetic bead counter using a micro-Hall sensor for biological applications

Abstract

ASJC Scopus subject areas

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