Novel multibit magnetic tagging techniques for high-throughput multiplexed chemical analysis

B. Hong; J. Llandro; T. J. Hayward; T. Mitrelias; K. P. Kopper; T. Trypiniotis; S. J. Steinmuller; C. H.W. Barnes; Le Van Phong; Cheol Gi Kim; J. R. Jeong

doi:10.1109/TMAG.2009.2018868

Novel multibit magnetic tagging techniques for high-throughput multiplexed chemical analysis

B. Hong, J. Llandro, T. J. Hayward, T. Mitrelias, K. P. Kopper, T. Trypiniotis, S. J. Steinmuller, C. H.W. Barnes, Le Van Phong, Cheol Gi Kim, J. R. Jeong

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

2 Citations (Scopus)

Abstract

In this paper, we have investigated a remote encoding/decoding method of micrometer-sized multibit magnetic tags and demonstrated the operation of magnetic digital tags to discuss the practical issues which arise. The tags are formed from micron scale patterned ferromagnetic Co thin films, which are engineered to have different switching fields by tailoring the geometric shape of the elements. This enables the tags to be encoded and read by a sequence of globally applied magnetic fields. Full-field magneto-optical microscopy was used to achieve the remote writing and reading for magnetic digital tags. Our results demonstrate that the elements in the multibit tags are well separated in switching field and can be encoded/decoded independently by using globally applied magnetic fields and magneto-optical microscopy. We will discuss practical issues for high-information multibit magnetic tags including switching field distribution and repeatability with implications for the field of bioassays.

Original language	English
Article number	4957726
Pages (from-to)	2878-2881
Number of pages	4
Journal	IEEE Transactions on Magnetics
Volume	45
Issue number	6
DOIs	https://doi.org/10.1109/TMAG.2009.2018868
Publication status	Published - 2009 Jun
Externally published	Yes

Keywords

Bioassay
High-throughput analysis
Kerr microscopy
Magnetic multibit tag

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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10.1109/TMAG.2009.2018868

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Hong, B., Llandro, J., Hayward, T. J., Mitrelias, T., Kopper, K. P., Trypiniotis, T., Steinmuller, S. J., Barnes, C. H. W., Van Phong, L., Kim, C. G., & Jeong, J. R. (2009). Novel multibit magnetic tagging techniques for high-throughput multiplexed chemical analysis. IEEE Transactions on Magnetics, 45(6), 2878-2881. [4957726]. https://doi.org/10.1109/TMAG.2009.2018868

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title = "Novel multibit magnetic tagging techniques for high-throughput multiplexed chemical analysis",

abstract = "In this paper, we have investigated a remote encoding/decoding method of micrometer-sized multibit magnetic tags and demonstrated the operation of magnetic digital tags to discuss the practical issues which arise. The tags are formed from micron scale patterned ferromagnetic Co thin films, which are engineered to have different switching fields by tailoring the geometric shape of the elements. This enables the tags to be encoded and read by a sequence of globally applied magnetic fields. Full-field magneto-optical microscopy was used to achieve the remote writing and reading for magnetic digital tags. Our results demonstrate that the elements in the multibit tags are well separated in switching field and can be encoded/decoded independently by using globally applied magnetic fields and magneto-optical microscopy. We will discuss practical issues for high-information multibit magnetic tags including switching field distribution and repeatability with implications for the field of bioassays.",

keywords = "Bioassay, High-throughput analysis, Kerr microscopy, Magnetic multibit tag",

author = "B. Hong and J. Llandro and Hayward, {T. J.} and T. Mitrelias and Kopper, {K. P.} and T. Trypiniotis and Steinmuller, {S. J.} and Barnes, {C. H.W.} and {Van Phong}, Le and Kim, {Cheol Gi} and Jeong, {J. R.}",

note = "Funding Information: This work was supported by the Korean Government under Korea Research Foundation Grant KRF-2008-331-D00234. The authors would like to dedicate this paper to the memory of Prof. J. A. C. Bland (1958–2007).",

year = "2009",

month = jun,

doi = "10.1109/TMAG.2009.2018868",

language = "English",

volume = "45",

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AU - Hong, B.

AU - Llandro, J.

AU - Hayward, T. J.

AU - Mitrelias, T.

AU - Kopper, K. P.

AU - Trypiniotis, T.

AU - Steinmuller, S. J.

AU - Barnes, C. H.W.

AU - Van Phong, Le

AU - Kim, Cheol Gi

AU - Jeong, J. R.

N1 - Funding Information: This work was supported by the Korean Government under Korea Research Foundation Grant KRF-2008-331-D00234. The authors would like to dedicate this paper to the memory of Prof. J. A. C. Bland (1958–2007).

PY - 2009/6

Y1 - 2009/6

N2 - In this paper, we have investigated a remote encoding/decoding method of micrometer-sized multibit magnetic tags and demonstrated the operation of magnetic digital tags to discuss the practical issues which arise. The tags are formed from micron scale patterned ferromagnetic Co thin films, which are engineered to have different switching fields by tailoring the geometric shape of the elements. This enables the tags to be encoded and read by a sequence of globally applied magnetic fields. Full-field magneto-optical microscopy was used to achieve the remote writing and reading for magnetic digital tags. Our results demonstrate that the elements in the multibit tags are well separated in switching field and can be encoded/decoded independently by using globally applied magnetic fields and magneto-optical microscopy. We will discuss practical issues for high-information multibit magnetic tags including switching field distribution and repeatability with implications for the field of bioassays.

AB - In this paper, we have investigated a remote encoding/decoding method of micrometer-sized multibit magnetic tags and demonstrated the operation of magnetic digital tags to discuss the practical issues which arise. The tags are formed from micron scale patterned ferromagnetic Co thin films, which are engineered to have different switching fields by tailoring the geometric shape of the elements. This enables the tags to be encoded and read by a sequence of globally applied magnetic fields. Full-field magneto-optical microscopy was used to achieve the remote writing and reading for magnetic digital tags. Our results demonstrate that the elements in the multibit tags are well separated in switching field and can be encoded/decoded independently by using globally applied magnetic fields and magneto-optical microscopy. We will discuss practical issues for high-information multibit magnetic tags including switching field distribution and repeatability with implications for the field of bioassays.

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KW - High-throughput analysis

KW - Kerr microscopy

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Novel multibit magnetic tagging techniques for high-throughput multiplexed chemical analysis

Abstract

Keywords

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