Immunoassay Magnetic Markers Examination by SV-GMR Needle Type Probe

カテゴリ: 全国大会

論文No: 2-119

グループ名: 【全国大会】平成23年電気学会全国大会論文集

発行日: 2011/03/05

タイトル(英語): Immunoassay Magnetic Markers Examination by SV-GMR Needle Type Probe

著者名: Ryszard Haraszczuk(金沢大学),柿川 真紀子(金沢大学),上野 敏行(金沢大学),山田 外史(金沢大学)

著者名(英語): Ryszard Haraszczuk(Institute of Nature and Environmental Technology),Makiko Kakikawa(Institute of Nature and Environmental Technology),Toshiyuki Ueno(Institute of Nature and Environmental Technology),Sotoshi Yamada(Institute of Nature and Environmental Technology)

要約(日本語): The aim is to present the methodology for magnetic markers immunoassay measurements by spin valve giant magnetoresistive SV-GMR needle probe. Extremely small size and specific construction of this type probe allow detecting the changes of complex susceptibility directly from the sample. The needle type probe consists of four (SV-GMR) elements connected in a Wheatstone bridge. SV-GMR sensing element has dimensions 40 ?m per 75 ?m. Needle probe has sensitivity equal to 11?V/?T. This article presents setup feasible to perform spectroscopic magnetic markers measurement. It includes data connected with signal changes caused by magnetic markers dilution. It shows influence of particle size changes (120 nm, 1 ?m, 3.5 ?m, 6.5 ?m) on real and imaginary part of the complex susceptibility of the specimen. While performing measurements, probe sensing elements were placed inside the sample.

原稿種別: 日本語

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