Immunomagnetic reduction assay using high-Tc superconducting-quantum-interference-device-based magnetosusceptometry

J. J. Chieh, Shieh-Yueh Yang, Herng-Er Horng*, C. Y. Yu, C. L. Lee, H. L. Wu, Chin Yih Hong, Hong-Chang Yang


研究成果: 雜誌貢獻期刊論文同行評審

26 引文 斯高帕斯(Scopus)


Via immunomagnetic reduction assay, biomolecules can be quantitatively detected with aid of biofunctionalized magnetic nanoparticles, which are used as labeling markers for specific biomolecules. To achieve ultra-high sensitivity in detecting biomolecules, superconducting quantum interference device (SQUID) is a promising candidate to act as a sensor to the magnetic signal related to the concentration of detected biomolecules. In the past, we developed a single channel SQUID-based magnetosusceptometry. In order to increase the detection through-put, multichannel SQUID-based magnetosusceptometry is developed. In this work, the design and working principle of four-channel SQUID-based magnetosusceptometry are introduced. Using utilizing scanning technology, four samples can be simultaneously logged into the SQUID-based magnetosusceptometry. Notably, only single SQUID magnetometer is used in the magnetosusceptometry. The precision and sensitivity in detecting biomolecules using the four-channel SQUID-based magnetosusceptometry are investigated.

期刊Journal of Applied Physics
出版狀態已發佈 - 2010 4月 1

ASJC Scopus subject areas

  • 物理與天文學 (全部)


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