Please use this identifier to cite or link to this item: http://rportal.lib.ntnu.edu.tw:80/handle/77345300/36962
Title: DNA detection using a radio frequency biosensor with gold nanoparticles
Authors: 國立臺灣師範大學機電工程學系
Chien, Jui-Hung
Yang, Ching-Hao
Chen, Ping-Hei
Yang, Chii-Rong
Lin, Chin-Shen
Wang, Huei
Issue Date: 1-May-2008
Publisher: Frontiers in Bioscience
Abstract: This study presents a novel method for DNA detection with multi-layer AuNPs to enhance overall detection sensitivity. This essay achieves not only an innovative radio-frequency biosensor but also a critical signal amplification methodology. Results show that bandwidth change for multi-layer AuNP with hybridization of DNA exceeds that for the double-layer AuNP up to 0.5 GHz. Furthermore, the developed biosensor detection limit for the DNA set employed in this essay is currently 10 pM. A single base-pair mutation of the wild-type target DNA could be distinguished from the perfect match target DNA at the melting temperature of 47 degrees C with a temperature controlling system. Experimental results in this study indicate that the proposed biosensor and the developed amplification methodology are successful. As health care becomes much more essential in modern life, this biosensor has potential applications in a screening kit for recognizing, sensing, and quantifying biomolecules in real samples.
URI: http://rportal.lib.ntnu.edu.tw/handle/77345300/36962
ISSN: 1093-9946
Other Identifiers: ntnulib_tp_E0403_01_019
Appears in Collections:教師著作

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