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NCUEIR > College of Science > Department of Chemistry > Periodical Articles > Item 987654321/1556

Please use this identifier to cite or link to this item: http://ir.ncue.edu.tw/ir/handle/987654321/1556

Title:	DNA Functionalized Gold Nanoparticles for Bioanalysis
Authors:	Lin, Y.-W.;Liu, C.-W.;Chang, H.-T.
Contributors:	化學系
Date:	2009
Issue Date:	2010-11-10T06:53:01Z
Abstract:	Gold nanoparticles (Au NPs) have become one of the most interesting sensing materials because of their unique size- and shape-dependent optical properties, high extinction coefficients, and superquenching capability. Au NPs that are bioconjugated with DNA (DNA-Au NPs) have been demonstrated for selective and sensitive detection of analytes such as mercury(II) ions, platelet-derived growth factor (PDGF), and adenosine triphosphate (ATP). This review focuses on approaches using DNA-Au NPs for colorimetric, fluorescent, and scattering detection of biopolymers and small solutes. We highlight the important roles that the size and concentration of Au NPs, the length and sequence of DNA, the nature of the capping agents, and the ionic strength and pH of solution play in determining the specificity and sensitivity of the nanosensors for the analytes. The advantages and disadvantages of different detection methods for sensing of interesting analytes using DNA-Au NPs will be discussed.
Relation:	Anal. Methods, 1, 14-24
Appears in Collections:	[Department of Chemistry] Periodical Articles

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