Characterization of a sensitive biosensor based on an unmodified DNA and gold nanoparticle composite and its application in diquat determination

DNA usually adsorbs gold nanoparticles by virtue of mercapto or amino groups at one end of a DNA molecule. However, in this paper, we report a sensitive biosensor constructed using unmodified DNA molecules with consecutive adenines (CA DNA) and gold nanoparticles (GNPs). The CA DNA–GNP composite was...

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Bibliographic Details
Main Authors: Ling Mei Niu, Ying Liu, Kao Qi Lian, Li Ma, Wei Jun Kang
Format: Article
Language:English
Published: Elsevier 2018-07-01
Series:Arabian Journal of Chemistry
Online Access:http://www.sciencedirect.com/science/article/pii/S1878535215000787