Electrochemiluminescence immunosensor for the determination of ag alpha fetoprotein based on energy scavenging of quantum dots
作者： Zhiyong Guo , Tingting Hao , Sui Wang , Ning Gan , Xing Li
DOI: 10.1016/J.ELECOM.2011.10.011
关键词:
摘要: Abstract An electrochemiluminescence (ECL) immunosensor for ultrasensitive detection of alpha fetoprotein (AFP) was fabricated using graphene-CdS quantum dots-alginate (G-CdS QDs-AL) as the immobilizing support and CdSe/ZnS QDs label. could effectively scavenge ECL G-CdS QDs-AL composite, quenched intensity depended linearly on logarithm AFP concentration in range from 0.05 to 500 fg/mL. The limit 20 ag/mL. proposed immunoassay protocol is stable, specific, highly sensitive promising clinical application.
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