期刊
RSC ADVANCES
卷 5, 期 118, 页码 97898-97902出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ra19628k
关键词
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资金
- National Natural Science Foundation of China [21522102, 21503095]
- Natural Science Foundation of Jiangsu Province
- MOF
- MOE [BK20150145, BX20151038, BK20140003, BE2013613, BE2013611]
The accurate monitoring of trace cancer biomarkers is crucial for the early diagnosis of cancer. In the present study, we constructed a gold nanorod-quantum dot core-satellite assembly using a PSAaptamer and its complementary DNA and developed an ultrasensitive fluorescence-aptasensor for the detection of prostate specific antigen (PSA) by monitoring fluorescence intensity. The limit of detection (LOD) for PSA was 0.029 aM, with an excellent linear range from 0.1 aM to 10 aM. This super-sensitive aptasensor was demonstrated to be robust in the analysis of human serum samples, and shows great potential for early cancer diagnosis and therapy.
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