A zero-background fluorescent aptasensor for ultrasensitive detection of pesticides based on magnetic three-dimensional DNA walker and poly(T) -templated copper nanoparticles

2021 ◽  
pp. 130172
Author(s):  
Yunwei Zhao ◽  
Ying Wang ◽  
Ruimei Yang ◽  
Hui Zhang ◽  
Yanfang Zhao ◽  
...  
Keyword(s):  
Copper Nanoparticles ◽  
Three Dimensional ◽  
Ultrasensitive Detection ◽  
Dna Walker ◽  
Fluorescent Aptasensor

A novel fluorescent assay for the ultrasensitive detection of miRNA-21 with the use of G-quadruplex structures as an immobilization material for a signal indicator

2019 ◽  
Vol 55 (45) ◽  
pp. 6453-6456 ◽  
Author(s):  
Ze-Zhou Yang ◽  
Zhi-Bin Wen ◽  
Xin Peng ◽  
Ya-Qin Chai ◽  
Wen-Bin Liang ◽  
...  
Keyword(s):  
Nucleic Acid ◽  
Three Dimensional ◽  
Nucleic Acid Amplification ◽  
Ultrasensitive Detection ◽  
Fluorescent Assay ◽  
Target Recycling ◽  
Dna Walker ◽  
G Quadruplex

A fluorescent assay for the ultrasensitive detection of miRNA-21 is based on immobilization of PPIX as signal indicators in massive G-quadruplex structures obtained by target recycling, three-dimensional DNA walker and RCA coupled cascade nucleic acid amplification.

A three-dimensional multipedal DNA walker for the ultrasensitive detection of tumor exosomes

2020 ◽  
Vol 56 (85) ◽  
pp. 12949-12952
Author(s):  
Huizhen Wang ◽  
Kejing Wan ◽  
Yue Zhou ◽  
Xiaoxiao He ◽  
Dinggeng He ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Ultrasensitive Detection ◽  
Dna Walker ◽  
Tumor Exosomes

Herein, we developed a three-dimensional (3D) multipedal DNA walker based on aptamer-binding for ultrasensitive exosome sensing.

A fluorescent aptasensor based on berberine for ultrasensitive detection of bisphenol A in tap water

2021 ◽  
Author(s):  
Yuxin Wei ◽  
Yangyang Zhou ◽  
Yanli Wei ◽  
Chuan Dong ◽  
Li Wang
Keyword(s):  
Bisphenol A ◽  
Human Health ◽  
Food Packaging ◽  
Tap Water ◽  
Water Systems ◽  
Ultrasensitive Detection ◽  
Its Analysis ◽  
Potential Impact ◽  
Fluorescent Aptasensor

The residues of bisphenol A (BPA) in food packaging and water systems have potential impact on human health, therefore, its analysis and detection has drawn people's attention. In this work,...

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