Exploring the fluorescence enhancement of the split G-quadruplex towards DNA-templated AgNCs and their application in omethoate detection

Abstract

Herein, the fluorescent enhancement of the split G-quadruplex (G4) towards the DNA-templated AgNCs (DNA-AgNCs) was systematically studied. It is shown that the two G-rich probes with the guanine (G) bases...

Construction of an electrochemical–fluorescent dual-mode sensor with a dual-mode signal AgNC probe synthesized from cytosine-rich DNA for OTA detection

“…In recent years, AgNCs have been widely used as fluorescent signal probes for the detection of small molecules because of their simple preparation, high quantum yield, low toxicity, adjustable fluorescence emission, and good biocompatibility. 20 Furthermore, AgNCs exhibit electrochemical redox signals 21 and possess favorable properties such as high conductivity, large specific surface area, and excellent biocompatibility. As a result, they are frequently employed as electrochemical signal probes in the development of electrochemical sensors.…”