Fluorescence enhancement of CdTe/CdS quantum dots by coupling of glyphosate and its application for sensitive detection of copper ion

Detection of DNA utilizing a fluorescent reversible change of a biosensor based on the electron transfer from quantum dots to polymyxin B sulfate

“…The salmon pink CdTe solution was obtained. Finally, the concentration of CdTe QDs was 2.0 Â 10 À3 M (determined by the Te 2À concentration)[18].…”

Silver ion modulated CdS quantum dots for highly selective detection of trace Hg2+

“…However, this approach requires the design of a specific capping ligand for the reaction between metal ions and the QD surface. Therefore, in order to design more versatile Hg 2+ and heavy metal ion sensors based QDs which are not limited by the specific interaction/reaction on the QDs surface, a two-step fluorescence change strategy (turn-on-off/turn-off-on) is proposed [30][31][32][33]. For this approach, the fluorescence intensity of the QDs is firstly modulated by an appropriate conjugated compound (such as organic compounds or some metal ions).…”

Effective Determination of Zn2+, Mn2+, and Cu2+ Simultaneously By Using Dual‐Emissive Carbon Dots as Colorimetric Fluorescent Probe

“…Though it is prevalent in living organisms and is a part of many metalloenzymes, elevated levels of manganese are harmful to the nervous system and can result in manganism . Another integral trace element, copper, is also important in numerous living organisms;, however, excessive amounts of Cu 2+ are not only toxic to living biosomes and cause serious damage to the kidneys, liver, and central nervous system, the widespread use of copper in agriculture and industry also leads to serious contamination of the environment , . Thus, it is necessary to develop analytical methods for detecting Zn 2+ , Mn 2+ , and Cu 2+ to facilitate environmental and human health monitoring.…”