Abstract Strontium-90 (90Sr) is a major radioactive component that has attracted great
attention, but its detection remains challenging since there are no specific energy rays …

In this work, a novel fluorescence nanoprobe based on MnO 2 nanosheets and DNAzyme
cyclic amplification was developed for label-free detection of GSH. In our design, the DNA …

Silver (Ag+) ions are highly toxic to aquatic organisms and accumulate in the human body
via the food chain. Therefore, the development of sensitive and selective quantitative …

In this study, a label-free aptasensor utilizing colorimetric properties was developed to detect
Pb 2+ with high sensitivity. The approach involved applying modified aptamer which …

A novel tetrahedral DNA nanostructure (TDN) functionalized paper-based colorimetric
sensor was developed for ultrasensitive analysis of mercury ion (Hg 2+). On the paper …

Herein, we developed a sensing strategy for the label-free detection of Zn2+ based on G-
quadruplex. In the absence of Zn2+, there was a fluorescence enhancement of thioflavin T …

We described a rapid and highly sensitive colorimetric method for the detection and
quantification of silver ions employing glutathione (GSH)-mediated MnO 2 nanosheets as an …

As well as polluting the environment, mercury also causes diseases and poses a threat to
human health. Thus, it is crucial to implement the rapid and sensitive determination of Hg 2+ …

Heavy metal pollution can pose a threat to food safety and human health, and accurate
quantification of heavy metal ions is a vital requirement. Emerging DNA nanostructures …

We present a novel simple strategy for the detection of Pb 2+ based on G-quadruplex DNA
and gold nanoparticles. First, gold nanoparticles were chemically adsorbed onto the surface …