Gold nanorod (AuNR) colorimetric sensors have emerged as powerful tools in various chemosensing and biosensing applications due to their localized surface plasmon resonance (LSPR) extinction in the visible range.

A novel Hg²⁺-responsive thermometer system for translating mercury detection into temperature monitoring was developed based on an aggregation-activated oxidase-like activity of gold nanoparticles.

A simple ratio fluorescent ALP biosensor based on MnO₂ nanosheet-triggered in situ generation of two fluorescent signal indicators.

A new surface chemistry-based modulation for constructing activity-controllable Pt nanoparticle nanozymes and their application in the development of a triple signal readout-based three-in-one sensor for Cu²⁺ determination.