Eu,Sm,Mn-Doped CaS Nanoparticles with 59.3% Upconversion-Luminescence Quantum Yield: Enabling Ultrasensitive and Facile Smartphone-Based Sulfite Detection.
Ji-Kai WangYan-Li ZhuCraig A GrimesZhou NieQingyun CaiPublished in: Analytical chemistry (2018)
Eu,Sm,Mn-doped CaS (ESM-CaS) nanoparticles demonstrate a remarkable upconversion luminescence (UCL) efficiency with a quantum yield of nearly 60%, enabling many new applications and devices. We describe an ESM-CaS nanoparticle-based paper test strip for one-shot quantitative measurement of sulfite concentration using a smartphone-based reader. The integrated UCL-based sulfite detection system features high sensitivity and facile operation without the need for separation and pretreatment. Moreover, the design principles are general in nature and so can be tailored for the detection and quantification of a variety of other analytes.
Keyphrases
- quantum dots
- energy transfer
- crispr cas
- genome editing
- metal organic framework
- loop mediated isothermal amplification
- label free
- sensitive detection
- real time pcr
- highly efficient
- photodynamic therapy
- molecular dynamics
- visible light
- gold nanoparticles
- high resolution
- monte carlo
- transition metal
- walled carbon nanotubes