Raspberry-Like Gold Nanoparticles Based On Nanoclusters Anchored on Cyclodextrin-Functionalized Nanoparticles: Synthesis and Ultrasensitive Electrochemical Detection of Chromium(VI) Ions.
Yongkai LuYangyang ZhouJunjie XiaSuyun ZhongYawen LiuQiang ChenHongxia ChenPublished in: ChemPlusChem (2022)
A facile synthetic strategy is devised to construct raspberry like gold nanoparticles (RbNPs) formed by gold nanoclusters wrapped around β-cyclodextrin functionalized gold nanoparticles (CD-AuNPs@AuNCs). An efficient and sensitive electrochemical sensor for the detection of Cr(VI) has been developed based on RbNPs. The sensing platform exhibits an excellent wide linear range (100 pg mL -1 to 10 μg mL -1 ), extremely low detection limit (40.91 fg mL -1 i. e. 0.79 pM), which may pave a new way to fabricate other ultrasensitive electrochemical sensors based on the designed RbNPs.
Keyphrases
- gold nanoparticles
- label free
- reduced graphene oxide
- quantum dots
- loop mediated isothermal amplification
- sensitive detection
- real time pcr
- molecularly imprinted
- ionic liquid
- air pollution
- heavy metals
- energy transfer
- particulate matter
- capillary electrophoresis
- polycyclic aromatic hydrocarbons
- risk assessment
- water soluble
- liquid chromatography
- silver nanoparticles
- tandem mass spectrometry
- electron transfer
- metal organic framework