TY - JOUR
AU - Ying, Y.
AB - The photoacoustic signal generated by laser-induced nanobubbles (PA-LINB) proved to be a sensitive tool to monitor the aggregation of gold nanoparticles. Here, a simple and label-free photoacoustic method for the rapid detection of Pb2+ in the aqueous phase was developed. Due to the high affinity of Pb2+ ions to glutathione, the presence of Pb2+ led to the aggregation of glutathione-conjugated gold nanoparticles (GSH-GNPs). Hence, by measuring the variation of the PA-LINB signal after the aggregation of GSH-GNPs, Pb2+ can be quantified. A low detection limit for Pb2+ (42 nM) and a wide linear working range (~42–1000 nM) were achieved. Furthermore, the proposed method showed good selectivity against other metal ions.
TI - Glutathione-Capped Gold Nanoparticles-Based Photoacoustic Sensor for Label-Free Detection of Lead Ions
JF - Journal of Applied Spectroscopy
DO - 10.1007/s10812-017-0483-6
DA - 2017-07-01
UR - https://www.deepdyve.com/lp/springer-journals/glutathione-capped-gold-nanoparticles-based-photoacoustic-sensor-for-Bf63uL0d3f
SP - 401
EP - 406
VL - 84
IS - 3
DP - DeepDyve
ER -