Ratiometric Photoacoustic Chemical Sensor for Pd2+ Ion.

Analytical Chemistry
Jingjing XiangLintao Cai

Abstract

Recently, small molecule photoacoustic sensors have emerged prominently in chem/biosensing owing to their excellent performance of high contrast, high resolution, and deep penetration depth. However, there has been little report on a photoacoustic sensor for Pd2+ detection so far. Herein, a ratiometric photoacoustic Pd2+ sensor, Cy-DPA, based on cyanine fluorophore has been developed. The absorbance peak of Cy-DPA shifts from 710 to 770 nm after the interaction with Pd2+, thus producing a strong PA signal output at 770 nm. As-prepared Cy-DPA could sensing palladium with high sensitivity (27 nM) and selectivity in a fast response (<30 s), which opened new avenue for Pd2+ real-time detection in vivo.

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Citations

Aug 10, 2020·Chembiochem : a European Journal of Chemical Biology·Shichao Wang, Xuanjun Zhang
May 29, 2021·Biosensors & Bioelectronics·Yuqian ZhangAli K Yetisen

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