Journal
ANALYTICAL CHEMISTRY
Volume 92, Issue 7, Pages 4721-4725Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.analchem.9b05807
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Funding
- National Natural Science Foundation of China [81671758]
- Guangdong Natural Science Foundation of Research Team [2016A030312006]
- K.C. Wong Education Foundation [GJTD-2018-14]
- Shenzhen Science and Technology Program [JCYJ20170818113538482, JCYJ20170818162522440, JCYJ20170818154843625, JCYJ20180306174918294]
- SIAT Innovation Program for Excellent Young Researchers [201920]
- UNSW-CAS Collaborative Research Seed Program 2019
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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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