Gold nanoclusters for ratiometric sensing of pH in extremely acidic media.

6533b7cffe1ef96bd1259a1d

RESEARCH PRODUCT

Gold nanoclusters for ratiometric sensing of pH in extremely acidic media.

Adele Bonanno Julia Pérez-prieto Irene Pérez-herráez Elena Zaballos-garcía

subject

Fluorophore Metals and Alloys General Chemistry Phosphate Photochemistry Fluorescence Catalysis Surfaces Coatings and Films Electronic Optical and Magnetic Materials Nanoclusters chemistry.chemical_compound chemistry Materials Chemistry Ceramics and Composites Ph range

description

AuNCs capped with β-nicotinamide adenine dinucleotide phosphate exhibit an outstanding performance as fluorescent pH sensors; specifically they exhibit a high emission in strongly acidic media and linear dependence on pH in extremely acidic media (0.6–2.7) as well as in the 7.0–9.2 pH range, while they are unresponsive at intermediate pH values. Remarkably, these AuNCs make ratiometric sensing possible in extremely acidic media with a single fluorophore, specifically the nanocluster itself.

year	journal	country	edition	language
2019-12-13	Chemical communications (Cambridge, England)

10.1039/c9cc08539d https://pubmed.ncbi.nlm.nih.gov/31830157

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