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Updated: Jan 24, 2026

Synthesis of Cd-free InP/ZnS Quantum Dots Suitable for Biomedical Applications
Published on: February 6, 2016
A ZnS quantum dot-based super selective fluorescent chemosensor for soluble ppb-level total arsenic [As(iii) + As(v)]
1Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur-721302, India. mintu@chem.iitkgp.ac.in.
Abstract:
This study brings out a novel, superselective detection employing thiosalicylic acid-capped ZnS-based quantum dots that display photoluminescence "turn-on" characteristics only in the presence of arsenic in the aquatic medium for the first time. It shows a splendid limit of detection of soluble arsenic down to a few ppb level, much below than the MCL reported value, without being interfered by any other ions.
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