CdTe/ZnS core/shell quantum dot-based ultrasensitive \PET\ sensor for selective detection of Hg (II) in aqueous media
By Dilip Saikia and Priyanka Dutta and Neelotpal Sen Sarma and Nirab C. Adhikary
Published in Sensors and Actuators B: Chemical
2016
Abstract
In this work, we present a simple, ultrasensitive and rapid cost-effective sensing technique based on Mercaptosuccinic acid (MSA) capped CdTe/ZnS core/shell (CS) quantum dots (QD) for the detection of toxic Hg(II) in aqueous media. The present system demonstrations a remarkably low detection limit of one pico molar (pM) which is the best-reported work till date. Here, the CdTe/ZnS \CS\ \QD\ is synthesized by using a simple one pot aqueous method, and are characterized with the help of UV