Surface Engineering of Quantum Dots for Self-Powered Ultraviolet Photodetection and Information Encryption.

We demonstrate fabrication of photodetectors in the UVC and UVA regions, based on surface engineering of Mn-doped ZnS Qdot. Mn-doped ZnS Qdot exhibited UVC detection with a responsivity of 0.3 ± 0.

Crystallization-Induced Emission Enhancement of Nanoclusters and One-Step Conversion of "Nanoclusters to Nanoparticles" as the Basis for Intracellular Logic Operations.

Herein, we report the construction of intracellular logic operations using luminescent histidine stabilized gold nanoclusters (His Au NCs). The luminescence intensity of His Au NCs was found to be significantly enhanced following interaction with zinc ions, owing to "Crystallization induced emission enhancement". Further, the luminescence intensity of His Au NCs was found to be effectively quenched in presence of sulphide ions, owing to transformation of emissive His Au NCs to non-emissive gold nanoparticles.