Publications by authors named "Sunipa Pramanik"
Quaternary chalcogenide copper zinc tin sulfide (CZTS) nanoparticles are used to make the p-type absorber layer in CZTS solar cells, which are considered more benign alternatives to those based on cadmium telluride (CdTe) and less expensive than copper indium gallium selenide. CZTS has an ideal band gap and a high absorption coefficient for solar radiation, making the nanoparticles an attractive option for photovoltaic cells. In this work, we explore the toxicity of CZTS nanoparticles using an environmentally relevant bacterial model MR-1.
View Article and Find Full Text PDFAdverse Interactions of Luminescent Semiconductor Quantum Dots with Liposomes and .
ACS Appl Nano Mater
September 2018
Article Synopsis
- Cadmium-containing quantum dots (QDs) are widely used in various technologies, but their potential harmful effects on health and the environment are concerning.
- This study focuses on how different types of QDs—cadmium-containing (CdSe) and cadmium-free (ZnSe)—interact with lipid membranes (liposomes) and an environmentally relevant bacteria strain (MR-1).
- The research finds that QD concentration significantly affects membrane stability, with CdSe QDs causing more disruption and bacterial cell death compared to their cadmium-free counterparts, while the presence of a ZnS shell alters the impact of these QDs on membrane integrity.