One-Step Synthesis of Water-Soluble Silver Sulfide Quantum Dots and Their Application to Bioimaging

High Resolution Image Download MS PowerPoint Slide This work reports a simple water-phase microwave method for the synthesis of water-soluble red emission Ag 2 S quantum dots at low temperatures without the need for an anaerobic process. It is worth noting that the prepared water-soluble Ag 2 S quantum dots enjoy positive water dispersion stability. 3-(4,5)-Dimethylthiahiazo(- z -y1)-3,5-di-phenytetrazoliumromide (MTT) results showed that the prepared Ag 2 S quantum dots had promising biocompatibility and low cytotoxicity. In addition, we further applied the low-toxicity near-infrared Ag 2 S quantum dots for cell imaging, demonstrating a promising biological probe for cell imaging.