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

Qiaoli Ren; Yuheng Ma; Shumin Zhang; Lu Ga; Jun Ai

doi:10.1021/acsomega.0c06276

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

ACS Omega. 2021 Feb 25;6(9):6361-6367. doi: 10.1021/acsomega.0c06276. eCollection 2021 Mar 9.

Authors

Qiaoli Ren^{1

2}, Yuheng Ma¹, Shumin Zhang¹, Lu Ga¹, Jun Ai²

Affiliations

¹ College of Pharmacy, Inner Mongolia Medical University, Jinchuankaifaqu, Hohhot 010110, People's Republic of China.
² College of Chemistry and Environmental Science, Inner Mongolian Key Laboratory for Enviromental Chemistry, Inner Mongolia Normal University, 81 Zhaowudalu, Hohhot 010022, People's Republic of China.

Abstract

This work reports a simple water-phase microwave method for the synthesis of water-soluble red emission Ag₂S quantum dots at low temperatures without the need for an anaerobic process. It is worth noting that the prepared water-soluble Ag₂S quantum dots enjoy positive water dispersion stability. 3-(4,5)-Dimethylthiahiazo(-z-y1)-3,5-di-phenytetrazoliumromide (MTT) results showed that the prepared Ag₂S quantum dots had promising biocompatibility and low cytotoxicity. In addition, we further applied the low-toxicity near-infrared Ag₂S quantum dots for cell imaging, demonstrating a promising biological probe for cell imaging.