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Updated: Oct 5, 2025
Synthesis of Near-Infrared Emitting Gold Nanoclusters for Biological Applications
Published on: March 22, 2020
Rapid preparation of water-soluble Ag@Au nanoclusters with bright deep-red emission
Miao-Miao Yin1,2, Wen-Qi Chen1, Yan-Jun Hu2
1Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, P. R. China. fljiang@whu.edu.cn.
Abstract:
Deep-red (λem ∼ 710 nm) thiolated Ag@Au nanoclusters with a quantum yield of ∼18% were rapidly (∼12 min) prepared in aqueous solutions. The effects of pH and silver ions were demonstrated. The surface modification further resulted in nanoclusters with a quantum yield of ∼38%, the highest value ever reported for water-soluble red Au nanoclusters. This will highly facilitate their applications in sensing, bioimaging, etc.
