Aqueous synthesis of high bright and tunable near-infrared AgInSe2-ZnSe quantum dots for bioimaging

作者：Che, Dongchen; Zhu, Xiaoxu; Wang, Hongzhi^*; Duan, Yourong; Zhang, Qinghong; Li, Yaogang

来源：Journal of Colloid and Interface Science, 2016, 463: 1-7.

DOI：10.1016/j.jcis.2015.10.039

• Quantum dots
• Bioimaging probe
• Luminescence
• Tunable near-infrared emission
• AgInSe2-ZnSe

Efficient synthetic methods for near-infrared quantum dots with good biophysical properties as bioimaging agents are urgently required. In this work, a simple and fast synthesis of highly luminescent, near-infrared AgInSe2-ZnSe quantum dots (QDs) with tunable emissions in aqueous media is reported. This method avoids high temperature and pressure and organic solvents to directly generate water-dispersible AgInSe2-ZnSe QDs. The photoluminescence emission peak of the AgInSe2-ZnSe QDs ranged from 625 to 940 nm, with quantum yields up to 31%. The AgInSe2-ZnSe QDs with high quantum yield, near-infrared and low cytotoxic could be used as good cell labels, showing great potential applications in bio-imaging.

• 出版日期2016-2-1
• 单位东华大学; 上海交通大学