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Updated: Aug 11, 2025
Compact Quantum Dots for Single-molecule Imaging
Published on: October 9, 2012
Ultra-stable tellurium-doped carbon quantum dots for cell protection and near-infrared photodynamic application
Hao Chen1, Kaikai Wen1, Jingya Chen2
1Center of Materials Science and Opto-electronic Technology, College of Materials Science and Opto-electronic Technology & CAS Center for Excellence in Topological Quantum Computation & CAS Key Laboratory of Vacuum Physics, University of Chinese Academy of Sciences, Beijing 100049, China.
Abstract:
It is important to regulate the concentration of reactive oxygen species (ROS) in cells since they play important roles in metabolism. Thus, developing nanoreagents to control the ROS is critical. Herein, tellurium-doped carbon quantum dots (Te-CDs) were developed by a simple and efficient hydrothermal method, which can scavenge H2O2 to protect cells under ambient condition, but generate ·OH under 808 nm irradiation as photodynamic application. This contribution presented a kind of novel CDs with dual-functions, which can potentially regulate ROS under different conditions.
