Related Experiment Video
Updated: Jan 9, 2026
A Rapid and Quantitative Fluorimetric Method for Protein-Targeting Small Molecule Drug Screening
Published on: October 16, 2015
Ultrasmall glutathione-protected Au/Cu and their alloy nanoclusters with specific ROS generation
Ling Chen1, Tianfeng Pan1, Jing Jin1
1Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Institutes of Physical Science and Information Technology and Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, China.
Three glutathione-protected nanoclusters were synthesized, each generating specific reactive oxygen species (ROS). This discovery highlights their potential for bioclinical applications due to their unique ROS generation capabilities.
Area of Science:
- Nanomaterials Science
- Biochemistry
- Chemical Biology
Background:
- Glutathione (GSH)-protected nanoclusters are emerging materials with potential biological applications.
- Controlling the specific generation of reactive oxygen species (ROS) is crucial for various biomedical applications.
Purpose of the Study:
- To synthesize and characterize novel glutathione (GSH)-protected nanoclusters.
- To investigate the specific reactive oxygen species (ROS) generation capabilities of these nanoclusters.
- To evaluate the potential of these nanoclusters in bioclinical applications.
Main Methods:
- Synthesis of three distinct GSH-protected nanoclusters: [Au5(SG)3]-, [Au9Cu2(SG)7]3-, and [Cu7(SG)5]3+.
- Characterization using Electrospray Ionization Mass Spectrometry (ESI-MS), Electron Paramagnetic Resonance (EPR), Nuclear Magnetic Resonance (NMR), and X-ray Photoelectron Spectroscopy (XPS).
- Assessment of ROS generation under ambient conditions.
Main Results:
- Successful synthesis and comprehensive characterization of the three GSH-protected nanoclusters.
- Demonstration that each nanocluster exhibits specificity in generating distinct ROS: hydroxyl radicals (•OH), singlet oxygen (1O2), or superoxide anions (O2•-).
- Confirmation of structural and functional specificity in ROS generation by the nanoclusters.
Conclusions:
- The synthesized GSH-protected nanoclusters display unique and specific ROS generation profiles.
- These nanoclusters hold significant promise for advancing bioclinical applications due to their tailored ROS production.
- Further research into these nanoclusters could lead to novel diagnostic or therapeutic strategies.
