Related Experiment Video
Updated: Jul 11, 2026
08:19
Synthesis, Characterization, and Functionalization of Hybrid Au/CdS and Au/ZnS Core/Shell Nanoparticles
Published on: March 2, 2016
Efficient emission from core/(doped) shell nanoparticles: applications for chemical sensing
Rahul Thakar1, Yingchuan Chen, Preston T Snee
1Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607-7061, USA.
Nano Letters
|October 12, 2007
Summary
We developed nontoxic manganese-doped zinc selenide/sulfide nanocrystals. These materials enable efficient energy transfer for potential use in bioimaging and ratiometric sensing applications.
Area of Science:
- Materials Science
- Nanotechnology
- Quantum Dots
Background:
- Manganese-doped zinc selenide/sulfide core/shell nanocrystals (NCs) offer potential for advanced applications.
- Efficient energy transfer is crucial for developing novel sensing and imaging agents.
Purpose of the Study:
- To synthesize and characterize manganese-doped zinc selenide/zinc sulfide core/shell NCs.
- To investigate energy transfer mechanisms within these NCs and their potential for bioimaging and sensing.
Main Methods:
- A two-step synthesis approach was employed to create the core/shell NCs.
- Förster resonant energy transfer (FRET) was studied by conjugating NCs with an organic dye.
Main Results:
- The synthesis yielded nontoxic core/shell NCs with efficient core-to-shell energy transfer.
- The NCs maintained approximately 25% quantum efficiency in aqueous solution.
- Efficient FRET was demonstrated from the doped shell to a surface-bound organic dye.
Conclusions:
- Manganese-doped zinc selenide/sulfide NCs are promising for bioimaging due to their nontoxicity and aqueous stability.
- The demonstrated FRET capability indicates their utility in developing novel ratiometric sensing platforms.
