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Updated: Apr 27, 2026

Compact Quantum Dots for Single-molecule Imaging

Compact Quantum Dots for Single-molecule Imaging

Published on: October 9, 2012

Colloidal nanocrystals fluoresced by surface coordination complexes.

Guan Wang¹, Jianwei Ji¹, Xinwen Zhang²

¹State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, P. R. China.

Scientific Reports

|June 28, 2014

Summary

This summary is machine-generated.

Researchers developed tunable fluorescent colloidal nanocrystals (NCs) from various materials. These NCs enable multicolor emission and show promise for light-emitting devices and in vivo cell imaging applications.

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Synthesis and Characterization of Supramolecular Colloids

Synthesis and Characterization of Supramolecular Colloids

Published on: April 22, 2016

Area of Science:

Materials Science
Nanotechnology
Photochemistry

Background:

Colloidal nanocrystals (NCs) offer tunable optical properties.
Surface complexation is a key factor in NC fluorescence.
Diverse material compositions (insulator, semiconductor, metal) allow for varied NC functionalities.

Purpose of the Study:

To synthesize colloidal nanocrystals (NCs) with fluorescence from surface complexes.
To demonstrate tunable photoluminescence across the visible to infrared spectrum.
To showcase the potential of these NCs in light-emitting devices and in vivo cell imaging.

Main Methods:

Synthesis of colloidal nanocrystals (NCs) with tunable fluorescence.
Characterization of NCs with varying compositions (insulator, semiconductor, metal) and structures (pure, doped, core/shell).
Fabrication of a light-emitting device and development of an in vivo cell imaging method.

Main Results:

Successful preparation of colloidal NCs exhibiting fluorescence from surface complexes.
Reversible tuning of photoluminescence across the visible to infrared spectrum.
Demonstration of multicolor emission capabilities.
Successful fabrication of a light-emitting device.
Successful implementation of a novel in vivo cell imaging method.

Conclusions:

The developed colloidal NCs possess tunable fluorescence properties originating from surface complexes.
These NCs are versatile, applicable in devices and advanced imaging techniques.
The technology holds significant potential for emerging applications in optoelectronics and biomedical imaging.