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Updated: Nov 20, 2025

Author Spotlight: Advancing SERS Technology: Au@Carbon Dot Nanoprobes for Label-Free Analysis and Imaging

Author Spotlight: Advancing SERS Technology: Au@Carbon Dot Nanoprobes for Label-Free Analysis and Imaging

Published on: June 9, 2023

Carbon Dots: An Emerging Smart Material for Analytical Applications.

Smita Das¹, Lightson Ngashangva¹, Pranab Goswami¹

¹Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India.

|January 20, 2021

Summary

Carbon dots (CDs) are smart nanomaterials with tunable light emission. This review covers their stimuli-responsive properties, synthesis, and applications in optical sensors, highlighting future potential.

Keywords:

analytical carbon dots chemiluminescence electrochemiluminescence optical photoluminescence smart materials

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Area of Science:

Materials Science
Nanotechnology
Analytical Chemistry

Background:

Carbon dots (CDs) are optically active carbon-based nanomaterials.
CDs exhibit tunable photoluminescence sensitive to external stimuli like pH and temperature.
This stimuli-responsiveness drives interest in developing advanced sensor platforms.

Purpose of the Study:

To review major advances in carbon dots (CDs).
Focus on smart material attributes and applications of CDs.
Discuss synthesis methods and photophysical properties.

Main Methods:

Literature review of carbon dot research.
Analysis of synthesis approaches including surface passivation and functionalization.
Examination of photophysical mechanisms and stimuli-responsive behaviors.

Main Results:

CDs possess remarkable stimuli-responsive smart material properties.
Synthesis methods significantly influence CD properties and applications.
Various applications in sensor development have been explored.

Conclusions:

Carbon dots show significant promise as optical signal transducers.
Further improvements in synthesis and understanding are needed.
Expanded applications in analytical platforms are anticipated.