Citation: Pengli Gao, Zhigang Xie, Min Zheng. Small nanoparticles bring big prospect: The synthesis, modification, photoluminescence and sensing applications of carbon dots[J]. Chinese Chemical Letters, ;2022, 33(4): 1659-1672. doi: 10.1016/j.cclet.2021.09.085 shu

Small nanoparticles bring big prospect: The synthesis, modification, photoluminescence and sensing applications of carbon dots

Pengli Gao ^a ,
Zhigang Xie ^b ,
Min Zheng ^{a, *,}

a.
School of Chemistry and Life Science, Advanced Institute of Materials Science, Changchun University of Technology, Changchun 130022, China
b.
State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China

Author Bio: Pengli Gao received hr B.S. degree from Xinzhou Normal University (2017). She received her master's degree from the School of Chemistry and Life Sciences, Changchun University of Technology (2020). She is currently a Ph.D. candidate at the School of Biological Science and Medical Engineering, Beihang University. Her research interests focus on molecular imaging
Zhigang Xie is a full professor at Changchun Institute of Applied Chemistry (CIAC), Chinese Academy of Science (CAS). Dr Xie obtained his B.S. degree in Chemistry from Henan University in 2002 and his Ph.D. degree in Polymer Chemistry from CIAC in 2007. Before joining CIAC in 2012, he worked as a postdoctoral fellow at the Polytechnic University at Brooklyn and the University of North Carolina at Chapel Hill. His research focuses on polymeric nanomedicines and fluorescent nanoparticles

zhengm@ciac.ac.cn

Received Date: 14 May 2021
Revised Date: 23 September 2021
Accepted Date: 23 September 2021
Available Online: 30 September 2021

Figures(15)

As a new type of carbon-based fluorescent nanomaterials, carbon dots (CDs) are provided with the advantages of small size, excellent photoluminescence (PL) property, easy surface modification, robust stability, good water solubility and biocompatibility, which endow them with great potential in sensing. In this review, we first describe the preparation of CDs from different starting materials via various techniques, and pre-/post-modification strategies to modulate their PL properties. Second, we outline the optical properties of CDs, including UV-vis absorption and PL, especially the PL mechanisms of CDs are presented in detail from the size effect, molecular state, surface state and defect state. Third, we summarize the research progress of CDs in sensing environmental pollutants, bioactive substances, biological microenvironments, bacteria and viruses via different mechanisms. In addition, we envision the future development trends and prospects for CDs-based nanosensors. We believe that this type of small nanoparticles will bring about big prospect in the near future.
- Carbon dots,
- Synthesis,
- Modification,
- Mechanisms,
- Sensing
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