Carbon Dots in Laboratory Medicine: Synthesis, Properties, and Applications

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Nanoscale, 2026, Accepted ManuscriptDOI: 10.1039/D5NR05473G, Review ArticleMengdan Chen, Jie Liu, Chunfeng Zhai, Qiufang Gong, Yunyang Zhao, Chao LiangCarbon dots (CDs), zero-dimensional carbon-based nanomaterials, have significantly advanced laboratory medic…

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Carbon Dots in Laboratory Medicine: Synthesis, Properties, and Applications

Abstract

Carbon dots (CDs), zero-dimensional carbon-based nanomaterials, have significantly advanced laboratory medicine due to their high photoluminescence quantum yield, excellent biocompatibility, and versatile surface functionalization. This review systematically summarizes CDs ' synthesis strategies (top-down and bottom-up approaches), structural/optical characteristics, and diverse applications in the field including the sensitive detection of biomolecules (proteins, nucleic acids, small biomolecules), microbial identification, cell/tissue imaging, and diagnosis of cancer, infectious diseases, and other disorders. Despite challenges such as poor reproducibility, lack of standardized protocols, and hurdles in clinical translation, CDs hold great promise for enabling sensitive, rapid, and personalized diagnostic solutions, especially with emerging trends like artificial intelligence (AI)facilitated design and point-of-care sensors. Future directions focus on developing multifunctional probes, advancing clinical translation, integrating with cutting-edge technologies (microfluidics, AI), and enabling single-cell analysis, positioning CDs to revolutionize precision diagnostics and personalized medicine.

• This article is part of the themed collection: Recent Review Articles