4.6 Review

Synthesis and modification of carbon dots for advanced biosensing application

期刊

ANALYST
卷 146, 期 14, 页码 4418-4435

出版社

ROYAL SOC CHEMISTRY
DOI: 10.1039/d1an00466b

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资金

  1. Natural Science Foundation of China [22074130, 51902280]
  2. Zhongyuan Thousand Talents Plan-Science and Technology Innovation Leading Talents Project [204200510030]
  3. Natural Science Foundation of Henan [202300410329]
  4. Henan Provincial Science and technology innovation team [C20150026]
  5. Nanhu Scholars Program for Young Scholars of XYNU
  6. Chongqing Key Laboratory for Advanced Materials & Technologies of Clean Energies [JJNY201908]

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Carbon dots have attracted extensive attention for biosensing applications due to their small particle size, tunable optical properties, good conductivity, low cytotoxicity, and good biocompatibility. Various synthesis routes, modification strategies, and applications of carbon dots in different biosensing fields have been summarized in this review. The challenges and future prospects of using carbon dots for biosensors have also been proposed for further exploration.
There has been an explosion of interest in the use of nanomaterials for biosensing applications, and carbonaceous nanomaterials in particular are at the forefront of this explosion. Carbon dots (CDs), a new type of carbon material, have attracted extensive attention due to their fascinating properties, such as small particle size, tunable optical properties, good conductivity, low cytotoxicity, and good biocompatibility. These properties have enabled them to be highly promising candidates for the fabrication of various high-performance biosensors. In this review, we summarize the top-down and bottom-up synthesis routes of CDs, highlight their modification strategies, and discuss their applications in the fields of photoluminescence biosensors, electrochemiluminescence biosensors, chemiluminescence biosensors, electrochemical biosensors and fluorescence biosensors. In addition, the challenges and future prospects of the application of CDs for biosensors are also proposed.

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