Abstract
Food toxins are regarded as a major source of health risks, serious illnesses susceptible to even death. These dangerous pathogens may lead to significant economic impact worldwide. The food production chain undergoes different stages like harvesting, processing, storage, packaging, distribution, and lastly preparation, and consumption. Therefore, each step is susceptible to risks of environmental contamination. Nowadays, the carbon quantum dots (CDs) are regarded as one of the most widely used hybrid carbon nanomaterials due to their different magical physical and chemical properties. The CDs have a size below 10 nm and show the fluorescent property. The CDs find vast applications in different fields like sensing, food safety, drug delivery, bioimaging, catalyst, energy conversion, etc. Compared to other available methods, the fluorescence detection techniques have low cost, easy handling, and safe operating system. There is a need for a review to compile the fluorescence properties of carbon nanodots used to detect food pathogens. This brief review is addressed in that direction and mostly focused on the synthesis of carbon dots-based fluorescence sensors for detecting pathogens and toxins in foods and beverages. The detailed mechanisms and origin of fluorescence properties of carbon quantum dots are also highlighted herewith.
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Abbreviations
- CDs:
-
Carbon dots
- CQDs:
-
Carbon quantum dots
- GQDs:
-
Graphene quantum dots
- PL:
-
Photoluminescence
- CPDs:
-
Carbonized polymer dots
- PET:
-
Photo-induced electron transfer
- RET:
-
Resonance energy transfer
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Acknowledgements
We would like to thank HOD, Department of Chemistry, and Principal, Bimala Prasad Chaliha College, Nagarbera, Kamrup Assam, India, for their technical support in writing this article. We would like to acknowledge IQAC cell and Science Forum of Bimala Prasad Chaliha College and also MNL group of IASST, Guwahati for their help and support. We would also like to acknowledge Institutional Biotech- Hub (IBH) of Bimala Prasad Chaliha College, for the support in writing this paper.
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Deka, M.J., Chowdhury, D. & Nath, B.K. Recent development of modified fluorescent carbon quantum dots-based fluorescence sensors for food quality assessment. Carbon Lett. 32, 1131–1149 (2022). https://doi.org/10.1007/s42823-022-00347-5
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DOI: https://doi.org/10.1007/s42823-022-00347-5