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Plant Part-Derived Carbon Dots for Biosensing

Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
Department of Chemistry Education, Universitas Serambi Mekkah, Banda Aceh 23245, Indonesia
Advanced Multifunctional Materials Laboratory, Department of Chemistry, Faculty of Science, Assiut University, Assiut 71516, Egypt
Department of Pharmacy, Universitas Sam Ratulangi, Manado 95115, Indonesia
Department of Environmental Sciences, Osmania University, Hyderabad 500007, Telangana, India
Department of Chemistry, University of Dhaka, Dhaka 1000, Bangladesh
Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan
Department of Chemistry, National Sun Yat-sen University, Kaohsiung 80724, Taiwan
Authors to whom correspondence should be addressed.
Biosensors 2020, 10(6), 68;
Received: 22 May 2020 / Revised: 12 June 2020 / Accepted: 15 June 2020 / Published: 17 June 2020
(This article belongs to the Section Biosensor Materials)
Carbon dots (CDs) are a new cluster of carbon atoms with particle size less than 10 nm. CDs also exhibit interesting fluorescence (FL) properties. CDs are attractive because of their fascinating characteristics including low toxicity, good water solubility, and tremendous biocompatibility. Recently, CDs have been investigated as biosensors for numerous target analytes. Meanwhile, the utilization of cheap and renewable natural resources not only fulfills the pressing requirement for the large-scale synthesis of CDs but also encourages the establishment of sustainable applications. The preparation of CDs using natural resources, i.e., plants, offers several advantages as it is inexpensive, eco-friendly, and highly available in the surroundings. Plant parts are readily available natural resources as the starting materials to produce CDs with different characteristics and attractive applications. Several review articles are now available covering the synthesis, properties, and applications of CDs. However, there is no specific and focused review literature discussing plant part-derived CDs for biosensing applications. To handle this gap, we provide a review of the progress of CDs derived from various plant parts with their synthesis methods, optical properties, and biosensing applications in the last five years. We highlight the synthesis methods and then give an overview of their optical properties and applications as biosensors for various biomolecules and molecules in biological samples. Finally, we discuss some future perspectives for plant part-derived CDs for better material development and applications. View Full-Text
Keywords: carbon dots; plant parts; natural resources; optical properties; biosensing; biomolecules; molecules; biological samples carbon dots; plant parts; natural resources; optical properties; biosensing; biomolecules; molecules; biological samples
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MDPI and ACS Style

Zulfajri, M.; Abdelhamid, H.N.; Sudewi, S.; Dayalan, S.; Rasool, A.; Habib, A.; Huang, G.G. Plant Part-Derived Carbon Dots for Biosensing. Biosensors 2020, 10, 68.

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