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Carbon Quantum Dots Based on Marine Polysaccharides: Types, Synthesis, and Applications
Fernando G Torres1, Karen N Gonzales1, Omar P Troncoso1
1Department of Mechanical Engineering, Pontificia Universidad Católica del Perú, Av. Universitaria 1801, Lima 15088, Peru.
Marine Drugs
|June 27, 2023
Summary
Marine polysaccharides are versatile precursors for synthesizing carbon quantum dots (CQDs). These naturally doped CQDs offer eco-friendly synthesis and diverse applications in biomedicine and beyond.
Area of Science:
- Materials Science
- Nanotechnology
- Marine Biology
Background:
- Marine environments provide abundant polysaccharides like alginate and chitin.
- These polysaccharides are rich in carbon and heteroatoms (N, S, O).
- Marine polysaccharides serve as ideal precursors for synthesizing carbon quantum dots (CQDs).
Purpose of the Study:
- To review synthesis methods for CQDs derived from marine polysaccharides.
- To highlight the advantages of marine polysaccharides as CQD precursors.
- To explore the properties and applications of marine-derived CQDs.
Main Methods:
- Classification of synthesis methods based on polysaccharide origin (algae, crustaceans, fish).
- Discussion of techniques for synthesizing CQDs from various marine polysaccharides.
- Analysis of methods to tune CQD properties through precursor selection.
Main Results:
- Marine polysaccharides enable green synthesis of CQDs with natural heteroatom doping.
- CQDs synthesized exhibit tunable optical properties like high fluorescence and quantum yield.
- Properties can be adjusted by using multi-heteroatom marine precursors.
Conclusions:
- Marine polysaccharides are sustainable precursors for advanced nanomaterials.
- Marine-derived CQDs possess biocompatibility and low toxicity for diverse applications.
- This review provides insights for developing novel nanomaterials from marine resources.
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