Femtosecond laser synthesis and comparative analysis of fluorescent carbon dots from L-lysine aqueous solution

Laser synthesis of fluorescent species from biomolecules in living cells and tissues offers unique capabilities for fluorescent bioimaging, yet little is known about its mechanisms and characteristics of products. We examine synthesis of fluorescent products from water solution of L-lysine upon irra...

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Bibliographic Details
Published in:Journal of physics. Conference series 2021-12, Vol.2086 (1), p.12121
Main Authors: Astafiev, A A, Shakhov, A M, Gulin, A A, Vasin, A A, Gubina, M V, Syrchina, M S, Nadtochenko, V A
Format: Article
Language:English
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Summary:Laser synthesis of fluorescent species from biomolecules in living cells and tissues offers unique capabilities for fluorescent bioimaging, yet little is known about its mechanisms and characteristics of products. We examine synthesis of fluorescent products from water solution of L-lysine upon irradiation by trains of femtosecond laser pulses with varying parameters. We demonstrate that irradiation products contain nanoscale carbon-based fluorescent particles (carbon dots) with multi-colour and excitation-dependent emission. Morphology, chemical composition and fluorescent characteristics of irradiation products strongly depend on laser pulses parameters.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/2086/1/012121