Optical properties of carbon dots generated in liquid by pulsed IR laser at 1064 nm DOI
L. Torrisi, A. Torrisi,

Daniele Cosio

и другие.

Fullerenes Nanotubes and Carbon Nanostructures, Год журнала: 2024, Номер unknown, С. 1 - 14

Опубликована: Ноя. 11, 2024

Biocompatible carbon dots (CDs) have been synthesized by the laser ablation of graphite and vegetable (charcoal) placed in a phosphate-buffered saline (PBS) solution. The nanoparticles are produced pulsed IR beam, operating at 1064 nm, 100 mJ energy, 3 ns pulse duration, interacting with matrix liquid 0.2 Hz repetition rate. rate, terms removed mass per shot, was evaluated to be about 75.8 ng/pulse 758 for charcoal, respectively. Optical electronic microscopy, UV-Vis spectroscopy, luminescence measurements were employed evince CDs dispersion through its photoluminescence emission. UV excitation 365 nm wavelength induces visible region, as result electron transition, band depending on spot size, i.e., fluence. emission obtained from charcoal is independent fluence, showing major peak around 475 secondary 515 nm. depends minor band, 474 high fluences 670 low biocompatible solution finds many applications bio-medical field, will presented discussed.

Язык: Английский

Optical properties of carbon dots generated in liquid by pulsed IR laser at 1064 nm DOI
L. Torrisi, A. Torrisi,

Daniele Cosio

и другие.

Fullerenes Nanotubes and Carbon Nanostructures, Год журнала: 2024, Номер unknown, С. 1 - 14

Опубликована: Ноя. 11, 2024

Biocompatible carbon dots (CDs) have been synthesized by the laser ablation of graphite and vegetable (charcoal) placed in a phosphate-buffered saline (PBS) solution. The nanoparticles are produced pulsed IR beam, operating at 1064 nm, 100 mJ energy, 3 ns pulse duration, interacting with matrix liquid 0.2 Hz repetition rate. rate, terms removed mass per shot, was evaluated to be about 75.8 ng/pulse 758 for charcoal, respectively. Optical electronic microscopy, UV-Vis spectroscopy, luminescence measurements were employed evince CDs dispersion through its photoluminescence emission. UV excitation 365 nm wavelength induces visible region, as result electron transition, band depending on spot size, i.e., fluence. emission obtained from charcoal is independent fluence, showing major peak around 475 secondary 515 nm. depends minor band, 474 high fluences 670 low biocompatible solution finds many applications bio-medical field, will presented discussed.

Язык: Английский

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