Plasmonic and Photothermal Effects of CuS Nanoparticles Biosynthesized from Acid Mine Drainage with Potential Drug Delivery Applications

In this work, the plasmonic and photothermal effects of CuS nanoparticles biosynthesized from acid mine drainage (AMD) were studied. CuS were formed by delivering the H2S generated by a sulfidogenic bioreactor to an off-line system containing the AMD. The precipitates collected after contact for an...

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Bibliographic Details
Published in:International journal of molecular sciences 2023-11, Vol.24 (22), p.16489
Main Authors: Escobar-Sánchez, Hernán, Carril Pardo, Claudio, Benito, Noelia, Hernández-Montelongo, Jacobo, Nancucheo, Iván, Recio-Sánchez, Gonzalo
Format: Article
Language:English
Subjects:
Acid mine drainage
Biocompatibility
Chemical synthesis
Copper
CuS nanoparticles
drug delivery
Drug delivery systems
Drugs
Energy consumption
Methods
Nanoparticles
Photocatalysis
photothermal
plasmon resonance
Vehicles
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Summary:In this work, the plasmonic and photothermal effects of CuS nanoparticles biosynthesized from acid mine drainage (AMD) were studied. CuS were formed by delivering the H2S generated by a sulfidogenic bioreactor to an off-line system containing the AMD. The precipitates collected after contact for an hour were washed and physico-chemically characterized, showing a nanoparticle with a mean diameter of 33 nm, crystalline nature and semiconductor behavior with a direct band gap of 2.2 eV. Moreover, the CuS nanoparticles exhibited localized surface plasmonic resonance in the near infrared range, with a high absorption band centered at 973 nm of wavelength, which allowed an increase in the temperature of the surrounding media under irradiation. Finally, the cytotoxicity of the CuS nanoparticles as well as their potential use as part of drug delivery platforms were investigated.
ISSN:1422-0067
1661-6596
1422-0067
DOI:10.3390/ijms242216489