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23 February 2018 Bare laser-synthesized Si nanoparticles as functional elements for chitosan nanofiber-based tissue engineering platforms
Anton A. Popov, Ahmed Al-Kattan, Viraj P. Nirwan, Emilie Munnier, Gleb I. Tselikov, Yury V. Ryabchikov, Igor Chourpa, Amir Fahmi, A. V. Kabashin
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Abstract
Methods of femtosecond laser ablation were used to fabricate bare (ligand-free) silicon (Si) nanoparticles in deionized water. The nanoparticles were round in shape, crystalline, free of any impurities, and water-dissolvable, while the dissolution rate depended on the concentration of oxygen defects in their composition. The nanoparticles were then eletrospun with chitosan to form nanoparticle decorated nanofibrous matrices. We found that the functionalization of nanofibers by the nanoparticles can affect the morphology and physico-chemical characteristics of resulting nanostructures. In particular, the presence of Si nanoparticles led to the reduction of fibers thickness, suggesting a potential improvement of fiber’s surface reactivity. We also observed the improvement of thermal stability of hybrid nanofibers. We believe that the incorporated Si nanoparticles can serve as functional elements to improve characteristics of chitosan-based matrices for cellular growth, as well as to enable novel imaging or therapeutic functionalities for tissue engineering applications.
Conference Presentation
© (2018) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Anton A. Popov, Ahmed Al-Kattan, Viraj P. Nirwan, Emilie Munnier, Gleb I. Tselikov, Yury V. Ryabchikov, Igor Chourpa, Amir Fahmi, and A. V. Kabashin "Bare laser-synthesized Si nanoparticles as functional elements for chitosan nanofiber-based tissue engineering platforms", Proc. SPIE 10521, Synthesis and Photonics of Nanoscale Materials XV, 105210A (23 February 2018); https://doi.org/10.1117/12.2295196
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Cited by 2 scholarly publications.
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KEYWORDS
Silicon

Nanoparticles

Nanofibers

Polymers

Tissue engineering

Laser ablation

Raman spectroscopy

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