Journal
JOURNAL OF MATERIALS CHEMISTRY B
Volume 1, Issue 19, Pages 2489-2495Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3tb20285b
Keywords
-
Categories
Funding
- French National Agency of Research (ANR)
- Ministry of Education and Science of the Russian Federation [16 552 11 7081]
- European Community [246331]
Ask authors/readers for more resources
An ultrashort laser-assisted method for fast production of concentrated aqueous solutions of ultrapure Si-based colloidal nanoparticles is reported. The method profits from the 3D geometry of femtosecond laser ablation of water-dispersed microscale colloids, prepared preliminarily by the mechanical milling of a Si wafer, in order to avoid strong concentration gradients in the ablated material and provide similar conditions of nanocluster growth within a relatively large laser caustics volume. We demonstrate the possibility for the fast synthesis of non-aggregated, low-size-dispersed, crystalline Si-based nanoparticles, whose size and surface oxidation can be controlled by changing the initial microcolloid concentration and the amount of dissolved oxygen in the water. Due to their much superior purity compared to the chemically synthesized counterparts and their photoluminescence response, the nanoparticles present the possibility for biological in vivo applications such as drug vectoring, imaging, and therapeutics.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available