The HelixJet, a plasma source operating under atmospheric pressure with RF power, was used for the synthesis of silicon nanoparticles (Si-NPs) in context relevance nanomedicine, sensor technology, and nanotechnology. HelixJet operated variety He/Ar/H2/SiH4 gas mixtures to characterize Si-NPs regard their size, crystallinity, structure, photoluminescence. Distinct varieties nanomaterials size ra...