Plasma and Nano put novel biomaterials into life (Vol. 48 No. 1)

Example of the sophisticated plasma+nano process: plasma and nano work together to produce biocompatible system of silver nanowires in nanoporous membrane.

Low-temperature plasma, i.e. ionized gas produced by electric discharges in gas or liquid, is a powerful tool for fabricating novel biocompatible nanomaterials.

Typically, complex nanomaterials are produced using chemistry-based techniques. They are cheap and efficient, and could be further utilized to fabricate nanomaterials vitally needed for novel devices. However, emerging applications require a new generation of nanomaterials to boost their characteristics and occupy devoted application niches. The low-temperature plasma could play a pivotal role in the nanosynthesis of immense complexity. This review paper reveals advantages of approaches based on the plasma environment to fabricate nanoscaled biomaterials exhibiting very high biological activity, biological inertness, and other features of the biomaterials capable of making them highly attractive. Plasma-assisted fabrication of gold and silicon nanoparticles for bio-applications; carbon nanoparticles for cancer therapy; carbon nanotube-based platforms for enzyme production and bacteria growth control; and other applications of low-temperature plasmas in the production of biologically-active materials were discussed. The effect of plasmas have led to better results, as compared with the conventional neutral-gas based methods.

I. Levchenko, M. Keidar, U. Cvelbar, D. Mariotti, A. Mai-Prochnow, J. Fang and K. Ostrikov, Novel biomaterials: plasma-enabled nanostructures and functions. Topical Review, J. Phys. D: Appl. Phys. 49, 273001 (2016).