ROS from Physical Plasmas: Redox Chemistry for Biomedical Therapy

Author:

Privat-Maldonado Angela1ORCID,Schmidt Anke2,Lin Abraham13,Weltmann Klaus-Dieter2,Wende Kristian2ORCID,Bogaerts Annemie1,Bekeschus Sander2ORCID

Affiliation:

1. PLASMANT Research Group, University of Antwerp, Antwerp, Belgium

2. ZIK plasmatis, Leibniz Institute for Plasma Science and Technology (INP Greifswald), Greifswald, Germany

3. Center for Oncological Research, University of Antwerp, Antwerp, Belgium

Abstract

Physical plasmas generate unique mixes of reactive oxygen and nitrogen species (RONS or ROS). Only a bit more than a decade ago, these plasmas, operating at body temperature, started to be considered for medical therapy with considerably little mechanistic redox chemistry or biomedical research existing on that topic at that time. Today, a vast body of evidence is available on physical plasma-derived ROS, from their spatiotemporal resolution in the plasma gas phase to sophisticated chemical and biochemical analysis of these species once dissolved in liquids. Data fromin silicoanalysis dissected potential reaction pathways of plasma-derived reactive species with biological membranes, andin vitroandin vivoexperiments in cell and animal disease models identified molecular mechanisms and potential therapeutic benefits of physical plasmas. In 2013, the first medical plasma systems entered the European market as class IIa devices and have proven to be a valuable resource in dermatology, especially for supporting the healing of chronic wounds. The first results in cancer patients treated with plasma are promising, too. Due to the many potentials of this blooming new field ahead, there is a need to highlight the main concepts distilled from plasma research in chemistry and biology that serve as a mechanistic link between plasma physics (how and which plasma-derived ROS are produced) and therapy (what is the medical benefit). This inevitably puts cellular membranes in focus, as these are the natural interphase between ROS produced by plasmas and translation of their chemical reactivity into distinct biological responses.

Funder

Fonds Wetenschappelijk Onderzoek

Publisher

Hindawi Limited

Subject

Cell Biology,Aging,General Medicine,Biochemistry

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