Characterising the impact of post‐treatment storage on chemistry and antimicrobial properties of plasma treated water derived from microwave and DBD sources

Characterising the impact of post‐treatment storage on chemistry and antimicrobial properties... INTRODUCTIONNon‐thermal atmospheric pressure plasma, referring to an ionized gas in which the free electrons are not at a thermal equilibrium with the heavy gas particles, can be generated using a wide array of different plasma devices and types of discharge. These include atmospheric pressure plasma jets, corona discharge, di‐electric barrier discharge (DBD) or microwave (MW) driven plasmas, with the resulting plasma containing charged particles (electrons, positive and negative ions), radicals, excited molecules, and photons.The exposure of water to plasma glow or afterglow introduces chemical changes in the liquid, notably a reduction in pH and an introduction of reactive oxygen (ROS) and/or reactive nitrogen species (RNS), with hydrogen peroxide, nitrite and nitrate being among the most commonly detected species due to their relative stability. Plasma treated water derives antimicrobial activity from the synergistic effects of the plasma generated reactive species and low pH and has demonstrated potential in decontamination of surfaces or food products as well as having potential for medical applications. While the reduction in pH is essential for antimicrobial effects, it has been demonstrated that neither HNO3 nor HNO2 at comparable pH level achieve the same effect. It has been proposed that unstable reactive species such as peroxynitrite http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Plasma Processes and Polymers Wiley

Characterising the impact of post‐treatment storage on chemistry and antimicrobial properties of plasma treated water derived from microwave and DBD sources

Loading next page...
 
/lp/wiley/characterising-the-impact-of-post-treatment-storage-on-chemistry-and-0YUDHH8Akh
Publisher
Wiley Subscription Services, Inc., A Wiley Company
Copyright
© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
ISSN
1612-8850
eISSN
1612-8869
D.O.I.
10.1002/ppap.201700127
Publisher site
See Article on Publisher Site

Abstract

INTRODUCTIONNon‐thermal atmospheric pressure plasma, referring to an ionized gas in which the free electrons are not at a thermal equilibrium with the heavy gas particles, can be generated using a wide array of different plasma devices and types of discharge. These include atmospheric pressure plasma jets, corona discharge, di‐electric barrier discharge (DBD) or microwave (MW) driven plasmas, with the resulting plasma containing charged particles (electrons, positive and negative ions), radicals, excited molecules, and photons.The exposure of water to plasma glow or afterglow introduces chemical changes in the liquid, notably a reduction in pH and an introduction of reactive oxygen (ROS) and/or reactive nitrogen species (RNS), with hydrogen peroxide, nitrite and nitrate being among the most commonly detected species due to their relative stability. Plasma treated water derives antimicrobial activity from the synergistic effects of the plasma generated reactive species and low pH and has demonstrated potential in decontamination of surfaces or food products as well as having potential for medical applications. While the reduction in pH is essential for antimicrobial effects, it has been demonstrated that neither HNO3 nor HNO2 at comparable pH level achieve the same effect. It has been proposed that unstable reactive species such as peroxynitrite

Journal

Plasma Processes and PolymersWiley

Published: Jan 1, 2018

Keywords: ; ; ; ; ;

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create lists to
organize your research

Export lists, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off