Spectral characteristics of cotton seeds treated by a dielectric barrier discharge plasma

Abstract Cold atmospheric plasma has recently emerged as a simple, low-cost and efficient physical method for inducing significant biological responses in seeds and plants without the use of traditional, potentially environmentally-hazardous chemicals, fungicides or hormones. While the beneficial ef...

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Autores principales:	Xing-Quan Wang, Ren-Wu Zhou, Gerard de Groot, Kateryna Bazaka, Anthony B. Murphy, Kostya (Ken) Ostrikov
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/756950a460504befad4a90485f6625f6
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spelling	oai:doaj.org-article:756950a460504befad4a90485f6625f62021-12-02T16:08:23ZSpectral characteristics of cotton seeds treated by a dielectric barrier discharge plasma10.1038/s41598-017-04963-42045-2322https://doaj.org/article/756950a460504befad4a90485f6625f62017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-04963-4https://doaj.org/toc/2045-2322Abstract Cold atmospheric plasma has recently emerged as a simple, low-cost and efficient physical method for inducing significant biological responses in seeds and plants without the use of traditional, potentially environmentally-hazardous chemicals, fungicides or hormones. While the beneficial effects of plasma treatment on seed germination, disease resistance and agricultural output have been reported, the mechanisms that underpin the observed biological responses are yet to be fully described. This study employs Fourier Transform Infrared (FTIR) spectroscopy and emission spectroscopy to capture chemical interactions between plasmas and seed surfaces with the aim to provide a more comprehensive account of plasma−seed interactions. FTIR spectroscopy of the seed surface confirms plasma-induced chemical etching of the surface. The etching facilitates permeation of water into the seed, which is confirmed by water uptake measurements. FTIR of exhaust and emission spectra of discharges show oxygen-containing species known for their ability to stimulate biochemical processes and deactivate pathogenic microorganisms. In addition, water gas, CO2, CO and molecules containing −C(CH3)3− moieties observed in FTIR spectra of the exhaust gas during plasma treatment may be partly responsible for the plasma chemical etching of seed surface through oxidizing the organic components of the seed coat.Xing-Quan WangRen-Wu ZhouGerard de GrootKateryna BazakaAnthony B. MurphyKostya (Ken) OstrikovNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Xing-Quan Wang Ren-Wu Zhou Gerard de Groot Kateryna Bazaka Anthony B. Murphy Kostya (Ken) Ostrikov Spectral characteristics of cotton seeds treated by a dielectric barrier discharge plasma
description	Abstract Cold atmospheric plasma has recently emerged as a simple, low-cost and efficient physical method for inducing significant biological responses in seeds and plants without the use of traditional, potentially environmentally-hazardous chemicals, fungicides or hormones. While the beneficial effects of plasma treatment on seed germination, disease resistance and agricultural output have been reported, the mechanisms that underpin the observed biological responses are yet to be fully described. This study employs Fourier Transform Infrared (FTIR) spectroscopy and emission spectroscopy to capture chemical interactions between plasmas and seed surfaces with the aim to provide a more comprehensive account of plasma−seed interactions. FTIR spectroscopy of the seed surface confirms plasma-induced chemical etching of the surface. The etching facilitates permeation of water into the seed, which is confirmed by water uptake measurements. FTIR of exhaust and emission spectra of discharges show oxygen-containing species known for their ability to stimulate biochemical processes and deactivate pathogenic microorganisms. In addition, water gas, CO2, CO and molecules containing −C(CH3)3− moieties observed in FTIR spectra of the exhaust gas during plasma treatment may be partly responsible for the plasma chemical etching of seed surface through oxidizing the organic components of the seed coat.
format	article
author	Xing-Quan Wang Ren-Wu Zhou Gerard de Groot Kateryna Bazaka Anthony B. Murphy Kostya (Ken) Ostrikov
author_facet	Xing-Quan Wang Ren-Wu Zhou Gerard de Groot Kateryna Bazaka Anthony B. Murphy Kostya (Ken) Ostrikov
author_sort	Xing-Quan Wang
title	Spectral characteristics of cotton seeds treated by a dielectric barrier discharge plasma
title_short	Spectral characteristics of cotton seeds treated by a dielectric barrier discharge plasma
title_full	Spectral characteristics of cotton seeds treated by a dielectric barrier discharge plasma
title_fullStr	Spectral characteristics of cotton seeds treated by a dielectric barrier discharge plasma
title_full_unstemmed	Spectral characteristics of cotton seeds treated by a dielectric barrier discharge plasma
title_sort	spectral characteristics of cotton seeds treated by a dielectric barrier discharge plasma
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/756950a460504befad4a90485f6625f6
work_keys_str_mv	AT xingquanwang spectralcharacteristicsofcottonseedstreatedbyadielectricbarrierdischargeplasma AT renwuzhou spectralcharacteristicsofcottonseedstreatedbyadielectricbarrierdischargeplasma AT gerarddegroot spectralcharacteristicsofcottonseedstreatedbyadielectricbarrierdischargeplasma AT katerynabazaka spectralcharacteristicsofcottonseedstreatedbyadielectricbarrierdischargeplasma AT anthonybmurphy spectralcharacteristicsofcottonseedstreatedbyadielectricbarrierdischargeplasma AT kostyakenostrikov spectralcharacteristicsofcottonseedstreatedbyadielectricbarrierdischargeplasma
_version_	1718384537958875136

Spectral characteristics of cotton seeds treated by a dielectric barrier discharge plasma

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