使用氦气喷射等离子体在等离子体面向液体系统中生成水性化学物质的特征。

IF 2.5 4区 化学 Q2 CHEMISTRY, MULTIDISCIPLINARY
Joo Young Park, Jin Hee Bae, Seunghun Lee
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引用次数: 0

摘要

面向等离子体的液体(PFL)有利于储存活性 O 和 N 物种(RONS),包括 H2O2 和 NO2-,这些物质在等离子体处理后仍留在 PFL 中,并能持续影响浸入液体中的目标。然而,它们的行为以及生成和熄灭水平在很大程度上取决于等离子体特性和液体条件。因此,有必要了解液体类型对等离子体放电特性和等离子体放电产生的 RONS 的影响。我们比较了去离子水和高传导性 PFL RPMI 1640 的 RONS 生成和储存趋势。RPMI 1640 可充当电极,通过提供丰富的自由基和 RONS 来增强等离子体放电功率。气态羟基自由基和 NO 的产生明显增加,在最初的 200 秒内促进了 PFL 中 H2O2 和 NO2 的产生,随后 RONS 浓度的增加停滞。在贮存方面,由于 RMPI 1640 中的成分与 H2O2 反应的反应常数较高,H2O2 在 2O2 中消除完毕,PFL 中的 NO2 - 浓度保持不变。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Characteristics of Aqueous Chemical Species Generation in Plasma-Facing Liquid Systems Using Helium Jet Plasma

Characteristics of Aqueous Chemical Species Generation in Plasma-Facing Liquid Systems Using Helium Jet Plasma

Characteristics of Aqueous Chemical Species Generation in Plasma-Facing Liquid Systems Using Helium Jet Plasma

Plasma-facing liquids (PFLs) facilitate the storage of reactive O and N species (RONS), including H2O2 and NO2, which remain in the PFL after plasma treatment, and they can continuously influence the target immersed in the liquid. However, their behaviors and levels of generation and extinction depend strongly on the plasma characteristics and liquid condition. Therefore, understanding the effects of the liquid type on the plasma discharge characteristics and the RONS generated via plasma discharge is necessary. We compared the RONS generation and storage trends of deionized H2O and a high-conductivity PFL, RPMI 1640, which is a well-known cell culture medium commonly used to culture mammalian cells. RPMI 1640 acted as an electrode and enhanced the plasma discharge power by supplying abundant radicals and RONS. The production of gaseous hydroxyl radicals and NO markedly increased, which facilitated H2O2 and NO2 production in the PFL for the first 200 s, and then the increase in the RONS concentration stagnated. With respect to storage, as the components within RMPI 1640 exhibited high reaction constants for their reactions with H2O2, H2O2 elimination was completed in <30 min. Unlike H2O2, the concentration of NO2 in the PFL was unchanged.

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来源期刊
ChemistryOpen
ChemistryOpen CHEMISTRY, MULTIDISCIPLINARY-
CiteScore
4.80
自引率
4.30%
发文量
143
审稿时长
1 months
期刊介绍: ChemistryOpen is a multidisciplinary, gold-road open-access, international forum for the publication of outstanding Reviews, Full Papers, and Communications from all areas of chemistry and related fields. It is co-owned by 16 continental European Chemical Societies, who have banded together in the alliance called ChemPubSoc Europe for the purpose of publishing high-quality journals in the field of chemistry and its border disciplines. As some of the governments of the countries represented in ChemPubSoc Europe have strongly recommended that the research conducted with their funding is freely accessible for all readers (Open Access), ChemPubSoc Europe was concerned that no journal for which the ethical standards were monitored by a chemical society was available for such papers. ChemistryOpen fills this gap.
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