Effect of liquid-dissolved gas components on concentrations of the aqueous reactive oxygen and nitrogen species

Effect of liquid-dissolved gas components on concentrations of the aqueous reactive oxygen and nitrogen species
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液体溶解气体成分对水中活性氧和氮物质浓度的影响

DOI:
10.1063/1.5085258
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发表时间:
2019-06
影响因子:
3.2
通讯作者:
Xinpei Lu
Xinpei Lu
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Ying Yang;Zhiyu Li;Lanlan Nie;Xinpei Lu

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液体环境中发生的活性氧和氮(RONS)转化过程是等离子体生物医学应用和临床治疗过程中的关键问题。液体溶解的气体组分可以参与水性RONS的形成过程,这对于更好地理解水性RONS形成的化学机制非常重要。在本文中,首次使用具有五种不同气体成分(未处理的DDW、不含空气的DDW、含O2的DDW、含N2的DDW和含CO2的DDW)的双蒸水(DDW)进行实验,以帮助系统地了解水性RONS与不同液体溶解气体的反应机理。研究发现,溶解的 O2 的存在有利于羟基的形成,而 CO2 在某种程度上不利于羟基的形成。溶解的O2和CO2都有利于过氧化氢和亚硝酸盐的形成,但CO2的作用稍强。此外,它们对硝酸盐的形成也有类似的影响。氮气对羟基、亚硝酸盐、硝酸盐的形成有一定的促进作用。总之,液体溶解的气体含量在水性RONS的形成中起着重要作用。液体环境中发生的活性氧和氮物种(RONS)转化过程是等离子体生物医学应用和临床治疗过程中的关键问题。液体溶解的气体组分可以参与水性RONS的形成过程,这对于更好地理解水性RONS形成的化学机制非常重要。在本文中,首次使用具有五种不同气体成分(未处理的DDW、不含空气的DDW、含O2的DDW、含N2的DDW和含CO2的DDW)的双蒸水(DDW)进行实验,以帮助系统地了解水性RONS与不同液体溶解气体的反应机理。研究发现,溶解的 O2 的存在有利于羟基的形成,而 CO2 在某种程度上不利于羟基的形成。溶解的O2和CO2都有利于过氧化氢和亚硝酸盐的形成,但CO2的作用稍强。此外,它们对格式都有相似的影响...
The reactive oxygen and nitrogen species (RONS) conversion process occurring in a liquid environment is a key issue in plasma biomedical applications and clinical treatment processes. The liquid-dissolved gas components could participate in the aqueous RONS forming process, which is very important for better understanding the chemical mechanism of the aqueous RONS formation. In this article, double distilled water (DDW) with five different gas compositions (unprocessed DDW, DDW without air, DDW with O2, DDW with N2, and DDW with CO2) is first used in experiments to help systematically understand the reaction mechanism of the aqueous RONS with different liquid-dissolved gases. It was found that the presence of dissolved O2 favored the formation of hydroxyl, while CO2 was somewhat detrimental to the formation of hydroxyl. Both dissolved O2 and CO2 are beneficial to the formation of hydrogen peroxide and nitrite, but the effect of CO2 is slightly stronger. Also, they both have a similar effect on the formation of nitrate. Nitrogen has a certain promoting effect on the formation of hydroxyl, nitrite, and nitrate. In summary, the liquid-dissolved gas contents play important roles in the formation of the aqueous RONS.The reactive oxygen and nitrogen species (RONS) conversion process occurring in a liquid environment is a key issue in plasma biomedical applications and clinical treatment processes. The liquid-dissolved gas components could participate in the aqueous RONS forming process, which is very important for better understanding the chemical mechanism of the aqueous RONS formation. In this article, double distilled water (DDW) with five different gas compositions (unprocessed DDW, DDW without air, DDW with O2, DDW with N2, and DDW with CO2) is first used in experiments to help systematically understand the reaction mechanism of the aqueous RONS with different liquid-dissolved gases. It was found that the presence of dissolved O2 favored the formation of hydroxyl, while CO2 was somewhat detrimental to the formation of hydroxyl. Both dissolved O2 and CO2 are beneficial to the formation of hydrogen peroxide and nitrite, but the effect of CO2 is slightly stronger. Also, they both have a similar effect on the formati...
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发表时间: 2016-03
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DOI: 10.1126/science.1683005
发表时间: 1991-11-01
期刊: SCIENCE
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