Mingze Dang, Yiqian Li, Lanlan Nie, Feng Zhao, Shaohui Jin, Xi Chen, Xinpei Lu, Lu Gan
In this study, a portable plasma generator produced large‐area air plasma for treating infected wounds in BALB/c mice. Different plasma treatment times (30 s, 1 min, 3 min, and 4.5 min) were applied daily until the wounds healed completely. Results showed reduced inflammation and increased vascular endothelial growth factor (VEGF) expression in tissues treated for 1 and 3 min, promoting blood vessel proliferation and collagen fiber synthesis. However, treatment for 30 s and 4.5 min worsened inflammation and decreased VEGF expression. Overall, a 1‐min treatment was the most effective in promoting wound healing. Cold plasma shows promise for healing infected wounds, with treatment duration being a crucial factor.
{"title":"Vivo application of a portable plasma generator in infected wound healing","authors":"Mingze Dang, Yiqian Li, Lanlan Nie, Feng Zhao, Shaohui Jin, Xi Chen, Xinpei Lu, Lu Gan","doi":"10.1002/ppap.202400071","DOIUrl":"https://doi.org/10.1002/ppap.202400071","url":null,"abstract":"In this study, a portable plasma generator produced large‐area air plasma for treating infected wounds in BALB/c mice. Different plasma treatment times (30 s, 1 min, 3 min, and 4.5 min) were applied daily until the wounds healed completely. Results showed reduced inflammation and increased vascular endothelial growth factor (VEGF) expression in tissues treated for 1 and 3 min, promoting blood vessel proliferation and collagen fiber synthesis. However, treatment for 30 s and 4.5 min worsened inflammation and decreased VEGF expression. Overall, a 1‐min treatment was the most effective in promoting wound healing. Cold plasma shows promise for healing infected wounds, with treatment duration being a crucial factor.","PeriodicalId":20135,"journal":{"name":"Plasma Processes and Polymers","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141546979","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Andris Martinovs, Andris Martinovs, Gita Rēvalde, Diāna Dombrovska, Guntis Koļčs, Rasma Tretjakova, Edgars Zaicevs
A study of the grain surface structure and seedling development of wheat, barley, oats, and rye depending on short‐term treatment of their grains in Ar–O2 and Ar–air cold plasma and post‐discharge with a perspective of implementation of the method on an industrial scale is presented. Following parameters are monitored: chemical composition of plasma, grain surface roughness, germination rate, seed germination, length of seedlings, dry mass of stems and roots, as well as vigor index II. The results show that even an 8.7‐s‐long treatment of grains in postdischarge can improve the root system of seedlings, increasing its mass up to 16.2% (barley), 15.6% (rye), and 14.3% (wheat) within the first 10 days after sowing.
{"title":"Effect of short‐term treatment of some cereal grains with atmospheric pressure Ar–O2 and Ar–air plasma","authors":"Andris Martinovs, Andris Martinovs, Gita Rēvalde, Diāna Dombrovska, Guntis Koļčs, Rasma Tretjakova, Edgars Zaicevs","doi":"10.1002/ppap.202400093","DOIUrl":"https://doi.org/10.1002/ppap.202400093","url":null,"abstract":"A study of the grain surface structure and seedling development of wheat, barley, oats, and rye depending on short‐term treatment of their grains in Ar–O<jats:sub>2</jats:sub> and Ar–air cold plasma and post‐discharge with a perspective of implementation of the method on an industrial scale is presented. Following parameters are monitored: chemical composition of plasma, grain surface roughness, germination rate, seed germination, length of seedlings, dry mass of stems and roots, as well as vigor index II. The results show that even an 8.7‐s‐long treatment of grains in postdischarge can improve the root system of seedlings, increasing its mass up to 16.2% (barley), 15.6% (rye), and 14.3% (wheat) within the first 10 days after sowing.","PeriodicalId":20135,"journal":{"name":"Plasma Processes and Polymers","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141569945","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
As an alternative disinfection technology, air plasma is limited to achieve wider application due to its restricted disinfection level and hazardous by‐products including O3 and NOx. In this work, a time‐sharing synergy strategy is proposed, where NO and NO2 are first generated by a dielectric barrier discharge reactor in NOx mode, and then the discharge is switched into O3 mode by increasing flowrate, thus producing large amounts of high‐valence NOx for efficient disinfection in sealed space. The disinfection effect of time‐sharing synergy is about 2 logs higher than using single O3 or NOx mode with the same discharge power. The concentration of high‐valence NOx is highly correlated with disinfection effect. Finally, all disinfection ingredients are removed after 2‐min gas‐washing and heating.
{"title":"Time‐sharing synergy of NOx mode and O3 mode air discharges for efficient and pollution‐free disinfection","authors":"Zifeng Wang, Luge Wang, Pengfei Zhang, Dingxin Liu, Yue Feng, Qiuyi Yue, Yujie He, Shenghang Xu, Xiangyu Wang, Dandan Pei, Jishen Zhang, Li Guo, Mingzhe Rong","doi":"10.1002/ppap.202400083","DOIUrl":"https://doi.org/10.1002/ppap.202400083","url":null,"abstract":"As an alternative disinfection technology, air plasma is limited to achieve wider application due to its restricted disinfection level and hazardous by‐products including O<jats:sub>3</jats:sub> and NO<jats:sub>x</jats:sub>. In this work, a time‐sharing synergy strategy is proposed, where NO and NO<jats:sub>2</jats:sub> are first generated by a dielectric barrier discharge reactor in NO<jats:sub>x</jats:sub> mode, and then the discharge is switched into O<jats:sub>3</jats:sub> mode by increasing flowrate, thus producing large amounts of high‐valence NO<jats:sub>x</jats:sub> for efficient disinfection in sealed space. The disinfection effect of time‐sharing synergy is about 2 logs higher than using single O<jats:sub>3</jats:sub> or NO<jats:sub>x</jats:sub> mode with the same discharge power. The concentration of high‐valence NO<jats:sub>x</jats:sub> is highly correlated with disinfection effect. Finally, all disinfection ingredients are removed after 2‐min gas‐washing and heating.","PeriodicalId":20135,"journal":{"name":"Plasma Processes and Polymers","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141569944","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sander Bekeschus, Henry Skowski, Veronika Hahn, Robert Bansemer, Torsten Gerling, Klaus‐Dieter Weltmann, Thomas von Woedtke
Spurred by global COVID‐19, work in recent years has demonstrated that various devices based on technology generating cold plasma are capable of reducing the infectivity of virus particles. There is great potential in this approach, which is, however, hampered by the ability of most cold plasma science laboratories to test for antiviral effects of their individual plasma sources in sophisticated mammalian cell test systems. To this end, we developed a quick, simple, and fast assay system based on bacteriophages and their ability to lyse bacterial hosts, which can be monitored in readily available microplate readers. We successfully demonstrated the principal ability of this approach using two types of plasma jets, different microplate readers, and two different bacteriophage strains.
{"title":"A fast and reliable microplate reader assay to assess the antiviral efficacy of cold plasma devices","authors":"Sander Bekeschus, Henry Skowski, Veronika Hahn, Robert Bansemer, Torsten Gerling, Klaus‐Dieter Weltmann, Thomas von Woedtke","doi":"10.1002/ppap.202400104","DOIUrl":"https://doi.org/10.1002/ppap.202400104","url":null,"abstract":"Spurred by global COVID‐19, work in recent years has demonstrated that various devices based on technology generating cold plasma are capable of reducing the infectivity of virus particles. There is great potential in this approach, which is, however, hampered by the ability of most cold plasma science laboratories to test for antiviral effects of their individual plasma sources in sophisticated mammalian cell test systems. To this end, we developed a quick, simple, and fast assay system based on bacteriophages and their ability to lyse bacterial hosts, which can be monitored in readily available microplate readers. We successfully demonstrated the principal ability of this approach using two types of plasma jets, different microplate readers, and two different bacteriophage strains.","PeriodicalId":20135,"journal":{"name":"Plasma Processes and Polymers","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141546981","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jia‐Rui Liu, Xiao‐Kun Wang, Li Wang, Kai Zhao, Yong‐Xin Liu, Yuan‐Hong Song, You‐Nian Wang
A magnetized capacitively coupled oxygen plasma was studied synergistically using phase resolved optical emission spectroscopy and particle‐based kinetic simulation. Discharge mode transitions from ambipolar mode into drift mode and finally into α mode induced by increasing the magnetic field were observed at different driving frequencies and different electrode gaps. The simulation results demonstrate that the discharge operating in the same mode exhibits a similar degree of electronegativity. By increasing driving frequency or electrode gap, the same discharge mode transition tends to occur at a lower magnetic field, and, meanwhile, the high electric field and electron power absorption shift from the bulk region to the sheath edge.
{"title":"An experimental and computational investigation of discharge mode transitions in a partially magnetized radio frequency capacitively coupled oxygen discharge","authors":"Jia‐Rui Liu, Xiao‐Kun Wang, Li Wang, Kai Zhao, Yong‐Xin Liu, Yuan‐Hong Song, You‐Nian Wang","doi":"10.1002/ppap.202300219","DOIUrl":"https://doi.org/10.1002/ppap.202300219","url":null,"abstract":"A magnetized capacitively coupled oxygen plasma was studied synergistically using phase resolved optical emission spectroscopy and particle‐based kinetic simulation. Discharge mode transitions from ambipolar mode into drift mode and finally into α mode induced by increasing the magnetic field were observed at different driving frequencies and different electrode gaps. The simulation results demonstrate that the discharge operating in the same mode exhibits a similar degree of electronegativity. By increasing driving frequency or electrode gap, the same discharge mode transition tends to occur at a lower magnetic field, and, meanwhile, the high electric field and electron power absorption shift from the bulk region to the sheath edge.","PeriodicalId":20135,"journal":{"name":"Plasma Processes and Polymers","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141546986","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Evgeniy Yurevich Titov, Ivan Vasilevich Bodrikov, Alexander Leonidovich Vasiliev, Anna Gennadievna Ivanova, Andrey Leonidovich Golovin, Dmitry Alekseevich Shirokov, Yuriy Alekseevich Kurskii, Dmitry Yurievich Titov, Evgenia Ruslanovna Bodrikova
The constant growth in the share of renewable electricity and the need to reduce CO2 emissions create prospects for the development of non‐thermal plasma (NTP) pyrolysis of heavy oil. NTP pyrolysis requires only electricity and does not require heating of raw materials to high temperatures, which significantly reduces the carbon footprint during processing. This paper investigates the characteristics of NTP pyrolysis of vacuum gas oil under the action of electric microsecond discharges in the liquid phase, depending on the voltage of the current source 300–700 V to optimize energy consumption, conversion of raw materials, and increase the yield of commercial demand products.
{"title":"Low‐carbon pyrolysis of vacuum gas oil by non‐thermal plasma","authors":"Evgeniy Yurevich Titov, Ivan Vasilevich Bodrikov, Alexander Leonidovich Vasiliev, Anna Gennadievna Ivanova, Andrey Leonidovich Golovin, Dmitry Alekseevich Shirokov, Yuriy Alekseevich Kurskii, Dmitry Yurievich Titov, Evgenia Ruslanovna Bodrikova","doi":"10.1002/ppap.202400061","DOIUrl":"https://doi.org/10.1002/ppap.202400061","url":null,"abstract":"The constant growth in the share of renewable electricity and the need to reduce CO<jats:sub>2</jats:sub> emissions create prospects for the development of non‐thermal plasma (NTP) pyrolysis of heavy oil. NTP pyrolysis requires only electricity and does not require heating of raw materials to high temperatures, which significantly reduces the carbon footprint during processing. This paper investigates the characteristics of NTP pyrolysis of vacuum gas oil under the action of electric microsecond discharges in the liquid phase, depending on the voltage of the current source 300–700 V to optimize energy consumption, conversion of raw materials, and increase the yield of commercial demand products.","PeriodicalId":20135,"journal":{"name":"Plasma Processes and Polymers","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141546983","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Cold physical plasma, a partially ionized gas, has been shown to be effective in treating chronic wounds and cancer. However, there is limited research on plasma exposure of leukemia cell lines, such as chronic lymphocytic leukemia (CLL) and cytotoxic CD8+ T cells. To investigate the potential proimmunogenic effects of plasma‐derived reactive oxygen species, cytotoxic T cells were isolated from CLL patients and healthy volunteers. Extensive cold plasma treatment reduced T‐cell metabolic activity and viability in both diseased and healthy groups. Plasma treatment of cocultures, but not CD8+ T‐cell monocultures, spurred cytotoxic T‐cell proliferation, possibly due to plasma‐enhanced CLL antigen display and plasma‐mediated modulation of immunoregulatory surface molecules. Further studies are needed to understand the mechanisms and clinical relevance of these findings.
冷物理等离子体是一种部分电离的气体，已被证明可有效治疗慢性伤口和癌症。然而，有关白血病细胞系（如慢性淋巴细胞白血病（CLL）和细胞毒性 CD8+ T 细胞）暴露于等离子体的研究却很有限。为了研究血浆源性活性氧的潜在促免疫效应，研究人员从 CLL 患者和健康志愿者身上分离出细胞毒性 T 细胞。在患病组和健康组中，广泛的冷血浆处理降低了 T 细胞的代谢活性和存活率。等离子处理共培养物（而非 CD8+ T 细胞单培养物）可刺激细胞毒性 T 细胞增殖，这可能是由于等离子增强了 CLL 抗原显示和等离子介导的免疫调节表面分子调节。要了解这些发现的机制和临床意义，还需要进一步的研究。
{"title":"Cold plasma treatment of patient‐derived chronic lymphocytic B‐cell leukemia enhances cytotoxic T‐cell proliferation","authors":"Monireh Golpour, Hossein Asgarian‐Omran, Haleh Akhavan‐Niaki, Mina Alimohammadi, Maryam Alizadeh‐Forutan, Farshad Sohbatzadeh, Sander Bekeschus, Alireza Rafiei","doi":"10.1002/ppap.202400008","DOIUrl":"https://doi.org/10.1002/ppap.202400008","url":null,"abstract":"Cold physical plasma, a partially ionized gas, has been shown to be effective in treating chronic wounds and cancer. However, there is limited research on plasma exposure of leukemia cell lines, such as chronic lymphocytic leukemia (CLL) and cytotoxic CD8<jats:sup>+</jats:sup> T cells. To investigate the potential proimmunogenic effects of plasma‐derived reactive oxygen species, cytotoxic T cells were isolated from CLL patients and healthy volunteers. Extensive cold plasma treatment reduced T‐cell metabolic activity and viability in both diseased and healthy groups. Plasma treatment of cocultures, but not CD8<jats:sup>+</jats:sup> T‐cell monocultures, spurred cytotoxic T‐cell proliferation, possibly due to plasma‐enhanced CLL antigen display and plasma‐mediated modulation of immunoregulatory surface molecules. Further studies are needed to understand the mechanisms and clinical relevance of these findings.","PeriodicalId":20135,"journal":{"name":"Plasma Processes and Polymers","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141546984","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This work compared C4F8 and C4H2F6 gases (as third components in CF4 + He gas mixture) for the high aspect ratio etching of SiO2 through the amorphous carbon layer (ACL) mask. The research scheme included the study of gas‐phase plasma characteristics, etching kinetics, and etching profiles. It was found that CF4 + C4F8 + He and CF4 + C4H2F6 + He gas mixtures are featured by quite close plasma parameters, the kinetics of electron‐impact processes, and ion bombardment intensities. At the same, the use of C4H2F6 provides a bit lower F atom density together with a bit higher polymerizing ability. All these factors cause lower absolute etching rates for both SiO2 and ACL but provide better SiO2/ACL/ACL selectivity and profile features.
这项研究比较了 C4F8 和 C4H2F6 气体（作为 CF4 + He 混合气体中的第三种成分）在通过无定形碳层 (ACL) 掩膜对 SiO2 进行高纵横比蚀刻时的效果。研究方案包括气相等离子体特性、蚀刻动力学和蚀刻曲线的研究。研究发现，CF4 + C4F8 + He 和 CF4 + C4H2F6 + He 混合气体的等离子体参数、电子撞击过程动力学和离子轰击强度非常接近。同时，C4H2F6 的 F 原子密度稍低，聚合能力稍强。所有这些因素都会降低二氧化硅和 ACL 的绝对蚀刻率，但却能提供更好的二氧化硅/ACL/ACL 选择性和剖面特征。
{"title":"Comparative study of CF4 + X + He (X = C4F8 or C4H2F6) plasmas for high aspect ratio etching of SiO2 with ACL mask","authors":"Gilyoung Choi, Alexander Efremov, Kwang‐Ho Kwon","doi":"10.1002/ppap.202400046","DOIUrl":"https://doi.org/10.1002/ppap.202400046","url":null,"abstract":"This work compared C<jats:sub>4</jats:sub>F<jats:sub>8</jats:sub> and C<jats:sub>4</jats:sub>H<jats:sub>2</jats:sub>F<jats:sub>6</jats:sub> gases (as third components in CF<jats:sub>4</jats:sub> + He gas mixture) for the high aspect ratio etching of SiO<jats:sub>2</jats:sub> through the amorphous carbon layer (ACL) mask. The research scheme included the study of gas‐phase plasma characteristics, etching kinetics, and etching profiles. It was found that CF4 + C4F8 + He and CF4 + C4H2F6 + He gas mixtures are featured by quite close plasma parameters, the kinetics of electron‐impact processes, and ion bombardment intensities. At the same, the use of C<jats:sub>4</jats:sub>H<jats:sub>2</jats:sub>F<jats:sub>6</jats:sub> provides a bit lower F atom density together with a bit higher polymerizing ability. All these factors cause lower absolute etching rates for both SiO<jats:sub>2</jats:sub> and ACL but provide better SiO<jats:sub>2</jats:sub>/ACL/ACL selectivity and profile features.","PeriodicalId":20135,"journal":{"name":"Plasma Processes and Polymers","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141546987","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ha Young Choi, Seong Chan Kang, Sang Jun Park, Hee Il Yoo, Sang‐Woo Jeon, Tae‐Hwan Kim, Se Youn Moon
Polyimide (PI) surfaces coated with and without boron nitride nanotubes (BNNTs) were treated using an atmospheric‐pressure cold plasma in open air. This treatment increased the surface wettability of the PI, measured by a decrease in water contact angle from 68° to 16°, resulting in a more uniform BNNT coating and improved surface adhesion. The plasma treatment of the BNNT‐coated PI surfaces also effectively removed residual polymer surfactants used for BNNT dispersion in water, without causing any thermal damage due to the low plasma and PI's surface temperatures of 350 and 300 K, respectively. The reactive oxygen species in the plasma, such as hydroxyl molecules and oxygen atoms, played an important role in these processes. Atmospheric‐pressure plasma can be employed in various applications in which thermally weak polymer‐based substrates are coated with BNNTs.
使用常压冷等离子体在露天处理涂有和未涂有氮化硼纳米管（BNT）的聚酰亚胺（PI）表面。这种处理方法提高了 PI 表面的润湿性（以水接触角从 68° 减小到 16° 来衡量），使 BNNT 涂层更加均匀，表面附着力得到改善。等离子处理 BNNT 涂层 PI 表面还能有效去除用于 BNNT 在水中分散的残留聚合物表面活性剂，由于等离子和 PI 表面温度分别为 350 和 300 K，因此不会造成任何热损伤。等离子体中的活性氧（如羟基分子和氧原子）在这些过程中发挥了重要作用。常压等离子体可用于在热弱聚合物基底上涂覆 BNNTs 的各种应用中。
{"title":"Multifunctional surface treatment of boron nitride nanotube‐coated polyimide films with atmospheric‐pressure cold plasma","authors":"Ha Young Choi, Seong Chan Kang, Sang Jun Park, Hee Il Yoo, Sang‐Woo Jeon, Tae‐Hwan Kim, Se Youn Moon","doi":"10.1002/ppap.202400031","DOIUrl":"https://doi.org/10.1002/ppap.202400031","url":null,"abstract":"Polyimide (PI) surfaces coated with and without boron nitride nanotubes (BNNTs) were treated using an atmospheric‐pressure cold plasma in open air. This treatment increased the surface wettability of the PI, measured by a decrease in water contact angle from 68° to 16°, resulting in a more uniform BNNT coating and improved surface adhesion. The plasma treatment of the BNNT‐coated PI surfaces also effectively removed residual polymer surfactants used for BNNT dispersion in water, without causing any thermal damage due to the low plasma and PI's surface temperatures of 350 and 300 K, respectively. The reactive oxygen species in the plasma, such as hydroxyl molecules and oxygen atoms, played an important role in these processes. Atmospheric‐pressure plasma can be employed in various applications in which thermally weak polymer‐based substrates are coated with BNNTs.","PeriodicalId":20135,"journal":{"name":"Plasma Processes and Polymers","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141503507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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