Zhishang Wang, Xinlei Liang, Dongxue Feng, Jiang Wu, Di Dou, Huihui Wan, Weifeng Liu, Dongping Liu
{"title":"The Inactivation of E. coli and B. subtilis Spores Treated Individually, Sequentially and Simultaneously with Humified Air Dielectric Barrier Discharge Plasma and Ultraviolet","authors":"Zhishang Wang, Xinlei Liang, Dongxue Feng, Jiang Wu, Di Dou, Huihui Wan, Weifeng Liu, Dongping Liu","doi":"10.1007/s11090-024-10524-1","DOIUrl":"10.1007/s11090-024-10524-1","url":null,"abstract":"<div><p>The objective of this study was to evaluate the efficacy of humified air dielectric barrier discharge cold plasma (CP) and ultraviolet (UV) at a wavelength of 254 nm in inactivating <i>Escherichia coli</i> (<i>E. coli</i>) and <i>Bacillus subtilis</i> spores (<i>B. subtilis</i> spores). The experimental results showed that simultaneous treatment with CP and UV had the highest antimicrobial activity, followed by sequential and individual treatments. Individual treatment of CP and UV for 10 s decreased <i>E. coli</i> by 2.4 Logs and 1.3 Logs, respectively. After 60 s of CP and UV treatment, <i>B. subtilis</i> spores were decreased by 2.6 Logs and 1.1 Logs, respectively. Simultaneous treatment of CP and UV for 10 s reduced <i>E. coli</i> by 4.6 Logs and <i>B. subtilis</i> spores by 4.4 Logs after 60 s, which was attributed to their synergistic effects. To elucidate the mechanism of protein oxidation in simultaneous treatments, we investigated the chemical stability of simultaneous treatments with CP and UV on 11 amino acids and 4 nucleobases in aqueous solution. Phenylalanine (Phe), methionine (Met), tyrosine (Tyr), tryptophan (Trp), and histidine (His) were oxidized by plasma-generated reactive oxygen and nitrogen species. In addition, guanine (G) and thymine (T) exhibited structural instability; both the five- membered and six-membered rings of guanine can be oxidized, and thymine undergoes oxidative cross-linking by UV-induced formation of thymine dimers. The analysis showed that the chemical instability of amino acids and nucleobases was closely related to the synergistic inactivation effect of CP and UV.</p></div>","PeriodicalId":734,"journal":{"name":"Plasma Chemistry and Plasma Processing","volume":"45 1","pages":"255 - 278"},"PeriodicalIF":2.6,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142941142","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}
{"title":"Experimental and 2D Fluid Simulation of a Negative Nanosecond Discharge in Air Above a Liquid Surface with Different Dielectric Permittivity and Electrical Conductivity","authors":"Antoine Herrmann, Joëlle Margot, Ahmad Hamdan","doi":"10.1007/s11090-024-10525-0","DOIUrl":"10.1007/s11090-024-10525-0","url":null,"abstract":"<div><p>Plasma–liquid interaction remains a crucial phenomenon influencing numerous applications. Plasmas produced by electrical discharges exhibit properties that depend on the voltage polarity as well as on the liquid properties. In this study, we investigate the impact of liquid permittivity (<span>({upvarepsilon }_{{text{r}}} = { }32,{ }56,{text{ and }},80)</span>) and water electrical conductivity (<i>σ</i> = 2, 500, and 1000 μS/cm) on negative discharges initiated in air at atmospheric pressure. Using a negative pulsed nanosecond high-voltage setup with a pin-to-liquid configuration, experimental results demonstrate that increasing <span>({varepsilon }_{r})</span> leads to faster discharge ignition and higher discharge current. ICCD imaging reveals a decrease in the maximal radial extension of the discharge over the liquid surface with increasing <span>({varepsilon }_{r})</span>. Also, rising <i>σ</i> lead to an increase of the discharge current, and the ICCD images show a decrease in the radial propagation of the discharge over the solution. To gain deeper insights into the discharge dynamics and properties, a 2D fluid model is employed to simulate the various conditions. The results indicate that increasing <span>({varepsilon }_{r})</span> decreases the radial E-field produced by the surface ionization wave and increases the electron density in the air gap. Regarding <i>σ</i>, high-conductivity conditions result in lower radial E-field in the front of the surface ionization wave, explaining the shorter radial propagation of the discharge. Comparing negative with positive discharge, we observe that the former travels a shorter distance over the liquid surface due to its more diffuse front. Moreover, we note the absence of filamentation in the negative surface discharge, unlike the positive counterpart. This disparity is attributed to a relatively lower space charge contained in the front, thereby prohibiting the formation of individual filaments.</p></div>","PeriodicalId":734,"journal":{"name":"Plasma Chemistry and Plasma Processing","volume":"45 1","pages":"191 - 209"},"PeriodicalIF":2.6,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142941045","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}
{"title":"Towards the Understanding of Parameters Allowing to Anticipate the Precipitation Reaction of Metallic Precursors in Humid Air Gliding Arc Plasma Reactor","authors":"F. Hanon, M. Devillers, E. M. Gaigneaux","doi":"10.1007/s11090-024-10516-1","DOIUrl":"10.1007/s11090-024-10516-1","url":null,"abstract":"<div><p>The humid air gliding arc plasma (GP) has demonstrated its capability to synthesize catalysts (metal (hydr)oxides and supported catalysts) with intriguing properties and significant catalytic activity while employing interesting synthesis conditions compared to conventional catalyst synthesis. However, previous studies exposed various precursors to the plasma without prior knowledge of their reactivity through GP. The objective of this paper is to investigate the parameters influencing precursor reactivity and precipitation under humid air GP, by identifying commonalities between reactive and non-reactive precursors. Several factors were identified as predominant: the solubility of the precursor and precipitate, the acidification of the medium along exposure, the redox potential of reactions between the precursor and HNO<sub>2</sub>/NO<sub>2</sub><sup>−</sup> species plasma-generated, and the metal precursor nature. These identified factors have enabled us to create a dichotomous key that can be used for any type of precursors, allowing to anticipate their potential precipitation when exposed to the GP. By utilizing this key, we have identified two new precursors that react, forming new types of solids never synthesized before by GP: Au and Ru-based solids. This demonstrates that GP may be a promising method for developing new types of catalysts, such as metal-supported catalysts, but also indicates that a limited number of precursors may react, at least without changing the conventional synthesis parameters. Therefore, this article highlights both the possibilities and limitations of GP catalyst synthesis.</p></div>","PeriodicalId":734,"journal":{"name":"Plasma Chemistry and Plasma Processing","volume":"45 1","pages":"211 - 238"},"PeriodicalIF":2.6,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142941216","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}
Joo Young Park, Ki Ho Baek, Hyungyu Lee, Jong-Seok Song, Seungil Park, Sung Hoon Jee, Sunghoon Jung, Juyeon Choi, Seunghoon Lee, Sanghoo Park
{"title":"Extension of Tomato Shelf Life via Nitric Oxide Treatment Using Air Plasma","authors":"Joo Young Park, Ki Ho Baek, Hyungyu Lee, Jong-Seok Song, Seungil Park, Sung Hoon Jee, Sunghoon Jung, Juyeon Choi, Seunghoon Lee, Sanghoo Park","doi":"10.1007/s11090-024-10520-5","DOIUrl":"10.1007/s11090-024-10520-5","url":null,"abstract":"<div><p>Nitric oxide (NO) generation-enhanced atmospheric-pressure plasma technology has been investigated as a nonthermal intervention technology for prolonging the ripening period of tomatoes. UV-irradiated dielectric barrier discharge plasma reaches the NO-enhanced mode earlier, and NO is rapidly involved in the inhibition of tomato respiration. With as little as 26 W of power in total, the NO-processing of tomatoes using plasma technology helps control the postripening of tomatoes. The NO-enrichment mechanism was analyzed through numerical calculations, which revealed that the photolysis of ozone (O<sub>3</sub>) and nitrous acid (HONO) occurred during UV irradiation. The measured amount of CO<sub>2</sub> emitted from plasma-treated tomatoes was ~ 300 ppm lower than that emitted from nontreated tomatoes, indicating that metabolism and respiration were inhibited. In addition, the NO-enhanced plasma treatment of tomatoes is considered to be more effective because the so-treated tomatoes emitted 100 ppm less CO<sub>2</sub> than the plasma-treated tomatoes. The delay of respiration through plasma treatment can help prevent color changes or decreases in the firmness of tomatoes.</p></div>","PeriodicalId":734,"journal":{"name":"Plasma Chemistry and Plasma Processing","volume":"45 1","pages":"297 - 311"},"PeriodicalIF":2.6,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142941286","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}
K. Navaneetha Pandiyaraj, M. Karuppusamy, Vandana Chaturvedi Misra, S. Ghorui, P. Saravanan, Mallikarjuna N. Nadagouda, M. Pichumani, Sebastian P. Schwaminger, Verena Zach
{"title":"Development of Functionalized Iron Oxide Nanoparticles Through Non-Thermal Atmospheric Pressure Plasma Assisted Polymerization for Reducing Cytotoxicity","authors":"K. Navaneetha Pandiyaraj, M. Karuppusamy, Vandana Chaturvedi Misra, S. Ghorui, P. Saravanan, Mallikarjuna N. Nadagouda, M. Pichumani, Sebastian P. Schwaminger, Verena Zach","doi":"10.1007/s11090-024-10521-4","DOIUrl":"10.1007/s11090-024-10521-4","url":null,"abstract":"<div><p>The study aims to synthesize and homogeneously functionalize iron oxide nanoparticles (IONPs) using a non-thermal atmospheric pressure (NTAP) plasma for biological applications. IONPs were synthesized using a new NTAP plasma assisted electrolysis technique. The utilization of a unique NTAP plasma rotating reactor allows for a uniform surface functionalization throughout the IONP surface. The precursor used for the functionalization process was acrylic acid (AAc), and it was carried out in response to the applied voltage and monomer flow rate. Optical emission spectroscopy (OES) was used to investigate the reactive species in-situ throughout the functionalization process. Vibrating-sample magnetometry (VSM), energy dispersive X-ray analysis (EDX), X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), and X-ray photo electron spectroscopy (XPS) were used to analyse the changes in the chemical, structural, morphological, and magnetic properties of the untreated and functionalized IONPs. Subsequently, chemical dosimetry and the in vitro metabolic activity assay (MTT) were used to analyse the OH• radical production capacity and toxicity of IONPs. The findings showed that the experimental working conditions had a significant impact on retaining the distinctive COOH functional groups on the surface of functionalized IONPs. The coexistence of the hematite (Fe<sub>2</sub>O<sub>3</sub>) and magnetite (Fe<sub>3</sub>O<sub>4</sub>) phases is revealed by the untreated and functionalized IONPs, which also exhibit marked super paramagnetic performance and a spherical shape. In the end, the IONPs demonstrated clear nontoxicity when they were functionalized at greater flow rates and reduced applied voltage. The analysis results unequivocally demonstrated the functionalized IONPs’ non-toxicity, highlighting their prospective application in the field of biomedicine.</p></div>","PeriodicalId":734,"journal":{"name":"Plasma Chemistry and Plasma Processing","volume":"45 1","pages":"133 - 159"},"PeriodicalIF":2.6,"publicationDate":"2024-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142941243","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}
Kateřina Polášková, David Nečas, Lukáš Dostál, Miloš Klíma, Lenka Zajíčková
{"title":"Sample Thickness and Edge Proximity Influence Spatial Behavior of Filaments and Treatment Uniformity of RF Cold Atmospheric Pressure Plasma Jet","authors":"Kateřina Polášková, David Nečas, Lukáš Dostál, Miloš Klíma, Lenka Zajíčková","doi":"10.1007/s11090-024-10517-0","DOIUrl":"10.1007/s11090-024-10517-0","url":null,"abstract":"<div><p>The ability of atmospheric pressure plasma jets to treat complex non-planar surfaces is often cited as their advantage over other atmospheric plasmas. However, the effect of complex surfaces on plasma parameters and treatment efficiency has seldom been studied. Herein, we investigate the interaction of the atmospheric pressure plasma slit jet (PSJ) with block polypropylene samples of different thicknesses (5 and 30 mm) moving at two different speeds. Even though the distance between the slit outlet and the sample surface was kept constant, the treatment efficiency of PSJ ignited in the Ar and <span>(hbox {Ar/O}_2)</span> gas feeds varied with the sample thickness due to the plasma parameters such as filament count and speed being affected by the different distances of the ground (the closer the ground is, the higher the discharge electric field). On the other hand, the <span>(hbox {Ar/N}_2)</span> PSJ diffuse plasma plumes were less affected by the changes in the electric field, and the treatment efficiency was the same for both sample thicknesses. Additionally, we observed a difference in the efficiency and uniformity of the PSJ treatment of the edges and the central areas in some working conditions. The treatment efficiency near the edges depended on the duration of the filament contact, <i>i. e.</i>, how long the local electric field trapped the filaments. Conversely, the treatment uniformity near the edges and in the central areas was different if the number of filaments changed rapidly as the discharge moved on and off the sample (the 5 mm samples treated by easily sustained Ar PSJ).</p></div>","PeriodicalId":734,"journal":{"name":"Plasma Chemistry and Plasma Processing","volume":"45 1","pages":"49 - 68"},"PeriodicalIF":2.6,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11090-024-10517-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142941261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ravil Usmanov, Anton Melnikov, Vladimir Polistchook, Andrey Gavrikov, Nikolay Antonov, Valentin Smirnov
{"title":"Influence of Mixed Cathode Emissivity on Generated Plasma Flow in Vacuum Arc with Heated Cathode","authors":"Ravil Usmanov, Anton Melnikov, Vladimir Polistchook, Andrey Gavrikov, Nikolay Antonov, Valentin Smirnov","doi":"10.1007/s11090-024-10522-3","DOIUrl":"10.1007/s11090-024-10522-3","url":null,"abstract":"<div><p>Vacuum arc is one of the most widespread sources of multicomponent ion/plasma flows. In the paper, we examine how the emissive properties of mixed cathode components affect the parameters of generated plasma. The scheme of vacuum arc with a heated cathode made of CeO<sub>2</sub> + Cr and TiO<sub>2</sub> + Cr powders was used. The arc discharges in the current range of 30–90 A and in the cathode temperature range of 1.8–2.0 kK were studied. It was found that CeO<sub>2</sub> provides an intensive thermal electron emission and the arc with CeO<sub>2</sub> + Cr cathode has a diffuse current attachment, plasma parameters are controllable and mainly Cr ions appear in plasma. Conversely, the current constricts in the arc with a non-emissive TiO<sub>2</sub> + Cr cathode, the plasma parameters are unchangeable and Ti and Cr ions are generated in comparable amounts. The results presented may be useful in multicomponent plasma sources design.</p></div>","PeriodicalId":734,"journal":{"name":"Plasma Chemistry and Plasma Processing","volume":"45 1","pages":"21 - 32"},"PeriodicalIF":2.6,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142941192","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 An Quoc Than, Minh Anh Ngoc Tran, Duyen Ky Vo Nguyen, Trung Thanh Nguyen, Thien Huu Pham
{"title":"Post-Germination Growth Stimulation in Mustard Greens (Brassica juncea L.) by Gaseous Products from Air Plasma Discharge","authors":"Ha An Quoc Than, Minh Anh Ngoc Tran, Duyen Ky Vo Nguyen, Trung Thanh Nguyen, Thien Huu Pham","doi":"10.1007/s11090-024-10519-y","DOIUrl":"10.1007/s11090-024-10519-y","url":null,"abstract":"<div><p>Plasma agriculture is an emerging sector with potential to improve agricultural yield and promote sustainable development. While several studies have demonstrated positive impacts on seed germination and post-treatment plant growth indices, the response of vegetative stage plants to plasma-derived components remains underexplored. In this study, the effects of gaseous products generated by dielectric barrier discharge (DBD) plasma on the vegetative growth of mustard greens (<i>Brassica juncea</i> L.) were investigated. Fourteen-day-old plants were exposed to plasma gas (indirect plasma) at varying frequencies, and growth parameters were monitored after 7 and 14 days of treatment. The results revealed that exposure to plasma gas for 30–45 min per day positively impacted root length, plant height, leaf area as well new leaf formation rate, with increases ranging from 16 to 30%. Additionally, plasma-exposed plants exhibited significantly higher chlorophyll content (33%), <i>total protein content (15–20%</i>), and dry/fresh weight ratio (17%) compared to the control sample. Interestingly, cold plasma treatment demonstrated a greater influence on root growth, while a negative effect was observed on aboveground parts at high exposure frequencies. These findings demonstrate that plasma treatment not only benefits seed germination but also has the potential to enhance crop yield through its stimulatory effects on vegetative growth.</p></div>","PeriodicalId":734,"journal":{"name":"Plasma Chemistry and Plasma Processing","volume":"45 1","pages":"313 - 324"},"PeriodicalIF":2.6,"publicationDate":"2024-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142941110","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}
{"title":"Swellable Plasma Polymer Films for Use in Hydrogel-Based Biomedical Devices","authors":"Bishakh Rout, Pierre-Luc Girard-Lauriault","doi":"10.1007/s11090-024-10504-5","DOIUrl":"10.1007/s11090-024-10504-5","url":null,"abstract":"<div><p>Swellable plasma polymer films have been deposited on silicon wafers and hydrogels in a low-pressure PECVD system. Deposition characteristics and physico-chemical characterization data of swellable oxygen-rich plasma polymerised ethylene films were studied. These films were deposited using gas flows consisting of C<sub>2</sub>H<sub>4</sub> (5 sccm) and CO<sub>2</sub> (10–40 sccm). Using profilometry, changes in thickness of films over multiple water immersion and drying cycles were recorded. Changes in the structure and morphology of films was also evaluated by using scanning electron microscopy, dye permeation studies and atomic force microscopy. Mechanical properties of the films were studied by using nanoindentation experiments, and intrinsic residual stresses were also calculated for the films. The behaviour of films was dependent on the flexibility and water content of the underlying hydrogel substrates. These findings pave way for creation of stable plasma polymer films on biomedical devices made from hydrogels.</p></div>","PeriodicalId":734,"journal":{"name":"Plasma Chemistry and Plasma Processing","volume":"45 1","pages":"113 - 131"},"PeriodicalIF":2.6,"publicationDate":"2024-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142941114","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}
Božena Šerá, Petra Šrámková, Barbora Tunklová, Sandra Ďurčányová, Michal Šerý, Hubert Žarnovičan, Anna Drozdíková, Leonid Satrapinský, Anna Zahoranová, Dušan Kováčik, František Hnilička
{"title":"How Mucilaginous Seeds of Different Plant Species Respond to Nonthermal Atmospheric Plasma Treatment","authors":"Božena Šerá, Petra Šrámková, Barbora Tunklová, Sandra Ďurčányová, Michal Šerý, Hubert Žarnovičan, Anna Drozdíková, Leonid Satrapinský, Anna Zahoranová, Dušan Kováčik, František Hnilička","doi":"10.1007/s11090-024-10515-2","DOIUrl":"10.1007/s11090-024-10515-2","url":null,"abstract":"<div><p>Important representatives of mucilaginous seeds from different plant species, namely amaranth (<i>Amaranthus hypochondriacus</i> L.), garden cress (<i>Lepidium sativum</i> L.), common flax (<i>Linum usitatissimum</i> L.), psyllium (<i>Plantago ovata</i> Forssk.), and chia (<i>Salvia hispanica</i> L.) were subjected to non-thermal plasma (NTP) generated by diffuse coplanar surface barrier discharge with different exposure times (1, 3, 5, 10, 20, 30 s). Seed water uptake, kinematic viscosity, parameters of seed germination and initial seedling growth were monitored along with chemical and morphological changes on the seed surface. Water absorption increased with increasing plasma exposure time for garden cress, psyllium and chia seeds, but it was greatest for chia seeds. For all seed species, the kinematic viscosity decreased with increasing plasma exposure time. The highest values were found for chia seeds after a treatment for 30 s. Surface analyses did not reveal any chemical and morphological changes of the seed surface. According to a PCA comparison of basic characteristics of germination and initial growth, common flax seeds differ in their reaction to NTP from the other tested plants. On the contrary, chia seeds showed the best water uptake and kinematic viscosity. It was shown that NTP treatment improves the absorption of mucilaginous seeds and does not change the surface and structural properties of the seeds. These mucilaginous seeds can be used as raw seed, whereby NTP accelerates their preparation during soaking.</p></div>","PeriodicalId":734,"journal":{"name":"Plasma Chemistry and Plasma Processing","volume":"45 1","pages":"325 - 350"},"PeriodicalIF":2.6,"publicationDate":"2024-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11090-024-10515-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142941113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}