Atmospheric Plasma Research Articles

Spectroscopic analysis of single and multiphase electrical discharge for clean energy conversion

Abstract In this study, we examined non-thermal atmospheric pressure plasma processes operating under varying conditions using different liquid and gaseous hydrocarbon materials. The light emission from the discharges were analyzed through optical emission spectroscopy to comprehend the products generated in different parameter space. The gaseous products from each of these analyses were also collected and analyzed through gas chromatography. Analysis of the optical emission from the discharge and concentration of the gaseous products show a linear trend between emission intensity ratio H α /C2 and gas concentration ratio H2/C2H x . Gas temperature and electronic excitation temperature of different experimental conditions were also compared and indicates that spark discharge relates to higher electronic excitation temperature compared to glow discharge of similar medium. Higher electronic excitation temperature leads to generation of different products from spark discharge compared to glow discharge. Glow discharge generates more of the intermediate products. Whereas spark discharge, because of its higher electronic excitation temperature, leads to higher rate of dissociation and therefore generates more of the dissociated products. Glow discharge, for example generates more of OH and H from the moisture present in the carrier gas as impurity, whereas spark discharge would generate more of H α and O particles further breaking down the OH bonds. Finally, UV–Vis analysis was performed on the liquid products of the discharge and reveals that the photo-centers and the newly generated soot nano particles absorb the UV range lights and some of the visible range light emission mostly up to ∼600 nm.

Physicochemical properties and antimicrobial efficacy of argon cold atmospheric pressure plasma jet activated liquids – a comparative study

Cold atmospheric pressure plasma jet activated liquids (CAPJALs) have attracted considerable scientific attention due to their peculiar antimicrobial characteristics. In the current context, there is a need to compare the bactericidal activity of CAPJALs and demonstrate the specific parameters necessary to obtain greater effectiveness. This in-vitro research examines the antimicrobial activity of liquids, such as deionized water (DI-W), drinking water (DW), tap water (TW), and normal saline (NS) activated by Ar cold atmospheric pressure plasma jet (CAPJ) against multidrug-resistant (MDR) E. coli and S. aureus. The computed D- value showed that CAPJALs' bacterial inactivation efficacy followed the trend – DI-W ≈ NS > DW > TW for both the isolates. To obtain greater bactericidal effectiveness, an optimum combination of liquid activation time by CAPJ and CAPJAL – bacteria interaction time was noticed. In addition, the rate at which the physicochemical parameters (pH, electrical conductivity (EC), total dissolved solids (TDS), and concentration of reactive species (H2O2, NO3-, and NO2-)) changed within the liquid varied in different ways. It was observed that the identified gas-phase species (Ar I, Ar+, N2, N2+, O I, OH•, OH+, NO+, O2+, N2O3-, NO3-, N2O2-, etc.) would contribute to modification of liquid physicochemical property by generating liquid phase reactive species (NO3-, NO2-, H+, H2O2, ONOOH, Cl2, HOCl, etc.) via reaction cascades. These reactive species in the liquid phase, together with other physicochemical characteristics, were found to play a part in the process of bacterial inactivation. This study into the underlying mechanism of CAPJ – liquid and CAPJAL – bacteria interaction would help to determine its potential use as a disinfectant in healthcare settings. List of microorganismsE. coli: Escherichia coli; S. aureus: Staphylococcus aureus.

Autofluorescence-guided Removal of Bacterial Biofilms from Tissues Using Cold Atmospheric Pressure Plasma (CAP).

Cold atmospheric pressure plasma (CAP) has the potential to completely remove biofilms from surfaces. The goal of this study is to employ the autofluorescence nature of bacterial biofilms to guide the removal of these biofilms using a CAP scalpel. Pseudomonas fluorescens biofilms, which produce a green fluorescence under 405 nm UV light, were grown on 12 chicken samples. The tissue model (chicken tissue) is placed on a motorized X-Y stage with the plasma discharge device directly above the sample. Fluorescent-guided CAP treatment of biofilm regions was carried out using a 1.37 lpm Ar/H2O plasma device with 39.5 × 54 mm2 dimension and a 1 * 0.6 mm2 plasma discharge outlet with discharge speed was 1 mm/s and sample distance of 4 mm. The discharge voltage and current were 3.24 kV and 1.2 mA respectively. Results based on analysis of the fluorescent images show that 97% biofilm removal; CFU analysis confirms that up to 99.98% of the bacteria are now absent from the tissue's surface. This is the first instance of two new applications: using cold atmospheric plasma (CAP) to remove bacterial biofilms from soft tissues and employing CAP in an image-guided procedure.

Impact of the surface on He(23S1) and He2(a3Σu+) metastables densities in atmospheric pressure RF plasma

Abstract The dynamic of helium metastable formation along an atmospheric pressure helium plasma channel with different bounding surfaces is analysed. The densities of He(23S1) and He2(a3Σu +) are measured using optical absorption spectroscopy. A simple model for helium metastable creation, quenching by water impurities and destruction upon surface impact, is developed. The model shows a very good agreement if one assumes that surfaces mainly control secondary electron emission, affecting the local heating at the plasma boundary sheath. This, in turn, changes the rate for He(23S1) and He2(a3Σu +) conversion. The helium metastable induced desorption of adsorbed water causes a decay of the metastable density along the plasma channel due to quenching.

Mechanism of lipid peroxidation of liposomes by cold atmospheric pressure plasma jet irradiation.

Liposome lipid peroxidation induced by cold atmospheric pressure plasma jet (CAPPJ) irradiation was investigated. The formation of thiobarbituric acid reactive substances (TBARS), an indicator of lipid peroxidation final products, as a function of irradiation was observed. Lipid radicals, peroxidation reaction intermediates generated by CAPPJ irradiation, were confirmed by increased NBD-pen fluorescence intensity. Additionally, lipid peroxidation products, liposomal phosphatidylcholine (PC) isomers, were analyzed by LC-MS/MS. Products specific to singlet oxygen (1O2) oxidation, 16:0/10-hydroperoxy-8E,12Z-octadecanoic acid (10-8E,12Z-HpODE) PC and 16:0/12-9E,13E-HpODE PC, were not detected, but radical oxidation specific products 16:0/13-9E,11E-HpODE PC and 16:0/9-10E,12E-HpODE PC were. This suggests that during CAPPJ irradiation, radicals, rather than 1O2, are the primary reactive species of lipid peroxidation. This is also supported by the β-carotene quenching of 1O2 not suppressing TBARS and lipid radical generation. Also, neither TBARS formation nor lipid radical generation were suppressed by SOD, indicating that the superoxide radical (O2 •-) is not responsible for the lipid peroxidation reaction. As the CAPPJ irradiation of water produces large quantities of hydroxyl radical (•OH) and •OH scavengers decreased the amount of TBARS produced by CAPPJ irradiation, it is highly plausible that •OH is the primary species involved in CAPPJ-induced liposome lipid peroxidation.

Surface cleaning with atmospheric pressure plasma jet investigated by in-situ optical emission spectroscopy and laser-induced breakdown spectroscopy

Cleaning of surfaces with atmospheric pressure plasma jet (APPJ) is investigated by in-situ optical emission spectroscopy (OES) and laser-induced breakdown spectroscopy (LIBS). The APPJ device operates a spark discharge of kW power in Argon gas flow resulting in a powerful plasma jet expanding into air. For cleaning experiments samples are coated with lubricant layers of 1.1 to 7.1 µm thickness. Light collected at the sample surface during APPJ treatment is analyzed spectroscopically and used to monitor the cleaning process. LIBS chemical imaging delivers spatial cleaning profiles of plasma treated surfaces. From measured emission intensities of CN molecular band and Na atomic line the cleaning efficiencies for carbon and Na containing contaminants are determined. The power of APPJ plasma generator, distance between sample and jet nozzle, scan speed, and Argon gas flow are varied to optimize the surface treatment. Thermal and non-thermal processes contribute to cleaning. For the carbon containing contaminant thermal processes are dominating (∼90 %) while also non-thermal processes (∼30–45 %) are relevant for the Na containing component. A cleaned surface area per time from 0.3 to 10 cm2/s is investigated. Cleaning efficiency up to 95 % is obtained highlighting the potential of APPJ surface cleaning under ambient conditions.

A collisional-radiative model for atmospheric-pressure low-temperature air discharges

Plasma-assisted combustion technology has been a hot spot in aero-engines and scramjet-engines. The electron density is a key discharge parameter related to the active-particle density. The latter has been considered playing an important role in the above applications by the kinetic effect. In this work, an atmospheric pressure air plasma collisional-radiative model considering the excited states of atomic nitrogen and oxygen is built based on previous widely kinetic investigations of molecules and radicals, as well as their excited states. The excited states, especially the atomic nitrogen and oxygen states were less investigated in previous works. The emission intensity distributions from the model have a good agreement with those measured in the glide arc plasma with two discharge modes, as well as the microwave plasma. Based on the kinetics of molecular and atomic emitting states, the line-ratio method is presented to determine the electron density. The N2(337 nm)/O(844 nm) and N2(337 nm)/NO(γ) line ratios are used for the glide arc plasma and microwave plasma torch, respectively. Besides, the kinetics of the excited states involved with two line-ratios are also investigated in the two types of discharges. Combined with the atmospheric pressure actinometry method, the kinetic effect of the plasma-assisted combustion can be revealed quantitatively in the future.

Plasma formation during flash sintering of boron carbide – Part II: Effect on sintering and optimisation of process variables

Field assisted sintering techniques, such as Flash Sintering (FS), allow rapid heating and densification of ceramics within seconds at significantly reduced environmental temperatures. FS of oxides has been extensively researched since 2010, whereas the potential densification of non-oxides such as carbides is rarely investigated. In the first part of this investigation the atmospheric breakdown and plasma formation under FS-conditions relevant to SiC and B4C was researched. In the present work, the FS of B4C was investigated with and without plasma formation for comparison, and the influence and optimum combination of the other main FS-parameters determined. The results showed that at a furnace temperature of 1500 °C, it is possible to densify B4C by DC FS with or without an initial plasma formation. However, though plasma formation did not itself lead to densification of the material, the plasma-induced removal of the B2O3-layer on the surface of the powder led to a significant improvement in subsequent densification during FS. The effect of the Ar-plasma generated in removing the surface oxide from B4C-particles was confirmed by SEM and XPS. Other process variables such as carbon additives, thermal insulation and hold time also significantly influenced the densification of B4C by FS. With the optimised conditions, 96 % dense B4C, with a grain size of 10 μm and a hardness of 31 GPa (HV1) was produced by pressureless FS in 5 min at a furnace temperature of 1500 °C.

Orthokeratology lens care: Surface treatment by an atmospheric pulsed microwave air plasma jet

Orthokeratology lens care: Surface treatment by an atmospheric pulsed microwave air plasma jet

Energy efficiency of reactive species generation in radio frequency atmospheric pressure plasma jets driven by tailored voltage waveforms in a He/O2 mixture

Abstract The effect of the shape of the applied voltage waveform on the energy efficiency of reactive species generation is investigated in an atmospheric pressure RF microplasma jet operated in a He/O2 mixture (99.5%/0.5%) based on a one-dimensional hybrid fluid-kinetic simulation method. Using a tailored waveform synthesized from four consecutive harmonics (with a base frequency of f b = 13.56 MHz and amplitudes of ( 160 / k ) V for the k-th harmonic), it is shown that by changing the identical phases of the even harmonics in the waveform, ϕ, the generation efficiencies of three specific reactive species (helium metastables, atomic and vibrationally excited oxygen), defined as the ratio of mean density and input plasma power, attain their maxima for different values of ϕ, due to changes in the Electron Energy Probability Function (EEPF). The phase control of the EEPF and its critical role in modulating generation energy efficiencies are explained in detail. The simulation results are verified by experimental (Phase Resolved Optical Emission Spectroscopy and Two Photon Absorption Laser Induced Fluorescence) data.

Capping agent-free aqueous gold nanoparticles generated by an environmentally friendly plasma-liquid method

This study investigates a simple approach for synthesizing gold nanoparticles (Au NPs) using atmospheric pressure plasma without the need for reducing agents, additives, or capping agents. The size, morphology, optical properties, and aggregation stability of the synthesized Au NPs were characterized using scanning electron microscopy, UV-vis spectroscopy, and zeta potential analysis. The UV-vis absorption spectra of the gold nanoparticles, obtained at various Au3+ concentrations and treatment durations with anode plasma discharge, were analyzed. The UV-vis spectra revealed a surface plasmon resonance absorption band between 530–600 nm, indicative of Au NP formation. Results demonstrated that the size of Au NPs can be tuned within the range of 30–75 nm by adjusting the gold salt precursor concentration from 0.3 to 2.5 mmol/L. It was found that plasma treatment for 3–10 minutes, at different Au3+ concentrations, resulted in the formation of Au NPs with varying sizes and morphologies. The study showed that particles with different shapes – spherical, hexagonal, and triangular – were formed depending on the initial concentration of Au3+. The plasma-chemically synthesized nanoparticles at an Au3+ concentration of 0.06 mmol/L were predominantly spherical and exhibited the highest stability (lasting 12–24 hours), with a zeta potential of –20 to –22 mV, compared to samples with Au3+ concentrations ranging from 0.3 to 2.5 mmol/L.

Reduction of microbial load in soil by gas generated using non-thermal atmospheric pressure plasma

Elevation of the microbial load in soil resulting from contamination with organic wastes of biological origin increases the chances of emerging soil-borne pathogens and disturbance of nutrient cycling. We analyzed the potential of gas generated using atmospheric-pressure non-thermal plasma as a tool for reducing the microbial load in soil and its impact on the soil microbial community and fertility. The gas generated by a cylinder-type single pair of dielectric barrier discharge (DBD) electrode plasma inactivated over 90 % of bacterial cells and fungal spores after 5 and 20 min of treatment, respectively, in both suspension and vermiculite. Gas generated using four pairs of DBD electrode plasma eradicated approximately 50 % of bacterial cells and 40 % of fungal spores in nursery soil. It also eliminated approximately 10–29 % of aerobic natural microbiota in field soil after 60 min of treatment. The diversity of microbial species in the plasma gas-treated field soil was slightly lower than that in the untreated soil, and the relative abundances of the phyla Proteobacteria and Basidiomycota were reduced in the plasma gas-treated soil. Spinach plant growth and nitrate levels increased significantly in the plasma gas-treated field soil. Our data suggest that plasma-generated gases can be used for soil sanitation with no drastic changes to the soil microbial community and soil fertility enhancement.

Radical formation in skin and preclinical characterization of a novel medical plasma device for dermatology after single application.

Cold atmospheric plasma (CAP) enables painless tissue treatment by producing reactive species including excited molecules and charged particles and is of great interest for medical applications. Medical CAP sources work in contact with air at ambient pressure, resulting in the generation of substantial amounts of reactive oxygen and nitrogen radicals. These radicals have a significant influence on cellular biochemistry, are crucial components of the immune system, and play a central role in wound therapy. CAP has a variety of applications, with a particular emphasis on tissue treatment in dermatology. It eradicates microorganisms by preventing biofilm formation so that wounds can be effectively disinfected and treated antiseptically. Using both in vitro and ex vivo methods, a comprehensive preclinical assessment of a novel battery-operated cold plasma handheld device with a reusable, and autoclavable glass cylinder was performed. The objectives were to evaluate the potential impact of single CAP application on radical formation with and without wound dressing, by directly measuring radicals in skin, to investigate the influence of CAP application on antimicrobial activity and cytotoxicity in vitro, and to assess skin tolerance ex vivo. The direct effect of CAP on the formation of radicals in the skin after plasma application at different levels with and without wound dressing was demonstrated quantitatively for the first time using electron paramagnetic resonance spectroscopy. Free radicals were measured in the skin as a function of the duration of CAP treatment. Furthermore, it was found that an alginate or wound plaster dressing does not significantly inhibit radical formation in skin compared to application without a dressing. In vitro and ex vivo data showed no cytotoxic potential with simultaneous efficacy against bacteria strains and no risk of temperature rise, pH change, skin barrier or DNA damage. These results show a high potential for wound healing applications in vivo.

Infrared radiative performance and ablation resistance of coatings sprayed with Pr6O11 core–shell-structured ZrB2-SiC powders

To improve the ablation resistance of carbon/carbon (C/C) composites, ZrB2-SiC coatings sprayed with Pr6O11 core–shell-structured ZrB2-SiC powders were prepared via atmospheric plasma spraying. The phase composition, microstructure, infrared radiative performance, and ablation resistance of the powders and coatings were investigated. The results show that the Pr6O11 shell is uniformly distributed around the induction plasma spheroidization-treated (IPS) ZrB2-SiC powder and reduces the formation of low-emissivity phases, such as ZrO2 and SiO2, induced by oxidation during spraying. Stripe-shaped Pr6O11 appears in the coatings as a sealing phase, and the emissivity of the modified coating improves due to the high emissivity of Pr6O11. When the molar percent of Pr6O11 is 10 %, the coating indicates the highest emissivity (i.e. 0.94) in the 3–6 μm band at 750 °C. During a 60 mm-180 s oxyacetylene torch test, the surface temperature of the coating modified with 10 % Pr6O11 decreases by 150 K and reaches 1923 K owing to its high emissivity, resulting in minimal volatilisation in the sealing phase. Furthermore, the mass ablation and linear ablation rates of the coating above are 1.67 × 10-4 g/s and 1.82 × 10-4 mm/s, respectively, which are 34 % and 42 % lower than those of unmodified coating. These results confirm that the introduction of Pr6O11 can increase the emissivity of the coating in the 3–6 μm band and provide considerable ablation protection for the C/C composites.

Water vapor corrosion behaviours of nanostructured Yb2O3-Yb2SiO5/mullite/Si environmental barrier coatings

In this work, the nanostructured Yb2O3-Yb2SiO5/mullite/Si environmental barrier coatings (EBCs) were designed and prepared by atmospheric plasma spraying. The water vapor corrosion behavior of coatings was investigated at a temperature of 1350 °C for durations ranging from 100 to 500 hours, and the influence of phase compositions, microstructure on this behavior was systematically investigated. The results indicate that phase transformation occurs during the water vapor corrosion process, and severe corrosion takes place at the Yb2O3-Yb2SiO5 top coating and the mullite intermediate layer. Obvious diffusion reaction between Yb2O3-Yb2SiO5 and mullite layers occurred without water vapor, while the diffusion reaction cannot be observed under water vapor. The water vapor corrosion mechanism of EBCs is mainly attributed to residual thermal mismatch stresses, phase transformation resulting from sintering of Yb2O3-Yb2SiO5, as well as the formation of TGO by oxidation.

Driven two-fluid slow magnetoacoustic waves in the solar chromosphere with a realistic ionisation profile

Context. This study was carried out in the context of chromosphere heating. Aims. This paper aims to discuss the evolution of driven slow magnetoacoustic waves (SMAWs) in the solar chromosphere modelled with a realistic ionisation profile and to consider their potential role in plasma heating and the generation of plasma outflows. Methods. Two-dimensional (2D) numerical simulations of the solar atmosphere are performed using the JOANNA code. The dynamic behaviour of the atmospheric plasma is governed by the two-fluid equations (with ionisation and recombination terms taken into account) for neutrals (hydrogen atoms) and ions (protons)+electrons. The initial atmosphere is described by a hydrostatic equilibrium (HE) supplemented by the Saha equation (SE) and embedded in a fanning magnetic field. This initial equilibrium is perturbed by a monochromatic driver which operates in the chromosphere on the vertical components of the ion and neutral velocities. Results. Our work shows that the HE+SE model results in time-averaged (net) plasma outflows in the top chromosphere, which are larger than their pure HE counterpart. The parametric studies demonstrate that the largest chromosphere temperature rise occurs for smaller wave driving periods. The plasma outflows exhibit the opposite trend, growing with the driver period. Conclusions. We find that the inclusion of the HE+SE plasma background plays a key role in the evolution of SMAWs in the solar atmosphere.

Influence of FeSiAl Content on the Morphological Evolution and Electromagnetic Properties of FeSiAl/CaO–B2O3–SiO2 Microwave-Absorbing Coatings

CaO–B2O3–SiO2 (CBS) is a promising lightweight, low-dielectric matrix material for high-temperature microwave-absorbing coatings. However, the comprehensive study of absorbent morphology evolution within such coatings and its influence on electromagnetic (EM) performance has not been conducted. In this work, a series of FeSiAl (FSA)/CBS composite coatings with various FSA contents were fabricated using atmospheric plasma spraying. The morphological evolution of the FSA phase and the resulting EM properties of the coatings were systematically analyzed. Experimental findings show that during the spraying process, when the size of FSA clusters in the composite powder exceeds the thickness of CBS splats, FSA clusters form a rigid contact with the underlying solidified coating, leading to the development of a lamellar structure. This lamellar FSA phase creates local conductive networks, which significantly increase the complex permittivity of the coating. These results provide valuable guidance for controlling absorbent morphology and optimizing the EM properties of CBS-based coatings.

Improving insulating film deposition stability with atmospheric pressure plasma jet by post-mixing precursor feedthrough with hollow electrode

Film deposition with atmospheric pressure plasma jet (APPJ) is an effective approach to enhance surface performances of insulating materials for its high reactivity and flexible operation. However, the plasma-activated precursor will inevitably produce inner-wall contamination in the dielectric tube as it travels through the electrode gap, deteriorating film deposition stability during long-term operation. In this paper, a post-mixing precursor feedthrough is designed to suppress the dielectric tube contamination and improve film deposition stability. The influences of traditional pre-mixing feedthrough and post-mixing feedthrough proposed in this paper on discharge and film deposition stability are compared. The thickness of inner-wall contamination is acquired by image processing technique. The electrical and optical discharge characteristic variations with operation duration are diagnosed to evaluate the discharge stability. The film performance is characterized by the water contact angle (WCA) and flashover voltage. Finally, scanning electron microscope (SEM) and X-ray photoelectron spectroscopy (XPS) measurements are performed for the film physicochemical property variations to explore the mechanism about the effect of precursor feedthrough on film deposition stability. The results indicate that the thickness of the contamination is reduced by 79.9 % for the post-mixing feedthrough after a 30-minute operation. Contamination growth increases the initial discharge voltage and decreases the discharge strength, which is remarkably inhibited for the post-mixing feedthrough. The degradation of WCA and flashover voltage for the post-mixing feedthrough is <10 % after a 30-minute operation. The film physicochemical properties for the post-mixing feedthrough exhibit no spectacular change according to SEM and XPS results. Whereas, the ratio of high-oxidized silicone bonds for the pre-mixing feedthrough is reduced and the degree of cross-linking is drastically decreased. This paper provides a reference for optimizing precursor feedthrough to improve the stability of film deposition with APPJ.

Cold Atmospheric Plasma in Cancer Therapy: Molecular Insights, Novel Concepts, and Future Opportunities

Over the past 2 decades, cold atmospheric plasma (CAP) has been playing increasingly pivotal roles in cutting edge biomedical applications and has developed into an innovative field of research of growing importance. One promising new medical application of CAP is cancer treatment. Being able to richly induce both reactive oxygen and nitrogen species, CAP has been shown to effectively control events critical to cancer initiation/progression; selectively inducing Deoxyribonucleic acid (DNA) damage and apoptotic cell deaths, reducing tumor volume and vasculature, halting metastasis and conferring anti-tumor effects by taking advantage of e.g., synergies among and between chemotherapeutic drugs and nanoparticles. This paper discusses molecular and immunological mechanisms of CAP treatment as a potential tool against cancers, with a focus on the novel mechanisms by which CAP interacts with chemotherapeutic drugs and nanotechnology. We then attempt to draw parallels between what is already known about the mechanisms of CAP activity, some novel concepts and attempts of CAP synergy, and the knowledge we would need to develop CAP as a potential therapeutic strategy in oncotherapy. HIGHLIGHTS This article focused on critical review of cold atmospheric plasma’s (CAP) application in cancer therapy. CAP technology in cancer treatment has been expected to cause a medical and therapeutic implications. CAP has strong anticancer efficacy and has been reported about the cell migration and apoptosis. The major role of reactive oxygen and nitrogen species of plasma discharge is to control the core state of cancer transition. GRAPHICAL ABSTRACT

Synthesis of Ultrathin Film PEGDMA Hydrogels Coated onto Different Surfaces by Atmospheric Pressure Plasma: Characterization and Potential Features for the Biomedical Field

AbstractThe preparation of resistant ultrathin film (utf) hydrogels coated onto different working surfaces (e.g., fabrics) is paying increasing attention as an advantageous strategy for customizing their resultant properties. More specifically, poly(ethylene glycol) (PEG)‐based utf‐hydrogels are relevant for their superior biocompatibility or antibiofouling properties. However, promoting the generation of poly(ethylene glycol) dimethacrylate (PEGDMA) cross‐links ideally without the use of initiators or other cross‐link agents, which might compromise the final bioactivity of the system, is complicated. Moreover, the actual synthesis techniques used for the preparation of such utf‐hydrogels face important drawbacks like high scale‐up costs or important geometrical restrictions, completely hindering its technological transfer. Herein, for the first time and easy and technologically scalable technology is reported for the synthesis and direct deposition of PEGDMA400 utf‐hydrogels onto different substrates based on atmospheric pressure nanosecond pulsed plasma approach. The advantages of the technology are explored and discussed, reporting the ready‐to‐use transparent coating of fabrics. After washing the samples using washing programs of a commercial laundry machine, coatings are still well adhered, showing excellent stability. Finally, the resultant properties of PEGDMA400 utf‐hydrogels are exhaustively characterized using in operando conditions in order to elucidate their potential capabilities in the biomedical field.