Article
Chemistry, Multidisciplinary
Jacob Manzi, Ariel E. E. Weltner, Tony Varghese, Nicholas McKibben, Mia Busuladzic-Begic, David Estrada, Harish Subbaraman
Summary: This paper demonstrates the use of plasma-jet printing (PJP) to deposit thermoelectric nanoflakes onto flexible substrates at room temperature, with substantial improvements in material adhesion and flexibility observed. The printed films exhibit electrical conductivity of 2.5 x 10(3) S m(-1) and a power factor of 70 mu W m(-1) K-2 at room temperature. This advancement in plasma jet printing promotes not only the development of energy harvesting but also large-scale flexible electronics and sensors for space and commercial applications.
Article
Polymer Science
Emma Birleanu, Ilarion Mihaila, Ionut Topala, Catalin Borcia, Gabriela Borcia
Summary: This study investigates the effects of atmospheric-pressure plasma (APP) treatment on non-polar polymers and finds that short treatment times can significantly change the surface properties of the polymers, which remain stable after treatment.
Article
Physics, Applied
J. Liu, L. Nie, Y. Xian, X. Lu
Summary: The study found that adding a small amount of nitrogen or oxygen to argon can make the plasma channel smooth, while the rotational frequency of the electrode does not affect the appearance of the plasma channel. Optical emission spectra show that adding O-2/N-2 reduces the emission intensity of transitions from excited argon levels to metastable states, leading to a transition of the discharge channel's nature.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
Article
Chemistry, Multidisciplinary
Jia-Shiuan Tsai, Jian-Zhang Chen
Summary: This study investigated the impact of oxygen impurity on the inlet gas in a nitrogen atmospheric pressure plasma jet (APPJ). A numerical model was developed to simulate the nitrogen APPJ considering fluid dynamics, heat transfer, mass transfer, diffusion, and chemical reactions. Experimental tests were conducted to verify the plasma temperature characteristics on the treated surface. The findings revealed that the plasma temperature decreased with increasing oxygen impurity, affecting the excited and neutral species composition.
APPLIED SCIENCES-BASEL
(2023)
Article
Physics, Applied
Elmar Slikboer, James Walsh
Summary: The study investigated the electron dynamics in an Argon plasma jet interacting with a liquid surface under AC excitation, revealing differences in discharge behavior between grounded and floating liquid states. The discharge process was divided into pre-, main-, and post-breakdown phases, with electron density and temperature affected by the grounding status of the liquid.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
Qizhen Wang, Zhihui Liu, Xin Zhang, Yi Zhang, Tianlong Jiang, Weiming Zhang, Hualin Wang, Weiwei Jiang, Shimin Liu, Chaoqian Liu, Nan Wang, Yunxian Cui, Wanyu Ding, Chuang Dong
Summary: SiO2 insulation film was prepared using atmospheric pressure plasma jet (APPJ) technology, allowing for application on large-sized and/or complex surface morphology substrates. The relative content of Si and O in APPJ affected the insulation resistance of SiO2 film, with excessive Si leading to improved resistance.
Article
Physics, Applied
K. Gazeli, M. Hadjicharalambous, Eleftherios Ioannou, O. Gazeli, C. Lazarou, C. Anastassiou, P. Svarnas, V. Vavourakis, G. E. Georghiou
Summary: We developed an in silico model to simulate the response of B16F10 melanoma cells to a helium atmospheric pressure plasma jet (APPJ) and doxorubicin drug (DOX). The simulation results showed that increasing plasma duration and DOX concentration resulted in increased cytotoxicity and a higher apoptosis probability compared to mitosis probability. Furthermore, combining plasma treatment and drug application enhanced cell cytotoxicity. This in silico model is valuable in the field of plasma medicine for understanding the response of different cancers to APPJ and cancer drugs.
APPLIED PHYSICS LETTERS
(2022)
Article
Nanoscience & Nanotechnology
Nazli Turan, Mortaza Saeidi-Javash, Jiahao Chen, Minxiang Zeng, Yanliang Zhang, David B. Go
Summary: The passage discusses the application of atmospheric pressure nonthermal plasmas in sintering printed films, demonstrating the surface modifications achieved through nonthermal plasmas under ambient conditions. These results offer a new direction for future electronic device manufacturing, showcasing the potential of utilizing nonthermal plasmas for additive manufacturing on flexible and low-melting-point materials.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Polymer Science
Katerina Polaskova, Milos Klima, Zdenka Jenikova, Lucie Blahova, Lenka Zajickova
Summary: The study demonstrates that nitrogen content and low molecular weight oxidized materials are two main parameters influencing the adhesive strength of polypropylene plasma treatment. Nitrogen functional groups promoted adhesion between epoxy adhesive DP 190 and polypropylene by participating in the curing process, while low molecular weight oxidized materials formed a weak boundary layer inhibiting adhesion.
Article
Engineering, Multidisciplinary
Keita Shimada, Ryuki Morita, Masayoshi Mizutani, Tsunemoto Kuriyagawa
Summary: Powder jet deposition (PJD) is a spray coating method that can be done under atmospheric pressure and room temperature. By applying an atmospheric-pressure plasma jet (APPJ) assistance, the deposition rate of PJD can be increased.
PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY
(2023)
Article
Physics, Fluids & Plasmas
Li Yang, Sishu Wang, Andong Wu, Bo Chen, Jianjun Chen, Hongbin Wang, Shuwei Chen, Jianjun Wei, Kun Zhang, Zongbiao Ye, Fujun Gou
Summary: This study investigates the use of atmospheric pressure plasma jet (APPJ) for cleaning nitrogen-containing carbon films (C-N). The results show that APPJ cleaning can effectively remove C-N films regardless of the substrate morphology. Compared to traditional methods, APPJ cleaning offers significant improvements with slight surface oxidation.
PLASMA SCIENCE & TECHNOLOGY
(2022)
Article
Physics, Applied
Li Wu, Xianyu Zhang, Tao Liu, Wencong Zhang, Junwu Tao, Fei Cheng
Summary: This Letter presents an atmospheric pressure low power microwave-induced air plasma source operating at 2.45 GHz. The device can self-ignite air and generate plasma with only 50 W microwave input power, without any additional trigger. Its sustaining power is as low as 10 W, and the gas temperature of plasma tail flame is about 32 degrees C measured by a fiber optic thermometer. Spectroscopic measurements revealed the presence of strong OH(A(2)S(+)? X-2?) bands at 306-310 nm and oxygen atomic lines O-I (3p5P? 3s5S) at 777.1 nm and O-I (3p3P?3s3S) at 844.6 nm. Furthermore, NO- ?(A(2)S(+)?X-2?(r)) from 200 to 300 nm was also detected in the air plasma jet. This portable plasma apparatus shows potential for air plasma applications in the biomedical fields.
APPLIED PHYSICS LETTERS
(2023)
Article
Physics, Fluids & Plasmas
Yutian Yu, Li Wu, Qiang Chen, Naoki Shinohara, Kama Huang
Summary: This paper presents a numerical model to simulate the motion trajectory of an atmospheric pressure plasma jet under an external nonuniform electric field. The model treats the plasma jet as equivalent particles based on its dielectric properties and motion characteristics. The model demonstrates short calculation times and excellent agreement with experimental observations, providing an effective and efficient method for predicting and controlling plasma jet motion trajectory.
Article
Engineering, Chemical
Wameedh Adress, W. G. Graham
Summary: In this study, the influences of electrode geometrical shapes on the optical properties of two non-thermal atmospheric pressure plasma jets were investigated. The results demonstrated the role of low temperature plasma in catalysis, showing a significant enhancement in conversion activity at low activation temperatures compared to conventional thermal activation.
PLASMA CHEMISTRY AND PLASMA PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
Shun Aoyama, Hiroki Nagasawa, Masakoto Kanezashi, Toshinori Tsuru
Summary: This study investigates the surface properties of methyl-terminated organosilica films modified by atmospheric-pressure water vapor plasma. Plasma modification leads to an immediate decrease in water contact angle, as methyl groups are oxidized to form oxygen-containing groups. The films show a moderate hydrophobic recovery after certain treatment. The changes in surface hydrophilicity during long-term storage are attributed to the rotation of Si-OH.
