Article
Engineering, Electrical & Electronic
F. M. El-Hossary, Ahmed Ghitas, A. M. Abd El-Rahman, A. A. Ebnalwaled, M. Abdelhamid Shahat, Mohammed H. Fawey
Summary: The oxygen radio-frequency plasma technique is utilized to enhance the physical and chemical properties of graphene oxide, leading to improved functionality for electronic and solar cell applications.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Materials Science, Multidisciplinary
D. Gravis, S. Moisan, F. Poncin-Epaillard
Summary: The chemical composition and thickness of the surface are key parameters in controlling the wettability of CF, with plasma-poly(acetylene) being the most efficient plasma polymer in improving CF surface wettability.
Article
Chemistry, Applied
Aleksandra Nucia, Marta Tomczynska-Mleko, Sylwia Okon, Krzysztof Kowalczyk, Konrad Terpilowski, Salvador Perez-Huertas, Katsuyoshi Nishinari, Maciej Nastaj, Stanislaw Mleko
Summary: The research investigated how activation of glass surface by air cold plasma influences changes in the surface properties of gluten deposited on such surface. Indirect cold-plasma treatment caused modification of gluten surface, resulting in smoother surfaces with higher apparent surface free energy. This method can improve the applicability of gluten, reduce stickiness, and be used to obtain active packaging and biodegradable films with less food loss.
FOOD HYDROCOLLOIDS
(2021)
Article
Materials Science, Multidisciplinary
Donghyun Kim, Jonggu Han, Rodolphe Mauchauffe, Jongwoon Kim, Se Youn Moon
Summary: The control of surface wettability is crucial in various industrial fields, and a facile plasma deposition method is suggested in this work to achieve superhydrophobic and superhydrophilic surfaces by introducing additive gases. The addition of a small amount of N-2 or O-2 gas can dramatically change the surface morphology and chemical composition, allowing for continuous modulation of surface wettability.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Polymer Science
Alenka Vesel, Rok Zaplotnik, Gregor Primc, Miran Mozetic, Tadeja Katan, Rupert Kargl, Tamilselvan Mohan, Karin Stana Kleinschek
Summary: Functionalization of polymer surfaces using non-equilibrium gaseous plasma is desired in many applications. Different mechanisms can be achieved by using argon or oxygen plasma for modifying fluorinated polymer surfaces. The surface modification effects are influenced by the interaction of various reactive species and far ultraviolet radiation.
Article
Polymer Science
Petra Sramkova, Zlata Kelar Tucekova, Michal Fleischer, Jakub Kelar, Dusan Kovacik
Summary: The study showed that both VDBD and DCSBD plasma sources had similar effects on improving the surface of BOPP film, but VDBD treatment resulted in slightly higher surface roughness and more efficient adhesion. Comparable results were achieved for both plasma sources in terms of enhanced surface wettability, degree of oxidation, and stability of induced changes, with DCSBD having less impact on surface deterioration than VDBD.
Article
Engineering, Biomedical
Henrico Badaoui Strazzi-Sahyon, Thais Yumi Umeda Suzuki, Glivia Queiroz Lima, Juliana Aparecida Delben, Bruno Mena Cadorin, Vanessa do Nascimento, Simone Duarte, Paulo Henrique dos Santos
Summary: The study aimed to evaluate the effect of cold plasma on dentin surface characteristics under different protocols. The results showed that cold plasma treatment improved wettability, surface energy, and total free interaction energy of dentin, while maintaining surface roughness, morphology, and chemical composition. Different exposure time and distance protocols impacted the analysis of contact angle, surface energy, and total free interaction energy for each gas.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Rachel Le Brouster, Julien Giboz, Ali Nourdine, Lionel Tenchine, Nicolas Charvin, Patrice Mele
Summary: This research aims to understand the effect of adding random perfluorinated polystyrene copolymers on enhancing the hydrophobic properties of a PS matrix. The results show that the contact angle of PS/POISE-a blends increases with the additive content, mainly due to the chemical heterogeneities and the formation of crystalline fluorine-rich nodules.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Chemistry, Physical
Vimarsh Awasthi, Richa Goel, Padmnabh Rai, Satish Kumar Dubey
Summary: Surface Enhanced Raman spectroscopy (SERS) is utilized for fast and sensitive detection of trace analytes, with the design and fabrication of SERS-active substrates playing a crucial role in signal enhancement. A large-area SERS-active substrate was developed by modifying a thin gold film on silicon using argon ion irradiation, resulting in high repeatability and cost efficiency.
SURFACES AND INTERFACES
(2022)
Article
Chemistry, Analytical
R. K. Azega, Mazharul Haque, Qi Li, Omid Hosseinaei, Hans Theliander, Peter Enoksson, Per Lundgren
Summary: Lignin obtained from wood is an abundant and renewable carbon resource for energy storage, but its unfavorable processing conditions and limited performance hinder its use as supercapacitor electrodes. In this study, plasma treatment was used to enhance the electrochemical performance of lignin-based carbon fibers. The treatment increased the electrode's capacitance by 20% and improved its rate capability and energy-power performance. The introduction of desirable functional groups through plasma treatment also enhanced the long-term cycling stability and self-discharge characteristics of the device. Investigation was also conducted on the effects of different oxygen surface functional groups on the capacitive performance of the fibers under different conditions.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Claudia M. Bazan, Anouk Beraud, Minh Nguyen, Amira Bencherif, Richard Martel, Delphine Bouilly
Summary: This study presents an innovative method using a gate electrode to control the surface functionalization of graphene devices. By dynamically adjusting the gate voltage, the reaction can be quickly initiated or suppressed, resulting in a high degree of homogeneity. This work demonstrates the powerful capability of the FET platform to study surface reactions on nanomaterials in real time.
Article
Chemistry, Multidisciplinary
Jean-Francois Bryche, Marlo Vega, Agnes Tempez, Thibault Brule, Thomas Carlier, Julien Moreau, Marc Chaigneau, Paul G. Charette, Michael Canva
Summary: This work demonstrates the enhancement in plasmonic sensing efficacy by spatially-localized functionalization on nanostructured surfaces, where probe molecules are concentrated in areas of high field concentration. SERS measurements on nanostructured surfaces with homogeneous and spatially-localized functionalization with thiophenol show that the Raman signal mainly originates from high field concentration areas. TERS measurements with 10 nm spatial resolution confirm the predicted field distribution profiles.
Article
Environmental Sciences
Yu Wang, Marcello Brigante, Gilles Mailhot, David Talaga, Yanlin Wu, Wenbo Dong, Sophie Sobanska
Summary: This study investigated the photo reactivity of Ferric oxalate (Fe(III)-Ox) complex in atmospheric particles using Raman spectroscopy. It was found that the concentration of photoproduct Fe(II)-Ox was higher at the surface and inside of the droplets compared to bulk solution. Despite hindering the Fenton intermediate reaction, FeCO3, the photolysis rate of Fe(III)-Ox in droplets was significantly faster than in bulk solution. The mechanism and kinetics of Fe(III)-Ox photolysis varied between the aqueous/gas interface, inside of droplets, and bulk solution, leading to an underestimation of oxide species production from atmospheric Fe(III)-Ox droplets.
Article
Engineering, Chemical
P. Czarniak, P. Borysiuk, H. El Bayda, F. Perisse, S. Menecier
Summary: The goal of this study was to investigate the impact of Dielectric Barrier Discharge (DBD) plasma treatment on the adhesion properties of particle boards and medium density fiberboard (MDF). The results showed that the treatment improved the wettability properties of both materials, but did not increase paint penetration.
INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES
(2022)
Article
Chemistry, Physical
Nazim Aslam, Taj Muhammad Khan, Muhammad Qasim Javed, Abdur Rehman, Shahab Ahmed Abbasi, A. Shah, Muhammad Raffi
Summary: This study investigates the formation mechanisms of surface structures on silicon using single-multiple nanosecond laser pulses in different environments. Ablation in cold plasma leads to consistent grating-type structures, while in ambient air, excessive ablation results in overlapped-ripples. Increased laser shots below the focus expand the surface pattern spatially. Ablation in cold plasma shows promise for shaping and structuring industry-accepted materials for electronic and photonic devices.
SURFACES AND INTERFACES
(2023)
Article
Materials Science, Multidisciplinary
A. Mansour, F. Poncin-Epaillard, D. Debarnot
Article
Chemistry, Physical
David Gravis, Fabienne Poncin-Epaillard, Jean-Francois Coulon
APPLIED SURFACE SCIENCE
(2020)
Article
Materials Science, Multidisciplinary
H. Kebiche, F. Poncin-Epaillard, N. Haddaoui, D. Debarnot
JOURNAL OF MATERIALS SCIENCE
(2020)
Article
Physics, Applied
Thanh Hien Tran, Dominique Debarnot, Jose Ortiz, Fabienne Poncin-Epaillard
PLASMA PROCESSES AND POLYMERS
(2020)
Article
Chemistry, Physical
Fabienne Fay, Fabienne Poncin-Epaillard, Tiffany Le Norcy, Isabelle Linossier, Karine Rehel
Summary: The combination of surface energy, fluorination, and nanotopography significantly reduces the adhesion of three out of four microorganisms studied in this research, highlighting the importance of these factors in bioadhesion.
SURFACE INNOVATIONS
(2021)
Article
Materials Science, Paper & Wood
Andrii Zaitsev, Sandy Moisan, Fabienne Poncin-Epaillard
Summary: Carbon fibers are widely used in automotive, aerospace and energy industries due to their low weight and high strength. However, their significant cost and release of toxic substances during carbonization are challenges. Bio-sourced cellulose materials and eco-friendlier plasma carbonization technologies can help overcome these challenges, leading to efficient carbon fibers with good mechanical properties.
Article
Materials Science, Multidisciplinary
D. Gravis, S. Moisan, F. Poncin-Epaillard
Summary: The chemical composition and thickness of the surface are key parameters in controlling the wettability of CF, with plasma-poly(acetylene) being the most efficient plasma polymer in improving CF surface wettability.
Article
Physics, Applied
David Gravis, Gregoire Rigole, Mayssa Yengui, Wolfgang Knapp, Jean-Francois Coulon, Fabienne Poncin-Epaillard
Summary: Combining plasma-texturing and chemical functionalization can enhance Al adhesion. O-2 plasma shows the best results in generating a texture through chemical erosion, while Ar plasma mostly induces material etching.
PLASMA PROCESSES AND POLYMERS
(2021)
Article
Physics, Applied
Marisol Ji, Lazhar Benyahia, Fabienne Poncin-Epaillard
Summary: Four model plasma coatings were developed for adhesive joints of a metal/elastomer assembly using selected parameters and precursors. The adhesion strength of prepared assemblies is increasing with different functionalized layers, but mostly depends on the precursor type. Thermodynamic adhesion mechanism may prevail with surface energy closer to the elastomer one.
PLASMA PROCESSES AND POLYMERS
(2021)
Article
Materials Science, Multidisciplinary
Ronny Elleb, Thierry Engel, Frederic Antoni, Joel Fontaine, Frederic Mermet, Fabienne Poncin-Epaillard
Summary: Micro and nanometric double scale structures were created on steel material using a femtosecond laser to study surface property alterations, particularly wettability. The presence of oxides, hematite and magnetite, was found to be directly related to the energy density of the laser beam, with a mechanism explained by the combination of pre-existing models. These alterations in surface properties were analyzed from both a topological and chemical perspective, highlighting the influence of energy density on oxide formation.
JOURNAL OF MATERIALS SCIENCE
(2021)
Article
Physics, Applied
Pascal Brault, Marisol Ji, Dario Sciacqua, Fabienne Poncin-Epaillard, Johannes Berndt, Eva Kovacevic
Summary: Molecular dynamics simulations were performed to investigate the growth and properties of polymers from pure acetylene plasma, with resulting films characterized through bond order, [H]/[C] ratio, and simulated infrared spectrum, qualitatively compared with three different experiments to recover IR peak identification and positions.
PLASMA PROCESSES AND POLYMERS
(2022)
Article
Multidisciplinary Sciences
David Gravis, Nicolas Roy, Nicolas Ruffini-Ronzani, Laurent Houssiau, Alexandre Felten, Nikolay Tumanov, Olivier Deparis
Summary: Book production by medieval scriptoria has attracted increasing interest. In this study, time-of-flight secondary ion mass spectrometry (ToF-SIMS) was introduced as a non-invasive tool to identify ink compositions and parchment animal species in illuminated manuscripts. The method successfully identified both inks and animal skins, even from traces of pigments and tiny scanned areas. This approach is highly sensitive and will have extensive application in material studies of medieval manuscripts.
ROYAL SOCIETY OPEN SCIENCE
(2023)
Article
Chemistry, Physical
Jhilik Roy, Shubham Roy, Dhananjoy Mondal, Neelanjana Bag, Jaba Roy Chowdhury, Saheli Ghosh, Souravi Bardhan, Rajib Mondal, Ruma Basu, Sukhen Das
Summary: This study presents the synthesis and characterization of a gadolinium-doped bismuth ferrite piezo catalyst for the degradation of carcinogenic organic dyes and eradication of pathogenic bacteria. The piezo catalyst exhibits high polarization and demonstrates exceptional degradation efficiency under soft ultrasound stimulation. It also shows remarkable antibacterial activity and can be easily extracted using a magnetic field, making it a promising candidate for water treatment to prevent secondary pollution.
SURFACES AND INTERFACES
(2024)
Article
Chemistry, Physical
Sanggon Kim, Orisson Gomes, Ali Riaz, Mourad Roudjane, Paulo N. Lisboa-Filho, Augusto Batagin-Neto, Younes Messaddeq, Yves De Koninck
Summary: Surface-enhanced Raman spectroscopy (SERS) is a powerful tool in biophysics, bioanalytical chemistry, and biomedicine for monitoring extracellular chemical activity. However, the limited choice of SERS nanotags has hindered its practical application. This study repurposes fluorescent chemosensors as SERS nanotags, using a plasmon-induced reaction to immobilize them onto plasmonic nanostructures. The results demonstrate the successful immobilization and functionality of xanthene-based chemosensors as SERS chemosensors.
SURFACES AND INTERFACES
(2024)
Article
Chemistry, Physical
A. Fernandez Garcia, M. Garcia-Lechuga, F. Agullo Rueda, J. Rubio Zuazo, M. Manso Silvan
Summary: In this work, a method for fabricating WTe2 thin-films and controlling their conductivity using femtosecond laser post processing is presented. The synthesis of WTe2 films, characterization of their surface conductivity gradient and the demonstration of conductivity modulation using laser writing are described.
SURFACES AND INTERFACES
(2024)
Article
Chemistry, Physical
Zhaoqing Kang, Xin Li, Le Zhou, Dan Li, Jiangping Wang
Summary: Microencapsulated phase change materials (MicroPCMs) with polyethylene wax (PE-W) as nucleating agent were prepared using emulsion polymerization. The addition of PE-W significantly reduced the degree of supercooling and increased the enthalpy associated with heterogeneous nucleation in MicroPCMs. The thermal resistance of the MicroPCMs encapsulated by P(MMA-co-AMA) was greatly improved. The MicroPCMs demonstrated exceptional thermal storage and protective characteristics.
SURFACES AND INTERFACES
(2024)
Article
Chemistry, Physical
Chenliang Li, Kezhen Lv, Xiaomin Ding, Liyang Feng, Xiaolong Lv, Decai Ma
Summary: This study investigates the effect of surface termination composition and disorder on the electronic and contact properties of Janus Ti3C2FO materials, and provides new insight into the tuning of contact properties in MXenes/TMD heterostructures.
SURFACES AND INTERFACES
(2024)
Article
Chemistry, Physical
Asha Rajiv, Aruna Kapse, Varun Kumar Singh, Manender Singh Chauhan, Aishwary Awasthi, Prabhakar Singh
Summary: Surface modification of inorganic metal oxide nanoparticles with organic biopolymers has endowed these particles with multifunctional properties, making them versatile in the field of nanomedicine. In this study, magnesium oxide and chitosan modified magnesium oxide were synthesized using a green method. The antibacterial and anticancer activities of the synthesized hybrid nanomaterial were attributed to the generated reactive oxygen species. Chitosan modified magnesium oxide hybrid nanomaterial demonstrated appreciable efficacy against bacterial strains and showed significant anticancer potential against human breast cancer cells. Cytotoxicity assays on human fibroblast cells revealed high cell viability rates for both magnesium oxide and chitosan modified magnesium oxide hybrid nanomaterial. These findings suggest that chitosan modified magnesium oxide hybrid nanomaterial has promising applications in the biomedical field.
SURFACES AND INTERFACES
(2024)
Article
Chemistry, Physical
Lin Tao, Jingkai Wang, Qiuju Qin, Bingxian Chu, Pin Gao, Jiaqi Qiu, Qin Li, Xuechi Du, Lihui Dong, Bin Li
Summary: This study focuses on the modification of transition metal catalysts for the selective catalytic reduction of NO by CO. It investigates the effect of different anions on the modification of CO-SCR catalysts. The results show that the use of nitrate ions as a regulator for LDH support leads to a high NO conversion rate, surpassing the use of sulfate ions. The study also highlights the importance of anion modulation in controlling the valence state of loaded copper species. In situ DRIFTS analysis reveals the reaction mechanisms at different temperatures. Overall, this work provides new insights for the valence modulation of copper and the modification of LDH materials in CO-SCR applications.
SURFACES AND INTERFACES
(2024)
Article
Chemistry, Physical
Fan Xiao, Ming Cao, Yingbo Chen
Summary: In this study, a continuous and uniform ultra-thin polyamide (PA) membrane, ranging from 10 to 20 nm, was successfully synthesized by utilizing a UiO-66-(OH)2 n-hexane dispersion as a transition layer. The presence of the transition layer improved interface stability and facilitated bidirectional diffusion-contact reaction between the monomers, resulting in superior thinness and uniformity of the PA active layers.
SURFACES AND INTERFACES
(2024)
Article
Chemistry, Physical
Ashwini B. Rohom, Priyanka U. Londhe, Jeong In Han, Nandu B. Chaure
Summary: This study describes the synthesis and characterization of a ternary nanocomposite electrode for supercapacitors. The electrode, made of tin oxide/reduced graphene oxide wrapped with poly (3,4-ethylenedioxythiophene)-poly-(styrenesulfonate), exhibits excellent electrochemical properties and high cycling stability.
SURFACES AND INTERFACES
(2024)
Article
Chemistry, Physical
Jiayao Zhang, Danni Xue, Huan Liu, Zhao Wei, Chenjie Gu, Shuwen Zeng, Junhui Jiang, Tao Jiang, Xingfei Zhou, Kerong Wu
Summary: This study investigates the size-dependent enhancement of charge transfer resonance in semiconductors by adjusting the size of red phosphorus. The nano-sized red phosphorus achieves a three-fold enhancement in surface enhanced Raman scattering (SERS) intensity compared to nanosheets, making it a potential tool for accurate and efficient cancer marker diagnostics.
SURFACES AND INTERFACES
(2024)
Article
Chemistry, Physical
Bouhadjar Boukoussa, Khoukha Rachida Cherdouane, Rajaa Zegai, Adel Mokhtar, Mohammed Hachemaoui, Ismail Issam, Jibran Iqbal, Shashikant P. Patole, Fatima Zohra Zeggai, Rachida Hamacha, Mohamed Abboud
Summary: This work focuses on the preparation of inexpensive composite materials based on activated carbon-containing metallic nanoparticles MNPs (M = Cu, Ag, Fe). Different samples were tested as catalysts for the catalytic reduction of organic pollutants in the presence of NaBH4. The AC-Cu material exhibited good dispersion of CuNPs and showed the highest efficiency among the tested catalysts.
SURFACES AND INTERFACES
(2024)
Article
Chemistry, Physical
Changxing Yang, Guxia Wang, Qingyan Bai, Dan Li, Shengwei Guo
Summary: This study designed a simple and efficient graphene-based nanolubricant, which improved the lubrication performance of steel ball friction pairs through a three-step process. It has potential practical applications in the field of lubrication.
SURFACES AND INTERFACES
(2024)
