Article
Chemistry, Physical
Paul Braun, Philipp Gruetzmacher, Leonie Frohnapfel, Frank Muecklich, Karsten Durst
Summary: In this study, metallic substrates with a nanocrystalline grain size were structured down to the micro-and nanometre range using a room temperature nanoimprinting process. Hard metal dies patterned by Direct Laser Interference Patterning (DLIP) were used to deform the metallic substrates, transferring the pattern onto a nanocrystalline CuZn30 model alloy. The replication process allowed for the formation of separated dimples and LIPSS on the alloy surface.
APPLIED SURFACE SCIENCE
(2023)
Article
Optics
Robert Baumann, Stephan Milles, Beate Leupolt, Susann Kleber, Johannes Dahms, Andres Fabian Lasagni
Summary: This study presents an innovative method for tailoring the wettability of copper surfaces using DLIP technology, forming a pattern with a spatial period of 3.3 μm and texture depths up to 1.01 μm through laser interference. The wettability can be adjusted to static water contact angles between 120 and 150 degrees by utilizing a low-cost nanosecond laser source and innovative beam shaping setup.
OPTICS AND LASERS IN ENGINEERING
(2021)
Article
Materials Science, Multidisciplinary
Aleksander Madelung, Sabri Alamri, Tobias Steege, Benjamin Krupop, Andres Fabian Lasagni, Tim Kunze
Summary: This study addresses the fabrication of periodic microstructures on stainless steel using a galvanometer-scanner DLIP approach, evaluating the relationship between structure quality, scan field size, and spatial period of line-like patterns. Optimization of process parameters leads to surface patterns with aspect ratios greater than 1, achieving structuring speeds up to 7.69 cm(2) min(-1) with less than 0.5 W laser power at a repetition rate of 3.5 kHz.
ADVANCED ENGINEERING MATERIALS
(2021)
Article
Energy & Fuels
Wei Wang, Johannes Boneberg, Lukas Schmidt-Mende
Summary: The DLIP technique is used to improve the performance of solar cells on Sb2S3 substrates by creating large-area, periodic surface patterns. Research shows that DLIP facilitates beneficial crystallization of the Sb2S3 film, increasing light scattering and reducing recombination in the textured film, leading to a 73% increase in power conversion efficiency compared to flat film reference cells. This study is expected to provide a roadmap for the further development of photovoltaic devices based on chalcogenide semiconductors.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2021)
Article
Chemistry, Physical
Daniel Wyn Mueller, Sarah Losslein, Christoph Pauly, Max Briesenick, Guido Kickelbick, Frank Muecklich
Summary: Surface functionalization through biomimetic patterns at the micro-and nanometer scale has been widely employed in various applications. The surface properties, which depend on the morphology of the applied topographies, need to be carefully adjusted for optimal functionalization efficiency. This study investigates the role of surface modification and its impact on pattern formation in the multi-pulse ultrashort pulsed direct laser interference patterning (USP-DLIP) of Cu using a comprehensive characterization approach. The findings reveal the influence of USP-DLIP processing on both the chemistry and mechanical deformation of the substrate surface, affecting laser/material interaction and pattern morphology. Understanding these interactions allows for precise design of micro-and nanoscale patterns during USP-DLIP processing.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Bruno Henriques, Douglas Fabris, Bogdan Voisiat, Aldo R. Boccaccini, Andres Fabian Lasagni
Summary: This study investigates the influence of processing parameters on the morphology and microstructure of zirconia surfaces using direct laser interference patterning (DLIP). Homogeneous line-like patterns with varying depths, widths, and aspect ratio are successfully fabricated using proper processing parameters. Ablated regions show signs of photophysical ablation mechanism. Sub-micrometric pores and nanodroplets are registered for all conditions, while sub-micrometric cracks are developed only for higher fluences. These results have important implications for the fabrication of multifunctional zirconia surfaces for advanced biomedical and engineering applications.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
F. Fraggelakis, G. D. Tsibidis, E. Stratakis
Summary: This study investigates the fundamental mechanisms for the formation of laser-induced topographies on stainless steel using DLIP and ULP, enhancing control over the structure and providing insights into the formation process.
Article
Materials Science, Multidisciplinary
Lukas Olawsky, Stephan Moghtaderifard, Clemens Kuhn, Andres Fabian Lasagri
Summary: Direct laser interference patterning (DLIP) allows the fabrication of uniform microstructures in the sub & mu;m range. In this study, an IR camera system is used to capture the average temperature in real time during the DLIP treatment. The analysis shows a linear correlation between the applied laser fluence and the average measured temperature, as well as significant changes in surface roughness, skewness, and kurtosis within this fluence range.
Article
Nanoscience & Nanotechnology
Yun-Ran Wang, Im Sik Han, Mark Hopkinson
Summary: Regular arrays of single III-V quantum dots and quantum rings with high uniformity and good optical quality have been fabricated using molecular beam epitaxy assisted by in situ direct laser interference patterning. These structures serve as a next-generation platform for functional nanophotonic devices and contribute to the future quantum revolution.
Review
Nanoscience & Nanotechnology
Lucinda Mulko, Marcos Soldera, Andres Fabian Lasagni
Summary: Direct laser interference patterning (DLIP) is a laser-based surface structuring method known for its high throughput, flexibility, and resolution. While traditionally used for metallic surfaces, DLIP is gaining popularity in non-metallic materials for applications in fields such as photonics, optoelectronics, nanotechnology, and biomedicine. This review aims to collect and summarize the main findings and applications of DLIP on polymers, ceramics, composites, semiconductors, and other non-metals.
Article
Physics, Applied
Im Sik Han, Yun-Ran Wang, Mark Hopkinson
Summary: Highly ordered arrays of GaAs/AlGaAs quantum dots (QDs) were fabricated by droplet epitaxy using in situ direct laser interference patterning. The size distribution and optical properties of the ordered GaAs QDs were optimized by carefully choosing parameters for nucleation and droplet formation.
APPLIED PHYSICS LETTERS
(2021)
Article
Materials Science, Multidisciplinary
Florian Kuisat, Florian Roessler, Andres Fabian Lasagni
Summary: This study optimized the process of laser texturing on spherical stainless-steel parts using Direct Laser Interference Patterning, achieving improved structure homogeneity for curved geometries with the innovative hexapod positioning system.
ADVANCED ENGINEERING MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Marcos Soldera, Sabri Alamri, Paul Alexander Suermann, Tim Kunze, Andres Fabian Lasagni
Summary: The study explores the direct patterning of soda lime substrates using ps-pulsed laser radiation in the visible spectrum through non-linear absorption, producing line- and dot-like patterns with spatial periods between 2.3 and 9.0 μm and aspect ratios up to 0.29. Laser-induced periodic surface structures with a feature size of approximately 300 nm are also observed within these microstructures. Treated surfaces exhibit significantly modified properties, with increased hydrophilic behavior and the ability to act as relief diffraction gratings splitting incident light into diffraction modes.
Article
Materials Science, Multidisciplinary
Nikolai Schroeder, Christoph Fischer, Marcos Soldera, Bogdan Voisiat, Andres Fabian Lasagni
Summary: Process monitoring is a crucial strategy in laser-based manufacturing to improve reliability, efficiency, and economic profit. Laser surface texturing workstations utilize monitoring techniques to analyze surface topography and enhance the quality of produced workpieces. In this study, dot-like periodic surface structures were fabricated on stainless steel samples using direct laser interference patterning (DLIP). A scatterometry-based measurement device was used to indirectly determine the depth and period of the topography. The estimated average depth and spatial period of the dot-like structures had relative errors below 15% and 2% respectively. This new process monitoring approach greatly enhances quality assurance in DLIP processing.
ADVANCED ENGINEERING MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Mikhael El-Khoury, Marko Seifert, Sven Bretschneider, Martin Zawischa, Tobias Steege, Sabri Alamri, Andres Fabian Lasagni, Tim Kunze
Summary: In this study, a hybrid process was proposed to increase the hardness and wear resistance of laser-generated surface textures through a laser heat treatment. The process involved Direct Laser Interference Patterning to create well-defined periodic surface features on bearing steel, followed by a laser-hardening process. The hybrid approach resulted in significantly improved wear resistance of the surface patterns in harsh environments.
Article
Engineering, Biomedical
Laura M. S. dos Santos, Jonathas M. de Oliveira, Elaine C. O. da Silva, Vitor M. L. Fonseca, Juliane P. Silva, Emiliano Barreto, Noelio Oliveira Dantas, Anielle C. A. Silva, Alcenisio J. Jesus-Silva, Cleber R. Mendonca, Eduardo J. S. Fonseca
Summary: Microgrooved surfaces created by femtosecond laser writing technique were investigated for their mechanical and morphological effects on osteoblast cells. Circular microgrooves were found to enhance osteoblast alignment and stiffness, while the incorporation of TiO2 nanocrystals further improved the effects of circular microgrooves.
JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART A
(2023)
Article
Chemistry, Physical
Robert Baumann, Yasmine Bouraoui, Uwe Teicher, Erik Selbmann, Steffen Ihlenfeldt, Andres Fabian Lasagni
Summary: In the context of societal development, manufacturers in the metal industries are increasingly concerned about sustainability. This study explores the use of laser interference patterning to texture cutting tools, aiming to reduce energy consumption and material waste. The textured tools showed improved tribological performance in turning experiments, with a 17% decrease in machining forces and a 31% decrease in surface roughness of the aluminum work piece compared to untreated tools.
Article
Nanoscience & Nanotechnology
Lukas Krause, Katarzyna Skibinska, Hannes Rox, Robert Baumann, Mateusz M. Marzec, Xuegeng Yang, Gerd Mutschke, Piotr Zabinski, Andres Fabian Lasagni, Kerstin Eckert
Summary: Emerging manufacturing technologies allow for the design of electrocatalyst morphology on the nanoscale to improve efficiency in electrolysis processes. This study investigates the impact of electrode-attached hydrogen bubbles on electrode performance, depending on surface morphology and wettability. Nickel-based electrocatalysts with hydrophilic and hydrophobic nanostructures are manufactured and their surface properties are characterized. Despite a larger electrochemically active surface area, electrochemical analysis shows that samples with more pronounced hydrophobic properties perform worse at industrially relevant current densities. High-speed imaging reveals larger bubble detachment radii with higher hydrophobicity, indicating that gas blockage outweighs the benefits of nanostructuring. Additionally, a slight decrease in bubble size of 7.5% is observed with an increase in current density in 1 M KOH.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Materials Science, Multidisciplinary
Kangfa Deng, Qihao Zhang, Yangxi Fu, Andres Fabian Lasagni, Heiko Reith, Kornelius Nielsch
Summary: This article presents a novel fabrication technique named PowderMEMS for high-performance, low-cost TE films and micro-patterns. The TE film is composed of agglomerated micro-sized N-type Bi2Te2.5Se0.5 powders with a molten binder of bismuth (Bi). The influence of key process parameters on TE performance is investigated, and the TE film exhibits a maximum power factor of 1.7 mW m-1K-2 at room temperature, the highest value reported so far.
ADVANCED ENGINEERING MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Herman Heffner, Marcos Soldera, Fabian Raenke, Andres Fabian Lasagni
Summary: The direct laser interference patterning (DLIP) method is used to control the surface morphology, optical, and electrical properties of fluorine-doped tin oxide (FTO) in order to optimize the efficiency of solar cells. The study reveals the presence of periodic line-like microstructures on the FTO surface, with a period of 3.0 μm and heights ranging from 20 to 185 nm. The generated micro- and nanostructures result in a significant increase in optical transmittance, suggesting that DLIP is a convenient technique for structuring electrodes for highly efficient optoelectronic devices.
ADVANCED ENGINEERING MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Bjoern Michelberger, Frederic Schell, Dirk Jaitner, Andreas Goetze, Beate Leupolt, Franz-Josef Wetzel, Andreas Leson, Andres F. Lasagni
Summary: Internal combustion engines are subject to increasing regulations on efficiency and environmental impact, necessitating advanced optimization strategies for engine components. Previous studies have shown that amorphous carbon coatings can significantly improve the friction properties of piston rings. This study further optimizes the tribology by fabricating microchannels on the coating using laser interference, resulting in a significant reduction in piston assembly friction. Subsequent simulations demonstrate that the friction changes are due to the compression ring microtexture, which increases hydrodynamic pressure and reduces losses.
ADVANCED ENGINEERING MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Nikolai Schroeder, Christoph Fischer, Marcos Soldera, Bogdan Voisiat, Andres Fabian Lasagni
Summary: Process monitoring is a crucial strategy in laser-based manufacturing to improve reliability, efficiency, and economic profit. Laser surface texturing workstations utilize monitoring techniques to analyze surface topography and enhance the quality of produced workpieces. In this study, dot-like periodic surface structures were fabricated on stainless steel samples using direct laser interference patterning (DLIP). A scatterometry-based measurement device was used to indirectly determine the depth and period of the topography. The estimated average depth and spatial period of the dot-like structures had relative errors below 15% and 2% respectively. This new process monitoring approach greatly enhances quality assurance in DLIP processing.
ADVANCED ENGINEERING MATERIALS
(2023)
Correction
Physics, Applied
Kelly T. T. Paula, Sabrina N. C. Santos, Murilo H. M. Facure, Francineide L. Araujo, Marcelo B. Andrade, Daniel S. Correa, Cleber R. Mendonca
JOURNAL OF APPLIED PHYSICS
(2023)
Article
Chemistry, Physical
Joao V. P. Valverde, Andre G. Pelosi, Leandro H. Zucolotto Cocca, Orlando D. Marbello, Julie le Bescont, Chloe Breton-Patient, Sandrine Piguel, Daniel L. Silva, Leonardo De Boni, Cleber R. Mendonca
Summary: In this study, spectroscopic measurements were conducted on seven imidazo[1,2-a]pyridine derivatives with different peripheral groups to investigate their influence on the two-photon absorption (2PA) cross-section. The results revealed that introducing a naphthalene substituent led to an approximately seven-fold increase in the 2PA cross-section, indicating the effective enhancement of molecular conjugation. Similarly, when groups with strong electron withdrawing or donating characteristics were linked to the imidazo[1,2-a]pyridine core, the same outcome was observed. These findings suggest a potential approach to achieving significant nonlinear optical responses in this class of organic compounds.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Materials Science, Multidisciplinary
Bruno Henriques, Douglas Fabris, Bogdan Voisiat, Andres Fabian Lasagni
Summary: In this study, the influence of laser processing parameters on the production of functional multi-scale PEEK surfaces using Direct Laser Interference Patterning (DLIP) technology was investigated. An infrared ultra-short pulsed laser source and a two-beam interference setup were utilized. The fabricated structures were characterized by Scanning Electron Microscopy and Confocal Microscopy, revealing the formation of line-like main structures with a periodic spatial repetition of 5 μm and secondary structures perpendicular to the main structures with a periodicity of approximately 1 μm (LIPSS) at DLIP maxima positions.
Article
Biochemistry & Molecular Biology
Andre Gasparotto Pelosi, Eli Silveira-Alves Jr, Leandro Henrique Zucolotto Cocca, Joao Victor Valverde, Guilherme Roberto Oliveira, Daniel Luiz da Silva, Leonardo De Boni, Pablo Jose Goncalves, Cleber Renato Mendonca
Summary: This study investigates the impact of different electron-withdrawing and electron-donating groups on the linear and nonlinear optical properties of acetamide-chalcone derivatives. The addition of the dimethylamine group significantly enhances the fluorescence emission, making it suitable for biological applications. It also increases the two-photon absorption cross-section of the lower energy band. Quantum Chemistry Calculations (QCCs) and Sum-Over-States (SOS) approach are used to confirm the observed electronic states and model the experimental data.
Article
Nanoscience & Nanotechnology
Lucinda E. Mulko, Emma A. Cuello, Robert Baumann, Anthony R. Ramuglia, Inez M. Weidinger, Diego F. Acevedo, Cesar A. Barbero, Maria Molina, Andres Fabian Lasagni
Summary: In this study, a polyacrylamide graphene oxide hydrogel composite (GO@pAAm) was photo-converted and structured by ultra-short laser irradiation using a direct laser writing (DLW) approach. The laser structure generated surface foaming and patterning, enhanced selective water-swelling microdomains, and effective photo-reduction of graphene oxide. The reduction of graphene oxide was evidenced by changes in the Raman spectroscopy signals. Macroscopically, the conductivity of the material increased, suggesting a reduction in sheet resistance.
Article
Chemistry, Multidisciplinary
Felix Bouchard, Marcos Soldera, Andres Fabian Lasagni
Summary: This study investigates the wetting behavior of microstructured polyethylene terephthalate (PET) foils produced by plate-to-plate hot embossing for polar and nonpolar liquids. Stainless steel plates with single-scaled and hierarchical textures created by direct laser writing and two-beam direct laser interference patterning are used as stamps for the embossing step. The imprinted microstructures, consisting of pillar- and line-like textures, exhibit increased water contact angles and superoleophilic behavior. Time-resolved measurements reveal rapid oil droplet spreading on the hierarchical textures up to velocities of 1.4 mm(2) s(-1). This functionalization of PET foils opens up new possibilities for various industrial applications such as using oil-based paints instead of solvent-based ones, improving lubricant distribution in mechanical components, or oil-water separation in maritime environments.
ADVANCED MATERIALS INTERFACES
(2023)
Article
Chemistry, Analytical
Frederic Schell, Richard Chukwudi Okafor, Tobias Steege, Sabri Alamri, Savan Ghevariya, Christoph Zwahr, Andres F. Lasagni
Summary: This study presents a microscopic approach to increasing surface area by using periodic surface structures. The experiments show that microstructures with a periodic distance of 8.5 μm fabricated using nanosecond-pulsed infrared laser can significantly increase the surface area and improve heat dissipation efficiency.
Article
Materials Science, Multidisciplinary
Bruno Henriques, Douglas Fabris, Bogdan Voisiat, Andres Fabian Lasagni
Summary: In this study, micrometric structures were fabricated on the surface of Cobalt-Chromium-Molybdenum and AZ91D magnesium alloys using the technique of Direct Laser Interference Patterning (DLIP). The surface topography, morphology, and chemical modifications were analyzed using Confocal Microscopy, Scanning Electron Microscopy, and Energy Dispersive Spectroscopy (EDS), respectively. Varying laser fluence and pulse overlap showed their influence on the final structure, with deeper structures achieved for higher energy levels. The results provide new perspectives on the fabrication of microtextures on the surface of CoCrMo and AZ91D using DLIP.
Article
Chemistry, Physical
Qi-Wen Chen, Ze-Qing Guo, Jian-Ping Zhou
Summary: Multifunctional continuous solid solutions NFMTO-x were successfully synthesized via a one-step hydrothermal method by controlling the ratio of Mg and Fe. The NFMTO-x materials exhibited enhanced visible light response, effective adsorption and photocatalytic degradation of organic pollutants, CO2 methanation capability, and easy recyclability due to their magnetic properties. This research provides a significant multifunctional material for water purification.
APPLIED SURFACE SCIENCE
(2024)
Review
Chemistry, Physical
George E. Stan, Maziar Montazerian, Adam Shearer, Bryan W. Stuart, Francesco Baino, John C. Mauro, Jose M. F. Ferreira
Summary: Bioactive glasses have the ability to form strong bonds with tissues and release therapeutic ions. However, their biomechanical compatibility limits their use in load-bearing applications. The use of magnetron sputtering technology to fabricate BG coatings shows promise in improving their efficacy and potential for application.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zhaoxuan Wang, Zhicheng Yan, Zhigang Qi, Yu Feng, Qi Chen, Ziqi Song, Meng Huang, Peng Jia, Ki Buem Kim, Weimin Wang
Summary: The corrosion behavior of Fe-60 and Fe-83 ribbons in 0.6 M NaCl was studied. Fe-60 exhibited a local corrosion mode and formed a stable passivation film with higher corrosion resistance, while Fe-83 showed a combination of local and global corrosion modes and had lower corrosion resistance. Controlling the precipitation of nanocrystalline phases and increasing the POx content in the passivation film significantly improved the corrosion resistance of Fe-based glassy alloys.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hao-Kai Peng, Sheng-Yen Zheng, Wei-Ning Kao, Ting-Chieh Lai, Kai-Sheun Lee, Yung- Hsien Wu
Summary: This study investigates the effects of high energy/fluence proton radiation on the performance of HfZrOx-based FeFETs memory with different Zr content. The results show that the characteristics of FeFETs are influenced by proton radiation, and the extent of the influence depends on the Zr content. FeFETs with 50% Zr content exhibit minimal changes in memory window and demonstrate good endurance and retention performance.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zongyi Yue, Guangyi Wang, Zengguang Huang, Sihua Zhong
Summary: In this study, AZO and ITO films were successfully tuned as excellent passivation layers for c-Si surfaces, achieving effective minority carrier lifetime and outstanding optical properties through the optimization of annealing temperature and interfacial silicon oxide.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Martin Hruska, Jan Kejzlar, Jaroslav Otta, Premysl Fitl, Michal Novotny, Jakub Cizek, Oksana Melikhova, Matej Micusik, Peter Machata, Martin Vrnata
Summary: This paper presents a detailed study on the hydrogen sensing capabilities of highly nanoporous black gold films. The films exhibit fast response and recovery times at low temperatures. Different levels of nanoporosity were prepared and tested to investigate the sensing properties, and it was found that nanoporous black gold is suitable for hydrogen sensing. The sensitivity of the film depends on its nanoporosity.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yupu Wang, Gaofeng Teng, Chun To Yiu, Junyi Zhu
Summary: In the study of BM-SCO and HSCO thin films, it was found that H vacancies tend to prefer sites near the external surface or oxygen vacancy channels (OVCs), while H interstitials prefer sites of oxygen on a layer that contains six-fold coordinated Co. These findings not only enrich the understanding of complex surface phenomena of defect formation but also provide an explanation for the reversibility during phase transformation.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jiafeng Lu, Linping Teng, Qinxiao Zhai, Chunhua Wang, Matthieu Lancry, Ye Dai, Xianglong Zeng
Summary: In this study, we achieved full control of fiber nanograting orientation by manipulating laser polarization, and tailored space variant fiber nanogratings, which expanded the diversity in fiber nanograting engineering.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yibo Liu, Yujie Tao, Yue Liu, Qi Sun, Qinrong Lin, Kexin Kang, Qinghua Zhang, Qingjie Sun
Summary: This study investigates the wettability of the Ti-Cu-Fe multi-metal system, specifically the wetting behaviors of CuSi3 droplets on TC4 and 304SS plates. The results show that the CO2 + Ar gas atmosphere significantly affects interfacial mass transfer, thus influencing the wettability of the systems.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jimei Liu, Fei Wang, Rong Guo, Yuqi Liu, Mengyu Zhang, Jaka Sunarso, Dong Liu
Summary: This study developed Co/MXene composites with anti-corrosion properties by varying the cobalt content. These composites exhibited remarkable electromagnetic absorption performance and high resistance to corrosion under various corrosive conditions. The study also revealed the mechanism of electron transfer from cobalt to MXene and the electromagnetic dissipation behavior originated from polarization loss alone.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Moujie Huang, Yongsong Ma, Jingbo Yang, Lingyun Xu, Hangqi Yang, Miao Wang, Xin Ma, Xin Xia, Junhao Yang, Deli Wang, Chuang Peng
Summary: Strong metal-support interactions (SMSIs) are important for enhancing catalytic activities and stability in thermal catalysis. This study demonstrates a method to create SMSIs in electrocatalysis using carbon nanotubes and Ru nanoparticles, resulting in excellent catalytic activity and stability.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Ravi Trivedi, Brinti Mondal, Nandini Garg, Brahmananda Chakraborty
Summary: This study explores the potential of biphenylene as a nanocarrier for the delivery of the anticancer drug cisplatin. It is found that biphenylene offers physical stability, rapid release rate, solubility, and bio-compatibilities compared to other nanocarriers. The adsorption of cisplatin on the surface of biphenylene involves charge transfer from cisplatin to biphenylene. The drug is shown to be released at body temperature in an acidic environment. Biphenylene also exhibits excellent cytotoxicity activity and cellular uptake of the drug. Overall, biphenylene shows promise as a potential nanocarrier for cisplatin delivery.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hyun Jeong, Hyeong Chan Suh, Ga Hyun Cho, Rafael Salas-Montiel, Hayoung Ko, Ki Kang Kim, Mun Seok Jeong
Summary: In this study, a potential platform to enhance Raman scattering and increase the number of observable Raman modes in monolayer transition metal dichalcogenides (TMDs) was proposed. The platform consisted of large-scale arrays of gold micropillars (MPs), which were able to enhance the Raman intensity of TMDs and make difficult-to-detect Raman modes observable. The platform showed great industrial advantages and wide applicability due to its low cost, simple process, large controllable area, and short process time.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yasir Abbas, Shafqat Ali, Sajjad Ali, Waqar Azeem, Zareen Zuhra, Haoliang Wang, Mohamed Bououdina, Zhenzhong Sun
Summary: In this study, FeOx@SPNO-C core-shell nanospheres as a catalyst for degradation of sulfamethoxazole (SMX) were successfully synthesized. The synergistic interaction between FeOx and SPNO-C, high carbon charge density, and the presence of C = O groups and N/Fe-Nx sites were found to be key factors for the enhanced degradation of SMX.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Qiaoting Yang, Yuxiao Gong, Yan Qian, Zhou-Qing Xiao, Serge Cosnier, Xue-Ji Zhang, Robert S. Marks, Dan Shan
Summary: This study proposes a hierarchical confinement strategy to design Prussian blue nanoparticles (PB NPs) with satisfactory electrocatalytic ability and stability. The catalytic synthesis of PB NPs is achieved through a hydrothermal process, and the as-prepared PB@NH2MIL exhibits efficient electronic transmission and enhanced electrocatalytic properties.
APPLIED SURFACE SCIENCE
(2024)
