Article
Materials Science, Coatings & Films
Volker Sittinger, Sarah Baron, Markus Hoefer, Markus Armgardt, Tino Harig
Summary: The demand for highly scratch resistant transparent coatings is driven by the industrial sector of consumer goods, such as displays, touch-screens, watches, and optical instruments. Diamond coatings, with their unique properties, have great potential for optical applications. Fraunhofer IST has developed large-area HFCVD processes for depositing uniform and transparent diamond coatings on optical components, improving their resistance against abrasive wear.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Chemistry, Physical
Jung-Min Cho, Hak-Joo Lee, Young-Jin Ko, Heon-Jin Choi, Young-Joon Baik, Gyu Weon Hwang, Jong-Keuk Park, Joon Young Kwak, Jaewook Kim, Jongkil Park, YeonJoo Jeong, Inho Kim, Kyeong-Seok Lee, Wook-Seong Lee
Summary: In this paper, we present a template-free approach for synthesizing a porous diamond layer using hot-filament chemical vapor deposition (HF-CVD). The key enabling factors were found to be the seeding of the substrate with detonation nanodiamond (DND) and the relatively low substrate temperature. The resulting porous layer consisted of quasi-spherical nanodiamond particles. We also demonstrated a preliminary application of the porous diamond layer as a waveguide in an attenuated-total-reflection (ATR)-type waveguide mode resonance sensor.
SURFACES AND INTERFACES
(2022)
Article
Biochemistry & Molecular Biology
Marta Z. Pacia, Natalia Chorazy, Magdalena Sternak, Benedikt Fels, Michal Pacia, Mariusz Kepczynski, Kristina Kusche-Vihrog, Stefan Chlopicki
Summary: In this study, the role of Rac1 in TNF-induced vascular inflammation was investigated. It was found that Rac1 mediated the formation of lipid droplets and nanostructural alterations associated with vascular inflammation.
CELLULAR AND MOLECULAR LIFE SCIENCES
(2022)
Article
Materials Science, Multidisciplinary
Yue Takamori, Masatsugu Nagai, Taira Tabakoya, Yuto Nakamura, Satoshi Yamasaki, Christoph E. Nebel, Xufang Zhang, Tsubasa Matsumoto, Takao Inokuma, Norio Tokuda
Summary: In order to improve the growth rate of diamond films, single-crystalline (100) diamond films were grown using hot-filament chemical vapor deposition (HFCVD), with investigations into the methane/hydrogen concentration (CH4/H-2) and filament-temperature dependence on growth rate. The growth process was found to be governed by reactions on the filament surface, particularly the decomposition of CH4 and the formation of CH3, with an estimated activation energy of 440 kJ/mol.
DIAMOND AND RELATED MATERIALS
(2021)
Review
Chemistry, Physical
Prachi Ghoderao, Sanjay Sahare, Shern-Long Lee, Prashant Sonar
Summary: Scanning probe microscopy (SPM) is a powerful technique that allows for the observation and analysis of nanoscale materials and biological molecules through the use of sharp probes that scan the sample surface. This method, which includes scanning tunneling microscopy (STM) and atomic force microscopy (AFM), provides valuable insights into the properties and behavior of these materials at a molecular level. This review highlights the applications of SPM in biomolecule imaging and the study of physiological processes, as well as the challenges and potential solutions in biological sample preparation. It also discusses the recent advancements in STM and AFM applications on biomolecules, such as DNA, proteins, and carbohydrates, and their potential applications in fields like drug delivery and biosensors.
Article
Chemistry, Physical
Azimet A. Karluk, Sunay D. Ekim, Bilge Baytekin, H. Tarik Baytekin
Summary: In this study, a simple method based on triboelectrification was proposed for monitoring oil degradation, and its feasibility was demonstrated through experiments.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Himanshu Rai, Deepa Thakur, Deepak Kumar, Ashutosh Pitkar, Zhijiang Ye, Viswanath Balakrishnan, Nitya Nand Gosvami
Summary: The nanoscale wear behavior of monolayer WS2 was investigated using a combination of AFM and MD simulations. The critical load to initiate wear was found to be higher in the interior region compared to the edge region, and there was significant variability in critical load values in both regions. MD simulations revealed that structural defects could explain the observed difference in wear behavior.
APPLIED SURFACE SCIENCE
(2022)
Review
Engineering, Chemical
Patricia Moraille, Zahra Abdali, Mohini Ramkaran, David Polcari, Gregory S. Patience, Noemie-Manuelle Dorval Courchesne, Antonella Badia
Summary: Atomic force microscopy (AFM) is a microscopy technique that allows high-resolution imaging of surface topography and characterization of material properties. AFM offers various imaging modes and can simultaneously measure the physical and chemical properties of materials. Recent advances combine AFM with infrared spectroscopy to enable simultaneous mapping of surface topography and chemical species distribution.
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Yuan Zhang, Daniel J. Trainer, Badri Narayanan, Yang Li, Anh T. Ngo, Sushila Khadka, Arnab Neogi, Brandon Fisher, Larry A. Curtiss, Subramanian K. R. S. Sankaranarayanan, Saw Wai Hla
Summary: By using a q+ atomic force microscopy at low temperature, researchers observed lateral force anisotropy of a sexiphenyl molecule moving on an atomically flat Ag(111) surface. The one-dimensional shape of the molecule was identified as the origin of this phenomenon, which was confirmed through molecular dynamics simulations. This finding may have significant implications for atomic scale frictional phenomena on materials surfaces.
Article
Anatomy & Morphology
Mert Muhammed Koc, Mustafa Oguzhan Caglayan
Summary: In this study, mechanical, tribologic, and morphological characterization of recycled polypropylene beads were conducted using force spectroscopy and lateral-force microscopy. The results showed a significant correlation between grain size and compression-elastic moduli of the beads. Friction-maps of the beads were obtained through lateral-force microscopy for 25 square micrometer scanning areas.
MICROSCOPY RESEARCH AND TECHNIQUE
(2022)
Article
Chemistry, Physical
Rinat Ismagilov, Sergei Malykhin, Aleksey Puzyr, Artem Loginov, Victor Kleshch, Alexander Obraztsov
Summary: This study compared single-crystal diamond pyramids produced using hot-filament chemical vapor deposition (CVD) and thermal oxidation processes with those produced using plasma-enhanced (PE) CVD. The similarities in morphology, Raman, and photoluminescent characteristics were discussed in connection with the diamond film growth mechanism. The experimental results demonstrated the potential for mass production of single-crystal needle-like diamonds using the HF CVD method, highlighting their practical application.
Article
Chemistry, Multidisciplinary
Nicolas Neel, Joerg Kroeger
Summary: The study revealed that the formation of a chemical bond between a CO molecule and a Cu(111) surface is accompanied by bending of the molecular probe due to van der Waals attraction and Pauli repulsion, resulting in characteristic changes in the vertical force between CO and Cu(111) as a function of molecule-surface distance. Experimental data were successfully reproduced by model calculations, shedding new light on vertical-force extrema in scanning probe experiments.
Article
Materials Science, Multidisciplinary
Sabarinathan Palaniyappan, Narain Kumar Sivakumar
Summary: In this study, waste crab shells were used as fillers to develop Polyactic Acid (PLA) feedstock for 3D printing of biomaterials. The experiment showed that the 8% crab shell-reinforced PLA filaments had the highest tensile strength and the lowest diameter deviation. The surface morphology of the 8% PLA/crab shell filaments exhibited uniform distribution of added particles in the polymer matrix. Overall, the 8% PLA/crab shell filament composition is the optimal feedstock material for 3D printing of biomaterials like bio-scaffolds.
Article
Chemistry, Physical
J. Millan-Barba, H. Bakkali, F. Lloret, M. Gutierrez, R. Guzman de Villoria, M. Dominguez, K. Haenen, D. Araujo
Summary: This study proposes the use of polycrystalline boron doped diamond (BDD) as a coating for carbon fibers to improve their electrical properties. Electrical characterization and microanalysis showed that the BDD coating significantly enhances the electrical conductivity of carbon fibers.
APPLIED SURFACE SCIENCE
(2023)
Article
Physics, Multidisciplinary
Thomas Hofmann, Xinguo Ren, Alfred J. Weymouth, Daniel Meuer, Alexander Liebig, Andrea Donarini, Franz J. Giessibl
Summary: This study presents a method for the transition from graphite to diamond on the atomic scale and reveals the local rehybridization of the structure during this transition. The experimental observation of harmonics at specific thresholds and force reduction provides evidence for the existence of this transition.
NEW JOURNAL OF PHYSICS
(2022)
Article
Chemistry, Physical
Niranjan Kumar, Roman S. Pleshkov, Aleksey Nezhdanov, Vladimir N. Polkovnikov, Pavel A. Yunin, Nikolay Chkhalo, Aleksandr Mashin
Summary: Raman scattering studies showed that increasing the thickness of periodic Be layers can enhance crystallinity, but may also lead to an increase in bond-order defects during thermal annealing. Beyond the critical annealing temperature of 573 K, a complete transformation from crystalline to ultrashort-ranged amorphous Be phase was observed.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Chemistry, Physical
Niranjan Kumar, Aleksey V. Nezhdanov, Sergey A. Garakhin, Ruslan M. Smertin, Pavel A. Yunin, Vladimir N. Polkovnikov, Nikolay I. Chkhalo, Aleksandr I. Mashin
Summary: The physical properties and stress analysis of Si layers embedded in bi-layer periodic Mo/Si and W/Si multilayer mirrors were investigated by Raman scattering. It was found that the alternate Si layers in these multilayers were in the amorphous phase, with the TO phonon mode shifting and linewidth changing with thickness and thermal annealing. The reduction of period thickness in thermally annealed multilayers led to changes in the reflection properties of mirrors.
SURFACES AND INTERFACES
(2021)
Article
Physics, Applied
Niranjan Kumar, Aleksey Nezhdanov, Sergey A. Garakhin, Pavel A. Yunin, Vladimir N. Polkovnikov, Nikolay Chkhalo, Aleksandr Mashin
Summary: The crystallinity of the tungsten phase in the multilayer structure was improved with an increase in the thickness of this layer. Both alpha- and beta-W phases were grown simultaneously, and their contribution was modified by the thickness of the W layers. The size of the crystallites in these phases was linearly proportional to the thickness of the W layers. Raman scattering showed a decrease in the deviation of Si-Si bonding with an increase in the thickness of the Si layers, indicating an ordering phenomenon.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Rajitha Rajan, T. R. Ravindran, Nagarjuna Kommu, Anuj A. Vargeese, P. Anees, V. Venkatesan, V Srihari
Summary: The new explosive BDNAPM shows high thermal stability and insensitivity towards impact and friction, making it suitable for mining and fracking industries. Through calculations and experiments, it is found that BDNAPM undergoes structural phase transformation under high pressure, accompanied by changes in hydrogen bonding and molecule reorientation.
JOURNAL OF MATERIALS SCIENCE
(2022)
Article
Physics, Applied
Niranjan Kumar, Galina D. Antisheva, Aleksey Nezhdanov, Mikhail N. Drozdov, Roman S. Pleshkov, Pavel A. Yunin, Vladimir N. Polkovnikov, Nikolay Chkhalo
Summary: The ambient atmospheric thermal stability of beryllium layers in Be/Mo and Be/W multilayer mirrors was investigated. It was found that with increasing thermal annealing temperature, the crystalline quality of the beryllium layers deteriorated, while beryllium embedded within tungsten showed good thermal stability.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Article
Chemistry, Physical
K. K. Mishra, K. K. Pandey, Sree K. A. Raj, Chandra Sekhar Rout, T. R. Ravindran, Sharat Chandra, Ram S. Katiyar
Summary: In this study, the structural, vibrational, and electronic properties of vanadium diselenide (VSe2) nanosheets were investigated under pressures up to 33 GPa using a diamond anvil cell. The results showed a structural transition from a metallic trigonal phase to a metallic monoclinic phase at around 7 GPa, consistent with theoretical calculations. The nanosheets recovered their original structure upon decompression. Raman spectroscopy studies identified phonon modes that exhibited normal hardening and phase instability at around 7 GPa. These findings have implications for the calibration and development of nanodevices using VSe2 nanosheets under extreme stress conditions.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Physical
Niranjan Kumar, Roman S. Pleshkov, B. S. Prathibha, Vladimir N. Polkovnikov, Nikolay I. Chkhalo, Vladimir A. Golyashov, Oleg E. Tereshchenko
Summary: Depth-resolved X-ray photoelectron spectroscopy was used to investigate the surface and subsurface oxidation of Be/Al periodic multilayer mirrors exposed in ambient atmosphere. The thicker layer of Al exhibited lower oxidation contribution due to its lower chemical reactivity. The analysis of chemical shifts revealed the presence of metal-hydroxide (BeOH/AlOH) and metal-oxide (BeOx/AlOx) bonding in the subsurface and surface regions, respectively.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Imran Uddin, Shaik M. Abzal, Kurapati Kalyan, Sailakshmi Janga, Ashutosh Rath, Rajkumar Patel, Deepak K. Gupta, T. R. Ravindran, Hira Ateeq, Mohd Sajid Khan, Jatis K. Dash
Summary: In this study, starch-stabilized bismuth sulfide nanoparticles were synthesized and characterized. The nanoparticles showed stable properties, quasispherical shape, and inhibitory effects on bacterial strains.
Article
Physics, Applied
Niranjan Kumar, Ruslan M. Smertin, B. S. Prathibha, Aleksey Nezhdanov, Mikhail N. Drozdov, Vladimir N. Polkovnikov, Nikolay Chkhalo
Summary: By changing the pressure of sputtering Ar gas, periodic multilayer mirrors composed of Si/B4C were deposited to obtain mirrors with minimal residual stress. The microstructure and phase compositions of Si and B4C were manipulated, affecting the stress in the mirrors. The minimum stress was achieved at higher pressure, leading to the formation of amorphous boron, B4C, free carbon atoms, and amorphous carbon structure. The effects of stress on the mirrors were confirmed through Raman spectroscopy and curvature measurement.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2023)
Article
Physics, Multidisciplinary
Niranjan Kumar, Aleksey V. Nezhdanov, Ruslan M. Smertin, Vladimir N. Polkovnikov, Nikolay I. Chkhalo
Summary: The stability of the microstructure of Si/Be multilayer mirrors at high operating temperature was studied using Raman scattering spectroscopy. The study found that with an increase in thermal annealing temperature, the frequency of the transverse optical (TO) mode of silicon and beryllium layers shifted to lower values, and the linewidth became narrow, confirming the structural ordering. However, no volumetric change in the period of the mirror was observed based on X-ray reflectance measurement, indicating the stability of the structure without a change in volume.
INDIAN JOURNAL OF PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Alexey T. Kozakov, Niranjan Kumar, Valery G. Vlasenko, Iliya Pankov, Vadim A. Volochaev, Anton A. Scrjabin, Anatoly Nikolskii, Aleksey Nezhdanov, Ruslan M. Smertin, Vladimir N. Polkovnikov, Nikolay Chkhalo
Summary: The phase composition of periodic Mo/Si multilayers with varying thicknesses of silicon and molybdenum layers, and bilayer films with different combinations of Mo-on-Si and Si-on-Mo with varying thicknesses of the upper layers were investigated. X-ray diffraction and high-resolution transmission electron microscopy were used to study the phases and microstructure of the multilayers. X-ray photoelectron spectroscopy was performed to investigate the electronic structure and phase composition of the bilayer films. Differences were observed in the specific phases formed in the Mo-on-Si and Si-on-Mo sequences compared to the bilayer systems. Furthermore, the amorphous silicon layer in periodic multilayers was found to be more disordered than the amorphous silicon layer in the bilayer films, which can be attributed to the formation of specific silicide phases in the multilayers.
BULLETIN OF MATERIALS SCIENCE
(2023)
Article
Chemistry, Physical
Niranjan Kumar, Aleksey Nezhdanov, Rushlan M. Smertin, Vladimir N. Polkovnikov, Nikolay Chkhalo, Vladimir A. Golyashov, Oleg E. Tereshchenko
Summary: Microstructural properties of beryllium and silicon in periodic multilayer mirrors Be/Si were comprehensively determined by Raman scattering, showing the evolution of Be structure from amorphous phase to polycrystalline phase with film thickness and the condensation of Si films into amorphous phase with nanocrystalline Si particles dispersed within.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Soumee Chakraborty, R. Rajitha, V. Venkatesan, Anuj A. Vargeese, R. Raja Madhavan, R. Asuvathraman, T. R. Ravindran
Summary: Temperature-dependent Brillouin and Raman spectroscopic investigations were conducted on energetic material TEX to study its elastic and phonon mode behaviors, revealing rapid reduction in elastic modulus and anomalous softening behavior of Raman bands between 20 to 80 degrees C. The high bulk modulus of TEX contributes to its lower sensitivity, but the decrease in elastic modulus may result in increased sensitivity just above room temperature.
Article
Chemistry, Physical
Niranjan Kumar, Roman S. Pleshkov, Aleksey Nezhdanov, Pavel A. Yunin, Vladimir N. Polkovnikov, Nikolay Chkhalo, Aleksandr Mashin
Summary: The study investigated thickness-dependent microstructural and phase modifications in W and Be layers of periodic W/Be multilayers. It was found that the W layers underwent phase transitions while the Be layers affected the frequency shift and linewidth of the TO phonon mode. Moreover, an increase in Be layer thickness resulted in significant compressive strain and reduced defects.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2021)
Article
Chemistry, Physical
Niranjan Kumar, Alexey T. Kozakov, Aleksey Nezhdanov, Sergey A. Garakhin, Vladimir N. Polkovnikov, Nikolay Chkhalo, Aleksandr Mashin, Anatolay Nikolskii, Anton A. Scrjabin
Summary: The study investigated the phonon and plasmon excitations as well as electronic properties of interfaces in periodic W/Si and Si/W multilayer structures. It was found that the plasmon energy in the Si layer blueshifts with decreasing thickness, and the atomic structure and elemental composition at the W/Si interface are modified accordingly with changes in Si layer thickness.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2021)
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)
