Article
Chemistry, Multidisciplinary
Dou Ning, Wenjie Lu, Xian Luo, Yanqing Yang, Bin Huang
Summary: In this study, a gradient nanostructure (GNS) was fabricated in an equiatomic CrCoNi medium-entropy alloy by high-energy shot peening (HESP). The microstructures of the GNS samples at different depths within the deformed layer were investigated in detail. The deformation process was mainly influenced by the interaction between dislocations and deformation twins due to the low stacking fault energy (SFE) of the alloy. The formation of the nanocrystalline structure involved three stages: coarse-grained deformation, ultrafine grain deformation, and nanocrystalline deformation.
Article
Materials Science, Multidisciplinary
H. T. Jeong, W. J. Kim
Summary: In this study, a high-entropy alloy was cold rolled using the differential speed rolling technique, and it was found that increasing the speed ratio led to improved microstructure and tensile properties.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Chaowei Zheng, Ying Wang, Junsong Jin, Pan Gong, Xinyun Wang, Hongning Wen, Mao Zhang
Summary: The recrystallization and grain growth behavior of CoCrFeMnNi high-entropy alloys (HEAs) under different plastic deformation conditions were studied. Experimental results showed that pre-deformation promoted the recrystallization rate and degree, while higher deformation resulted in smaller annealed grain size. Severe deformation and low annealing temperature were beneficial for grain refinement. Static recrystallization model and improved grain growth model were developed to predict the recrystallization fraction and annealed grain size under different deformation and annealing conditions.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Multidisciplinary
S. Picak, T. Wegener, S. Sajadifar, C. Sobrero, J. Richter, H. Kim, T. Niendorf, I Karaman
Summary: In this study, the yield strength of High Entropy Alloy CoCrFeMnNi was improved through Equal Channel Angular Pressing (ECAP), resulting in very high yield strength levels and superior fatigue life at low strain amplitudes. The refined grain size, high density dislocation walls, and dislocation annihilation were identified as key factors governing the fatigue life and hardening behavior of the alloy.
Article
Materials Science, Multidisciplinary
Farahnaz Haftlang, Alireza Zargaran, Sujung Son, Sunghak Lee, Soon-Jik Hong, Hyoung Seop Kim
Summary: In this study, the tribological performance of V10Cr10Fe45Co30Ni5 high entropy alloy (HEA) was investigated, and its relationship with the subsurface deformed area and the superficial tribo-layer were explored. The results showed that the surface and subsurface structures of the alloy changed with the applied load, leading to enhanced hardness and the formation of a protective tribo-oxide layer.
MATERIALS & DESIGN
(2022)
Article
Automation & Control Systems
Nanyang Zhu, Chaoyang Sun, Lingyun Qian, Mingjia Wang, Xintong Li
Summary: This study proposes a new variable circular channel angular extrusion (VCCAE) process for manufacturing magnesium alloy plates with rib-web structure. The feasibility and accuracy of the process are validated through numerical simulations and experiments. The results show that stress and strain distribution in the longitudinal section is highly inhomogeneous, with significant stress concentration at the shear plane. The microstructure in the angular region is more uniform and finer, indicating that severe shear deformation induced by the angular channel promotes deformation uniformity and grain refinement.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Xiao-Tong Li, Xiao-Zhi Tang, Ya-Fang Guo, Haoyu Li, Yue Fan
Summary: Using a self-propelling atomistic algorithm, we investigated the atomic reconfiguration ensembles near grain boundaries (GBs) in CoCrFeMnNi high-entropy alloys (HEAs) and their sensitivities to various chemo-mechanical conditions. We discovered two distinct modes, collective and random, dictated by multiple factors, and found that Fe promotes collective events and facilitates slip activities near GBs, while Cr suppresses the emission of partial dislocations. These findings suggest promising solutions for enhancing the tunability of HEAs' mechanical behaviors.
Article
Engineering, Chemical
Cheenepalli Nagarjuna, Kwang Yong Jeong, Yeeun Lee, Shin Min Woo, Sun Ig Hong, Hyoung Seop Kim, Soon-Jik Hong
Summary: In this study, an equiatomic CoCrFeMnNi high entropy alloy (HEA) was fabricated by a rapid solidification gas atomization process and further refined by high-energy mechanical milling. The results showed that the powder morphology changed significantly with increasing milling time and the HEA exhibited improved hardness and compressive yield strength. The 60 min milled HEA demonstrated the lowest coefficient of friction and specific wear rate, indicating that the developed powder metallurgy approach has the potential to enhance the strength and wear resistance of HEAs.
ADVANCED POWDER TECHNOLOGY
(2022)
Article
Chemistry, Physical
Y. C. Liao, P. S. Chen, P. H. Tsai, J. S. C. Jang, K. C. Hsieh, H. W. Chang, C. Y. Chen, J. C. Huang, H. J. Wu, Y. C. Lo, C. W. Huang, I. Y. Tsao
Summary: In this study, the Ti-65 alloy was processed through a series of thermomechanical treatments, which resulted in significant grain refinement and enhancement of tensile strength, demonstrating good strength-ductility synergy.
Article
Materials Science, Multidisciplinary
Jonas Ostby, Lisa Toller-Nordstrom, Susanne Norgren
Summary: This paper investigates the mechanisms of binder phase lamella formation in hardmetal inserts used in face turning. The distribution of lamellae orientations has been measured for used and pristine inserts and correlated with the direction of applied stress calculated through FEM analysis. Additionally, more detailed FEM calculations on the micro scale have been employed to examine a suggested theory of lamella formation based on shear stresses.
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2022)
Review
Engineering, Civil
Reza Motallebi, Zeinab Savaedi, Hamed Mirzadeh
Summary: High-entropy alloys (HEAs) are a new class of engineering materials with unique mechanical and functional properties. Superplastic forming of HEAs might be a viable route for actual applications of these alloys. This monograph summarized the superplastic behaviors of HEAs and medium-entropy alloys (MEAs), along with reviewing the basics of high-entropy alloys and fine-grained superplasticity.
ARCHIVES OF CIVIL AND MECHANICAL ENGINEERING
(2021)
Article
Materials Science, Multidisciplinary
Bassiouny Saleh, Jinghua Jiang, Qiong Xu, Reham Fathi, Aibin Ma, Yuhua Li, Lisha Wang
Summary: This paper focused on studying the influence of wear testing parameters on the weight loss of AZ91 magnesium alloy processed through rotary die-equal channel angular pressing (RD-ECAP) with different numbers of passes. It was found that increasing the number of RD-ECAP passes led to grain refinement, improved mechanical properties, and enhanced wear resistance of the alloy. Optimization using response surface methodology (RSM) revealed that higher applied load, sliding speed, and sliding time generally decreased wear resistance, while increasing the number of RD-ECAP passes improved wear resistance in the AZ91 magnesium alloy.
METALS AND MATERIALS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Iwona Bednarczyk, Dariusz Kuc
Summary: This article investigates the influence of extrusion methods on the microstructure and mechanical properties of WE43 magnesium alloy. Different deformation methods were applied to determine their effects on the alloy's structure and properties. The study shows that the KoBo method enables superplastic flow and microstructure refinement. These findings are significant for the development of forming technology for lightweight construction elements.
Article
Materials Science, Multidisciplinary
Yongpeng Tang, Kaveh Edalati, Takahiro Masuda, Yoichi Takizawa, Manabu Yumoto, Zenji Horita
Summary: Inconel 718 was processed using multi-pass high-pressure sliding to produce ultrafine-grained structures in rods with an average grain size of 140 nm. Tensile testing at 1073 K resulted in superplastic elongations exceeding 400%. A relationship between hardness and elongation to failure was established for predicting superplasticity.
Article
Chemistry, Physical
Parastoo Mahmoud Kalayeh, Mehdi Malekan, Ahmad Bahmani, Mehrab Lotfpour, Seyed Mahmood Fatemi, Soraya Bornay Zonoozi
Summary: In this study, low corrosion rate magnesium alloy was achieved through various processing techniques including solution treatment, multi-directional forging (MDF), and post-annealing. The combination of these processes resulted in improved corrosion resistance and mechanical properties of the alloy.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Wenke Wang, Xinhua Liu, Zhihao Wang, Miaomiao Chen, Wenzhen Chen, Wencong Zhang, Hyoung Seop Kim
Summary: This study investigates the effects of asymmetric basal texture on the stretchability and microstructure variations of magnesium alloy sheet. The results show that plastic deformation is concentrated in the central region of the sample during stretch forming, and the transverse direction sample has higher stretch formability. This is attributed to the weak basal texture in the transverse direction sample, which activates more basal slip and tension twinning. Additionally, the activation of basal slip narrows the spread angle of the basal pole for the transverse direction sample, while only increasing the basal texture intensity for the rolling direction sample.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Sujung Son, Dowon Lee, Hyeonseok Kwon, Jongun Moon, Ki Beom Park, Aeree Kim, Jungwoo Choi, Jin-Hwan Jeong, Sungho Cho, Hyoung Seop Kim
Summary: A new class of Ti-containing medium-entropy alloys (Ti-MEAs) was designed and three equiatomic Ti-MEAs were successfully cast. The microstructures and yield strengths of the newly designed Ti-MEAs were systematically investigated, providing important insights for further designing Ti-MEAs.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Farahnaz Haftlang, Jae Bok Seol, Alireza Zargaran, Jongun Moon, Hyoung Seop Kim
Summary: Maraging structural materials have been used for centuries, but their low ductility has limited their application. In this study, a dual-phase medium-entropy Fe68Ni10Mn10Co10Ti1.5Si0.5 maraging alloy with high strength (1.6 GPa) and enhanced ductility (-25%) is developed by injecting metastable austenite into the microstructure. The combination of metastability and heterogeneity achieved through heat treatment techniques can provide a breakthrough in developing maraging materials with large ductility.
Article
Materials Science, Multidisciplinary
Tae Jin Jang, You Na Lee, Yuji Ikeda, Fritz Koermann, Ju-Hyun Baek, Hyeon-Seok Do, Yeon Taek Choi, Hojun Gwon, Jin-Yoo Suh, Hyoung Seop Kim, Byeong-Joo Lee, Alireza Zargaran, Seok Su Sohn
Summary: Complex concentrated alloys (CCAs) with a face-centered-cubic (FCC) structure can improve both strength and ductility by adding the refractory element Mo to the alloy, resulting in enhanced solid-solution strengthening and reduced stacking fault energy (SFE).
Article
Materials Science, Multidisciplinary
Jeong Ah Lee, Jihye Kwon, Gihyeok Kwon, Soon Jik Hong, Hyoung Seop Kim
Summary: This study investigates the mechanical behavior of aluminum chip compaction using a new computational simulation approach. Two material parameters are proposed and adjusted for different swarf, and the numerical results show good agreement with experimental data. The study can be applied for further investigation and analysis of metal swarf of different geometries in various industrial applications.
ADVANCED ENGINEERING MATERIALS
(2023)
Article
Chemistry, Physical
Selim Kim, Dong Geun Kim, Minu Kim, Ki Jong Kim, Jae Min Lee, Joon Hyuk Lee, Hae-Won Cheong, Hyoung Seop Kim, Sunghak Lee
Summary: Various Al foams have been developed to meet the increasing demands for impact reduction in military, automotive, civil-engineering, and aerospace applications. Evaluating their energy-absorbing performance is challenging due to the rapid closure of interior pores. This study modified a split Hopkinson pressure bar (SHPB) to reliably evaluate the energy-absorbing performance of open- and closed-cell Al foams using the incident wave alone.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Soung Yeoul Ahn, Farahnaz Haftlang, Eun Seong Kim, Do Won Lee, Hyoung Seop Kim
Summary: In this study, a metastable Fe-15Ni-8Mn-8Co-3Ti-1Si ferrous medium entropy alloy is subjected to powder high-pressure torsion (HPT) followed by annealing. The microstructure changes from a body-centered cubic phase to a metastable face-centered cubic phase decorated with Ti-Si-rich precipitates during the isothermal post-annealing process. The optimized heat treatment leads to materials with high ultimate tensile strength and total elongation.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Jungwan Lee, Hyojin Park, Sujung Son, Takayoshi Nakano, Hyoung Seop Kim
Summary: Heterostructuring is used to improve the mechanical performance of metallic materials. This study introduces "dynamic heterostructuring" through hot rolling, which is different from the traditional "static heterostructuring" by cold rolling and annealing. The dynamic recrystallization during hot rolling enhances strain hardening and increases the yield strength of the alloy.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Nanoscience & Nanotechnology
Rae Eon Kim, Sang Guk Jeong, Hyojeong Ha, Do Won Lee, Auezhan Amanov, Hyoung Seop Kim
Summary: Metal additive manufacturing (MAM) is capable of designing complex geometries with optimized and near-net-shaped structures. However, defects generated during the manufacturing process have limited its industrial applications. This study proposes a new strategy using ultrasonic nanocrystal surface modification (UNSM) to reduce defects and improve the mechanical properties of MAM parts.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Nanoscience & Nanotechnology
M. M. Jafarzad-Shayan, A. Zarei-Hanzaki, A. Moshiri, H. Seop Kim, F. Haftlang, M. Tahaghoghi, M. Mahmoudi, M. Momeni, H. R. Abedi
Summary: Wire arc additive manufacturing (WAAM) is a cost-effective industrial-scale additive manufacturing technique that utilizes electric arc as energy source and metal wire as feedstock. In this study, the superior room temperature mechanical properties of AISI 316L stainless steel fabricated using WAAM were investigated. The extracted specimens from the printed part exhibited higher yield strength (450 MPa ± 20 MPa) and uniform elongation (41.2% ± 2.5%) compared to conventionally manufactured counterparts. Microstructural and elemental analyses revealed a non-equilibrium microstructure categorized as dual-phase, periodic layered, and harmonic hetero-structured materials. The hetero-deformation induced (HDI) strengthening was determined to contribute to 61.3% ± 2.2% of the overall strength through loading-unloading reloading test.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Review
Materials Science, Multidisciplinary
Wenyi Huo, Shiqi Wang, F. Javier Dominguez-Gutierrez, Kai Ren, Lukasz Kurpaska, Feng Fang, Stefanos Papanikolaou, Hyoung Seop Kim, Jianqing Jiang
Summary: This paper reviews recent developments in atomistic simulations of high-entropy electrocatalysts, which are considered as emerging state-of-the-art catalytic materials. The paper first surveys various modeling methods based on density functional theory and then reviews the progress in simulating different high-entropy electrocatalysts. Finally, prospects in this field are presented.
MATERIALS RESEARCH LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Mohammad Reza Akbarpour, Homayoun Mousa Mirabad, Farid Gazani, Iman Khezri, Amirhossein Ahmadi Chadegani, Ali Moeini, Hyoung Seop Kim
Summary: This article discusses the manufacturing methods and microstructural characteristics of Cu-SiC metal matrix composites to explore their potential for thermal management applications.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Engineering, Manufacturing
Anatoliy Zavdoveev, Andrey Klapatyuk, Thierry Baudin, Eric MacDonald, Dhanesh Mohan, J. P. Oliveira, Alex Gajvoronskiy, Valeriy Poznyakov, Hyoung Seop Kim, Francois Brisset, Maksym Khokhlov, Mark Heaton, Massimo Rogante, Mykola Skoryk, Dmitry Vedel, Roman Kozin, Illya Klochkov, Sviatoslav Motrunich
Summary: This study proposes the wire arc additive manufacturing method for non-equimolar Co-Cr-Fe-Mn-Ni high-entropy alloy using gas metal arc welding (GMAW) with metal powder-cored wire (MPCW). The filler powder contains Co-Cr-Mn-Ni components in equal atomic amounts relative to each other with Fe metal stripe as a shield. This method allows for building high-entropy alloy samples with desired characteristics. It outperforms alternative methods such as vacuum melting, plasma arc melting, selective laser melting, or electron beam melting in multiple indicators.
ADDITIVE MANUFACTURING LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Gang Hee Gu, Shin-Yeong Lee, Min Hong Seo, Jae-il Jang, Hyoung Seop Kim
Summary: The heterogeneous strengthening behavior in shear deformation was experimentally characterized and numerically modeled in this study. The results showed that the layered sheet exhibited better mechanical performance in both tensile and shear deformations, demonstrating the heterogeneous strengthening effect in shear deformation. The numerical simulations using microstructure-based constitutive models were in good agreement with experimental results, indicating the applicability of these models in shear stress state as well as uniaxial tension state.
METALS AND MATERIALS INTERNATIONAL
(2023)
Review
Materials Science, Multidisciplinary
Mohammad Reza Akbarpour, Farid Gazani, Homayoun Mousa Mirabad, Iman Khezri, Ali Moeini, Nafiseh Sohrabi, Hyoung Seop Kim
Summary: Cu-SiC composites have high thermal and electrical conductivity, mechanical strength, moldability, and low production cost. This review summarizes the scientific research on processing, effective parameters, and strategies to modify the Cu-SiC interface, covering microstructural, mechanical, tribological, thermal, and electrical properties of Cu-SiC composites.
PROGRESS IN MATERIALS SCIENCE
(2023)
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)
