Article
Materials Science, Multidisciplinary
Olga S. Ovchinnikova, Nikolay Borodinov, Artem A. Trofimov, Steven T. King, Matthias Lorenz, William Lamberti, David Abmayr, Anton Ievlev
Summary: Chemical imaging of polymers and polymer blends has traditionally been done using ToF-SIMS with limited spatial resolution, but recent work has focused on using HIM-SIMS for higher resolution. By utilizing HIM-SIMS, differentiation between PE and PP as well as imaging of phase-separated domains within PE has been achieved, demonstrating its potential for analyzing complex polymeric systems.
ACS APPLIED POLYMER MATERIALS
(2021)
Article
Chemistry, Analytical
Aljoscha Korber, Joel D. Keelor, Britt S. R. Claes, Ron M. A. Heeren, Ian G. M. Anthony
Summary: In this study, a new method called fast mass microscopy is proposed, which combines a Timepix3 detector with continuously sampling secondary ion mass spectrometry mass microscope to achieve high throughput imaging at lower mass resolution compared to conventional MSI. This method enables the acquisition of submicron, gigapixel images of fingerprints and rat tissue at significantly faster speeds than traditional microprobe-mode MSI.
ANALYTICAL CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
Mirjam Bajt Leban, Tadeja Kosec, Matjaz Finsgar
Summary: In the additively manufactured TiAlV samples, a higher amount of ions was released in artificial saliva compared to wrought alloy samples. The total amount of ions released was 10 times higher in artificial saliva containing NaF, and 100 times higher in artificial saliva containing lactic acid.
Article
Materials Science, Coatings & Films
Wil Gardner, David A. Winkler, David L. J. Alexander, Davide Ballabio, Benjamin W. Muir, Paul J. Pigram
Summary: In this study, two different ToF-SIMS imaging datasets were used to evaluate the impact of data preprocessing methods and SOM hyperparameters on the performance of SOM. It was found that preprocessing is generally more important than hyperparameter selection, and there are complex interactions between different parameters. The results of this study are important for understanding the effects of data processing on hyperspectral imaging data.
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
(2023)
Article
Chemistry, Physical
Louis L. De Taeye, Maarten J. Mees, Philippe M. Vereecken
Summary: TiO2 is a Li-ion electrode material with high cycle life and no stringent high temperature processing required, which can reach theoretical capacity through nano-scaling or chlorine modification. However, the energy density of batteries with TiO2 anode is limited by high oxidation potential and poor rate performance. Improving reversible insertion capacity or insertion potential can enhance the performance and applicability of TiO2 as Li-ion battery electrode.
ENERGY STORAGE MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Inci Barut, Xiulan He, Erol Sener, Sanna Samfors, Andrew G. Ewing, John S. Fletcher
Summary: The abnormal functioning of proteasome is associated with crucial pathological conditions, such as neurodegeneration. However, the complex underlying causes at the cellular level are still unclear, and there are conflicting reports on the neuroprotective and neurodegenerative effects of proteasomal inhibitors like lactacystin, which are used as models for neurodegenerative diseases. The conflicting results may be due to different doses of lactacystin. Hence, a dose-dependent study was conducted to investigate the effects of lactacystin on cell membrane lipid profile and exocytosis dynamics.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Spectroscopy
Qing Li, Yan Fang, Jianghua Liu, Chengrong Zhang, Zheng Wang
Summary: In this study, LA-ICP-MS was utilized to map the elemental images of curved surface samples by segmenting and recombining. The investigation also focused on the influence of parameters on lateral resolution. The method was applied to imaging analysis of lanthanum in an alumina ceramic tube, revealing non-uniform distribution of lanthanum within the tube.
ATOMIC SPECTROSCOPY
(2021)
Review
Materials Science, Multidisciplinary
Manale Noun, Rayane Akoumeh, Imane Abbas
Summary: Mass spectrometry imaging (MSI) is a powerful technique that can reveal the spatial distribution of atomic and molecular ions on the surfaces of biological samples. MALDI-TOF and TOF-SIMS, two commonly used MSI techniques, have witnessed significant advancements in studying cells and tissue sections due to their high resolution, sensitivity, precision, and chemical specificity. This article briefly discusses the principles and sampling methods of MALDI-TOF and TOF-SIMS, while highlighting their importance as diagnostic tools and robust analytical techniques in the medicinal, pharmaceutical, and toxicology fields through representative published studies.
MICROSCOPY AND MICROANALYSIS
(2022)
Article
Nanoscience & Nanotechnology
Haw-Ming Huang, Ping-Han Wu, Po-Chien Chou, Wen-Tien Hsiao, Hsin-Ta Wang, Hsin-Pei Chiang, Chi-Ming Lee, Shwu-Huey Wang, Yu-Cheng Hsiao
Summary: The study shows that LMWHA-IONPs can effectively enhance MRI contrast for the early diagnosis of glioblastoma, with good targeting ability and biocompatibility towards tumor cells.
INTERNATIONAL JOURNAL OF NANOMEDICINE
(2021)
Article
Chemistry, Multidisciplinary
Hanna Pazniak, Mohamed Benchakar, Thomas Bilyk, Andrea Liedl, Yan Busby, Celine Noel, Patrick Chartier, Simon Hurand, Marc Marteau, Laurent Houssiau, Rosanna Larciprete, Paolo Lacovig, Daniel Lizzit, Ezequiel Tosi, Silvano Lizzit, Jerome Pacaud, Stephane Celerier, Vincent Mauchamp, Marie-Laure David
Summary: This study demonstrates the modification of two-dimensional MXenes by low-energy ion implantation, leading to the incorporation of Mn ions in Ti3C2Tx thin films. The ion-induced damage alters the Ti3C2Tx layer by promoting defect formation at both Ti and C sites, thereby functionalizing them with oxygen groups. This work contributes to tailoring 2D MXene structure and properties through doping and defect formation by low-energy ion implantation for expanding practical applications.
Article
Construction & Building Technology
Xiaohu Lu, Peter Sjovall, Hilde Soenen, Johan Blom, Martin Andersson
Summary: Microstructures of bitumen surfaces were imaged by AFM and chemically characterised by TOF-SIMS. Air-cooled bitumen surfaces showed bee structures with chemical explanation by wax crystallisation, while fractured surfaces generally lacked clear structure patterns. TOF-SIMS analysis revealed small chemical differences between structured and unstructured areas, suggesting a mechanism involving electron-induced heating in the formation of ESEM structures.
ROAD MATERIALS AND PAVEMENT DESIGN
(2021)
Review
Chemistry, Multidisciplinary
Feifei Jia, Xia Zhao, Yao Zhao
Summary: In the past 20 years, Time-of-Flight Secondary Ion Mass Spectrometry (ToF-SIMS) has emerged as a powerful imaging technique in the life sciences field. This review provides a comprehensive overview of recent advancements in ToF-SIMS technology and its applications in metabolomics, lipidomics, and single-cell analysis. The high spatial resolution and multimodal analysis capabilities make ToF-SIMS a promising tool for understanding the complex molecular landscape of biological systems.
FRONTIERS IN CHEMISTRY
(2023)
Article
Engineering, Environmental
Zhengbo Liu, Chaojin Zhou, Jun Liu, Lichun Yang, Jiangwen Liu, Min Zhu
Summary: Element doping is a common method for improving the performance of cathode materials in batteries. This study successfully transformed an O3-type cathode into a P2-type cathode using a simple Li/F co-doping route. The modified P2-type cathode showed higher Na content, solid solution reaction in a high-voltage range, and a stronger TM-F bond. This research provides a new idea and reference for synthesizing high-performance P2-type layered oxide cathode materials for sodium-ion batteries.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Michaeleen L. Pacholski, Paul R. Vlasak
Summary: A correlation between SIMS ion intensities and the molecular weight of linear, trimethyl-terminated polydimethyl siloxane (PDMS) has been established by normalizing PDMS endgroup-related signal to backbone-related signal. Determining PDMS molecular weight is crucial for understanding surface-related performance of materials and can provide more specific characterization of surface contamination.
SURFACE AND INTERFACE ANALYSIS
(2021)
Article
Materials Science, Multidisciplinary
Luntao Wang, Antoine Seyeux, Loic Perriere, Dimitri Mercier, Vincent Maurice, Philippe Marcus
Summary: The ion transport mechanisms in passive films pre-formed on CoCrFeMnNi high entropy alloy surfaces in acid solution were studied in-situ by time-of-flight secondary ion mass spectrometry upon oxidation in 18O2 gas. The bilayer structure of the passive film, with outer Fe, Co-rich and inner Cr, Mn-rich layers, is thermally stable, but with reduction of Fe and Co oxides and formation of Mn oxide in the outer layer above 150 degrees C. At 170 degrees C, the transport mechanism is mainly outward cation diffusion with slower inward oxygen diffusion. The re-oxidation growth rate follows a parabolic law and the value of parabolic constant was determined.
Article
Nanoscience & Nanotechnology
Sima Umrao, Tejendra K. Gupta, Shiv Kumar, Vijay K. Singh, Manish K. Sultania, Jung Hwan Jung, Il-Kwon Oh, Anchal Srivastava
ACS APPLIED MATERIALS & INTERFACES
(2015)
Article
Chemistry, Physical
N. Karar, B. P. Singh, Indu Elizabeth
APPLIED SURFACE SCIENCE
(2015)
Article
Materials Science, Multidisciplinary
N. Karar, S. K. Singh
Article
Chemistry, Multidisciplinary
Tejendra K. Gupta, Bhanu P. Singh, Ravi Kant Tripathi, Sanjay R. Dhakate, Vidya N. Singh, O. S. Panwar, Rakesh B. Mathur
Article
Chemistry, Physical
B. P. Singh, D. K. Saket, A. P. Singh, Santwana Pati, T. K. Gupta, V. N. Singh, S. R. Dhakate, S. K. Dhawan, R. K. Kotnala, R. B. Mathur
JOURNAL OF MATERIALS CHEMISTRY A
(2015)
Article
Chemistry, Physical
Ravi Gupta, Bhanu P. Singh, Vidya N. Singh, Tejendra K. Gupta, Rakesh B. Mathur
Article
Chemistry, Physical
Reema Kamaliya, Bhanu Pratap Singh, Bipin Kumar Gupta, Vidya Nand Singh, Tejendra Kumar Gupta, Ravi Gupta, Pawan Kumar, Rakesh Behari Mathur
Article
Polymer Science
T. K. Gupta, B. P. Singh, Satish Teotia, Varun Katyal, S. R. Dhakate, R. B. Mathur
JOURNAL OF POLYMER RESEARCH
(2013)
Article
Chemistry, Multidisciplinary
Tejendra K. Gupta, Bhanu Pratap Singh, Rakesh B. Mathur, Sanjay R. Dhakate
Article
Chemistry, Physical
Tejendra K. Gupta, Bhanu P. Singh, Vidya Nand Singh, Satish Teotia, Avanish Pratap Singh, Indu Elizabeth, Sanjay R. Dhakate, S. K. Dhawan, R. B. Mathur
JOURNAL OF MATERIALS CHEMISTRY A
(2014)
Article
Physics, Multidisciplinary
N. Karar, Vipin Jain, R. Mohanty
Summary: This paper discusses the composition, crystalline phase, and microstructure of two common stainless steel grades manufactured in India and compares them with cheap imported items. It is found that even if the composition meets ASTM standards, the different crystalline phase components result in incomparable performance and properties. The study proposes the use of X-ray diffraction and Raman spectral data analysis to check the repeatability of alloy materials.
INDIAN JOURNAL OF PURE & APPLIED PHYSICS
(2022)
Article
Biophysics
Ranjana Singh, Sunayana Kashyap, Suveen Kumar, Shiju Abraham, Tejendra K. Gupta, Arvind M. Kayastha, Bansi D. Malhotra, Preeti Suman Saxena, Anchal Srivastava, Ranjan K. Singh
BIOSENSORS & BIOELECTRONICS
(2017)
Article
Physics, Multidisciplinary
N. Karar, B. Sivaiah
INDIAN JOURNAL OF PURE & APPLIED PHYSICS
(2015)
Article
Materials Science, Multidisciplinary
Ping Zhang, Xiujie Yue, Yeran Gao, Zhenyong Lin, Shunxiang Wang, Songting Zhang
Summary: This paper investigates the strengthening mechanism of highspeed cutting and solid particle-entrained waterjet peening (HSC-WJP) composite reinforcement on 7075-T6 aluminum alloy. The research results show that composite reinforcement can improve surface quality, reduce surface pits and roughness, and decrease the size of precipitation-free zone (PFZ) at grain boundaries.
Article
Materials Science, Multidisciplinary
Sangyoon Lee, Hwi Yoon, Sanghun Lee, Seung-min Chung, Hyungjun Kim
Summary: The wettability of metal oxides, particularly HfO2 thin films deposited via atomic layer deposition, and its correlation with surface free energy have been studied. It was found that surface oxygen species significantly affect the intrinsic hydrophilicity of HfO2 thin films, and the crystalline orientations also evolve with film thickness.
Article
Materials Science, Multidisciplinary
Changdong Yin, Yiwen Wu, Zhou Xu, Dongdong Ye, Jun Yao, Jianjun Chen, Qiang Liu, Xin Ge, Meiling Ding
Summary: This study proposed a new strategy to indirectly estimate the hydrogen diffusivity of metallic materials under tensile stress by combining the electrochemical hydrogen permeation test (EHPT), the hydrogen diffusion descriptive equation based on Fick's law, and hydrogen pre-charged tensile test. The results showed that the hydrogen permeation curve obtained was highly approximate to the theoretical trend. The hydrogen embrittlement (HE) susceptibility of the specimens increased with increasing stress.
Article
Materials Science, Multidisciplinary
Huan Luo, Wei-yi Wang, Xin Yu, Xian-jun Lei, Lang Liu, Guo-zheng Zha, Wen-long Jiang, Bin Yang, Bao-qiang Xu
Summary: Separating selenium and tellurium is a general challenge in material and non-ferrous metallurgical industries. This paper proposes a novel method that achieved efficient separation of selenium and tellurium using gas-liquid equilibrium phase diagram and valence regulation-vacuum gasification technique.
Article
Materials Science, Multidisciplinary
Fan Zhang, Rong Xin Wang, Aiqin Tian, Fangzhi Li, Jianping Liu, Hui Yang
Summary: Deposition of Pd/Pt/Au three-layer films on p-GaN under high and ultra-high vacuum conditions was studied to investigate the electrical contact properties. Linear I-V curves were observed in samples deposited under ultra-high vacuum conditions, while nonlinear I-V characteristics were obtained in samples deposited under high vacuum conditions. The study also found that the samples deposited under high vacuum conditions had higher amounts of oxygen and Pd oxide. The oxide layer had an additional influence on the electrical characteristics of the Pd/Pt/Au/p-GaN contact.
Article
Materials Science, Multidisciplinary
Hongli Liu, Chengzhe Liu, Ying Sui, Zhongxian Liu, Tiangang Zhang, Zhiqiang Zhang, Shuang Sun, Jianwei Jia
Summary: This study utilized polysiloxane and hafnium carbide to produce Si-N-C-O-Hf hybridized ceramic fibers, and obtained ceramic fibers with hemispherical particles on the surface through electrostatic spinning and pyrolysis. The ceramic fibers exhibited excellent thermal stability, oxidation resistance, and high temperature insulation.
Article
Materials Science, Multidisciplinary
M. Abaker, Nazar Elamin Ahmed, A. Saad, H. F. Khalil, E. M. M. Ibrahim, A. M. Adam
Summary: This paper systematically studied the internal structure and thermoelectric properties of In1-xGaxSb alloys prepared by melting synthesis at 1123 K. The results showed that doping with Ga in the In sites led to a significant increase in the Seebeck coefficient and power factor, while reducing the thermal conductivity. The maximum dimensionless figure of merit was observed at 403 K.
Article
Materials Science, Multidisciplinary
Fucheng Yu, Jinlong Ren, Jielin Zhang, Haiyang Chen, Xin Tian, Chenchen Feng, Cuixia Li, Jianbin Zhang, Xianxi Tang, Xiaogang Hou
Summary: An environmentally friendly ZnO@BiVO4 composite photocatalyst was prepared using in-situ self-assembly and solvothermal methods, demonstrating good photocatalytic performance. The mass ratio of BiVO4 and NCZ was found to influence the photocatalytic performance of the composite.
Article
Materials Science, Multidisciplinary
Yaoming Shao, Pingping Zheng, Tianhao Dong, Lianghuan Wei, Haifei Wu, Jianxiao Si
Summary: In this paper, Mg3Bi2 films were prepared on glass substrate using magnetron sputtering, and the phase composition and thermoelectric properties of the films were investigated with different atomic ratios. The films displayed a metastable cubic phase and high conductivity when the atomic ratio exceeded stoichiometry.
Article
Materials Science, Multidisciplinary
I. V. Uimanov, D. L. Shmelev, S. A. Barengolts
Summary: A two-dimensional axisymmetric model has been developed to study the prebreakdown processes in a cathode microprotrusion under an external electric field. The simulation results show that electrohydrodynamic instability leads to the formation of a nanometer-sized conical protrusion on the microprotrusion tip, significantly accelerating the heating process.
Article
Materials Science, Multidisciplinary
Weilun Zhang, Di Yang, Feng Gong, Yongjun Chen, Tian Chen, Zhiwen Xie, Sirui Yang
Summary: A novel Pt doping method was designed to improve the thermal stability of CrWN coating. The doping of Pt atoms effectively blocks the coherent growth of the grains and creates a significant mixing effect, resulting in a smooth surface with uniform element distribution.
Article
Materials Science, Multidisciplinary
Xiaoye Wang, Xiaoguang Yang, Wenna Du, Tao Yang
Summary: In this study, the effects of multiple growth parameters on self-catalyzed growth of InAs/GaSb axial heterostructured nanowires on Si substrate by MOCVD were investigated. It was found that the growth temperature and switching time have significant influences on the nanowire growth.
Article
Materials Science, Multidisciplinary
Weizhong Cui, Yan Zhao, Can Cui, Xing Liu, Beili Pang, Jianguang Feng, Hongzhou Dong, Liyan Yu, Lifeng Dong
Summary: This study introduces Co2+ cations into Cs2AgBiBr6 film to improve its quality, grain size, and conductivity, resulting in enhanced solar cell efficiency.
Article
Materials Science, Multidisciplinary
Jian Wang, Ke Yang, Xianming Cheng, Yalin Lu, Ganghui Wu, Yang Zhang, Yun Kan
Summary: The corrosion behavior and microstructural evolution of Sc microalloyed Al-3.2Cu-1.5Li alloys were investigated in detail. The microstructural results showed higher levels of dislocations density in the Sc microalloyed sample, which resulted in significantly refined grains and T1 precipitates. Microalloying with Sc changed the corrosion mode of the alloy and localized corrosion was found to occur preferentially at the subgrain within unrecrystallized grains with high grain stored energy.
Article
Materials Science, Multidisciplinary
Weifeng Liu, Na Liu, Kaiqiang Song, Meiqin Zeng, Zhongchen Lu
Summary: Monoclinic WO3 prepared through plasma milling exhibits higher photocatalytic activity due to its higher surface area, increased oxygen vacancies, and defects.
