Review
Polymer Science
Oxana L. Gribkova, Alexander A. Nekrasov
Summary: This review summarizes the main advantages of the spectroelectrochemical method in recent studies on electrosynthesis and redox processes of electroactive polymer composite materials, which have wide application in designing organic optoelectronic devices, batteries and sensors. The spectroelectrochemical methods discussed include in situ electron absorption, Raman, infrared and electron spin resonance spectroscopies.
Article
Biochemical Research Methods
Duanyang Xu, Sijing Liang, Lin Xu, Konstantinos N. Bourdakos, Peter Johnson, James Read, Jonathan H. V. Price, Sumeet Mahajan, David J. Richardson
Summary: The study showcases a continuous wave seeded synchronization-free optical parametric amplifier (OPA) with high performance in CARS, SHG, and two-photon fluorescence microscopy, making it a promising tool for biomedical imaging research. The OPA offers simplified setup and rapid tuning capabilities, enabling label-free multiphoton microscopy techniques for potential translation into a diagnostic tool in healthcare settings.
BIOMEDICAL OPTICS EXPRESS
(2021)
Article
Chemistry, Multidisciplinary
Hui He, Lingli Zhou, Zhanchen Guo, Pengfei Li, Song Gao, Zhen Liu
Summary: A novel dual biomimetic recognition-driven plasmonic nanogap-enhanced Raman scattering strategy was reported for ultrasensitive protein fingerprinting and quantitation. By trapping target proteins into plasmonic nanogaps, ultra-high Raman signal amplification was achieved, along with a ratiometric assay for robust quantitation.
Article
Materials Science, Multidisciplinary
Poonam Shekhawat, Gunwant Sharma, Rao Martand Singh
Summary: The morphological and microstructural evolution of flyash (FA), eggshell powder (ESP), and soft soil (S) geo-polymer was studied. The effects of different synthesis parameters on the geopolymerization process were explained. The results showed the coexistence of calcium aluminate silicate hydrate gel and the highest cementitious product. The geopolymeric gel structure filled the voids between soft soil particles and reinforced the whole matrix.
Article
Chemistry, Applied
Rajath Alexander, Amit Kaushal, Jyoti Prakash, P. T. Rao, Debasis Sen, Kinshuk Dasgupta
Summary: This study reports on how the S/Fe ratio in the feedstock controls the density and pore structure of self-assembled carbon nanotube aerogel in the floating catalyst chemical vapor deposition process. Decreasing the S/Fe ratio increases the density of the aerogel, while decreasing its porosity and increasing bundle dimensions. The study also found that the carbon nanotubes have a multi-walled structure and improved crystallinity with increasing S/Fe ratio. The formed aerogels were then converted into carbon nanotube fibers, achieving high electrical conductivity and tensile strength with an S/Fe ratio of 0.2.
JOURNAL OF POROUS MATERIALS
(2023)
Review
Materials Science, Multidisciplinary
Mikhail Shekhirev, Christopher E. Shuck, Asia Sarycheva, Yury Gogotsi
Summary: The field of MXene continues to grow as more research groups investigate this large class of 2D materials. While synthesis and applications have been widely discussed, the importance of characterization is often overlooked. This review focuses on various advanced characterization techniques for understanding the precursor suitability, successful synthesis, composition, structure, and properties of MXene.
PROGRESS IN MATERIALS SCIENCE
(2021)
Article
Multidisciplinary Sciences
Andreij C. Gadelha, Douglas A. A. Ohlberg, Cassiano Rabelo, Eliel G. S. Neto, Thiago L. Vasconcelos, Joao L. Campos, Jessica S. Lemos, Vinicius Ornelas, Daniel Miranda, Rafael Nadas, Fabiano C. Santana, Kenji Watanabe, Takashi Taniguchi, Benoit van Troeye, Michael Lamparski, Vincent Meunier, Viet-Hung Nguyen, Dawid Paszko, Jean-Christophe Charlier, Leonardo C. Campos, Luiz G. Cancado, Gilberto Medeiros-Ribeiro, Ado Jorio
Summary: The twisted bilayer graphene undergoes self-organized lattice reconstruction, resulting in the formation of a superlattice that modulates vibrational and electronic structures, leading to phenomena such as strong correlations and superconductivity. Although experimental techniques and theoretical models face challenges in observing and describing these effects, nano-Raman spectroscopy can localize some vibrational modes and provide insights into the effects of electron-phonon coupling on the material properties.
Article
Chemistry, Multidisciplinary
Kai Cui, Yongming Zhang, Gaoxian Chen, Yanna Cui, Wenwei Wu, Na Zhao, Tize Liu, Zeyu Xiao
Summary: This article introduces a polymer probe for ultrasensitive in vivo Raman imaging. The polymer emits strong Raman signals under near-infrared excitation and enables imaging of micrometastasis and microvasculature.
Article
Materials Science, Multidisciplinary
Sudhanshu Kumar, K. Sreenivas
Summary: The structural and magnetic properties of as-prepared and annealed MgFe2O4 nano-powders prepared by auto-combustion method using dl-alanine fuel were investigated. Annealing at different temperatures resulted in changes in crystallite size, saturation magnetization, and coercivity, which were correlated with variations in cation distribution in the octahedral and tetrahedral sites. Residual carbon, hydrogen, and nitrogen content in the powders were found to decrease after annealing at 900 degrees Celsius in air.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Article
Multidisciplinary Sciences
Linfei Li, Jeremy F. Schultz, Sayantan Mahapatra, Zhongyi Lu, Xu Zhang, Nan Jiang
Summary: By using ultrahigh vacuum tip-enhanced Raman spectroscopy (UHV-TERS), single oxygen adatoms on a boron monolayer (borophene) can be identified and mapped with a spatial resolution of approximately 4.8 angstrom and single bond sensitivity. This technique enables the atomically defined, chemically homogeneous, and thermally reversible oxidation of borophene via atomic oxygen in UHV. Additionally, it reveals the propensity of borophene towards molecular oxygen activation at room temperature and phase-dependent chemical properties. Overall, this work demonstrates the powerful utility of UHV-TERS in probing the local chemistry of surface adsorbates in the atomic regime and has important applications in heterogeneous catalysis, on-surface molecular engineering, and low-dimensional materials.
NATURE COMMUNICATIONS
(2022)
Article
Optics
Cihang Kong, Christian Pilger, Manuel Kunisch, Christine Foerster, Jan Schulte am Esch, Thomas Huser
Summary: Coherent Raman scattering (CRS) microscopy is a label-free imaging method with high chemical sensitivity and sub-micron spatial resolution. A tunable two-color fiber laser with superior noise performance is demonstrated. Large-area multimodal imaging of human liver tissue sections is achieved and compared to commercial laser data.
LASER & PHOTONICS REVIEWS
(2023)
Article
Chemistry, Analytical
Lili Zhang, Xiang Zou, Jing Huang, Jie Fan, Xiangjie Sun, Bohan Zhang, Bin Zheng, Chongyuan Guo, Deliang Fu, Lie Yao, Minbiao Ji
Summary: The study shows that label-free coherent nonlinear optical microscopy with combined SRS and SHG can reveal key diagnostic features of both normal and cancerous pancreatic tissues, providing potential for rapid intraoperative diagnosis of pancreatic cancer and predictive value for postoperative pancreatic fistula.
ANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Physical
D. V. Mashtalyar, K. V. Nadaraia, I. M. Imshinetskiy, E. A. Belov, V. S. Filonina, S. N. Suchkov, S. L. Sinebryukhov, S. V. Gnedenkov
Summary: The study developed a method for restoring protective coating of pure titanium, damaged due to long-term operation, through plasma electrolytic oxidation and subsequent polymer treatment. The research showed that composite coatings with polytetrafluoroethylene have higher corrosion resistance, wear resistance, and hydrophobicity, compared to thermal coatings.
APPLIED SURFACE SCIENCE
(2021)
Article
Polymer Science
Ion Smaranda, Andreea Nila, Paul Ganea, Monica Daescu, Irina Zgura, Romeo C. Ciobanu, Alexandru Trandabat, Mihaela Baibarac
Summary: This study focused on the preparation of composites using TPU and TPO as base polymers blended with ceramic nanoparticles such as BaSrTiO3 and SrTiO3. The structural, optical, and conductive properties of these composites were investigated, highlighting changes in vibrational properties induced by CNs and demonstrating a photoluminescence quenching process. Anisotropic PL measurements showed variations in the angle of binding of the TPU:TPO blend with different concentrations of CNs. Dielectric spectroscopy revealed two mechanisms involving electrical conduction and dielectric-dipolar relaxation processes in the composites.
Review
Chemistry, Physical
Jia-Min Lai, Ya-Ru Xie, Jun Zhang
Summary: Electron-phonon coupling significantly impacts the properties of 2D materials, with inelastic light scattering serving as a powerful experimental tool. This review provides an overview of the basic theory and experimental advances in detecting electron-phonon coupling in 2D materials through Raman and Brillouin scattering techniques.
Article
Materials Science, Multidisciplinary
Madeeha Riaz, Manahil Najam, Hina Imtiaz, Farooq Bashir, Tousif Hussain
Summary: This study focuses on the structural and biological analysis of Zn-Cu based biodegradable alloys for orthopedic applications. The results indicate that the alloys have good electrical conductivity and biocompatibility, with potential for promoting bone growth and healing process. Additionally, the alloys exhibit a low corrosion rate and improved corrosion resistance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Rijo Rajeev, Sk Safikul Islam, Anitha Varghese, Gurumurthy Hegde, Suryasarathi Bose
Summary: In this study, a facile and selective electrochemical sensor was developed for the sensing of guanosine. The sensor utilized a unique porous structure and ordered framework, enabling linear detection of guanosine concentration in the range of 0.123-720 μM under specific conditions.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Rafael V. M. Freire, Dominique Celeste de A. Dias, Jose Yago Rodrigues Silva, Dayane Kelly Dias do Nascimento Santos, Larissa T. Jesus, Ricardo O. Freire, Severino A. Junior
Summary: This study reports the extraction and isolation of euphol from nature, its adsorption in nanosized ZIF-8, and the efficacy of this system against cancer cells. Experimental and simulation results show that ZIF-8 can enhance the effectiveness of euphol against cancer cells and selectively target cancer cells.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Manal A. Awad, Awatif A. Hendi, Maha M. Almoneef, Maymunah Alwehaibi, Khalid M. Ortashi, Wadha Alenazi, Fatimah S. Alfaifi, Shareefa Alahmariye, Asma Alangery, Warda Ali Alghoubiri, Haia Aldosari
Summary: In this study, magnesium-doped zinc oxide nanoparticles were synthesized and characterized. The research findings show that magnesium doping can alter the crystal structure and optical properties of zinc oxide, while enhancing its dielectric constant.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
F. J. Willars-Rodriguez, I. R. Chaverz-Urbiola, M. A. Hernandez-Landaverde, A. Zavala-Franco, E. A. Chavez-Urbiola, P. Vorobiev, Yu V. Vorobiev
Summary: This study focuses on manganese doped CdS thin films synthesized by chemical bath deposition. The incorporation of Mn2+ cations in CdS was found to influence the crystalline structure, morphology, and optoelectronic properties. Doped thin films exhibited a uniform hexagonal structure, changed growth orientation, and showed scale-like and needle-like morphologies. The bandgap and rectification speed of Schottky diodes were modified by introducing manganese. This study suggests the potential for affordable high-speed optoelectronic devices.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Mehdi Javidi, Hooman Karimi Abadeh, Fatemeh Namazi, Hamid Reza Yazdanpanah, Narjes Shirvani Shiri
Summary: This study investigated the synergistic effect of temperature, solution velocity, and sulphuric acid concentration on the corrosion behavior of carbon steel using response surface methodology. The results showed that temperature affected anodic reactions, solution velocity influenced cathodic reactions, and acid concentration altered the corrosion mechanisms by changing the properties of the surface layer.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
R. Sakthivel, Thirumoorthy Kulandaivel, Kirankumar Venkatesan Savunthari, K. Mohanraj, Hans-Uwe Dahms, Aswin kumar Anbalagan, Manjunath Rangasamy, Kien-Voon Kong
Summary: In this study, saturated fatty acids were incorporated with silane to modify viscose fabric, resulting in superhydrophobic and superoleophilic properties. The modified fabric showed excellent separation efficiency for oil and organic solvents, with high absorption capacity. The modified fabric also exhibited durability and retained its properties in harsh conditions.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Wei Zhang, Hong Lei, Wenqing Liu, Zefang Zhang, Yi Chen, Xiaogang Hu, Xiangshan Ye
Summary: In this study, EDTA-grafted alumina composite abrasives were produced by a two-step process for the CMP of sapphire substrates. Experimental results showed that the modified abrasives exhibited better dispersion properties and significantly improved polishing efficiency, with higher material removal rates and lower surface roughness. The combination of chemical reaction and mechanical action enhanced the CMP performance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Shumaila Rafaqat, Bushra Perveen, Warda Raqba, Warda Imran, Arshad Hussain, Naeem Ali
Summary: This study developed a MnP-based biosensor for quantitative measurement of dye concentrations using electrochemical signals. The effects of two different dyes on MnP activity were investigated, with one dye showing inhibitory effects and the other dye having no effect. The study demonstrates the potential application of enzyme-based biosensors in dye detection and toxicological monitoring.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Jinyan Shi, Oguzhan Yavuz Bayraktar, Baris Bayrak, Burak Bodur, Ali Oz, Gokhan Kaplan, Abdulkadir Cuneyt Aydin
Summary: The elemental composition of precursors is crucial for the performance development of geopolymers. The use of lime instead of metakaolin increases the fluidity and mechanical properties of geopolymers, while the addition of gypsum decreases them. Furthermore, higher lime content exacerbates the negative effect of gypsum.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Aayush Gupta, Kaveri Ajravat, Loveleen K. Brar, O. P. Pandey, Pandey Rajagopalan
Summary: This study focuses on the performance of Mn3O4-ZnO composite material in wastewater treatment and energy storage applications, and presents a detailed comparative analysis. Results show that the composite material with equal concentrations of Mn3O4 and ZnO exhibits excellent photocatalytic activity and high capacitance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
V. Murugabalaji, Matruprasad Rout, Harsh Soni, Biranchi Narayan Sahoo
Summary: This study focuses on the corrosion characteristics of AA 7075 and AA 7075 based hybrid composite fabricated using stir casting and hot rolling techniques. The results show that the hybrid composite produced by hot cross rolling exhibits better corrosion resistance compared to the base metal. The addition of a small amount of graphite improves the bonding between the matrix and reinforcements, and the hot cross rolling enhances this bonding, leading to the formation of a strong passivation oxide layer and increased charge transfer resistance, thereby improving corrosion resistance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Fangkun Ning, Qinghao Shi, Shuping Kong, Weitao Jia, Lifeng Ma
Summary: The paper investigates a new method of rolling sheets with variable chamfering amounts in both the transversal and normal directions. The feasibility of the technological process was tested through simulation and compared with experimental results. Three important process parameters, temperature, stress, and flow velocity, were used to evaluate the effects on chamfering amount before determining the optimal angle. The spread formula for evaluating the shape quality of the plate after ECR was obtained through testing and theory.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Aqeel Abbas, M. A. Hussein, Mohamed Javid
Summary: In this study, the AM60 magnesium alloy was processed using high-energy ball milling, and the results showed that different reinforcement agents had certain effects on particle size, crystallite size, lattice strain, and dislocation density.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
D. S. Mahmoud, E. M. Eldesouki, W. M. Abd El-Gawad
Summary: The development of flexible and lightweight microwave-absorbing materials has become a trendy topic. This study focuses on enhancing the microwave-absorbing performance of butadiene-acrylonitrile rubber (NBR) by incorporating novel reinforcing nanofillers. The results show that the NBR nanocomposite with a loading of 16 parts per hundred rubber (phr) of LiFe 20%/Si has the best microwave-absorbing performance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)