Article
Instruments & Instrumentation
Stephane Chevalier, Jean-Noel Tourvieille, Alain Sommier, Jean-Christophe Batsale, Bruno Beccard, Christophe Pradere
Summary: The technical note presents an advanced thermospectroscopic imager that combines FT-IR spectrometer and thermal camera technologies to image thermal emission and multispectral absorbance fields rapidly. The instrument demonstrates high efficiency and accuracy in processing and measuring, showcasing its potential for studying fast transient thermal and chemical phenomena with improved spectral resolution.
APPLIED SPECTROSCOPY
(2021)
Article
Instruments & Instrumentation
Alexander Finnegan, Rebekah C. Susserott, Lip-Hwee Koh, Wei-Boon Teo, Chris Gouramanis
Summary: This study introduces a simple sample preparation method that greatly improves the results of Fourier transform infrared analysis. By compressing the fibers and improving their surfaces, the method achieves high matching scores and reproducibility in spectra generation.
APPLIED SPECTROSCOPY
(2022)
Article
Instruments & Instrumentation
Timothy J. Johnson, Tracy J. Baker, Ashley M. Bradley, Michael O. Yokosuk, Tanya L. Myers
Summary: We report an artifact arising from the back reflection in Fourier transform spectrometers. When samples are oriented normal to the incoming modulated beam, a certain percentage of light can reflect back to the interferometer and be modulated again, resulting in light appearing at twice its true frequency. We have successfully eliminated this artifact by implementing a rotation stage beneath the sample holder.
APPLIED SPECTROSCOPY
(2022)
Article
Instruments & Instrumentation
Jie Ke, Chuang Gao, Ana A. Folgueiras-Amador, Katherine E. Jolley, Oscar de Frutos, Carlos Mateos, Juan A. Rincon, Richard C. D. Brown, Martyn Poliakoff, Michael W. George
Summary: A continuous-flow electrochemical synthesis platform has been developed for self-optimization of organic electrochemical reactions using ATR FT-IR and GC as monitoring techniques. Two types of gas-liquid separators were designed to overcome challenges in using ATR FT-IR for downstream analysis when a large amount of hydrogen gas is produced. This approach provides a reliable method for quantifying low-volatile analytes and optimizing reaction conditions without operator intervention.
APPLIED SPECTROSCOPY
(2022)
Article
Instruments & Instrumentation
Emese I. Vegh, Nicholas Marquez-Grant, Rick J. Schulting
Summary: This study investigates the impact of a one year postmortem interval on the structural and chemical alterations of unburnt and burnt bone. The results show that the concentrations of elements associated with extracellular fluid change with the postmortem interval and survive burning. Calcium, phosphorus, iron, aluminum, silicon, and strontium are not significantly altered with burning, while increased crystallinity and carbonate loss can be detected in unburnt bones.
APPLIED SPECTROSCOPY
(2022)
Article
Instruments & Instrumentation
Christopher J. Thompson, Neal B. Gallagher, Kendall D. Hughey, Megan K. Dunlap, Tanya L. Myers, Timothy J. Johnson
Summary: A spectral analysis tool called SpecQuant has been developed to identify and quantify gas-phase species from complex infrared spectra. It can handle both reference and experimental data with varying resolution and instrumental lineshape. The software uses classical least squares model and reference spectra to determine the mixing ratio of each species along with its estimation error. SpecQuant also provides visual inspection of the fit and residuals by displaying the calculated mixing ratio versus experimental data for each analyte.
APPLIED SPECTROSCOPY
(2023)
Article
Materials Science, Multidisciplinary
Dominika Swiech, Gaetano Palumbo, Natalia Piergies, Ewa Pieta, Aleksandra Szkudlarek, Czeslawa Paluszkiewicz
Summary: This study investigated the conformational changes of tryptophan on corroded stainless steel surfaces under controlled simulated inflammatory conditions, revealing that tryptophan adsorbs onto corroded surfaces mainly through the lone electron pair of the nitrogen atom and the protonated amine group, potentially improving corrosion resistance. Short-term immersion resulted in significantly higher inhibition efficiency of tryptophan acting as a mixed-type inhibitor.
Review
Instruments & Instrumentation
Stephanie Wright, Joseph Levermore, Yukari Ishikawa
Summary: Microplastic pollution is a global concern for the environment and human health. In order to assess the potential hazards associated with high concentrations of microplastics, it is necessary to have a comprehensive understanding of exposure concentrations. Infrared and near-infrared microspectroscopies have been used to analyze microplastics in various matrices, and recent advances in technology have allowed for the use of multivariate and machine learning algorithms. This article provides an up-to-date review of the literature on measuring microplastic exposure using infrared spectroscopy and highlights the recent advancements in this field.
APPLIED SPECTROSCOPY
(2023)
Article
Instruments & Instrumentation
Leigh C. Ward
Summary: Conventional methods for measuring deuterium concentration in body fluids involve isotope ratio mass spectrometry or FT-IR spectroscopy. This study explores an alternative method, ATR FT-IR, which allows for faster analysis with smaller sample volumes. The ATR FT-IR method demonstrated high precision in measuring deuterium in plasma, making it suitable for use in pediatrics where minimal blood sampling is required.
APPLIED SPECTROSCOPY
(2021)
Article
Instruments & Instrumentation
John Jerald Villamanca, Lemuel John Hermogino, Katherine Denise Ong, Brian Paguia, Lorenzo Abanilla, Antonio Lim, Lara Mae Angeles, Bernadette Espiritu, Maura Isais, Rock Christian Tomas, Pia Marie Albano
Summary: Early and accurate detection of colorectal cancer is crucial for prognosis and clinical management. Current diagnostic methods often lack sensitivity and specificity, highlighting the need for more accurate alternatives. This study presents support vector machine and feedforward neural network models using Fourier transform infrared spectral data to predict the classification of colorectal tissues. The results demonstrate the importance of attenuated total reflection Fourier transform infrared enhanced by artificial intelligence tools for the diagnosis of colorectal cancer.
APPLIED SPECTROSCOPY
(2022)
Article
Biophysics
Nusrat Iqbal, Dipak Kumar Hazra, Aloke Purkait, Amrish Agrawal, Jitendra Kumar
Summary: The study aimed to develop stable neem oil-based nanoemulsion formulation with enhanced pesticide activity, and findings showed that Prosopis juliflora acted as a bio-polymeric adjuvant to stabilize the nanoemulsion, improving stability and efficacy.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2022)
Article
Instruments & Instrumentation
Eva Mariasole Angelin, Susana Franca de Sa, Ines Soares, Maria Elvira Callapez, Joana Lia Ferreira, Maria Joao Melo, Mauro Bacci, Marcello Picollo
Summary: Plastics are increasingly used in modern and contemporary art and design, posing a challenge for heritage conservation due to degradation issues. Infrared spectroscopy is a well-established method for analyzing polymeric materials, but limitations exist for in situ investigation of fragile or degraded plastics. Reflectance spectroscopy offers a potential alternative for rapid measurements with minimal contact, though spectral interpretation can be challenging.Comparative studies between different reflectance FT-IR modes, such as ER FT-IR and DRIFTS, have not been extensively explored yet, and this study contributes to a better understanding of their application in plastic analysis.
APPLIED SPECTROSCOPY
(2021)
Article
Instruments & Instrumentation
Maria Lucia Protopapa, Emiliano Burresi, Martino Plamisano, Emanuela Pesce, Loredana Latterini, Nicola Taurisano, Giulia Quaglia, Raffaello Mazzaro, Vittorio Morandi
Summary: The research aims to engineer desired molecular sp(2) structures in graphene oxide by controlled oxidation of graphite powder, in order to achieve tunable chemical and microstructural properties for optoelectronics or sensing applications. Experimental results show that different concentrations of potassium permanganate and potassium hydroxide can change the microstructural and chemical properties of GO, leading to significant enhancement of photoluminescence and introduction of additional electronic energy levels for tuning the functional properties of GO.
APPLIED SPECTROSCOPY
(2022)
Article
Instruments & Instrumentation
Dmitrii D. Firsov, Semyon A. Khakhulin, Oleg S. Komkov
Summary: A new method of reflection anisotropy spectroscopy (RAS) has been developed, which utilizes a Fourier transform infrared (FT-IR) spectrometer for increased mid-IR efficiency. The use of a photoelastic modulator (PEM) in the optical setup allows for modulation of the linear polarization direction of the probe beam. An original measurement algorithm is proposed to account for the spectral inhomogeneity of the PEM efficiency and preserve the sign of the RAS signal. The application of this method to layered black phosphorus enables characterization of anisotropic interband transitions in this graphene-like semiconductor crystal.
APPLIED SPECTROSCOPY
(2023)
Article
Instruments & Instrumentation
Julia Davidson, Monica M. Arienzo, Zoe Harrold, Colin West, Erick R. Bandala, Sadye Easler, Katie Senft
Summary: Monitoring plastic litter in lakebeds is important for understanding its impact, but studies on this topic are limited. This study used underwater equipment to collect and analyze plastic litter in Lake Tahoe, United States, revealing the polymer composition and categories of the litter.
APPLIED SPECTROSCOPY
(2023)
Article
Materials Science, Multidisciplinary
Tongyu Han, Haifeng Shi, Yigang Chen
Summary: In this study, a novel S-scheme system was built by combining CuO with BiVO4 to activate PMS for antibiotic degradation. The system exhibited excellent visible light absorption performance and remarkable charge separation ability, suggesting its potential application in enhancing PMS activation and purifying antibiotics in water.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
Linlin Zhou, Tao Yang, Chunyu Guo, Kang Wang, Enhui Wang, Laipan Zhu, Hailong Wang, Sheng Cao, Kuo-Chih Chou, Xinmei Hou
Summary: Piezoelectric silicon carbide (SiC) has been considered for various applications due to its superior properties. However, its brittleness and unsatisfactory piezoelectric response have limited its use. In this study, PVDF/6H-SiC composite fiber films were fabricated and used for assembling high-performance energy harvesters and sensors. The results showed significant improvements in piezoelectric response and sensitivity compared to pure PVDF films. First-principles calculation and finite element analysis confirmed the effect of SiC nanoparticles on the composite film.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
Y. F. An, X. P. Chen, L. Mei, P. Ren, D. Wei, W. Q. Cao
Summary: This study systematically investigates the precipitation sequence of Fe-28Mn-11Al-1C-5Ni austenitic low-density steel and its influence on mechanical properties. The results reveal the transformation pathway of kappa' -carbides and B2 particles under different aging conditions. This research is meaningful for guiding the design of new generation dual-nano precipitation austenitic lightweight steel.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
Lei Yang, Tingkai Zhao, Abdul Jalil, Huijun Luo, Tao Jiang, Yuan Shu, Yazhou Yin, Weiyu Jia
Summary: In this study, a strategy utilizing oxygen vacancy concentration modulation was used to successfully grow semiconducting single-walled carbon nanotubes (s-SWCNTs) with narrow diameters. The Fe0.01Mg0.99O/CeO2(3) catalyst was employed to provide oxygen vacancies, allowing for selective etching of chemically active carbon nanotube caps during the growth process. The optimized conditions resulted in high purity s-SWCNTs with uniform diameters.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Letter
Materials Science, Multidisciplinary
Lingjun Xu, Pruch Kijkla, Sith Kumseranee, Suchada Punpruk, Tingyue Gu
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
X. P. Hu, Y. H. Zhang, C. B. Liu, H. Z. Cui
Summary: In this study, a novel polyaniline (PANI) nanosheet with barrier and passivation functions was synthesized, and its interaction with polymeric resin was enhanced by polydopamine (PDA) wrapping. The composite coating with incorporated PANI@PDA nanosheets showed improved corrosion resistance by providing a longer penetration path and inducing the formation of a passivation film on the metal substrate.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
Yan Zhang, Xuehua Liu, Zhiqiang Guo, Chenyu Jia, Feng Lu, Zirui Jia, Guanglei Wu
Summary: In this study, a self-assembling-etching-anchoring growth method was proposed to prepare MXene@Co electromagnetic wave absorbing materials. The hollow structure design and surface anchored growth of magnetic Co particles significantly enhanced the wave absorption performance of the absorber.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Review
Materials Science, Multidisciplinary
Yajing Ren, Yunfeng Li, Guixu Pan, Ning Wang, Yan Xing, Zhenyi Zhang
Summary: Photocatalytic technology utilizing sunlight as a driving force can convert solar energy into other energy sources for storage and use. CdS, as a typical reducing semiconductor, has attracted attention in photocatalysis due to its suitable bandgap and strong reducing ability. However, the photocatalytic performance of CdS is limited by carrier recombination and photocorrosion. Therefore, CdS has been widely developed as a reducing photocatalyst in constructing S-scheme heterojunctions to overcome these limitations.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
Diao-Feng Li, Chun-Guang Bai, Zhi-Qiang Zhang, Hui-Bo Zhang, Nan Li, Jian Zhao
Summary: A novel compliant spinal fixation based on compliant mechanisms is designed to effectively reduce stress-shielding effect and adjacent segment degeneration (ASD), but it requires high properties of the used materials. Bulk metallic glasses (BMGs), as young biomaterials, demonstrate excellent comprehensive properties, making them attractive for compliant spinal fixation. In this study, the large deflection deformation behaviors of Zr61Ti2Cu25Al12 (at.%, ZT1) BMG beam were systematically investigated, including elastic, yielding, and plastic deformations. The theoretical nonlinear analytical solution curve predicts the load-deflection relation within the elastic deformation regime and assists in capturing the yielding event, serving as a powerful design tool for engineers. To accurately capture the beginning of the yielding event in biomedical implant applications, the concept of bending proof strength (sigma p,0.05%) with tiny permanent strain of 0.05% was proposed and determined, which is significant for setting the allowable operating limits of the basic flexible elements. The plastic deformation driven by the bending moment can be classified into two stages: the initial stage characterized by nucleation and intense interaction of shear bands, and the second stage dominated by the progressive propagation of shear bands and emergence of shear offsets. The plasticity of BMG beam structures depends on the BMG's inherent plastic zone size (rp), and when the half beam thickness is less than that of rp, the plastic deformation of BMGs behaves in a stable manner, effectively serving as the margin of safety.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Review
Materials Science, Multidisciplinary
Yanlin Li, Zhu Ma, Shanyue Hou, Qianyu Liu, Guangyuan Yan, Xiaoshan Li, Tangjie Yu, Zhuowei Du, Junbo Yang, Yi Chen, Wei You, Qiang Yang, Yan Xiang, Shufang Tang, Xuelin Yue, Meng Zhang, Wenfeng Zhang, Jian Yu, Yuelong Huang, Jiale Xie, Chun Tang, Yaohua Mai, Kuan Sun
Summary: This paper provides an overview of hydrogen progress from solar energy to solar cells, with a focus on photovoltaic-electrolysis and photoelectrochemical/photovoltaic systems. Both systems have achieved a solar-to-hydrogen efficiency of over 10% and show great potential for large-scale application. The challenges and opportunities in this field, including configuration design, electrode materials, and performance evaluation, are summarized. The paper also analyzes and presents perspectives on the potential commercial application and further scientific research for the development of solar-to-hydrogen.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
L. K. Huang, F. Liu, M. X. Huang
Summary: The bainite transformation in medium Mn steels has been experimentally and theoretically studied, and it has been found that the transformation kinetics is slow. However, the introduction of dislocations can significantly accelerate the transformation rate. A new "carbon depletion mechanism" is proposed to explain the role of dislocations in the acceleration of bainite transformation, and a physical model is developed to quantitatively understand the kinetics of bainite transformation.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Review
Materials Science, Multidisciplinary
Jing Qiao, Lutong Li, Jiurong Liu, Na Wu, Wei Liu, Fan Wu, Zhihui Zeng
Summary: Rare earth plays a crucial role in electromagnetic wave absorption materials, and the strategies of doping rare earth elements and constructing rare earth oxide composites are important for the fabrication of high-efficiency electromagnetic wave absorption materials. This review provides a comprehensive summary of the research background, classification, features, progress, and future development of rare earth electromagnetic wave absorption materials, offering guidance for future development.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
Jiacheng Ge, Yao Gu, Zhongzheng Yao, Sinan Liu, Huiqiang Ying, Chenyu Lu, Zhenduo Wu, Yang Ren, Jun-ichi Suzuki, Zhenhua Xie, Yubin Ke, Jianrong Zeng, He Zhu, Song Tang, Xun-Li Wang, Si Lan
Summary: Fe-based metallic glasses are promising materials in the fields of advanced magnetism and sensors. This study proposes a novel approach to tailor the amorphous structure through liquid-liquid phase transition, and provides insights into the correlation between structural disorder and magnetic order. The results show that the liquid-liquid phase transition can induce more locally ordered nanodomains, leading to stronger exchange interactions and increased saturation magnetization. The increased local heterogeneity also enhances magnetic anisotropy, resulting in a better stress-impedance effect.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
Hao Yu, Xin Kou, Xueqing Zuo, Ding Xi, Haijun Guan, Pengfei Yin, Lijia Xu, Yongpeng Zhao
Summary: Metal-organic frameworks derived composites are promising EMW absorbers. Cation substitution can improve their absorption performance by regulating morphology and atomic space occupation. However, the mechanisms of how cation substitution affects EMW absorption performance are still not well understood. In this study, imidazolic MOFs were fabricated and tailored by cation substitution strategy to prepare porous composites. The samples showed optimal reflection loss and effective absorption bandwidth values under low filling rate and thin thickness conditions. The intercoupling between multiple atoms and the porous structure introduced by cation substitution contribute to the improved absorption performance.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)
Article
Materials Science, Multidisciplinary
Lina Wang, Peiyi Yan, Huairui Chen, Zhuo Li, Shu Jin, Xiaoxiang Xu, Jun Qian
Summary: The narrow bandgap semiconductor MgIn2S4 has been grown onto In2O3 nanofibers using an in situ growing method. The resulting MgIn2S4-In2O3 hybrid nanofibers exhibit strong visible light absorption and intimate MgIn2S4/In2O3 heterointerfaces, leading to highly efficient photocatalytic disinfection of Escherichia coli.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2024)