Article
Biotechnology & Applied Microbiology
T. Nitrosetein, M. Wongwattanakul, C. Chonanant, C. Leelayuwat, N. Charoensri, P. Jearanaikoon, A. Lulitanond, B. R. Wood, P. Tippayawat, P. Heraud
Summary: This study successfully differentiated 60 clinical isolates of Enterococcus faecium and Enterococcus faecalis using ATR-FT-IR spectroscopy and chemometric modelling. The support vector machine (SVM) was found to be the best classification model with the highest correlation to PCR results.
JOURNAL OF APPLIED MICROBIOLOGY
(2021)
Article
Instruments & Instrumentation
Linying Zhong, Mingshan Xu, Suqin Sun, Qun Zhou, Ling Dong, Jianbo Chen
Summary: Herbal powder preparations (HPPs) are commonly used in traditional medicine, and their safety and efficacy can be ensured through the use of attenuated total reflection Fourier transform infrared spectroscopy (ATR FT-IR) imaging or mapping. This method allows for the individual measurement of different ingredients in an HPP sample, increasing the specificity and sensitivity of infrared spectral identification. The ATR FT-IR mapping method has been successfully used to identify prescribed and abnormal ingredients in oral ulcer pulvis, demonstrating its feasibility and effectiveness in the identification of HPPs.
APPLIED SPECTROSCOPY
(2023)
Article
Instruments & Instrumentation
Thulya Chakkumpulakkal Puthan Veettil, Kamila Kochan, Karen J. Edler, Paul De Bank, Philip Heraud, Bayden R. Wood
Summary: Malaria is a significant global health concern, and vibrational spectroscopy shows promise as a rapid and cost-effective tool for early detection. Improvements are needed in the measurement procedures and sample preparation to enhance the efficiency of screening for parasitic infections.
APPLIED SPECTROSCOPY
(2022)
Article
Chemistry, Analytical
Chao Tan, Hui Chen, Zan Lin, Die Wu, Bin Cheng, Wen Liu
Summary: Juice counterfeiting has negative impacts on product quality and consumer trust. This study explores the use of ATR-MIR spectroscopy and interval-based PLS and full-spectrum PLS models to detect adulteration of apple juice. The results show that the changeable moving window PLS model offers the best performance and could be an alternative method for quality control of juice.
ANALYTICAL LETTERS
(2023)
Article
Instruments & Instrumentation
Polina Fomina, Antoni Femenias, Michael Hlavatsch, Julian Scheuermann, Nicolas Schaefer, Stephan Freitag, Nageshvar Patel, Achim Kohler, Rudolf Krska, Johannes Koeth, Boris Mizaikoff
Summary: The analytical performance of a compact infrared attenuated total reflection spectrometer using a pyroelectric detector array has been evaluated and compared to a conventional laboratory Fourier transform infrared system for applications in food analysis. Analytical characteristics including sensitivity, repeatability, linearity of the calibration functions, signal-to-noise ratio, and spectral resolution have been derived for both approaches. Representative analytes of relevance in food industries (i.e., organic solvents, fatty acids, and mycotoxins) have been used for the assessment of the performance of the device and to discuss the potential of this technology in food and feed analysis.
APPLIED SPECTROSCOPY
(2023)
Article
Chemistry, Analytical
Ge Qin, Shihao Wu, Xiaolong Hou, Huichao Wang, Huaice Liu, Zhenjun Jia
Summary: This article proposes a non-destructive, fast, and accurate method for inspecting and identifying pigment evidence. The method utilizes infrared spectra combined with multivariate classification models to accurately identify pigment samples, reducing inspection costs and improving efficiency. It can provide reference and guidance for inspecting and identifying relevant cases and other physical evidence inspections.
MICROCHEMICAL JOURNAL
(2023)
Article
Instruments & Instrumentation
Brian Thomas, Kevin Anderson, Imesha De Silva, Guido Verbeck, Stephen Taylor
Summary: The analysis of collagen stability is important in various fields, and traditional methods for measuring collagen decay rates have limitations. This study introduces a new protocol using ATR FT-IR spectroscopy and SHG imaging to assess bone collagen decay. The results show that ATR FT-IR can serve as a precise and simple tool for measuring bone collagen decay rates, providing a promising alternative to traditional methods.
APPLIED SPECTROSCOPY
(2023)
Article
Instruments & Instrumentation
Pjotr Meyvisch, Pieter R. Gurdebeke, Henk Vrielinck, Kenneth Neil Mertens, Gerard Versteegh, Stephen Louwye
Summary: This study introduces a new method for infrared spectroscopic analysis of individual dinoflagellate cyst walls, reducing nonchemical artifacts and evaluating the impact of sample preparation, specimen morphology and size, and data processing steps. Guidelines are proposed to facilitate the collection and qualitative interpretation of highly reproducible spectrochemical data, paving the way for a systematic exploration of dinocyst chemistry and its potential as a chemotaxonomical tool or proxy.
APPLIED SPECTROSCOPY
(2022)
Article
Instruments & Instrumentation
Jakub Budil, Pavla Stenclova, Alexander Kromka, Petra Liskova
Summary: In this study, infrared attenuated total reflection spectroscopy coupled with optical and confocal laser scanning microscopy was used to analyze the real-time development of Pseudomonas syringae biofilm. The kinetics of representative band areas in the spectral window 4000-800 cm(-1) were analyzed to characterize different developmental stages of the biofilm.
APPLIED SPECTROSCOPY
(2023)
Article
Instruments & Instrumentation
Yongliang Liu, Hee-Jin Kim
Summary: Maturity is a critical factor affecting the processing and performance of cotton fiber. Rapid and accurate identification of fiber maturity phenotypes and genotypes is important for breeders. This study explored the use of FT-IR combined with SIMCA-PCA to discriminate between different genotypes of wild type (WT) cotton fibers.
APPLIED SPECTROSCOPY
(2023)
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
Dale Christensen, Aazam Khoshmanesh, David Perez-Guaita, Inaki Iturbe-Ormaetxe, Scott O'Neill, Bayden R. Wood
Summary: Research has shown that attenuated total reflection Fourier transform infrared spectroscopy can successfully detect Wolbachia in Ae. aegypti eggs and differentiate between different strains, with an infection classification accuracy of 97%. Furthermore, it was found that the disruption of host lipid profile by Wolbachia is a key driver in the spectral differences between sample classes.
APPLIED SPECTROSCOPY
(2021)
Article
Instruments & Instrumentation
Maya Musa, Thomas G. Kaye, Willy Bieri, Adolf Peretti
Summary: This study utilized micro-ATR technology to analyze three Burmite samples, combining UV imaging technique with infrared spectroscopy to study fluorescence information and molecular vibrational modes of amber, aiming to comprehensively characterize the Burmese amber collection.
APPLIED SPECTROSCOPY
(2021)
Article
Optics
Jeremy Xuan Yu Chew, Zi Heng Lim, Y. Qi, Guangcan Zhou, Guangya Zhou
Summary: Infrared devices are increasingly used in various applications. This paper introduces a novel dispersive spectrometer that has high-throughput and decoupled spectral resolution. The proposed spectrometer utilizes a two-stage Hadamard transform encoding process to increase the signal-to-noise ratio. With a single-pixel detector, the system can be easily implemented in other desired wavelengths. Additionally, a method is developed to remove the need for uniform illumination and improve the ease of device design for in situ measurement.
Article
Instruments & Instrumentation
Alexander Samokhvalov, Stanley McCombs
Summary: Attenuated total reflection Fourier transform infrared (ATR FT-IR) spectroscopy has been modified for in situ time-dependent monitoring of solid-gas reactions in controlled atmosphere. A new gas flow chamber attachment has been described for creating controlled atmosphere surrounding the sample. This method and apparatus show promise for mechanistic studies and analysis of various solid-gas reactions.
APPLIED SPECTROSCOPY
(2023)
Article
Instruments & Instrumentation
Yongjiao Tang, Nan Jing, Pudun Zhang
APPLIED SPECTROSCOPY
(2015)
Article
Chemistry, Physical
Pudun Zhang, Miriam Unger, Frank Pfeifer, Heinz W. Siesler
JOURNAL OF MOLECULAR STRUCTURE
(2016)
Article
Materials Science, Characterization & Testing
Genshi Liu, Xi Zhang, Tianxin Zhang, Jichuan Zhang, Pudun Zhang, Wencai Wang
Article
Materials Science, Multidisciplinary
Tongtong Dou, Nan Jing, Bingyao Zhou, Pudun Zhang
JOURNAL OF MATERIALS SCIENCE
(2018)
Article
Materials Science, Multidisciplinary
Yanying Zhang, Yangguang Li, Pudun Zhang
JOURNAL OF MATERIALS SCIENCE
(2014)
Article
Materials Science, Multidisciplinary
Wenwen Li, Guixin Cai, Pudun Zhang
JOURNAL OF MATERIALS SCIENCE
(2019)
Article
Spectroscopy
Bingyao Zhou, Shui Hu, Pudun Zhang
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2020)
Article
Chemistry, Multidisciplinary
Zekun Zhang, Rui Tian, Pudun Zhang, Chao Lu, Xue Duan
ACS CENTRAL SCIENCE
(2020)
Article
Polymer Science
Tongtong Dou, Bingyao Zhou, Shui Hu, Pudun Zhang
Summary: The evolution of the structural polymorphs of PLLA during the in vitro mineralization of its HA nanocomposites was studied using ATR FTIR mapping and PCA. Alternate transitions between amorphous and crystalline PLLA, as well as between alpha-and alpha'-PLLA, were observed during mineralization in different porous and compact PLLA/HA nanocomposites.
Article
Spectroscopy
Hongxia Qi, Zizhuo Zhai, Xipeng Dong, Pudun Zhang
Summary: A highly luminescent nitrogen-doped carbon quantum dots were prepared and used to develop a sensitive and selective quantification method for detecting hypochlorite ions. The method showed excellent linearity, low detection and quantification limits, and was successfully applied in real water samples and text encryption.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Spectroscopy
Bingyao Zhou, Hong Wang, Shui Hu, Qi Yan, Pudun Zhang
Summary: The effect of montmorillonite on the crystallization behavior of poly(L-lactic acid) was studied using variable-temperature FTIR spectroscopy. The results showed that the addition of a small amount of montmorillonite delayed the cold crystallization of the poly(L-lactic acid), while a larger amount advanced the cold crystallization. However, the introduction of montmorillonite did not affect the phase transition order of the poly(L-lactic acid).
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Nanoscience & Nanotechnology
Zizhuo Zhai, Xipeng Dong, Hongxia Qi, Ranting Tao, Pudun Zhang
Summary: In this work, carbon quantum dots (CQDs) with an average size of 2.3 nm and a photothermal conversion efficiency (PCE) of up to 59.4% were synthesized by a simple microwave-assisted solvothermal method. The CQDs exhibited unique surface chemical states, including abundant pyrrole, amide, carboxyl, and hydroxyl groups, which ensured the high PCE. These CQDs were incorporated into a thermoresponsive poly(N-isopropylacrylamide) (PNIPAM) to form a CQDs@PNIPAM nanocomposite, and a reversible bilayer hydrogel composed of CQDs@PNIPAM and polyacrylamide (PAM) was fabricated.
ACS APPLIED BIO MATERIALS
(2023)
Article
Instruments & Instrumentation
Zhiwei Yan, Qian Li, Pudun Zhang
APPLIED SPECTROSCOPY
(2017)
Article
Chemistry, Analytical
Wang Qian, Jiang Xiao-Ting, Xin Yun-Zi, Cui Jun-Xian, Zhang Pu-Dun
CHINESE JOURNAL OF ANALYTICAL CHEMISTRY
(2014)
Article
Spectroscopy
Zh. E. Ozbekova, A. A. Abdyldaev, A. A. Kulmyrzaev
Summary: This study compared two drying methods for cow and yak muscles, finding that freeze drying caused less discoloration. Additionally, analysis of fluorescence spectra allowed for accurate prediction of chemical composition and color characteristics of the muscles.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Leo Mandic, Ivan Ljubic, Iva Dzeba
Summary: In this study, a combined experimental and computational approach was used to investigate the photoexcitation and photodegradation mechanisms of Doxazosin (DOX). The results provide valuable insights into the primary events following the photoexcitation of DOX and its potential applications.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Xiufeng Wang, Yao Jin, Wenhui Ai, Siqi Wang, Zhiqing Zhang, Ting Zhou, Fang Wang, Guodong Zhang
Summary: This study successfully synthesized near infrared fluorescence Ag2S quantum dots (QDs) and developed a dual-mode sensor for sulfide anion using the excellent oxidase-like characteristics of manganese dioxide (MnO2) nanosheets. The sensor showed a wider detection range, higher sensitivity, and shorter reaction time, making it suitable for highly selective detection of sulfide in different concentration ranges.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Yafei Li, Yanming Ma, Chuantao Zheng, Di Yu, Lien Hu, Shuo Yang, Fang Song, Yadan Li, Shuanghai Liu, Zhanrui Zhang, Yu Zhang, Yiding Wang, Frank K. Tittel
Summary: To effectively monitor gas explosion and coal spontaneous combustion in coal mine, an intrinsically safe and explosion-proof dual-gas sensor system was developed for methane (CH4) and carbon monoxide (CO) measurement. The system achieved different measurement ranges using laser scanning and gas cells, and improved stability and accuracy through gas pre-treatment and temperature compensation algorithm.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Pei-Rong Chen, Li-Kang Chu
Summary: In this study, the hydrates of glyoxal were investigated using infrared absorption spectrometry. The results showed that at low concentrations, glyoxal mainly exists as monomeric dihydrate. These findings provide suitable detection windows for further research on the roles of glyoxal and its hydrates in atmospheric and aerosol chemistry, as well as the relevant reaction kinetics.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Nichole O'Neill, Thamires A. Lima, Fabio Furlan Ferreira, Nicolas J. Alvarez, Reinhard Schweitzer-Stenner
Summary: This study determines the main fibril axis of GHG gel-forming fibrils using various techniques and compares the results with simulated data. The analysis suggests that the hydrophobic xz-surfaces of GHG fibrils could be a good target for the adsorption of hydrophobic drugs.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Mengyuan Liu, Hanchuang Zhu, Yikun Fang, Caiyun Liu, Xinke Li, Xiaohui Zhang, Lixue Ma, Kun Wang, Miaohui Yu, Wenlong Sheng, Baocun Zhu
Summary: ABHS is an efficient fluorescent probe that can accurately and sensitively detect Al3+ with strong resistance to interference. It also demonstrates excellent detection and imaging capabilities in complex real samples.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Ahmed S. El-Shafie, Evana Rahman, Yasser Gadelhak, Rehab Mahmoud, Marwa El-Azary
Summary: The recycling of waste mandarin peels into biochar (MRBC) has been used as a high performance and cost-effective adsorbent for treating polluted wastewater effluents. Batch adsorption studies were conducted to analyze the adsorption competency of MRBC on two dyes, methylene blue (MB) and basic fuchsin (BF), either in individual solutions or binary combinations. The results showed that MRBC was capable of effectively removing a high percentage of both dyes. However, the adsorption capacity decreased when the dyes were combined. The cost estimation of MRBC production and wastewater treatment indicated that both were relatively low.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Anindita Bhatta, Jahnabi Upadhyaya, Dipak Chamlagai, Lincoln Dkhar, Pynskhemborlang T. Phanrang, Mohan Rao Kollipara, Sivaprasad Mitra
Summary: Derivatives of thiazole-pyrazole fused benzo-coumarin compounds were synthesized and their photophysical properties were investigated. The synthesized coumarin compounds showed potential as therapeutic agents for Alzheimer's disease, inhibiting acetylcholinesterase activity. The presence of human serum albumin was found to affect the inhibition activity.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Yongwei Duan, Quancheng Liu, Yiju Zhu, Qi Zhang, Xiaohui Duan, Hu Deng, Liping Shang
Summary: In this study, the phase transition of CL-20 was observed using terahertz spectroscopy, and quantum chemical calculations were employed to analyze the vibrations. The results indicated changes in the vibrations of CL-20 before and after phase transition.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Yuefeng Gao, Sai Xu, Baojiu Chen
Summary: This study synthesized Cs2NaInCl6 nanocrystals co-doped with Sb3+ and Tb3+ ions as probes for copper ions detection in lubricating oil. The introduction of Sb3+ effectively reduced the band gap of the host material and enabled energy transfer pathway for Tb3+ emission. The doped Tb3+ ions resulted in the suppression of emission due to electron transfer. The Cs2NaInCl6: 2.5 %Sb3+, 40 %Tb3+ NCs exhibited superior sensitivity and selectivity for copper ions detection.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Yu Liu, Yue Zhang, Changyao Liu, Ce Wang, Baocai Xu, Li Zhao
Summary: A highly sensitive detection platform for heparin was developed using a cationic fluorescent dye (cresyl violet acetate) as a fluorescence probe. The platform demonstrated high selectivity towards heparin and achieved detection in both HEPES solution and serum.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Lopamudra Roy, Nivedita Pan, Susmita Mondal, Ria Ghosh, Md. Nur Hasan, Neha Bhattacharyya, Soumendra Singh, Kallol Bhattacharyya, Arpita Chattopadhyay, Samir Kumar Pal
Summary: The study focuses on the interaction between reactive oxygen species (ROS) and a spectroscopic probe called Rose Bengal (RB), encapsulated in nanoscopic sodium dodecyl sulphate (SDS) micelles and entrapped in microscopic nylon 66 solid matrix. The research demonstrates efficient interaction between ROS and RB-SDS, and investigates the mechanism of hydroxyl radicals generation. Based on these findings, a prototype device utilizing RB embedded in a nylon thin film for quantification of ROS in extracellular fluids and food materials was developed.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Xiaosong Sun, Qihao Cui, Wenyue Dong, Qian Duan, Teng Fei
Summary: Conjugated porous polymers (CPPs) are promising sensing materials and their application in aqueous media is limited. In this study, we synthesized CPPs with porous structure and prepared nanoparticles, enabling efficient photoluminescence sensing of nitroaromatic explosives in aqueous phase.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Spectroscopy
Maria Cristina Caggiani, Germana Barone, Paolo Mazzoleni
Summary: Raman spectroscopy is commonly used for studying glassy materials in cultural heritage, but it is more difficult to interpret the spectra and apply the technique with portable instruments. In contrast, diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) can be used in archaeometric investigations as it is portable and non-invasive. However, there is limited application of this technique to historical glasses. This exploratory work demonstrates the potential of DRIFTS, in combination with portable X-ray Fluorescence (pXRF) and EDS microanalyses, for studying the composition and alteration of glass samples in cultural heritage.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)