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
Biochemistry & Molecular Biology
Maria Teresa Caccamo, Salvatore Magazu
Summary: The aim of this study is to investigate the hydration properties of glucose and its hydrogen bond network in glucose-water mixtures. The temperature behavior of these mixtures was characterized using Fourier Transform InfraRed (FTIR) spectroscopy, specifically by analyzing the intramolecular OH stretching mode in the spectral range of 3000-3700 cm(-1) through the evaluation of Spectral Distance (SD). The results obtained were consistent with literature data, showing a maximum strength of the hydrogen bond network at a specific concentration value.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Chemistry, Applied
Leandro da Rocha Novaes, Argimiro Resende Secchi, Vera Maria Martins Salim, Neuman Solange de Resende
Summary: This study explores the relationship between feed properties, operating conditions, and deactivation phenomenon during middle distillates hydroprocessing. An accelerated deactivation methodology was employed to study this phenomenon. The results show that 100 hours of operation is needed for the initial deactivation during the stabilization step. Easy and portable tools, such as Fourier Transform Infrared analysis and density measurements, were successfully used to monitor and evaluate the hydrotreating process. It was also found that feedstock properties can directly influence the deactivation phenomenon, and process modifications can be identified using Fourier Transform Infrared analysis.
Article
Environmental Sciences
Cristopher Dominguez-Hernandez, Cristina Villanova-Solano, Marta Sevillano-Gonzalez, Cintia Hernandez-Sanchez, Javier Gonzalez-Salamo, Cecilia Ortega-Zamora, Francisco Javier Diaz-Pena, Javier Hernandez-Borges
Summary: Partial evaporation and solidification of plastic materials, mainly microplastics, onto coastal rocks can form a new solid structure called plastitar. These formations have been found in several islands of the Canary Islands archipelago and can permanently attach to the rock, occupying a significant portion of the sampled area. The plastitar primarily consists of tar and polyethylene, with microplastics in the form of fragments, pellets, and lines. The increasing presence of plastics, particularly microplastics, in coastal environments may lead to the common occurrence of these new plastic formations, which require further investigation on their long-term effects on coastlines.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Le Thi Thu Hien, Anne Gobin, Duong Thi Lim, Dang Tran Quan, Nguyen Thi Hue, Nguyen Ngoc Thang, Nguyen Thanh Binh, Vu Thi Kim Dung, Pham Ha Linh
Summary: Soil salinity has a significant impact on agricultural production, especially in low-lying coastal areas where saltwater intrusion is a growing concern. Monitoring salinity is challenging due to the influence of soil moisture on the soil's spectral signature. The study found that Fourier-transform infrared spectroscopy can be used to map salt-affected soils, particularly in inaccessible areas. Advancements in thermal satellite sensors may provide possibilities for monitoring soil salinity in the future.
Article
Environmental Sciences
Weiqian Jia, Aleksandra Karapetrova, Mengjun Zhang, Libo Xu, Kang Li, Muke Huang, Jie Wang, Yi Huang
Summary: This study combined laser direct in-frared (LDIR) and Fourier-transform infrared (FTIR) methods to investigate microplastics in agricultural soils. The results showed that microplastics were present in high abundance, with particles ranging from 10 to 500μm accounting for the majority. Polyethylene, polypropylene, and polyvinyl chloride were the dominant polymer types. Reclaimed water from sewage treatment plants, drip irrigation utilities, and residual plastic film were identified as potential sources. The study also highlighted the underestimation of microplastic contamination in agricultural soils using visual counting methods.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Josef Brandt, Franziska Fischer, Elisavet Kanaki, Kristina Enders, Matthias Labrenz, Dieter Fischer
Summary: Analyzing the environmental occurrence of MP particles has received significant attention in the past decade, with a focus on effective risk assessment through accurate sampling and analysis methods. The choice of subsampling methods is crucial for reducing MP particle count errors, and increasing the fraction of MP particles in samples can help achieve lower errors.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2021)
Review
Instruments & Instrumentation
Bijay Ratna Shakya, Pragya Shrestha, Hanna-Riikka Teppo, Lassi Rieppo
Summary: FTIR spectroscopy has shown potential in skin cancer research, especially for analyzing different types of skin cancers. Although the usefulness of FTIR spectroscopy in skin cancer research has been demonstrated, further research and promotion are needed to establish it as a routine method in the field.
APPLIED SPECTROSCOPY REVIEWS
(2021)
Article
Spectroscopy
Xiaorong Yang, Xin Wei, Kai Yu, Changwu Wan, Yuanhe Wang, Shimei Huang, Qinru Sun, Jiang Huang
Summary: This study successfully identified myocardial fibrosis and established a prediction model using ATR-FTIR spectroscopy combined with chemometrics, demonstrating high sensitivity and specificity.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Review
Instruments & Instrumentation
Karel Kotaska, Julia Werle, Bozena Hosnedlova, Rene Kizek, Richard Prusa
Summary: This review highlights the use of Fourier-transform infrared (FTIR) spectrometry in the management of urolithiasis. By determining the composition of urinary stones, current therapies can be assessed and rare stones can be identified.
APPLIED SPECTROSCOPY REVIEWS
(2022)
Article
Physics, Multidisciplinary
Wilhelm Eschen, Sici Wang, Chang Liu, Robert Klas, Michael Steinert, Sergiy Yulin, Heide Meissner, Michael Bussmann, Thomas Pertsch, Jens Limpert, Jan Rothhardt
Summary: This study demonstrates broadband holography-assisted coherent imaging with a resolution of less than 35 nm. The method enables the combination of high-resolution coherent imaging with a large spectral bandwidth, allowing for studying ultrafast dynamics on the smallest spatio-temporal scales. This approach presents a significant advancement in nanoscale coherent imaging techniques.
COMMUNICATIONS PHYSICS
(2021)
Article
Spectroscopy
Xiaojie Zhou, Weilin Wang, Jiajia Zhong, Wenjie Yu, Yuzhao Tang, Qun Shu
Summary: Gestational diabetes mellitus (GDM) is a common complication during pregnancy that can have severe effects on the health of the mother and newborn. This study used Fourier transform infrared microspectroscopy to analyze the biochemical composition of GDM placental tissue and found changes in lipid conformation, increased lipid oxidation, and alterations in protein structure. These findings provide insight into how GDM affects the placenta and causes metabolic changes in the mother and fetus.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Agriculture, Dairy & Animal Science
Giorgia Stocco, Christos Dadousis, Giuseppe Massimo Vacca, Michele Pazzola, Pietro Paschino, Maria Luisa Dettori, Alessandro Ferragina, Claudio Cipolat-Gotet
Summary: This study confirmed the possibility of using FTIR spectra and multivariate analyses to accurately assign milk samples to their breeds of origin. R-VAL(2) values obtained with the CRV procedure were moderate to high for the majority of coagulation traits, with RMSEVAL and ratio performance deviation values increasing as the coagulation process progresses from rennet addition. Prediction accuracy obtained with the SCV were strongly influenced by the breed, presenting general low values restricting a practical application.
JOURNAL OF DAIRY SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Himanshu Tripathi, Gaurav Chandra Pandey, Ashutosh Dubey, Subham Kumar Shaw, Nand Kishore Prasad, S. P. Singh, Chandana Rath
Summary: The study focused on the application of strontium bioactive glass with ferrite composites for biocompatibility and magnetic hyperthermia. In vitro experiments and chemical analysis confirmed their bioactivity and antibacterial effects.
ADVANCED ENGINEERING MATERIALS
(2021)
Article
Agriculture, Dairy & Animal Science
H. Toledo-Alvarado, M. A. Perez-Cabal, R. J. Tempelman, A. Cecchinato, G. Bittante, G. de Los Campos, A. Vazquez
Summary: Analysis using data from Brown Swiss cows reared in northeastern Italy revealed different associations between milk samples drawn during different days in milk intervals and days open. Milk samples drawn during days 31 to 60 and 61 to 90 were found to be most strongly associated with days open, as they are typically associated with negative energy balance and peak lactation.
JOURNAL OF DAIRY SCIENCE
(2021)