Article
Multidisciplinary Sciences
Helina Heino, Lassi Rieppo, Tuija Mannisto, Mikko J. Sillanpaa, Vesa Mantynen, Simo Saarakkala
Summary: ATR-FTIR spectroscopy coupled with machine learning-based PLS-DA was used to study the detection of SARS-CoV-2 from nasopharyngeal swab samples. The results indicate that the ATR-FTIR spectrum contains specific information for SARS-CoV-2 infection, but the diagnostic performance is moderate.
SCIENTIFIC REPORTS
(2022)
Article
Chemistry, Analytical
David Mabwa, Ketankumar Gajjar, David Furniss, Roberta Schiemer, Richard Crane, Christopher Fallaize, Pierre L. Martin-Hirsch, Francis L. Martin, Theordore Kypraios, Angela B. Seddon, Sendy Phang
Summary: This study demonstrates the discrimination of endometrial cancer from benign controls using mid-infrared spectroscopy of dried plasma or serum samples. Different spectral data ranges have an impact on discrimination results, and good classification performance can still be achieved even when a section of the bio-fingerprint region is removed.
Article
Chemistry, Physical
E. P. Kovalev, A. S. Shalygin, S. A. Prikhod'ko, N. Yu Adonin, O. N. Martyanov
Summary: In this study, the absorption of acetylene by ionic liquids (ILs) was investigated using in situ ATR-FTIR spectroscopy. The analysis revealed a correlation between the spectral changes of absorbed acetylene and the nature of ILs.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Spectroscopy
Weixiao Zhan, Xiaodong Yang, Guoquan Lu, Yun Deng, Linnan Yang
Summary: A rapid analysis method using ATR-FTIR was developed to effectively distinguish the four different types of G. elata powders, providing a platform for rapid quality inspection.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Health Care Sciences & Services
Ishaan Maitra, Camilo L. M. Morais, Kassio M. G. Lima, Katherine M. Ashton, Danielle Bury, Ravindra S. Date, Francis L. Martin
Summary: This study demonstrates the potential of ATR-FTIR spectroscopy in classifying and differentiating different stages of oesophageal transformation to oesophageal adenocarcinoma. The study used various algorithms for variable selection and classification, with PCA-QDA showing the highest accuracy in classification. The findings highlight the importance of further research in identifying biochemical markers for early detection of neoplastic changes in susceptible epithelium.
JOURNAL OF PERSONALIZED MEDICINE
(2023)
Article
Biochemistry & Molecular Biology
Magdalena Kolodziej, Karolina Chrabaszcz, Ewa Pieta, Natalia Piergies, Julia Rudnicka-Czerwiec, Halina Bartosik-Psujek, Czeslawa Paluszkiewicz, Marian Cholewa, Wojciech M. Kwiatek
Summary: Multiple sclerosis (MS) is a chronic neurodegenerative disease that affects the central nervous system. The diagnosis of MS is crucial for successful treatment, and it typically involves clinical observation, MRI, and analysis of cerebrospinal fluid (CSF). In this study, the researchers propose using spectroscopy as an alternative diagnostic tool, specifically Attenuated Total Reflectance Fourier Transform Infrared (ATR-FTIR) spectroscopy. By analyzing blood plasma and serum samples from MS patients and healthy individuals, the researchers identified specific spectral patterns that can differentiate between MS samples and non-MS samples.
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
(2022)
Article
Spectroscopy
Hao Wu, Zefeng Li, Xinggong Liang, Run Chen, Kai Yu, Xin Wei, Gongji Wang, Wumin Cai, Huiyu Li, Qinru Sun, Zhenyuan Wang
Summary: In this study, a rat model of delayed splenic rupture was constructed and evaluated using various staining techniques. The pathological changes of spleen tissue at different times after splenic injury were observed, and the relationship between these changes and FTIR spectroscopy was investigated. The results showed that injured tissues had different protein secondary structures compared to non-injured tissues, and different phases of delayed splenic rupture could be distinguished by protein secondary structures and the content of amide I and amide II. A classification model based on SVM-DA accurately inferred the phases of splenic rupture. These findings suggest that FTIR spectroscopy combined with pathological staining techniques has the potential for forensic identification and can provide diagnostic support for clinical persistent injuries.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Review
Biochemistry & Molecular Biology
Yana Tkachenko, Przemyslaw Niedzielski
Summary: This study aims to collect and review articles related to mineral investigation using FTIR, addressing the issue of data deficiency in geochemistry. It also discusses various analytical techniques and tools for data pre-processing of IR spectra.
Article
Spectroscopy
Anjali Tomar, Reeta R. Gupta, Amanpreet Kaur, J. K. Semwal, Sanjeev Kumar, S. K. Mehta, Shweta Sharma
Summary: This study examines thermal papers using non-destructive methods such as ATR-FTIR spectroscopy and Video Spectral Comparator (VSC), showing high discriminating power through qualitative and quantitative analysis. Multivariate analysis using HCA and PCA demonstrates the effectiveness of the study, which also analyzes the impact of different storage conditions on the fading rate of thermal papers.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Chemistry, Analytical
Juliana Melo Duarte, Nadia Gabrielle Silva Sales, Jez Willian Batista Braga, Candice Bridge, Mark Maric, Marcelo Henrique Sousa, Juliano de Andrade Gomes
Summary: The aim of this study was to develop a methodology to distinguish automotive paint samples based on the make of the vehicle and its color shade. In-situ analysis of 143 white samples was conducted using Fourier transform infrared spectroscopy and coupled microscopy. Principal component analysis and partial least squares discriminant analysis were used for data analysis, resulting in high classification accuracy.
Article
Food Science & Technology
Paola Scano
Summary: Infrared spectroscopy is widely used in the wine industry to analyze polyphenolic compounds. This study focused on the MIR spectral region of wine extracts from white and red wines, showing differences in polyphenolic evolution and characteristics. The integration of ATR-FTIR and UV-Vis spectroscopy data provided a more accurate characterization of the MIR fingerprint region for these wines.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2021)
Article
Spectroscopy
Mahsa Mohammadi, Mohammadreza Khanmohammadi Khorrami, Ali Vatani, Hossein Ghasemzadeh, Hamid Vatanparast, Alireza Bahramian, Afshin Fallah
Summary: A rapid quantitative determination method for SARA fractions of crude oil samples was proposed, utilizing ATR-FTIR spectroscopy coupled with chemometric methods. The GA-SVM-R model successfully predicted the SARA analysis of crude oil samples from different Iranian oil fields, showing superior performance compared to other models. This alternative approach is reliable for quantitative determination of SARA analysis in crude oil samples.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Medicine, Legal
Sweety Sharma, Rito Chophi, Charanjeet Kaur, Rajinder Singh
Summary: This study utilized ATR-FT-IR spectroscopy to analyze 20 red spray paints from different manufacturers nondestructively, showing successful differentiation of all samples. Poor spectra were obtained when analyzing spray paints on paper and fabric substrates, hindering comparative examinations, while significant peaks were observed on other substrates, allowing for comparative studies between neat spray paint and spray paint deposited on those substrates.
JOURNAL OF FORENSIC SCIENCES
(2021)
Article
Plant Sciences
Le Wang, Xiang Li, Yu Wang, Xueyang Ren, Xiaoyun Liu, Ying Dong, Jiamu Ma, Ruolan Song, Jing Wei, AXiang Yu, Qiqi Fan, Dongjie Shan, Jianling Yao, Gaimei She
Summary: This study successfully differentiated four different species of Yujin using different technologies and identified potential volatile markers. Through the application of various models and analysis methods, a 100% accuracy rate in discrimination was achieved.
JOURNAL OF ETHNOPHARMACOLOGY
(2021)
Article
Chemistry, Analytical
Ilaria Costantini, Kepa Castro, Maria Dolores Rodriguez-Laso, Juan Manuel Madariaga, Gorka Arana
Summary: The study analyzed decorative wallpapers from a historical palace in Oiartzun, Spain, dating back to the 19th century before restoration using various spectroscopic techniques. Lead chromate was identified as the most used pigment, mixed with other pigments and applied with animal glue. The presence of brass as a shiny decorative element and partial degradation of cellulose due to natural aging and wall humidity were also revealed in the analysis.