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Journal articles on the topic 'FTIR Spectra'

Author: Grafiati

Published: 7 September 2023

Last updated: 25 July 2025

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1

Cao, Zhen, Yongying Liu, and Jiancheng Zhao. "Efficient Discrimination of Some Moss Species by Fourier Transform Infrared Spectroscopy and Chemometrics." Journal of Spectroscopy 2014 (2014): 1–9. http://dx.doi.org/10.1155/2014/191796.

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Fourier transform infrared spectroscopy (FTIR) technique was used to classify 16 species from three moss families (Mielichhoferiaceae, Bryaceae, and Mniaceae). The FTIR spectra ranging from 4000 cm−1to 400 cm−1of the 16 species were obtained. To group the spectra according to their spectral similarity in a dendrogram, cluster analysis and principal component analysis (PCA) were performed. Cluster analysis combined with PCA was used to give a rough result of classification among the moss samples. However, some species belonging to the same genus exhibited very similar chemical components and si

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2

Tsutsumi, Tamao, Alok Shah, Lisa M. T. Lam, et al. "2125. Staphylococcus Species Identification by Fourier Transform Infrared (FTIR) Spectroscopic Techniques: A Cross-Lab Study." Open Forum Infectious Diseases 6, Supplement_2 (2019): S720. http://dx.doi.org/10.1093/ofid/ofz360.1805.

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Abstract Background Staphylococcus aureus is well known to be associated with atopic dermatitis. Recent studies also report S. aureus presence in lesional skin of squamous cell carcinoma (SCC) and its precursor lesion, actinic keratosis (AK). Therefore, it is of potential clinical interest to monitor skin S. aureus colonization on AK lesions. Fourier transform infrared (FTIR) spectroscopy is a cost-effective, nondestructive, and reagent-free technique for rapid microbial identification. It is based on the use of spectral databases developed with well-characterized strains in conjunction with t

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3

Greve, Tanja M., Kristine B. Andersen, and Ole F. Nielsen. "ATR-FTIR, FT-NIR and near-FT-Raman spectroscopic studies of molecular composition in human skinin vivoand pig ear skinin vitro." Spectroscopy 22, no. 6 (2008): 437–57. http://dx.doi.org/10.1155/2008/969217.

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ATR-FTIR, FT-NIR and near-FT-Raman spectroscopy were used to characterize the molecular composition of human skinin vivoand pig ear skinin vitro. Due to different measurement depths the spectroscopic techniques reveal the characteristics of different layers of the skin. Tape stripping was used with the ATR-FTIR technique. Spectral differences concerning lipid content and conformation, protein secondary structure or content of water were found with respect to both gender and species (i.e. human versus pig ear) at all measured skin depths. New assignments of so far unassigned lipid and protein p

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D., Gopinath, and Gunasekaran S. "The FTIR Spectra of Raw Magnesite and Sintered Magnesite." International Journal of Trend in Scientific Research and Development 2, no. 4 (2018): 1072–76. https://doi.org/10.31142/ijtsrd14224.

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Magnesite is a magnesium carbonate mineral because of its thermal stability and inertness. All the three grades of magnesite both in raw and sintered forms have vast applications. The FTIR spectra of raw magnesite and sintered magnesite samples have been recorded in the mid infrared region of 4000 450 cm 1. In general, vibrational spectroscopy detections can qualitatively and quantitatively distinguish the spectral assignment of specific bands between corresponding bonds and functional groups, as also the observation of spectral profiles can be used to define and differentiate the magnesite Th

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Pouchaname, V., R. Madivanane, and A. Tinabaye. "FTIR, FTR Spectral Analysis and DFT Calculations of 1, 8-Dimethyl Naphthalene." Advanced Materials Research 584 (October 2012): 371–75. http://dx.doi.org/10.4028/www.scientific.net/amr.584.371.

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ABSTRACT. Solid phase FTIR and FT-Raman spectra of 1, 8-dimethylnaphthalene have been recorded in the region 3700-50 cm-1. The spectra were interpreted with aid of normal coordinate analysis based on DFT using standard B3LYP/6-31G basis sets. After scaling there is good agreement between observed and calculated frequencies. Comparison of the simulated spectra with the experimental spectra provides important information about the ability of the computational method to describe the vibrational modes.

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KIRKWOOD, JONAH, ANDREW GHETLER, JACQUELINE SEDMAN, et al. "Differentiation of Group I and Group II Strains of Clostridium botulinum by Focal Plane Array Fourier Transform Infrared Spectroscopy." Journal of Food Protection 69, no. 10 (2006): 2377–83. http://dx.doi.org/10.4315/0362-028x-69.10.2377.

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A method was developed for whole-organism fingerprinting of Clostridium botulinum isolates by focal plane array Fourier transform infrared (FPA-FTIR) spectroscopy. A database of 150,000 infrared spectra of 44 strains of C. botulinum was acquired using a FPA-FTIR imaging spectrometer equipped with a 16 × 16 array detector to evaluate the ability of FTIR spectroscopy to differentiate the 44 strains. The database contained strains from C. botulinum groups I and II producing botulinum neurotoxin of serotypes A, B, E, and F. All strains were grown on each of three agar media (brain heart infusion,

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7

Lasalvia, Maria, Vito Capozzi, and Giuseppe Perna. "Discrimination of Different Breast Cell Lines on Glass Substrate by Means of Fourier Transform Infrared Spectroscopy." Sensors 21, no. 21 (2021): 6992. http://dx.doi.org/10.3390/s21216992.

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Fourier transform infrared (FTIR) micro-spectroscopy has been attracting the interest of many cytologists and histopathologists for several years. This is related to the possibility of FTIR translation in the clinical diagnostic field. In fact, FTIR spectra are able to detect changes in biochemical cellular components occurring when the cells pass to a pathological state. Recently, this interest has increased because it has been shown that FTIR spectra carried out just in the high wavenumber spectral range (2500–4000 cm−1), where information mainly relating to lipids and proteins can be obtain

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8

Riyanta, A. B., S. Riyanto, E. Lukitaningsih, and Abdul Rohman. "The employment of Fourier Transform Infrared Spectroscopy (FTIR) and chemometrics for analysis of candlenut oil in binary mixture with grape seed oil." Food Research 4, no. 1 (2019): 184–90. http://dx.doi.org/10.26656/fr.2017.4(1).279.

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Candlenut oil (CDO) is the target of adulteration with other plant oils to get economical profits, therefore, reliable analytical techniques should be developed. Based on the principal component analysis (PCA), grape seed oil (GSO) has the close similarity with CDO. Therefore, this study was intended to make modelling in the authentication analysis of CDO from GSO using Fourier transformed infrared (FTIR) spectroscopy in combination with chemometrics of partial least square calibration (PLSR) and discriminant analysis (DA). FTIR spectra of CDO, GSO and its binary mixtures were subjected to FTI

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9

Ilchenko, Oleksii O., Andrii M. Kutsyk, and Vyacheslav V. Obukhovsky. "Study of Complexation in Acetone-Chloroform Mixtures by Infrared Spectroscopy." Journal of Atomic and Molecular Physics 2014 (February 24, 2014): 1–6. http://dx.doi.org/10.1155/2014/106178.

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FTIR spectra of acetone-chloroform system with various component ratios were investigated within the spectral range 3950–4550 cm−1. Methods of multivariate curve resolution were applied to decompose the FTIR spectra into specific components of different composition. A method of decomposition based on structural model of solution which contains acetone, chloroform, and complex acetone/chloroform (1 : 1) was proposed. Results of both approaches are in good agreement within the range of measuring error.

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10

Huleihel, Mahmoud, Marina Talyshinsky, and Vitaly Erukhimovitch. "FTIR microscopy as a method for detection of retrovirally transformed cells." Spectroscopy 15, no. 2 (2001): 57–64. http://dx.doi.org/10.1155/2001/256362.

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Fourier transform infrared (FTIR) spectroscopy is a unique technique that has potential for the optical diagnosis of cellular variations based on the characteristic molecular vibrational spectra of the cells. In the present study, a refinement of this technique − FTIR microscopy − was used in a mouse model to investigate spectral differences between primary cells and malignant cells transformed by murine sarcoma virus (MuSV). The advantage of FTIR microscopy is that it facilitates inspection of a restricted region of cell growth on a slide. A significant decrease in the intensities of the spec

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Irnawati, R. N. Putri, L. A. Lestari, and A. Rohman. "Quantitative analysis and discrimination of lard in chicken fat using FTIR spectroscopy and chemometrics for halal authentication." Food Research 6, no. 4 (2022): 211–17. http://dx.doi.org/10.26656/fr.2017.6(4).459.

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Lard (LD) has a similarity with chicken fat (CF) in terms of physicochemical characteristics especially fatty acid composition and FTIR spectra, therefore, analysis of lard in a binary mixture with CF is challenging. This study aimed to employ FTIR spectra in normal and derivative modes in combination with multivariate calibrations for quantitative analysis of LD and CF in the binary mixture and to discriminate pure LD and LD in the mixture with CF using discriminant analysis (DA). LD and CF were prepared randomly at a certain concentration to be used as calibration and validation sets, respec

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Prabowo, Sulistyo, Muflihah ., and Abdul Rohman. "MONITORING OXIDATIVE LEVELS OF FRYING OILS USING FTIR SPECTROSCOPY AND MULTIVARIATE CALIBRATION." International Journal of Applied Pharmaceutics 10, no. 6 (2018): 82. http://dx.doi.org/10.22159/ijap.2018v10i6.29716.

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Objective: To develop a rapid reliable technique based on Fourier transform infrared-attenuated total reflectance (FTIR-ATR) spectroscopy in combination with multivariate calibrations for prediction of frying oil quality, namely acid value (AV), iodine value (IV) and peroxide value (PV).Methods: FTIR spectra were directly obtained and subjected to optimization and spectral treatments including a selection of wavenumbers region and spectral derivatization. The condition selected was based on its capability to provide the highest coefficient of determination (R2) and the lowest root mean square

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13

Baran, J., N. A. Davydova, M. Drozd, and V. Ya Reznichenko. "Spectroscopic studies of conformational polymorphism in 4-methylphenol." Low Temperature Physics 51, no. 2 (2025): 162–65. https://doi.org/10.1063/10.0034897.

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In this work, conformational polymorphism in 4-methylphenol has been studied using a Fourier-transform infrared (FTIR) spectroscopy. The first time we have received the FTIR spectra of the stable and two metastable phases of 4-methylphenol and their temperature dependencies at temperatures from 300 to 12 K in the spectral region of the methyl group (CH3) deformation vibrations. Analysis of the FTIR spectra showed that there are significant differences in the position and shape of the bands related to the deformation bending β(CH3) and rocking ω(CH3) vibrations when passing from one polymorph t

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14

Dziuba, B. "Identification of Propionibacteria to the species level using Fourier transform infrared spectroscopy and artificial neural networks." Polish Journal of Veterinary Sciences 16, no. 2 (2013): 351–57. http://dx.doi.org/10.2478/pjvs-2013-0047.

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Abstract Fourier transform infrared spectroscopy (FTIR) and artificial neural networks (ANN’s) were used to identify species of Propionibacteria strains. The aim of the study was to improve the methodology to identify species of Propionibacteria strains, in which the differentiation index D, calculated based on Pearson’s correlation and cluster analyses were used to describe the correlation between the Fourier transform infrared spectra and bacteria as molecular systems brought unsatisfactory results. More advanced statistical methods of identification of the FTIR spectra with application of a

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Barrera-Patiño, Claudia P., Jennifer M. Soares, Kate C. Branco, Natalia M. Inada, and Vanderlei Salvador Bagnato. "Spectroscopic Identification of Bacteria Resistance to Antibiotics by Means of Absorption of Specific Biochemical Groups and Special Machine Learning Algorithm." Antibiotics 12, no. 10 (2023): 1502. http://dx.doi.org/10.3390/antibiotics12101502.

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FTIR (Fourier transform infrared spectroscopy) is one analytical technique of the absorption of infrared radiation. FTIR can also be used as a tool to characterize profiles of biomolecules in bacterial cells, which can be useful in differentiating different bacteria. Considering that different bacterial species have different molecular compositions, it will then result in unique FTIR spectra for each species and even bacterial strains. Having this important tool, here, we have developed a methodology aimed at refining the analysis and classification of the FTIR absorption spectra obtained from

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Tkachenko, Yana, and Przemysław Niedzielski. "FTIR as a Method for Qualitative Assessment of Solid Samples in Geochemical Research: A Review." Molecules 27, no. 24 (2022): 8846. http://dx.doi.org/10.3390/molecules27248846.

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This study aims to collect information about soil investigation by FTIR. As we know, the FTIR technique is most often used in organic and bioorganic chemistry, while in geochemistry FTIR spectroscopy is not used very often. Therefore, there is a problem with the identification and interpretation of the IR spectra of minerals contained in sediments and soils. The reason for this is a deficiency of data about characteristic wavenumbers for minerals. Therefore, this study reviews and sums up, in one place, published articles that are connected to an investigation of minerals from 2002 to 2021 (ba

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17

Pilling, Michael J., Paul Bassan, and Peter Gardner. "Comparison of transmission and transflectance mode FTIR imaging of biological tissue." Analyst 140, no. 7 (2015): 2383–92. http://dx.doi.org/10.1039/c4an01975j.

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18

Araújo, Rúben, Luís Ramalhete, Edna Ribeiro, and Cecília Calado. "Plasma versus Serum Analysis by FTIR Spectroscopy to Capture the Human Physiological State." BioTech 11, no. 4 (2022): 56. http://dx.doi.org/10.3390/biotech11040056.

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Fourier Transform InfraRed spectroscopy of serum and plasma has been highly explored for medical diagnosis, due to its general simplicity, and high sensitivity and specificity. To evaluate the plasma and serum molecular fingerprint, as obtained by FTIR spectroscopy, to acquire the system metabolic state, serum and plasma spectra were compared to characterize the metabolic state of 30 human volunteers, between 90 days consumption of green tea extract rich in Epigallocatechin-3-gallate (EGCG). Both plasma and serum spectra enabled the high impact of EGCG consumption on the biofluid spectra to be

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19

Gopinath, D., and S. Gunasekaran. "The FTIR Spectra of Raw Magnesite and Sintered Magnesite." International Journal of Trend in Scientific Research and Development Volume-2, Issue-4 (2018): 1072–76. http://dx.doi.org/10.31142/ijtsrd14224.

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20

Osman, Salma O. M., Abu Sefyan I. Saad, Shota Tadano, et al. "Probing Differential Metabolome Responses among Wheat Genotypes to Heat Stress Using Fourier Transform Infrared-Based Chemical Fingerprinting." Agriculture 12, no. 6 (2022): 753. http://dx.doi.org/10.3390/agriculture12060753.

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Heat stress is one of the major environmental constraints for wheat production; thus, a comprehensive understanding of the metabolomic responses of wheat is required for breeding heat-tolerant varieties. In this study, the metabolome responses of heat-tolerant genotypes Imam and Norin 61, and susceptible genotype Chinese Spring were comparatively analyzed using Fourier transform infrared (FTIR) spectroscopy in combination with chemometric data mining techniques. Principal component analysis of the FTIR data suggested a spectral feature partially overlapping between the three genotypes. FTIR sp

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TAKANAKA, Tohru. "FTIR spectra of langmuir-blodgett films." Journal of the Spectroscopical Society of Japan 35, no. 4 (1986): 323–25. http://dx.doi.org/10.5111/bunkou.35.323.

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22

Quickenden, T. I., and M. J. Comarmond. "FTIR Spectra of Thionine‐Modified Electrodes." Journal of The Electrochemical Society 135, no. 4 (1988): 918–20. http://dx.doi.org/10.1149/1.2095833.

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23

Ramis, Gianguido, and Guido Busca. "FTIR spectra of adsorbed n-butylamine." Journal of Molecular Structure 193 (February 1989): 93–100. http://dx.doi.org/10.1016/0022-2860(89)80124-3.

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24

Friesen, W. I., and K. H. Michaelian. "Fourier deconvolution of photoacoustic FTIR spectra." Infrared Physics 26, no. 4 (1986): 235–42. http://dx.doi.org/10.1016/0020-0891(86)90075-8.

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25

Missailidis, S., and R. E. Hester. "FTIR spectra of deoxyoligonucleotide-nogalamycin complexes." Biospectroscopy 1, no. 2 (1995): 91–99. http://dx.doi.org/10.1002/bspy.350010202.

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26

Lin, Cheng-Hsien, Richard H. Grant, Albert J. Heber, and Cliff T. Johnston. "Application of open-path Fourier transform infrared spectroscopy (OP-FTIR) to measure greenhouse gas concentrations from agricultural fields." Atmospheric Measurement Techniques 12, no. 6 (2019): 3403–15. http://dx.doi.org/10.5194/amt-12-3403-2019.

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Abstract. Open-path Fourier transform infrared spectroscopy (OP-FTIR) has often been used to measure hazardous or trace gases from hot point sources (e.g. volcano, industrial, or agricultural facilities) but seldom used to measure greenhouse gases (GHGs) from field-scale sources (e.g. agricultural soils). Closed-path mid-IR laser-based N2O, nondispersive-IR CO2 analysers, and OP-FTIR were used to measure concentrations of N2O and CO2 at a maize cropping system during 9–19 June 2014. To measure N2O and CO2 concentrations accurately, we developed a quantitative method of N2O∕CO2 analysis that mi

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Sarvjeet Dubey, Raghvendra, and Sigamani Saravanan. "OPTICAL STUDY OF SOL-GEL SPIN-COATING TiO2/Si3N4 MULTILAYERS ON GLASS SUBSTRATES." RASAYAN Journal of Chemistry 15, no. 04 (2022): 2304–9. http://dx.doi.org/10.31788/rjc.2022.1547077.

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In this work, we have adopted a sol-gel spin-coating technique and prepared alternative TiO2/Si3N4 multilayers on glass substrates. These alternating layers of TiO2/Si3N4 thin film samples were calcinated at two different temperatures and studied for their optical performance. The optical properties of fabricated thin films were investigated by UV-Visible spectrophotometer, X-ray diffractometer (XRD), Fourier transform infrared (FTIR), and Raman spectroscopy. UV-visible spectra showed broader and higher optical reflectance in the visible spectral region. FTIR transmission spectra show Ti-O-Ti

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Vazquez-Zapien, Gustavo Jesus, Monica Maribel Mata-Miranda, Virginia Sanchez-Monroy, Raul Jacobo Delgado-Macuil, David Guillermo Perez-Ishiwara, and Marlon Rojas-Lopez. "FTIR Spectroscopic and Molecular Analysis during Differentiation of Pluripotent Stem Cells to Pancreatic Cells." Stem Cells International 2016 (2016): 1–10. http://dx.doi.org/10.1155/2016/6709714.

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Some of the greatest challenges in stem cells (SCs) biology and regenerative medicine are differentiation control of SCs and ensuring the purity of differentiated cells. In this work, we differentiated mouse pluripotent stem cells (mPSCs) toward pancreatic cells characterizing this differentiation process by molecular and spectroscopic technics. Both mPSCs and Differentiated Pancreatic Cells (DPCs) were subjected to a genetic, phenotypic, and biochemical analysis by real-time quantitative PCR (RT-qPCR), immunocytochemistry, and Fourier Transform Infrared (FTIR) spectroscopy. Cultured mPCSs exp

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Lam, Lisa M. T., Ashraf Ismail, Jacqueline Sedman, and Émilie Vallières. "2167. Evaluation of Attenuated Total Reflectance Fourier Transform Infrared Spectroscopy for Rapid and Reagent-Free Identification of Burkholderia spp." Open Forum Infectious Diseases 6, Supplement_2 (2019): S735. http://dx.doi.org/10.1093/ofid/ofz360.1847.

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Abstract Background Burkholderia cepacia complex including B. gladioli are opportunistic pathogenic bacteria affecting the immunocompromised population. For prognosis and appropriate treatment, rapid and accurate species identification is particularly important for those diagnosed with cystic fibrosis (CF). Conventional biochemical identification techniques are insensitive and problematic for identifying Burkholderia spp., leading to common misidentification or inconclusive results. Recent studies have successfully employed attenuated total reflectance-Fourier transform infrared (ATR-FTIR) spe

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Yuan, Jing, Maoping Ran, Xinxing Zhou, et al. "The Impact of Heterogeneity of Aggregates Coated with Asphalt Mortar on Their FTIR Spectra and Spectral Reproducibility." Applied Sciences 14, no. 13 (2024): 5857. http://dx.doi.org/10.3390/app14135857.

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Since FTIR is a sensitive micro-region measurement method, research on the impact of the heterogeneity of both aggregates and asphalt mortar is meaningful and comprehensive for accurate measurement with FTIR spectroscopy. In this paper, the impact of the heterogeneity of aggregates coated with asphalt mortar on their FTIR spectra and spectral reproducibility was creatively studied. The comparative analysis of the respective absorption peaks indicated that the characteristic absorption peaks of the aggregate coated with asphalt mortar were the superposition of the respective absorption peaks of

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Pasieczna-Patkowska, Sylwia, Marcin Cichy, and Jolanta Flieger. "Application of Fourier Transform Infrared (FTIR) Spectroscopy in Characterization of Green Synthesized Nanoparticles." Molecules 30, no. 3 (2025): 684. https://doi.org/10.3390/molecules30030684.

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The fundamental principle of Fourier Transform Infrared (FTIR) spectroscopy is based on the vibration and rotation of atoms, and it has become a universal and widely used spectral methodology for the detection of internal molecular structures in a diverse range of fields. A considerable number of review articles pertaining to the applications of FTIR spectroscopy have been published in recent years. Nevertheless, a comprehensive summary of the application of FTIR spectroscopy in nanoparticles’ (NPs’) green synthesis has yet to be presented. In the present paper, we propose a series of case stu

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Rahman, Ubaid ur, Amna Sahar, Imran Pasha, Sajjad ur Rahman, and Anum Ishaq. "Assessing the capability of Fourier transform infrared spectroscopy in tandem with chemometric analysis for predicting poultry meat spoilage." PeerJ 6 (August 6, 2018): e5376. http://dx.doi.org/10.7717/peerj.5376.

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Background Use of traditional methods for determining meat spoilage is quite laborious and time consuming. Therefore, alternative approaches are needed that can predict the spoilage of meat in a rapid, non-invasive and more elaborative way. In this regard, the spectroscopic techniques have shown their potential for predicting the microbial spoilage of meat-based products. Consequently, the present work was aimed to demonstrate the competence of Fourier transform infrared spectroscopy (FTIR) to detect spoilage in chicken fillets stored under aerobic refrigerated conditions. Methods This study w

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Ibrahim, Amr, Adriana Predoi-Cross, and Chad Povey. "Handling techniques for channel spectra in synchrotron-based Fourier transform spectra." Canadian Journal of Physics 91, no. 11 (2013): 910–23. http://dx.doi.org/10.1139/cjp-2013-0050.

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Recently, the high radiance of synchrotron sources has been used to enhance FTIR spectrometer performance. However, excessive channel spectra when synchrotron sources are used degrade the quality of retrieved spectral parameters. We have investigated seven different techniques for handling channel spectra. These techniques were used to reduce channel spectra for a test group of seven samples of CO2 mixed with air recorded using the synchrotron source at the Canadian Light Source. The increases in signal to noise ratio (SNR) of spectra handled with each technique were calculated. SNR results sh

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B, Latha, Gunasekaran S, and R. Ramkumaar G. "SPECTROSCOPIC AND QUANTUM CHEMICAL ANALYSIS ON THE STRUCTURE OF TELMISARTAN." Journal of Biomechanical Science and Engineering September, Theme 1 (2023): 42–51. https://doi.org/10.5281/zenodo.8397995.

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<strong>Abstract</strong> Telmisartan is an angiotensin II receptor blocker used in the therapy of hypertension.   The spectral properties of Telmisartan were investigated using FTIR, FT–Raman techniques.  The structure of the molecule was optimized and structural properties were determined using Quantum chemical methods using B3LYP/6-31G(d,p) and B3LYP/6-311G(d,p) as basis sets.  The theoretical wavenumbers are compared with experimental FTIR and FT-Raman spectra.  The electronic properties were also calculated and interpreted using UV-Vis and HOMO-LUM

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Chen, Cong Jin, Jian Ju Luo, Xiu Ping Huang, and Shu Kai Zhao. "Analysis on Cellulose Crystalline and FTIR Spectra of Artocarpus heterophyllus Lam Wood and Its Main Chemical Compositions." Advanced Materials Research 236-238 (May 2011): 369–75. http://dx.doi.org/10.4028/www.scientific.net/amr.236-238.369.

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Cellulose crystalline and FTIR spectra ofArtocarpus heterophyllusLam wood and its main chemical compositions were analyzed.The result showed that the FTIR spectra of original wood samples fromArtocarpus heterophyllusLam wood present the same basic structure of all wood samples, the FTIR spectra of extracted wood samples were compared with the original wood sample, some of their absorption peaks of the band shifted to long or short wave, the wood and the solvent had little chemical reaction in the extracting process. FTIR spectra crystalline index of nitric acid-ethanol cellulose fromArtocarpus

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Amarie, Sergiu, Paul Zaslansky, Yusuke Kajihara, Erika Griesshaber, Wolfgang W. Schmahl, and Fritz Keilmann. "Nano-FTIR chemical mapping of minerals in biological materials." Beilstein Journal of Nanotechnology 3 (April 5, 2012): 312–23. http://dx.doi.org/10.3762/bjnano.3.35.

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Methods for imaging of nanocomposites based on X-ray, electron, tunneling or force microscopy provide information about the shapes of nanoparticles; however, all of these methods fail on chemical recognition. Neither do they allow local identification of mineral type. We demonstrate that infrared near-field microscopy solves these requirements at 20 nm spatial resolution, highlighting, in its first application to natural nanostructures, the mineral particles in shell and bone. "Nano-FTIR" spectral images result from Fourier-transform infrared (FTIR) spectroscopy combined with scattering scanni

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Perna, Giuseppe, Vito Capozzi, and Maria Lasalvia. "Classification of Healthy and Cancer Colon Cells Grown on Glass Coverslip by Means of Fourier Transform Infrared Spectroscopy and Multivariate Methods." Photonics 10, no. 4 (2023): 481. http://dx.doi.org/10.3390/photonics10040481.

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For several years, Fourier transform infrared (FTIR) microspectroscopy has been proving to be very promising for use in cytological diagnostics because of its capability of providing rapid and label-free biochemical information about cell samples. The adoption of FTIR as a clinical tool has been slowed because of the poor compatibility with cells deposited on glass slides, commonly used in clinical practice, because of the absorption of IR radiation by glassy materials in the 1000–1800 cm−1 spectral range. However, the possibility of also obtaining diagnostic information from the IR absorption

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Ju, Wei, Changhua Lu, Chun Liu, Weiwei Jiang, Yujun Zhang, and Feng Hong. "Rapid Identification of Atmospheric Gaseous Pollutants Using Fourier-Transform Infrared Spectroscopy Combined with Independent Component Analysis." Journal of Spectroscopy 2020 (January 22, 2020): 1–14. http://dx.doi.org/10.1155/2020/8920732.

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Fourier-transform infrared (FTIR) spectroscopy is a rapid and nondestructive technology for monitoring atmospheric quality. The identification of each component from the FTIR spectra is a prerequisite for the accurate quantitative analysis of gaseous pollutants. Due to the overlap of different gas absorption peaks and the interference of water vapor in the actual measurement, the existing identification methods of gas spectra have drawbacks of low identification rate and the inability to carry out real-time online analysis in atmospheric quality monitoring. In this work, independent component

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Ketan, Dodiya, Agravat Sagar, and A.T.Oza. "FTIR Spectra of Ni H dmg 2 Hydrogen Bonded With Six Dyes." International Journal of Trend in Scientific Research and Development 1, no. 2 (2017): 14–22. https://doi.org/10.31142/ijtsrd63.

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Here the one dimensional semiconductor namely bis dimethyiglyoximato Ni is hydrogen bonded with 6 highly polarizable dyes which are Para red, Congo red, Direct red, Bismark brown, Evans blue and Trypan blue. The hydrogen bonding was verified with FTIR spectroscopy. FTIR specra also reveal modification of absorption edges by exciton phonon coupling there are threshold energies for the formation of free excitons and electron hole pairs with phonon emissions in the intrinsic absorption edge spectrum. The remainder absorption at the value of the band gap is proportional to the exciton ionization e

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Magazù, S., E. Calabrò, and M. T. Caccamo. "Experimental Study of Thermal Restraint in Bio-Protectant Disaccharides by FTIR Spectroscopy." Open Biotechnology Journal 12, no. 1 (2018): 123–33. http://dx.doi.org/10.2174/1874070701812010123.

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Background: In the present paper, InfraRed (IR) spectra on water mixtures of two homologous disaccharides, i.e. sucrose and trehalose, as a function of temperature have been collected. Methods: In particular, IR spectra were registered, in the spectral range from 4000 cm-1 to 400 cm-1, to investigate the thermal response of the water mixtures of two homologous disaccharides, through positive thermal scans, i.e. by increasing the temperature from the value of 25°C to the value of 50°C. The OH-stretching region has been analyzed by means of two simple and straightforward procedures, i.e. by eval

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Pereira, Thiago Martini, Maria Lucia Zaidan Dagli, Grégory Mennecier, and Denise Maria Zezell. "Influence of Fixation Products Used in the Histological Processing in the FTIR Spectra of Lung Cells." Spectroscopy: An International Journal 27 (2012): 399–402. http://dx.doi.org/10.1155/2012/649094.

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The aim of the present study is to evaluate the differences on FTIR spectra of the normal lung cell (noncancerous mice lung epithelial cell line e10) due to different fixation protocols for histological processing. The results shown that formalin and methacarn (normally used in fixation) did cause many changes on the FTIR spectra of mice lung cells e10, mainly in the organic compounds (800–1800 cm−1) in lipids, DNA, and proteins, and the alcohol 70% fixation protocol caused almost no changes on the FTIR spectra compared to unfixed cells spectra (in PBS). It can be concluded that histological p

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Boddolla, Sathish, and D. Ravinder. "Eu3+ Doped CoFe2O4 Nanoparticles with XRD and FTIR Analysis." Journal for Research in Applied Sciences and Biotechnology 3, no. 2 (2024): 135–38. http://dx.doi.org/10.55544/jrasb.3.2.23.

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Pure and Eu3+ doped cobalt ferrite nanoparticles with the formula CoEuxFe2-xO4(x = 0.00,0.10) were synthesized by citrate gel auto combustion method. X-ray diffraction analysis validated both the phase formation and purity of the synthesized nanoparticles. The Fourier-transform infrared (FTIR) spectra of the sample were meticulously recorded within the spectral range of 200-1000 cm^-1. This analysis provided insights into the formation of the spinel structure.

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Chaber, Radosław, Christopher Arthur, Kornelia Łach, et al. "Predicting Ewing Sarcoma Treatment Outcome Using Infrared Spectroscopy and Machine Learning." Molecules 24, no. 6 (2019): 1075. http://dx.doi.org/10.3390/molecules24061075.

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Background: Improved outcome prediction is vital for the delivery of risk-adjusted, appropriate and effective care to paediatric patients with Ewing sarcoma—the second most common paediatric malignant bone tumour. Fourier transform infrared (FTIR) spectroscopy of tissues allows the bulk biochemical content of a biological sample to be probed and makes possible the study and diagnosis of disease. Methods: In this retrospective study, FTIR spectra of sections of biopsy-obtained bone tissue were recorded. Twenty-seven patients (between 5 and 20 years of age) with newly diagnosed Ewing sarcoma of

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Dr, Ritu Tomar* Dr Chandrashekhar Bendigeri Dr Sandeep Kumar Tomar. "FABRICATION AND FOURIER TRANSFORM INFRARED SPECTROSCOPY STUDIES ON PVP BASED POLYMER NANOCOMPOSITES." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 5, no. 9 (2016): 481–93. https://doi.org/10.5281/zenodo.154246.

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A nano composite is a multi phase solid material where one of the phases has dimensions of less than 100 nano meters. Nano composites have different properties for specific applications. In this work PVP based polymer nano composite has been prepared by using nano materials such as Aluminium Oxide, Aluminium Nitride, Nickel Oxide, Barium Titanate and Zinc Oxide. FTIR Spectroscopy has been used in the present work to assessing purity of polymer nano composite fabricated by solution cast technique FTIR Spectra of various composition of polymer nanocomposite has been determined and discussed in d

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Wang, Rong, Aparna Naidu, and Yong Wang. "Oral Cancer Discrimination and Novel Oral Epithelial Dysplasia Stratification Using FTIR Imaging and Machine Learning." Diagnostics 11, no. 11 (2021): 2133. http://dx.doi.org/10.3390/diagnostics11112133.

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The Fourier transform infrared (FTIR) imaging technique was used in a transmission model for the evaluation of twelve oral hyperkeratosis (HK), eleven oral epithelial dysplasia (OED), and eleven oral squamous cell carcinoma (OSCC) biopsy samples in the fingerprint region of 1800–950 cm−1. A series of 100 µm × 100 µm FTIR imaging areas were defined in each sample section in reference to the hematoxylin and eosin staining image of an adjacent section of the same sample. After outlier removal, signal preprocessing, and cluster analysis, a representative spectrum was generated for only the epithel

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Younis, Uzma, Ashfaq Ahmad Rahi, Subhan Danish, et al. "Fourier Transform Infrared Spectroscopy vibrational bands study of Spinacia oleracea and Trigonella corniculata under biochar amendment in naturally contaminated soil." PLOS ONE 16, no. 6 (2021): e0253390. http://dx.doi.org/10.1371/journal.pone.0253390.

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Fourier transform infrared spectroscopy (FTIR) spectroscopy detects functional groups such as vibrational bands like N-H, O-H, C-H, C = O (ester, amine, ketone, aldehyde), C = C, C = N (vibrational modes of a tetrapyrrole ring) and simply C = N. The FTIR of these bands is fundamental to the investigation of the effect of biochar (BC) treatment on structural changes in the chlorophyll molecules of both plants that were tested. For this, dried leaf of Spinacia oleracia (spinach) and Trigonella corniculata (fenugreek) were selected for FTIR spectral study of chlorophyll associated functional grou

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Buoso, Maria Crista, Mario De Poli, Peter Matthaes, Luca Silvestrin, and Demetre Zafiropoulos. "Nondestructive wood discrimination: FTIR – Fourier Transform Infrared Spectroscopy in the characterization of different wood species used for artistic objects." International Journal of Modern Physics: Conference Series 44 (January 2016): 1660212. http://dx.doi.org/10.1142/s201019451660212x.

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Wooden artifacts represent a significant component of past cultures. Successful conservation of wooden artifacts depends on the knowledge of wood structure and types. It is critical that conservators know the category of wood that they are treating in order to successfully conserve it. Recently, vibrational spectroscopy has been successfully applied to determine the chemical structure of wood and to characterize wood types. FTIR (Fourier Transform Infrared) is a useful nondestructive or micro-destructive analytical technique providing information about chemical bonding and molecular structure.

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Quispe, Max, Jesús D. Trigo, Luis Serrano-Arriezu, Jorge Huere, Edgar Quispe, and Miguel Beruete. "Classification of South American Camelid and goat fiber samples based on fourier transform infrared spectroscopy and machine learning." Journal of The Textile Institute 116, no. 2 (2025): 198–207. https://doi.org/10.1080/00405000.2024.2324209.

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Some animal fibers are considerably cheaper than others. Hence the existence of counterfeit products, which are detrimental to legitimate producers and consumers alike. Fourier-Transform Infrared (FTIR) spectroscopy can extract a characteristic waveform from fibers that can be later used for classification. However, visually inspecting such waveforms is imprecise. Previous research has complemented FTIR with other mathematical or physical methods to improve accuracy. In parallel, Artificial Intelligence (AI) is an emerging field that could be helpful in this domain. The objective of this work

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Tandel, Vanish H., I. B. Patel, S. A. Suthar, and A. M. Shah. "Influence studies of doping on FTIR Spectra and Thermogravimetric Analysis of Barium Nitrate Crystals." Material Science Research India 15, no. 1 (2018): 83–90. http://dx.doi.org/10.13005/msri/150110.

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Pure and Magnesium Nitrate hexahydrate (MgN) doped Barium Nitrate (BaN) crystals were grown by slow evaporation technique. FTIR spectral studies have been carried to identify the presence various functional groups. An FTIR spectrum of grown crystals confirms the presence of ionic bonds in the structure of pure and doped BaN crystals. The influence of MgN doping on FTIR spectra was absorbing frequencies by pure and doped BaN crystals were studied. Thermogravimetric of pure and doped BaN crystals were analysed to characterise thermal stability. Thermal parameters are evaluated using thermogram.

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Wilcox, C. F., and S. H. Bauer. "The FTIR spectra of CH3CH2Br and CD3CH2Br." Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 52, no. 2 (1996): 207–12. http://dx.doi.org/10.1016/0584-8539(95)01546-9.

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