In situ attenuated total reflection-Fourier transform infrared (ATR-FTIR) spectroscopy combined with non-negative matrix factorization for investigating the synthesis reaction mechanism of 3-amino-4-amino-oxime furazan

2018 ◽  
Vol 10 (48) ◽  
pp. 5817-5822 ◽  
Author(s):  
Tianlong Zhang ◽  
Ting He ◽  
Chunhua Yan ◽  
Xinyu Gao ◽  
Junxiu Ma ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Reaction Mechanism ◽  
Ftir Spectroscopy ◽  
Matrix Factorization ◽  
Fourier Transform Infrared ◽  
Total Reflection ◽  
Attenuated Total Reflection ◽  
Synthesis Reaction ◽  
Non Negative Matrix Factorization

In situ ATR-FTIR combined with non-negative matrix factorization for investigating the synthesis reaction mechanism of 3-amino-4-aminoximefurazan.

scholarly journals An indirect analytical approach based on ATR-FTIR spectroscopy for determining the FFA content in vegetable oils

RSC Advances ◽  
2020 ◽  
Vol 10 (40) ◽  
pp. 24073-24078
Author(s):  
Yaoyao Dong ◽  
Shaoxia Shi ◽  
Qi Li ◽  
Lingyan Zhang ◽  
Xiuzhu Yu
Keyword(s):  
Fourier Transform ◽  
Fatty Acid ◽  
Free Fatty Acid ◽  
Ftir Spectroscopy ◽  
Vegetable Oils ◽  
Analytical Approach ◽  
Fourier Transform Infrared ◽  
Total Reflection ◽  
Attenuated Total Reflection ◽  
Novel Approach

In this study, we developed a novel approach for determining a free fatty acid (FFA) in vegetable oils using attenuated total reflection Fourier transform infrared (ATR-FTIR) spectroscopy.

scholarly journals Crystallinity of regenerated cellulose from [Bmim]Cl dependent on the hydrogen bond acidity/basicity of anti-solvents

RSC Advances ◽  
2017 ◽  
Vol 7 (65) ◽  
pp. 41004-41010 ◽  
Author(s):  
Zhaosheng Fan ◽  
Jianbo Chen ◽  
Wenji Guo ◽  
Fang Ma ◽  
Suqin Sun ◽  
...  
Keyword(s):  
Hydrogen Bond ◽  
Fourier Transform ◽  
Ftir Spectroscopy ◽  
Molecular Diffusion ◽  
Diffusion Processes ◽  
Total Reflection ◽  
Attenuated Total Reflection ◽  
Regenerated Cellulose ◽  
Hydrogen Bond Acidity

Attenuated total reflection Fourier transform infrared (ATR-FTIR) spectroscopy was used to monitor the molecular diffusion processes of four anti-solvents in situ.

scholarly journals Attenuated Total Reflection-Fourier Transform Infrared (ATR-FTIR) Spectroscopy Analysis of Saliva for Breast Cancer Diagnosis

2020 ◽  
Vol 2020 ◽  
pp. 1-11 ◽  
Author(s):  
Izabella C. C. Ferreira ◽  
Emília M. G. Aguiar ◽  
Alinne T. F. Silva ◽  
Letícia L. D. Santos ◽  
Léia Cardoso-Sousa ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Fourier Transform ◽  
Ftir Spectroscopy ◽  
Cancer Patients ◽  
Sensitivity And Specificity ◽  
Fourier Transform Infrared ◽  
Total Reflection ◽  
Attenuated Total Reflection ◽  
Breast Cancer Patients ◽  
Potential Use

Saliva biomarkers using reagent-free biophotonic technology have not been investigated as a strategy for early detection of breast cancer (BC). The attenuated total reflection-Fourier transform infrared (ATR-FTIR) spectroscopy has been proposed as a promising tool for disease diagnosis. However, its utilization in cancer is still incipient, and currently saliva has not been used for BC screening. We have applied ATR-FTIR onto saliva from patients with breast cancer, benign breast disease, and healthy matched controls to investigate its potential use in BC diagnosis. Several salivary vibrational modes have been identified in original and second-derivative spectra. The absorbance levels at wavenumber 1041 cm−1 were significantly higher (p<0.05) in saliva of breast cancer patients compared with those of benign patients, and the ROC curve analysis of this peak showed a reasonable accuracy to discriminate breast cancer from benign and control patients. The 1433–1302.9 cm−1 band area was significantly higher (p<0.05) in saliva of breast cancer patients than in control and benign patients. This salivary ATR-FTIR spectral area was prevalidated as a potential diagnostic biomarker of BC. This spectral biomarker was able to discriminate human BC from controls with sensitivity and specificity of 90% and 80%, respectively. Besides, it was able to differentiate BC from benign disease with sensitivity and specificity of 90% and 70%, respectively. Briefly, for the first time, saliva analysis by ATR-FTIR spectroscopy has demonstrated the potential use of salivary spectral biomarkers (1041 cm−1 and 1433–1302.9 cm−1) as a novel alternative for noninvasive BC diagnosis, which could be used for screening purposes.

scholarly journals Attenuated total reflection Fourier‐transform infrared ( ATR ‐ FTIR ) spectroscopy to diagnose osteoarthritis in equine serum

2019 ◽  
Vol 52 (1) ◽  
pp. 46-51 ◽  
Author(s):  
M. Paraskevaidi ◽  
P. D. Hook ◽  
C. L. M. Morais ◽  
J. R. Anderson ◽  
R. White ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Ftir Spectroscopy ◽  
Fourier Transform Infrared ◽  
Total Reflection ◽  
Attenuated Total Reflection
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