Search results for "FTIR"

showing 6 items of 146 documents

Data set: Towards a rapid screening of liver grafts at the operating room using mid-infrared spectroscopy

2020

The estimation of steatosis in a liver graft is mandatory prior to liver transplantation, as the risk of graft failure increases with the level of infiltrated fat. However, the assessment of liver steatosis before transplantation is typically based on a qualitative or semi-quantitative characterization by visual inspection and palpation, and histological analysis. Thus, there is an unmet need for transplantation surgeons to have access to a diagnostic tool enabling an in situ fast classification of grafts prior extraction. In this study, we have assessed an Attenuated Total Reflection-Fourier Transform Infrared (ATR-FTIR) spectroscopic method compatible with the requirements of an operation…

stomatognathic systemliquid chromatography – mass spectrometrysteatosislipidomicsliverinfrared spectroscopy3. Good healthATR-FTIR
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Data set: Towards a rapid screening of liver grafts at the operating room using mid-infrared spectroscopy

2020

The estimation of steatosis in a liver graft is mandatory prior to liver transplantation, as the risk of graft failure increases with the level of infiltrated fat. However, the assessment of liver steatosis before transplantation is typically based on a qualitative or semi-quantitative characterization by visual inspection and palpation, and histological analysis. Thus, there is an unmet need for transplantation surgeons to have access to a diagnostic tool enabling an in situ fast classification of grafts prior extraction. In this study, we have assessed an Attenuated Total Reflection-Fourier Transform Infrared (ATR-FTIR) spectroscopic method compatible with the requirements of an operation…

stomatognathic systemliquid chromatography – mass spectrometrysteatosislipidomicsliverinfrared spectroscopyATR-FTIR
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MbCO↔matrix reciprocal effects in low hydration amorphous saccharide systems: a FTIR study

2009

trehalose carboxymyoglobin FTIR bioprotection
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SAXS and FTIR study on MbCO-Saccharide amorphous systems

2009

trehalose carboxymyoglobin SAXS FTIR bioprotection
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FTIR Study on Reciprocal Protein↔Matrix effects in dry amorphous saccharide systems

2009

trehalose saccharide carboxymyoglobin FTIR biopreservation
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Conformational investigation of alpha,beta-dehydropeptides. IX. N-Acetyl-(E)-alpha,beta-methylamide: stereoelectronic properties from infrared and th…

1998

The Fourier transform infrared spectra of Ac-(E)-deltaAbu-NHMe were analyzed to determine the predominant solution conformation(s) of this (E)-alpha,beta-dehydropeptide-related compound and the electron density perturbation in its amide groups. The measurements were performed in dichloromethane and acetonitrile in the region of mode vs (N-H), amide I, amide II and vs (C(alpha)=Cbeta). The equilibrium geometrical parameters, calculated by a method based on the density functional theory with the B3LYP functional and the 6-31G* basis set, were used to support spectroscopic interpretation and gain some deeper insight into the molecule. The experimental and theoretical data were compared with th…

β-dehydroamino acidsFTIR spectroscopyα(E)-αMolecular orbital methodAmidic resonanceC5 hydrogen bondβ- dehydrobutyrineC5 conformationSolution peptide conformationDensity functionalsJOURNAL OF PEPTIDE RESEARCH
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