FTIR and FT-Raman spectra of 2-amino-6-bromo-3-formylchromone (ABFC) have been recorded, using Bruker IFS 66V spectrometer. A detailed vibrational spectral analysis carried out and assignments of the observed bands have been proposed on the basis of fundamentals, overtones and combinations, by assuming C(S) point group symmetry. A normal coordinate analysis has been performed to characterise the vibrational fundamentals in terms of potential energy distribution (PED).
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http://dx.doi.org/10.1016/S1386-1425(03)00330-5 | DOI Listing |
Int J Biol Macromol
December 2024
School of Animal Technology and Innovation, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand. Electronic address:
This study addresses the valorization of duck blood, an underutilized protein-rich by-product from the poultry industry, into bioactive protein hydrolysates with antioxidant and ACE inhibitory properties. Raw and heat-treated duck blood were compared as substrates for enzymatic hydrolysis using Neutrase and Papain. Gel electrophoresis revealed that heat treatment reduced fibrinogen content, while FTIR analysis showed that heat treatment modified the protein structure, increasing β-sheet content from 21.
View Article and Find Full Text PDFBioengineered
December 2024
Department of Chemical and Environmental Engineering, Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Kuala Lumpur, Malaysia.
Cadmium (Cd) has become a severe issue in relatively low concentration and attracts expert attention due to its toxicity, accumulation, and biomagnification in living organisms. Cd does not have a biological role and causes serious health issues. Therefore, Cd pollutants should be reduced and removed from the environment.
View Article and Find Full Text PDFSpectrochim Acta A Mol Biomol Spectrosc
February 2023
University of Bielsko-Biała, Faculty of Health Sciences, ul. Willowa 2, 43-300 Bielsko-Biała, Poland.
Studies with the use of FTIR and FTR methods to find spectroscopic biomarkers within the 1740 cm band of pathological tissues found that oxidative stress, including damage to epidermis and structural changes in pathological amnion and placenta tissue, are associated with the occurrence of products of lipid peroxidation and have impact on fluidity and transport function of membranes. In particular, the findings show that the absence of a marker lipid band of approx. 1743 cm and the occurrence of a minimum of 1764 cm (FTIR) and 1734 cm (FTR) testify to the integrity and absence of damage in the allogeneic dermis, while the presence the 1743 or 1747 cm bands indicates denaturation of the thermally or electrically burned epidermis.
View Article and Find Full Text PDFNanotechnol Sci Appl
December 2021
University of Bielsko-Biała, Faculty of Health Sciences, Bielsko-Biała, 43-300, Poland.
Introduction: The aim of this interdisciplinary study was to answer the question of whether active antioxidants as graphene oxide (GO), sodium ascorbate, and L-ascorbic acid modify at a molecular and supramolecular level the tissue of pathological amnion and the necrotic eschar degraded in thermal burn. We propose new solutions of modifiers based on GO that will become innovative ingredients to be used in transplants (amnion) and enhance regeneration of epidermis degraded in thermal burn.
Methods: A Nicolet 6700 spectrophotometer with Omnic software and the EasiDiff diffusion accessory were used in FTIR spectroscopic analysis.
The objective of this study was to prepare and evaluate ivabradine HCl-loaded microspheres consisting of Eudragit LIOO-55 and ethyl cellulose prepared by oil-in-oil solvent evaporation method. Ivabradine HCl was encapsulated into microspheres by in situ method. The resultant microspheres were characterized with respect to drug loading, flow properties, Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), X-ray diffractometry (XRD), thermal analysis and release behavior.
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