3538-69-0Relevant articles and documents
Synthesis and application of photo-active carboxymethyl cellulose derivatives
Monier,Abdel-Latif,Ji
, p. 137 - 146 (2016)
In this work, the polysaccharide carboxymethyl cellulose (CMC) was first activated via periodate oxidation then modified by insertion of photo-active cinnamic acid hydrazide moieties to finally produce the photo-crosslinkable CMC-CM with various extents of functionalizations. The chemical structures of the manufactured polymeric materials were entirely investigated utilizing FTIR, 1H, 13C NMR, and UV-vis spectra. Upon irradiation in UV light, the progress and kinetics of the cross-linking were detected using UV-vis spectra. Moreover, the crystallinity changes before and after chemical modification and subsequent UV irradiation were examined by XRD spectra. Also, the obtained hydrogels with various cross-linking densities were freeze dried to visualize the morphological changes using SEM. In addition, the rheological experiments indicated the improvement of the hydrogel mechanical properties by increasing both UV irradiation time and degree of cinnamate functionalization. The obtained hydrogel exhibited good swelling, gelation and biodegradation properties, which indicate a promising potential in different biomedical applications.
Synthesis, characterization and study of mesomorphic behavior of new bent and linear core compounds containing heterocyclic rings
Al-Dujaili, Ammar H.,Karam, Nisreen H.,Shanshal, Alaa K.
, (2021/08/20)
The article presents the synthesis and liquid crystalline properties of some of new bent and linear core compounds containing a 1,3,4-oxadiazole, piperazine and thiazolidin-4-one rings as a central core. The new synthesized compounds were characterized by elemental analysis and FTIR, 1HNMR and mass spectroscopy). The liquid crystalline properties were studied by polarized optical microscopy and differential scanning calorimetry. All Schiff bases compounds with 1,3,4-oxadiazole and piprzaine ring in central core presented liquid crystalline properties. The liquid crystallinity of compounds containing 1,3,4-oxadiazole and thiazolidin-4-one rings as a central core were found depending on the type of terminal substituents.
Novel fluorozoone-like fluorinion probe based on flavonoids
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Paragraph 0026; 0027, (2020/02/06)
The invention discloses a preparation method of a novel fluorozoone-like visible fluorinion probe which is prepared from flavonoids of a formula I shown in the description and a 3-phenylacrylic acid type derivative. The preparation method comprises the fo
Cinnamoyl-N-Acylhydrazone-Donepezil Hybrids: Synthesis and Evaluation of Novel Multifunctional Ligands Against Neurodegenerative Diseases
Ortiz, Cindy Juliet Cristancho,Damasio, Caio Miranda,Pruccoli, Letizia,Nadur, Nathália Fonseca,de Azevedo, Luciana Luiza,Guedes, Isabella Alvim,Dardenne, Laurent Emmanuel,Kümmerle, Arthur Eugen,Tarozzi, Andrea,Viegas, Claudio
, p. 3003 - 3020 (2020/10/22)
Abstract: A new series of ten multifunctional Cinnamoyl-N-acylhydrazone-donepezil hybrids was synthesized and evaluated as multifunctional ligands against neurodegenerative diseases. The molecular hybridization approach was based on the combination of 1-b