Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Noura Y. Elmehbad"'
Autor:
Reem T. Alfuraydi, Nouf F. Al-Harby, Fahad M. Alminderej, Noura Y. Elmehbad, Nadia A. Mohamed
Publikováno v:
Gels, Vol 9, Iss 11, p 882 (2023)
In our previous work, three different weight ratios of chitosan/PVA (1:3, 1:1, and 3:1) were blended and then cross-linked with trimellitic anhydride isothiocyanate (TAI) at a concentration depending on their chitosan content, obtaining three hydroge
Externí odkaz:
https://doaj.org/article/084e59fd86274d77bf77a37a1922f521
Publikováno v:
Polymers, Vol 15, Iss 6, p 1529 (2023)
A new hydrogel, based on chitosan crosslinked with 2-chlorophenyl-bis(6-amino-1,3-dimethyluracil-5-yl) methane, (2Clph-BU-Cs), has been successfully created. Various instrumental techniques such as elemental analysis, FTIR, SEM, and XRD were used to
Externí odkaz:
https://doaj.org/article/a649b74f8a99487496997ccdd65b1e68
Publikováno v:
Polymers, Vol 15, Iss 4, p 980 (2023)
A new series of hydrogels was successfully prepared by incorporating various substituted bisuracil (R-BU) linkages between chitosan Schiff’s base chains (R-BU-CsSB) and between chitosan chains (R-BU-Cs). After protection of the amino groups of chit
Externí odkaz:
https://doaj.org/article/90a8a9452e754125a599468e21245f95
Publikováno v:
International Journal of Biological Macromolecules. 205:719-730
Two novel chitosan derivatives were prepared by incorporating salicylhydrazide into chitosan Schiff base (SCsSB) and chitosan (SCs). Two nanocomposites, SCs/TiO
Autor:
Nadia A. Mohamed, Noura Y. Elmehbad
Publikováno v:
Polymer Bulletin. 79:9345-9370
Autor:
Noura Y. Elmehbad, Nadia A. Mohamed
Publikováno v:
International Journal of Polymeric Materials and Polymeric Biomaterials. 71:1369-1379
A new modified chitosan derivative (N-acetyl,N’-chitosanacetohydrazide, ACsAH) and its cobalt(II), nickel(II), manganese(II), and copper(II) complexes were successfully prepared. Their structures w...
Autor:
Noura Y. Elmehbad, Nadia A. Mohamed
Publikováno v:
International Journal of Polymeric Materials and Polymeric Biomaterials. 71:969-982
Two new hydrogels have been synthesized by incorporating terephthalohydrazido linkages into chitosan Schiff base (TCsSB) and chitosan (TCs). They swell at pH 4 more than at pH 9 and 7. TCs has a hi...
Autor:
Noura Y. Elmehbad, Nadia A. Mohamed
Publikováno v:
Polymer Bulletin. 78:6183-6204
Novel three biologically active itaconimido thiourea derivatives (DI, DII and DIII) were synthesized via reaction of N-[4-(isothiocyanatecarbonyl)phenyl] itaconimide with either aniline, p-toluidine or p- amino benzoic acid, respectively. The radical
Autor:
Nadia A. Mohamed, Noura Y. Elmehbad
Publikováno v:
International Journal of Biological Macromolecules. 151:92-103
Chitosan was chemically modified through a four-step procedure. First, the amino groups of chitosan have reacted with benzaldehyde (Derivative 1); second, hydroxyl groups on C6 of Derivative 1 have reacted with epichlorohydrin (Derivative 2); third,