Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Nahed S. E. Ahmed"'
Autor:
Fatimah A. M. Al-Zahrani, Reda M. El-Shishtawy, Abdullah M. Asiri, Amerah M. Al-Soliemy, Khloud Abu Mellah, Nahed S. E. Ahmed, Abdesslem Jedidi
Publikováno v:
BMC Chemistry, Vol 14, Iss 1, Pp 1-11 (2020)
Abstract A new donor-π-acceptor derived from phenothiazine, namely 2-(2-((10-hexyl-10H-phenothiazin-3-yl)methylene)-3-oxo-2,3-dihydroinden-1-ylidene) malononitrile (PTZON) was synthesized and fully characterized, and its potential as a fluorescent s
Externí odkaz:
https://doaj.org/article/4b32c3a8604947d88d9060f9a1518148
Publikováno v:
Catalysts, Vol 11, Iss 7, p 820 (2021)
The strong catalytic performance, eco-friendly reaction systems, and selectivity of enzyme-based biocatalysts are extremely interesting. Immobilization has been shown to be a good way to improve enzyme stability and recyclability. Chitosan-incorporat
Externí odkaz:
https://doaj.org/article/6cd1401555074e3facc020e8e279ebbd
Publikováno v:
The Scientific World Journal, Vol 2014 (2014)
Seven reactive dyes judiciously selected based on chemical structures and fixation mechanisms were applied at 2% owf of shade on amidoximated acrylic fabrics. Amidoximated acrylic fabric has been obtained by a viable amidoximation process. The dyeabi
Externí odkaz:
https://doaj.org/article/ea5c732fb2cd427ba336d25b2a4de7af
Publikováno v:
International Journal of Biological Macromolecules. 148:401-414
A novel built-in approach for the in situ formed hemicyanine dyes in the chitosan matrix is presented. Chitosan was reacted with salicylaldehyde to afford the corresponding Schiff base in good yield. This derivative was then converted to two heterocy
Autor:
Nahed S. E. Ahmed, Fatimah A. M. Al-Zahrani, Reda M. El-Shishtawy, Mohamed S. Hamdy, Abdullah M. Asiri, Nasser S Awwad
Publikováno v:
Arabian Journal of Chemistry, Vol 13, Iss 2, Pp 3633-3638 (2020)
A new water-insoluble organic dye, namely, 2-((10-decyl-10H-phenothiazin-3-yl)methylene)malononitrile, was synthesized and fully characterized. It was envisioned that photocatalytic decolourization of a dye-containing long chain would pave the way fo
Publikováno v:
Catalysts
Volume 11
Issue 7
Catalysts, Vol 11, Iss 820, p 820 (2021)
Volume 11
Issue 7
Catalysts, Vol 11, Iss 820, p 820 (2021)
The strong catalytic performance, eco-friendly reaction systems, and selectivity of enzyme-based biocatalysts are extremely interesting. Immobilization has been shown to be a good way to improve enzyme stability and recyclability. Chitosan-incorporat
Publikováno v:
Egyptian Journal of Chemistry. 63:6-8
It was envisioned that rendering the surface charge of cotton fabric cationic at acidic pH would allow it dyeable with natural dyes. For this purpose and with a vision for introducing a completely green process, the fabric was pretreated with tannic
Autor:
Nahed S. E. Ahmed
Publikováno v:
Egyptian Journal of Chemistry.
Smart textiles are responsive fabrics for environmental changes, such as biological, electrical, thermal, mechanical, chemical, magnetic, optical, etc. It was envisioned that silver nanoparticles, in conjunction with polypyrrole, would render the cot
Publikováno v:
Egyptian Journal of Chemistry.
Polyester fabrics are conventionally dyed mainly at either high temperature and high pressure or normal pressure using a toxic carrier. These harsh method not only energy consuming but as well affects the environment severely. Thus, for cleaner produ
Publikováno v:
Egyptian Journal of Chemistry. 63:6-7
Gelatin-tannic acid (bio-mordant) treated cotton fabric was printed with natural and synthetic thickeners. Madder natural dye was used with different thickeners include meypro gum, carboxymethyl cellulose, sodium alginate, or acrylate-based synthetic