http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Elkhabiry Shaban (검색결과 3 건)
- 무료
- 기관 내 무료
- 유료
-
Galal A. M. Nawwar,Khlood S. Abdel Zaher,Elkhabiry Shaban,Nora M. A. El-Ebiary 한국섬유공학회 2020 Fibers and polymers Vol.21 No.6
The present study describes the synthesis of three new antibacterial azo disperse dyes from different diazotizedaryl amines (aniline, 2-aminothiazole, and sulfathiazole), followed by their reactions with a novel nontoxic antibacterialcyanoacetyl microcrystalline cellulose derivative (a) as a coupling component. The structures of the dyes were confirmed andelucidated by FTIR and 1H-NMR spectroscopy. The new dyes were also tested for antibacterial activity and toxicity, and theywere utilized for silk screen printing polyester and nylon 6 fabrics. The color strength and fastness properties of the dyes havebeen investigated, and they exhibited high resistance to washing, perspiration, and rubbing as well as fastness to sublimationand light. Moreover, the new dyes were tested for antibacterial activity on the printed polyester and nylon 6 fabrics.
-
Sherif S. Ragab,Ayman M. K. Sweed,Zeinab K. Hamza,Elkhabiry Shaban,Ahmed A. El-Sayed 한국섬유공학회 2022 Fibers and polymers Vol.23 No.8
We designed and developed a novel series of bioactive disperse dyes by conjugation of spirocyclic 2-thiopyrimidine scaffold with aryl or sulfa drug moieties in the same construct through azo linker to take advantage of thebioactive character of both motifs. The target molecules were simply approached on a gram scale via the diazocoupling ofspirocyclic 2-thiouracil 1 with aryl diazonium chloride derivatives to afford the heterocyclic azo-disperse dyes 4a-e inexcellent yield. These azo dyes were effectively utilized to make pastes for silkscreen printing of polyester fabrics. The colorcharacteristics of the dyes and their fastness properties including washing, rubbing, perspiration, sublimation, and lightfastness were also investigated. The antimicrobial activity of the produced dyes 4a-e was evaluated against some Grampositiveand Gram-negative bacteria, and the results revealed that 4d was more active than the standard drug cefoperazoneagainst the Gram-positive bacteria S. aureus. The antibacterial efficacy of the treated fabrics has also been investigatedrevealing that the dyed fabric 4b was found to have a potent inhibition on B. cereus (93 %), and against E. coli with areduction of (90 %).
-
Hayam A. Abd El Salam,Mohamed S. Abdel‑Aziz,Eslam Reda El‑Sawy,Elkhabiry Shaban 한국섬유공학회 2023 Fibers and polymers Vol.24 No.8
For conjugating sulfa drug moieties with Schiff’s bases scaffold in the same build through an azo linker to take advantage of the bioactive feature of both motifs, we designed and synthesized a series of bioactive disperse dyes. The target disperse dyes, methyl 2-(E-2-hydroxy-5-((E)-(4-sulfa-derivative) diazenyl)benzylidene) hydrazine-1-carbodithioates 4a–e have been synthesized via the acidic reaction of azo dyes 3a–e with methyl hydrazine carbodithioate. Structures of the synthesized dyes were clarified based on their spectral and elemental analyses. The effectiveness of the dyes was initially tested as an antibacterial toward Staphylococcus aureus ATCC 6538-P and Escherichia coli ATCC 25933. Dyes that were proven to be effective against bacteria have been used as disperse dyes to print polyester fabrics. The color properties of the dyes and their fastness properties counting washing, perspiration, light, rubbing, and sublimation fastness were also examined. The printed polyester fabrics were evaluated for their antibacterial activity via colony-forming unit (CFU) technique. Fabric samples treated with 4c, 4d, and 4b had promising anti-Gram-positive activities against S. aureus. Whereas 4c-, 4d-, and 4b-treated fabrics exhibited moderate anti-Gram-negative activities against the test bacterium E. coli.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
