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العنوان
Grafting of some heterocyclic compounds onto surface of carbon nanotubes /
الناشر
Esraa Azmy Abdelwahab ,
المؤلف
Esraa Azmy Abdelwahab
هيئة الاعداد
باحث / Esraa Azmy Abdelwahab
مشرف / Nadia Hanafy Metwally
مشرف / Gamal Riad Saad
مشرف / Mahmoud Aly Elkomy
تاريخ النشر
2019
عدد الصفحات
180 P . :
اللغة
الإنجليزية
الدرجة
الدكتوراه
التخصص
Organic Chemistry
تاريخ الإجازة
1/11/2019
مكان الإجازة
جامعة القاهرة - كلية العلوم - Organic Chemistry
الفهرس
Only 14 pages are availabe for public view

from 261

from 261

Abstract

Pyrazole and pyrazolone derivatives were grafted onto the surface of carboxylated multiwalled carbon nanotubes (MWCNTs)via the reaction of carboxylated MWCNTs and the diazonium salts of pyrazoles and pyrazolones using mixed acid treatment. The insertion of the pyrazole and pyrazolone moieties was characterized by Fourier transform infrared (FT-IR) spectroscopy, energy dispersion spectroscopy, transmission electron microscopy, X-ray diffraction and thermogravimetric (TGA). The results indicate that pyrazole and pyrazolone moieties successfully attached on carboxylated MWCNTs surface. The neat pyrazole and pyrazolone derivatives and their corresponding CNTs were tested against Staphylococcus aureus, Bacillus subtilus, Escherichia coli, and Candida albicans bacteria,and Aspergillusniger fungi. The results showed that the grafted CNTs of pyrazole and pyrazolone derivatives have better antimicrobial activity than the neat pyrazole and pyrazolone derivatives. Also, the Zeta potential was carried out for the synthesized compounds, In addition to molecular docking was performed of the most potent antimicrobial compounds to investigate the existence of the interactions between the most active inhibitors and Farnesyl pyrophosphate synthase (FPPS)