DFT/NBO analysis of interaction between a CNT and anti-cancer drugs
- سال انتشار: 1394
- محل انتشار: مجله بین المللی ابعاد نانو، دوره: 6، شماره: 5
- کد COI اختصاصی: JR_IJND-6-5_005
- زبان مقاله: انگلیسی
- تعداد مشاهده: 224
نویسندگان
Young Researchers and Elite Club, Rasht Branch, Islamic Azad University, Rasht, Iran
Department of Chemistry, Rasht Branch, Islamic Azad University, Rasht, Iran.
Young Researchers and Elite Club, Rasht Branch, Islamic Azad University, Rasht, Iran
چکیده
Having conducted fundamental projects, scientists have expressed their hope to develop the use of carbon nanotubes to release drugs. It is important to release drugs in cell without damaging healthy cells of tissues under study. Researchers have shown the fact that nanotubes can perform this function perfectly. To this objective, in the present study the interactions between four anti-cancer drugs with a carbon nanotube (CNT) (۶,۶), containing ۶۰ carbon atoms, have been investigated. It is noteworthy that all of these drugs have functional groups, from which the reaction with the nanotube can take place. The Density Functional Theory (DFT) calculations have been performed by Beck, three-parameter, Lee-Yang-Parr (B۳LYP) method and ۶-۳۱G(d) basis set for full optimization of drugs, nanotube and the formed complexes. The Natural Bond Orbital (NBO) analysis and frequency calculations have been also performed for all structures using B۳LYP method and ۶-۳۱G(d) basis set in ۲۹۸K. According to the results, among all drugs under study, only two complexes between Carmustine and nanotube can be thermodynamically formed in ۲۹۸K. The stability constants are calculated thereby showing a considerably large amount. Therefore, the nanotube can be a useful container for this drug. Also, NBO analysis shows that there exist hyperconjugative effects arising from an overlap between occupied orbitals in drugs and unoccupied orbitals in nanotube.کلیدواژه ها
Anti-cancer drug, Carbon Nanotube, Drug Delivery, density functional theory, Natural bond orbitalاطلاعات بیشتر در مورد COI
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