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Graphene as Nanocarrier for Gold(I)-Monocarbene Complexes: Strength and Nature of Physisorption        
Yazarlar
Öğr. Gör. Dr. Cahit ÖREK Öğr. Gör. Dr. Cahit ÖREK
Kastamonu Üniversitesi, Türkiye
Massımılıano Bartolomeı
Cecıllıa Colettı
Niyazi Bulut
Fırat Üniversitesi, Türkiye
Özet
Gold(I) metal complexes are finding increasing applications as therapeutic agents against a variety of diseases. As their potential use as effective metallodrugs is continuously confirmed, the issue of their administration, distribution and delivery to desired biological targets emerges. Graphene and its derivatives possess attractive properties in terms of high affinity and low toxicity, suggesting that they can efficaciously be used as drug nanocarriers. In the present study, we computationally address the adsorption of a gold(I) N-heterocyclic monocarbene, namely, IMeAuCl (where IMe = 1,3-dimethylimidazol-2-ylidene), on graphene. The Au(I) N-heterocyclic carbene family has indeed shown promising anticancer activity and the N-heterocyclic ring could easily interact with planar graphene nanostructures. By means of high-level electronic structure approaches, we investigated the strength and nature of the involved interaction using small graphene prototypes, which allow us to benchmark the best-performing DFT functionals as well as assess the role of the different contributions to total interaction energies. Moreover, realistic adsorption enthalpies and free energy values are obtained by exploiting the optimal DFT method to describe the drug adsorption on larger graphene models. Such values (ΔHads = −18.4 kcal/mol and ΔGads= −7.20 kcal/mol for the largest C150H30 model) indicate a very favorable adsorption, mainly arising from the dispersion component of the interaction, with the electrostatic attraction also playing a non-negligible role.
Anahtar Kelimeler
DFT | drug nanocarriers | gold complexes | graphene | metal based anticancer compounds
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı MOLECULES
Dergi ISSN 1420-3049
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q2
Makale Dili İngilizce
Basım Tarihi 05-2023
Cilt No 28
Sayı 9
Sayfalar 3941 / 3955
Doi Numarası 10.3390/molecules28093941
Makale Linki http://dx.doi.org/10.3390/molecules28093941