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Dynamics of Antimicrobial Peptide Encapsulation in Carbon Nanotubes: The Role of Hydroxylation

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Introduction: Carbon nanotubes (CNTs) have been widely employed as biomolecule carriers, but there is a need for further functionalization to broaden their therapeutic application in aqueous environments. A few reports have unraveled biomolecule–CNT interactions as a measure of response of the nanocarrier to drug-encapsulation dynamics. Methods: Herein, the dynamics of encapsulation of the antimicrobial peptide HA-FD-13 (accession code 2L24) into CNTs and hydroxylated CNTs (HCNTs) is discussed. Results: The van der Waals (vdW) interaction energy of CNT–peptide and HCNT–peptide complexes decreased, reaching − 110.6 and − 176.8 kcal.Mol− 1, respectively, once encapsulation of the peptide inside the CNTs had been completed within 15 ns. The free energy of the two systems decreased to − 43.91 and − 69.2 kcal.Mol− 1 in the same order. Discussion: The peptide was encased in the HCNTs comparatively more rapidly, due to the presence of both electrostatic and vdW interactions between the peptide and HCNTs. However, the peptide remained encapsulated throughout the vdW interaction in both systems. The negative values of the free energy of the two systems showed that the encapsulation process had occurred spontaneously. Of note, the lower free energy in the HCNT system suggested more stable peptide encapsulation

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Kategoria:
Publikacja w czasopiśmie
Typ:
artykuły w czasopismach
Opublikowano w:
International Journal of Nanomedicine nr 17, strony 125 - 136,
ISSN: 1178-2013
Język:
angielski
Rok wydania:
2022
Opis bibliograficzny:
Zarghami Dehaghani M., Yousefi F., Seidi F., Sajadi S. M., Rabiee N., Habibzadeh S., Esmaeili A., Hamed Mashhadzadeh A., Mostafavi E., Saeb M.: Dynamics of Antimicrobial Peptide Encapsulation in Carbon Nanotubes: The Role of Hydroxylation// International Journal of Nanomedicine -Vol. 17, (2022), s.125-136
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.2147/ijn.s335380
Źródła finansowania:
  • COST_FREE
Weryfikacja:
Politechnika Gdańska

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