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Boron nitride nanotube as an antimicrobial peptide carrier: A theoretical insight

Zarghami Dehaghani, M. Z ; Sharif University of Technology | 2021

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  1. Type of Document: Article
  2. DOI: 10.2147/IJN.S298699
  3. Publisher: Dove Medical Press Ltd , 2021
  4. Abstract:
  5. Introduction: Nanotube-based drug delivery systems have received considerable attention because of their large internal volume to encapsulate the drug and the ability to penetrate tissues, cells, and bacteria. In this regard, understanding the interaction between the drug and the nanotube to evaluate the encapsulation behavior of the drug in the nanotube is of crucial importance. Methods: In this work, the encapsulation process of the cationic antimicrobial peptide named cRW3 in the biocompatible boron nitride nanotube (BNNT) was investigated under the Canonical ensemble (NVT) by molecular dynamics (MD) simulation. Results: The peptide was absorbed into the BNNT by van der Waals (vdW) interaction between cRW3 and the BNNT, in which the vdW interaction decreased during the simulation process and reached the value of −142.7 kcal·mol−1 at 4 ns. Discussion: The increase in the potential mean force profile of the encapsulated peptide during the pulling process of cRW3 out of the nanotube showed that its insertion into the BNNT occurred spontaneously and that the inserted peptide had the desired stability. The energy barrier at the entrance of the BNNT caused a pause of 0.45 ns when half of the peptide was inside the BNNT during the encapsulation process. Therefore, during this period, the peptide experienced the weakest movement and the smallest conformational changes. © 2021 Zarghami Dehaghani et al
  6. Keywords:
  7. Boron nitride nanotube ; Polypeptide antibiotic agent ; Amino acid ; Boron derivative ; Boron nitride ; Drug carrier ; Nanotube ; Pore forming cytotoxic protein ; Absorption ; Biocompatibility ; Chemical interaction ; Drug delivery system ; Drug screening ; Drug structure ; Encapsulation ; Molecular dynamics ; Chemistry ; Amino Acids ; Boron Compounds ; Drug Carriers ; Drug Delivery Systems ; Molecular Dynamics Simulation ; Nanotubes ; Pore Forming Cytotoxic Proteins ; Protein Conformation ; Thermodynamics
  8. Source: International Journal of Nanomedicine ; Volume 16 , 2021 , Pages 1837-1847 ; 11769114 (ISSN)
  9. URL: https://www.dovepress.com/boron-nitride-nanotube-as-an-antimicrobial-peptide-carrier-a-theoretic-peer-reviewed-fulltext-article-IJN