Molecular modeling of adsorption of 5-aminosalicylic acid in the halloysite nanotube

Halloysite nanotubes are becoming interesting materials for drug delivery. The knowledge of surface interactions is important for optimizing this application. The aim of this work is to perform a computational study of the interaction between 5-aminosalicylic acid (5-ASA) drug and halloysite nanotub...

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Detalhes bibliográficos
Autores: Borrego Sánchez, Ana, Awad, Mahmoud E., Sainz-Díaz, C. Ignacio
Tipo de documento: artigo
Estado:Versão publicada
Data de publicação:2018
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositório:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/214751
Acesso em linha:http://hdl.handle.net/10261/214751
Access Level:Acceso aberto
Palavra-chave:Halloysite
5-aminosalicylic acid
Surface adsorption
DFT calculations
Force fields
Nanotubes
Descrição
Resumo:Halloysite nanotubes are becoming interesting materials for drug delivery. The knowledge of surface interactions is important for optimizing this application. The aim of this work is to perform a computational study of the interaction between 5-aminosalicylic acid (5-ASA) drug and halloysite nanotubes for the development of modified drug delivery systems. The optimization of this nanotube and the adsorption of different conformers of the 5-ASA drug on the internal surface of halloysite in the presence and absence of water were performed using quantum mechanical calculations by using Density Functional Theory (DFT) and methods based on atomistic force fields for molecular modeling, respectively.