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Development of a Nanostructured Film Containing Palygorskite and Dermaseptin 01 Peptide for Biotechnological Applications

Published online by Cambridge University Press:  22 January 2024

Karla Costa Bezerra Fontenele Oliveira ,
Emanuel Airton de Oliveira Farias ,
Paulo Ronaldo Sousa Teixeira ,
Vitor Schwenck Brandão ,
Rafael Miguel Sábio ,
Alyne Rodrigues de Araújo ,
Peter Eaton ,
Luiz Carlos Bertolino ,
Marcelo Porto Bemquerer  and
Hernane da Silva Barud
...Show all authors
Karla Costa Bezerra Fontenele Oliveira
Affiliation:
Laboratório de Pesquisa e Desenvolvimento de Novos Materiais e Sistemas Sensores (MATSENS), Universidade Federal do Piauí, Teresina, Piauí 64049-550, Brazil
Emanuel Airton de Oliveira Farias
Affiliation:
Laboratório de Pesquisa e Desenvolvimento de Novos Materiais e Sistemas Sensores (MATSENS), Universidade Federal do Piauí, Teresina, Piauí 64049-550, Brazil
Paulo Ronaldo Sousa Teixeira
Affiliation:
Laboratório de Pesquisa e Desenvolvimento de Novos Materiais e Sistemas Sensores (MATSENS), Universidade Federal do Piauí, Teresina, Piauí 64049-550, Brazil
Vitor Schwenck Brandão
Affiliation:
Centro de Tecnologia Mineral – CETEM, Cidade Universitária, Ilha do Fundão, Rio de Janeiro, RJ 21941908, Brazil
Rafael Miguel Sábio
Affiliation:
Laboratório de Biopolímeros e Biomateriais – BIOPOLMAT, Universidade de Araraquara, UNIARA, Araraquara, SP 14801320, Brazil
Alyne Rodrigues de Araújo
Affiliation:
Núcleo de Pesquisa em Biodiversidade e Biotecnologia – BIOTEC, Universidade Federal do Piauí, Campus Ministro Reis Velloso, Parnaíba, PI 64202020, Brazil
Peter Eaton
Affiliation:
LAQV-REQUIMTE, Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, 4169007 Porto, Portugal
Luiz Carlos Bertolino
Affiliation:
Centro de Tecnologia Mineral – CETEM, Cidade Universitária, Ilha do Fundão, Rio de Janeiro, RJ 21941908, Brazil
Marcelo Porto Bemquerer
Affiliation:
Embrapa Recursos Genéticos e Biotecnologia, Asa Norte, Brasília, DF 70770917, Brazil
Hernane da Silva Barud
Affiliation:
Laboratório de Biopolímeros e Biomateriais – BIOPOLMAT, Universidade de Araraquara, UNIARA, Araraquara, SP 14801320, Brazil
José Roberto de Souza de Almeida Leite
Affiliation:
Faculdade de Medicina, FM, Universidade de Brasília, UnB, Campus Universitário Darcy Ribeiro, Brasília, DF 70910900, Brazil
Carla Eiras*
Affiliation:
Laboratório de Pesquisa e Desenvolvimento de Novos Materiais e Sistemas Sensores (MATSENS), Universidade Federal do Piauí, Teresina, Piauí 64049-550, Brazil Núcleo de Pesquisa em Biodiversidade e Biotecnologia – BIOTEC, Universidade Federal do Piauí, Campus Ministro Reis Velloso, Parnaíba, PI 64202020, Brazil
*
e-mail: carla.eiras.ufpi@gmail.com
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Abstract

Clay minerals are suitable matrices to anchor organic molecules such as antimicrobial peptides (AMPs) so that their bioactivity is maintained, enabling the formation of new materials with potential for new applications in biotechnology. The objective of the present study was to develop a nanostructured film where the properties of palygorskite (Plg) were combined at the molecular level with Dermaseptin 01 (DRS 01), in which the clay mineral also served as a substrate for the immobilization of this peptide. The films were prepared using the Layer-by-Layer (LbL) self-assembly technique. Crude palygorskite without purification (Plg IN) was subjected to physical and chemical procedures to increase its adsorptive properties. The structure, chemical composition, and morphology of Plg were investigated by X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), X-ray fluorescence spectrometry (XRF), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). LbL films were adsorbed onto ITO (Indium Tin Oxide) and characterized electrochemically by cyclic voltammetry (CV), UV-Visible spectroscopy, and atomic force microscopy (AFM). For the ITO/DRS 01 and ITO/Plg/DRS 01 films, an oxidation process at +0.77 V was observed, confirming that the DRS 01 maintained its electroactive behavior and intrinsic properties. The results also showed that Plg served as excellent support for the immobilization of DRS 01, increasing its concentration and availability in the film form. This work reported immobilizing the DRS 01 peptide with Plg for the first time in an ultrathin film with bioactive properties. Thus, the film developed can be explored for applications such as biosensor devices and antimicrobial coating materials as well as other biotechnological applications.

Keywords

Cationic antimicrobial peptidesFibrous clay mineralsLayer-by-layerPithecopus hypochondriasisThin film
Type
Original Paper
Information
Clays and Clay Minerals , Volume 71 , Issue 5 , October 2023 , pp. 600 - 615
Copyright
Copyright © The Author(s), under exclusive licence to The Clay Minerals Society 2023

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Footnotes

Associate Editor: Jana Madejová.

This article was updated to change the Associate Editor to Jana Madejová.

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