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Issue 14, 2015
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Antifungal nanofibers made by controlled release of sea animal derived peptide

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Candida albicans is a common human-pathogenic fungal species with the ability to cause several diseases including surface infections. Despite the clear difficulties of Candida control, antimicrobial peptides (AMPs) have emerged as an alternative strategy for fungal control. In this report, different concentrations of antifungal Cm-p1 (Cencritchis muricatus peptide 1) were electrospun into nanofibers for drug delivery. The nanofibers were characterized by mass spectrometry confirming the presence of the peptide on the scaffold. Atomic force microscopy and scanning electronic microscopy were used to measure the diameters, showing that Cm-p1 affects fiber morphology as well as the diameter and scaffold thickness. The Cm-p1 release behavior from the nanofibers demonstrated peptide release from 30 min to three days, leading to effective yeast control in the first 24 hours. Moreover, the biocompatibility of the fibers were evaluated through a MTS assay as well as ROS production by using a HUVEC model, showing that the fibers do not affect cell viability and only nanofibers containing 10% Cm-p1–PVA improved ROS generation. In addition, the secretion of pro-inflammatory cytokines IL-6 and TNF-α by the HUVECs was also slightly modified by the 10% Cm-p1–PVA nanofibers. In conclusion, the electrospinning technique applied here allowed for the manufacture of biodegradable biomimetic nanofibrous extracellular membranes with the ability to control fungal infection.

Graphical abstract: Antifungal nanofibers made by controlled release of sea animal derived peptide

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The article was received on 02 Feb 2015, accepted on 25 Feb 2015 and first published on 04 Mar 2015

Article type: Paper
DOI: 10.1039/C5NR00767D
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Citation: Nanoscale, 2015,7, 6238-6246
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    Antifungal nanofibers made by controlled release of sea animal derived peptide

    J. F. C. Viana, J. Carrijo, C. G. Freitas, A. Paul, J. Alcaraz, C. C. Lacorte, L. Migliolo, C. A. Andrade, R. Falcão, N. C. Santos, S. Gonçalves, A. J. Otero-González, A. Khademhosseini, S. C. Dias and O. L. Franco, Nanoscale, 2015, 7, 6238
    DOI: 10.1039/C5NR00767D

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