High antibacterial performance of hydrophobic chitosan-based nanoparticles loaded with Carvacrol.

Autor: Luna M; Posgrado en Nanotecnología, Departamento de Física, Universidad de Sonora, Unidad Centro, C.P. 83000 Hermosillo, Sonora, Mexico., Beltran O; Posgrado en Nanotecnología, Departamento de Física, Universidad de Sonora, Unidad Centro, C.P. 83000 Hermosillo, Sonora, Mexico., Encinas-Basurto DA; Posgrado en Nanotecnología, Departamento de Física, Universidad de Sonora, Unidad Centro, C.P. 83000 Hermosillo, Sonora, Mexico., Ballesteros-Monrreal MG; Departamento de Ciencias Químico-Biológicas, Universidad de Sonora, Unidad Centro, C.P. 83000 Hermosillo, Sonora, Mexico., Topete A; Departamento de Fisiología, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Sierra Mojada 950, Apdo. Postal 44340, Guadalajara, Jalisco, Mexico., Hassan N; Programa Institucional de Fomento a la Investigación, Desarrollo e Innovación, Universidad Tecnológica Metropolitana, Santiago, Chile; Advanced Center for Chronic Diseases (ACCDis), Santos Dumont 964, Independencia, Santiago, Chile., López-Mata MA; Departamento de Ciencias de la Salud, Universidad de Sonora, Campus Cajeme, Blvd. Bordo Nuevo s/n, Antiguo Providencia, C.P. 8504, Cd. Obregón, Sonora, Mexico., Reyes-Márquez V; Departamento de Ciencias de la Salud, Universidad de Sonora, Campus Cajeme, Blvd. Bordo Nuevo s/n, Antiguo Providencia, C.P. 8504, Cd. Obregón, Sonora, Mexico., Valdez MA; Posgrado en Nanotecnología, Departamento de Física, Universidad de Sonora, Unidad Centro, C.P. 83000 Hermosillo, Sonora, Mexico., Juarez J; Posgrado en Nanotecnología, Departamento de Física, Universidad de Sonora, Unidad Centro, C.P. 83000 Hermosillo, Sonora, Mexico. Electronic address: josue.juarez@unison.mx.
Jazyk: angličtina
Zdroj: Colloids and surfaces. B, Biointerfaces [Colloids Surf B Biointerfaces] 2022 Jan; Vol. 209 (Pt 1), pp. 112191. Date of Electronic Publication: 2021 Oct 29.
DOI: 10.1016/j.colsurfb.2021.112191
Abstrakt: Bacterial infections have become one of the top ten public health concerns worldwide. These problems are aggravated with the emergence of multi-drug resistant bacterial strains. Thus, it is necessary to adopt novel technological strategies, such as development of bionanomaterials to prevent the infection, and treat this kind of bacteria. At this regard, the chemical modification of chitosan (Cs), by the covalent attachment of a hydrocarbon chain (octanoic acid), was developed to obtain hydrophobic chitosan (HCs). Then, HCs was used to synthetize nanoparticles using the well-known ionotropic gelation approach, optimizing the parameters, such as the TPP/HCs ratio and pH solution to get stable nanoparticles. Then, carvacrol (CAR) was loaded into NPs (HCs-CAR NPs) using different concentrations of 25%, 50% and 75% (%w/w CAR/HCs). The physicochemical properties for HCs-CAR NPs prepared at 50% of CAR stood out from the rest, showing a spherical morphology, with a size of 200 nm, Z potential of 10.4 mV and encapsulation efficiency of 56.28%. These formulations were chosen to evaluate the antibacterial activity, using Gram-negative (Escherichia coli) and Gram-positive bacterial model (Staphylococcus aureus). The HCs-CAR NPs showed great activity against both bacterial models, being more effective against Gram (+) strain (S. aureus), suggesting the potential application of these NPs as novel biomaterial to treat bacterial infection.
(Copyright © 2021 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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