Antibacterial Activity of Linezolid against Gram-Negative Bacteria: Utilization of e-Poly-l-Lysine Capped Silica Xerogel as an Activating Carrier.

Fecha de publicación: Fecha Ahead of Print:

Autores de IIS La Fe

Participantes ajenos a IIS La Fe

  • Guzel Kaya G
  • Medaglia S
  • Candela-Noguera V
  • Marcos MD
  • Aznar E
  • Deveci H
  • Martínez-Máñez R

Grupos

Abstract

In recent times, many approaches have been developed against drug resistant Gram-negative bacteria. However, low-cost high effective materials which could broaden the spectrum of antibiotics are still needed. In this study, enhancement of linezolid spectrum, normally active against Gram-positive bacteria, was aimed for Gram-negative bacteria growth inhibition. For this purpose, a silica xerogel prepared from a low-cost precursor is used as a drug carrier owing to the advantages of its mesoporous structure, suitable pore and particle size and ultralow density. The silica xerogel is loaded with linezolid and capped with e-poly-l-lysine. The developed nano-formulation shows a marked antibacterial activity against to Escherichia coli , Pseudomonas aeruginosa and Staphylococcus aureus. In comparison to free linezolid and e-poly-l-lysine, the material demonstrates a synergistic effect on killing for the three tested bacteria. The results show that silica xerogels can be used as a potential drug carrier and activity enhancer. This strategy could provide the improvement of antibacterial activity spectrum of antibacterial agents like linezolid and could represent a powerful alternative to overcome antibiotic resistance in a near future.

Datos de la publicación

ISSN/ISSNe:
1999-4923, 1999-4923

Pharmaceutics  MDPI

Tipo:
Article
Páginas:
-
PubMed:
33233423
Factor de Impacto:
1,054 SCImago
Cuartil:
Q1 SCImago

Citas Recibidas en Web of Science: 19

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Keywords

  • antibacterial activity, linezolid, mesoporous material, silica xerogel, e-poly-l-lysine

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