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Recent Patents on Biotechnology

Editor-in-Chief

ISSN (Print): 1872-2083
ISSN (Online): 2212-4012

Research Article

Recent Patents on Impact of Lipopeptide on the Biofilm Formation onto Titanium and Stainless Steel Surfaces

Author(s): Mauro Ezio Eustáquio Pires, Adriano Guimarães Parreira, Tuânia Natacha Lopes Silva, Heloísa Carneiro Colares, José Antonio da Silva, Juliana Teixeira de Magalhães, Alexsandro Sobreira Galdino, Daniel Bonoto Gonçalves, José Mauro Granjeiro* and Paulo Afonso Granjeiro*

Volume 14, Issue 1, 2020

Page: [49 - 62] Pages: 14

DOI: 10.2174/1872208313666190822150323

Price: $65

Abstract

Background: Numerous causes of infection in arthroplasties are related to biofilm formation on implant surfaces. In order to circumvent this problem, new alternatives to prevent bacterial adhesion biosurfactants-based are emerging due to low toxicity, biodegradability and antimicrobial activity of several biosurfactants. We revised all patents relating to biosurfactants of applicability in orthopedic implants.

Methods: This work aims to evaluate the capability of a lipopeptide produced by Bacillus subtilis ATCC 19659 isolates acting as inhibitors of the adhesion of Escherichia coli ATCC 25922 and Staphylococcus aureus ATCC 29213 onto titanium and stainless steel surfaces and its antimicrobial activity.

Results: The adhesion of the strains to the stainless-steel surface was higher than that of titanium. Preconditioning of titanium and stainless-steel surfaces with 10 mg mL-1 lipopeptide reduced the adhesion of E. coli by up to 93% and the adhesion of S. aureus by up to 99.9%, suggesting the strong potential of lipopeptides in the control of orthopedic infections. The minimal inhibitory concentration and minimum bactericidal concentration were 10 and 240 µg mL-1 for E. coli and S. aureus, respectively.

Conclusion: The lipopeptide produced by Bacillus subtilis ATCC 19659 presented high biotechnological application in human health against orthopedic implants infections.

Keywords: Lipopeptide, Bacillus subtilis, titanium, stainless steel, biofilm, arthroplasties.

Graphical Abstract

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