Antibacterial Activity of Chlorhexidine-Killed Bacteria: The Zombie Cell Effect.


Journal

ACS omega
ISSN: 2470-1343
Titre abrégé: ACS Omega
Pays: United States
ID NLM: 101691658

Informations de publication

Date de publication:
17 Dec 2019
Historique:
received: 01 02 2019
accepted: 15 10 2019
entrez: 24 12 2019
pubmed: 24 12 2019
medline: 24 12 2019
Statut: epublish

Résumé

We report a biocidal zombie effect of chlorhexidine, a wide-scope biocidal agent commonly used in disinfectant and antiseptic formulations. The zombie effect refers to the ability of dead bacteria killed by a biocidal agent to act as efficient biocidal agents toward a new generation of viable bacteria. The killed bacteria serve as a reservoir for the antibacterial agent incorporated within them; and the new viable population of bacteria acts as a trap of the bioactive agent, shifting the equilibrium of this agent between the reservoir in the dead cells and their aqueous environment. This report is a major generalization of the zombie phenomenon reported previously for silver from the points of view of extending to organic antibacterial agents; extending the effect to both Gram-negative-

Identifiants

pubmed: 31867476
doi: 10.1021/acsomega.9b00297
pmc: PMC6921249
doi:

Types de publication

Journal Article

Langues

eng

Pagination

20868-20872

Informations de copyright

Copyright © 2019 American Chemical Society.

Déclaration de conflit d'intérêts

The authors declare no competing financial interest.

Références

Periodontol 2000. 1997 Oct;15:55-62
pubmed: 9643233
J Endod. 1999 Mar;25(3):167-71
pubmed: 10321180
Anaesth Intensive Care. 2008 Jul;36(4):502-12
pubmed: 18714617
J Control Release. 2004 Jan 8;94(1):63-74
pubmed: 14684272
J Immunol. 2004 Jun 1;172(11):6858-65
pubmed: 15153504
Am J Surg. 1989 Mar;157(3):359-65
pubmed: 2645807
Vet Res. 2017 Jun 24;48(1):37
pubmed: 28645300
Cochrane Database Syst Rev. 2008 Oct 08;(4):CD002106
pubmed: 18843629
Curr Opin Biotechnol. 2004 Dec;15(6):530-7
pubmed: 15560979
Clin Microbiol Rev. 1999 Jan;12(1):147-79
pubmed: 9880479
Sci Rep. 2015 Apr 23;5:9555
pubmed: 25906433

Auteurs

Racheli Ben-Knaz Wakshlak (R)

Institute of Chemistry and the Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 9190401, Israel.

Rami Pedahzur (R)

Department of Environmental Health, Hadassah Academic College, Jerusalem 91010, Israel.

David Avnir (D)

Institute of Chemistry and the Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 9190401, Israel.

Classifications MeSH