Int. J. Mol. Sci. 2012, 13(11), 14016-14025; doi:10.3390/ijms131114016
Article

Digluconate and Isopropyl Alcohol Biocide Formulation

1email, 2email and 1,* email
Received: 18 September 2012; in revised form: 16 October 2012 / Accepted: 26 October 2012 / Published: 30 October 2012
(This article belongs to the Special Issue Green Biocides)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: Effective surface disinfection is a fundamental infection control strategy within healthcare. This study assessed the antimicrobial efficacy of novel biocide formulations comprising 5% and 2% eucalyptus oil (EO) combined with 2% chlorhexidine digluconate (CHG) and 70% isopropyl alcohol (IPA) contained within a wipe. The efficacy of this novel antimicrobial formulation to remove and eliminate methicillin-resistant Staphylococcus aureus (MRSA), Escherichia coli and Candida albicans from steel surfaces was investigated. Adpression studies of pre-contaminated wipes were also utilised to assess their potential to induce cross-contamination between hard surfaces. Furthermore, the bactericidal nature of the EO-formulation was established in addition to time-kill. The EO-containing formulations demonstrated bactericidal antimicrobial efficacy against all microorganisms and did not induce surface cross-contamination. There was no significant difference (p < 0.05) between the 5% and 2% EO formulations in their ability to remove microorganisms from steel surfaces, however both significantly (p < 0.05) removed more than the control formulations. Microbial biofilms were eliminated within 10 min (p < 0.05) when exposed to the EO formulations. Our novel EO-formulation demonstrated rapid antimicrobial efficacy for potential disinfection and elimination of microbial biofilms from hard surfaces and may therefore be a useful adjunct to current infection control strategies currently employed within healthcare facilities.
Keywords: eucalyptus oil; green biocide; biofilm; surface disinfection; chlorhexidine digluconate; healthcare associated infection
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MDPI and ACS Style

Hendry, E.; Conway, B.; Worthington, T. Digluconate and Isopropyl Alcohol Biocide Formulation. Int. J. Mol. Sci. 2012, 13, 14016-14025.

AMA Style

Hendry E, Conway B, Worthington T. Digluconate and Isopropyl Alcohol Biocide Formulation. International Journal of Molecular Sciences. 2012; 13(11):14016-14025.

Chicago/Turabian Style

Hendry, Emma; Conway, Barbara; Worthington, Tony. 2012. "Digluconate and Isopropyl Alcohol Biocide Formulation." Int. J. Mol. Sci. 13, no. 11: 14016-14025.

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