Sentence examples for qac in from inspiring English sources

Widespread use of quaternary ammonium compounds (QAC) in hospitals contributes to the selection of disinfectant-resistant S. aureus[ 12].

Most outbreaks were reported with solutions based on benzalkonium chloride (BAC) which is the most commonly used QAC in surface disinfection.

Members of the small multidrug resistance (SMR) protein family are integral membrane proteins characterized by four α-helical transmembrane strands that confer resistance to a broad range of antiseptics and lipophilic quaternary ammonium compounds (QAC) in bacteria.

Biocide (e.g., alcohol, aldehyde, biguanides (chlorhexidine), quartenary ammonium compounds, zinc, phenolic compounds) resistance has been rarely detected among enterococcal strains, despite its frequent detection in clinical isolates of other Firmicutes, e.g. the emergence of QAC resistance in Methicillin Resistant Staphylococcus aureus due to acquisition of plasmid-borne qac genes [ 132, 133].

Exposure of the mutants to the QAC results in overexpression of an efflux pump, SdeAB [ 24].

After cloths had been submerged in QAC for 5 minutes, the concentration of solution expressed from the 3 types of cloths was reduced by 21% with microfiber cloths and by 50% with cotton and disposable cloths.

In addition, many commercial products based on ammonium quaternary compounds (QAC) are currently used in considerable quantities as antiseptic agents in hospitals, but due to the intrinsic and chronic resistance to QAC, infections with A. baumannii are growing [ 13].

Stable resistance for antiseptics and antibiotics could be obtained for MDRAB when they are exposed step-wise with gradually increasing concentrations of QAC's as seen in Pseudomonas aeuroginosa and Eschericia coli [ 34, 12].

Alcohol-free handrubs based on quaternary ammonium compounds (QAC) may also be found in healthcare settings.

The cadmium and QAC resistance determinants were found in the same 6/10 E. faecalis ST40 strains as well as in 1/10 strainrain but the possible genetic linkage of these resistance determinants will have to be investigated by other methods.

In addition to QAC, members of the SMR protein family also demonstrate the ability to efflux other compounds such as potentially toxic metabolites like nicotine intermediates [ 10] and polyamine compounds like spermidine [ 11] implying that SMR proteins may play a broader role in toxic compound regulation.