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Table 4 Conditions used in the modeled environmental experiment testing

From: Evaluation of a novel surface-coating formulation with time-extended antimicrobial activity for healthcare environment disinfection

Objective

Contact time (minutes)

Coating age (days)

Tested strains

Tested surfaces

CFU inocula used

Product tested

Efficacy testing on three types of OxiLast-coated surfaces

60

0, 1, 2, 3, 5*, 6**, 7

MRSA ATCC 33591, K. pneumoniae ATCC BAA-1705

20 cm2 on bedrail, cabinet, and windowsill; 2 tests 1 control each

106 for all

OxiLast™

Efficacy testing of routine chlorine-based product (1000 ppm) on three types of surfaces.

60

0, 1 (repeated twice each)

MRSA ATCC 33591, K. pneumoniae ATCC BAA-1705

20 cm2 on bedrail, cabinet, and windowsill; 2 tests 1 control each

106 for all

Klorkleen®

Efficacy testing of OxiLast™ against clinical isolates

60

0, 1, 3

Clinical isolates of MRSA and K. pneumoniae

20 cm2 on bedrail and cabinet; 2 tests 1 control each

106 for all

OxiLast™

Efficacy testing of OxiLast™ in presence of organic compounds***

60

0, 1, 3

MRSA ATCC 33,591, K. pneumoniae ATCC BAA-1705

20 cm2 on bedrail and cabinet; 2 tests 1 control each

106 for all

OxiLast™

  1. * Bedrails and windowsill only; ** Bedrails and cabinets only; *** ATS (artificial test soil 3 mg/ml). Each control consisted of an untreated surface with the same inoculation regime of the test areas