Abstract
The effect of antisepsis depends on the contact time of the microorganism and the antiseptic agent. Our evaluation of quick-drying hand antisepsis agents found that 3 mL of gel type agent required significantly longer than 3 mL of liquid type agent. Therefore, adequate disinfection efficacy using a small application volume can be expected for gel type antisepsis compared with liquid type antisepsis. The disinfection efficacy was examined by several application volumes of 0.2 w/v% chlorhexidine gluconate gel-ethanol (0.2% CHG-GE). As a result, gel type antisepsis with 1 mL suggested equal disinfection efficacy with liquid type antisepsis with 3 mL. In addition, the weight change rate of the ethanol was measured for 16 types of gel and liquid disinfectant. The weight change rate was lower for the gel type antisepsis than the liquid type antisepsis, suggesting a correlation between the viscosities and the weight change.
