Temperature-Dependent Dynamic Friction of a Single Human Corneocyte at Nanoscale Contact: An Analytical Approach and Direct Measurement Using Lateral Force Microscopy for Haptic Design Insight.

ABSTRACT: Dynamic friction between human skin and a haptic surface is known to increase with the substrate temperature. When the substrate temperature reaches 60 °C, prolonged sliding contact for just 1 min can cause damage to the outer skin surface. However, the effect of the temperature on dynamic friction at the nanoscale interface between human skin cells and a nanosized probe remains inadequately quantified. This paper presents direct measurements of the dynamic friction of human skin corneocytes as a function of the AFM nanoprobe temperature, using atomic force microscopy (AFM). The lateral force microscopy (LFM) technique with a heated tip was employed to quantify the dynamic friction force of the corneocytes under a constant normal load of 10 nN and standard relative humidity (40% RH). The t

SUBMITTER: Boonpuek P 

PROVIDER: S-EPMC12490009 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature