Instant effects of temperature on mechanical properties of single living intact human red blood cell / 中国病理生理杂志

ABSTRACT

AIM: To study the instant effect of circumstance temperature on mechanical properties of single living intact human red blood cell. METHODS: The shape, size, membrane bending elastic modulus and shear elastic modulus of single living intact red blood cell was determined with non-invasive, in situ, real time by employing a static micro-image analyzing and a dynamic micro-image analyzing system. RESULTS: The contact area and diameter of red blood cells were decreased as the temperature increased from 35 ℃ to 43 ℃. The membrane bending elastic modulus and shear elastic modulus of single living intact red blood cell were the least at physiological temperature 37 ℃. CONCLUSION: Red blood cells are easy to carry out their physiological functions such as carrying oxygen to all of the body with the best shape and mechanical deformation at 37 ℃.