Light micrograph of a section of polyurethane containing hollow cellulose fibres (dark circles),the surface of a filter element of a kidney (haemodialysis) machine. Haemodialysis is a filtering operation performed on the blood of persons whose kidneys have failed. Blood removed from an artery is passed through the dialyser on one side of the filter membrane,while a electrolyte solution compatible with blood circulates on the other side. Water & waste products pass through the filter,whose pores prevent the passage of blood cells & proteins. Magnification: x62 at 6x4.5cm size,x36 at 35mm size. Differential Interference Contrast 62:1 | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Michler, Astrid & Hans-Frieder |
Taille de l’image : | 4231 px × 3151 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |