Heparin ionically linked to glass

Abstract

Heparin has been ionically bonded to glass surfaces. The heparin coating resists fluid shear stresses as high as 10⁴ dynes/cm² at 30°C for periods in excess of 300 hr, and 1000 W of ultrasonic cleaning at 62°C for periods of more than 45 min. It also prevents the clotting of human blood.