NewslettersEndothelial Cell News Replicating Endothelial Shear Stress in Organ-on-A-Chip for Predictive Hypericin Photodynamic Efficiency By Noshin Noorjahan - January 23, 2023 0 Researchers developed a microchip that generated a constant shear stress force to investigate the efficiency of photodynamic therapy using hypericin on human umbilical vein endothelial cells. [International Journal of Pharmaceutics] Abstract