Fig. 7From: Challenges of aortic valve tissue culture – maintenance of viability and extracellular matrix in the pulsatile dynamic microphysiological systemVisualization of native pAV tissue resazurin penetration: The dashed indicator bar displays peak penetration depth with high resorufin concentration. A The fluorescing resazurin reduction product resorufin is visible in red. B The DAPI-stained nuclei impose blue-fluorescence (n = 3, representative samples shown, Scale bar: 200 µm)Back to article page