CB-EPC and HAEC spreading. Spreading of CB-EPCs and HAECs on either FN-coated Teflon-AF or SMCs at 1 and 24 h. Cell area is greater at 24 h (*p < 0.001) and on FN-coated Teflon-AF compared to SMCs (p < 0.01), and, overall, HAECs are significantly larger than CB-EPCs (#p < 0.05; n = 3, standard error based off of the n = 3). SMC, smooth muscle cell.