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. Author manuscript; available in PMC: 2009 Feb 26.
Published in final edited form as: Acta Biomater. 2005 Jul 25;1(5):511–522. doi: 10.1016/j.actbio.2005.05.004

Fig. 4.

Fig. 4

Surface chemistry and substrate-mediated transfection. SAMs were formed with an increasing density of carboxyl groups (A) and varying hydrophobicity (B). All values are reported as the mean ± sem (**p < 0.01).