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. Author manuscript; available in PMC: 2015 May 15.
Published in final edited form as: J Mater Chem B. 2013 Jan 14;1(9):1340–1348. doi: 10.1039/C3TB00006K

Figure 8.

Figure 8

Neuron attachment and neurite outgrowth on PEDOT/GO surfaces modified with p20 peptide at 24 h. Representative 20x fluorescent images of β-III-tubulin immunofluorescent reactivity of neurons cultured on (a) bare, (b) physically adsorbed p20 (p20 ADS) and (c) covalently immobilized p20 (p20 COV) PEDOT/GO surfaces. Scale bar represents 50 μm. (d) Neuron density (± SEM, n=3) growing on the p20 modified PEDOT/GO surfaces. Modification with p20 did not result in a change in cell density. (e) Average neurite length (± SEM, n=3) of neurons growing on the p20 modified PEDOT/GO surfaces (* p < 0.05). Covalent immobilization, but not physical adsorption of p20 on the film surface enhanced neurite outgrowth.