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. Author manuscript; available in PMC: 2013 Jul 1.
Published in final edited form as: Biomaterials. 2012 Apr 27;33(21):5267–5277. doi: 10.1016/j.biomaterials.2012.03.074

Fig. 1.

Fig. 1

The isoelectric point (IEP) of the titanium oxide layer was estimated using contact angle measurement as a function of different pH of the drop solution. pH was adjusted by using 1 N NaOH and 1 N HCl.