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. Author manuscript; available in PMC: 2016 Jun 23.
Published in final edited form as: J Biomed Mater Res A. 2013 Jun 25;102(5):1486–1499. doi: 10.1002/jbm.a.34799

Figure 1.

Figure 1

Microgel coatings applied to the surface of the neural electrode. (a) Chemical structure of the microgel contains pNIPAm, PEG, and acrylic acid. (b) Photo of the neural electrode (left) with AFM scans for uncoated, PDADMAC+APTMS only, and multi-layer microgel-coated surfaces. The microgel coating application was further verified using X-ray electron spectroscopy to verify differences between the uncoated and microgel-coated (c) surfaces with the absence of iridium 4f peak and prominent C1s and N1s peaks on the microgel-coated sample.