Fig. 10From: Innovations in biomedical nanoengineering: nanowell array biosensora–d Height and e–h cross-sectional TM-AFM images of the 500-nm patterns of PEGDA575 hydrogel on gold substrates in 10 mm PBS solution. a, e Hydrated state, b, f PEG mixed SAM-modified state, c, g SA-immobilized state, and d, h anti-bHSA-immobilized state. Scale bars: 1 μm [58]Back to article page