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. Author manuscript; available in PMC: 2015 Nov 7.
Published in final edited form as: Analyst. 2014 Nov 7;139(21):5560–5567. doi: 10.1039/c4an01147c

Figure 2.

Figure 2

Adsorption of GOx (1 mg·mL-1, pH = 6.0) onto either a Si/SiO2 (orange curve) or a Si/SiO2/APTES (blue curve) substrate. The arrows show the time which the enzyme solution impinging on the substrate was replaced by the buffer solution.