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. Author manuscript; available in PMC: 2019 Aug 28.
Published in final edited form as: Anal Methods. 2018 Jul 30;10(32):4000–4006. doi: 10.1039/C8AY01271G

Fig. 3.

Fig. 3

(A) Disposable pyrolytic graphite sheet with microwells formed by hydrophobic toner print. Inset showing sandwich immunoassay on a single wall carbon nanotube forest (SWCNT). (B) SEM image showing hydrophobic boundary formed by printer toner and (B) Inside of a microwell on a PGS. (D-F) tapping mode AFM images of unmodified PGS, SWCNT forest in a PGS microwell, and PGS and Ab1 immobilized in a PGS microwell, respectively.