Fig. 2From: Electroanalytical biosensor based on GOx/FCA/PEG-modified SWCNT electrode for determination of glucoseOptical and SEM images of three SWCNT electrode-based biosensor patterned by O2 plasma treatment. The left and right SEM images were obtained from patterned (gray) and etched (transparent) SWCNT areas on a PET substrateBack to article page