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Table 4 Surface profile: a comparison of the surface profiles of pristine GOx, sonicated (60 min) GOx, SWNT and GOx-SWNT examined as determined by non-contact optical profiling

From: Supramolecular glucose oxidase-SWNT conjugates formed by ultrasonication: effect of tube length, functionalization and processing time

Materials

Sa (Average Roughness), nm

Ratio to blank

Sdr (developed surface area ratio)

Ratio to blank

Pt

0.254

1.00

0.114

1.00

Pt|pGOx

1.928

7.59

0.122

1.07

Pt|sGOx-SWNT

9.408

37.04

0.0025

0.02

Pt|sGOx

10.688

42.08

0.0071

0.06

Pt|SWNT

66.222

260.72

0.0431

0.38