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Table 2 Enzyme activity: presents and compares v max , K M , k cat , k cat /K M (a reflection of the efficiency of the enzyme) and n (the hill parameter) for pristine GOx, sonicated GOx and the various GOx-SWNT-X-L conjugates

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

 

vmax(mM/s)

KM(mM)

kcat(/s)

kcat/KM(/mM·s)

n

Pristine GOx

0.00344 ± 0.0008

9.01 ± 4.1

17.1 ± 2.7

2.06 ± 0.68

1.86 ± 0.08

Sonicated GOx-5 min

0.00916 ± 0.0010

26.5 ± 7.8

48.7 ± 6.1

1.89 ± 0.35

1.37 ± 0.10

Sonicated GOx-60 min

0.00888 ± 0.0009

27.0 ± 1.6

44.8 ± 4.9

1.66 ± 0.082

1.46 ± 0.10

GOx-COOH-medium-5 min

0.00351 ± 0.0009

15.5 ± 1.7

17.7 ± 5.3

1.13 ± 0.22

1.14 ± 0.13

GOx-COOH-medium-60 min

0.00190 ± 0.0008

6.82 ± 1.9

8.86 ± 4.8

1.25 ± 0.40

1.82 ± 0.17

GOx-OH-medium-60 min

0.00115 ± 0.0008

3.11 ± 1.8

5.97 ± 4.8

1.74 ± 0.62

1.57 ± 0.05

GOx-OH-Long-60 min

0.00140 ± 0.0008

3.76 ± 2.0

7.01 ± 4.7

1.77 ± 0.34

2.93 ± 0.06

GOx-Bucky-60 min

0.00322 ± 0.0009

11.0 ± 5.7

16.1 ± 4.6

1.64 ± 0.67

1.40 ± 0.19

  1. (Error bars ± 95% confidence interval).