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. Author manuscript; available in PMC: 2010 Jun 1.
Published in final edited form as: Nano Lett. 2009 Jun;9(6):2280. doi: 10.1021/nl900437n

Figure 1.

Figure 1

The quenching of ChT’s fluorescence and inhibition of its enzymatic activity by f-MWNTs. The fluorescence quenching expressed as F0/(F-1) and enzyme inhibition (i %) are presented in a library format arranged as two dimensions of diversities of the surface molecules. Steady fluorescence spectra experimental condition: ChT concentration was 2 μM in 25 mM Tris-HCl buffer solution (pH~7.6), and final concentration of f-MWNTs in ChT solutions was 10 μg/mL. Enzyme inhibition experimental condition: final f-MWNTs’ concentration was 40 μg/mL and the ChT concentration was 3.2 μM (i% = (1 − νi/ν0) × 100%, where νi, ν0 represent the enzyme reaction velocity initial and after adding f-MWNT respectively).