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. Author manuscript; available in PMC: 2019 Mar 28.
Published in final edited form as: Nat Nanotechnol. 2010 Mar 7;5(4):302–309. doi: 10.1038/nnano.2010.24

Figure 4.

Figure 4

Quantitative analysis of results from SWNT sensor array. a-d, Simulation of sensor response (a), rank-ordered sensor response from a (b), sensor response following beta distribution (c) and rank-ordered sensor response from c (d) of 105 H2O2 randomly falling onto 300 sensors (blue), with additional response to local generation (red). After far-field component subtraction from the rank-ordered sensor response (black, -EGF; green, +EGF), the local generation before (blue, star) and after (red, star) EGF stimulation for live (e), fixed (f) A431 cell and live 3T3 cell (g). h, Real-time quenching rate for fixed A431, before (green) and after (blue) EGF stimulation. Sodium azide decreases the quenching, with (red) and without (black) EGF. Extending the singlet oxygen lifetime using D2O increases the quenching (purple). Concentration profiles on log-log scale for different species from solving Reaction 1–8 (i) and from considering the effect of NaN3 when solving the reaction network (j). k, Scheme of the proposed pathway for H2O2 generation.