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PMC full text:
Nat Chem. Author manuscript; available in PMC 2010 Jul 14.
Published in final edited form as:
Nat Chem. 2009 May 31; 1: 316–321.
doi:  10.1038/nchem.240

Figure 5

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Conversion of 4 into 7 enables the detection of ozone in air samples

a,b, Dyes (500 nmol) 4 (a) and 1 (b) were absorbed onto pieces (11 × 9 cm) of adsorbent paper and used to detect ozone in indoor air for eight hours. c,d, Solutions of 4 (12.5 µM) in MeOH and pH 7 buffer (5:95) were exposed to ambient air in various locations (A–D) throughout a city and ozone assays performed. Ozone was measured in outdoor air for eight hours (c), as was its specificity against other air pollutants (d) (acid concentration, 250 µM; metal concentration, 100 nM). Experiments were performed in triplicate and error bars were determined from the mean and standard deviation (Prism 5.0a, GraphPad Software). For experimental details, see Supplementary Information.

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