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. 2019 Aug 26;116(39):19294–19298. doi: 10.1073/pnas.1911883116

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Copyright © 2019 the Author(s). Published by PNAS.

This open access article is distributed under Creative Commons Attribution-NonCommercial-NoDerivatives License 4.0 (CC BY-NC-ND).

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Fig. 4. — H₂O₂ concentration as a function of different operating conditions. (A) Absorption spectrum of aqueous PTO solution with added H₂O₂. Example microdroplet spectrum in red. (B) Calibration curve at 400 nm from A. The red circle represents the concentration of H₂O₂ generated from aqueous microdroplets acquired from the spectra in A. (C) The effect of varying the nebulizing gas. (D) The effect of dissolving different gases in water. Both C and D are measured with peroxide test strips. Error bars represent 1 SD from 3 measurements.