Are Hydroxyl Radicals Spontaneously Generated in Unactivated Water Droplets?,Angewandte Chemie International Edition

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Are Hydroxyl Radicals Spontaneously Generated in Unactivated Water Droplets?
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2024-09-06 , DOI: 10.1002/anie.202407433
Casey J Chen ₁ , Evan Williams ₂

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Spontaneous reactions of water in either highly charged nanodrops formed by electrospray ionization, or less highly charged microdroplets formed by a vibrating mesh screen nebulizer were investigated. No evidence for ionized water dimer, nor oxidation products of the radical scavengers caffeine or melatonin was observed over a wide range of droplet size, net charge, and lifetime, indicating that water is stable at the surface of unactivated water droplets.

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