Comment on “Boosted molecular mobility during common chemical reactions”

Günther, Jan-Philipp; Fillbrook, Lucy L.; MacDonald, Thomas S.C.; Majer, Günter; Price, William S.; Fischer, Peer; Beves E., Jonathan

doi:10.1126/science.abe8322

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Comment on “Boosted molecular mobility during common chemical reactions”

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Fischer, Peer
Max Planck Institute for Medical Research, Max Planck Society;

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Citation

Günther, J.-P., Fillbrook, L. L., MacDonald, T. S., Majer, G., Price, W. S., Fischer, P., et al. (2021). Comment on “Boosted molecular mobility during common chemical reactions”. Science, 371(6526): eabe8322, pp. 1-5. doi:10.1126/science.abe8322.

Cite as: https://hdl.handle.net/21.11116/0000-000B-398F-5

Abstract

The apparent "boosted mobility" observed by Wang et al (Reports, 31 July 2020, p. 537) is the result of a known artifact. When signal intensities are changing during a nuclear magnetic resonance (NMR) diffusion measurement for reasons other than diffusion, the use of monotonically increasing gradient amplitudes produces erroneous diffusion coefficients. We show that no boosted molecular mobility is observed when shuffled gradient amplitudes are applied.