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Tlusty, Tsvi
Living and Soft Matter Theory Group
Research Interests
  • Systems biology, non-equilibrium physics, physical biology, molecular information, proteins

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Boosted molecular mobility during common chemical reactions

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Title
Boosted molecular mobility during common chemical reactions
Author
Wang, HuanPark, MyeonggonDong, RuoyuKim, JunyoungCho, Yoon-KyoungTlusty, TsviGranick, Steve
Issue Date
2020-07
Publisher
AMER ASSOC ADVANCEMENT SCIENCE
Citation
SCIENCE, v.369, no.6503, pp.537 - +
Abstract
Mobility of reactants and nearby solvent is more rapid than Brownian diffusion during several common chemical reactions when the energy release rate exceeds a threshold. Screening a family of 15 organic chemical reactions, we demonstrate the largest boost for catalyzed bimolecular reactions, click chemistry, ring-opening metathesis polymerization, and Sonogashira coupling. Boosted diffusion is also observed but to lesser extent for the uncatalyzed Diels-Alder reaction, but not for substitution reactions S(N)1 and S(N)2 within instrumental resolution. Diffusion coefficient increases as measured by pulsed-field gradient nuclear magnetic resonance, whereas in microfluidics experiments, molecules in reaction gradients migrate "uphill" in the direction of lesser diffusivity. This microscopic consumption of energy by chemical reactions transduced into mechanical motion presents a form of active matter.
URI
https://scholarworks.unist.ac.kr/handle/201301/48087
URL
https://science.sciencemag.org/content/369/6503/537
DOI
10.1126/science.aba8425
ISSN
0036-8075
Appears in Collections:
CHM_Journal Papers
PHY_Journal Papers
BME_Journal Papers
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