TY - JOUR
T1 - Inversion of Solvent Migration in Charged Membranes
AU - Boldini, Alain
AU - Porfiri, Maurizio
N1 - Funding Information:
The authors acknowledge financial support from the National Science Foundation under Grant No. OISE-1545857. Authors are grateful to Dr. Matteo Aureli and Dr. Youngsu Cha for useful discussion.
Publisher Copyright:
© 2021 American Physical Society.
PY - 2021/10/8
Y1 - 2021/10/8
N2 - We theoretically demonstrate the possibility of inversion of solvent migration in charged membranes, opposing osmosis. Inversion of solvent migration is ascribed to the finite volume of ions in the solution permeating the membrane, a quantity that has been neglected in the literature so far. We propose a model of the electrochemistry in the proximity of an electrode, illustrating the range of the molar volume of ions that can yield the inversion of solvent migration. This study poses the basis for novel applications in microfluidics, nanofluidics, and electrochemistry, along with new inquiries in biology.
AB - We theoretically demonstrate the possibility of inversion of solvent migration in charged membranes, opposing osmosis. Inversion of solvent migration is ascribed to the finite volume of ions in the solution permeating the membrane, a quantity that has been neglected in the literature so far. We propose a model of the electrochemistry in the proximity of an electrode, illustrating the range of the molar volume of ions that can yield the inversion of solvent migration. This study poses the basis for novel applications in microfluidics, nanofluidics, and electrochemistry, along with new inquiries in biology.
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U2 - 10.1103/PhysRevLett.127.156001
DO - 10.1103/PhysRevLett.127.156001
M3 - Article
C2 - 34678022
AN - SCOPUS:85117180298
VL - 127
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 15
M1 - 156001
ER -