Boldini, Alain Cha, Youngsu Porfiri, Maurizio 2024-01-19T15:32:43Z 2024-01-19T15:32:43Z 2021-09-02 2021-01-27 0031-9007 https://pubs.kist.re.kr/handle/201004/117501 We demonstrate a novel principle of contactless actuation for ionic membranes in salt solution based on solvation. Actuation is driven by differential swelling of the sides of the membrane, due to comigrating water in the solvation shells of mobile ions. We validate our theory through a series of experiments, which unravel a strong dependence of membrane deflection on the hydration numbers of mobile ions in the external solution and membrane. Our study suggests a critical role of solvation in the chemoelectro-mechanics of natural and artificial selectively permeable membranes. English AMER PHYSICAL SOC ION SOLVATION WATER NAFION DYNAMICS TRANSPORT MEMBRANES HYDRATION ANGLE GELS Solvation-Driven Electrochemical Actuation Article 10.1103/PhysRevLett.126.046001 1 PHYSICAL REVIEW LETTERS, v.126, no.4 PHYSICAL REVIEW LETTERS 126 4 scie scopus 000612213700007 2-s2.0-85100244130 Physics, Multidisciplinary Physics Article ION SOLVATION WATER NAFION DYNAMICS TRANSPORT MEMBRANES HYDRATION ANGLE GELS