US 12,230,486 B2
Ratchet-based ion pumping membrane systems
Shane Ardo, Irvine, CA (US); Gideon Segev, Berkeley, CA (US); Francesca Toma, Berkeley, CA (US); Joel Ager, Berkeley, CA (US); Rylan Kautz, Irvine, CA (US); and David Larson, Berkeley, CA (US)
Assigned to THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, Oakland, CA (US)
Filed by THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, Oakland, CA (US)
Filed on Jun. 19, 2020, as Appl. No. 16/907,076.
Claims priority of provisional application 62/863,761, filed on Jun. 19, 2019.
Prior Publication US 2020/0402782 A1, Dec. 24, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. H01J 41/00 (2006.01); B01D 61/46 (2006.01); C02F 1/469 (2023.01); H01J 41/12 (2006.01); C02F 103/08 (2006.01)
CPC H01J 41/12 (2013.01) [B01D 61/463 (2022.08); C02F 1/4693 (2013.01); B01D 2313/365 (2013.01); C02F 2103/08 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An ion transport structure (110) comprising an ion-permeable layer (112) coupled to at least two contacts (122), wherein the ion transport structure (110) is configured to transport ions across the ion-permeable layer (112) when a spatially asymmetric electric potential distribution is temporally modulated to change electric fields within the ion transport structure, resulting in a ratchet-driven ion pump.