Mechanisms of membrane flux regulation in response to (A) pH and (B) temperature changes, enabled by thin films of pMAA-co-EGDMA and pDMAEMA-co-EGDA respectively. (C) pH-responsive flux changes of BSA through filtration membranes coated with pMAA-co-EGDMA.112 Reprinted from Smart membranes with pH-responsive control of macromolecule permeability, 537, Ali Tufani, Gozde Ozaydin-Ince, 255-262, 2017, with permission from Elsevier. (D) Swelling ratios of pDMAEMA-co-EGDA hydrogels with different compositions (r indicates the molar ratio of EGDA to DMAEMA) under different temperatures.60 Reproduced from Ref. 60 with permission from The Royal Society of Chemistry.