Park, H. Lee, K. H. Kim, Y. B. Ambade, S. B. Noh, S. H. Eom, W. Hwang, J. Y. Lee, W. J. Huang, J. Han, T. H. 2024-01-19T21:31:43Z 2024-01-19T21:31:43Z 2021-09-05 2018-11 2375-2548 https://pubs.kist.re.kr/handle/201004/120725 Colloidal dispersions with liquid crystallinity hold great promise for fabricating their superstructures. As an example, when graphene oxide (GO) sheets are assembled in the liquid crystalline state, they can turn into ordered macroscopic forms of GO such as fibers via the wet spinning process. Here, we report that by reinforcing inter-sheet interactions, GO liquid crystals (LCs) turn into mechanically robust hydrogels that can be readily drawn into highly aligned fibrillar structures. GO hydrogel fibers with highly aligned sheets (orientation factor, f = 0.71) exhibit more than twice the ionic conductivity compared to those with partially aligned structures (f = 0.01). The hierarchically interconnected two-dimensional nanochannels within these neatly aligned GOLC hydrogel fibers may facilitate controlled transport of charge carriers and could be potentially explored as cables for interconnecting biosystems and/or human-made devices. English AMER ASSOC ADVANCEMENT SCIENCE ORIENTATION MORPHOLOGY EXTRUSION STRENGTH CHANNELS NETWORK POLYMER WATER Dynamic assembly of liquid crystalline graphene oxide gel fibers for ion transport Article 10.1126/sciadv.aau2104 1 SCIENCE ADVANCES, v.4, no.11 SCIENCE ADVANCES 4 11 scie scopus 000452212000035 2-s2.0-85056273397 Multidisciplinary Sciences Science & Technology - Other Topics Article ORIENTATION MORPHOLOGY EXTRUSION STRENGTH CHANNELS NETWORK POLYMER WATER graphene fiber liquid crystal graphene oxide ion transport