TY - JOUR AU - Otón, Eva AU - Geday, Morten Andreas AU - Tone, Caterina Maria AU - Otón, José Manuel AU - Quintana, Xabier PY - 2017/03/31 Y2 - 2024/03/28 TI - Aligning lyotropic liquid crystals with unconventional organic layers JF - Photonics Letters of Poland JA - Photonics Lett. Pol. VL - 9 IS - 1 SE - Articles DO - 10.4302/plp.v9i1.701 UR - https://www.photonics.pl/PLP/index.php/letters/article/view/9-4 SP - pp. 8-10 AB - Lyotropic chromonic liquid crystals (LCLC) are a kind of LCs far less known and more difficult to control than conventional thermotropic nematics. Nevertheless, LCLCs are a preferred option -often the only one- for applications where hydrophilic materials must be employed. Being water-soluble, LCLC can be used in numerous biology related devices, for example in target detection in lab-on-chip devices. However, their properties and procedures to align them are still less explored, with only a very limited number of options available, especially for homeotropic alignment. In this work, novel organic alignment layers and alignment properties have been explored for selected LCLCs. Non-conventional organic alignment layers were tested and new suitable procedures and materials for both homogeneous and homeotropic alignments have been found. <br /> <br /> Full Text: <a class="file" href="/PLP/index.php/letters/article/view/9-4/471" target="_parent">PDF</a> <br /> <br /> <strong>References</strong><ol><li>S.L. Hefinstine, O.D. Lavrentovich, C.J. Woolverton, "Lyotropic liquid crystal as a real-time detector of microbial immune complexes", Lett. Appl. Microbiol. 43, 27 (2006). <a class="file" href="https://doi.org/10.1111/j.1472-765X.2006.01916.x" target="_parent"> CrossRef </a></li><li>M.A. Geday, M. Ca-o-García, J.M. Escolano, E. Otón, J.M. Otón, X. Quintana, Conference on Liquid Crystals CLC'16, Poland (2016).</li><li>M.A. Geday, E. Otón, J.M. Escolano, J.M. Otón, X. Quintana, Patent WO 2015193525 (2015). <a class="file" href="https://encrypted.google.com/patents/WO2015193525A1?cl=es" target="_parent"> DirectLink </a></li><li>Yu.A. Nastishin et al., "Optical characterization of the nematic lyotropic chromonic liquid crystals: Light absorption, birefringence, and scalar order parameter", Phys. Rev. E, 72 (4) 41711 (2005). <a class="file" href="https://doi.org/10.1103/PhysRevE.72.041711" target="_parent"> CrossRef </a></li><li>A. Mcguire, et al., "Orthogonal Orientation of Chromonic Liquid Crystals by Rubbed Polyamide Films", Chem. Phys. Chem. 15 (7) (2014). <a class="file" href="https://doi.org/10.1002/cphc.201301040" target="_parent"> CrossRef </a></li><li>J. Jeong, et al., "Homeotropic Alignment of Lyotropic Chromonic Liquid Crystals Using Noncovalent Interactions", Langmuir 30(10) 2914 (2014). <a class="file" href="https://doi.org/10.1021/la404893t" target="_parent"> CrossRef </a></li><li>J.Y. Kim, H.-Tae Jung, "Macroscopic alignment of chromonic liquid crystals using patterned substrates", Phys. Chem. Chem. Phys. 18, 10362 (2016). <a class="file" href="https://doi.org/10.1039/C5CP07570J" target="_parent"> CrossRef </a></li><li>E. Otón, J.M. Escolano, X. Quintana, J.M. Otón, M.A. Geday, "Aligning lyotropic liquid crystals with silicon oxides", Liq. Cryst. 42 (8) 1069 (2015). <a class="file" href="https://doi.org/10.1080/02678292.2015.1024767" target="_parent"> CrossRef </a></li><li>H.S. Park, et al., "Condensation of Self-Assembled Lyotropic Chromonic Liquid Crystal Sunset Yellow in Aqueous Solutions Crowded with Polyethylene Glycol and Doped with Salt", Langmuir 27, 4164 (2011). <a class="file" href="https://doi.org/10.1021/la200505y" target="_parent"> CrossRef </a></li><li>H.S. Park, et al., "Self-Assembly of Lyotropic Chromonic Liquid Crystal Sunset Yellow and Effects of Ionic Additives", J. Phys. Chem. B 112, 16307 (2008). <a class="file" href="https://doi.org/10.1021/jp804767z" target="_parent"> CrossRef </a></li><li>R Caputo et al., "POLICRYPS: a liquid crystal composed nano/microstructure with a wide range of optical and electro-optical applications", J. Opt. A: Pure Appl. Opt. 11, 024017 (2009). <a class="file" href="https://doi.org/10.1088/1464-4258/11/2/024017" target="_parent"> CrossRef </a></li></ol> ER -