Lin Yan-Ting, Kuo Chung-Yu, Shen Yi, Emelyanenko Alexander V, Liu Chun-Yen
Department of Materials Science and Engineering, National Cheng Kung University, Tainan 701401, Taiwan.
Department of Chemical Engineering, National Cheng Kung University, Tainan 701401, Taiwan.
Gels. 2025 May 25;11(6):388. doi: 10.3390/gels11060388.
The micro-phase segregation of two incompatible components on a nanometer scale results in a unique solvent-induced extended anisotropic arrangement. With the addition of a chiral dopant, lyotropic liquid crystals can be induced to adopt a helical structure, forming lyotropic cholesteric liquid crystals capable of reflecting incident light. In this study, to prevent fluid leakage in lyotropic materials, we encapsulated a series of hydrogel-stabilized lyotropic liquid crystals, presenting tunable structural colors visible in all directions, mimicking the color-changing characteristics of living organisms. Hydrogel scaffolds with controllable swelling behaviors were engineered by incorporating crosslinking monomers. To ensure stable integration of lyotropic liquid crystals, high-boiling-point ethylene glycol was employed as a fluid during the fabrication process. This study extensively explores the relationship between tensile force, temperature, and pressure and the color changes in lyotropic liquid crystals (LC). The results indicate that lyotropic LC membranes, stabilized by ethylene glycol and PDMS encapsulation, exhibit long-term stability, rendering them suitable for applications in temperature and pressure sensing. This approach ensures the continuous presence and stability of lyotropic liquid crystals within the hydrogel matrix.
两种不相容组分在纳米尺度上的微相分离导致了一种独特的溶剂诱导的扩展各向异性排列。通过添加手性掺杂剂，可以诱导溶致液晶采用螺旋结构，形成能够反射入射光的溶致胆甾相液晶。在本研究中，为了防止溶致材料中的流体泄漏，我们封装了一系列水凝胶稳定的溶致液晶，呈现出在各个方向都可见的可调结构颜色，模仿了生物体的变色特性。通过加入交联单体设计了具有可控溶胀行为的水凝胶支架。为了确保溶致液晶的稳定整合，在制造过程中使用高沸点的乙二醇作为流体。本研究广泛探讨了拉力、温度和压力与溶致液晶（LC）颜色变化之间的关系。结果表明，由乙二醇和聚二甲基硅氧烷（PDMS）封装稳定的溶致LC膜具有长期稳定性，使其适用于温度和压力传感应用。这种方法确保了溶致液晶在水凝胶基质中的持续存在和稳定性。
Zotero 插件
