Results 21 to 30 of about 277,839 (301)

Spatially programmed alignment and actuation in printed liquid crystal elastomers. [PDF]

Proc Natl Acad Sci U S A
Significance Aligned liquid crystal elastomers (LCE) are soft materials that exhibit reversible actuation akin to human muscles when thermally cycled above their nematic-to-isotropic transition temperature.
Telles R, Kotikian A, Freychet G, Zhernenkov M, Wąsik P, Yavitt BM, Barrera JL, Cook CC, Pindak R, Davidson EC, Lewis JA.   +10 more
europepmc   +2 more sources

Dynamic self-stiffening in liquid crystal elastomers [PDF]

Nature Communications, 2013
Biological tissues have the remarkable ability to remodel and repair in response to disease, injury and mechanical stresses. Synthetic materials lack the complexity of biological tissues, and man-made materials that respond to external stresses through a permanent increase in stiffness are uncommon. Here we report that polydomain nematic liquid crystal
Agrawal, Aditya, Chipara, Alin C., Shamoo, Yousif, Patra, Prabir K., Carey, Brent J., Ajayan, Pulickel M., Chapman, Walter G., Verduzco, Rafael   +7 more
openaire   +5 more sources

Coaxial Direct Ink Writing of Cholesteric Liquid Crystal Elastomers in 3D Architectures. [PDF]

Adv Mater
Cholesteric liquid crystal elastomers (CLCEs) hold great promise for mechanochromic applications in anti‐counterfeiting, smart textiles, and soft robotics, thanks to the structural color and elasticity. While CLCEs are printed via direct ink writing (DIW)
Ng A, Telles R, Riley KS, Lewis JA, Cook CC, Lee E, Yang S.   +6 more
europepmc   +2 more sources

Multifunctional Ionene Liquid Crystal Elastomers. [PDF]

ACS Appl Mater Interfaces
Incorporating ionic species into the backbone of liquid crystalline elastomers offers a template for tailoring thermomechanical and electromechanical properties. Thermotropic ionene liquid crystalline elastomers (iLCEs) containing imidazolium-based cationic groups are capable of work-dense (∼14 J/kg), large-strain (>30%) actuation at modest ...
Kuzel Z, Clement A, Tabrizi M, AboHussien A, Irla S, Seresht HB, Chun Y, Tristram-Nagle S, Liu Q, Shankar MR.   +9 more
europepmc   +4 more sources

Programmable optical encryption using thickness-controlled stretchable chiral liquid crystal elastomers. [PDF]

Light Sci Appl
The growing demand for cryptographic security encourages the innovation of advanced materials with unique optical properties to secure information using light.
Nam S, Woo S, Park JY, Choi SS.
europepmc   +2 more sources

4D Printing of Freestanding Liquid Crystal Elastomers via Hybrid Additive Manufacturing

Advanced Materials, 2022
Liquid crystal elastomers (LCE) are appealing candidates among active materials for 4D printing, due to their reversible, programmable and rapid actuation capabilities. Recent progress has been made on direct ink writing (DIW) or Digital Light Processing
Xirui Peng, H Jerry Qi
exaly   +2 more sources

Wearable perovskite solar cells by aligned liquid crystal elastomers

Nature Communications, 2023
The bottom interface between perovskite and electron-transporting layer is critical for realizing efficient flexible perovskite solar cells. Here, the authors intercalate liquid crystal elastomer interlayer for aligned mesogenic assembly and achieve ...
Zengqi Huang, Lin Li, Tingqing Wu, Tangyue Xue, Wei Sun, Qi Pan, Huadong Wang, Hongfei Xie, Jimei Chi, Teng Han, Xiaotian Hu, Meng Su, Yiwang Chen, Yanlin Song   +13 more
doaj   +2 more sources

Thermomechanical response of liquid crystal elastomers: role of crosslinker density [PDF]

Materials Research Express
In this work thermomechanical properties of main-chain liquid crystal elastomers (MC-LCEs) with different degrees of crosslinking were investigated, and gradual loss of thermomechanical response was observed on repetitive measurements.
N Derets, V Domenici, A Rešetič, B Zalar   +3 more
doaj   +2 more sources

Mechanochromic Displays Based on Photoswitchable Cholesteric Liquid Crystal Elastomers. [PDF]

Angew Chem Int Ed Engl
Stimuli responsive optical materials are attractive for many areas, from healthcare to art design. However, creating intricate color‐changing patterns for visual information is still a challenge.
de Castro LDC, Lub J, Oliveira ON, Schenning APHJ.   +3 more
europepmc   +2 more sources

When quantum dots meet blue phase liquid crystal elastomers: visualized full-color and mechanically-switchable circularly polarized luminescence

Light: Science & Applications
Polymer-based circularly polarized luminescence (CPL) materials with the advantage of diversified structure, easy fabrication, high thermal stability, and tunable properties have garnered considerable attention.
Shan Li, Yuqi Tang, Qingyan Fan, Ziyuan Li, Xinfang Zhang, Jingxia Wang, Jinbao Guo, Quan Li   +7 more
doaj   +2 more sources