Zobrazeno 1 - 10
of 221
pro vyhledávání: '"Helen F, Gleeson"'
Autor:
Calum J. Gibb, Jordan Hobbs, Diana I. Nikolova, Thomas Raistrick, Stuart R. Berrow, Alenka Mertelj, Natan Osterman, Nerea Sebastián, Helen F. Gleeson, Richard. J. Mandle
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-9 (2024)
Abstract Spontaneous symmetry breaking and emergent polar order are each of fundamental importance to a range of scientific disciplines, as well as generating rich phase behaviour in liquid crystals (LCs). Here, we show the union of these phenomena t
Externí odkaz:
https://doaj.org/article/a9a5a5d9346f4964835b11897ab9c3ca
Publikováno v:
Polymers, Vol 16, Iss 14, p 1957 (2024)
Auxetics are materials displaying a negative Poisson’s ratio, i.e., getting thicker in one or both transverse axes when subject to strain. In 2018, liquid crystal elastomers (LCEs) displaying auxetic behaviour, achieved via a biaxial reorientation,
Externí odkaz:
https://doaj.org/article/8e0be06d972f4f3c9e717c794c63dcba
Autor:
Zhenming Wang, Thomas Raistrick, Aidan Street, Matthew Reynolds, Yanjun Liu, Helen F. Gleeson
Publikováno v:
Materials, Vol 16, Iss 1, p 393 (2022)
Auxetic materials exhibit a negative Poisson’s ratio, i.e., they become thicker rather than thinner in at least one dimension when strained. Recently, a nematic liquid crystal elastomer (LCE) was shown to be the first synthetic auxetic material at
Externí odkaz:
https://doaj.org/article/a2819ce353e7418e8174fda2a5bd2b4c
Publikováno v:
Langmuir. 39:1611-1618
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::16b53902f7c30044404119bf0e93fc1b
https://doi.org/10.1021/acs.langmuir.2c03040
https://doi.org/10.1021/acs.langmuir.2c03040
Autor:
Shikha Aery, Adele Parry, Andrea Araiza-Calahorra, Stephen D. Evans, Helen F. Gleeson, Abhijit Dan, Anwesha Sarkar
Publikováno v:
Journal of Materials Chemistry C. 11:5831-5845
The plant-based polymer and microgel act as effective emulsifiers for liquid crystal (LC)-in-water emulsions where microgels provide better storage stability and response to chemical and biological analytes with 5× lower detection limit than the pro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::df01f861da415a614a73749142bb3b5d
https://doi.org/10.1039/d3tc00598d
https://doi.org/10.1039/d3tc00598d
Publikováno v:
Molecules, Vol 26, Iss 23, p 7313 (2021)
Liquid Crystal Elastomers (LCEs) combine the anisotropic ordering of liquid crystals with the elastic properties of elastomers, providing unique physical properties, such as stimuli responsiveness and a recently discovered molecular auxetic response.
Externí odkaz:
https://doaj.org/article/fdc74deb00dd4229bfe29ed1981b0088
Publikováno v:
Physical Review Research, Vol 3, Iss 2, p 023191 (2021)
Synthetic materials that are auxetic (negative Poisson's ratio) at a molecular level have long been sought after. An auxetic liquid crystal elastomer (LCE) was reported recently, but the physical origin of the behavior has remained unclear. Here, we
Externí odkaz:
https://doaj.org/article/cdd73b859e454df8874b82a3d4cd2332
Autor:
Mariam Hussain, Ethan I. L. Jull, Richard J. Mandle, Thomas Raistrick, Peter J. Hine, Helen F. Gleeson
Publikováno v:
Nanomaterials, Vol 11, Iss 3, p 813 (2021)
The term liquid crystal elastomer (LCE) describes a class of materials that combine the elastic entropy behaviour associated with conventional elastomers with the stimuli responsive properties of anisotropic liquid crystals. LCEs consequently exhibit
Externí odkaz:
https://doaj.org/article/2b58fce9e1ee4707b0230261a7434b75
Autor:
Charles Rosenblatt, Helen F. Gleeson
Publikováno v:
Crystals, Vol 11, Iss 1, p 52 (2021)
The field of liquid crystals is constantly reinventing itself, evolving from measurements of elastic constants and devices such as the simple nematic twist cell in the 1970s to topological defects, nanoparticle inclusions, and smart sensors today [..
Externí odkaz:
https://doaj.org/article/262bf23cb67244e6a368e5351f46b7cb
Autor:
Peng Bao, Daniel A. Paterson, Sally A. Peyman, J. Cliff Jones, Jonathan A. T. Sandoe, Richard J. Bushby, Stephen D. Evans, Helen F. Gleeson
Publikováno v:
Crystals, Vol 11, Iss 1, p 65 (2021)
The director fields adopted by nematic liquid crystals (LCs) that are confined by the surface to form long, thin droplets are investigated using polarising optical microscopy. Samples are produced by de-wetting of the LC on a surface patterned with a
Externí odkaz:
https://doaj.org/article/cf91c5c548974b04adc8055893b507e1