Zobrazeno 1 - 10
of 328
pro vyhledávání: '"Robert J. Twieg"'
Autor:
Veridiana G. Guimarães, Anastasiia Svanidze, Tianyi Guo, Pawan Nepal, Robert J. Twieg, Peter Palffy-Muhoray, Hiroshi Yokoyama
Publikováno v:
Crystals, Vol 11, Iss 7, p 785 (2021)
Cholesteric liquid crystals are frequently produced by the addition of chiral dopants to achiral nematic hosts. We report here the synthesis and performance of chiral dopants obtained from bio-betulin produced by a fermentation process. An important
Externí odkaz:
https://doaj.org/article/b6b49cd9c5424b859b91779a8b93550a
Autor:
Huaizhe Yu, Kunlun Wang, Tibor Szilvási, Karthik Nayani, Nanqi Bao, Robert J. Twieg, Manos Mavrikakis, Nicholas L. Abbott
Publikováno v:
Materials, Vol 14, Iss 5, p 1055 (2021)
Soft matter that undergoes programmed macroscopic responses to molecular analytes has potential utility in a range of health and safety-related contexts. In this study, we report the design of a nematic liquid crystal (LC) composition that forms thro
Externí odkaz:
https://doaj.org/article/6ddca7d6b46349f69008636981ed3f22
Autor:
Rony Saha, Pawan Nepal, Chenrun Feng, Md Sakhawat Hossain, Masafumi Fukuto, Ruipeng Li, James T. Gleeson, Samuel Sprunt, Robert J. Twieg, Antal Jákli
Publikováno v:
Liquid Crystals. 49:1784-1796
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8810ddf6c1e76d9fa92bca74512e11df
https://doi.org/10.1080/02678292.2022.2069297
https://doi.org/10.1080/02678292.2022.2069297
Autor:
Mitchell Powers, Brett Ellman, Sonya K. Adas, Kayla Ivey, Robert J. Twieg, Zhe Li, Scott D. Bunge
Publikováno v:
Materials Advances. 3:534-546
We present a versatile synthesis method capable of creating triphenylene discotic liquids with enhanced control of the number and type of tails. The compounds obtained from this method include a discotic liquid crystal with unusually short methoxy ta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab760d3d4342c1b879ce9960332551e2
https://doi.org/10.1039/d1ma00606a
https://doi.org/10.1039/d1ma00606a
Publikováno v:
Molecular Crystals and Liquid Crystals. 732:64-75
We present the synthesis and liquid crystalline properties of four sets of diphenyl-1,3,4-oxadiazole based compounds (Sets 1–4). The influence of side chain and lateral fluorinations is discussed. ...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::22ab404ac25591a7c221dd057afa90a4
https://doi.org/10.1080/15421406.2021.1980711
https://doi.org/10.1080/15421406.2021.1980711
Autor:
Kelum Perera, Rony Saha, Pawan Nepal, Rohan Dharmarathna, Md Sakhawat Hossain, Md Mostafa, Alex Adaka, Ronan Waroquet, Robert J. Twieg, Antal Jákli
The isotropic to ferroelectric nematic liquid transition had been theoretically studied over one hundred years ago, but its experimental studies are rare. Here we present polarizing optical microscopy studies and theoretical considerations of ferroel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0527502969fae4e64c0323312260874e
http://arxiv.org/abs/2209.09363
http://arxiv.org/abs/2209.09363
Publikováno v:
Liquid Crystals. 48:1758-1768
Four series of 1,3,4-thiadiazole based compounds (Series I–IV) were synthesised, and their liquid crystalline properties were studied. Series I compounds are two tailed biphenylyl-1,3,4-thiadiazole...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2b3dca678907bebf398e10e7b41e9734
https://doi.org/10.1080/02678292.2021.1900432
https://doi.org/10.1080/02678292.2021.1900432
Autor:
Tibor Szilvási, Nanqi Bao, Manos Mavrikakis, Robert J. Twieg, Huaizhe Yu, Jake I. Gold, Nicholas L. Abbott
Publikováno v:
Journal of Materials Chemistry C. 9:6507-6517
Computational methods can provide first-principles insights into the thermochemistry and kinetics of reactions at interfaces, but this capability has not been widely leveraged to design soft materials that respond selectively to chemical species. Her
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::19ce003a136dcbb89a13096bf9434303
https://doi.org/10.1039/d1tc00544h
https://doi.org/10.1039/d1tc00544h
Autor:
Kenneth D. Singer, William Christopherson, Robert J. Twieg, Michael Crescimanno, Samuel Schwab
Publikováno v:
Physical Review B. 104
The nonlinear optical response of organic polaritonic matter has received increasing attention due to their enhanced and controllable nonlinear response and their potential for novel optical devices such as compact photon sources and optical and quan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::936b21854df580596c017062a4be9003
https://doi.org/10.1103/physrevb.104.085307
https://doi.org/10.1103/physrevb.104.085307
Autor:
Hiroshi Yokoyama, Anastasiia Svanidze, Peter Palffy-Muhoray, Veridiana G. Guimarães, Pawan Nepal, Robert J. Twieg, Tianyi Guo
Publikováno v:
Crystals
Volume 11
Issue 7
Crystals, Vol 11, Iss 785, p 785 (2021)
Volume 11
Issue 7
Crystals, Vol 11, Iss 785, p 785 (2021)
Cholesteric liquid crystals are frequently produced by the addition of chiral dopants to achiral nematic hosts. We report here the synthesis and performance of chiral dopants obtained from bio-betulin produced by a fermentation process. An important
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5e5ec7bf10d7238992a793dd039f1721