Zobrazeno 1 - 10
of 53
pro vyhledávání: '"Michi Nakata"'
Autor:
Fabio Giavazzi, Michi Nakata, Marco Buscaglia, Tommaso Bellini, Noel A. Clark, Roberto Cerbino, Giuliano Zanchetta
Publikováno v:
Proceedings of the National Academy of Sciences. 107:17497-17502
Concentrated solutions of duplex-forming DNA oligomers organize into various mesophases among which is the nematic ( N ∗ ), which exhibits a macroscopic chiral helical precession of molecular orientation because of the chirality of the DNA molecule
Autor:
Darren R. Link, Jürgen P. Rabe, David M. Walba, Matthew A. Glaser, Gerd Heppke, Michi Nakata, Daniel Krüerke, Eva Korblova, Dong Chen, Noel A. Clark, Joseph A. Zasadzinski, Hannes Jung, Wolfgang Stocker, Michael-Scott Heberling, Loren E. Hough, Christopher D. Jones
Publikováno v:
Science. 325:456-460
Assembling achiral molecules typically generates achiral domains. However, odd things can happen when the molecules are banana-or boomerang-shaped—their cores can twist out of plain to form left- or right-handed helices, which can then pack into ch
Autor:
Tommaso Bellini, Christopher D. Jones, Michi Nakata, Giuliano Zanchetta, Noel A. Clark, Brandon D. Chapman, Ron Pindak, Julie O. Cross
Publikováno v:
Science. 318:1276-1279
Short complementary B-form DNA oligomers, 6 to 20 base pairs in length, are found to exhibit nematic and columnar liquid crystal phases, even though such duplexes lack the shape anisotropy required for liquid crystal ordering. Structural study shows
Autor:
Quan Li, Langfang Li, Brandon Chapman, Satyendra Kumar, Ron Pindak, Michi Nakata, Shin-Woong Kang, Julie O. Cross
Publikováno v:
Chemistry of Materials. 19:5657-5663
Porphyrin-based materials are prime candidates for solar energy harvesting applications. New compounds incorporating the porphyrin core, which exhibit the columnar liquid crystal (LC) phase, were synthesized as they offer a route to obtaining defect-
Autor:
Christopher D. Jones, Noel A. Clark, David M. Walba, Michi Nakata, Hong Yang, Richard K. Shoemaker, Renfan Shao, Patrick Keller, David Coleman
Publikováno v:
Chemistry of Materials. 18:4576-4584
The synthesis and characterization of a main-chain smectic liquid-crystalline polymer system designed for development into electromechanical actuators is described. The chemical structure is chosen to provide a large electroclinic effect in the SmA*
Publikováno v:
Liquid Crystals. 32:717-726
The local layer structure of surface stabilized electroclinic liquid crystals has been analysed by time‐resolved synchrotron X‐ray microdiffraction. At a low applied electric field, the initial bookshelf structure starts to respond above a thresh
Autor:
Jirakorn Thisayukta, Michi Nakata, Hiroko Niwano, Hideo Takezoe, Darren R. Link, Junji Watanabe
Publikováno v:
The Journal of Physical Chemistry B. 108:14889-14896
The correlation between chirality of the B2 and B4 phases was examined by measuring the circular dichroism (CD) in the classic bent-core molecule, P-12-O-PIMB, which shows a direct B2 to B4 phase transition on cooling. Among the various structures fo
Autor:
Yoichi Takanishi, Ken Ishikawa, Fumito Araoka, Hideo Takezoe, Michi Nakata, Kazuya Kumazawa, Junji Watanabe
Publikováno v:
J. of Mater. Chem. 14 (2004) 157-164.. 14:157-164
Two chiral bent-core mesogens (P7-O-PIMB5*, P6-O-PIMB4*) have been synthesized in addition to P8-O-PIMB6*, that is known to exhibit a stable ferroelectric phase, and their phase structures studied in order to clarify the effect of the interlayer ster
Publikováno v:
Ferroelectrics. 311:41-50
The local layer of the antiferroelectric liquid crystal has been investigated as a function of the temperature near the SmA to SmC A * phase transition by synchrotron X-ray microbeam diffraction. The stripe texture in the SmA phase well above the pha
Autor:
Eva Korblova, Richard K. Shoemaker, Lei Xiao, Noel A. Clark, David Coleman, Michi Nakata, David M. Walba, Renfan Shao, Patrick Keller, Darren R. Link
Publikováno v:
Ferroelectrics. 309:77-82
We report the synthesis of organic polymer optical fibers with the following interesting supermolecular stereochemistry: 1) A thermodynamically stable macroscopic polar axis oriented approximately normal to the fiber axis; and 2) A nonlinear optical