skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Change in Stripes for Cholesteric Shells via Anchoring in Moderation

Authors:
; ; ; ; ; ; ; ; ;
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1406400
Grant/Contract Number:
FG02-05ER46199
Resource Type:
Journal Article: Published Article
Journal Name:
Physical Review X
Additional Journal Information:
Journal Volume: 7; Journal Issue: 4; Related Information: CHORUS Timestamp: 2017-11-01 16:32:44; Journal ID: ISSN 2160-3308
Publisher:
American Physical Society
Country of Publication:
United States
Language:
English

Citation Formats

Tran, Lisa, Lavrentovich, Maxim O., Durey, Guillaume, Darmon, Alexandre, Haase, Martin F., Li, Ningwei, Lee, Daeyeon, Stebe, Kathleen J., Kamien, Randall D., and Lopez-Leon, Teresa. Change in Stripes for Cholesteric Shells via Anchoring in Moderation. United States: N. p., 2017. Web. doi:10.1103/PhysRevX.7.041029.
Tran, Lisa, Lavrentovich, Maxim O., Durey, Guillaume, Darmon, Alexandre, Haase, Martin F., Li, Ningwei, Lee, Daeyeon, Stebe, Kathleen J., Kamien, Randall D., & Lopez-Leon, Teresa. Change in Stripes for Cholesteric Shells via Anchoring in Moderation. United States. doi:10.1103/PhysRevX.7.041029.
Tran, Lisa, Lavrentovich, Maxim O., Durey, Guillaume, Darmon, Alexandre, Haase, Martin F., Li, Ningwei, Lee, Daeyeon, Stebe, Kathleen J., Kamien, Randall D., and Lopez-Leon, Teresa. Wed . "Change in Stripes for Cholesteric Shells via Anchoring in Moderation". United States. doi:10.1103/PhysRevX.7.041029.
@article{osti_1406400,
title = {Change in Stripes for Cholesteric Shells via Anchoring in Moderation},
author = {Tran, Lisa and Lavrentovich, Maxim O. and Durey, Guillaume and Darmon, Alexandre and Haase, Martin F. and Li, Ningwei and Lee, Daeyeon and Stebe, Kathleen J. and Kamien, Randall D. and Lopez-Leon, Teresa},
abstractNote = {},
doi = {10.1103/PhysRevX.7.041029},
journal = {Physical Review X},
number = 4,
volume = 7,
place = {United States},
year = {Wed Nov 01 00:00:00 EDT 2017},
month = {Wed Nov 01 00:00:00 EDT 2017}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1103/PhysRevX.7.041029

Citation Metrics:
Cited by: 1work
Citation information provided by
Web of Science

Save / Share:
  • This paper describes the spectral broadening of cholesteric liquid crystal film prepared from a blend comprising a cross-linkable liquid crystal polymer and a non-cross-linkable low-molecular-weight liquid crystal. The spectral broadening arises from the formation of gradient pitch across the film thickness. It is shown that both phase-separation and in situ swelling during photopolymerization are important mechanisms for the resulting film structure. The surface anchoring is important to achieve high wavelength- and polarization-selective reflectance.
  • Certain physicochemical characteristics of particles of the cholesteric liquid-crystal dispersions of complexes of double-stranded nucleic acids with rare earth elements have been determined. It is shown for the first time that the binding of the rare earth cations to linear nucleic acid molecules ordered in the structure of particles of the cholesteric liquid crystal dispersions is accompanied not only by amplification of the abnormal band in the circular dichroism spectrum, but also by the disappearance of the characteristic maximum on the X-ray scattering curves for small angles. The (cholesteric 1-cholesteric 2) transition induced by rare earth cations is an examplemore » of the operation of a microscopic machine consisting of spatially ordered nucleic acid molecules. Particles of the cholesteric liquid crystal dispersions of nucleic acid complexes with rare earth elements hold the abnormal optical properties for a long time.« less
  • New X-ray (XMM-Newton) and JHK{sub s} (Observatoire du Mont-Megantic) observations for members of the star cluster Alessi 95, which Turner et al. discovered hosts the classical Cepheid SU Cas, were used in tandem with UCAC3 (proper motion) and Two Micron All Sky Survey observations to determine precise cluster parameters: E(J - H) = 0.08 {+-} 0.02 and d = 405 {+-} 15 pc. The ensuing consensus among cluster, pulsation, and trigonometric distances (d=414{+-}5({sigma}{sub x}-bar){+-}10 ({sigma}) pc) places SU Cas in a select group of nearby fundamental Cepheid calibrators ({delta} Cep, {zeta} Gem). High-resolution X-ray observations may be employed to expandmore » that sample as the data proved pertinent for identifying numerous stars associated with SU Cas. Acquiring X-ray observations of additional fields may foster efforts to refine Cepheid calibrations used to constrain H{sub 0}.« less
  • Here, we describe a new method to measure the activation energy required to remove a strongly-bound membrane-associated protein from a lipid membrane (anchoring energy). It is based on measuring the rate of release of a liposome-bound protein during centrifugation on a sucrose gradient as a function of time and temperature. The method was used to determine anchoring energy for the soluble dengue virus envelope protein (sE) strongly bound to 80:20 POPC:POPG liposomes at pH 5.5. We also measured the binding energy of sE at the same pH for the initial, predominantly reversible, phase of binding to a 70:30 PC:PG lipidmore » bilayer. The anchoring energy (37 +/- 1.7 kcal/mol, 20% PG) was found to be much larger than the binding energy (7.8 +/- 0.3 kcal/mol for 30% PG, or est. 7.0 kcal/mol for 20% PG). This is consistent with data showing that free sE is a monomer at pH 5.5, but assembles into trimers after associating with membranes. But, trimerization alone is insufficient to account for the observed difference in energies, and we conclude that some energy dissipation occurs during the release process. This new method to determine anchoring energy should be useful to understand the complex interactions of integral monotopic proteins and strongly-bound peripheral membrane proteins with lipid membranes.« less