geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Reliability of parameters obtained from time resolved fluorescence polarization in macroscopically isotropic liquid crystals and membrane vesicles


, : Reliability of parameters obtained from time resolved fluorescence polarization in macroscopically isotropic liquid crystals and membrane vesicles. Journal of the Chemical Society Faraday Transactions 87(15): 2457-2466

The practical possibility of extracting static and dynamic parameters from fluorescence anisotropy decays of rod-like probes in membrane vesicles and other macroscopically isotropic samples with a locally ordered structure, such as cubic liquid crystal or unoriented polymer liquid crystal is discussed. Particular attention is paid to the obtainment of the fourth-rank order parameter (P4). For monodomain samples, global target analysis of samples at different temperatures has proved helpful. To test if this is true here as well, simulated single-photon-counting intnsnities at various temperatures have been prepared using a mean-field model and then analysed both individually and globally by means of target analysis. The results show that there is little hope of obtaining (P4) from macroscopically unoriented systems, except for some limiting cases. On the other hand, the recovery of (P2) and of the tumbling diffusion coefficient, D.perp., seems to be quite insensitive to the selected model for the anisotropic potential.

US$29.90


Other references

Abdou, A.; Hassam, B., 2015: Tumefaction of the nipple. Pan African Medical Journal 18: 227-227

Bull, V.; Beltrán, M.; Jiggins, C.D.; McMillan, W.Owen.; Bermingham, E.; Mallet, J., 2006: Polyphyly and gene flow between non-sibling Heliconius species. Background: The view that gene flow between related animal species is rare and evolutionarily unimportant largely antedates sensitive molecular techniques. Here we use DNA sequencing to investigate a pair of morphologically and ecologically diverg...

Clodi P.H.; Schnack H.; Wewalka F., 1968: Effect of mozambin metab an hypnotic on liver function in rats and humans abstract from wien med wschr 116 49 1072 1075 dec 1966. Drug Digests 3(1): 8-9, 1967

Farhadi, R.; Yaghobian, M.; Saravi, B.Mohseni., 2015: Clinical findings leading to the diagnosis of sepsis in neonates hospitalized in Imam Khomeini and Bu Ali hospitals, Sari, Iran: 2011-2012. One of the important diseases in neonatal period is sepsis. Clinical sign and symptoms in addition to lab tests are the most important way to accurate diagnosis and prevention of mortality. This study was conducted with the aim of determining the...

Wei, X-Cang.; Yang, D-Di.; Han, X-Rui.; Zhao, Y-An.; Li, Y-Chun.; Zhang, L-Jie.; Wang, J-Ju., 2016: Bioactivity of umbilical cord blood dendritic cells and anti-leukemia effect. We investigated the effect of umbilical cord blood dendritic cells (DCs) on in vitro proliferation, immunophenotypes and levels of homologous cytokine-induced killer cells (CIK) and the toxicity on leukemia cells. Mononuclear cell-induced DC-CIK c...

Cavanagh, J.R.; Gerstein, S.; Peters, E.R.; Mathieu, T.J., 1950: Profile of a probation violator. United States Armed Forces Medical Journal 1(9): 1051-1064

King, M.A.; Koelemay, K.; Zimmerman, J.; Rubinson, L., 2010: Geographical maldistribution of pediatric medical resources in Seattle-King County. Seattle-King County (SKC) Washington is at risk for regional disasters, especially earthquakes. Of 1.8 million residents, >400,000 (22%) are children, a proportion similar to that of the population of the State of Washington (24%) and of the Un...

Juhl, S.Meinich.; Ye, X.; Zhou, P.; Li, Y.; Iyore, E.Omolabake.; Zhang, L.; Jiang, P.; van Goudoever, J.B.; Greisen, G.; Sangild, P.Torp., 2017: Bovine Colostrum For Preterm Infants in the First Days of Life: A Randomized Controlled Pilot Trial. Mother's own milk (MM) is the best nutrition for newborn preterm infants, but is often limited in supply just after birth. Pasteurized human donor milk (DM), and especially preterm infant formula (IF) are less optimal diets than MM. We hypoth...

Lakshmaiah, K.C.; Jacob, L.A.; Aparna, S.; Lokanatha, D.; Saldanha, S.C., 2015: Epigenetic therapy of cancer with histone deacetylase inhibitors. Epigenetics is the study of heritable alterations in gene expression that are not accompanied by the corresponding change in DNA sequence. Three interlinked epigenetic processes regulate gene expression at the level of chromatin, namely DNA methyl...

Hsu C.Y.; Chiang C.H., 1972: The origin of rete cells in heat induced sex reversal of female tadpoles. Anatomical Record 172(2): 455