Two-photon fluorescence microscopy observation of shape changes at the...

Biophysical Journal;  October 1, 1999 ;     700+ words ......during the gel-to-liquid crystalline phase transition. We used the well-characterized excitation...the lipid vesicles, to monitor the phase transition in the GUVs. Even though the vesicles...temperature hysteresis at the main phase transition, we observed different behaviors of...

Direct Visualization of Asymmetric Behavior in Supported Lipid Bilayers at...

Biophysical Journal;  March 1, 2005 ;     700+ words ......microscopy to examine the gel-fluid phase transition behavior in supported phospholipid...2-dipalmitoyl-sn-glycero-3-phosphocholine. The primary gel-fluid phase transition at T^sub m^ occurs through development...reveal the presence of a secondary phase transition in all three ...

Response to selection for the timing of vegetative phase transition in a...

Crop Science;  September 1, 2002 ;     700+ words ......Bongard-Pierce et al., 1996). The most apparent phase transition related trait is the presence of epicuticular...vegetative phase change. Vegetative phase transition occurs at a predictable time in shoot...suggests that the timing of vegetative phase transition has a genetic basis ...

From fireball to galaxies: making late waves.

Science News;  April 29, 1989 ;     700+ words ......on a cosmological scale require a phase transition -- a change in the fabric of space...collaborators suggest that such a phase transition occurred a million or so years after...thought, Schramm says. Allowing the phase transition to be late opens up all sorts of new...

Universe in a drop; cosmology in the liquid laboratory. (phase transition...

Science News;  October 15, 1994 ;     700+ words ......superfluid helium is an example of a phase transition. Assuming that the universe was once...issue concerns what happens during a phase transition. For example, when water freezes slowly...College in London suggested that a rapid phase transition just a tiny fraction of a second ...

Symmetry and the devil.

Journal of Motor Behavior;  December 1, 2004 ;     700+ words ......simplified interpretation of phase transition findings. The authors show that attention to the details of phase transition analysis, as well as consideration...one type of result from the phase transition literature: the abrupt transition...

Calorimetric and spectroscopic studies of the thermotropic phase behavior...

Biophysical Journal;  October 1, 2000 ;     700+ words ......calorimetrically detectable phase transition that is fully reversible, highly...Ld-to-lamellar liquid crystalline (Lj phase transition. However, after low temperature incubation, the L,/La phase transition of dilauroyl phosphatidylserine...

Ehrenfest classification

A Dictionary of Chemistry;      144 words ......Ehrenfest (1880–1933). A first-order phase transition is a phase transition in which the first derivative of the chemical...potential is discontinuous. In a first-order phase transition there is a nonzero change in the value of...

Lipid phase transition temperatures

International News on Fats, Oils and Related Materials : INFORM;  March 1, 2006 ;     154 words ...Lipid phase transition temperatures Michel, N.,A.-S...and B. Pucci, Determination of Phase Transition Temperatures of Lipids by Light...supramolecular systems induced by the phase transition was correlated with the refraction...

Cooperativity and Kinetics of Phase Transitions in Nanopore-Confined...

Biophysical Journal;  February 1, 2005 ;     700+ words ......nature of the gel-to-liquid crystal phase transition of phospholipid bilayers requires...in the cooperative unit number, the phase transition temperature is unaffected. Substrate-support...differences in the gel-to-liquid crystal phase transition when compared with unsupported ...

Transbilayer movement of phospholipids at the main phase transition of...

Biophysical Journal;  December 1, 2002 ;     700+ words ......liposomes was studied at the lipid phase transition of phospholipid membranes. Two NBD-label...movement of both analogs at the lipid phase transition of DPPC (T^sub c^ = 41 deg C) and...for C^sub 6^-NBD-PC. Suppressing the phase transition by the addition of cholesterol, the...

Determination of L(alpha)-H(II) phase transition temperature for...

Biophysical Journal;  May 1, 2002 ;     700+ words ......hexagonal (L^sub alpha^ H^sub II^) phase transition of 1,2-dioleoyl-sn-glycero-3-phosphatidylethanolamine...diffraction was used to study the phase transition of fully-hydrated DOPE to determine...hr, and the rate-dependent apparent phase transition temperatures, T^sub A^(r) were ...

Phase Transition of Sunflower Oil as Affected by the Oxidation Level

JAOCS, Journal of the American Oil Chemists' Society;  July 1, 2008 ;     700+ words ......influence of the oxidation level on the phase transition behavior of sunflower oil was evaluated...Sunflower oil * DSC * X-ray diffraction * Phase transition * Oxidation Introduction Lipid crystallization...lipid polymorphism is lacking. The phase transition and the polymorphisms of ...

Detection of critical densities associated with pinon-juniper woodland...

Ecology;  April 1, 1996 ;     700+ words ......that fit the generalized notion of a phase transition. Theoretical studies of pattern formation...that forage at different rates. Thus, phase transition theory is applicable to the study...precluded by the difficulty of modelling phase transition manifolds (Ouimet and Legendre 1988...

On the Importance of the Phosphocholine Methyl Groups for...

Biophysical Journal;  April 1, 2005 ;     700+ words ......pure PCPE monolayer did not show a phase transition at 22C (in contrast to PSM), but displayed...displayed a rather poorly defined phase transition. When cholesterol was comixed into...the monolayer could be observed. The phase transition from an ordered to a disordered state...