Results 31 to 40 of about 44,923 (293)

Shear Induced Structures in Lamellar Systems [PDF]

Progress of Theoretical Physics Supplement, 2008
The shear induced size evolution of multilamellar vesicles (MLV, “Onions”) of a non-ionic surfactant system composed of 40wt% C10E3 in D2O was investigated with the help of Rheo-Small Angle Neutron Scattering (SANS), Rheo-Small Angle Light Scattering (SALS) and optical microscopy. We will especially discuss shear quench experiments, i.e. when the shear
Sven Koschoreck, Shuji Fujii, Walter Richtering   +2 more
openaire   +1 more source

Fluorescent and Catalytic Properties of a 2D Lamellar Zn Metal–Organic Framework with sql Network Structure

Molecules, 2023
A two-dimensional (2D) lamellar Zn metal–organic framework (Zn-MOF, 1) with a fluorescent 1,6-di(pyridin-3-yl)pyrene (3-DPPy) and 1,4-benzenedicarboxylate (BDC2−) bridging linkers was prepared and structurally characterized. The chemical formula of 1 is [
Chaewon Shin, Jongseo Kim, Seong Huh
doaj   +1 more source

A Lamellar Zn-Based Coordination Polymer Showing Increasing Photoluminescence upon Dehydration

Molecules, 2023
The present study reports on a 2D lamellar coordination polymer (CP) of {[Zn(µ3-pmdc)(H2O)]·H2O}n formula (pmdc = pyrimidine-4,6-dicarboxylate). This CP is synthesized under an appropriate acid-base reaction between the gently mortared reagents in the ...
Oier Pajuelo-Corral, Jose Angel García, Oscar Castillo, Antonio Luque, Claudio Mendicute-Fierro, Antonio Rodríguez-Diéguez, Javier Cepeda   +6 more
doaj   +1 more source

Linear viscoelasticity of the lamellar liquid crystalline phase for a heptane/nonionic surfactant/water system

Grasas y Aceites, 2000
A linear viscoelastic characterization by small amplitude oscillatory shear tests was carried out for heptane/polyoxyethylene glycol nonylphenyl ether (EOa=10)/water system exhibiting a lamellar liquid crystalline structure.
F. Cordobés, C. Gallegos
doaj   +1 more source

Freezing and melting water in lamellar structures

Biophysical Journal, 1994
The manner in which ice forms in lamellar suspensions of dielaidoylphosphatidylethanolamine, dielaidoylphosphatidylcholine, and dioleoylphosphatidylcholine in water depends strongly on the water fraction. For weight fractions between 15 and 9%, the freezing and melting temperatures are significantly depressed below 0 degree C.
Gleeson, J.T., Erramilli, S., Gruner, S.M.   +2 more
openaire   +2 more sources

Enzymatic degradation of biopolymers in amorphous and molten states: mechanisms and applications

FEBS Open Bio, EarlyView.
This review explains how polymer morphology and thermal state shape enzymatic degradation pathways, comparing amorphous and molten biopolymer structures. By integrating structure–reactivity principles with insights from thermodynamics and enzyme engineering, it highlights mechanisms that enable efficient polymer breakdown.
Anđela Pustak, Aleksandra Maršavelski
wiley   +1 more source

Self‐Assembly of Lamellae‐in‐Lamellae by Double‐Tail Cationic Surfactants

Advanced Science
The molecular structures of surfactants play a pivotal role in influencing their self‐assembly behaviors. In this work, using simulations and experiments, an unconventional hierarchically layered structure in the didodecyldimethylammonium bromide (DDAB ...
Zhixuan Zhong, Guanqun Du, Linbo Ma, Yilin Wang, Jian Jiang   +4 more
doaj   +1 more source

Laser Metal Deposited Ti4822 Hollow Pipe: Experimental and Computational Modelling Study

Advanced Engineering Materials, EarlyView.
Laser metal deposition (LMD) of a crack‐free built Ti4822 alloys is challenging. This article reports outstanding characteristics of a hollow pipe that is built with LMD technology when a predicted, nontransformation substrate temperature of 800 °C is used.
Sadiq A. Raji, Monnamme Tlotleng, Samuel Skhosane, Lehlogonolo R. Kanyane, Abimbola P. I. Popoola, Sisa L. Pityana   +5 more
wiley   +1 more source

Lamellar Gels: Structural Peculiarities

Ukrainian Journal of Physics
The possibility of the existence of lamellar gels has been formulated using the topological approach. The structural peculiarity of the gels of this type consists in that their framework is formed by lamellae. A model of an ideal lamellar gel has been proposed, and its structural parameters have been calculated. The type of defects that can emerge in a
Zabashta, Yu.F., Kovalchuk, V.I., Bulavin, L.A.   +2 more
openaire   +2 more sources

Fibrous components and lamellar structures in cementum.

Nihon Shishubyo Gakkai Kaishi (Journal of the Japanese Society of Periodontology), 1990
The purpose of this study was to clarify the relationship between the lamellar structure and the fibrous components of cementum. Freeze-fracture specimens and ground sections of the human molar cementum were treated with acid- and/or alkaline-solutions, then examined by scanning electron microscopy.
A, Matsuo, T, Yajima
openaire   +3 more sources