Results 81 to 90 of about 60,233 (206)

Nematic-Isotropic Transition with Quenched Disorder

open access: yes, 2006
Nematic elastomers do not show the discontinuous, first-order, phase transition that the Landau-De Gennes mean field theory predicts for a quadrupolar ordering in 3D.
A. I. Larkin   +7 more
core   +1 more source

Supercritical Fluids: An Innovative Strategy for Drug Development

open access: yesBioengineering
Nanotechnology plays a pivotal role in the biomedical field, especially in the synthesis and regulation of drug particle size. Reducing drug particles to the micron or nanometer scale can enhance bioavailability.
Hui Liu   +4 more
doaj   +1 more source

Thermodynamic Aspects of Supercritical Fluids Processing: Applications of Polymers and Wastes Treatment Aspects thermodynamiques des procédés mettant en oeuvre des fluides supercritiques : applications aux traitements des polymères et des déchets

open access: yesOil & Gas Science and Technology, 2006
Supercritical fluid processes are of increasing interest for many fields : in supercritical fluid separation (petroleum-chemistry separation and purification, food industry) and supercritical fluid chromatography (analytical and preparative separation ...
Beslin P., Cansell F., Rey S.
doaj   +1 more source

Supercritical CO2 Activation Enables an Exceptional Methanol Synthesis Activity Over the Industrial Cu/ZnO/Al2O3 Catalyst

open access: yesAdvanced Science
The ternary Cu/ZnO/Al2O3 catalyst is widely used in the industry for renewable methanol synthesis. The tenuous trade‐off between the strong metal–support interaction (SMSI)‐induced Cu–ZnOx interface and the accessible Cu surface strongly affects the ...
Yannan Zhou   +5 more
doaj   +1 more source

Isotropic-Nematic Transition in Liquid-Crystalline Elastomers

open access: yes, 2002
In liquid-crystalline elastomers, the nematic order parameter and the induced strain vary smoothly across the isotropic-nematic transition, without the expected first-order discontinuity.
B. R. Ratna   +7 more
core   +1 more source

Synthesis of Silver Colloids: Experiment and Computational Model

open access: yes, 2008
We summarize our recent results that model the formation of uniform spherical silver colloids prepared by mixing iso-ascorbic acid and silver-amine complex solutions in the absence of dispersants.
Goia, Dan V.   +3 more
core   +1 more source

Study on the Synthesis of Nano Zinc Oxide Particles under Supercritical Hydrothermal Conditions

open access: yesNanomaterials
The supercritical hydrothermal synthesis of nanomaterials has gained significant attention due to its straightforward operation and the excellent performance of the resulting products. In this study, the supercritical hydrothermal method was used with Zn(
Panpan Sun, Zhaobin Lv, Chuanjiang Sun
doaj   +1 more source

Methods of synthesis of nanoparticles and their dimensionsensitive physical parameters

open access: yesТонкие химические технологии, 2010
The varieties of the methods of nanoparicles synthesis are discussed in this review. Wet and dry chemistry processes, pulse sonoelectrochemistry, methods with use of supercritical CO2, and far from equilibrium systems of two liquids are considered and ...
L. I. Boguslavsky
doaj  

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