Results 281 to 290 of about 1,560,028 (331)

Molecular mechanism of aggregation‐induced emission

Aggregate, 2021
Deep understanding of the inherent luminescence mechanism is essential for the development of aggregation‐induced emission (AIE) materials and applications.
Qian Peng, Z. Shuai
semanticscholar   +1 more source

Multifunctional Properties of Zwitterionic Liquids. Application in Enhanced Oil Recovery and Asphaltene Aggregation Phenomena

, 2015
In this experimental study is investigated the performance of a new class of zwitterionic liquids (ZL) as multifunctional agents with asphaltene inhibition-dispersion activity as well as rock wettability and relative permeability modification properties ...
Luis A. Alcázar-Vara, L. Zamudio-Rivera, Eduardo Buenrostro-González, R. Hernández-Altamirano, V. Mena-Cervantes, J. Ramírez-Pérez   +5 more
semanticscholar   +1 more source

The formalism of fractal aggregation phenomena of colloidal drug delivery systems

Journal of liposome research, 2012
Classical Newtonian Physics and Euclidean Geometry are currently used to describe biological phenomena and the processes of drug formulation, which are characterized by homogeneity and linearity. On the other hand, at the mesoscopic level, the principles
N. Pippa, C. Demetzos, Emmanuel Danezis
semanticscholar   +1 more source

SAXS investigation on aggregation phenomena in supercritical CO2

The European Physical Journal E, 2002
Synchrotron Small-Angle X-Ray scattering (SAXS) measurements on aggregate formation of a Polyvinyl acetate- b-Perfluoro octyl acrylate (PVAc- b-PFOA) block copolymer in supercritical CO(2) are here reported. Experiments were carried out for a series of different thermodynamic conditions, changing the solvent density by profiling both the pressure at ...
Lo Celso F, Triolo A, Triolo F, Donato DI, Steinhart M, Kriechbaum M, Amenitsch H, Triolo R   +7 more
openaire   +5 more sources

Spectroscopic Signature of the Aggregation-Induced Emission Phenomena Caused by Restricted Nonradiative Decay: A Theoretical Proposal

, 2015
It has been suggested that the exotic aggregation-induced emission (AIE) phenomenon was caused by the restriction on the nonradiative decay through intramolecular vibrational/rotational relaxation.
Tian Zhang, Huili Ma, Y. Niu, Wenqiang Li, Dong Wang, Qian Peng, Z. Shuai, W. Liang   +7 more
semanticscholar   +1 more source

Light scattering studies of aggregation phenomena

Physica A: Statistical Mechanics and its Applications, 1995
Abstract We present recent results in the field of colloidal aggregation. We first present static light scattering data of aggregation in intermediate regimes between RLCA and DLCA. In particular, we show that working with dense solutions, new and unexpected features are observed.
D. Asnaghi, M. Giglio, Alberto Vailati, M. Carpineti   +3 more
openaire   +2 more sources

Aggregation Phenomena of Host and Guest upon the Loading of Dendritic Core-Multishell Nanoparticles with Solvatochromic Dyes

, 2012
We systematically assessed the loading behavior of core-multishell nanoparticles (CMS NPs) for the solvatochromic dyes Coumarin 153 and Nile Red and studied the influence of the guest and its concentration on CMS NP aggregation using steady state ...
E. Fleige, Benjamin Ziem, M. Grabolle, R. Haag, U. Resch‐Genger   +4 more
semanticscholar   +1 more source

Numerical Simulation of Diffusive and Aggregation Phenomena in Nonlinear Continuity Equations by Evolving Diffeomorphisms

SIAM Journal on Scientific Computing, 2009
We propose a numerical algorithm for solving nonlinear continuity equations written in Lagrangian coordinates. This transformation is intimately related to variational approaches for the well-posedness of gradient flows of energy functionals with respect
J. Carrillo, J. S. Moll
semanticscholar   +1 more source

Aggregation phenomena and fractal structures

Physica A: Statistical Mechanics and its Applications, 1986
Abstract In disordered aggregation processes fractal structures appear in a natural way. Many of their properties can be characterised in terms of scaling and numerous models have been introduced to describe different physical situations. “Clustering of Clusters” is a model applicable to several growth processes in colloid science and elsewhere.
openaire   +2 more sources

Oxygen Aggregation Phenomena in Silicon

MRS Proceedings, 1987
ABSTRACTOxygen precipitation in Czochralski silicon heated in the range 400–1050°C is reviewed. For T≥525° C, Si02 particles form at the normal diffusion rate and there is generation of self-interstitials. At the lower temperatures, the existence of the interfacial energy causes an apparent increase in the solid solubility as the agglomerates become ...
openaire   +2 more sources