Results 61 to 70 of about 305,537 (405)
Configurational and energy landscape in one-dimensional Coulomb systems
, 2016 We study a one dimensional Coulomb system, where two charged colloids are neutralized by a collection of point counterions, with global neutrality. Temperature being given, two situations are addressed: the colloids are either kept at fixed positions ...
Tellez, Gabriel +2 more
core +1 more source
Fluid-fluid demixing curves for colloid-polymer mixtures in a random colloidal matrix [PDF]
, 2011 We study fluid-fluid phase separation in a colloid-polymer mixture adsorbed in a colloidal porous matrix close to the \theta -point. For this purpose we consider the Asakura-Oosawa model in the presence of a quenched matrix of colloidal hard spheres. We study the dependence of the demixing curve on the parameters that characterize the quenched matrix ...
arxiv +1 more source
Flocking ferromagnetic colloids
Science Advances, 2017 Energized by a vertical alternating magnetic field, colloidal particles roll and flock together. Assemblages of microscopic colloidal particles exhibit fascinating collective motion when energized by electric or magnetic fields.
A. Kaiser, A. Snezhko, I. Aranson
semanticscholar +1 more source
Clustering and Pattern Formation in Chemorepulsive Active Colloids. [PDF]
Physical Review Letters, 2015 We demonstrate that migration away from self-produced chemicals (chemorepulsion) generates a generic route to clustering and pattern formation among self-propelled colloids.
B. Liebchen +3 more
semanticscholar +1 more source
Dichloromethylation of enones by carbon nitride photocatalysis
Nature Communications, 2020 Long-lived carbon nitride radicals have been used in several photocatalytic reactions. Herein, long-lived potassium poly(heptazine imide) radicals enable synthesis of γ,γ-dichloroketones from enones by addition of CHCl2 moiety, generated from chloroform,
Stefano Mazzanti +4 more
doaj +1 more source
Self-assembly of Active Colloidal Molecules with Dynamic Function
, 2015 Catalytically active colloids maintain non-equilibrium conditions in which they produce and deplete chemicals and hence effectively act as sources and sinks of molecules.
Golestanian, Ramin, Soto, Rodrigo
core +2 more sources
Artificial Receptor in Synthetic Cells Performs Transmembrane Activation of Proteolysis
Advanced Biology, EarlyView.Transmembrane signaling is the hallmark of living cells and is among the highest challenges for the design of synthetic cells. Herein, an artificial receptor based on the chemistry of self‐immolative linkers is used to communicate information across the lipid bilayer, for transmembrane activation of enzymatic activity. Abstract The design of artificial,
Ane Bretschneider Søgaard +7 more
wiley +1 more source
Transport and Deposition of Variably Charged Soil Colloids in Saturated Porous Media
Vadose Zone Journal, 2011 A series of column experiments was conducted to investigate the transport and deposition of variably charged colloids in saturated porous media. Soil colloids with diameters
Anu Sharma +4 more
doaj +1 more source
Formation, Aggregation, and Deposition Dynamics of NOM-Iron Colloids at Anoxic-Oxic Interfaces.
Environmental Science and Technology, 2017 The important role of natural organic matter (NOM)-Fe colloids in influencing contaminant transport, and this role can be influenced by the formation, aggregation, and particle deposition dynamics of NOM-Fe colloids.
Peng Liao +6 more
semanticscholar +1 more source
Shape-preserving erosion controlled by the graded microarchitecture of shark tooth enameloid
Nature Communications, 2020 Shark teeth have short lifespans yet can be subject to significant mechanical damage. Here, the authors report on a site-specific damage mechanism in shark teeth enameloid, which maintains tooth functional shape, providing experimental evidence that ...
Shahrouz Amini +7 more
doaj +1 more source