scholarly journals Selective colloidal bonds via polymer-mediated interactions

Soft Matter ◽  
2020 ◽  
Vol 16 (32) ◽  
pp. 7438-7446 ◽  
Author(s):  
Joeri Opdam ◽  
Remco Tuinier ◽  
Theodore Hueckel ◽  
Thom J. Snoeren ◽  
Stefano Sacanna
Keyword(s):  
Electrostatic Repulsion ◽  
Colloidal Assembly ◽  
Bridging Attraction

A novel and versatile approach for selective colloidal assembly mediated by tuning polymeric bridging attraction and electrostatic repulsion.

scholarly journals Microstructure of the near-wall layer of filtration-induced colloidal assembly

Soft Matter ◽  
2020 ◽  
Vol 16 (42) ◽  
pp. 9726-9737
Author(s):  
Mohand Larbi Mokrane ◽  
Térence Desclaux ◽  
Jeffrey F. Morris ◽  
Pierre Joseph ◽  
Olivier Liot
Keyword(s):  
Colloidal Suspension ◽  
Wall Layer ◽  
Electrostatic Repulsion ◽  
Colloidal Assembly ◽  
Drag Forces ◽  
Near Wall

A colloidal suspension clogs model pores. Microstructure of the near-wall layer of colloids is studied. That reveals a transition inside the clog from amorphous to crystalline organisation. It can be related to a competition between drag forces and electrostatic repulsion.

scholarly journals Tunable thermo-reversible bicontinuous nanoparticle gel driven by the binary solvent segregation

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Yuyin Xi ◽  
Ronald S. Lankone ◽  
Li-Piin Sung ◽  
Yun Liu
Keyword(s):  
Phase Separation ◽  
Domain Size ◽  
Binary Solvent ◽  
Colloidal Systems ◽  
Colloidal Assembly ◽  
Structures And Properties ◽  
Wide Range ◽  
Equilibrium Process ◽  
Equilibrium Structures ◽  
Non Equilibrium

AbstractBicontinuous porous structures through colloidal assembly realized by non-equilibrium process is crucial to various applications, including water treatment, catalysis and energy storage. However, as non-equilibrium structures are process-dependent, it is very challenging to simultaneously achieve reversibility, reproducibility, scalability, and tunability over material structures and properties. Here, a novel solvent segregation driven gel (SeedGel) is proposed and demonstrated to arrest bicontinuous structures with excellent thermal structural reversibility and reproducibility, tunable domain size, adjustable gel transition temperature, and amazing optical properties. It is achieved by trapping nanoparticles into one of the solvent domains upon the phase separation of the binary solvent. Due to the universality of the solvent driven particle phase separation, SeedGel is thus potentially a generic method for a wide range of colloidal systems.

Spontaneous Formation of Giant Phospholipid Vesicles

1988 ◽  
Vol 43 (11-12) ◽  
pp. 938-947 ◽  
Author(s):  
Rolf-M. Servuss
Keyword(s):  
Aqueous Solution ◽  
Light Microscopy ◽  
Fluid Phase ◽  
Significant Part ◽  
Phospholipid Vesicles ◽  
Electrostatic Repulsion ◽  
Giant Vesicles ◽  
Spontaneous Formation

The spontaneous formation of giant (diameter > 10 μm) vesicles from a number of phospholipids in excess aqueous solution has been studied by light-microscopy. Electrically neutral as well as charged phospholipids swell to form giant vesicles only if the lipids are in the fluid phase. This shows that electrostatic repulsion alone cannot explain the spontaneous formation of giant vesicles. The results confirm the suggestion that steric forces between extended membranes play a significant part in this process.

Electrostatic repulsion strategy for highly selective and sensitive “switch–on” fluorescence sensor of ascorbic acid based on the cysteamine-coated CdTe quantum dots and cerium (IV)

2021 ◽  
Author(s):  
Yifei Guo ◽  
Jingjing Du ◽  
Jianjun Li ◽  
Ran Yang ◽  
Peter B. de Harrington ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Ascorbic Acid ◽  
Hydrothermal Method ◽  
Cadmium Chloride ◽  
Fluorescence Sensor ◽  
Cdte Quantum Dots ◽  
Electrostatic Repulsion ◽  
Functional Monomer ◽  
Simple Hydrothermal Method ◽  
Cdte Qds

In this work, cysteamine-coated CdTe quantum dots (CA-CdTe QDs) were synthesized by a simple hydrothermal method employing cadmium chloride as the cadmium source and cysteamine hydrochloride as the functional monomer....

Engineering Electrostatic Repulsion of Metal Nanoparticles for Reduced Adsorption in Single-Impact Electrochemical Recordings

2021 ◽  
Author(s):  
Lennart J. K. Weiß ◽  
Emir Music ◽  
Philipp Rinklin ◽  
Lea Straumann ◽  
Leroy Grob ◽  
...  
Keyword(s):  
Metal Nanoparticles ◽  
Electrostatic Repulsion ◽  
Single Impact

Histidine-Mediated Intramolecular Electrostatic Repulsion for Controlling pH-Dependent Protein–Protein Interaction

2019 ◽  
Vol 14 (12) ◽  
pp. 2729-2736 ◽  
Author(s):  
Hideki Watanabe ◽  
Chuya Yoshida ◽  
Ayako Ooishi ◽  
Yasuto Nakai ◽  
Momoko Ueda ◽  
...  
Keyword(s):  
Protein Interaction ◽  
Electrostatic Repulsion ◽  
Protein Protein Interaction ◽  
Dependent Protein ◽  
Ph Dependent

scholarly journals Colloidal assembly of polydisperse particle blends during drying

Soft Matter ◽  
2020 ◽  
Vol 16 (36) ◽  
pp. 8453-8461
Author(s):  
Yichen Dong ◽  
Nicolas Busatto ◽  
Peter J. Roth ◽  
Ignacio Martin-Fabiani
Keyword(s):  
Evaporation Rate ◽  
Size Segregation ◽  
Colloidal Assembly ◽  
Polydisperse Particle

Polydisperse particle blends hold great potential for controlling size segregation during drying when varying evaporation rate.

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