Microstructured fluids: Structure, diffusion and rheology of colloidal dispersions

1992 ◽  
Author(s):  
Thanh Phung ◽  
John F. Brady
Keyword(s):  
Colloidal Dispersions ◽  
Microstructured Fluids

Cryo-TEM of amphiphilic polymer and amphiphile/polymer solutions

1993 ◽  
Vol 51 ◽  
pp. 876-877
Author(s):  
Yeshayahu Talmon
Keyword(s):  
Microstructural Characterization ◽  
Building Blocks ◽  
Quantitative Information ◽  
Physical Models ◽  
Specimen Preparation ◽  
Time Resolved ◽  
Temperature Changes ◽  
Temperature And Humidity ◽  
Microstructured Fluids ◽  
Air Streams

To achieve complete microstructural characterization of self-aggregating systems, one needs direct images in addition to quantitative information from non-imaging, e.g., scattering or Theological measurements, techniques. Cryo-TEM enables us to image fluid microstructures at better than one nanometer resolution, with minimal specimen preparation artifacts. Direct images are used to determine the “building blocks” of the fluid microstructure; these are used to build reliable physical models with which quantitative information from techniques such as small-angle x-ray or neutron scattering can be analyzed.To prepare vitrified specimens of microstructured fluids, we have developed the Controlled Environment Vitrification System (CEVS), that enables us to prepare samples under controlled temperature and humidity conditions, thus minimizing microstructural rearrangement due to volatile evaporation or temperature changes. The CEVS may be used to trigger on-the-grid processes to induce formation of new phases, or to study intermediate, transient structures during change of phase (“time-resolved cryo-TEM”). Recently we have developed a new CEVS, where temperature and humidity are controlled by continuous flow of a mixture of humidified and dry air streams.

Assessment of gel formation in colloidal dispersions during mixing in turbulent jets

AIChE Journal ◽  
2013 ◽  
Vol 59 (12) ◽  
pp. 4567-4581 ◽  
Author(s):  
Miroslav Soos ◽  
Daniele L. Marchisio ◽  
Jan Sefcik
Keyword(s):  
Turbulent Jets ◽  
Colloidal Dispersions ◽  
Gel Formation

scholarly journals Synthesis and characterization of Fe, Co, and Ni colloids in 2-mercaptoethanol

2020 ◽  
Vol 10 ◽  
pp. 184798042096688
Author(s):  
Galo Cárdenas-Triviño ◽  
Sergio Triviño-Matus
Keyword(s):  
Electron Microscopy ◽  
Electron Diffraction ◽  
Colloidal Dispersions ◽  
Synthesis And Characterization ◽  
X Ray ◽  
Transmission Electron ◽  
Vis Spectroscopy ◽  
Chemical Liquid Deposition ◽  
Liquid Deposition

Metal colloids in 2-mercaptoethanol using nanoparticles (NPs) of iron (Fe), cobalt (Co), and nickel (Ni) were prepared by chemical liquid deposition method. Transmission electron microscopy, electron diffraction, UV-VIS spectroscopy, and scanning electron microscopy with electron dispersive X-ray spectroscopy characterized the resulting colloidal dispersions. The NPs exhibited sizes with ranges from 9.8 nm for Fe, 3.7 nm for Co, and 7.2 nm for Ni. The electron diffraction shows the presence of the metals in its elemental state Fe (0), Co (0), and Ni (0) and also some compounds FeO (OH), CoCo2S4, and NiNi2S4.

scholarly journals Colloidal suspensions of highly luminescent lanthanide-based coordination polymer molecular alloys for ink-jet printing and tagging of technical liquids

2021 ◽  
Vol 8 (8) ◽  
pp. 2125-2135
Author(s):  
Youenn Pointel ◽  
Carole Daiguebonne ◽  
Yan Suffren ◽  
Francois Le Natur ◽  
Stéphane Freslon ◽  
...  
Keyword(s):  
Coordination Polymer ◽  
Colloidal Suspensions ◽  
Colloidal Dispersions ◽  
Ink Jet Printing ◽  
Ink Jet ◽  
Jet Printing

A series of lanthanide-based coordination polymer molecular alloy colloidal dispersions usable for ink-jet printing and tagging of technical liquids.

On the calculation of the structure of charge-stabilized colloidal dispersions using density-dependent potentials

2012 ◽  
Vol 24 (6) ◽  
pp. 065102 ◽  
Author(s):  
R Castañeda-Priego ◽  
V Lobaskin ◽  
J C Mixteco-Sánchez ◽  
L F Rojas-Ochoa ◽  
P Linse
Keyword(s):  
Colloidal Dispersions ◽  
Density Dependent

Limits of magnetic flocculation in colloidal dispersions

1983 ◽  
Vol 19 (5) ◽  
pp. 2118-2120 ◽  
Author(s):  
R. van Kleef ◽  
H. Myron ◽  
P. Wyder ◽  
D. Fletcher ◽  
J. Glew ◽  
...  
Keyword(s):  
Colloidal Dispersions
Sign in / Sign up

Export Citation Format

Share Document