Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Dry Friction01:30

Dry Friction

986
Dry friction occurs between two solid surfaces in contact as they attempt to move relative to one another. In daily life, dry friction is encountered in various forms, such as when walking on the ground, sliding an object across a table, or rubbing hands together. Despite its ubiquity, the underlying mechanisms behind dry friction are not readily visible.
To illustrate this concept, imagine a wooden crate resting on a rough, non-uniform horizontal surface. When an external force is applied to...
986
Drying Shrinkage01:21

Drying Shrinkage

374
When hardened concrete is exposed to air with a relative humidity of less than 100 percent, it begins to lose the free water within its capillaries. As this water evaporates, the water initially adsorbed onto the calcium silicate hydrates migrates towards these now empty spaces and eventually evaporates as well. Over time, as more water leaves, the volume of the concrete decreases, a phenomenon known as drying shrinkage.
A portion of this drying shrinkage can be reversed; if the concrete is...
374
Characteristics of Dry Friction01:21

Characteristics of Dry Friction

985
Dry friction occurs when two solid surfaces slide against each other without any lubrication or fluid present. It causes resistance when pushing objects along a surface, like a gardener pushing a wheelbarrow. The force applied to move the cart causes dry friction between the wheel and the ground.
Before the wheelbarrow starts moving, the static frictional force acts tangentially to the contact surface, opposing the force that is about to induce the motion. This frictional force prevents the...
985
ATP Driven Pumps I: An Overview01:27

ATP Driven Pumps I: An Overview

9.8K
ATP-driven pumps, also known as transport ATPases, are integral membrane proteins. They have binding sites for ATP located on the membrane's cytosolic side and the ion-conducting domain in the transmembrane region. These pumps use the free energy released from ATP hydrolysis to move the solutes across cell membranes against an electrochemical gradient.
There are four main types of ATP-driven pumps - P-type, V-type, F-type, and ABC transporter. All these pumps are of varying complexities and...
9.8K
Surface Tension and Surface Energy01:16

Surface Tension and Surface Energy

3.3K
When a paint brush is immersed in water, the bristles wave freely inside the water. When it is taken out, the bristles stick together. The reason behind this effect is surface tension.
Consider a beaker filled with liquid. The bulk molecules in the liquid experience equal attractive forces on all sides with the surrounding molecules. However, the surface molecules experience a net attractive force downward due to the bulk molecules. The surface of the liquid behaves like a stretched membrane,...
3.3K
Washing, Drying, and Ignition of Precipitates00:52

Washing, Drying, and Ignition of Precipitates

6.8K
After filtration, the precipitate is washed to remove coprecipitated impurities and any remaining mother liquor. Colloidal precipitates, such as silver chloride, are washed with an electrolyte (such as dilute nitric acid) to prevent the peptization of the precipitate. In the case of slightly soluble precipitates, the wash solution contains a common ion to reduce solubility. Lead sulfate, which is slightly soluble in water, is washed with dilute sulfuric acid. Similarly, wash solutions may be...
6.8K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Context-Dependent Epithelial and Immune Programs Shape Intestinal Resilience or Vulnerability Following Prior Colitis.

Cellular and molecular gastroenterology and hepatology·2026
Same author

GBP1 recruitment to actin-rich pedestals of extracellular Gram-negative bacteria promotes pyroptosis.

The EMBO journal·2026
Same author

Self-assembly driven superstructures in nanotechnology: emergent phenomena, characterization and applications.

Nanotechnology·2026
Same author

Innovative Nanoparticle-based Therapeutic Strategies: Overcoming Biological Barriers for Enhanced Efficacy.

Current drug targets·2026
Same author

Structural Insight into Coexistence of Flexibility and Toughness in Ctenoid Fish Scales.

ACS biomaterials science & engineering·2026
Same author

Rectally Administered Budesonide-Loaded Phase Transformable Premix Offers Improved Recovery of Intestinal Mucosa in Ulcerative Colitis.

Langmuir : the ACS journal of surfaces and colloids·2026
Same journal

Synthesis of covalent organic frameworks and plasmon-assisted exfoliation for enhanced solar hydrogen production.

Journal of colloid and interface science·2026
Same journal

Efficient hydrogen production and anti-coking via reforming of waste plastics by oxygen vacancy promoted plasma-catalysis.

Journal of colloid and interface science·2026
Same journal

Lanthanum-modulated hollow CuO nanofibers enable selective CO<sub>2</sub> electroreduction to multicarbon products at high current densities.

Journal of colloid and interface science·2026
Same journal

Tris(vinyl dimethylsilyl) phosphate: Enhancing interface stability in high-voltage Li-ion batteries at elevated temperatures.

Journal of colloid and interface science·2026
Same journal

Electron-donor modulated built-in electric fields in Ni<sub>2</sub>P/MoS<sub>2</sub> Heterostructures for accelerated sodium storage kinetics.

Journal of colloid and interface science·2026
Same journal

Porous flexible structure mediated synergistic boost of built-in electric field and photothermal effect for enhanced photocatalysis.

Journal of colloid and interface science·2026
See all related articles

Related Experiment Video

Updated: Feb 1, 2026

Characterization of Anisotropic Leaky Mode Modulators for Holovideo
09:36

Characterization of Anisotropic Leaky Mode Modulators for Holovideo

Published on: March 19, 2016

8.3K

Anisotropic interaction driven surface modulation on spray-dried microgranules.

Priyanka Biswas1, Debasis Sen1, Jae-Min Ha2

  • 1Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400085, India; Homi Bhabha National Institute, Mumbai 400094, India.

Journal of Colloid and Interface Science
|December 4, 2018
PubMed
Summary
This summary is machine-generated.

Anisotropy in nanoparticle interactions dictates the surface patterns of spray-dried granules. Identical polarities lead to wrinkled structures, while opposite polarities result in smoother surfaces, controlled by nanosilica and carbon nanotube concentrations.

Keywords:
ColloidsMicrogranulesSelf-assemblySpray-dryingSurface modulation

More Related Videos

Author Spotlight: Process Development for the Spray-Drying of Probiotic Bacteria and Evaluation of the Product Quality
05:45

Author Spotlight: Process Development for the Spray-Drying of Probiotic Bacteria and Evaluation of the Product Quality

Published on: April 7, 2023

4.3K
Grafting Multiwalled Carbon Nanotubes with Polystyrene to Enable Self-Assembly and Anisotropic Patchiness
11:09

Grafting Multiwalled Carbon Nanotubes with Polystyrene to Enable Self-Assembly and Anisotropic Patchiness

Published on: April 1, 2018

8.5K

Related Experiment Videos

Last Updated: Feb 1, 2026

Characterization of Anisotropic Leaky Mode Modulators for Holovideo
09:36

Characterization of Anisotropic Leaky Mode Modulators for Holovideo

Published on: March 19, 2016

8.3K
Author Spotlight: Process Development for the Spray-Drying of Probiotic Bacteria and Evaluation of the Product Quality
05:45

Author Spotlight: Process Development for the Spray-Drying of Probiotic Bacteria and Evaluation of the Product Quality

Published on: April 7, 2023

4.3K
Grafting Multiwalled Carbon Nanotubes with Polystyrene to Enable Self-Assembly and Anisotropic Patchiness
11:09

Grafting Multiwalled Carbon Nanotubes with Polystyrene to Enable Self-Assembly and Anisotropic Patchiness

Published on: April 1, 2018

8.5K

Area of Science:

  • Materials Science
  • Colloid and Surface Chemistry
  • Nanotechnology

Background:

  • Spray drying is a common method for creating granular materials from colloidal dispersions.
  • The self-assembly of nanoparticles during solvent evaporation influences the final granule structure.
  • Understanding interparticle forces is crucial for controlling nanoparticle assembly and material properties.

Purpose of the Study:

  • To investigate the role of anisotropic interparticle interactions in governing the surface topology of spray-dried granules.
  • To explore how varying the concentrations of nanosilica (NS) and carbon nanotubes (CNT) affects granule morphology.
  • To elucidate the mechanism behind surface modulation formation during spray drying.

Main Methods:

  • Utilized a model colloidal dispersion of spherical nanosilica (NS) and cylindrical carbon nanotubes (CNT).
  • Controlled interparticle interactions by adjusting the polarity of colloidal components.
  • Employed electron microscopy, small-angle scattering, and Raman spectroscopy for quantitative characterization.

Main Results:

  • Anisotropy in colloidal interparticle interactions significantly influences granule surface topology.
  • Granules with identical polarities exhibited prominent wrinkle-like surface modulations.
  • Granules with opposite polarities showed a drastic contrast, likely with smoother surfaces.
  • The degree of surface modulation was dependent on the relative concentrations of CNT and NS.

Conclusions:

  • Anisotropic interparticle forces are a key factor in directing nanoparticle self-assembly during spray drying.
  • The polarity and concentration of components in colloidal dispersions can be tuned to control granule surface morphology.
  • The findings provide insights into the mechanism of surface modulation formation in spray-dried micro-granules.