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 Experiment Videos

Dynamics of weakly aggregated colloidal particles.

Maria L Kilfoil1, Eugene E Pashkovski, James A Masters

  • 1Department of Physics, Harvard University, Cambridge, MA 02138, USA.

Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
|July 23, 2003
PubMed
Summary

Colloid-polymer gels exhibit delayed gravitational collapse due to weak attractive forces. This aging behavior shows unexpected scaling, offering new insights into gel network evolution and stability.

Related Concept Videos

You might also read

Related Articles

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

Sort by
Same author

Propagation of extended fractures by local nucleation and rapid transverse expansion of crack-front distortion.

Nature physics·2024
Same author

Controlled Continuous Evolution of Enzymatic Activity Screened at Ultrahigh Throughput Using Drop-Based Microfluidics.

Angewandte Chemie (International ed. in English)·2023
Same author

Dynamic Speckle Holography.

Physical review letters·2021
Same author

The vortex-driven dynamics of droplets within droplets.

Nature communications·2021
Same author

Self-Limited Accumulation of Colloids in Porous Media.

Physical review letters·2019
Same author

Traveling surface acoustic wave (TSAW) microfluidic fluorescence activated cell sorter (μFACS).

Lab on a chip·2019

Area of Science:

  • Soft matter physics
  • Colloid science
  • Polymer physics

Background:

  • Colloidal systems with weak attractive interparticle interactions, often induced by polymer additives, exhibit complex phase behavior.
  • The jamming phase diagram describes fluid-to-solid transitions based on volume fraction, attractive energy, and applied stress.

Purpose of the Study:

  • To investigate the aging behavior of solid gels formed by colloid-polymer mixtures.
  • To understand the phenomenon of delayed gravitational collapse in these gels.
  • To explore the universal scaling behavior associated with this collapse.

Main Methods:

  • Review of jamming phase diagram concepts for colloidal systems.
  • Experimental observation of delayed gravitational collapse in colloid-polymer gels.

Related Experiment Videos

  • Confocal microscopy to study the evolution of the gel network structure.

    • Main Results:

    • Colloid-polymer gels display a delayed collapse under gravity.
    • The time evolution of sediment height exhibits a universal scaling behavior.
    • Microscopic analysis reveals insights into the structural evolution of the aging gel network.

    Conclusions:

    • The aging behavior in colloid-polymer gels is characterized by a universal delayed collapse mechanism.
    • Confocal microscopy provides a microscopic understanding of the network's structural evolution during aging.
    • These findings contribute to a deeper understanding of gel aging dynamics in soft matter systems.