The ages in a self-suspended nanoparticle liquid

Nano Lett. 2010 Jan;10(1):111-5. doi: 10.1021/nl9029847.

Abstract

Telomers ionically tethered to nanometer-sized particles yield self-suspended, nanoparticle-laden liquids with unusual dynamical features. By subjecting these suspensions to controlled, modest shear strains, we find that their flow behaviors observed using experiments performed on time scales of tens of seconds can be projected to obtain maps of their dynamical response on geological time scales. That such extraordinarily slow dynamic processes can be uncovered from real-time measurements by simply stretching a system provides a simple but powerful tool for interrogating extremely slow motions in other jammed physical states.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Colloids / chemistry
  • Equipment Design
  • Ions
  • Microscopy, Electron, Transmission / methods
  • Nanoparticles / chemistry*
  • Nanostructures / chemistry
  • Nanotechnology / methods*
  • Polyethylene Glycols / chemistry
  • Polymers / chemistry
  • Silicon Dioxide / chemistry
  • Temperature
  • Time Factors
  • Viscosity

Substances

  • Colloids
  • Ions
  • Polymers
  • Polyethylene Glycols
  • Silicon Dioxide