Journal ArticleDOI
Critical dynamics of the sol-gel transition.
James E. Martin,Jess P. Wilcoxon +1 more
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The dynamics of the sol-gel transition is probed by use of quasielastic light scattering, and a type of critical dynamics is observed that is associated with a divergent friction, rather than a singularity in a thermodynamic quantity.Abstract:
The dynamics of the sol-gel transition is probed by use of quasielastic light scattering. A type of critical dynamics is observed that is associated with a divergent friction, rather than a singularity in a thermodynamic quantity. Several novel effects are reported, including power-law time decay of the intensity autocorrelation function, critical slowing down of the average relaxation time, and observation of a fractal time set in the scattered field.read more
Citations
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Journal ArticleDOI
Colloidal gels: equilibrium and non-equilibrium routes
TL;DR: In this article, a classification of different colloidal gels based on colloid colloid interactions is presented, and the authors discriminate primarily between non-equilibrium and equilibrium routes to gelation, the former being slaved to thermodynamic phase separation while the latter is individuated in the framework of competing interactions and of patchy colloids.
Book ChapterDOI
Rheology of Polymers Near Liquid-Solid Transitions
H. Henning Winter,Marian Mours +1 more
TL;DR: In this article, a wide variety of rheological observations of materials in the vicinity of an LST are discussed with respect to their universality, and a variety of applications for polymers near the liquid-solid transition are presented that either already exist or can be envisioned.
Journal ArticleDOI
Electromagnetic properties of small-particle composites
TL;DR: In this paper, the effects of fractal morphology, such as a localization of dipolar eigenmodes and large fluctuations of local fields, are analyzed, and linear and non-linear optical properties of small-particle aggregates are considered.
Journal ArticleDOI
Biocatalytic induction of supramolecular order
Andrew R. Hirst,Sangita Roy,Meenakshi Arora,Apurba K. Das,Nigel Hodson,Paul Murray,Stephen Marshall,Nadeem Javid,Jan Sefcik,Job Boekhoven,Jan H. van Esch,Stefano Santabarbara,Stefano Santabarbara,Neil T. Hunt,Rein V. Ulijn +14 more
TL;DR: By combining biocatalysis and molecular self-assembly, supramolecular gels have shown the ability to more quickly access higher-ordered structures by simply increasing enzyme concentration, and gels that assembled faster showed fewer defects.
Journal ArticleDOI
pH-Dependent Conformational Change of Gastric Mucin Leads to Sol-Gel Transition
Xingxiang Cao,Xingxiang Cao,Rama Bansil,K. Ramakrishnan Bhaskar,Bradley S. Turner,J. Thomas Lamont,Niu Niu,Nezam H. Afdhal +7 more
TL;DR: It is proposed that the conformational change facilitates cross-links among mucin macromolecules through hydrophobic interactions at low pH, which in turn leads to a sol-gel transition when the mucin solution is sufficiently concentrated.
References
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Journal ArticleDOI
Critical exponents for the sol-gel transition.
TL;DR: Critical exponents describing the divergences of the average mass and correlation length were found to be larger than the predictions of either the percolation or Flory-Stockmayer theory.
Journal ArticleDOI
Incoherent scattering near a sol gel transition
TL;DR: In this article, the self correlation function for one monomer in a gelating system near the sol gel transition is analyzed based on the Stauffer distribution for cluster sizes, plus a scaling ansatz for the viscosity at different spatial scales.