Dynamic Structure Factor of Microemulsions

Gompper, Gerhard; Hennes, M.

doi:10.1103/physrevlett.73.1114

Cited by 14 publications

(12 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…V, we show that for the NSE regime, Eqs. (35) and (36) are in excellent agreement with the numerical calculations. We stress that the SL model certainly allows for behavior that is not well captured by the expressions presented above, which involve taking the traditional ZG result and making the single substitution κ →κ.…”

Section: B Bilayer Dissipation Included Within Nse Regimesupporting

confidence: 80%

The intermediate scattering function for lipid bilayer membranes: From nanometers to microns

Watson

Peng

Zheng

et al. 2011

The Journal of Chemical Physics

View full text Add to dashboard Cite

A numerical scheme based upon established hydrodynamic and elastic considerations is introduced and used to predict the intermediate scattering function for lipid bilayer membranes. The predictions span multiple wavelength regimes, including those studied by dynamic light scattering (DLS; microns) and neutron spin-echo (NSE) spectroscopy (10-100 nm). The results validate a recent theory specific to the NSE regime and expose slight inaccuracies associated with the theoretical results available in the DLS regime. The assumptions that underlie both our numerical methods and the related theoretical predictions are reviewed in detail to explain when certain results can be applied to experiment and where caution must be exercised.

show abstract

Section: B Bilayer Dissipation Included Within Nse Regimesupporting

confidence: 80%

The intermediate scattering function for lipid bilayer membranes: From nanometers to microns

Watson

Peng

Zheng

et al. 2011

The Journal of Chemical Physics

View full text Add to dashboard Cite

show abstract

“…32 also predicted a damped oscillating correlation function for a bulk microemulsion model on a different basis , however with no direct link to the parameters B , γ , and κ and the relevant length scale. Our present result indicates that this predicted behaviour indeed occurs, but only at the Q -values probed here, conforming with the results of the simulation.…”

Section: Discussionmentioning

confidence: 99%

Nanoscale rheology at solid-complex fluid interfaces

Jaksch

Holderer

Gvaramia

et al. 2017

Sci Rep

View full text Add to dashboard Cite

Here we present an approach to measure dynamic membrane properties of phospholipid membranes close to an interface. As an example we show results of the membrane dynamics of a phospholipid membrane multilayer-stack on a solid substrate (silicon). On this sample we were able to measure local interaction and friction parameters using Grazing Incidence Neutron Spin Echo Spectroscopy (GINSES), where an evanescent neutron wave probes the fluctuations close to a rigid interface. With this method it is possible to access length scales in the nano to micrometer region as well as energies in the μeV range. Using a new neutron resonator structure we achieved the required intensity gain for this experiment. During our investigations we found an excitation mode of the phospholipid membrane that has not been reported previously and only became visible using the new methodology. We speculate that the energy transported by that undulation can also serve to distribute energy over a larger area of the membrane, stabilizing it. This new methodology has the capability to probe the viscoelastic effects of biological membranes, becoming a new tool for tribology on the nanoscale and has allowed the observation of the hitherto invisible property of phospholipid membranes using neutrons.

show abstract

“…For the model with the monotonically decaying water-water correlation functions, the dynamic scattering intensities have been calculated by Granek and Cates 41 and by Milner et al 42 The validity of these results is limited to the regime qӶq 0 . The model with oscillating correlation functions has been studied by Hennes and Gompper 43,44 and, using a different theoretical technique, by Nonomura and Ohta. 45 We restrict our discussion to the latter model.…”

Section: B Intermediate and Low-q Dynamicsmentioning

confidence: 99%