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Soft condensed matter, nonlinear rheology and SENSOCELL

Soft condensed matter, nonlinear rheology and SENSOCELL

We are delighted to share a new publication that shows another interesting application of SENSOCELL:

Non-equilibrium fluctuations and nonlinear response of an active bath

 Hunter Seyforth, Mauricio Gomez, W. Benjamin Rogers, Jennifer L. Ross, Wylie W. Ahmed

In this work, Dr Ahmed, the leader of the  Laboratory for Soft, Living, and Active Matter at the Califronaia State University Fullerton, together with   Dr Syforth and Dr Gomez from the same university , Dr Rogers from the Brandeis University and Dr Ross from the Syracuse University, analyze the dynamics of a passive colloidal probe immersed in an active bath using Optical tweezers in combination with our force spectroscopy technology .

If you are interested in soft condensed matter and nonlinear rheology do not miss it !

This article is a pre-print, and you will find it at: arXiv:2110.15917 [cond-mat.soft]

Congratulations to all the people involved !

 

📌For more information about how SENSOCELL can help you in your research projects, please contact us here.

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Fig. 1

Time dependence of trap position (top), force signal (middle) and Ca2+ fluorescence signal (bottom) recorded during a membrane tether pulling experiment. The force and Ca2+ ion channel activity signals exhibit negative correlation.

Fig. 2

Force and displacement data for two beads stimulated at frequencies of 4 Hz and 0.25 Hz. The progressive reduction of the beads displacement is in concomitancy with an increase of the applied force and loading rate.

Fig. 1

Schematic representation of the optical tweezers experiment. A fibronectin-coated bead is trapped, brought into contact with the cell membrane and stimulated with oscillations at different frequencies.

Fig.2

Time dependence of trap 1 and trap 2 position (top) and force (bottom) data along the different steps of the described dual tether pulling experiment.

Fig.1

Confocal video of the described dual tether pulling assay performed on a neuron axon. Courtesy of M. Krieg lab (ICFO).

Fig. 1

Time dependence of trap position (top), force signal (middle) and Ca2+ fluorescence signal (bottom) recorded during a membrane tether pulling experiment. The force and Ca2+ ion channel activity signals exhibit negative correlation.

Video 1

Confocal video showing a DVA neuron Ca2+ ion channel activity in a dynamic optical trapping assay. The pulling rate applied to the membrane tether is progressively increased. Scale bar = 5µm. Acquired at 10Hz.