6 papers
Orientational bistability and field-controlled switching of a superparamagnetic dimer
James R. N. Tett, Finlay Johnston, Brennan Sprinkle +1
We study the orientational dynamics of superparamagnetic colloidal dimers that carry both an induced magnetic moment, proportional to the applied field, and an effective permanent…
Collective Hard Core Interactions Leave Multiscale Signatures in Number Fluctuation Spectra
Eleanor K. R. Mackay, Anna Drummond Young, Adam Carter +2
A full understanding of transport in dense, interacting suspensions requires analysis frameworks sensitive to self and collective dynamics across all relevant spatial and temporal…
Decoding Noise in Nanofluidic Systems: Adsorption versus Diffusion Signatures in Power Spectra
Anna Drummond Young, Alice L. Thorneywork, Sophie Marbach
Adsorption processes play a fundamental role in molecular transport through nanofluidic systems, but their signatures in measured signals are often hard to distinguish from other p…
Measuring collective diffusion properties by counting particles in boxes
Adam Carter, Eleanor K. R. Mackay, Brennan Sprinkle +2
The collective diffusion coefficient is a key quantity for describing the macroscopic transport properties of soft matter systems. However, measuring $D_\mathrm{c…
Interpreting the power spectral density of a fluctuating colloidal current
Stuart F. Knowles, Eleanor K. R. Mackay, Alice L. Thorneywork
The transport of molecules through biological and synthetic nanopores is governed by multiple stochastic processes that lead to noisy, fluctuating currents. Disentangling the chara…
The Countoscope: Measuring Self and Collective Dynamics without Trajectories
Eleanor K. R. Mackay, Sophie Marbach, Brennan Sprinkle +1
Driven by physical questions pertaining to quantifying particle dynamics, microscopy can now resolve complex systems at the single particle level, from cellular organisms to indivi…