Ionic fluctuations in finite volumes: fractional noise and hyperuniformity

B Rotenberg, S Marbach - Faraday Discussions, 2023 - pubs.rsc.org
Observing finite regions of a bigger system is a common aim, from microscopy to molecular
simulations. In the latter especially, there is ongoing interest in predicting thermodynamic …

[HTML][HTML] Intrinsic fractional noise in nanopores: The effect of reservoirs

S Marbach - The Journal of Chemical Physics, 2021 - pubs.aip.org
Fluctuations affect nanoporous transport in complex and intricate ways, making optimization
of the signal-to-noise ratio in artificial designs challenging. Here, we focus on the simplest …

Current fluctuations in nanopores reveal the polymer-wall adsorption potential

SF Knowles, NE Weckman, VJY Lim, DJ Bonthuis… - Physical Review Letters, 2021 - APS
Modification of surface properties by polymer adsorption is a widely used technique to tune
interactions in molecular experiments such as nanopore sensing. Here, we investigate how …

Specific adsorption of trivalent cations in biological nanopores determines conductance dynamics and reverses ionic selectivity

M Queralt-Martín, DA Perini, A Alcaraz - Physical Chemistry Chemical …, 2021 - pubs.rsc.org
Adsorption processes are central to ionic transport in industrial and biological membrane
systems. Multivalent cations modulate the conductive properties of nanofluidic devices …

Interpreting the power spectral density of a fluctuating colloidal current

SF Knowles, EKR Mackay, AL Thorneywork - arxiv preprint arxiv …, 2024 - arxiv.org
The transport of molecules through biological and synthetic nanopores is governed by
multiple stochastic processes that lead to noisy, fluctuating currents. Disentangling the …

Comparison of SEM-assisted nanoporometric and microporometric morphometric techniques applied for the ultramicroporous polymer films

IA Maklakova, OV Gradov, MA Gradova… - Key Engineering …, 2021 - Trans Tech Publ
One of the most important applications of polymeric porous nanomaterials is the design of
nanoporous structures for operation in patch-clamp systems allowing to establish a gigaohm …

A molecular dynamics simulation framework for predicting noise in solid-state nanopores

O Patil, D Manikandan, VVR Nandigana - Molecular Simulation, 2020 - Taylor & Francis
In this paper, we perform all-atom molecular dynamics (AA-MD) simulations to predict noise
in solid-state nanopores. The simulation system consists of∼ 70,000 to∼ 350,000 atoms …

Fluctuations in channel transport across multiple lengthscales

S Knowles - 2022 - repository.cam.ac.uk
Channel transport is an important physical process, with relevance to diverse fields from cell
biology to single molecule sensors, catalysts and filters. Given the ubiquitous nature of …

Electrophysiological characterization of membrane permeability: from protein channels to nanoparticles

DA Perini - 2022 - research.science.eus
Cell membrane permeability is modulated by complex dynamical structures created by
objects interacting with the lipid bilayer. Paying attention to the kinetics of ion transport in …

[PDF][PDF] Investigating noise signatures of polymer adsorption using nanopores

SF Knowles, NE Weckman, VJ Lim… - arxiv preprint arxiv …, 2020 - qiniu.pattern.swarma.org
The modification of surface properties by polymer adsorption is a widely used technique to
tune interactions in molecular experiments, such as resistive pulse sensing with nanopores …