Microfluidic extensional rheometry using stagnation point flow

SJ Haward - Biomicrofluidics, 2016 - pubs.aip.org
Characterization of the extensional rheometry of fluids with complex microstructures is of
great relevance to the optimization of a wide range of industrial applications and for …

A review of microfluidic concepts and applications for atmospheric aerosol science

AR Metcalf, S Narayan, CS Dutcher - Aerosol Science and …, 2018 - Taylor & Francis
Microfluidics is used in a broad range of applications, from biology and medicine to
chemistry and polymer science, because this versatile platform enables rapid and precise …

Elastic instabilities in planar elongational flow of monodisperse polymer solutions

SJ Haward, GH McKinley, AQ Shen - Scientific reports, 2016 - nature.com
We investigate purely elastic flow instabilities in the almost ideal planar stagnation point
elongational flow field generated by a microfluidic optimized-shape cross-slot extensional …

High‐Yield Bioproduction of Extracellular Vesicles from Stem Cell Spheroids via Millifluidic Vortex Transport

E Thouvenot, L Charnay, N Burshtein… - Advanced …, 2024 - Wiley Online Library
Extracellular vesicles (EVs) are emerging as novel therapeutics, particularly in cancer and
degenerative diseases. Nevertheless, from both market and clinical viewpoints, high‐yield …

Viscous flow through microfabricated axisymmetric contraction/expansion geometries

F Pimenta, K Toda-Peters, AQ Shen, MA Alves… - Experiments in …, 2020 - Springer
We employ a state-of-the-art microfabrication technique (selective laser-induced etching) to
fabricate a set of axisymmetric microfluidic geometries featuring a 4: 1 contraction followed …

[HTML][HTML] Optimal shape design of printing nozzles for extrusion-based additive manufacturing

T Schuller, M Jalaal, P Fanzio… - Additive Manufacturing, 2024 - Elsevier
The optimal design seeks the best possible solution (s) for a mechanical structure, device, or
system, satisfying a series of requirements and leading to the best performance. In this work …

[HTML][HTML] Extensional rheometry of mobile fluids. Part I: OUBER, an optimized uniaxial and biaxial extensional rheometer

SJ Haward, F Pimenta, S Varchanis, DW Carlson… - Journal of …, 2023 - pubs.aip.org
Numerical optimization of a “six-arm cross-slot” device yields several three-dimensional
shapes of fluidic channels that impose close approximations to an ideal uniaxial (biaxial) …

Numerical investigation of the dynamics of a rigid spherical particle in a vortical cross-slot flow at moderate inertia

K Kechagidis, B Owen, L Guillou, H Tse… - Microsystems & …, 2023 - nature.com
The study of flow and particle dynamics in microfluidic cross-slot channels is of high
relevance for lab-on-a-chip applications. In this work, we investigate the dynamics of a rigid …

[HTML][HTML] Microfluidic converging/diverging channels optimised for homogeneous extensional deformation

K Zografos, F Pimenta, MA Alves, MSN Oliveira - Biomicrofluidics, 2016 - pubs.aip.org
In this work, we optimise microfluidic converging/diverging geometries in order to produce
constant strain-rates along the centreline of the flow, for performing studies under …

Influence of fluid rheology on multistability in the unstable flow of polymer solutions through pore constriction arrays

EY Chen, SS Datta - arxiv preprint arxiv:2407.00778, 2024 - arxiv.org
Diverse chemical, energy, environmental, and industrial processes involve the flow of
polymer solutions in porous media. The accumulation and dissipation of elastic stresses as …