Zobrazeno 1 - 10
of 213
pro vyhledávání: '"Henrik Bruus"'
Publikováno v:
Water, Vol 16, Iss 4, p 544 (2024)
We study electrohydrodynamic (EHD) linear (in)stability of microfluidic channel flows, i.e., the stability of interface between two shearing viscous (perfect) dielectrics exposed to an electric field in large aspect ratio microchannels. We then apply
Externí odkaz:
https://doaj.org/article/4b846ab69d6d48878df194f03ed87cb4
Publikováno v:
Journal of Manufacturing and Materials Processing, Vol 7, Iss 6, p 222 (2023)
Understanding the relationship between injection molding parameters and the acoustic properties of polymers is crucial for optimizing the design and performance of acoustic-based polymer devices. In this work, the impact of injection molding paramete
Externí odkaz:
https://doaj.org/article/c7c0c29e7dd94a458f916ce8f7441990
Constant-Power versus Constant-Voltage Actuation in Frequency Sweeps for Acoustofluidic Applications
Publikováno v:
Micromachines, Vol 13, Iss 11, p 1886 (2022)
Supplying a piezoelectric transducer with constant voltage or constant power during a frequency sweep can lead to different results in the determination of the acoustofluidic resonance frequencies, which are observed when studying the acoustophoretic
Externí odkaz:
https://doaj.org/article/b025ba43bf17457cbbc8182062b1aa5e
Publikováno v:
AIMS Mathematics, Vol 4, Iss 1, Pp 99-111 (2019)
We present a full 3D numerical simulation of the acoustic streaming observed in full-image micro-particle velocimetry by Hagsäter et al., Lab Chip 7, 1336 (2007) in a 2 mm by 2 mm by 0.2 mm microcavity embedded in a 49 mm by 15 mm by 2 mm chip excit
Externí odkaz:
https://doaj.org/article/8c0f4953f070407ab552fd77f96f7075
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-9 (2016)
Acoustophoresis, a method to manipulate individual cells based on their acoustic properties is confounded by a strong dependency on cell size. Here the authors present iso-acoustic focussing, a way to separate cells in a microfluidic chamber accordin
Externí odkaz:
https://doaj.org/article/e3bf94392fb74acd9a9645bd6a39b6bc
Publikováno v:
Micromachines, Vol 11, Iss 3, p 292 (2020)
We present a numerical model for the recently introduced simple and inexpensive micromachined aluminum devices with a polydimethylsiloxane (PDMS) cover for microparticle acoustophoresis. We validate the model experimentally for a basic design, where
Externí odkaz:
https://doaj.org/article/6b0196a8dbd248028c47e3e445331ed0
Autor:
Mette Hemmingsen, Søren Vedel, Peder Skafte-Pedersen, David Sabourin, Philippe Collas, Henrik Bruus, Martin Dufva
Publikováno v:
PLoS ONE, Vol 8, Iss 5, p e63638 (2013)
INTRODUCTION: High cell density is known to enhance adipogenic differentiation of mesenchymal stem cells, suggesting secretion of signaling factors or cell-contact-mediated signaling. By employing microfluidic biochip technology, we have been able to
Externí odkaz:
https://doaj.org/article/ba85fdac7a3345a5a61cea721dc7cfb1
Autor:
Nils Refstrup Skov, Henrik Bruus
Publikováno v:
Micromachines, Vol 7, Iss 10, p 182 (2016)
We present a finite-element method modeling of acoustophoretic devices consisting of a single, long, straight, water-filled microchannel surrounded by an elastic wall of either borosilicate glass (pyrex) or the elastomer polydimethylsiloxane (PDMS)
Externí odkaz:
https://doaj.org/article/4a16aafcfa4849059c316fce29c0ff7a
Publikováno v:
PLoS ONE, Vol 6, Iss 1, p e14574 (2011)
In recent years, the interest in small-scale bio-reactors has increased dramatically. To ensure homogeneous conditions within the complete area of perfused microfluidic bio-reactors, we develop a general design of a continually feed bio-reactor with
Externí odkaz:
https://doaj.org/article/d860aaa1a67d4aeca34d783b277576ee
Publikováno v:
Joergensen, J H, Qiu, W & Bruus, H 2023, ' Transition from Boundary-Driven to Bulk-Driven Acoustic Streaming Due to Nonlinear Thermoviscous Effects at High Acoustic Energy Densities ', Physical Review Letters, vol. 130, no. 4, 044001 . https://doi.org/10.1103/PhysRevLett.130.044001
Acoustic streaming at high acoustic energy densities Eac is studied in a microfluidic channel. It is demonstrated theoretically, numerically, and experimentally with good agreement that frictional heating can alter the streaming pattern qualitatively
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::42b3499619526d58bae7440aea55912a
https://orbit.dtu.dk/en/publications/8a8cc5bc-70ed-4c83-b1f8-a945ef5b6d41
https://orbit.dtu.dk/en/publications/8a8cc5bc-70ed-4c83-b1f8-a945ef5b6d41
