Results 51 to 60 of about 550,152 (284)

Electrically Readable Lateral Flow Assay Using Organic Transistors for Diagnostic Applications

Advanced Materials, EarlyView.
Electrolyte‐gated organic field‐effect transistors (EGOFETs) are integrated with lateral flow (LF) paper fluidics to create a reusable, portable, and low‐cost point‐of‐care (PoC) diagnostic test. The devices are validated for Human Immunoglobulin G detection, achieving high sensitivity (0.1 fm), selectivity, and reproducibility with rapid results in 20–
María Jesús Ortiz‐Aguayo, Carme Martínez‐Domingo, Diego Gutiérrez, Dean Kos, Marta Mas‐Torrent   +4 more
wiley   +1 more source

The three-dimensional structure of swirl-switching in bent pipe flow

, 2017
Swirl-switching is a low-frequency oscillatory phenomenon which affects the Dean vortices in bent pipes and may cause fatigue in piping systems. Despite thirty years worth of research, the mechanism that causes these oscillations and the frequencies that
Canton, Jacopo, Hufnagel, Lorenz, Marin, Oana, Merzari, Elia, Oerlue, Ramis, Schlatter, Philipp   +5 more
core   +1 more source

Particle transport in turbulent curved pipe flow

, 2016
Direct numerical simulations (DNS) of particle-laden turbulent flow in straight, mildly curved and strongly bent pipes are performed in which the solid phase is modelled as small heavy spherical particles. A total of seven populations of dilute particles
Brandt, Luca, Noorani, Azad, Sardina, Gaetano, Schlatter, Philipp   +3 more
core   +1 more source

Microfluidic Engineering of Chitosan‐Coated Nanoemulsions for Controlled Release and Stability in Space Pharmaceutics

Advanced Materials Technologies, EarlyView.
Microfluidic engineering enables the fabrication of chitosan‐coated, melatonin‐loaded nanoemulsions with controlled release and enhanced physicochemical stability for space pharmaceutics. Interfacial biopolymer coating modulates droplet behavior under accelerated thermal stress and simulated microgravity.
Modupe Adebowale, Nguyen Van Duc Long, Philip M Williams, Volker Hessel   +3 more
wiley   +1 more source

Prednisolone Nanoprecipitation with Dean Instability Microfluidics Mixer

Nanomaterials
Dean flow and Dean instability play an important role in inertial microfluidics, with a wide application in mixing and sorting. However, most studies are limited to Dean flow in the microscale.
Yu Ching Wong, Siyu Yang, Weijia Wen
doaj   +1 more source

Viscoelastic Particle Focusing and Separation in a Spiral Channel

Micromachines, 2022
As one type of non-Newtonian fluid, viscoelastic fluids exhibit unique properties that contribute to particle lateral migration in confined microfluidic channels, leading to opportunities for particle manipulation and separation.
Haidong Feng, Alexander R. Jafek, Bonan Wang, Hayden Brady, Jules J. Magda, Bruce K. Gale   +5 more
doaj   +1 more source

Curved channel flow with stenoses and aneurysms [PDF]

, 2013
Curvature is everywhere, in man or nature made devices. Its implication on physiological flows may be as important as other inertial or viscous effects.
Cathalifaud, Patricia, Cousteix, Jean, Mauss, Jacques, Zagzoule, Mokhtar   +3 more
core  

Elastic turbulence in curvilinear flows of polymer solutions

, 2004
Following our first report (A. Groisman and V. Steinberg, $\sl Nature$ $\bf 405$, 53 (2000)) we present an extended account of experimental observations of elasticity induced turbulence in three different systems: a swirling flow between two plates, a ...
, Alexander Groisman, Balkovsky E, Batchelor G K, Bird R B, Boger D V, Burghelea T, Burghelea T Segre E Bar-Joseph I Groisman A Steinberg V, Burghelea T Segre E Steinberg V, Byars J A, Chertkov M, Doi M, Frish U, Gerashchenko S Chevallard C Steinberg V, Giesekus H W, Groisman A, Gyr A, Joo Y L, Landau L D, Larson R G, Larson R G, Lathrop D P, Lumley J, Muller S J, Shaqfeh E S G, Steinberg V Groisman A, Stokes J R, Tritton D J, Victor Steinberg, Weissenberg K   +29 more
core   +1 more source

Preservation of Extracellular Vesicle Integrity and Cargo Using Spiral Microfluidic Chip‐Based Separation

Advanced Materials Technologies, EarlyView.
A spiral microfluidic chip is compared with ultrafiltration for the separation of extracellular vesicles (EVs). The method preserves miRNA cargo and membrane integrity more effectively, resulting in intact vesicle morphology and consistent surface biomarker expression.
Huiseop Lee, Sehyeon Kim, Dasom Kong, Hye‐min Park, Hyun‐Ji Park, Jinsik Kim   +5 more
wiley   +1 more source

Ketidakstabilan Aliran Sekunder Pada Saluran Lengkung Berpenampang Persegi [PDF]

, 2010
Secondary flow is the counter rotating vortex that appears in the channel when a fluid flows in a curved channel. The occurence of this secondary flow is caused by imbalance between centrifugal force and pressure on the outer wall of the channel.
Nursubyakto, N. (Nursubyakto)
core