Results 61 to 70 of about 43,390 (300)

A 3D Human Bone and Bone Marrow‐on‐a‐Chip Model for In Vitro Bone Remodeling and Immune Cell Maintenance

open access: yesAdvanced Science, EarlyView.
This study presents a human Bone (and Bone Marrow)‐on‐a‐Chip model based on native human bone scaffolds and autologous cells. Dynamic perfusion and sequential cell seeding replicate the physiological bone remodeling process in vitro, enabling the long‐term culture of functional, mature bone marrow immune subpopulations.
Nina Stelzer   +17 more
wiley   +1 more source

Generation of Self‐Organizing Macrovascular Constructs by Bioprinting Human iPSC‐Derived Mesodermal Progenitor Cells

open access: yesAdvanced Science, EarlyView.
ABSTRACT Vascularization remains a major obstacle in tissue engineering. Here, we introduce a bioprinting strategy to generate centimeter‐scale, self‐organizing “mother vessel” constructs from iPSC‐derived hiMPCs. By optimizing bioink composition, printing was accomplished in a single‐step approach. Within one week, hiMPCs differentiated into both CD31+
Leyla E. Dogan   +5 more
wiley   +1 more source

Laminar Sinusoidal and Pulsatile Flows in a Curved Pipe

open access: yesJournal of Applied Fluid Mechanics, 2011
Two components of pulsatile flow (i.e. steady flow and sinusoidal flow) are studied separately by particle image velocimetry (PIV).The topology of the secondary flow structures, axial vorticities and transverse strain rates in a pure sinusoidal flow ...
M. Jarrahi   +2 more
doaj  

Pulsatile Physiological Control of Blood Pump-Cardiovascular System Based on Feedforward Compensation

open access: yesMicromachines
Rotary Blood Pump (RBP) is a commonly used ventricular assist device. However, the constant speed operation of the blood pump leads to a reduction of blood flow pulsatility, which triggers a series of adverse reactions.
Yanjun Bao   +3 more
doaj   +1 more source

Scaling relations of branching pulsatile flows [PDF]

open access: yesInternational Journal of Thermal Sciences, 2015
Abstract Apparently complex flow structures obey to scaling relations that enable to make it viable the study of their configuration and flow dynamics. This is the case of flow structures that exhibit several branching levels and are thought to perform optimally.
Carla Silva, A. Heitor Reis
openaire   +3 more sources

LES of non-newtonian physiological blood flow [PDF]

open access: yes, 2009
Large Eddy Simulation (LES) is performed to study the physiological pulsatile transition to turbulent non-Newtonian blood flow through a 3D model of arterial stenosis using the different non-Newtonian blood viscosity models.
Molla, M.M., Paul, M.C.
core  

In Silico Analysis of Pulsatile Flow Veno-Arterial Extracorporeal Membrane Oxygenation on Human Aorta Model [PDF]

open access: yes
Electrocardiogram (ECG)—synchronized pulsatile veno-arterial extracorporeal membrane oxygenation (V-A ECMO) is a recent development in extracorporeal therapy for patients with severe cardiogenic shock.
Heinsar, S   +5 more
core   +1 more source

Photothermal Amplification via Nanorobotic Swarming Dynamics

open access: yesAdvanced Science, EarlyView.
This study explores a novel approach to enhance photothermal therapy using magnetically regulated microswarms. It details the development of magnetic nanoparticles organized into dynamic structures that improve heat retention and conversion efficiency.
Qinglong Wang   +8 more
wiley   +1 more source

Comparison of clinical outcomes between pulsatile and non-pulsatile perfusion during cardiopulmonary bypass: A prospective randomized study

open access: yesThe Journal of ExtraCorporeal Technology
Background: The clinical benefits of pulsatile perfusion during cardiopulmonary bypass (CPB) remain a subject of debate. This study aimed to compare clinical outcomes between pulsatile and non-pulsatile perfusion during CPB in patients undergoing ...
Sharma Aakriti   +3 more
doaj   +1 more source

The Effect of Pulsatile Flow on bMSC-Derived Endothelial-Like Cells in a Small-Sized Artificial Vessel Made by 3-Dimensional Bioprinting

open access: yesStem Cells International, 2018
Replacement of small-sized vessels is still challenging. This study is aimed at investigating the possibility of small-sized artificial vessels made by 3-dimensional bioprinting and the effect of pulsatile flow on bMSC-derived endothelial-like cells ...
Kang Woog Lee   +3 more
doaj   +1 more source

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