Results 131 to 140 of about 2,712,102 (401)
PLoS ONE, 2014 Tissue-engineered heart valves are proposed as novel viable replacements granting longer durability and growth potential. However, they require extensive in vitro cell-conditioning in bioreactor before implantation.
L. Iop +17 more
semanticscholar +1 more source
Shapeshifting Liquid Metal Droplets for Soft Fluidic Machines
Advanced Materials, EarlyView.This study presented a liquid metal shape shifting strategy which harnesses Lorentz force, surface tension and fluid instabilities to achieve autonomous fluidic power. By using a liquid metal droplet as a mobile current carrier, this strategy enables the development of low‐voltage, self‐oscillating pumps that outperform existing soft pumps.
Saba Firouznia +5 more
wiley +1 more source
Modified pseudo-elastic approach for modelling cyclic response of biological heart valves [PDF]
, 2016 A modified pseudo-elastic approach is proposed to model cyclic response on biological heart valves. The model takes into account hysteretic effects, in combination with hyperelastic anisotropic behaviour of valve leaflets, allowing reproduction of ...
Andrea, Avanzini +3 more
core
Multifunctional Fluidic Units for Emergent, Responsive Robotic Behaviors
Advanced Materials, EarlyView.A multifunctional reconfigurable fluidic unit can be used as sensor, valve and actuator is presented. A unique configuration combines the features of the three components as a Responsive self‐oscillating actuator. The remarkable versatility of the fluidic unit is demonstrated by building different robots with the same fluidic units only by varying ...
Mostafa Mousa +3 more
wiley +1 more source
Tissue-engineered heart valves
Physiological Research, 2009 Currently-used mechanical and biological heart valve prostheses have several disadvantages. Mechanical prostheses, based on carbon, metallic and polymeric components, require permanent anticoagulation treatment, and their usage often leads to adverse reactions, e.g. thromboembolic complications and endocarditis.
E, Filová +4 more
openaire +2 more sources
Physical Intelligence in Small‐Scale Robots and Machines
Advanced Materials, EarlyView.“Physical intelligence” (PI) empowers biological organisms and artificial machines, especially at the small scales, to perceive, adapt, and even reshape their complex, dynamic, and unstructured operation environments. This review summarizes recent milestones and future directions of PI in small‐scale robots and machines.
Huyue Chen, Metin Sitti
wiley +1 more source
Cirurgia valvar na infância: um novo aspecto de ação Valvular surgery in childhood: new trends
Brazilian Journal of Cardiovascular Surgery, 1992 De janeiro de 1978 a dezembro de 1991, 148 crianças (idade igual ou menor a 15 anos) foram operadas pela primeira vez, para correção de defeitos adquiridos (doença reumática) em uma das valvas cardíacas.
José Teles de Mendonça +9 more
doaj
A Review of Cavitation Uses and Problems in Medicine; Invited Lecture [PDF]
, 2006 There are an increasing number of biological and bioengineering contexts in which cavitation is either utilized to create some desired effect or occurs as a byproduct of some other process.
Brennen, Christopher E.
core
Heart Valve Tissue Engineering [PDF]
Circulation Research, 2005 Tissue-engineered heart valves have been proposed by physicians and scientists alike to be the ultimate solution for treating valvular heart disease. Rather than replacing a diseased or defective native valve with a mechanical or animal tissue–derived artificial valve, a tissue-engineered valve would be a living organ, able to respond to growth and ...
openaire +2 more sources