Results 111 to 120 of about 2,544,811 (316)
3D bioprinting of collagen to rebuild components of the human heart
Science, 2019 If I only had a heart 3D bioprinting is still a fairly new technique that has been limited in terms of resolution and by the materials that can be printed. Lee et al.
Andrew Lee +8 more
semanticscholar +1 more source
3D Wiring Microelectrodes in a PMMA Microfluidic Device by Vacuum Filling Method
Advanced Materials Technologies, EarlyView.This paper proposes a method for fabricating 3D wiring microelectrodes in arbitrary designs within 3D‐printed microfluidics. By attaching a PDMS lid and using vacuum filling, low‐melting‐point alloy (LMA) is introduced into microchannels. This enables the creation of 50 µm microelectrodes, including complex shapes.
Keisuke Sugahara +4 more
wiley +1 more source
Antiplatelet and anticoagulation for patients with prosthetic heart valves.
Cochrane Database of Systematic Reviews, 2013 BACKGROUND Patients with prosthetic heart valves are at increased risk for valve thrombosis and arterial thromboembolism. Oral anticoagulation alone, or the addition of antiplatelet drugs, has been used to minimise this risk.
D. Massel, S. Little
semanticscholar +1 more source
Advanced Materials Technologies, EarlyView.This study presents a microfluidic wet spinning technique for producing ultrathin, templated collagen sheets with hierarchical organization at the microscale. The aligned collagen sheets replicate strain‐stiffening behavior associated with native cardiovascular tissues, sup cell attachment and contraction, and enable biofabrication of load‐bearing ...
Yuming Zhang +6 more
wiley +1 more source
A new technological system to revolutionize the management of valvular heart diseases: transcatheter aortic valve for the treatment of aortic stenosis [PDF]
arXiv, 2019 The goal of this study is a technology analysis of a revolution for the management of valvular heart diseases given by new technological system based on transcatheter artificial aortic valve, a delivery catheter and a loading system for the treatment of aortic stenosis (a narrowing of the aortic valve because of calcium build up that restricts blood ...
arxiv
Advanced Materials Technologies, EarlyView.This research presents an easy to fabricate, low‐cost, flexible piezoresistive deformation sensor comprised of a carbon nanotube, few‐layer graphene, and polydimethylsiloxane composite. The sensor detects deformations and vibrations up to 600 Hz with 0.1% strain sensitivity from stiff and soft targets in dry and wet environments.
Sinan Candan +9 more
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
Advanced Materials Technologies, EarlyView.This article investigates a sustainable approach to producing new powders for selective laser sintering by using high‐pressure homogenization to micronize biopolymers. The approach yields flowable, thermally stable particles with sub‐rounded morphology, enabling 3D printing of dense components with complex geometries.
Alberto Giubilini +5 more
wiley +1 more source
Sex-dependent aortic valve pathology in patients with rheumatic heart disease.
PLoS ONE, 2017 BackgroundRheumatic heart disease is an autoimmune disease caused by group A streptococci infection and frequently affects the aortic valve. Sex differences are common in the disease progression, treatment, and outcome. However, little is known about the
Feng Xiao +7 more
doaj +1 more source