Results 61 to 70 of about 2,830,227 (287)

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, Andrew R Hudson, Daniel J. Shiwarski, J. Tashman, Thomas Hinton, S. Yerneni, J. Bliley, Phil Campbell, A. Feinberg   +8 more
semanticscholar   +1 more source

Using Long‐Chain Polymechanophores to Explore the Differences in Mechanoactivation During Nozzle Flow and Ultrasonication

Advanced Functional Materials, EarlyView.
Flow through a nozzle is a common component of most fluid‐based polymer processing techniques such as spray drying, inkjet printing, extrusion. An ultrahigh molecular weight multi‐mechanophore system is used to probe the differences in the distribution of mechanical activation observed between nozzle flow and ultrasonication; the gold standard ...
Niamh Willis‐Fox, Maggie Horst, Etienne Rognin, Yan Xia, Ronan Daly   +4 more
wiley   +1 more source

Análise do estudo anatomopatológico de pacientes submetidos a cirurgia valvar no InCór - HC FMUSP Anatomopathological study of patients submitted to valvar surgery at InCór-HC FMUSP

Brazilian Journal of Cardiovascular Surgery, 1992
Das 44 necropsias realizadas em pacientes submetidos a cirurgia valvar no ano de 1990 no InCór, foram encontradas como causas clínicas de óbito nos pacientes mitrais: coagulopatia e sangramento em 11 casos; baixo débito em 7; choque cardiogênico em 5 ...
Hélio A Fabri, Pablo M. A Pomerantzeff, Ana Cristina M Monteiro, Paulo Gutierrez, Raimunda Violante, José Otávio C Auler Júnior, Max Grinberg, Geraldo Verginelli, Adib D Jatene   +8 more
doaj  

Mechanistic Insights into Bioprosthetic Heart Valve Calcification and Anti-Calcification Strategies

Reviews in Cardiovascular Medicine
Prosthetic heart valves are crucial for treating valvular heart disease and serve as substitutes for native valves. Bioprosthetic heart valves (BHVs) are currently the most common type used in clinical practice.
Yuxiao Yang, Limin Lan, Yi Lin
doaj   +1 more source

From Clinic to Computation: Multiscale Bioengineering Strategies for Durable Biological Aortic Valve Replacements

Advanced Functional Materials, EarlyView.
Bioprosthetic aortic valves have revolutionized the treatment of aortic stenosis, but their durability is limited by structural valve deterioration (SVD). This review focuses on the pericardial tissue at the heart of these valves, examining how its mechanical properties and calcification drive fatigue and failure.
Gabriele Greco, Pierfrancesco Gaziano, Serena Anglese, Simone Morganti, Carlo de Vincentiis, Ferdinando Auricchio, Michele Marino, Michele Conti   +7 more
wiley   +1 more source

Cirurgia valvar em crianças e jovens: resultados de 131 casos Heart valve surgery in children and adolescents

Brazilian Journal of Cardiovascular Surgery, 1990
No período de janeiro de 1983 a dezembro de 1988, 131 pacientes, com idade igual ou inferior a 15 anos, foram submetidos a cirurgia valvar, 74 (56%) de etiologia adquirida e 57 (44%) de etiologia congênita.
Luís Roberto Gerola, Pablo M. A Pomerantzeff, Paulo M Pêgo-Fernandes, Noedir A. G Stolf, Miguel Barbero-Marcial, Munir Ebaid, Rachel Snitcowsky, Max Grinberg, Geraldo Verginelli, Adib D Jatene   +9 more
doaj  

Relationship between Calcium, Phosphorous and Parathoromone with Calcification of Heart Valves In Dialyzed Patients In Qom, 1385-1386 [PDF]

Majallah-i Dānishgāh-i ̒Ulūm-i Pizishkī-i Qum, 2008
Background and ObjectivesMetastatic calcification is usually found in patients with chronic renal failure and hemodialyzed patients. Heart calcification becomes worse in hemodialyzed patients due to several factors.
S.M. Mousavi Movahed, Y. Tabaraie, K.H. Alipour Nodoushan, M. Zakarianejad   +3 more
doaj  

Telocytes in human heart valves

Journal of Cellular and Molecular Medicine, 2014
Valve interstitial cells (VICs) are responsible for maintaining the structural integrity and dynamic behaviour of the valve. Telocytes (TCs), a peculiar type of interstitial cells, have been recently identified by Popescu's group in epicardium ...
Yang Yang, Wei Sun, Sean M. Wu, Junjie Xiao, X. Kong   +4 more
semanticscholar   +1 more source

Additive Manufacturing of NiTi Shape Memory Alloys for Elastocaloric Applications: A Review

Advanced Functional Materials, EarlyView.
Additive manufacturing enables complex NiTi architectures that overcome key limitations in elastocaloric refrigeration, including poor heat transfer and high mechanical work input. This review surveys recent advances in LPBF‐ and DED‐fabricated NiTi shape memory alloys for elastocaloric applications, highlighting process–structure–performance ...
Ignatius Andre Setiawan, Mohammad Mehrali, Jaka Tušek, Shiva Mohajerani, Xiebin Wang, Dermot Brabazon, Mohammad Elahinia, Mehrshad Mehrpouya   +7 more
wiley   +1 more source

Atomic‐Level Ionic Displacement Polarization Enhanced Piezocatalytic Hydrogen Evolution in Covalent Organic Frameworks

Advanced Functional Materials, EarlyView.
Two isomorphic COFs were synthesized and compared, including an amphoteric COF (SQ‐TAPT) and a neutral COF (PDA‐TAPT). The ionic bonds in SQ‐TAPT introduce more Born effective charges, thereby enhancing its ionic displacement polarization. Experimental and theoretical calculations demonstrated that SQ‐TAPT exhibited higher polarity and stronger ...
Ge Yan, Xiaodong Sun, Kailai Zhang, Shuai Zhang, Haijun Hu, Hui Li, Zhenglong Li, Hongwei Huang, Liqun Ye, Jiyang Li, Yunling Liu, Hongge Pan, Tianyi Ma   +12 more
wiley   +1 more source