Results 71 to 80 of about 121,770 (258)

Recent advances in multifunctional soft robots: A materials–structures–systems co‐design perspective for synergistic integration

FlexMat, EarlyView.
Abstract Soft robots, engineered from highly compliant materials, offer superior adaptability and safety in unstructured environments compared to their rigid counterparts. Recent advancements, fueled by bio‐inspiration and material programmability, have led to the rapid co‐evolution of their core modules: actuation, sensing, protection, energy, and ...
Qiulei Liu, Zicao Peng, Chong Sun, Haitao Yang   +3 more
wiley   +1 more source

Válvula mecânica em carbono, de disco basculante, com revestimento de material biológico: princípios e desenvolvimento Pivoting disc carbon mechanical valve covered with biological material: principles and development

Brazilian Journal of Cardiovascular Surgery, 1995
INTRODUÇÃO: após estudo experimental de implante de material biológico e carbono em átrio esquerdo e aorta, foi desenvolvida uma nova prótese, primeira válvula de carbono feita inteiramente no País.
Hélio Pereira de Magalhães, Ana Lúcia Machado, Artur J Raoul, Ary Fernandes Soutello Filho, Jairo Vaidergorn, José Alberto dos Santos, Márcia Valéria A. P Souza, Maria Paula Cruz   +7 more
doaj  

Profile of Heart Donors from the Human Valve Bank of the Santa Casa de Misericórdia de Curitiba

Brazilian Journal of Cardiovascular Surgery
Introduction: Human heart valves are used as replacement valves and have satisfactory functional results compared with conventional prostheses. Objective: Characterize the profile of effective heart donors from the human valve bank of the santa casa de ...
Renata Maria Ferreira, Marise Teresinha Brenner Affonso da Costa, Osiris Canciglieri Junior, Ângelo Márcio Oliveira Sant'Anna   +3 more
doaj   +1 more source

A Pulsatile Bioreactor for Conditioning of Tissue-Engineered Cardiovascular Constructs under Endoscopic Visualization

Journal of Functional Biomaterials, 2012
Heart valve disease (HVD) is a globally increasing problem and accounts for thousands of deaths yearly. Currently end-stage HVD can only be treated by total valve replacement, however with major drawbacks.
Bassil Akra, Erich Wintermantel, Christian Hagl, Bruno Reichart, Trixi Hollweck, Stefan Pfeifer, Fabian König   +6 more
doaj   +1 more source

Mono‐ and Bivalent Poly(iso‐butylene)‐Alanines for Drug‐Delivery of Nimodipine and Triamcinolone Acetonide

Macromolecular Rapid Communications, EarlyView.
Mono‐ and bivalent‐, alanine‐modified poly‐iso‐butylenes, folding into beta‐sheets, were prepared by living carbocationic polymerization and subsequent endgroup modification. These PIB‐conjugates are useful as solid polymers for the drug release of triamcinolone and nimodipine. ABSTRACT Poly‐iso‐butylene (PIB) is a well known biocompatible polymer with
Philipp S. Hilgeroth, Julius F. Butter, Wolfgang H. Binder   +2 more
wiley   +1 more source

Bioprótese aórtica porcina "Stentless": acompanhamento clínico a médio prazo Porcine Stentless heart valve substitutes: technical and clinical mid-term follow-up

Brazilian Journal of Cardiovascular Surgery, 1994
O presente trabalho visa apresentar os resultados obtidos a médio prazo com o uso da prótese valvar aórtica porcina sem suporte "Stentless" Biocor. De maio de 1990 a dezembro de 1993,120 pacientes foram submetidos à troca de valva aórtica usando-se a ...
Mário O Vrandecic, Bayard Gontijo Filho, Fernando Antônio Fantini, João Alfredo Paula E Silva, Ozanan C Oliveira, Idail Costa Martins Jr, Juscelino Teixeira Barbosa, Roberto M Oliveira, Sandra O. S Avelar, Hebert C Miotto, Mauricio R Barbosa, Érika Vrandecic, Ektor Vrandecic   +12 more
doaj  

Characteristics, properties and limitations of per‐ or polyfluoroalkyl substances (PFASs) and fluoropolymers

Polymer International, EarlyView.
An overview and categorization of man‐made per‐ or polyfluoroalkyl substances (PFASs) including low‐molar‐mass and high‐molar‐mass fluorochemicals, and their international regulations is presented. Though certain PFASs are toxic, bioaccumulative and cross the human cellular membranes, others, such as fluoropolymers, are safe, reliable and involved in ...
Bruno Améduri
wiley   +1 more source

Evidence Suggests Prophylactic Antibiotics May Be Unnecessary in Anorectal Surgery—A Systematic Review and Meta‐Analysis

World Journal of Surgery, EarlyView.
Current evidence does not support the routine use of prophylactic antibiotics in uncomplicated anorectal procedures. However, the certainty of evidence is limited by small sample sizes, methodological heterogeneity, and limited number of available studies. Large‐scale randomized trials are required to strengthen this evidence base.
James Jin, Velia Men, Maggie Wang, Andrew Hill   +3 more
wiley   +1 more source

Estudo multicêntrico da bioprótese porcina Labcor Multicenter study with porcine bioprosthetic Labcor valve

Brazilian Journal of Cardiovascular Surgery, 1988
No período de 1984-1988, foram estudados 514 pacientes, 288 do sexo feminino e 226 do sexo masculino, com idade de 36,8 ± 16,5 anos, submetidos a cirurgia cardíaca valvar com implante de bioprótese porcina Labcor.
Fernando A Lucchese, João Ricardo Santana, Ivo A Nesralla, Cláudio A Salles, Carlos S Figueiroa, Nílcio Cunha Lobo, Dielson T Sampaio, José Wanderley Neto, Rita de Cássia Veras, Gilvan Dourado, Daniel Torres, Antônio De Biaze, Josalmir Melo do Amaral, Orlando Gomes de Oliveira, Jefferson Chaves, José Telles de Mendonça   +15 more
doaj  

Case Series on Prosthetic Valve Thromboses Treated with Intravenous Thrombolysis at a Tertiary Teaching Hospital in Nairobi – Kenya

Journal of Kenya Association of Physicians
Valvular heart disease is a significant global health issue, particularly in developing countries where Rheumatic Heart Disease (RHD) is the leading cause.
John Otieno Odhiambo, Salim Salim Abdallah, Leonard Mzee Ngunga   +2 more
doaj   +1 more source