Results 91 to 100 of about 89,308 (311)

Advances in Electroactive Liquid Crystal Elastomers for Intelligent Robotics and Electronics

Advanced Robotics Research, EarlyView.
Electroactive liquid crystal elastomers (eLCEs) integrate molecular anisotropy with electrical functionality to enable programmable actuation and reconfigurable electronics. This review classifies eLCEs into robotic actuators and adaptive electronics, summarizes key actuation mechanisms, and highlights fabrication strategies that bridge materials to ...
Kavita Ramesh Rathod, Sena Chon, Jae Hyuk Hwang, Sung Hyuk Park, Woohwa Lee, Joonmyung Choi, Shi Hyeong Kim, Seung Hwan Ko, Changsoon Choi, Seon Jeong Kim, Dong‐Gyun Kim, Habeom Lee, Kyung Gook Cho, Woon‐Hong Yeo, Hyun Kim   +14 more
wiley   +1 more source

Post-stenotic aortic dilatation.

, 2006
Aortic stenosis is the most common valvular heart disease affecting up to 4% of the elderly population. It can be associated with dilatation of the ascending aorta and subsequent dissection.
Jahangiri Marjan, Marjan Jahangiri, Wilton, E, Emma Wilton, Jahangiri, M, Wilton Emma   +5 more
core   +1 more source

Investigations of the Microstructural and Mechanical Properties of the Four Heart Valves [PDF]

, 2021
The four heart valves (HVs) regulate the unidirectional flow of blood throughout the four chambers of the heart. The artioventricular heart valves (AHVs) enforce this unidirectional flow between each atrium and the respective ventricle, while the ...
Hudson, Luke
core  

Artificial heart valves

, 2017
The topic of this bachelor thesis is artificial heart valves and it contains some specific features of the cardiovascular system. Furthermore, it deals with the rheology of blood, summarises the types of artificial heart valves used and values their ...
Ruzsík, Erik
core   +1 more source

Immune Shielding of Human Heart Valves

JACC: Basic to Translational Science
Summary: Children born with defective heart valves require multiple donor valve replacements throughout life, because these cannot grow and can cause early failure through immune degeneration.
Marijn C. Peters, PhD, Arnaud Zaldumbide, PhD, Esmee J. Groeneveld, BSc, Martijn J.W.E. Rabelink, BSc, Janneke H. Peerlings, MSc, Antoon van den Bogaerdt, MSc, Carlijn V.C. Bouten, PhD, Rob C. Hoeben, PhD, Marie-Jose Goumans, PhD, Abraham van Wijk, MD, PhD   +9 more
doaj   +1 more source

Selective Inhibition of Integrin β3 Topology Provides a Safer Antithrombotic Strategy

Advanced Science, EarlyView.
Current integrin αIIbβ3 inhibitors effectively reduce thrombosis but also increase bleeding risk. During thrombosis, high shear blood flow can directly activate the integrin αIIbβ3 via a distinct topological change in the β3 transmembrane domain, independent of hemostatic platelet signaling.
Joonha Lee, Chul‐Gyun Lim, Pothiappan Vairaprakash, Jong‐Min Kim, Jiyoon Kim, Ji‐Young Park, Klaus M. Hahn, Hyunbo Shim, Hae Woong Choi, Tobias S. Ulmer, Soon Jun Hong, Chungho Kim   +11 more
wiley   +1 more source

Valve-in-valve transcatheter aortic valve implantation for degenerated bioprosthetic heart valves

, 2011
We sought to analyze outcomes of patients with degenerated surgically implanted bioprosthetic heart valves undergoing valve-in-valve (viv) transcatheter aortic valve implantation (TAVI)
Walther, Thomas, Thierry Carrel, Erbel, Raimund, Helmut Baumgartner, Kahlert, Philipp, Markus Ferrari, Treede, Hendrik, Carrel, Thierry, Mehta, Rajendra H, Boekstegers, Peter, Ferrari, Markus, Rajendra H. Mehta, Möllmann, Helge, Mehta, Rajendra H., Philipp Kahlert, Holger Eggebrecht, Thielmann, Matthias, Helge Möllmann, Philipp Lange, Hendrik Treede, Thomas Walther, Eggebrecht, Holger, Schäfer, Ulrich, Babin-Ebell, Jörg, Baumgartner, Helmut, Jörg Babin-Ebell, Matthias Thielmann, Peter Boekstegers, Raimund Erbel, Lange, Philipp, Ulrich Schäfer   +30 more
core   +1 more source

Developmentally Inspired Bioprinting of Nascent Multicellular Human Heart Tissue Through in Situ Differentiation and Morphogenesis of iPSCs

Advanced Science, EarlyView.
A developmentally inspired bioprinting approach enables the fabrication of pluripotent tissues that undergo shape‐morphing and in situ cardiac lineage specification. This method employs embedded bioprinting to deposit iPSCs within soft granular hydrogels to create pluripotent tissue constructs that undergo cell‐mediated shape morphogenesis.
Ankita Pramanick, Juhi Chakraborty, Orlaith Kennedy, Hey Wei Wong, Sogol Kianersi, Daniel Kelly, Vasileios Sergis, Abhay Pandit, Andrew C. Daly   +8 more
wiley   +1 more source

Postpartum anticoagulation in women with mechanical heart valves

, 2018
Roxanna A Irani,1,* Ann Santa-Ines,2,* Robert W Elder,2 Heather S Lipkind,1 Michael J Paidas,1 Katherine H Campbell1 1Department of Obstetrics, Gynecology and Reproductive Sciences, Section of Maternal-Fetal Medicine, Yale University School of Medicine,
Elder RW, Lipkind HS, Irani RA, Paidas MJ, Campbell KH, Santa-Ines A   +5 more
core  

Construction of a MOF‐Based Snap‐Top Delivery Nanosystem for Powerful Dual‐Responsive Synergistic Colitis Treatment

Advanced Science, EarlyView.
A snap‐top delivery nanosystem based on an azobenzene metal–organic framework achieves targeted release of 6‐mercaptopurine via acid‐stable frameworks and hypoxia/pH dual‐responsive β‐cyclodextrin gates. This multifunctional platform integrates three synergistic mechanisms: precision drug delivery to inflammatory sites, intrinsic antioxidant properties
Xin Li, Miao Xu, Heran Li, Huan Jiang, Xin Wang, Lianjun Ma, Ying‐Wei Yang   +6 more
wiley   +1 more source