Results 61 to 70 of about 493,183 (300)

A Geometrically Transient Platform for Bioelectronic Implants

Advanced Materials, EarlyView.
Minimally invasive bioelectronic implants often compromise performance for smaller sizes. To resolve this optimization dilemma, a wireless bioelectronic implant with a transient geometry is introduced (MiFi). The origami‐inspired device miniaturizes up to sixfold for syringe insertion and autonomously unfolds post‐implantation.
Selin Olenik, John D. Goodwin, Atharv Naik, Philip Coatsworth, Ioi Chit Cheung, Farbod Amirghasemi, Anies Sohi, Ehsan Abedi, Tayeb Tadlaoui, Maral P. S. Mousavi, Andriy S. Kozlov, Victoria Salem, Andrew S. Cowburn, Firat Guder   +13 more
wiley   +1 more source

Novel biaxial tensile test for studying aortic failure phenomena at a microscopic level

BioMedical Engineering OnLine, 2013
Background An aortic aneurysm is a local dilation of the aorta, which tends to expand and often results in a fatal rupture. Although larger aneurysms have a greater risk of rupture, some small aneurysms also rupture. Since the mechanism of aortic rupture
Sugita Shukei, Matsumoto Takeo
doaj   +1 more source

ADAMTS4-specific MR probe to assess aortic aneurysms in vivo using synthetic peptide libraries

Nature Communications, 2022
New biomarkers are required to improve the assessment of aortic wall integrity and risk of rupture. Here the authors report the development of an imaging probe for ADAMTS4, which they test in an abdominal aortic aneurysm mouse model and show in vivo ...
Jan O. Kaufmann, Julia Brangsch, Avan Kader, Jessica Saatz, Dilyana B. Mangarova, Martin Zacharias, Wolfgang E. Kempf, Timm Schwaar, Marco Ponader, Lisa C. Adams, Jana Möckel, Rene M. Botnar, Matthias Taupitz, Lars Mägdefessel, Heike Traub, Bernd Hamm, Michael G. Weller, Marcus R. Makowski   +17 more
doaj   +1 more source

Rosiglitazone reduces the development and rupture of experimental aortic aneurysms

, 2009
Background— Development and rupture of aortic aneurysms involve a combination of complex biological processes. Rosiglitazone, a peroxisome proliferator-activated receptor-γ agonist, has been shown to have a broad spectrum of effects in vivo.
Jones, A., Torsney, E., Loftus, I.M., Gnaneswaran, Y., Gaze, D.C., Cockerill, G.W., Thompson, M.M., Dunkley, M., Deb, R., Nasr, H., Howe, F.   +10 more
core   +1 more source

Post-stenotic aortic dilatation. [PDF]

, 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   +2 more sources

Multifunctional Adhesive Hydrogel for Rapid Cardiac Hemostasis and Antibacterial Protection

Advanced Materials Technologies, EarlyView.
A multifunctional polyacrylamide/gelatin/tannic acid hydrogel (PGT) is presented for rapid cardiac hemostasis under wet, dynamic conditions. Surface tannic acid coating enables instantaneous wet adhesion, accelerates coagulation, and confers antibacterial activity within a single platform.
Seoha Kim, Kaeun Chae, Inseon Kim, Kye Il Joo, Chang Sup Kim, Seunghun S. Lee   +5 more
wiley   +1 more source

Contrast-enhanced magnetic resonance imaging to detect chronic aortic dissection complicated by acute aortitis

Radiology Case Reports, 2017
When chronic aortic dissection (CAD) is associated with aortic dilatation, the risk of aortic rupture increases. We report a case of CAD complicated by acute aortitis that was depicted in contrast-enhanced magnetic resonance imaging (MRI).
Kotaro Ouchi, MD, PhD, Toru Sakuma, MD, PhD, Kunihiko Fukuda, MD, PhD, Michio Yoshitake, MD, PhD   +3 more
doaj   +1 more source

Surgical Repair of a Transannular Rupture During Transfemoral Transcatheter Aortic Valve Replacement

Clinical Medicine Insights: Case Reports, 2021
Annular rupture is a rare but life-threatening complication of transcatheter aortic valve replacement (TAVR). Mortality rates are high if immediate intervention, most often necessitating surgical repair, is not performed.
Ryaan EL-Andari, Sabin J Bozso, Jimmy JH Kang, Vinod K Manikala, Michael C Moon, Mohammed Al-Aklabi, Robert C Welsh, Jeevan Nagendran   +7 more
doaj   +1 more source

Durability of Soft Pneumatic Actuators: A Review and Benchmarking Protocol

Advanced Robotics Research, EarlyView.
Lack of durability is a key challenge hindering the broad scale adoption of soft pneumatic actuators (SPAs) in automation industries. This review provides a comprehensive overview of existing research on SPA durability, introduces a standardized durability benchmarking protocol to consolidate the testing of SPAs, and outlines promising directions for ...
Dickson Chiu Yu Wong, Yucheng Luo, Rob Bernardus Nicolaas Scharff   +2 more
wiley   +1 more source

Transcatheter aortic-valve replacement for inoperable severe aortic stenosis. [PDF]

, 2012
BACKGROUND: Transcatheter aortic-valve replacement (TAVR) is the recommended therapy for patients with severe aortic stenosis who are not suitable candidates for surgery. The outcomes beyond 1 year in such patients are not known.
Makkar, Raj R, Dewey, Todd M, Pocock, Stuart, Brown, David L, Pichard, Augusto D, Bowers, Bruce, Siegel, Robert J, Smith, Craig R, Webb, John G, Tuzcu, Murat, Moses, Jeffrey W, Williams, Matthew R, Babaliaros, Vasilis C, Thourani, Vinod H, Kapadia, Samir, Svensson, Lars G, Jilaihawi, Hasan, Kodali, Susheel, Bavaria, Joseph E, MD, Fontana, Gregory P, Akin, Jodi J, Douglas, Pamela S, Bavaria, Joseph E, Herrmann, Howard C, Leon, Martin B, PARTNER Trial Investigators, Anderson, William N   +26 more
core   +1 more source