Results 131 to 140 of about 407,209 (362)
Vitrification of Heart Valve Tissues
, 2014 Application of the original vitrification protocol used for pieces of heart valves to intact heart valves has evolved over time. Ice-free cryopreservation by Protocol 1 using VS55 is limited to small samples where relatively rapid cooling and warming rates are possible.
Lia H. Campbell +4 more
openaire +5 more sources
Smart Sampling Capsule for Capture and Detection of Enteric Pathogens in the Small Intestine
Advanced Materials Technologies, EarlyView.An ingestible smart sampling capsule for capturing asymptomatic enteric pathogens at their primary sites of interaction within the small intestine. This capability enables non‐invasive detection of early pathogen colonization within the gut environment prior to fecal shedding, providing a robust approach for pathogen surveillance and microbiome studies.
Akshay Krishnakumar +6 more
wiley +1 more source
Design and development of a large diameter high pressure fast acting propulsion valve and valve actuator [PDF]
The design and development of a large diameter high pressure quick acting propulsion valve and valve actuator is described. The valve is the heart of a major test facility dedicated to conducting full scale performance tests of aircraft landing systems ...
Srinivasan, K. V.
core +1 more source
Mathematical Modeling of Mitral Valve Dynamics: Nonlinear vs Linear Models [PDF]
, 1974 A tractable mathematical model of the valve dynamics is developed for the real time computations and in silico planning of the biomechanically consistent surgery on the ruptured chordae of the mitral valve.
Romashov, Yu. +2 more
core
3D‐Printed Unibody Microfluidic Devices for Organ‐on‐Chip Applications
Advanced Materials Technologies, EarlyView.A practical approach is demonstrated to 3D printing unibody microfluidic Organ‐on‐Chip (OoC) devices using commercial resins and desktop DLP printers. The demonstrated functional devices support 2D monolayers, 3D spheroids, and barrier tissues. With optimised design and post‐processing techniques, leak‐free, biocompatible microchannels and membranes ...
Louis Jun Ye Ong +8 more
wiley +1 more source
Relationship between fibre orientation and tensile strength of natural collagen membranes for heart valve leaflets [PDF]
, 2011 Heart valve prostheses are used to replace native heart valves which that are damaged because of congenital diseases or due to ageing. Biological prostheses made of bovine pericardium are similar to native valves and do not require any anticoagulation ...
Alvarez, L. +5 more
core +1 more source
Controlled Air Gap Formation between W and TiO2 Films via Sub‐Surface TiO2 Atomic Layer Etching
Advanced Materials Technologies, EarlyView.Delivering SiH4 and WF6 to a lined array of TiO2 films produces a thin film of tungsten while simultaneously, the underlying TiO2 is removed. When the W‐coated TiO2 structure is exposed to further etching cycles after deposition, TiO2 etching continues vertically and laterally, creating a self‐supported W structure and a vacant air gap.
Hannah R. M. Margavio +6 more
wiley +1 more source
Pregnancy Outcome after Mechanical Mitral Valve Replacement: A Prospective Study
Journal of Tehran University Heart Center, 2015 Background: Pregnant patients with mechanical heart valves require anticoagulation. The risk of bleeding and embryopathy associated with oral anticoagulants must be weighed against the risk of valve thrombosis.
Niloufar Samiei +6 more
doaj
Frontiers in PharmacologyIntroduction: The synergistic treatment of chemotherapy and photodynamic therapy (PDT) has remarkable potential in cancer therapy. However, challenges remain, such as unstable chemotherapeutic drug release, suboptimal targeting, and reduced efficacy of ...
Ying Hao +9 more
doaj +1 more source
Remarks on the Cause of Closure of the Valves of the Heart [PDF]
W. O. Markham
openalex +1 more source