Results 91 to 100 of about 89,808 (272)

Forward Electrocardiogram Modeling by Small Dipoles Based on Whole-Body Electric Field Analysis

IEEE Access, 2019
Mathematical modeling of detailed cardiac function has become possible in recent years. Computer simulations have been conducted to reproduce electrical phenomena of the heart.
Tatsuhito Nakane, Takahiro Ito, Nobuaki Matsuura, Hiroyoshi Togo, Akimasa Hirata   +4 more
doaj   +1 more source

Acute Isolation of Cells from Murine Sino-atrial Node

Bio-Protocol, 2020
The cardiac conduction system allows the synchronized propagation of electrical activity through heart muscle. This is initiated by the spontaneous activity of the specialized pacemaker cells of the sino-atrial node (SAN).
Qadeer Aziz, Muriel Nobles, Andrew Tinker   +2 more
doaj   +1 more source

Detection of myocardial scar from the VCG using a supervised learning approach [PDF]

, 2013
This paper addresses the possibility of detecting presence of scar tissue in the myocardium through the in- vestigation of vectorcardiogram (VCG) characteristics.
Dima, Sofia-Maria, Gialelis, John, Maharatna, Koushik, Mazomenos, Evangelos B., Morgan, John M., Panagiotou, Christos, Rosengarten, James   +6 more
core   +1 more source

Shaping Ti3C2 MXene Nanospheres for Precision Near‐Infrared Photothermal Therapy

Advanced Functional Materials, EarlyView.
In this study, we report producing spherical MXenes via fs laser fragmentation of Ti3C2 flakes in liquid medium. The nanoparticles demonstrated pronounced light absorption and high photothermal conversion efficiencies of 68% and 63% under heating with NIR‐I and NIR‐II lasers, respectively.
Julia S. Babkova, Ivan V. Zelepukin, Konstantin G. Shevchenko, Gleb V. Tikhonowski, Lyubov V. Gorelik, Anton A. Popov, Anna S. Sogomonyan, Alina Yu. Kapitannikova, Ivan S. Kazantsev, Dmitry V. Dyubo, Daria A. Panova, Daniil I. Tselikov, Anton A. Minnekhanov, Aziz B. Mirkasymov, Georgy A. Ermolaev, Alexander V. Syuy, Gleb I. Tselikov, Aleksey V. Arsenin, Andrei V. Kabashin, Kostya S. Novoselov, Sergey M. Deyev, Valentyn S. Volkov   +21 more
wiley   +1 more source

Polymer micro-grippers with an integrated force sensor for biological manipulation [PDF]

, 2012
The development of a novel micro-system integrating SU-8 polymer micro-grippers with a tensile force sensor for handling and characterizing the mechanical properties of delicate biological materials, such as fibrils, is presented.
,, Clark, S, Le, HR, Mackay, RE, Williams, JA   +4 more
core   +2 more sources

Atomic‐Scale Light Coupling Control in Ultrathin Photonic Membranes

Advanced Functional Materials, EarlyView.
Ultrathin photonic nanomembranes provide atomic‐scale control over the coupling between incident light and high‐Q photonic modes, enabling angstrom‐level resonance tuning and strong field confinement. When integrated with TMD monolayers, they further yield enhanced light–matter interactions, offering a versatile platform for advancing quantum photonics,
Chih‐Zong Deng, Chun‐Hao Chiang, Sunhao Shi, Jui‐Han Fu, Yen‐Ju Wu, Kuniaki Konishi, Vincent Tung, Chun‐Wei Chen, Ya‐Lun Ho   +8 more
wiley   +1 more source

Cardiac‐Derived ECM Microspheres for Enhanced hiPSC‐CMs Maturation

Advanced Functional Materials, EarlyView.
Cardiac extracellular matrix microspheres derived from decellularized porcine heart provide a biomimetic 3D microenvironment for human induced pluripotent stem cell–derived cardiomyocytes (hiPSC‐CMs). This platform supports short‐ and long‐term culture, enhances structural organization, and promotes electrophysiological and functional maturation of ...
Jiazhu Xu, Joel Aboagye, Marcella Edwards, Nick Rogozinski, Yufeng Wen, Angello Huerta Gomez, Zui Pan, Ge Zhang, Huaxiao Yang, Yi Hong   +9 more
wiley   +1 more source

Complex patterns of spontaneous initiations and terminations of reentrant circulation in a loop of cardiac tissue

, 2008
A two-component model is developed that consists of a discrete loop of cardiac cells that circulates action potentials together with a cardiac pacing mechanism.
Anastasiou-Nana, Banville, Bub, C.K. Cheng, C.M. Baumgarten, Cain, Cain, Cain, Cao, Chay, Chen, Cheng, Cherry, Chialvo, Chow, Courtemanche, Courtemanche, Courtemanche, Cytrynbaum, D.M. Chan, De Bakker, Derksen, Downar, Elaydi, Fox, Fox, Frame, Gilmour, Girouard, Glass, H. Sedaghat, Hall, Harris, Hwang, Ito, J.W. Cain, Jack, Jalife, Kalb, Keener, Kocic, Koller, Koller, Krebs, Kunysz, Lampert, Liebovitch, Lown, M.A. Wood, Manios, Mickens, Mines, Mitchell, Moe, Nagai, Nolasco, Otani, Plonsey, Qu, Quan, Sedaghat, Sedaghat, Stein, Stubna, Ten Tusscher, Vinet, Watanabe, Watanabe, Winkle, Wood, Wood, Wood   +71 more
core   +1 more source

Negative tension of scroll wave filaments and turbulence in three-dimensional excitable media and application in cardiac dynamics [PDF]

, 2012
Scroll waves are vortices that occur in three-dimensional excitable media. Scroll waves have been observed in a variety of systems including cardiac tissue, where they are associated with cardiac arrhythmias.
Alonso, Sergio, Bär, Markus, Panfilov, Alexander   +2 more
core   +2 more sources

Meta‐Rod Mechanical Metamaterials With Programmable Reconfiguration

Advanced Functional Materials, EarlyView.
Existing mechanical metamaterials achieve programmable large deformations in planar square or cubic configurations, restricted by required complex boundary conditions. This research proposes a 1D metamaterial, Meta‐rod, with linear, bending, twisting, area, and volume deformation modes.
Atharva Pande, Lyes Kadem, Hang Xu
wiley   +1 more source