Results 101 to 110 of about 1,144,205 (351)

Emerging 2D Materials and Their Hybrid Nanostructures for Label‐Free Optical Biosensing: Recent Progress and Outlook

open access: yesAdvanced Functional Materials, EarlyView.
This review highlights recent advances in label‐free optical biosensors based on 2D materials and rationally designed mixed‐dimensional nanohybrids, emphasizing their synergistic effects and novel functionalities. It also discusses multifunctional sensing platforms and the integration of machine learning for intelligent data analysis.
Xinyi Li, Yonghao Fu, Yuehe Lin, Dan Du
wiley   +1 more source

Electroactive Liquid Crystal Elastomers as Soft Actuators

open access: yesAdvanced Functional Materials, EarlyView.
Electroactive liquid crystal elastomers (eLCEs) can be actuated via electromechanical, electrochemical, or electrothermal effects. a) Electromechanical effects include Maxwell stress, electrostriction, and the electroclinic effect. b) Electrochemical effects arise from electrode redox reactions.
Yakui Deng, Min‐Hui Li
wiley   +1 more source

Strain imaging using cardiac magnetic resonance

open access: yesHeart Failure Reviews, 2017
The objective assessments of left ventricular (LV) and right ventricular (RV) ejection fractions (EFs) are the main important tasks of routine cardiovascular magnetic resonance (CMR).
A. Scatteia   +2 more
semanticscholar   +1 more source

Nanomaterial‐Enhanced Biosensing: Mechanisms and Emerging Applications

open access: yesAdvanced Healthcare Materials, EarlyView.
Nanomaterial integration transforms biosensor capabilities through enhanced signal transduction, sensitivity, and selectivity. This review analyzes how nanoscale materials—from nanoparticles to nanosheets—leverage unique physicochemical properties to revolutionize electrochemical, optical, and electrical biosensing.
Younghak Cho   +3 more
wiley   +1 more source

Segmentation of Myocardial Boundaries in Tagged Cardiac MRI Using Active Contours: A Gradient-Based Approach Integrating Texture Analysis [PDF]

open access: yes, 2009
The noninvasive assessment of cardiac function is of first importance for the diagnosis of cardiovascular diseases. Among all medical scanners only a few enables radiologists to evaluate the local cardiac motion. Tagged cardiac MRI is one of them.
Histace, Aymeric   +2 more
core   +5 more sources

Multifunctional Biomedical Devices with Closed‐Loop Systems for Precision Therapy

open access: yesAdvanced Healthcare Materials, EarlyView.
This review explores two major types of closed‐loop therapeutic systems: self‐sustained and externally triggered. It highlights recent advances in stimuli‐responsive materials, integrated bioelectronics, and data‐driven control strategies, offering insight into emerging strategies for personalized, responsive drug delivery.
Yixuan Leng, Rujie Sun
wiley   +1 more source

Masas cardiacas: multimodalidad-resonancia magnética cardiaca

open access: yesRevista Colombiana de Cardiología, 2019
Resumen: La resonancia magnética cardiaca desempeña un papel fundamental en el diagnóstico, la definición y la evaluación de las masas cardiacas debido a su amplio campo de visión, resolución de contraste, versatilidad en planos de imagen y capacidad ...
Alexander Cely Cely   +2 more
doaj   +1 more source

Battery‐Free Dual‐Channel Wireless Neurostimulator Using Passive Circuitry for Neuropathic Pain Modulation

open access: yesAdvanced Healthcare Materials, EarlyView.
A compact, wireless neural stimulator featuring a novel tapping inductor enables selective and independent stimulation of the motor cortex in rats via a single receiver coil. This minimally invasive system effectively reduces neuropathic pain through targeted cortical activation, offering a new avenue for bioelectronic pain therapies and advancing ...
Jeongju Moon   +9 more
wiley   +1 more source

The Different Facets of Myocarditis by Cardiac Magnetic Resonance Imaging

open access: yesHeart Views
Myocarditis is an inflammatory condition affecting the myocardium and may have different etiologies. Patients usually present with chest pain and elevated levels of cardiac enzymes, mainly troponin. Cardiac magnetic resonance (CMR) imaging has emerged as
Reem Alwasiah   +5 more
doaj   +1 more source

Abnormal elevation of myocardial necrosis biomarkers after coronary artery bypass grafting without established myocardial infarction assessed by cardiac magnetic resonance

open access: yesJournal of Cardiothoracic Surgery, 2017
Background The diagnosis of peri-procedural myocardial infarction is complex, especially after the emergence of high-sensitivity markers of myocardial necrosis. Methods In this study, patients with normal baseline cardiac biomarkers and formal indication
Fernando Teiichi Costa Oikawa   +12 more
doaj   +1 more source

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