Results 111 to 120 of about 268,510 (307)

The Safety of Ultrasound Contrast Agents in Children

open access: yesDiagnostics
Background/Objectives: Retrospective analysis of the safety of contrast-enhanced ultrasound in children. Methods: A retrospective analysis was conducted on children who underwent contrast-enhanced ultrasound (CEUS) examinations at the Children’s Hospital
Ruiqi Wang   +5 more
doaj   +1 more source

3D‐Printed Sulfur‐Derived Polymers With Controlled Architectures for Lithium‐Sulfur Batteries

open access: yesAdvanced Functional Materials, EarlyView.
Rheology‐guided formulation design for direct ink writing enables the fabrication of 3D sulfur copolymer cathodes with controlled architectures for lithium‐sulfur batteries. The printed electrodes exhibit multiscale porosity and high sulfur utilization, delivering enhanced electrochemical performance compared to conventional cast electrodes.
Bin Ling   +7 more
wiley   +1 more source

Capabilities of contrast-enhanced ultrasound in angioneurology

open access: yesАнналы клинической и экспериментальной неврологии, 2017
Contrast-enhanced ultrasound is a new promising direction inangio imaging, which has been increasingly used in clinical practicein recent years. We describe the history of the development ofthis method and consider in detail the basic physical and ...
A. O. Chechetkin, L. D. Druina
doaj   +1 more source

Local classification of microvascular function based on contrast-enhanced ultrasound data: a feasibility study [PDF]

open access: yes, 2015
National audienceDynamic contrast-enhanced ultrasound can detect microvascular flow changes during tumor development and antiangiogenic therapy. However, the standard method for microvascular flow estimation in tumors is global and can lead to bias in ...
Barrois, Guillaume   +7 more
core   +1 more source

Spleen‐Targeting Biomimetic Hybrid Nanocarriers for Systemic Immune Reprogramming in Colitis: RBC Membrane Vesicle‐Fused Lipid Nanoparticles

open access: yesAdvanced Functional Materials, EarlyView.
A spleen‐targeting hybrid nanoplatform (RBCMV‐LNP‐RP) harnessing erythrophagocytosis mimics senescent red blood cell clearance to achieve spleen‐specific delivery of rapamycin. This biomimetic system enables selective accumulation in splenic macrophages, orchestrating systemic immune reprogramming and promoting mucosal healing in an inflammatory bowel ...
Jun Kwon   +10 more
wiley   +1 more source

Highly asymmetric interaction forces induced by acoustic waves in coupled plate structures

open access: yes, 2015
Mutual forces can be induced between coupled structures when illuminated by external acoustic waves. In this Letter, we propose a concept of asymmetric interaction between two coupled plate-like structures, which is generated by oppositely incident plane
Fan, Xiying   +4 more
core   +1 more source

Multiscale Structuring of Hydroxyapatite via Two‐Photon Lithography of Nanocomposites

open access: yesAdvanced Functional Materials, EarlyView.
Hydroxyapatite scaffolds are of great interest in bone tissue engineering applications, ranging from 3D cell culture to regenerative medicine. Using two‐photon lithography of a transparent nanocomposite, hydroxyapatite microstructures with features ranging from submicron to centimeter‐scale are fabricated. This allows to mimic the natural bone geometry,
Leonhard Hambitzer   +6 more
wiley   +1 more source

Contrast-enhanced endoscopic ultrasound for pancreatobiliary disease

open access: yesGastrointestinal Intervention, 2016
Endoscopic ultrasound (EUS), with or without fine needle aspiration (FNA), has become an essential tool in the evaluation of pancreatobiliary diseases.
Raymond Shing-Yan Tang
doaj   +1 more source

Diagnostic accuracy of contrast-enhanced ultrasound for characterization of kidney lesions in patients with and without chronic kidney disease

open access: yesBMC Nephrology, 2017
Background Patients with chronic kidney disease are at increased risk of cystic kidney disease that requires imaging monitoring in many cases. However, these same patients often have contraindications to contrast-enhanced computed tomography and magnetic
Emily Hueywen Chang   +9 more
doaj   +1 more source

An All‐Optical Driven Bio‐Photovoltaic Interface for Active Control of Live Cells

open access: yesAdvanced Functional Materials, EarlyView.
Bio‐photovoltaic Interface (BIO‐PV‐I) for live cell manipulation is presented. BIO‐PV‐I can be activated non‐invasively and remotely to control the spatial motility, adhesion, and morphology of cells adhering to it. BIO‐PV‐I uses a patterned light‐induced electric potential in iron‐doped lithium niobate crystals whose light‐driven and reversible nature,
Lisa Miccio   +8 more
wiley   +1 more source

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