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Lattice Anisotropy-Driven Reduction of Phonon Velocities in Black Phosphorus.
ACS Nano
January 2025
James Franck Institute, University of Chicago, Chicago, Illinois 60637, United States.
Phonon dynamics and transport determine how heat is utilized and dissipated in materials. In 2D systems for optoelectronics and thermoelectrics, the impact of nanoscale material structure on phonon propagation is central to controlling thermal conduction. Here, we directly observe in-plane coherent acoustic phonon propagation in black phosphorus (BP) using ultrafast electron microscopy.
View Article and Find Full Text PDFCombined Nanodrops Imaging and Ultrasound Localization Microscopy for Detecting Intracerebral Hemorrhage.
Ultrasound Med Biol
January 2025
Beckman Institute for Advanced Science and Technology, University of Illinois Urbana-Champaign, Urbana, IL, USA; Department of Electrical and Computer Engineering, University of Illinois Urbana-Champaign, Urbana, IL, USA; Department of Bioengineering, University of Illinois Urbana-Champaign, Urbana, IL, USA; Neuroscience Program, University of Illinois Urbana-Champaign, Urbana, IL, USA. Electronic address:
Objective: Advanced imaging methods are crucial for understanding stroke mechanisms and discovering effective treatments to reduce bleeding and enhance recovery. In pre-clinical in vivo stroke imaging, MRI, CT and optical imaging are commonly used to evaluate stroke outcomes in rodent models. However, MRI and CT have limited spatial resolution for rodent brains, and optical imaging is hindered by limited imaging depth of penetration.
View Article and Find Full Text PDFDeep learning-based anterior segment identification and parameter assessment of primary angle closure disease in ultrasound biomicroscopy images.
BMJ Open Ophthalmol
January 2025
Department of Ophthalmology, Peking University People's Hospital, Beijing, China
Purpose: To develop an artificial intelligence algorithm to automatically identify the anterior segment structures and assess multiple parameters of primary angle closure disease (PACD) in ultrasound biomicroscopy (UBM) images.
Design: Development and validation of an artificial intelligence algorithm for UBM images.
Methods: 2339 UBM images from 592 subjects were collected for algorithm development.
Low-cost microvascular phantom for photoacoustic imaging using loofah.
J Biomed Opt
January 2025
Washington University in St. Louis, Department of Biomedical Engineering, St. Louis, Missouri, United States.
Significance: Existing photoacoustic phantoms are unable to mimic complex microvascular structures with varying sizes and distributions. A suitable material with structures that mimic intricate microvascular networks is needed.
Aim: Our aim is to introduce loofah as a natural phantom material with complex fiber networks ranging from 50 to , enabling the fabrication of phantoms with controlled optical properties comparable to those of human microvasculature.
A novel frameshift variant in the gene is associated with recessive oculodentodigital dysplasia.
Ophthalmic Genet
January 2025
Department of Ophthalmology, Hospital das Clínicas - Empresa Brasileira de Serviços Hospitalares, Federal University of Pernambuco, Recife, Brazil.
Background: Oculodentodigital dysplasia (ODDD) is a rare syndrome that causes a constellation of facial, ophthalmic, dental, and limb abnormalities. Variants in the gap junction alpha-1 () gene have been described in patients with ODDD. Hereby we present the ocular manifestations in a patient with recessive ODDD due to a novel homozygous frameshift variant in .
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