Results 71 to 80 of about 1,847 (202)
Deep optoacoustic localization microangiography of ischemic stroke in mice
Super-resolution optoacoustic imaging of microvascular structures deep in mammalian tissues has so far been impeded by strong absorption from densely-packed red blood cells.
Xosé Luís Deán-Ben +15 more
doaj +1 more source
Ultrafast Acousto-Plasmonics in Gold Nanoparticles Superlattice
We report the investigation of the generation and detection of GHz coherent acoustic phonons in plasmonic gold nanoparticles superlattices (NPS). The experiments have been performed from an optical femtosecond pump-probe scheme across the optical plasmon
Ayouch, A. +7 more
core +1 more source
Photoacoustic tomography with novel optical contrast agents based on gold nanocages or nanoparticles containing near-infrared dyes [PDF]
Poly(ethylene glycol)-coated Au nanocages have been evaluated as a potential near-infrared (NIR) contrast agent for photoacoustic tomography (PAT). Previously, Au nanoshells were found to be an effective NIR contrast agent for PAT; however, Au nanocages,
Skrabalak, Sara +6 more
core +1 more source
Cell‐in‐Shell Metacells in Single‐Cell Nanoencapsulation
Metacells represent the next generation of living cell‐in‐shell architectures, chemically engineered through single‐cell nanoencapsulation and characterized by three functional hallmarks: reconfigurability, loadability, and motility. Single‐cell nanoencapsulation (SCNE) enables the direct integration of synthetic materials with living cells, forming ...
Duc Tai Nguyen +4 more
wiley +1 more source
We investigate theoretically the photoacoustic generation by a gold nanosphere in water in the thermoelastic regime. Specifically, we consider the long-pulse illumination regime, in which the time for electron-phonon thermalisation can be neglected and ...
Bossy, Emmanuel +2 more
core +3 more sources
By precisely engineering the geometry of a fiber‐based optical resonator, the interaction between confined light and external ultrasound waves is significantly amplified without sacrificing light confinement, boosting the ultrasound detection sensitivity beyond 0.5 mPa/√Hz.
Tai‐Anh La +2 more
wiley +1 more source
Functional photoacoustic microscopy in vivo [PDF]
Functional photoacoustic microscopy is a hybrid imaging technique that detects laser induced photoacoustic waves to image biological tissues in three dimensions.
Maslov, Konstantin +4 more
core
Bacterial Extracellular Vesicles in Biomedical Research and Clinical Translation
Bacterial membrane vesicle biomedical applications. ABSTRACT Bacterial Extracellular Vesicles (bEVs) are lipid (single‐ or double‐bilayer) nanostructures secreted by virtually all bacteria that play fundamental roles in intercellular communication and have emerged as powerful, multifunctional tools in biomedicine. Their intrinsic ability to encapsulate
Alejandro Arce‐Rodríguez +2 more
wiley +1 more source
Optoacoustics is a promising modality for biomedical imaging, sensing, and monitoring with high resolution and contrast. In this paper, we present an overview of our studies for the last two decades on optoacoustic effects in tissues and imaging capabilities of the optoacoustic technique.
openaire +1 more source
Rigid Hollow Microparticles for Enhanced Focused Ultrasound Treatment Under Optoacoustic Guidance
By combining focused ultrasound (FUS) and acoustically active hollow borosilicate microparticles (HBMPs), we demonstrate tunable control over interparticle dynamics and their localized thermal energy deposition. Modulation of acoustic frequency and particle concentration tailors the energy delivery, allowing adaptive, material‐based regulation of ...
Nima Mahkam +6 more
wiley +1 more source

