Results 71 to 80 of about 13,784 (246)
Ultra-broadband axicon transducer for optoacoustic endoscopy
Scientific Reports, 2021 Image performance in optoacoustic endoscopy depends markedly on the design of the transducer employed. Ideally, high-resolution performance is required over an expanded depth of focus.
Zakiullah Ali +2 more
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Laser &Photonics Reviews, Volume 20, Issue 7, 6 April 2026.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
Photoacoustics, 2016 Similar to pulse-echo ultrasound, optoacoustic imaging encodes the location of optical absorbers by the time-of-flight of ultrasound waves. Yet, signal generation mechanisms are fundamentally different for the two modalities, leading to significant ...
Xosé Luís Deán-Ben, Daniel Razansky
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Graphics processing unit accelerating compressed sensing photoacoustic computed tomography with total variation [PDF]
, 2020 Photoacoustic computed tomography with compressed sensing (CS-PACT) is a commonly used imaging strategy for sparse-sampling PACT. However, it is very time-consuming because of the iterative process involved in the image reconstruction.
Bai, Yuanyuan +5 more
core
Bacterial Extracellular Vesicles in Biomedical Research and Clinical Translation
Microbial Biotechnology, Volume 19, Issue 4, April 2026.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
Imaging of blood flow and oxygen state with a multi-segment optoacoustic ultrasound array
Photoacoustics, 2018 Changes in hemodynamic parameters are directly linked to biological function and physiological activity. Characterization of hemodynamics is commonly performed by Doppler ultrasound, which provides accurate measurements of blood flow velocity.
Elena Merčep +2 more
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, 2015 Focusing light through turbid media presents a highly fascinating challenge in modern biophotonics. The unique capability of optoacoustics for high resolution imaging of light absorption contrast in deep tissues can provide a natural and efficient ...
Deán-Ben, X. Luís +2 more
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Journal of Innovative Optical Health Sciences, 2011 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.
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Investigation of iterative image reconstruction in three-dimensional optoacoustic tomography
, 2012 Iterative image reconstruction algorithms for optoacoustic tomography (OAT), also known as photoacoustic tomography, have the ability to improve image quality over analytic algorithms due to their ability to incorporate accurate models of the imaging ...
Alexander A Oraevsky +9 more
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Photocatalytic Micro/Nanomotors Functioning in the Near‐Infrared Window for Biomedical Applications
Advanced Science, Volume 13, Issue 16, 18 March 2026.This review focuses on near‐infrared responsive photocatalytic micro/nanomotors based on inorganic materials, with particular emphasis on minimally invasive biomedical applications. It discusses material strategies for achieving near‐infrared responsiveness, including heterostructure construction, upconversion nanoparticle integration, defect ...
Yufen Chen +2 more
wiley +1 more source