Results 51 to 60 of about 3,766 (264)

A multi-aperture encoding scheme for increased SNR in photoacoustic Imaging

open access: yesPhotoacoustics
Photoacoustic imaging creates light-induced ultrasonic signals to provide valuable information on internal body structures and tissue morphology non-invasively.
Amir Gholampour   +5 more
doaj   +1 more source

Optoacoustic Imaging in Inflammation

open access: yesBiomedicines, 2021
Optoacoustic or photoacoustic imaging (OAI/PAI) is a technology which enables non-invasive visualization of laser-illuminated tissue by the detection of acoustic signals. The combination of “light in” and “sound out” offers unprecedented scalability with
Adrian P. Regensburger   +4 more
doaj   +1 more source

On an inverse problem in photoacoustics

open access: yesJournal of Inverse and Ill-posed Problems, 2019
Abstract We consider the problem of reconstruction of the Cauchy data for the wave equation in ℝ 3 ...
Mikhail I. Belishev   +3 more
openaire   +3 more sources

Double‐Transition‐Metal MXenes: Multimetallic 2D Platforms for Next‐Generation Biomedicine

open access: yesAdvanced Materials, EarlyView.
The present work explores recent progress in double‐transition‐metal MXenes and focuses on their potential as multifunctional biomedical nanoplatforms whose tunable optical, electronic, mechanical, and surface properties enable imaging, theranostics, antimicrobial activity, biosensing, tissue engineering, and drug delivery.
Parsa Namakiaraghi   +2 more
wiley   +1 more source

Noise-equivalent sensitivity of photoacoustics [PDF]

open access: yes, 2013
The fundamental limitations of photoacoustic microscopy for detecting optically absorbing molecules are investigated both theoretically and experimentally.
Winkler, Amy M.   +2 more
core  

Adipocyte Size Evaluation Based on Photoacoustic Spectral Analysis Combined with Deep Learning Method

open access: yesApplied Sciences, 2018
Adipocyte size, i.e., the cell area of adipose tissue, is correlated directly with metabolic disease risk in obese humans. This study proposes an approach of processing the photoacoustic (PA) signal power spectrum using a deep learning method to evaluate
Xiang Ma   +10 more
doaj   +1 more source

Shape Optimization of an Open Photoacoustic Resonator

open access: yesApplied Sciences, 2021
Photoacoustic (PA) measurements with open resonators usually provide poor detection sensitivity due to signal leakage at the resonator opening. We have recently demonstrated three different approaches for modelling the photoacoustic signal of open ...
Said El-Busaidy   +3 more
doaj   +1 more source

Biomedical photoacoustic imaging [PDF]

open access: yesInterface Focus, 2011
Abstract Photoacoustic (PA) imaging, also called optoacoustic imaging, is a new biomedical imaging modality based on the use of laser-generated ultrasound that has emerged over the last decade. It is a hybrid modality, combining the high-contrast and spectroscopic-based specificity of optical imaging with the high spatial resolution ...
openaire   +2 more sources

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

open access: yesAdvanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu   +8 more
wiley   +1 more source

Development of a prototype photoacoustic microscope and spectroscope and advanced semiconductor material characterization [PDF]

open access: yes, 2012
The thesis can be divided into two parts. In the first part of my thesis, I present the design, construction and test results of a prototype gas-cell Photoacoustic (PA) Spectrometer and Microscope. It is a low cost, non-contact technique, which can
Xu, Lu, Xu, L.
core  

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