Results 21 to 30 of about 3,766 (264)

Neurovascular photoacoustic tomography [PDF]

open access: yesFrontiers in Neuroenergetics, 2010
Neurovascular coupling refers to the relationship between neuronal activities and downstream hemodynamic responses. Photoacoustic tomography (PAT), enabling comprehensive label-free imaging of hemodynamic activities with highly scalable penetration and spatial resolution, has great potential in the study of neurovascular coupling.
Hu, Song, Wang, Lihong V.
openaire   +3 more sources

Analytic Optimization of Cantilevers for Photoacoustic Gas Sensor with Capacitive Transduction

open access: yesSensors, 2021
We propose a new concept of photoacoustic gas sensing based on capacitive transduction which allows full integration while conserving the required characteristics of the sensor.
Wioletta Trzpil   +5 more
doaj   +1 more source

Non-Invasive Evaluation of Acute Effects of Tubulin Binding Agents: A Review of Imaging Vascular Disruption in Tumors

open access: yesMolecules, 2021
Tumor vasculature proliferates rapidly, generally lacks pericyte coverage, and is uniquely fragile making it an attractive therapeutic target. A subset of small-molecule tubulin binding agents cause disaggregation of the endothelial cytoskeleton leading ...
Li Liu   +7 more
doaj   +1 more source

Quantitative analysis of a closed photoacoustic cell that uses a high compliance piezoelectric transducer [PDF]

open access: yes, 2005
A treatment of the operation of low-frequency closed photoacoustic cells is presented, which considers the compliance of various cell elements. The optimum detector, according to our predictions, has a sensor whose compliance is large compared to that
Johnson, Mark   +5 more
core   +1 more source

Waveform engineering analysis of photoacoustic radar chirp parameters for spatial resolution and SNR optimization

open access: yesPhotoacoustics, 2019
Recent developments in photoacoustics have witnessed the implementation of a radar matched-filtering methodology into the continuous wave photoacoustic modality. The main merit of using matched filtering in continuous photoacoustics is the improvement in
Zuwen Sun   +2 more
doaj   +1 more source

Photoacoustic-Based Gas Sensing: A Review

open access: yesSensors, 2020
The use of the photoacoustic effect to gauge the concentration of gases is an attractive alternative in the realm of optical detection methods. Even though the effect has been applied for gas sensing for almost a century, its potential for ultra ...
Stefan Palzer
doaj   +1 more source

Performance of a photothermal detector with turbid liquids [PDF]

open access: yes, 2005
A closed-cell photothermal detector for aqueous analytes has been evaluated at 254nm and 678nm. The detector used a water meniscus as a pressure sensor, whose periodic deflection was measured using a low finesse optical fibre Fabry-Perot interferometer.
Johnson, Mark   +2 more
core   +1 more source

Tutorial on photoacoustic tomography [PDF]

open access: yesJournal of Biomedical Optics, 2016
Photoacoustic tomography (PAT) has become one of the fastest growing fields in biomedical optics. Unlike pure optical imaging, such as confocal microscopy and two-photon microscopy, PAT employs acoustic detection to image optical absorption contrast with high-resolution deep into scattering tissue.
Zhou, Yong, Yao, Junjie, Wang, Lihong V.
openaire   +3 more sources

Select Internet Resources on Acoustics

open access: yesIssues in Science and Technology Librarianship, 2016
The article lists online resources related to acoustics including websites, databases, and journals "Advances in Acoustics and Vibration", "EURASIP Journal on Audio, Speech, and Music Processing", and "Photoacoustics".    
Angela R. Davis
doaj   +1 more source

Nanosecond SRS fiber amplifier for label-free near-infrared photoacoustic microscopy of lipids

open access: yesPhotoacoustics, 2022
Near-infrared photoacoustics receives increasing interest as an intravital modality to sense key biomolecules. One of the most central types of biomolecules of interest are lipids as they constitute essential bio-hallmarks of cardiovascular and metabolic
Hwidon Lee   +5 more
doaj   +1 more source

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