Results 111 to 120 of about 62,109 (322)

Photoacoustic-based thermal image formation and optimization using an evolutionary genetic algorithm

open access: yes, 2018
Introduction For improved efficiency and security in heat application during hyperthermia, it is important to monitor tissue temperature during treatments.
Diego Ronaldo Thomaz Sampaio (5312924)   +3 more
core   +2 more sources

Photoacoustic-guided focused ultrasound (PAFUSion) for identifying reflection artifacts in photoacoustic imaging

open access: yesPhotoacoustics, 2015
Influence of acoustic inhomogeneities and resulting reflection artifacts is an important problem in reflection-mode photoacoustic imaging. Absorption of light by skin and superficial optical absorbers will generate photoacoustic transients, which ...
Mithun Kuniyil Ajith Singh   +1 more
doaj   +1 more source

_In vivo_ photoacoustic molecular imaging with simultaneous multiple selective targeting using antibody-conjugated gold nanorods

open access: yes, 2008
The use of gold nanorods for photoacoustic molecular imaging in vivo with simultaneous multiple selective targeting is reported. The extravasation of multiple molecular probes is demonstrated, and used to probe molecular information of cancer cells. This
Ya-Na Wu   +8 more
core  

3D PHOTOACOUSTIC TOMOGRAPHY IN AN ENDOSCOPIC FORM FACTOR

open access: yes, 2020
We present the results of a study to introduce photoacoustic tomography capability into a 2D endoscopic 64-element phased and 3D endoscopic 128-element crossed electrode ultrasound array for the use in endoscopic brain surgery. Our approach was to fix
Landry, Taylor
core  

Photothermal detection of trace compounds in water, using the deflection of a water meniscus [PDF]

open access: yes, 1998
Anovelphotothermaldetectorisdescribed,basedonaclosedcellsuitableforusewithlow-frequencymodulatedcontinuous-wavelightsources.Photothermalexpansioninaqueoussamplescausedthedeflectionofawatermeniscusheldacrossa200m-radiuspinhole ...
Johnson, Mark   +2 more
core   +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  

Full-visibility 3D imaging of oxygenation and blood flow by simultaneous multispectral photoacoustic fluctuation imaging (MS-PAFI) and ultrasound Doppler

open access: yes, 2023
International audienceWe present a method and setup that provide complementary three-dimensional (3D) images of blood oxygenation (via quantitative photoacoustic imaging) and blood flow dynamics (via ultrasound Doppler).
Arnal, Bastien   +2 more
core   +1 more source

Inhibition of Lipid Peroxidation Induced by Ultraviolet Radiation by Crude Phlorotannis Isolated from Brown Algae Sargassum hystrix v. buxifolium C. Agardh

open access: yesIndonesian Journal of Chemistry, 2013
This study examines the antioxidant activity of crude phlorotannins from the brown algae Sargassum hystrix v. buxifolium (Chauvin) J. Agardh, through the inhibition of a lipid peroxidation reaction that is induced by the UV radiation.
Agnes Nora Iska Harnita   +5 more
doaj   +1 more source

Recent Advances in Stimulated Brillouin Scattering in Integrated Photonics

open access: yesAdvanced Physics Research, EarlyView.
This review systematically surveys recent advances in stimulated Brillouin scattering (SBS) within integrated photonics. It begins by elucidating the fundamental mechanisms of stimulated coupling between photons and acoustic phonons in nanoscale waveguides, enhanced by the photoelastic and moving boundary effects.
Songyue Liu   +8 more
wiley   +1 more source

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