Results 21 to 30 of about 11,598 (201)

Photoacoustic Neuroimaging - Perspectives on a Maturing Imaging Technique and its Applications in Neuroscience

open access: yesFrontiers in Neuroscience, 2021
A prominent goal of neuroscience is to improve our understanding of how brain structure and activity interact to produce perception, emotion, behavior, and cognition.
Silviu-Vasile Bodea   +3 more
doaj   +1 more source

Photoacoustic and fluorescence lifetime imaging of diatoms

open access: yesPhotoacoustics, 2020
Photoacoustic and fluorescent methods are used intensely in biology and medicine. These approaches can also be used to investigate unicellular diatom algae that are extremely important for Earth’s ecology.
Julijana Cvjetinovic   +8 more
doaj   +1 more source

Clinical photoacoustic imaging of cancer [PDF]

open access: yesUltrasonography, 2016
Photoacoustic imaging is a hybrid technique that shines laser light on tissue and measures optically induced ultrasound signal. There is growing interest in the clinical community over this new technique and its possible clinical applications. One of the
Keerthi S. Valluru, Juergen K. Willmann
doaj   +1 more source

Recent Advances in QEPAS and QEPTS Based Trace Gas Sensing: A Review

open access: yesFrontiers in Physics, 2020
This invited review paper summarizes and discusses developments of QTF based state-of-the-art quartz-enhanced photoacoustic spectroscopy (QEPAS) and quartz-enhanced photothermal spectroscopy (QEPTS) gas sensing techniques over the past 3 years.
Yufei Ma
doaj   +1 more source

Optical Light Sources and Wavelengths within the Visible and Near-Infrared Range Using Photoacoustic Effects for Biomedical Applications

open access: yesBiosensors, 2022
The photoacoustic (PA) effect occurs when sound waves are generated by light according to the thermodynamic and optical properties of the materials; they are absorption spectroscopic techniques that can be applied to characterize materials that absorb ...
Unsang Jung, Jaemyung Ryu, Hojong Choi
doaj   +1 more source

Synthetic aperture focusing technique for photoacoustic endoscopy

open access: yesOptics Express, 2017
Photoacoustic endoscopy (PAE) is a promising tool for the detection of atherosclerotic plaque. In this work, we propose a novel design of a side-viewing PAE probe based on a synthetic aperture focusing technique (SAFT) to enable high transverse resolution over large depth of focus (DOF) along the radial direction.
De, Cai   +5 more
openaire   +2 more sources

Review of Photoacoustic Malaria Diagnostic Techniques

open access: yesOpen Journal of Clinical Diagnostics, 2021
Malaria is one of the leading causes of mortality and morbidity in developing countries. Accurate and complete diagnosis is key for effective treatment of the disease. However, mainstream malaria diagnostic techniques suffer from a number of shortcomings. There is therefore an urgent need for development of new and more efficient techniques for malaria
Daniel Maitethia Memeu   +3 more
openaire   +2 more sources

Photoacoustic technique for diagnosis of blood clotting

open access: yesInternational journal of health sciences, 2022
The photoacoustic technique is considered a scientific renewal in the world of diagnosing blood diseases. The motivation of this study is to get the bio-information about RBCs aggregation by analyzing of the photoacoustic signals represented with microscopic images which linking with artificial intelligence technology.
Saman Hameed Majeed   +2 more
openaire   +1 more source

Single laser pulse generates dual photoacoustic signals for differential contrast photoacoustic imaging

open access: yesScientific Reports, 2017
Photoacoustic sensing and imaging techniques have been studied widely to explore optical absorption contrast based on nanosecond laser illumination. In this paper, we report a long laser pulse induced dual photoacoustic (LDPA) nonlinear effect, which ...
Fei Gao   +6 more
doaj   +1 more source

Ultrasound-Guided Breath-Compensation in Single-Element Photoacoustic Imaging for Three-Dimensional Whole-Body Images of Mice

open access: yesFrontiers in Physics, 2022
Photoacoustic imaging can be used to extract functional information at the molecular level for imaging the whole body of small animals in vivo. However, the use of a mechanical scanner to image the whole body involves acquiring the data for a period of ...
Haeni Lee   +6 more
doaj   +1 more source

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