Results 261 to 270 of about 92,210 (293)

Simultaneous photoacoustic and ultrasound imaging: A review.

Ultrasonics
Photoacoustic imaging (PAI) is an emerging biomedical imaging technique that combines the advantages of optical and ultrasound imaging, enabling the generation of images with both optical resolution and acoustic penetration depth.
Yinshi Yu, Ting Feng, H. Qiu, Ying Gu, Qian Chen, Chao Zuo, Haigang Ma   +6 more
semanticscholar   +1 more source

Synthesis of Liquid Gallium@Reduced Graphene Oxide Core-Shell Nanoparticles with Enhanced Photoacoustic and Photothermal Performance.

Journal of the American Chemical Society, 2022
This report presents nanoparticles composed of a liquid gallium core with a reduced graphene oxide (RGO) shell (Ga@RGO) of tunable thickness. The particles are produced by a simple, one-pot nanoprobe sonication method.
Yingyue Zhang, Zhenzhen Guo, Hanrui Zhu, Wenkui Xing, P. Tao, W. Shang, B. Fu, Chengyi Song, Yuan Hong, M. Dickey, T. Deng   +10 more
semanticscholar   +1 more source

Photoacoustic Point Source

Physical Review Letters, 2001
Physical Review ...
I G, Calasso, W, Craig, G J, Diebold
openaire   +2 more sources

Ultrahigh Sensitive Trace Gas Sensing System with Dual Fiber-Optic Cantilever Multiplexing-Based Differential Photoacoustic Detection.

Analytical Chemistry
An ultrahigh sensitive trace gas sensing system was presented with dual cantilever-based differential photoacoustic detection. By combining the double enhancement of multipass absorption and optical differential detection, the gas detection sensitivity ...
Xinyu Zhao, Zhengzhi Wang, Chenxi Li, Heng Wang, Hongchao Qi, Min Guo, Fengxiang Ma, Ke Chen   +7 more
semanticscholar   +1 more source

Dense Multibutterfly Spots-Enhanced Miniaturized Optical Fiber Photoacoustic Gas Sensor.

Analytical Chemistry
A miniaturized optical fiber photoacoustic gas sensor enhanced by dense multibutterfly spots is reported for the first time. The principle of space light transmission of neglecting paraxial approximation is theoretically analyzed for designing a dense ...
Xinyu Zhao, Hongchao Qi, Heng Wang, Xiaona Wang, Ming-Ming Guo, Wei Peng, Ke Chen   +6 more
semanticscholar   +1 more source

Listening to Drug Delivery and Responses via Photoacoustic Imaging.

Advanced Drug Delivery Reviews, 2022
Administrating pharmaceutic agents efficiently to achieve the therapeutic effect is the aim of all drug delivery techniques. Recent drug delivery systems aim to deliver high doses of drugs to disease sites accurately while maximizing therapeutic effects ...
Byullee Park, Sinyoung Park, Jeesu Kim, Chulhong Kim   +3 more
semanticscholar   +1 more source

Photoacoustic imaging endoscope

2009 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2009
We currently present a design concept for a photoacoustic imaging endoscope as well as some preliminary experimental results. The device is based on the generation of acoustic waves in tissue by short laser pulses and the sensing of these waves with a thin, optical Fabry-Pérot etalon.
C, Sheaff, N, Lau, H, Patel, S W, Huang, S, Ashkenazi   +4 more
openaire   +2 more sources

Photoacoustic Imaging: Contrast Agents and Their Biomedical Applications

Advances in Materials, 2018
Photoacoustic (PA) imaging as a fast‐developing imaging technique has great potential in biomedical and clinical applications. It is a noninvasive imaging modality that depends on the light‐absorption coefficient of the imaged tissue and the injected PA ...
Qinrui Fu, Rong Zhu, Jibin Song, Huanghao Yang, Xiaoyuan Chen   +4 more
semanticscholar   +1 more source

The emerging role of photoacoustic imaging in clinical oncology

Nature Reviews Clinical Oncology, 2022
Li Lin, Lihong V. Wang
semanticscholar   +1 more source

Photoacoustic Spectroscopy — Photoacoustic and Photothermal Effects

1990
Definition. Photoacoustic (PA) or optoacoustic measurements in the original, strict sense comprise the detection of acoustic waves which arise from non-radiative de-excitation (radiationless transition) of the sample as a consequence of absorption of continuously amplitude-modulated light.
C. Buschmann, H. Prehn
openaire   +1 more source