Results 41 to 50 of about 8,958 (245)

Photoacoustic signal enhancement in dual-contrast gastrin-releasing peptide receptor-targeted nanobubbles

open access: yesFrontiers in Bioengineering and Biotechnology, 2023
Translatable imaging agents are a crucial element of successful molecular imaging. Photoacoustic molecular imaging relies on optical absorbing materials to generate a sufficient signal.
Shensheng Zhao   +11 more
doaj   +1 more source

Calcium Sensor for Photoacoustic Imaging

open access: yesJournal of the American Chemical Society, 2017
We introduce a selective and cell-permeable calcium sensor for photoacoustics (CaSPA), a versatile imaging technique that allows for fast volumetric mapping of photoabsorbing molecules with deep tissue penetration. To optimize for Ca2+-dependent photoacoustic signal changes, we synthesized a selective metallochromic sensor with high extinction ...
Sheryl Roberts   +17 more
openaire   +6 more sources

Gold Nanoparticles for Photoacoustic Imaging [PDF]

open access: yesNanomedicine, 2015
Photoacoustic (PA) imaging is a biomedical imaging modality that provides functional information regarding the cellular and molecular signatures of tissue by using endogenous and exogenous contrast agents. There has been tremendous effort devoted to the development of PA imaging agents, and gold nanoparticles as exogenous contrast agents have great ...
Xiaoyuan Chen, Wanwan Li
openaire   +3 more sources

Organosilicon phantom for photoacoustic imaging

open access: yesJournal of Biomedical Optics, 2015
Photoacoustic imaging is an emerging technique. Although commercially available photoacoustic imaging systems currently exist, the technology is still in its infancy. Therefore, the design of stable phantoms is essential to achieve semiquantitative evaluation of the performance of a photoacoustic system and can help optimize the properties of contrast ...
Francesco Faita   +12 more
openaire   +6 more sources

Eavesdrop at Clinical Depths: Deep Photoacoustic Imaging with Internal Light Illumination

open access: yesAdvanced Devices & Instrumentation
Photoacoustic imaging (PAI) is a hybrid image modality that combines optical absorption contrast and acoustic detection of light-induced ultrasound waves.
Joseph J. Yang, Soon-Woo Cho, Junjie Yao
doaj   +1 more source

Photoacoustic imaging platforms for multimodal imaging

open access: yesUltrasonography, 2015
Photoacoustic (PA) imaging is a hybrid biomedical imaging method that exploits both acoustical Epub ahead of print and optical properties and can provide both functional and structural information. Therefore, PA imaging can complement other imaging methods, such as ultrasound imaging, fluorescence imaging, optical coherence tomography, and multi-photon
Jeesu Kim   +3 more
openaire   +5 more sources

Simultaneous Dual-Modal Multispectral Photoacoustic and Ultrasound Macroscopy for Three-Dimensional Whole-Body Imaging of Small Animals

open access: yesPhotonics, 2021
Photoacoustic imaging is a promising medical imaging technique that provides excellent function imaging of an underlying biological tissue or organ. However, it is limited in providing structural information compared to other imaging modalities, such as ...
Eun-Yeong Park   +5 more
doaj   +1 more source

Photoacoustic Imaging of Epilepsy [PDF]

open access: yes, 2010
Abstract : This research is aimed at developing a new imaging approach, called Photoacoustic tomography (PAT) , for non-invasively tracking dynamical changes during seizure occurrence. The project will develop imaging hardware and software, and conduct phantom/in vivo experiments to achieve the proposed goals.
openaire   +2 more sources

Thermal intravascular photoacoustic imaging

open access: yesBiomedical Optics Express, 2011
Intravascular photoacoustics (IVPA)-a minimally invasive imaging technique with contrast related to optical absorption properties of tissue, can be used to visualize atherosclerotic plaques. However, the amplitude of photoacoustic signals is also related to a temperature dependent, tissue specific parameter-the Grüneisen parameter.
Bo Wang, Stanislav Emelianov
openaire   +3 more sources

Metal Nanoclusters for Cancer Imaging and Treatment

open access: yesAdvanced Functional Materials, EarlyView.
This review aims to provide a comprehensive summary and discussion of the core–shell design capabilities of metal nanoclusters (NCs) at the atomic level for cancer imaging and treatment. It offers essential insights into the design principles of metal NCs while also encouraging the exploration of other nanomaterials and their potential theranostic ...
Haiguang Zhu   +5 more
wiley   +1 more source

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