Results 61 to 70 of about 2,751 (173)

Raster-scan optoacoustic angiography of blood vessel development in colon cancer models

Photoacoustics, 2019
Raster-scan optoacoustic angiography at 532 nm wavelength with 50 μm lateral resolution at 2 mm diagnostic depth was used for quantitative characterization of neoangiogenesis in colon cancer models.
Anna Orlova, Marina Sirotkina, Ekaterina Smolina, Vadim Elagin, Andrey Kovalchuk, Ilya Turchin, Pavel Subochev   +6 more
doaj   +1 more source

Photonic Integrated Circuit Platform on 3 μm Thick Silicon‐on‐Insulator and Its Application Examples

Nanophotonics, Volume 15, Issue 17, 11 September 2026.
This paper gives an overview of the 3 μm SOI PIC platform and explains its unique characteristics, such as ultra‐high mode confinement, low losses, dense integration, polarization‐independent operation, small phase errors, and ultra‐broadband operation.
Timo Aalto, Dura Shahwar, Markku Kapulainen, Mikko Harjanne, Katherine Bryant, Somnath Paul, Päivi Heimala, Fei Sun, Jae‐Wung Lee, Ari Hokkanen   +9 more
wiley   +1 more source

Ultrafast Optoacoustics Reveals Intricate 3D Anisotropic Elasticity in Nanocrystalline Membranes

Advanced Science, Volume 13, Issue 54, 28 September 2026.
Ultrafast optoacoustic spectroscopy combined with a Sagnac interferometer enables non‐contact, simultaneous characterization of thickness and the full three‐dimensional anisotropic elastic constants in freestanding nanocrystalline copper membranes. By capturing gigahertz Lamb waves and zero‐group‐velocity resonances followed by SAFE‐GA inversion, the ...
Shuchang Zhang, Yi He, Guojie Luo, Jie Huang, Pak San Yip, Haoyu Cui, Wanglinhan Zhang, Zijian Wang, Lin Ye, Yang Lu, Zhongqing Su, Yehai Li   +11 more
wiley   +1 more source

CEBPG‐Mediated Palmitic Acid Adaptation of Cancer‐Associated Fibroblasts Drives Metastasis of Oral Squamous Cell Carcinoma

Advanced Science, Volume 13, Issue 47, 24 August 2026.
This study reveals a metabolic signaling axis in the OSCC microenvironment where palmitic acid (PA) drives the activation of CAFs. PA uptake triggers CEBPG‐dependent epigenetic remodeling to upregulate ERN1 and TMBIM6, thereby mitigating ER stress. This adaptive program sustains CAF survival and the pro‐metastatic phenotype, establishing this pathway ...
Yiling Duan, Yitong Li, Yufei Wu, Xiao Yang, Rui Li, Hui Zhao, Zhengjun Shang   +6 more
wiley   +1 more source

Nonlinearity of optoacoustic signals and a new contrast mechanism for imaging

Light: Science & Applications
Optoacoustic signals behave nonlinearly at light fluences above a few mJ/cm2, which may affect the interpretation and quantification of measurements.
Jaber Malekzadeh-Najafabadi, Jaya Prakash, Daniel Razansky, Jorge Ripoll, Vipul Gujrati, Vasilis Ntziachristos   +5 more
doaj   +1 more source

Applying dynamic contrast enhanced MSOT imaging to intratumoral pharmacokinetic modeling

Photoacoustics, 2018
Examining the dynamics of an agent in the tumor microenvironment can offer critical insights to the influx rate and accumulation of the agent. Intratumoral kinetic characterization in the in vivo setting can further elicudate distribution patterns and ...
Ted G. Xiao, Jared A. Weis, F. Scott Gayzik, Alexandra Thomas, Akiko Chiba, Metin N. Gurcan, Umit Topaloglu, Abhilash Samykutty, Lacey R. McNally   +8 more
doaj   +1 more source

Optoacoustic Monitoring of Physiologic Variables

Frontiers in Physiology, 2017
Optoacoustic (photoacoustic) technique is a novel diagnostic platform that can be used for noninvasive measurements of physiologic variables, functional imaging, and hemodynamic monitoring.
Rinat O. Esenaliev
doaj   +1 more source

Optoacoustic muscle imaging

Journal of Neuromuscular Diseases
Background: Optoacoustic imaging (OAI) has emerged as a powerful modality for visualizing biological tissues with high spatial resolution and molecular specificity. When applied to skeletal muscle tissue, OAI provides unique opportunities to investigate muscle composition, function, and physiology beyond the ...
Lina Tan, Stefanie Meyer, Jana Zschüntzsch, Ulrich Rother, Ferdinand Knieling   +4 more
openaire   +2 more sources

Echographic detectability of optoacoustic signals from low-concentration PEG-coated gold nanorods

International Journal of Nanomedicine, 2012
Francesco Conversano,1 Giulia Soloperto,1 Antonio Greco,1 Andrea Ragusa,1,2 Ernesto Casciaro,1 Fernanda Chiriacò,1 Christian Demitri,3 Giuseppe Gigli,2–5 Alfonso Maffezzoli,3 Sergio Casciaro11National Research Council, Institute of ...
Conversano F, Soloperto G, Greco A, Ragusa A, Casciaro E, Chiriacò F, Demitri C, Gigli G, Maffezzoli A, Casciaro S   +9 more
doaj  

On the link between the speckle free nature of optoacoustics and visibility of structures in limited-view tomography

Photoacoustics, 2016
Similar to pulse-echo ultrasound, optoacoustic imaging encodes the location of optical absorbers by the time-of-flight of ultrasound waves. Yet, signal generation mechanisms are fundamentally different for the two modalities, leading to significant ...
Xosé Luís Deán-Ben, Daniel Razansky
doaj   +1 more source