Results 61 to 70 of about 989,563 (206)

A Method for Delineation of Bone Surfaces in Photoacoustic Computed Tomography of the Finger [PDF]

Ultrasonic Imaging, 2015
Photoacoustic (PA) imaging of interphalangeal peripheral joints is of interest in the context of using the synovial membrane as a surrogate marker of rheumatoid arthritis. Previous work has shown that ultrasound (US) produced by absorption of light at the epidermis reflects on the bone surfaces within the finger.
Biswas, SK, van Es, P, Steenbergen, W, Manohar, S   +3 more
openaire   +5 more sources

Mitochondria‐Targeted Nanotherapies in Aging Neurodegenerative Disorders: Emerging Prospects and Clinical Potential

Advanced Healthcare Materials, EarlyView.
Mitochondria‐targeted nanotherapies emerge as a promising strategy for combating aging‐associated neurodegenerative disorders (NDs) by restoring mitochondrial function, reducing oxidative stress, and improving neuronal survival. Recent advances in nanotechnology, therapeutic delivery, and translational research are highlighted, providing insights into ...
Dnyandev G. Gadhave, Ashish B. Jadhav, Nitin B. Waghamode, Shubham Khot, Rajiya Khan, Ravi Hole, Shankar M. Dhobale, Manoj Aswar, Keshav Raj Paudel   +8 more
wiley   +1 more source

Flexible fiber-laser ultrasound sensor for multiscale photoacoustic imaging

Opto-Electronic Advances, 2021
Photoacoustic imaging (PAI) is a noninvasive biomedical imaging technology capable of multiscale imaging of biological samples from organs down to cells.
Bai-Ou Guan, Long Jin, Jun Ma, Yizhi Liang, Xue Bai   +4 more
doaj   +1 more source

Computed Tomography‐ and Photoacoustic Imaging‐Active Bioresorbable Electrospun Bismuth Nanoparticle‐Infused Small‐Diameter Vascular Grafts

Advanced Healthcare Materials, EarlyView.
A polymeric graft loaded with radiopaque bismuth nanoparticles is expected to undergo gradual polymer resorption and nanoparticle release. This design enables noninvasive, multimodal monitoring of device integrity, patency, and degradation using computed tomography alongside ultrasound and photoacoustic imaging over 12 weeks.
Allan John R. Barcena, Joy Vanessa D. Perez, Marvin R. Bernardino, Dominic Karl M. Bolinas, Kitz Paul D. Marco, Kim Claudette J. Fernandez, Archana Mishra, Erin Marie D. San Valentin, Jossana A. Damasco, Gino Martin Canlas, Natalie Fowlkes, Richard R. Bouchard, Steven Y. Huang, Marites P. Melancon   +13 more
wiley   +1 more source

Phase Engineering of Nanomaterials (PEN): Evolution, Current Challenges, and Future Opportunities

Advanced Materials, EarlyView.
This review summarizes the synthesis, phase transition, advanced characterization spanning ex situ to in situ and operando techniques, and diverse applications of phase engineering of nanomaterials (PEN). It further outlines key challenges and future opportunities, such as phase stability, architecture control, and artificial intelligence (AI)‐driven ...
Ye Chen, Zhanxi Fan, Jingjie Ge, Qiyuan He, Zhuangchai Lai, Jiawei Liu, Chaoliang Tan, Hua Zhang   +7 more
wiley   +1 more source

Membrane‐Bound Multimodal Plasmonic Transducers for Noninvasive, In Situ Monitoring and Control of CAR T Cells Against Heterogeneous Solid Tumors

Advanced Materials, EarlyView.
Membrane‐bound multimodal transducers enable longitudinal ultrasound‐guided photoacoustic monitoring and in situ thermal control of CAR T cells in heterogeneous solid tumors. Imaging correlates T cell trafficking with tumor response, distinguishing responders from nonresponders.
Myeongsoo Kim, Ali Zamat, Melissa Cadena, Chloé Thiveaud, Riya Sen, Jeungyoon Lee, Elif Kulaksizoglu, S. Abbey Oliver, Don VanderLaan, Sydney Fábrega, Zizhen Zha, Kelsey P. Kubelick, Jinhwan Kim, Gabriel A. Kwong, Stanislav Y. Emelianov   +14 more
wiley   +1 more source

Transcranial photoacoustic computed tomography based on a layered back-projection method

Photoacoustics, 2020
A major challenge of transcranial human brain photoacoustic computed tomography (PACT) is correcting for the acoustic aberration induced by the skull. Here, we present a modified universal back-projection (UBP) method, termed layered UBP (L-UBP), that ...
Shuai Na, Xiaoyun Yuan, Li Lin, Julio Isla, David Garrett, Lihong V. Wang   +5 more
doaj   +1 more source

Artificial Intelligence Meets Micro/Nanorobotics

Advanced Materials, EarlyView.
Artificial intelligence is transforming micro‐ and nanorobots from externally controlled, task‐specific machines into adaptive, autonomous systems. Machine learning, multimodal perception, digital twins, AI‐guided materials and geometry design enhance propulsion, localization, decision‐making, whichaccelerates clinical and environmental applications ...
Fatma M. Yurtsever, Minitha Cherukutty Ramakrishnan, Ian Kuula Ross, Ivan Zelinka, Hamed Shahsavan, Michal Otyepka, Martin Pumera   +6 more
wiley   +1 more source

Transcranial photoacoustic computed tomography of human brain function

, 2022
Herein we report the first in-human transcranial imaging of brain function using photoacoustic computed tomography. Functional responses to benchmark motor tasks were imaged on both the skull-less and the skull-intact hemispheres of a hemicraniectomy ...
Zhang, Yang, Russin, Jonathan J., Hu, Peng, Liu, Charles Y., Sastry, Karteekeya, Tong, Xin, Jann, Kay B., Na, Shuai, Lin, Li, Wang, Danny J., Wang, Lihong V.   +10 more
core  

Photoacoustic tomography [PDF]

, 2008
The field of photoacoustic tomography has experienced considerable growth in the past few years. Although several commercially available pure optical imaging modalities, including confocal microscopy, two-photon microscopy, and optical coherence ...
Beare, Gene K., Lihong V. Wang, Gene K. Beare, Wang, Lihong V.   +3 more
core   +1 more source