Results 91 to 100 of about 6,232,025 (300)

Intelligent Soft Opto‐Magnetic Robot for Minimally Invasive Interventional Therapy

Advanced Science, EarlyView.
An intelligent soft opto‐magnetic (iSOM) robot is developed that integrates remote magnetic actuation, skin‐mimic tactile perception, and photothermal ablation in a near‐millimeter‐scale design. It enables precise intraluminal navigation and localized ablation while providing real‐time optical feedback to support safe and accurate minimally invasive ...
Jingjing Guo, Xiaoyan Guo, Jian Wei, Miaowen Jiang, Qifa Su, Xian Xia, Zhuozhou Li, Rong Cai, Jianguo Ma, Bo Fu, Ming Li, Jing Zhong, Lijun Xu, Xunming Ji   +13 more
wiley   +1 more source

In vivo photoacoustic tomography of porcine abdominal organs using Fabry–Pérot sensing integrated platform

European Radiology Experimental
Objective To evaluate in vivo a fully integrated photoacoustic tomography imaging system based on Fabry–Pérot ultrasound sensing method applied on porcine abdominal organs. This approach could be used by surgeons during intraoperative clinical procedures.
Damien Gasteau, Alexis Vrignaud, Arnaud Biallais, Fabrice Richard, Gilles Blancho, Julien Branchereau, Benoît Mesnard   +6 more
doaj   +1 more source

Photoacoustic Imaging using Combination of Eigenspace-Based Minimum Variance and Delay-Multiply-and-Sum Beamformers: Simulation Study

, 2017
Delay and Sum (DAS), as the most common beamforming algorithm in Photoacoustic Imaging (PAI), having a simple implementation, results in a low-quality image.
Avanji, Seyed Amin Ollah Izadi, Mahloojifar, Ali, Mozaffarzadeh, Moein, Orooji, Mahdi   +3 more
core   +1 more source

STING Agonist‐Modified Tumor Targeting Photosensitizer Remodels Cancer‐Associated Fibroblasts to Potentiate Photoimmunotherapy in Pancreatic Cancer

Advanced Science, EarlyView.
This carrier‐free, esterase‐responsive nanoaggregate integrates a mitochondria‐targeting photosensitizer with a non‐nucleotide STING agonist to achieve localized photoactivation and immune reprogramming. ICyM2 remodels tumor stroma, induces potent immunogenic cell death, and triggers intratumoral STING activation, collectively revitalizing the ...
Yixuan Zhang, Shankun Yao, Yihan Zhao, Saisai Zhu, Wen Fang, Ranran Yu, Naiwen Shi, Ruixin Zhang, Yin Zhang, Jiawei Liang, Ziying Zhang, Shijin Xu, Ziwei Zhang, Jiajun Zhang, Yukun Li, Xiaoxuan Han, Yuncong Chen, Shu Zhang, Ying Lv   +18 more
wiley   +1 more source

Maltotriose-based probes for fluorescence and photoacoustic imaging of bacterial infections

Nature Communications, 2020
Currently, there are no non-invasive tools to accurately diagnose wound and surgical site infections before they become systemic or cause significant anatomical damage. Fluorescence and photoacoustic imaging are cost-effective imaging modalities that can
A. Zlitni, G. Gowrishankar, I. Steinberg, Tom Haywood, S. Sam Gambhir   +4 more
semanticscholar   +1 more source

Real‐Time and High‐Resolution NIR‐II‐L Imaging of Netrin‐1‐Mediated Neurovascular Coupling Driven by Dose‐Dependent Electroacupuncture

Advanced Science, EarlyView.
Disrupted neurovascular coupling contributes to ovarian dysfunction in polycystic ovary syndrome. Using near‑infrared II long‑wavelength imaging, this study visualizes how electroacupuncture dynamically regulates ovarian blood vessels in vivo. Immediate and cumulative stimulation elicit distinct vascular responses via a Netrin‐1 dependent mechanism ...
Yicong Wang, Zi‐Han Chen, Jiajia Li, Wei Hu, Ying Cao, Yu Wang, Xiaoyu Tong, Wenhan Lu, Yuze Yang, Yuehao Wang, Yan Xiao, Wenhao Gao, Yuning Chen, Yuyan Hou, Fan Zhang, Yi Feng   +15 more
wiley   +1 more source

Seamlessly Overcoming Biological Barriers with a Small Photosensitizer to Treat Metastatic Tumors with Photodynamic Therapy

Angewandte Chemie, EarlyView.
LUZ 51 is a relatively small and amphiphilic photosensitizer that accumulates in poorly‐vascularized tumors, is rapidly internalized by cancer cells, does not elicit skin photosensitivity and triggers robust immunological responses that reduce spontaneous metastasis.
Mafalda Penetra, Bárbara Lima, João P. A. Campos, Sara M. A. Pinto, Fábio A. Schaberle, Mariette M. Pereira, Luis G. Arnaut, Lígia C. Gomes‐da‐Silva   +7 more
wiley   +2 more sources

Sharp-peaked lanthanide nanocrystals for near-infrared photoacoustic multiplexed differential imaging

Communications Materials
Photoacoustic tomography offers a powerful tool to visualize biologically relevant molecules and understand processes within living systems at high resolution in deep tissue, facilitated by the conversion of incident photons into low-scattering acoustic ...
Kang Yong Loh, Lei S. Li, Jingyue Fan, Yi Yiing Goh, Weng Heng Liew, Samuel Davis, Yide Zhang, Kai Li, Jie Liu, Liangliang Liang, Minjun Feng, Ming Yang, Hang Zhang, Ping’an Ma, Guangxue Feng, Zhao Mu, Weibo Gao, Tze Chien Sum, Bin Liu, Jun Lin, Kui Yao, Lihong V. Wang, Xiaogang Liu   +22 more
doaj   +1 more source

Dual-modal photoacoustic and ultrasound imaging: from preclinical to clinical applications

Frontiers in Photonics
Photoacoustic imaging is a novel biomedical imaging modality that has emerged over the recent decades. Due to the conversion of optical energy into the acoustic wave, photoacoustic imaging offers high-resolution imaging in depth beyond the optical ...
Nikhila Nyayapathi, Emily Zheng, Qifa Zhou, Marvin Doyley, Jun Xia   +4 more
doaj   +1 more source

Signal and Image Processing in Biomedical Photoacoustic Imaging: A Review

Optics, 2020
Photoacoustic imaging (PAI) is a powerful imaging modality that relies on the PA effect. PAI works on the principle of electromagnetic energy absorption by the exogenous contrast agents and/or endogenous molecules present in the biological tissue ...
Rayyan Manwar, M. Zafar, Qiuyun Xu
semanticscholar   +1 more source