Results 51 to 60 of about 26,357 (239)

Nanotherapies for Atherosclerosis: Targeting, Catalysis, and Energy Transduction

Advanced Healthcare Materials, EarlyView.
Atherosclerosis management is hindered by poor drug targeting and plaque heterogeneity. Nanotechnology overcomes these barriers via three core strategies: (1) target‐engineered nanocarriers that achieve lesion‐specific precision via ligand modification, biomimetic camouflage, stimuli‐responsive release, and self‐propelling nanomotors; (2) catalytic ...
Yuqi Yang, Jingguo Qu, Tonghuan Xiao, Xinyang Han, Michael Tin‐Cheung Ying   +4 more
wiley   +1 more source

Real-time delay-multiply-and-sum beamforming with coherence factor for in vivo clinical photoacoustic imaging of humans [PDF]

, 2019
In the clinical photoacoustic (PA) imaging, ultrasound (US) array transducers are typically used to provide B-mode images in real-time. To form a B-mode image, delay-and-sum (DAS) beamforming algorithm is the most commonly used algorithm because of its ...
Choi, Wonseok, Jeon, Seungwan, KIM, CHULHONG, Lee, Ki Jong, Managuli, Ravi, Park, Eun-Yeong   +5 more
core   +1 more source

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

Advanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu, Mengyao Xiao, Zhouli Sui, Yinpeng Wang, Daoye Zheng, Yuxin Liu, Luwei Wang, Huajun Liu, Chengkuo Lee   +8 more
wiley   +1 more source

Advances in high‐resolution photoacoustic imaging techniques for cellular visualization

View
Photoacoustic imaging is an advanced biomedical imaging technique that combines optical excitation and ultrasound detection to provide molecular functional information of biological tissues in vivo.
Hyunjun Kye, Moon Sung Kang, Dongyoung Jo, Byullee Park, Hee Jeong Jang, Jeesu Kim, Dong‐Wook Han   +6 more
doaj   +1 more source

Resolution Enhancement Strategies in Photoacoustic Microscopy: A Comprehensive Review

Micromachines
Photoacoustic imaging has emerged as a promising modality for medical imaging since its introduction. Photoacoustic microscopy (PAM), which is based on the photoacoustic effect, combines the advantages of both optical and acoustic imaging modalities. PAM
Jinying Zhang, Yifan Shi, Yexiaotong Zhang, Haoran Liu, Shihao Li, Linglu Liu   +5 more
doaj   +1 more source

An experimental and theoretical approach to the study of the photoacoustic signal produced by cancer cells

AIP Advances, 2012
The distinctive spectral absorption characteristics of cancer cells make photoacoustic techniques useful for detection in vitro and in vivo. Here we report on our evaluation of the photoacoustic signal produced by a series of monolayers of different cell
Rafael Pérez Solano, Francisco I. Ramirez-Perez, Jorge A. Castorena-Gonzalez, Edgar Alvarado Anell, Gerardo Gutiérrez-Juárez, Luis Polo-Parada   +5 more
doaj   +1 more source

Dual-pulse nonlinear photoacoustic technique: a practical investigation

Biomedical Optics Express, 2015
The dual-pulse nonlinear photoacoustic technique is a recently developed technology based on temperature dependence of the Grüneisen parameter and involves consecutive excitations of biological tissue using two laser pulses with a short time delay.
Chao, Tian, Zhixing, Xie, Mario L, Fabiilli, Shengchun, Liu, Cheng, Wang, Qian, Cheng, Xueding, Wang   +6 more
openaire   +2 more sources

Multimodal Actuation and Environment Adaptive Strategies of Bio‐Inspired Micro/Nanorobots in Precision Medicine

Advanced Robotics Research, EarlyView.
An introduction for multidrive and environment‐adaptive micro/nanorobotics: design and fabrication strategies, intelligent actuation, and their applications. Various intelligent actuation approaches—magnetic, acoustic, optical, chemical, and biological—can be synergistically designed to enhance flexibility and adaptive behavior for precision medicine ...
Aiqing Ma, Han Gong, Jiacheng Ouyang, Liqi Chen, Tianfang Kang, Yiran He, Guojun Huang, Sidi Zheng, Ting Yin, Hong Pan, Lintao Cai   +10 more
wiley   +1 more source

Cross‐Scale Hierarchical Targeted Delivery System Based on Small‐Scale Magnetic Robots

Advanced Robotics Research, EarlyView.
This article reviews a cross‐scale hierarchical targeted delivery system that integrates magnetic continuum robots and magnetic microrobots. By combining rapid long‐range navigation with precise microscale targeting, the system overcomes key limitations of single‐scale approaches.
Junjian Zhou, Zhiqiang Chen, Yuanbiao Ma, Zhiqiang Tang, Qianqian Wang   +4 more
wiley   +1 more source

Photoacoustic technique for diagnosis of blood clotting

International journal of health sciences, 2022
The photoacoustic technique is considered a scientific renewal in the world of diagnosing blood diseases. The motivation of this study is to get the bio-information about RBCs aggregation by analyzing of the photoacoustic signals represented with microscopic images which linking with artificial intelligence technology.
Saman Hameed Majeed, Jamal A. Hasan, Eman Ghadhban Khalil   +2 more
openaire   +1 more source