Results 71 to 80 of about 61,907 (317)

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

Photoacoustic tomography system based on Diode Laser to Imaging of some types of materials

, 2022
Photoacoustic tomography imaging research has been conducted to distinguish several types of materials. The photoacoustic tomography imaging system used in this study uses a diode laser as a source of radiation and a condenser microphone as a detection ...
Satriawan, Mirza, Mitrayana, Mitrayana, Cahyani, Dara Cynthia Nur   +2 more
core   +1 more source

Machine-Learning-Based Real-Time Photoacoustic Surface Crack Detection

Engineering Proceedings, 2023
Photoacoustic imaging is commonly utilized in biomedical research due to its capability to provide the functional and structural details of imaging targets, featuring optical contrast and ultrasound resolution.
Abdulrhman Alshaya, Ghadah Alabduljabbar, Asem Alalwan   +2 more
doaj   +1 more source

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

Nanoparticles for photoacoustic imaging [PDF]

WIREs Nanomedicine and Nanobiotechnology, 2009
AbstractNanoparticles have been designed and applied as contrast enhancers in various optical imaging techniques, such as optical coherence tomography, fluorescence imaging, and optical reflectance microscopy. As an emerging hybrid imaging modality, photoacoustic imaging (PAI) has also benefited from the application of these nanoparticle‐based contrast
Yang, Xinmai, Stein, Erich W., Ashkenazi, S., Wang, Lihong V.   +3 more
openaire   +3 more sources

Optical gas sensing: a review [PDF]

, 2013
The detection and measurement of gas concentrations using the characteristic optical absorption of the gas species is important for both understanding and monitoring a variety of phenomena from industrial processes to environmental change.
Hodgkinson, Jane, Tatam, Ralph P.
core   +1 more source

Mid-Infrared Fiber-Coupled Photoacoustic Sensor for Biomedical Applications

Sensors, 2013
Biomedical devices employed in therapy, diagnostics and for self-monitoring often require a high degree of flexibility and compactness. Many near infrared (NIR) optical fiber-coupled systems meet these requirements and are employed on a daily basis ...
Jonas Kottmann, Markus W. Sigrist, Julien M. Rey, Urs Grob   +3 more
doaj   +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

Fine Tuning of the Photoacoustic Generation Efficiency by Aggregation-Caused Quenching and Excitation Energy Transfer in Bodipy-Labeled Polylactide Nanoparticles

, 2023
The relationship between the fluorescence decrease by Aggregation-Caused Quenching (ACQ) and the Photoacoustic Generation Efficiency in polylactide-Bodipy nanoparticles (PLA-Bodipy NPs) is demonstrated. PLA NPs with different PLA-Bodipy loading (from 2.5%
Minh-Huong , HA-THI, Anam, FATIMA, Clément, LINGER, Nicolas, TSAPIS, Jean-Baptiste, BODIN, Rachel, MÉALLET, Jérôme, GATEAU, David, CHAPRON, Théo, BEGUIN, Théotim, LUCAS, Laurence, MOINE, Gilles, CLAVIER   +11 more
core   +1 more source

Absolute evaluation of internal and external quantum efficiencies and light extraction efficiency in InGaN single quantum wells by simultaneous photoacoustic and photoluminescence measurements combined with integrating-sphere method

Science and Technology of Advanced Materials: Methods
Separated evaluation of factors in the external quantum efficiency (EQE) is important in order to improve the characteristics of semiconductors optical devices.
Keito Mori-Tamamura, Yuchi Takahashi, Shigeta Sakai, Yuya Morimoto, Junji Hirama, Atsushi A. Yamaguchi, Susumu Kusanagi, Yuya Kanitani, Yoshihiro Kudo, Shigetaka Tomiya   +9 more
doaj   +1 more source