Results 241 to 250 of about 132,248 (302)

Ultrasound‐Responsive Engineered Bacteria for Targeted Cancer Therapy: Strategies, Mechanisms, and Applications

Advanced Science, EarlyView.
This review elucidates URB design strategies, including genetic and physicochemical modifications, while dissecting the synergistic mechanisms governing spatiotemporal control. It further evaluates applications in targeted drug delivery, gene modulation, and immunotherapy, finally offering perspectives on overcoming translational barriers for clinical ...
Xueyao Wang, Wenjing Xu, Yafang Lu, Huaibin Yu, Zhengbao Zha, Xijun Zhang   +5 more
wiley   +1 more source

Bioinspired Engineering of Streamlined Skeletal Interoception: Neural Bioprinted Piezoelectric Scaffolds for Neuro‐Vascularized Bone Regeneration

Advanced Science, EarlyView.
This study develops neural bioprinted piezoelectric scaffolds which construct local “sensor‐effector” circuit, inspired by the skeletal interoception system. Upon US stimulation sensing and mechanoelectrical coupling by PLLA nanofibers, the incorporated DRG neurons effect through Ca2+ influx‐induced enhanced secretion and expression of CGRP.
Yingze Su, Haomin Wang, Weixi Liu, Kangming Chen, Yiyang Min, Jinbo Zhu, Xueyang Li, Anning Su, Hao Yang, Lei Yang, Yun Ji, Yuxin Zhang, Jisi Zheng, Chi Yang, Chuanglong He, Tao Li, Shuo Chen, Tao Wu, Xiaodong Chen   +18 more
wiley   +1 more source

All‐in‐One Underwater Quality Evaluation Metamaterial With Mechanical Robustness, Sound Attenuation, and Diffuse Reflection

Advanced Science, EarlyView.
In this work, a bioinspired all‐in‐one underwater quality evaluation metamaterial, combining sound attenuation, diffuse reflection, and mechanical robustness, is proposed based on jumping spider locomotion and human skeletal biomechanics. Meanwhile, a CNN‑driven quality evaluation framework is established for theoretically dimension‐reduced ...
Hongze Li, Zhenyu Li, Jinshui Yang, Jianhao Wu, Yidan Chen, Linzhi Wu, Hong Hu, Penglin Gao, Yegao Qu   +8 more
wiley   +1 more source

Aggregation‐Induced Resonance Energy Transfer in Polymer Dots to Boost Electrochemiluminescence Performance for Bioimaging of Glycan on Cells

Advanced Science, EarlyView.
This study pioneers an aggregation‐induced resonance energy transfer mechanism by synergistically integrating aggregation‐induced emission (AIE), resonance energy transfer (RET), and thermally activated delayed fluorescence (TADF) within co‐reactant conjugated polymers to develop self‐enhanced ECL emitters, which achieves an ECL efficiency up to 92.6 ...
Chao Wang, Mengjiao Li, Yiran Li, Xiangfu Hu, Chunlan Li, Ningning Wang, Huangxian Ju   +6 more
wiley   +1 more source

Ultrahigh‐Linear Bio‐Inspired Janus Elastomeric Strain Sensor with High Sensitivity and Stretchability via Surface Wrinkle Engineering

Advanced Science, EarlyView.
A bio‐inspired Micro‐wrinkled Janus elastomeric flexible strain sensor mimicking wrinkled‐leaf viburnum is developed. Endowed with a synergistic sensing mechanism including wrinkle‐guided microcracks, modulus‐gradient‐driven strain division, and a parallel conductive circuit, it achieves ultra‐high linearity, sensitivity, wide strain range, and ...
Jing Lin, Ye Li, Simi Yu, Xing Cheng, Longxin Qian, Yufei Chen, Womin Li, Zhipeng Yang, Yinlei Lin, Dechao Hu, Jianyi Luo, Lan Liu   +11 more
wiley   +1 more source

Medical ultrasound transducers and beamforming

, 1995
openaire   +1 more source

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Ultrasound transducers

European Journal of Radiology, 1998
Sonography is facing a new technological revolution. Recent advances in ultrasound technology are increasing spatial, contrast and vascular resolution. Transducers play an important role in achieving these improvements; their technology is widely reviewed in this paper. Physics and technology relate to image quality and its clinical potentials.
openaire   +2 more sources

Ultrasound transducer array

The Journal of the Acoustical Society of America, 2006
This invention relates to an ultrasonic transducer array for non-destructive imaging and inspection of materials, suitable for applications such as bio-medical imaging. According to the invention, the transducer has at least one electrode comprising an array of electrode elements, wherein the elements are not separated by a grooves or kerfs.
Geoffrey R. Lockwood, Christine E. Morton   +1 more
openaire   +1 more source

Bone ultrasound transducer

The Journal of the Acoustical Society of America, 2012
Low-intensity pulsed ultrasound (LIPUS) is used on bone-healing. One expected healing mechanism of this technique is the contribution of piezoelectricity. Actually, the piezoelectricity in dry bone at low frequencies has been reported by many investigators.
Masahiro Okino, Katsunori Mizuno, Daisuke Suga, Mami Matsukawa   +3 more
openaire   +1 more source

Integrated ultrasound transducers

Proceedings of IEEE Ultrasonics Symposium ULTSYM-94, 1994
Piezoelectric polymer materials are of interest for high frequency transducer array applications primarily because the array geometry can be achieved using photolithography. The UMIST research team have fabricated up to 64-element polymer transducer arrays.
null Payne, null Hatfield, null Armitage, null Chen, null Hicks, null Scales   +5 more
openaire   +1 more source