Results 141 to 150 of about 51,778 (325)

The scale matters: A review on stimuli‐responsive microrobots categorized by scale for biomedical applications

open access: yesResponsive Materials, EarlyView.
We systematically summarize how each scale dictates fundamental choices in design feature, manufacturing technology, driving mechanism, and control strategy, which are inherently governed by scale‐dominated physical principles. Furthermore, the application of scale‐determined operation modes of microrobots across different stages of medical ...
Hang Yin   +3 more
wiley   +1 more source

Microbubbles coupled to methotrexate-loaded liposomes for ultrasound-mediated delivery of methotrexate across the blood–brain barrier

open access: yesInternational Journal of Nanomedicine, 2014
Xiang Wang,1 Ping Liu,1 Weixiao Yang,1 Lu Li,1 Peijing Li,2 Zheng Liu,1 Zhongxiong Zhuo,1 Yunhua Gao1 1Department of Ultrasound, Xinqiao Hospital of the Third Military Medical University, Chongqing, 2Department of Ultrasound, General Hospital of ...
Wang X   +7 more
doaj  

Shaping Function: Polymeric 3D Systems With Unconventional Geometries for Biomedical Applications

open access: yesSmall, EarlyView.
Particle shape is a key design parameter governing biological interactions. Advances in fabrication enable precise control over anisotropy and compartmentalization, allowing modulation of cellular uptake, transport, and biodistribution, ultimately enhancing therapeutic performance. ABSTRACT Polymer geometry is a primary determinant of physical behavior
Francisca G. Perfeito   +2 more
wiley   +1 more source

Activatable smart contrast agents for photoacoustic imaging

open access: yesSmart Molecules, EarlyView.
This review highlights recent advances in smart activatable photoacoustic imaging (PAI) contrast agents, which dynamically modulate their optical properties in response to external stimuli or microenvironmental cues. It discusses their molecular design, activation mechanisms, biomedical applications, and future prospects for clinically tailored use ...
Donghyeon Oh   +5 more
wiley   +1 more source

Effect of ultrasonic burst microbubbles on microwave coagulation hemostasis in a pig model of hepatic hemorrhage

open access: yesScientific Reports
To investigate the hemostatic efficacy of ultrasound in flash mode and/or microbubbles-assisted microwave coagulation for active liver hemorrhage. Thirty miniature pigs were randomly divided into five groups.
Bibo Peng   +9 more
doaj   +1 more source

Investigating Dynamic Characteristics of Cavitation in Insulating Oil Microgaps Under Vibration: Theoretical Analysis and Experimental Observation

open access: yesHigh Voltage, EarlyView.
ABSTRACT The internal pressure fluctuations caused by vibration in oil‐immersed electrical equipment can initiate bubbles within narrow oil gaps, reducing the electrical strength of equipment and giving rise to the problem of abnormal gas production in oil‐immersed equipment.
Jiajun Yang, Tao Zhao, Yunpeng Liu
wiley   +1 more source

Development of an inhalable contrast agent targeting the respiratory tract mucus layer for pulmonary ultrasonic imaging

open access: yesScientific Reports
Impaired mucociliary transport is a distinguishing sign of cystic fibrosis, but current methods of evaluation are invasive or expose young patients to ionizing radiation. Contrast-enhanced ultrasound imaging may provide a feasible alternative.
James K. Tsuruta   +9 more
doaj   +1 more source

An Ultrasound-Guided Hemispherical Phased Array for Microbubble-Mediated Ultrasound Therapy

open access: green, 2021
Lulu Deng   +4 more
openalex   +2 more sources

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