Results 81 to 90 of about 29,238 (342)

Modular Electronic Microrobots With Onboard Sensor‐Program‐Steered Locomotion

Advanced Intelligent Systems, EarlyView.
Modular electronic smartlet microrobots integrate ambient‐light energy harvesting, photodetection, programmable CMOS control, and bubble‐based actuation within a sub‐millimeter fold‐up architecture. A 58‐bit on‐board CMOS chiplet enables sensor–program steered switching between independently addressable actuators, achieving closed‐loop 2D navigation in
Vineeth K. Bandari, Yeji Lee, Pranathi Adluri, Daniil Karnaushenko, Dmitriy D. Karnaushenko, John S. McCaskill, Oliver G. Schmidt   +6 more
wiley   +1 more source

Synthesis of Laboratory Ultrasound Contrast Agents

Molecules, 2013
Ultrasound Contrast Agents (UCAs) were developed to maximize reflection contrast so that organs can be seen clearly in ultrasound imaging. UCAs increase the signal to noise ratio (SNR) by linear and non-linear mechanisms and thus help more accurately ...
Jaemin Oh, Kiju Choi, Jongbum Seo, Bongkwang Jung, Hyunjin Park, Sanghyub Moon, Han Sung Kim, Chihyun Kim, Unchul Shin, Donghee Park, Jingam Park   +10 more
doaj   +1 more source

Investigation of non-chemical CO2 microbubbles conformance control and EOR in low-permeability reservoirs [PDF]

, 2023
Haowei Haowei, Haowei Jia, Haiyang Yu, Feifan Xie, Jinbo Liu, Zhou Yuan, Haifeng Yang, Yang Wang, Zhenhua Rui   +8 more
openalex   +1 more source

Modeling of microbubble dissolution in aqueous medium

, 2015
A mathematical model for microbubble dissolution in an aqueous medium containing dissolved gases is presented. None of the models available in the literature take into account the influence of shell elasticity (Es), variation in surface tension (σ) at ...
Dalvi, Sameer V., Joshi, Jignesh R.
core   +1 more source

Segmented Therapeutic Delivery via Acoustic Microbubble Relay

Advanced Intelligent Systems, EarlyView.
An acoustically driven, modular segmented delivery system is presented to overcome mechanical limitations of conventional microcatheters. Oscillating microbubbles generate directional streaming that enables continuous, targeted transport across open, angled segments.
Lei Wang, Yiyang Tang, Yiqiang Wu, Xin Zhang, Tianshi Lyu, Zhen Hua, Tian‐Yun Huang   +6 more
wiley   +1 more source

Enhanced microbubble contrast agent oscillation following 250 kHz insonation

Scientific Reports, 2018
Microbubble contrast agents are widely used in ultrasound imaging and therapy, typically with transmission center frequencies in the MHz range. Currently, an ultrasound center frequency near 250 kHz is proposed for clinical trials in which ultrasound ...
Tali Ilovitsh, Asaf Ilovitsh, Josquin Foiret, Charles F. Caskey, Jiro Kusunose, Brett Z. Fite, Hua Zhang, Lisa M. Mahakian, Sarah Tam, Kim Butts-Pauly, Shengping Qin, Katherine W. Ferrara   +11 more
doaj   +1 more source

Generation of Microbubbles through Single Loop and Double Loop Fluid Oscillator for Photobioreactor Aeration

International Journal of Technology, 2019
Microbubbles are known for their many applications. Recently there has been new findings regarding the growth of susceptible microalgae through microbubble aeration.
Muhammad Ilham Rizaldi, Arif Rahman, Deendarlianto, Nining Betawati Prihantini, Nasruddin   +4 more
doaj   +1 more source

Therapeutic Applications of Stimuli‐Based Release and Engineering of Extracellular Vesicles

Advanced NanoBiomed Research, EarlyView.
This review summarizes the effects of endogenous and exogenous stimuli, their effects on the natural release of extracellular vesicles, as well as their uptake and release. It also gives an overview of stimuli‐responsive EVs and their therapeutic applications. Extracellular vesicles (EVs), nano‐ to microsized lipid bilayer membrane‐bound particles, are
Gloria Kemunto, Kristen Dellinger
wiley   +1 more source

Ultrasound frequency-controlled microbubble dynamics in brain vessels regulate the enrichment of inflammatory pathways in the blood-brain barrier

Nature Communications
Microbubble-enhanced ultrasound provides a noninvasive physical method to locally overcome major obstacles to the accumulation of blood-borne therapeutics in the brain, posed by the blood-brain barrier (BBB).
Yutong Guo, Hohyun Lee, Chulyong Kim, Christian Park, Akane Yamamichi, Pavlina Chuntova, Marco Gallus, Miguel O. Bernabeu, Hideho Okada, Hanjoong Jo, Costas Arvanitis   +10 more
doaj   +1 more source

Ultrastructural Changes Associated With the Enhanced Permeability of the Round Window Membrane Mediated by Ultrasound Microbubbles

Frontiers in Pharmacology, 2020
The round window membrane (RWM) is the most common entryway for local drug and gene delivery into the inner ear, but its permeability can change the treatment outcome.
Yi-Chun Lin, Hsin-Chien Chen, Hang-Kang Chen, Yuan-Yung Lin, Yuan-Yung Lin, Chao-Yin Kuo, Hao Wang, Chia-Lien Hung, Cheng-Ping Shih, Chih-Hung Wang, Chih-Hung Wang, Chih-Hung Wang   +11 more
doaj   +1 more source