Results 161 to 170 of about 32,854 (304)

AlScN Film Based Piezoelectric Micromechanical Ultrasonic Transducer for an Extended Long-Range Detection. [PDF]

Micromachines (Basel), 2022
Yang H, Ji M, Xiu X, Lv H, Gu A, Zhang S.   +5 more
europepmc   +1 more source

ROS‐Responsive Nanobubbles for Dual‐Enhanced Ultrasound and Magnetic Resonance Imaging of Tumor Oxidative Stress

Advanced Science, EarlyView.
We report the development of biotinylated PEGylated bilirubin‐coated perfluoropentane (bt‐PEG‐BR@PFP) nanobubbles, a novel class of ROS‐activatable and dual‐modality contrast agents that amplify both ultrasound (US) and magnetic resonance imaging (MRI) signals in response to elevated ROS.
Wonsik Jung, Youngju Son, Dong Yun Lee, Youngeun Jeon, Muhammad Asaddudin, Sung‐Hong Park, Sangyong Jon   +6 more
wiley   +1 more source

Advances in Crosstalk Reduction Techniques for Ultrasonic Transducer Arrays. [PDF]

Sensors (Basel)
Boujenoui A, El Atlas N, Bybi A, Reskal H, Elmaimouni L.   +4 more
europepmc   +1 more source

Photoacoustic imaging of visually evoked cortical and subcortical hemodynamic activity in mouse brain: feasibility study with piezoelectric and capacitive micromachined ultrasonic transducer (CMUT) arrays. [PDF]

Biomed Opt Express, 2023
Chang KW, Belekov E, Wang X, Wong KY, Oralkan Ö, Xu G.   +5 more
europepmc   +1 more source

Mechanozyme: An Artificial Enzyme With a Mechanophore Framework

Advanced Science, EarlyView.
Mechanical destabilization of a G‐quadruplex mechanophore in a DNAzyme markedly boosts its catalytic activity, demonstrating “mechanozymes” as artificial enzymes whose functions are modulated by mechanical stress exerted by ultrasonication. This mechanozyme principle is broadly applicable to control biomolecular activities.
Jiahao Ji, Pravin Pokhrel, Sajan Shakya, Bishal Pokhrel, Grinsun Sharma, Pratiksha Chaudhary, Hao Shen, Hanbin Mao   +7 more
wiley   +1 more source

Integrated system for ultrasonic, elasticity and photoacoustic imaging

, 2008
textBy integrating three complementary imaging techniques - ultrasound, elasticity and photoacoustic imaging, a hybrid imaging system utilizing an array transducer is proposed for various biomedical imaging applications including cancer detection ...
Park, Suhyun, 1977-
core  

Design of a Novel Electromagnetic Ultrasonic Transducer for Stress Detection. [PDF]

Sensors (Basel)
Chen C, Xu C, Yang G, Ma Y, Yang S.
europepmc   +1 more source

Fabrication and DC-Bias Manipulation Frequency Characteristics of AlN-Based Piezoelectric Micromachined Ultrasonic Transducer. [PDF]

Micromachines (Basel), 2023
Li T, Zhang L, Geng W, He J, Rao Y, Huo J, Yan K, Chou X.   +7 more
europepmc   +1 more source

Noninvasive Focal Gene Delivery into the Cerebellum of Non‐Human Primates using Focused Ultrasound

Advanced Science, EarlyView.
Focal and non‐invasive viral vector delivery in non‐human primates remains a major challenge in translational neuroscience. Low‐intensity focused ultrasound was used to transiently open the blood–brain barrier and enable targeted gene delivery to the cerebellum.
Noelia Esteban‐García, José A. Pineda‐Pardo, Inés Trigo‐Damas, Marta Gutiérrez, Marta Castillo‐Ortiz, Megan Carrillo, Alejandro Reinares‐Sebastian, Víctor Medina‐Chavarrías, Itay Rachmilevitch, Masahiko Takada, José A. Obeso, Javier Blesa   +11 more
wiley   +1 more source

Auto-positioning ultrasonic transducer system

, 2010
An ultrasonic transducer apparatus and process for determining the optimal transducer position for flow measurement along a conduit outer surface. The apparatus includes a transmitting transducer for transmitting an ultrasonic signal, said transducer ...
Buchanan, Randy K.
core