Results 91 to 100 of about 61,907 (317)

On-chip photoacoustic transducer based on monolithic integration of piezoelectric micromachined ultrasonic transducers and metasurface lenses

, 2023
An on-chip photoacoustic transducer is proposed by monolithically integrating piezoelectric micromachined ultrasonic transducers (PMUTs) on metasurface lenses for applications such as single-cell metabolic photoacoustic microscopy (SCM-PAM)1 .
Li, Xiaohang, Zhai, Yanfen, Lin, Ronghui, Sasaki, Takashi, Moridi, Mohssen, Shamim, Atif, Hane, Kazuhiro, Alnakhli, Zahrah, Younis, Mohammad I., Wu, Lixiang   +9 more
core   +1 more source

Photoacoustic Gas Sensing Using a Novel Fluidic Microphone Based on Thermal MEMS

Sensors
Photoacoustic spectroscopy (PAS) is a powerful technique for selective gas detection; however, its performance in non-resonant configurations is fundamentally constrained by the poor low-frequency response of conventional acoustic detectors.
Akash Gupta, Anant Bhardwaj, Achim Bittner, Alfons Dehé   +3 more
doaj   +1 more source

Hamilton-Green solver for the forward and adjoint problems in photoacoustic tomography [PDF]

, 2021
Francesc Rul⋅lan, Marta M. Betcke
openalex   +1 more source

Spontaneous Non‐Catalyzed Molecular Reactions and Interactions in the Human Body: Biomedical Implications

Advanced Science, EarlyView.
ABSTRACT The human body functions as a natural reactor for a vast network of chemical and biological reactions and physical interactions among small molecules, proteins, cells, and numerous other components. These reactions/interactions are essential for maintaining normal physiological functions.
Yuhao Cai, Chao Zhao
wiley   +1 more source

Photoacoustic flow cytometry [PDF]

Methods, 2012
Conventional flow cytometry using scattering and fluorescent detection methods has been a fundamental tool of biological discoveries for many years. Invasive extraction of cells from a living organism, however, may lead to changes in cell properties and prevents the long-term study of cells in their native environment.
Ekaterina I, Galanzha, Vladimir P, Zharov   +1 more
openaire   +2 more sources

2‐Azaazulenium Hemicyanine Dyes for NIR‐II Multimodal Imaging and Combined Phototherapy

Angewandte Chemie, EarlyView.
A strategically engineered class of 2‐azaazulenium hemicyanines is developed, featuring bright fluorescence in the second near‐infrared (NIR‐II) window and multifunctional performance. SWJT‐OCH3 shows type I/II reactive oxygen species (ROS) generation and excellent photothermal activity.
Min Peng, Bing‐Ya Wang, Hai Xu, Qiang Wang, Rong‐Dan Xiao, Rui Tan, Yu Peng, Ya‐Wen Wang, Juyoung Yoon   +8 more
wiley   +2 more sources

Isotope-Selective Gas Sensing Using Photoacoustic Non-Dispersive Spectroscopy

Proceedings
The flow of carbons into the citric acid cycle can be readily traced by supplementation with 13C stable isotope labelled nutrients. However, the quantification of the amount of fully oxidised nutrients to carbon dioxide is a challenging task.
Gabriel Rodriguez Gutierrez, Loay Marouani, Alvaro Ortiz Perez, Peter Kreuzaler, Stefan Palzer   +4 more
doaj   +1 more source

Engineering Microbial Particles for Next‐Generation Biomedical Platforms

Advanced Science, EarlyView.
Microbe‐derived particles (MDPs), which include extracellular vesicles, outer membrane vesicles, inclusion bodies, polysaccharide particles, and virus‐like particles, represent a rapidly expanding category of bioinspired nanomaterials. With their natural origin, intrinsic biocompatibility, and highly programmable functionality, MDPs serve as a ...
Yuting Li, Yunjie Lu, Ziyan Huang, Jianjiang Chen, Yanbin Liu, Lei Qin, Chao Wang, Yumin Wu   +7 more
wiley   +1 more source

Intravascular Photoacoustic Imaging [PDF]

IEEE Journal of Selected Topics in Quantum Electronics, 2010
Intravascular photoacoustic (IVPA) imaging is a catheter-based, minimally invasive, imaging modality capable of providing high-resolution optical absorption map of the arterial wall. Integrated with intravascular ultrasound (IVUS) imaging, combined IVPA and IVUS imaging can be used to detect and characterize atherosclerotic plaques building up in the ...
Bo, Wang, Jimmy L, Su, Andrei B, Karpiouk, Konstantin V, Sokolov, Richard W, Smalling, Stanislav Y, Emelianov   +5 more
openaire   +2 more sources

Ingenious Dual Pulse Photoacoustic Tomography in Drug-Responsive Clinical Imaging Perspectives

, 2023
Detection of the real-time growth rate of cancer and visualization of the effectiveness of chemotherapy using live cell imaging techniques are yet to be invented. However, these could be conducive to monitoring the cancer treatment more precisely. In the
Arijit, Bag, Diyasha, Sen
core   +1 more source