Results 71 to 80 of about 1,180,081 (224)

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

Photoacoustic microscopy of bilirubin in tissue phantoms [PDF]

Journal of Biomedical Optics, 2012
Determining both bilirubin's concentration and its spatial distribution are important in disease diagnosis. Here, for the first time, we applied quantitative multiwavelength photoacoustic microscopy (PAM) to detect bilirubin concentration and distribution simultaneously. By measuring tissue-mimicking phantoms with different bilirubin concentrations, we
Zhou, Yong, Zhang, Chi, Yao, Da-Kang, Wang, Lihong V.   +3 more
openaire   +4 more sources

An Analysis Scheme for Investigation of Effects of Various Parameters on Signals in Acoustic-Resolution Photoacoustic Microscopy of Mice Brain: a Simulation Study

Frontiers in Biomedical Technologies, 2017
Purpose:Photoacoustic spectral analysis is a novel tool for studying various parameters affecting signals in Photoacoustic microscopy. But only observing frequency components of photoacoustic signals doesn’t make enough data for a desirable analysis ...
Hossein Ghadiri, Mohammad Reza Fouladi, Arman Rahmim   +2 more
doaj  

Photoacoustic microscopy with meta-optics

Communications Physics
Recent advances in the miniaturization of optical elements have led to the emergence of imaging systems used for industrial and consumer-based applications.
Dorian S. H. Brandmüller, David Grafinger, Robert Nuster, Andreas Hohenau, Marcus Ossiander, Peter Banzer   +5 more
doaj   +1 more source

Quickly Alternating Green and Red Laser Source for Real-time Multispectral Photoacoustic Microscopy

Photoacoustics, 2020
Multispectral photoacoustic microscopy uses a wavelength-dependent absorption difference as a contrast mechanism to image the target molecule. In this paper, we present a novel multispectral pulsed fiber laser source, which selectively alternates the ...
Sang Min Park, Do Yeon Kim, Soon-Woo Cho, Beop-Min Kim, Tae Geol Lee, Chang-Seok Kim, Sang-Won Lee   +6 more
doaj   +1 more source

Unlocking Long‐Lived Charge‐Separated State in Pentamethine Cyanine Based on Anionic Hofmeister Effect for Photodynamic Immunotherapy

Advanced Science, EarlyView.
Based on the anionic Hofmeister effect, a universal strategy of incorporation of stereo‐π anion BPh4− into a series of Cy5 skeletons to unlock long‐lived charge‐separated states was reported, wherein the weak electronic coupling and low charge recombination driving force hinder the charge recombination process, elevating the oxygen‐independent ROS ...
Xuan Zhao, Lei Jiang, Yingyong Ni, Ting Wang, Junjun Wang, Shengyu Shi, Jianhua Yu, Zhou Lu, Xiaojiao Zhu, Hongping Zhou   +9 more
wiley   +1 more source

In vivo characterization and analysis of glioblastoma at different stages using multiscale photoacoustic molecular imaging

Photoacoustics, 2023
Simultaneous spatio-temporal description of tumor microvasculature, blood-brain barrier, and immune activity is pivotal to understanding the evolution mechanisms of highly aggressive glioblastoma, one of the most common primary brain tumors in adults ...
Jinde Zhang, Xiang Sun, Honghui Li, Haosong Ma, Fei Duan, Zhiyou Wu, Bowen Zhu, Ronghe Chen, Liming Nie   +8 more
doaj   +1 more source

Spatiotemporally Controlled Sequential Chemo‐Immunotherapy Activates Pyroptosis for Robust Anti‐Tumor Immunotherapy

Advanced Science, EarlyView.
A glutathione and ultrasound dual‐responsive cerasome achieves sequential co‐delivery of gemcitabine and BMS1166 in tumors. Chemotherapy priming followed by on‐demand PD‐L1 blockade synergistically amplifies anti‐tumor immunity, inhibiting primary tumor growth, distant metastasis and inducing durable immune memory.
Suhui Sun, Ruiqi Wu, Qingshuang Tang, Yunli Xu, Wanrui Shi, Mengxin Wang, Haonan Wang, Yan Luo, Cheng Ma, Xiaolong Liang   +9 more
wiley   +1 more source

Vascular bifurcation mapping with photoacoustic microscopy

Biomedical Optics Express, 2020
The early detection of microvascular changes in cancer diagnosis is needed in the clinic. A change in the vascular bifurcation density is a biomarker for the sprouting activity. Here, Optical-Resolution PhotoAcoustic Microscopy is used for quantitative vascular bifurcation mapping in 2D after the creation of Virtual Tubes out of Bifurcations. In stacks
van Der Sanden, Boudewijn, Hugon, Olivier, Inglebert, Mehdi, Jacquin, Olivier, Lacot, Eric   +4 more
openaire   +4 more sources

Photoacoustic Microscopy [PDF]

, 1981
Recent advances in scanning photoacoustic microscopy (SPAM) for NDE are described. Conventional and phase-contrast modes are used to detect a well-characterized subsurface flaw in Al, and the results are shown to be in good agreement with calculations ...
Pouch, J, Favro, L, Thomas, R, Kuo, P, Inglehart, L., Thomas, R., Inglehart, L, Kuo, P., Favro, L., Pouch, J.   +9 more
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