Results 61 to 70 of about 8,814 (193)

Deep Learning Network‐Tailored Microenvironment Matching of 4D Bioprinting Bioactive Scaffolds for Bone Regeneration

Advanced Science, EarlyView.
A DLN dataset was built to analyze MABS composition versus in vitro/in vivo osteogenesis and angiogenesis. An MLP neural network, taking BG morphological parameters as input, extracts bioactive features from these datasets. A rabbit tibial defect model then validates 4D‐printed MABS for adaptability and bone regeneration in critical defects.
Xiongjie Liang, Yuechi Zhang, Weifeng Hu, Shiyan Lv, Fan Jia, Yan Zhang, Feng Wu, Changjiang Yang, Guanqi Zhen, Jinglong Yan, Xu Cui, Wei Zhao, Guanghua Chen   +12 more
wiley   +1 more source

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

Multi-scale molecular photoacoustic tomography of gene expression.

PLoS ONE, 2012
Photoacoustic tomography (PAT) is a molecular imaging technology. Unlike conventional reporter gene imaging, which is usually based on fluorescence, photoacoustic reporter gene imaging relies only on optical absorption. This work demonstrates several key
Xin Cai, Li Li, Arie Krumholz, Zijian Guo, Todd N Erpelding, Chi Zhang, Yu Zhang, Younan Xia, Lihong V Wang   +8 more
doaj   +1 more source

Single-shot photoacoustic microscopy of hemoglobin concentration, oxygen saturation, and blood flow in sub-microseconds

Photoacoustics, 2020
We present fast functional optical-resolution photoacoustic microscopy (OR-PAM) that can simultaneously image hemoglobin concentration, blood flow speed, and oxygen saturation with three-pulse excitation. To instantaneously determine the blood flow speed,
Chao Liu, Yizhi Liang, Lidai Wang
doaj   +1 more source

Laser Photoacoustic Microscopy

The Review of Laser Engineering, 1983
We have performed photoacoustic micro-imaging using a microphone detection technique. A microcomputer controlled photoacoustic imaging system is developed. A sample on a sensitive photoacoustic cell is scanned mechanically and photoacoustic signals generated by a focused laser beam are detected with a condenser microphone and a lock-in amplifier.
YATAGAI, Toyohiko, ITOH, Masahide, HINO, Makoto, TAKAHASHI, Ichirou, SAITO, Hiroyoshi, KIM, Pil Hyon, NAMBA, Susumu   +6 more
openaire   +2 more sources

Photoacoustic microscopy of blood pulse wave [PDF]

Journal of Biomedical Optics, 2012
Blood pulse wave velocity (PWV) is an important physiological parameter that characterizes vascular stiffness. In this letter, we present electrocardiogram-synchronized, photoacoustic microscopy for noninvasive quantification of the PWV in the peripheral vessels of living mice.
Yeh, Chenghung, Hu, Song, Maslov, Konstantin, Wang, Lihong V.   +3 more
openaire   +4 more sources

Flanking‐Group Engineering Unlocks Emerging Functionalities in Diketopyrrolopyrrole Semiconductors

Advanced Science, EarlyView.
This review presents a comprehensive and unified perspective of flanking‐group engineering in Diketopyrrolopyrrole (DPP) based organic semiconductors that connects molecular‐level design with cross‐device functionalities. By integrating insights from molecular design, solid‐state packing, and device physics, this review seeks to establish general ...
Xiaoyun Wu, Shanshan Zhou, Meng Li, Aung Ko Ko Kyaw, Xiao‐Lei Shi, Qian Liu   +5 more
wiley   +1 more source

Photoacoustic microscopy: principles and biomedical applications [PDF]

Biomedical Engineering Letters, 2018
Photoacoustic microscopy (PAM) has become an increasingly popular technology for biomedical applications, providing anatomical, functional, and molecular information. In this concise review, we first introduce the basic principles and typical system designs of PAM, including optical-resolution PAM and acoustic-resolution PAM.
Wei Liu, Junjie Yao
openaire   +2 more sources

Engineering‐Modulated Molybdenum Enzymes Strategy for Tumor‐Specific Metabolic‐Immunotherapy

Advanced Science, EarlyView.
Biodegradable molybdenum sulfide nanoparticles were synthesized via a one‐pot strategy to increase molybdenum enzyme activity and thus effectively potentiate anti‐tumor immunity by integrating molybdenum‐based metalloimmunotherapy with hydrogen sulfide gas therapy.
Xiaoxiao Pan, Zifan Pei, Jie Wu, Nan Jiang, Qian Li, Yuqi Yang, Jie Cao, Yechen Huang, Shumin Sun, Qialu Du, Zhicheng Liu, Lin Zhang, Fei Gong, Jinhua Zhou, Liang Cheng   +14 more
wiley   +1 more source

Unsupervised inter-domain transformation for virtually stained high-resolution mid-infrared photoacoustic microscopy using explainable deep learning

Nature Communications
Mid-infrared photoacoustic microscopy can capture biochemical information without staining. However, the long mid-infrared optical wavelengths make the spatial resolution of photoacoustic microscopy significantly poorer than that of conventional confocal
Eunwoo Park, Sampa Misra, Dong Gyu Hwang, Chiho Yoon, Joongho Ahn, Donggyu Kim, Jinah Jang, Chulhong Kim   +7 more
doaj   +1 more source