Results 81 to 90 of about 5,293,624 (249)

Measurement of Wavelength-Resolved Light Absorption by Aerosols Utilizing a UV-VIS Extinction Cell [PDF]

, 2005
The principle, technical details, and performance of the long path extinction spectrometer (LOPES), a new folded-path extinction cell with a spectral range from the mid-UV (200 nm) to the near infrared (1015 nm), is presented.
Schurath, Ulrich, Klein, Karl-Friedrich, Thielmann, Axel, Schurath, U., Möhler, Ottmar, Schmid, O., Gimmler, M., Schmid, Otmar, Fritzsche, L., Andreae, M. O., Petzold, Andreas, Fritzsche, Lutz, Schnaiter, M., Mohler, O. M., Thielmann, A., Helas, Günther, Andreae, Meinrat O., Petzold, A., Helas, G., Schnaiter, Martin, Gimmler, Melanie, Linke, Claudia, Klein, K. F., Linke, C.   +23 more
core   +1 more source

Photoacoustic correlation technique for low-speed flow measurement [PDF]

SPIE Proceedings, 2010
A photoacoustic correlation spectroscopy (PACS) technique was proposed for the first time. This technique is inspired by its optical counterpart-the fluorescence correlation spectroscopy (FCS), which is widely used in the characterization of the dynamics of fluorescent species.
Sung-Liang, Chen, Tao, Ling, Sheng-Wen, Huang, Hyoung Won, Baac, Yu-Chung, Chang, L Jay, Guo   +5 more
openaire   +2 more sources

Review of Gastrointestinal Capsule Robots: Materials, Actuation, Diagnostics, and Therapeutics

Advanced Science, EarlyView.
This review examines gastrointestinal capsule robots through a systems engineering lens, covering shell materials, actuation and localization strategies, diagnostic modalities, therapeutic interventions, and commercialization status. By mapping the complete technological chain from fabrication to clinical deployment, this work identifies critical gaps ...
Zengsheng Li, Zhongguo Ren, Yiliang Lin, Xianfeng Xia, Tianlong Li, Kai Fung Chan, Philip Wai Yan Chiu, Wei Peng Yong, Mengmeng Sun   +8 more
wiley   +1 more source

Photoacoustic Techniques for Bone Characterization

AbstractBiomedical photoacoustics (PA) combines the advantages of selective optical absorption of biological tissues and high penetration depth of ultrasound, providing information on the macroscopic physiological structure and microscopic molecular level of biological tissues.
Ting Feng, Weiya Xie, Wenyi Xu, Ya Gao, Teng Liu, Dean Ta, Menglu Qian, Qian Cheng   +7 more
openaire   +1 more source

Potential of Nanoparticle‐Based Phototherapies for Future Treatment of Uveal Melanoma

Advanced Science, EarlyView.
This review evaluates nanoparticle‐based phototherapies for uveal melanoma, highlighting emerging strategies to enhance tumor targeting, light delivery, and treatment precision. Preclinical data indicate improved efficacy and reduced toxicity, supporting their potential to enhance localized treatment and future translational advances. (Generated by the
Emilie Lambert, Christophe Nguyen, Sean Edward Dunn, Magali Gary‐Bobo, Jérôme Lacombe, Justin Moser, Frédéric Zenhausern, Jean‐Olivier Durand, Frédérique Cunin   +8 more
wiley   +1 more source

Photoacoustic microscopy of nanoparticles in cells and tissues [PDF]

, 2013
textMolecular photoacoustic imaging is an exciting new field that promises to visualize molecular indicators of disease. The objective of this dissertation is to progress molecular imaging by providing a photoacoustic microscopy platform to better ...
Cook, Jason Ray
core  

Detecting parts-per-billion carbon monoxide with an ultra-enhanced near-infrared photoacoustic sensor

Photoacoustics
An ultra-enhanced near-infrared (NIR) photoacoustic gas sensor was developed by integrating three enhancing techniques: (a) boosting the excitation power up to 2 W via a custom-built large-mode erbium doped fiber amplifier (EDFA), (b) exploiting the ...
Yaopeng Cheng, Ting Chen, Ruili Zhang, Sailing He   +3 more
doaj   +1 more source

Precision Oncology via Radiotherapy‐Triggered Drug Delivery: Mechanisms, Molecular Engineering, and Clinical Translation

Advanced Science, EarlyView.
This review redefines radiotherapy‐triggered drug delivery systems through structural disassembly and molecular actuation, proposing a translation‐oriented framework for dose‐correlated activation to advance clinically integrated precision oncology. ABSTRACT Radiotherapy‐triggered drug delivery systems (RDDS) promise to integrate the spatial precision ...
Jianv Jiang, Tanfeng Zhang, Junliang Dong, Wenjing Sun   +3 more
wiley   +1 more source

Tetramethylbenzidine: An Acoustogenic Photoacoustic Probe for Reactive Oxygen Species Detection

Sensors, 2020
Photoacoustic imaging is attracting a great deal of interest owing to its distinct advantages over other imaging techniques such as fluorescence or magnetic resonance image.
Roger Bresolí-Obach, Marcello Frattini, Stefania Abbruzzetti, Cristiano Viappiani, Montserrat Agut, Santi Nonell   +5 more
doaj   +1 more source

A NOVEL TECHNIQUE FOR THE ENHANCEMENT OF PHOTOACOUSTIC SIGNAL

Le Journal de Physique Colloques, 1983
The photoacoustic signal is found to be enhanced several fold by the introduction of a volatile liquid into the cell. The enhancement is more for lower optical absorption coefficient and higher chopping frequency and is proportional to the vapour pressure of the liquid.
Somasundaram, T, Ganguly, P
openaire   +1 more source