Results 1 to 10 of about 13,605,822 (324)
Photoacoustic effect applied on model membranes and living cells: direct observation with multiphoton excitation microscopy and long-term viability analysis. [PDF]
Sci Rep, 2020 The photoacoustic effect is generated when a variable light interacts with a strongly light-absorbing material. In water, it may produce hot bubbles and shock waves that could affect the integrity of nearby cellular membranes, opening transient pores ...
Galisteo-González F +4 more
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Amplification of photoacoustic effect in bimodal polymer particles by self-quenching of indocyanine green. [PDF]
Biomed Opt Express, 2019 A new type of bimodal contrast agent was made that is based on the self-quenching of indocyanine green (ICG) encapsulated in a biocompatible and biodegradable polymer shell.
Mokrousov MD +15 more
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Passive Photoacoustic Effect [PDF]
, 2022 Photoacoustic effect refers to the acoustic generation induced by laser irradiation, where nanosecond pulsed laser source is normally used to provide instantaneous heating and thermoelastic expansion of the sample. More generally, photoacoustic generation requires active intensity modulation of laser source to produce sharp temperature gradient, which ...
Yiyun Wang +4 more
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When pressure meets light: detecting the photoacoustic effect at the origin. [PDF]
Light Sci Appl, 2017 Modern optical microscopy1, including confocal microscopy, two-photon microscopy and optical coherence tomography (OCT), has revolutionized life sciences by providing detailed information of biological samples with cellular and subcellular resolutions ...
Yao J.
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Sound generation using photoacoustic effect [PDF]
Proceedings of Meetings on Acoustics, 2013 It is highly important to generate sound sources in mid air for several applications such as virtual realty and rigorous acoustic measurement. One possible solution for generating sound sources in mid air is photoacoustic effect that generates sounds from the alternate-current component of air expansion due to the heat generated by light absorption of ...
Kaoru Yamabe +2 more
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Photoacoustics, 2022 Successful transfer of photoacoustic gas sensors from laboratory to real-life applications requires knowledge about potential cross-sensitivities towards environmental and gas matrix changes.
Max Müller +6 more
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Music-of-light stethoscope: a demonstration of the photoacoustic effect. [PDF]
Phys Educ, 2016 In this paper we present a system aimed at demonstrating the photoacoustic (PA) effect for educational purposes. PA imaging is a hybrid imaging modality that requires no contrast agent and has a great potential for spine and brain lesion characterisation,
Nikitichev DI +8 more
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Evidence of anti-inflammatory effect and percutaneous penetration of a topically applied fish oil preparation: a photoacoustic spectroscopy study [PDF]
Journal of Biomedical Optics, 2017 . This paper investigates the topical anti-inflammatory effect of a fish oil preparation (FOP) in a croton oil (CO) model of skin inflammation. The photoacoustic spectroscopy (PAS) was applied to estimate the percutaneous penetration of the FOP and as a ...
Franciele Queiroz Ames +7 more
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Investigation of the Effect of the Skull in Transcranial Photoacoustic Imaging: A Preliminary Ex Vivo Study [PDF]
Italian National Conference on Sensors, 2020 Although transcranial photoacoustic imaging (TCPAI) has been used in small animal brain imaging, in animals with thicker skull bones or in humans both light illumination and ultrasound propagation paths are affected.
Rayyan Manwar +2 more
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Photoacoustic effect in a stratified atmosphere
Physical Review E, 2018 The photoacoustic effect is usually studied in an isotropic medium on a laboratory scale. However, it is possible to use optical sources to launch pressure perturbations in the atmosphere consisting of both acoustic and gravity waves. Here photoacoustic theory is extended to incorporate the effects of a stratified atmosphere and a gravitational field ...
Wenyu Bai, Gerald J. Diebold
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