2016
DOI: 10.1111/jmi.12396
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Hybrid photoacoustic and optical imaging of pigments in vegetative tissues

Abstract: Pigments in vegetative tissues have been a subject of intense research during the previous decades, since they play an active role in several molecular mechanisms regarding plants' physiology and function. Towards this direction, the imaging modality that has been extensively employed and represents the state of the art for mapping pigments' distribution is confocal microscopy. Despite the advantage of a high spatial resolution however, confocal microscopy provides a rather limited imaging depth and requires n… Show more

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Cited by 20 publications
(11 citation statements)
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“…During the last decade, photoacoustic imaging has gained a wide acceptance in biomedical research, finding numerous applications in cancer metabolism, and drug delivery studies . Beyond the frontiers of biomedicine, photoacoustic modalities have started being used in other fields, such as optometry and plant biology with highly promising results. Only very recently, photoacoustic imaging was introduced as a novel diagnostic tool in the context of cultural heritage (CH) science, with emphasis on the uncovering of hidden underdrawings in paintings .…”
Section: Discussionmentioning
confidence: 99%
“…During the last decade, photoacoustic imaging has gained a wide acceptance in biomedical research, finding numerous applications in cancer metabolism, and drug delivery studies . Beyond the frontiers of biomedicine, photoacoustic modalities have started being used in other fields, such as optometry and plant biology with highly promising results. Only very recently, photoacoustic imaging was introduced as a novel diagnostic tool in the context of cultural heritage (CH) science, with emphasis on the uncovering of hidden underdrawings in paintings .…”
Section: Discussionmentioning
confidence: 99%
“…In this direction, the highly promising capabilities of PA diagnosis have been recently exploited in several applications involving the in vivo acquisition of valuable anatomical, molecular, functional, and flow dynamic information, towards the understanding of fundamental biological mechanisms such as cancer formation and growth [ 1 ]. PA imaging is based on the formation of acoustic waves following the absorption of intensity-modulated (typically pulsed) optical radiation by a material [ 2 ]. During the incidence of a short light pulse, a portion of the absorbed optical energy is converted into heat, inducing a rapid thermoelastic expansion of the medium and the subsequent generation of an initial pressure that propagates in space in the form of ultrasonic waves.…”
Section: Introductionmentioning
confidence: 99%
“…The ability of PA sensing to provide molecular absorption specificity [ 3 ], and the low attenuation of PA waves [ 4 ], provide unique advantages towards developing novel systems for biomedical imaging and sensing applications that can obtain valuable diagnostic information deeper in highly scattering tissues when compared to pure optical imaging approaches [ 5 ]. In this direction, special emphasis has been given to developing reconstruction-based PA tomography (PAT) [ 6 ], PA microscopy (PAM) [ 7 ], or even hybrid imaging systems integrating both PA and optical [ 8 , 9 , 10 ], or ultrasound [ 11 ] techniques into a single instrument. Moreover, several spectral unmixing techniques [ 12 , 13 ] have been utilized with multispectral PA imaging systems to provide spectroscopic information for endogenous and exogenous chromophores in tissues.…”
Section: Introductionmentioning
confidence: 99%