Ultrasonic photoacoustic emitter of graphene-nanocomposites film on a flexible substrate

Vella, Daniele; Mrzel, Aleš; Drnovšek, Aljaž; Shvalya, Vasyl; Jezeršek, Matija

doi:10.1016/j.pacs.2022.100413

Cited by 8 publications

(4 citation statements)

References 59 publications

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“…Jezerresk et al. proposed an ultrasonic PA emitter by a graphene-nanocomposites film on a flexible substrate 18 . The proposed strategies provide effective methods for dynamically manipulating the acoustic field in PA transmitters, which can have significant applications in various fields.…”

Section: Pai Plus Treatmentmentioning

confidence: 99%

“…9 emitter by a graphene-nanocomposites film on a flexible substrate. 18 The proposed strategies provide effective methods for dynamically manipulating the acoustic field in PA transmitters, which can have significant applications in various fields. Du et al presented the development of a candle soot fiber optoacoustic emitter (CSFOE) that can generate high pressure of over 10 MPa with a central frequency of 12.8 MHz, enabling highly efficient neuromodulation in vitro.…”

Section: Pai-enabled Ultrasound Treatmentmentioning

confidence: 99%

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Photoacoustic imaging plus X: a review

Jiang,

Zhu,

Tong

et al. 2023

J. Biomed. Opt.

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. Significance Photoacoustic (PA) imaging (PAI) represents an emerging modality within the realm of biomedical imaging technology. It seamlessly blends the wealth of optical contrast with the remarkable depth of penetration offered by ultrasound. These distinctive features of PAI hold tremendous potential for various applications, including early cancer detection, functional imaging, hybrid imaging, monitoring ablation therapy, and providing guidance during surgical procedures. The synergy between PAI and other cutting-edge technologies not only enhances its capabilities but also propels it toward broader clinical applicability. Aim The integration of PAI with advanced technology for PA signal detection, signal processing, image reconstruction, hybrid imaging, and clinical applications has significantly bolstered the capabilities of PAI. This review endeavor contributes to a deeper comprehension of how the synergy between PAI and other advanced technologies can lead to improved applications. Approach An examination of the evolving research frontiers in PAI, integrated with other advanced technologies, reveals six key categories named “PAI plus X.” These categories encompass a range of topics, including but not limited to PAI plus treatment, PAI plus circuits design, PAI plus accurate positioning system, PAI plus fast scanning systems, PAI plus ultrasound sensors, PAI plus advanced laser sources, PAI plus deep learning, and PAI plus other imaging modalities. Results After conducting a comprehensive review of the existing literature and research on PAI integrated with other technologies, various proposals have emerged to advance the development of PAI plus X. These proposals aim to enhance system hardware, improve imaging quality, and address clinical challenges effectively. Conclusions The progression of innovative and sophisticated approaches within each category of PAI plus X is positioned to drive significant advancements in both the development of PAI technology and its clinical applications. Furthermore, PAI not only has the potential to integrate with the above-mentioned technologies but also to broaden its applications even further.

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Section: Pai Plus Treatmentmentioning

confidence: 99%

Section: Pai-enabled Ultrasound Treatmentmentioning

confidence: 99%

Photoacoustic imaging plus X: a review

Jiang,

Zhu,

Tong

et al. 2023

J. Biomed. Opt.

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“…Previous implementations have used free-space [17,10] or fiber-based delivery [18,19,20,21,22,23,24,25,26,27,28], however these methods typically produce static linear phased arrays which are fixed in both number and size. Acoustic phase variation can also be achieved by the use of acoustic lenses which, analogous to optical lenses, directly modulate the incident acoustic pulse [29,30,31,32,33,34,35,36]. However, these are also static and inflexible in modulating the resulting acoustic wavefront.…”

Section: Introductionmentioning

confidence: 99%

Tailored Photoacoustic Apertures with Superimposed Optical Holograms

Howe

Tang

Rowlands

2023

Preprint

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A new method of generating potentially arbitrary photoacoustic wavefronts with optical holograms is presented. This method uses nanosecond laser pulses at 1064 nm that are split into four time-delayed components by means of a configurable multipass optical delay apparatus which serves to map the pulses onto phase-delayed regions of a given acoustic wavefront. A single spatial light modulator generates separate holograms for each component which are imaged onto a photoacoustic transducer comprised of a thermoelastic polymer. The spatially- and temporally-modulated holograms facilitate a phased array effect which enables beam steering of the resulting acoustic pulse. For a first experimental demonstration of the method, as verified by simulation, an acoustic beam is steered in four directions by around 5 degrees.

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“…Absorber materials consisting of carbon nanoparticles are frequently used, due to their capability to absorb linearly the incident light in a large range of wavelengths, and due to the nanometric scale, which allows the rapid and efficient deposition of thermal energy in the material which will suffer the expansion. Carbon black, 19 carbon nanotubes, 20,21 carbon nanobers, 22 reduced graphene oxide 23 and graphene 24 or candle soot nanoparticles 25 are some of the commonly used materials. Other absorbers can also be used, such as dyes embedded in polystyrene, 11 metallic lms, gold nanostructures or nanoparticles.…”

Section: Introductionmentioning

confidence: 99%