PDMS composites with photostable NIR dyes for multi-modal ultrasound imaging

Article Acoustics

Laser-induced ultrasound transmitters for large-volume ultrasound tomography

D. Thompson et al.

Summary: The study presents a protocol for the design, fabrication, and characterization of laser-induced ultrasound transmitters tailored for ultrasound tomography of large-volume biomedical samples. By utilizing an analytic solution to the photoacoustic equation and evaluating the optical and acoustic properties of materials used in the transmitters, the researchers determined a specific mixture of carbon black and polydimethylsiloxane to achieve the desired frequency response. The fabricated transmitter demonstrated performance with a center frequency of 0.9 MHz, 200% bandwidth, and an opening angle of 45.8 degrees, capable of generating multi-kPa pressures over a wide depth range in water.

PHOTOACOUSTICS (2022)

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Article Chemistry, Multidisciplinary

CuInS2 Quantum Dot and Polydimethylsiloxane Nanocomposites for All-Optical Ultrasound and Photoacoustic Imaging

Semyon Bodian et al.

Summary: Dual-modality imaging using complementary modalities, such as all-optical ultrasound and photoacoustic imaging, is well-suited for guiding minimally invasive surgical procedures. Quantum dots, a promising material for these devices, provide wavelength-selective optical absorption for improved imaging capabilities.

ADVANCED MATERIALS INTERFACES (2021)

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Article Optics