Abstract
Optically triggered perfluorohexane nanodroplets (PFHnDs) can repeatedly vaporize and recondense, providing photoacoustic (PA) and blinking ultrasound (US) signals in response to pulsed laser irradiation. This property of PFHnDs has led to the development of various US imaging modes, including super-resolution and background-free contrast-enhanced imaging. However, to utilize the full potential of PFHnDs, multi-wavelength PA imaging, followed by ultrafast US imaging, referred to as multispectral ultrafast US/PA imaging, is required. Thus, we built a combined system that can trigger and image the dynamic behavior of PFHnDs with various optical wavelengths.
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