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13 March 2024 Single-shot detection and manipulation of silica microparticles coated with a polypyrrole-gold composite shell
Daniil Nozdriukhin, Weiye Li, Shuxin Lyu, Marco Cattaneo, Michael Reiss, Outi Supponen, Daniel Razansky, Xosé Luís Deán-Ben
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Proceedings Volume PC12842, Photons Plus Ultrasound: Imaging and Sensing 2024; PC1284216 (2024) https://doi.org/10.1117/12.3003185
Event: SPIE BiOS, 2024, San Francisco, California, United States
Abstract
The feasibility to individually localize and manipulate individual particles flowing in blood can lead to important advances in super-resolution imaging, targeted drug delivery, and other fields. State-of-the-art optoacoustic (OA) tomographic imaging systems provide a unique high frame rate imaging capability in three dimensions, which can be exploited for this purpose if particles are sufficiently absorbing. In this work, we introduce silica-core microparticles with a polypyrrole-gold composite shell deposited with a layer-by-layer approach. Microparticles as small as 2 microns could be individually detected. Laser-induced motion of the particles was also observed, which provides a new means for motion control.
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Daniil Nozdriukhin, Weiye Li, Shuxin Lyu, Marco Cattaneo, Michael Reiss, Outi Supponen, Daniel Razansky, and Xosé Luís Deán-Ben "Single-shot detection and manipulation of silica microparticles coated with a polypyrrole-gold composite shell", Proc. SPIE PC12842, Photons Plus Ultrasound: Imaging and Sensing 2024, PC1284216 (13 March 2024); https://doi.org/10.1117/12.3003185
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KEYWORDS
Silica
Particles
Biology
Capillaries
Laser soldering
Medicine
Motion controllers
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