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Thermoresponsive swelling of photoacoustic single-chain nanoparticles
Justus F Thümmler1, Ramesh Maragani1, Franz-Josef Schmitt2
1Institute of Chemistry, Faculty of Natural Sciences II, Martin Luther University Halle-Wittenberg, von-Danckelmann-Platz 4, Halle D-06120, Germany. wolfgang.binder@chemie.uni-halle.de.
Abstract:
NIR-fluorescent LCST-type single-chain nanoparticles (SCNPs) change their photophysical behaviour upon heating, caused by depletion of water from the swollen SCNP interiors. This thermoresponsive effect leads to a fluctuating photoacoustic (PA) signal which can be used as a contrast mechanism for PA imaging.

