Fig. 1. (a) Scheme representing ultrasound mediated coupling of aromatic moieties into hydroxylated and high molecular weight species and their self-assembly to form nanoparticles. The time scale for bubble collapse is based on single bubble dynamics calculations. (b) SEM and fluorescent microscopy images of BTEE nanoparticles (c) Fluorescence emission spectra of BTEE nanoparticles at excitation wavelength 340 nm and 480 nm (d) Fluorescence excitation and emission spectra of BTEE nanoparticles at emission wavelength 530 nm and excitation wavelength 480 nm.³¹ (Reproduced from ref. 31 with permission from The Royal Society of Chemistry.).