which can be used as photoacoustic imaging contrast agent
in vivo
mice
was synthesized by ring opening reaction of poly(isobutylene-
alt
-MAnh) with hydroxyl group. Near-infrared organic nanoparticle was formed in water with their hydrodynamic diameter of 60 nm. These nanoparticles were formed with a core of aza-bodipy dye and shell of polymer. Dynamic light scattering (DLS)
transmission electron microscopy (TEM) and ultraviolet-visible absorption spectra (UV-Vis) were used to characterize the morphology
size and optical property of the nanoparticles in aqueous solution. The results showed that the nanoparticles had uniform appearance and strong absorption in near-infrared area. Moreover
DLS was used to observe the stability of nanoparticles in serum and the size of nanoparticles was kept pratically constant within 24 h. Photothermal experiment was conducted to study the nanoparticle performance at different power and concentration
which exhibited excellent photothermal performance. MTT assay demonstrated that the nanoparticles had a good biocompatibility and photothermal performance at different concentrations. In addition
the photoacoustic property of the nanoparticles was studied by photoacoustic imaging and the results showed that they had strong photoacoustic signals at a low concentration. Photoacoustic imaging experiments on mice were also studied. It was found that tumor location on mice had a significant photoacoustic signal enhancement after tail vein injection of the nanoparticles. With 24 h of circulation in blood after injection of the nanoparticles
the photoacoustic signal disappeared
which indicated that the nanoparticles had good metabolic and biocompatibility.
High-sensitivity Visible-blind Near-infrared Narrowband Organic Photodetectors Realized by Controlling Trap Distribution
Semiconducting Polymer Nanoparticles for Optical Imaging: Self-luminescence Imaging and Photoacoustic Imaging
Glucose-isomerism Effect on Sugar-lectin Interaction of Glycopolymer
Related Author
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Related Institution
Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology
School of Chemistry and Chemical Engineering, Nanjing University
Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University
School of Chemistry and Chemical Engineering, Nanjing University