Ultrafast and nonlinear spectroscopy of brilliant green-based nanoGUMBOS with enhanced near-infrared emission

These results show that nanoGUMBOS exhibit altered ultrafast and nonlinear spectroscopy that is beneficial for various applications including nonlinear imaging probes, biomedical imaging, and molecular sensing

Tony E. Karam; Noureen Siraj; Zhenyu Zhang; Abdulrahman F. Ezzir; Isiah M. Warner; Louis H. Haber

2017

Scholarcy highlights

  • The synthesis, characterization, ultrafast dynamics, and nonlinear spectroscopy of 30 nm nanospheres of brilliant green–bis(pentafluoroethylsulfonyl)imide in water are reported. These thermally stable nanoparticles are derived from a group of uniform materials based on organic salts that exhibit enhanced near-infrared emission compared with the molecular dye in water
  • The examination of ultrafast transient absorption spectroscopy results reveals that the overall excited-state relaxation lifetimes of nanoGUMBOS are longer than the brilliant green molecular dye in water due to steric hindrance of the torsional degrees of freedom of the phenyl rings around the central carbon
  • The second harmonic generation signal of nanoGUMBOS is enhanced by approximately 7 times and 23 times as compared with colloidal gold nanoparticles of the same size and the brilliant green molecular dye in water, respectively
  • A very clear third harmonic generation signal is observed from the nanoGUMBOS but not from either the molecular dye or the gold nanoparticles. These results show that nanoGUMBOS exhibit altered ultrafast and nonlinear spectroscopy that is beneficial for various applications including nonlinear imaging probes, biomedical imaging, and molecular sensing
  • We report the synthesis, characterization, excited-state dynamics, and nonlinear optical spectroscopy of brilliant green–bis(pentafluoroethylsulfonyl)imide nanoGUMBOS
  • The results from the study of these novel molecular-based nanomaterials demonstrate that nanoGUMBOS are excellent candidates for sensing, imaging, and labeling applications in biological systems

Need more features? Save interactive summary cards to your Scholarcy Library.