Figure 2From: Engineering of near infrared fluorescent proteinoid-poly(L-lactic acid) particles for in vivo colon cancer detection Characterization of the NIR fluorescent P(EF-PLLA) nanoparticles. (A, B) SEM image and hydrodynamic size histogram of the NIR fluorescent P(EF-PLLA) nanoparticles; (C, D) emission and absorbance spectra of free ICG (dotted lines) and nanoparticles containing ICG (solid lines), respectively.Back to article page