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Fig. 1 | Journal of Nanobiotechnology

Fig. 1

From: A universal strategy for the fabrication of single-photon and multiphoton NIR nanoparticles by loading organic dyes into water-soluble polymer nanosponges

Fig. 1

a Chemical structures and their corresponding fluorescence regions of organic dyes, including OPVs [242 (NIR)], DSSCs [YI-1 (NIR), YI-3 (red), YI-8 (red)], OLEDs [ADF1 (red), ADF-2 (green), ADF-3 (blue), and DTDPTID (NIR)], and commercial materials [Rhodamine 6G (R6G) (orange-red), sodium iron chlorophyllin (FeChl) (red), and CY5 (red)]. b Schematic illustration for the sponge-like swelling nature of the PSMA NPs capable of physical adsorption these photosensitive molecules into the interspace. c The utility of the CW and fs laser to make the dye-loaded PSMA NPs fluorescent induction (via single-photon and two-photon absorption) of single-photon/multiphoton imaging in cellular and blood vessel and NIR-PDT (via an intersystem crossing pathway) in bladder tumor

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