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We report the use of small molecule and block copolymer RGD peptide conjugates for deep ex vivo imaging of tumor vasculature in “whole” excised tumors using two-photon fluorescence microscopy (2PFM). The fluorescent probes were administered to mice via tail-vein injection, after which the tumors were excised, fixed, and imaged without further sample preparation. Both RGD conjugates demonstrated specific...
We report two-photon fluorescence microscopy (2PFM) imaging and in vitro cell viability of a new, efficient, lysosome-selective system based on a two-photon absorbing (2PA) fluorescent probe (I) encapsulated in Pluronic® F-127 micelles. Preparation of dye I was accomplished via microwave-assisted synthesis, resulting in improved yields and reduced reaction times. Photophysical characterization revealed...
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