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- W2073344039 abstract "We present a long-circulating biodegradable core-crosslinked polymeric micelle (d-CCPM) for the nuclear/optical imaging of tumors. The d-CCPM was derived from an amphiphilic block-copolymer consisting of a hydrophilic block of brush-like poly(ethylene glycol) and a hydrophobic block containing cleavable pendent triethoxysilane. The resultant imaging tracer had prolonged circulation in the blood (half-life of clearance phase = 36.5 hrs), substantial accumulation in tumor (% injected dose per gram of tissue = 8.5% ± 1.0% at 24 hrs post-injection) and minimal uptake in the liver (5.0% ± 0.1%) or spleen (5.1% ± 0.3%). Both nuclear and near-infrared fluorescence imaging revealed strong signals in tumor regions. At 48 hrs, nuclear imaging exhibited tumor-to-liver and tumor-to-blood ratios of 1.4 and 1.1, respectively. The degradation of d-CCPM was studied in vitro at pH 5.0 and 37°C; and confirmed by transmission electron microscopy confirmed. Our study indicates that the d-CCPM system is an effective probe for dual-modal cancer imaging and a potential safe platform nanocarrier for the delivery of anti-cancer drugs and cancer therapy." @default.
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- W2073344039 date "2011-12-08" @default.
- W2073344039 modified "2023-09-27" @default.
- W2073344039 title "Dual-Modal Tumor Imaging via Long-Circulating Biodegradable Core-Cross-Linked Polymeric Micelles" @default.
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- W2073344039 doi "https://doi.org/10.1021/mz200034f" @default.
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