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US09023611B2 Charged-balanced imaging agents 有权
带电平衡成像剂

Charged-balanced imaging agents
Abstract:
The present invention relates to compositions and methods of optically imaging tissues or cells using imaging agents have in vivo properties that result in signal-to-background ratios of at least about 1:1. TL is a targeting ligand and n is −1, 0 or +1.
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