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. 2017 Sep 12;12:6787–6797. doi: 10.2147/IJN.S139246

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© 2017 Cui et al. This work is published and licensed by Dove Medical Press Limited

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Schematic illustration of the synthesis of Gd₂O₃-FI-PEG-BBN.

Abbreviations: BBN, bombesin; EDC⋅HCl, 1-[3-(dimethylamino)propyl]-3-ethylcarbodiimide hydrochloride; FI, 5(6)-carboxyfluorescein; Gd₂O₃, gadolinium oxide; NHS, N-hydroxysuccinimide; PEG, polyethylene glycol; r.t., room temperature; TMAH, tetramethylammonium hydroxide.