Phosphonated near-infrared fluorophores for biomedical imaging of bone.
Phosphonated near-infrared fluorophores for biomedical imaging of bone.
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DOI:
10.1002/anie.201404930
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发表时间:
2014-09-26
影响因子:
16.6
通讯作者:
Choi, Hak Soo
中科院分区:
文献类型:
--
作者:
Hyun, Hoon;Wada, Hideyuki;Bao, Kai;Gravier, Julien;Yadav, Yogesh;Laramie, Matt;Henary, Maged;Frangioni, John V.;Choi, Hak Soo
The conventional method for creating targeted contrast agents is to conjugate separate targeting and fluorophore domains. In this study we report a new strategy based on incorporation of targeting moieties into the non-resonant structure of pentamethine and heptamethine indocyanines. Using the known affinity of phosphonates for bone minerals as a model system, we have synthesized two families of bifunctional molecules that target bone without the need for a traditional bisphosphonate. With peak fluorescence emission at ≈ 700 nm or ≈ 800 nm, these molecules can be used for FLARE dual-channel imaging. Longitudinal FLARE studies in mice demonstrate that phosphonated near-infrared fluorophores remain stable in bone for over 5 weeks, and histological analysis demonstrates incorporation into bone matrix. Taken together, we describe a new strategy for creating ultracompact, targeted, near-infrared fluorophores for various bioimaging applications.
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12.4
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Ashitate Y;Hyun H;Kim SH;Lee JH;Henary M;Frangioni JV;Choi HS
通讯作者:
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Kaji, E
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12.4
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Park MH;Hyun H;Ashitate Y;Wada H;Park G;Lee JH;Njiojob C;Henary M;Frangioni JV;Choi HS
通讯作者:
Choi HS