Biosensing and imaging based on bioluminescence resonance energy transfer.

Biosensing and imaging based on bioluminescence resonance energy transfer.
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基于生物发光共振能传递的生物传感和成像。

DOI:
10.1016/j.copbio.2009.01.001
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发表时间:
2009-02
影响因子:
7.7
通讯作者:
Rao, Jianghong
Rao, Jianghong
中科院分区:
工程技术1区
文献类型:
--
作者:
Xia, Zuyong;Rao, Jianghong

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生物发光共振能量转移(BRET)利用生物发光蛋白质产生的生化能量激发荧光团,并提供优于荧光能量转移(FRET)的额外优势,用于体内成像和生物传感。虽然荧光蛋白经常用作BRET受体,但小分子染料和纳米颗粒也可以用作受体荧光团。半导体荧光纳米晶体或量子点(QD)由于其高量子产率、大斯托克斯位移和长波长发射而特别适合用作BRET受体。本文综述了量子点在基于BRET的生物检测和成像中的应用潜力,并重点介绍了量子点BRET在生物传感和成像应用中的应用。新BRET受体的未来开发应进一步扩大BRET的多重能力,并提高其在体内成像应用中的适用性和灵敏度。
Bioluminescence resonance energy transfer (BRET) operates with biochemical energy generated by bioluminescent proteins to excite fluorophores and offers additional advantages over fluorescence energy transfer (FRET) for in vivo imaging and biosensing. While fluorescent proteins are frequently used as BRET acceptors, both small molecule dyes and nanoparticles can also serve as acceptor fluorophores. Semiconductor fluorescent nanocrystals or quantum dots (QDs) are particularly well-suited for use as BRET acceptors due to their high quantum yields, large Stokes shifts and long wavelength emission. This review examines the potential of QDs for BRET-based bioassays and imaging, and highlights examples of QD BRET for biosensing and imaging applications. Future development of new BRET acceptors should further expand the multiplexing capability of BRET and improve its applicability and sensitivity for in vivo imaging applications.
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