Surface-Tunable Bioluminescence Resonance Energy Transfer via Geometry-Controlled ZnO Nanorod Coordination

Autor: Soo Min Hwang, Young-Pil Kim, Jung Heon Lee, Hansoo Park, Geun Chul Park, Butaek Lim, Jun Hyung Lim, Jinho Joo, Seung Muk Lee, Jung Ho Kim
Rok vydání: 2015
Předmět:
Zdroj: Small. 11:3469-3475
ISSN: 1613-6810
DOI: 10.1002/smll.201403700
Popis: The use of ZnO nanorods (NRs) as an effective coordinator and biosensing platform to create bioluminescence resonance energy transfer (BRET) is reported. Herein, a hydrothermal approach is applied to obtain morphologically controlled ZnO NRs, which are directly bound to luciferase (Luc) and carboxy-modified quantum dot (QD) acting as a donor-acceptor pair for BRET. BRET efficiency varies significantly with the geometry of ZnO NRs, which modulates the coordination between hexahistidine-tagged Luc (Luc-His6 ) and QD, owing to the combined effect of the total surface area consisting of (001) and (100) planes and their surface polarities. Unlike typical QD-BRET reactions with metal ions (e.g., zinc ions), a geometry-controlled ZnO NR platform can facilitate the design of surface-initiated BRET sensors without being supplemented by copious metal ions: the geometry-controlled ZnO NR platform can therefore pave the way for nanostructure-based biosensors with enhanced analytical performance.
Databáze: OpenAIRE