Self-assembled DNA tetrahedral optofluidic lasers with precise and tunable gain control
- Self-assembled DNA tetrahedral optofluidic lasers with precise and tunable gain control
- 이원석; Qiushu Chen; Huajie Liu; Yuze Sun; Dan Zhu; Hao Pei; Chunhai Fan; Xudong Fan
- Issue Date
- Lab on a chip
- VOL 13, NO 17-3354
- We have applied self-assembled DNA tetrahedral nanostructures for the precise and tunable control of the gain in an optofluidic fluorescence resonance energy transfer (FRET) laser. By adjusting the ratio of the donor and the acceptor attached to the tetrahedral vertices, 3.8 times reduction in the lasing threshold and 28-fold enhancement in the lasing efficiency were demonstrated. This work takes advantage of the self-recognition and self-assembly capabilities of biomolecules with well-defined structures and addressability, enabling nano-engineering of the laser down to the molecular level.
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