Issue 17, 2013
From the journal:

Lab on a Chip

Self-assembled DNA tetrahedral optofluidic lasers with precise and tunable gain control†

Qiushu Chen,‡a   Huajie Liu,‡b   Wonsuk Lee,‡ac   Yuze Sun,a   Dan Zhu,b   Hao Pei,b   Chunhai Fan*b  and  Xudong Fan*a  

* Corresponding authors

a Department of Biomedical Engineering, University of Michigan, 1101 Beal Ave., Ann Arbor, MI 48109, United States
E-mail: xsfan@umich.edu

b Division of Physical Biology, and Bioimaging Center, Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
E-mail: fchh@sinap.ac.cn

c Department of Electrical Engineering and Computer Science, University of Michigan, 1301 Beal Avenue, Ann Arbor, MI 48109, United States

Abstract

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.

Graphical abstract: Self-assembled DNA tetrahedral optofluidic lasers with precise and tunable gain control

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Article information

DOI
https://doi.org/10.1039/C3LC50629K
Article type
Communication
Submitted
22 May 2013
Accepted
24 Jun 2013
First published
24 Jun 2013

Lab Chip, 2013,13, 3351-3354

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Self-assembled DNA tetrahedral optofluidic lasers with precise and tunable gain control

Q. Chen, H. Liu, W. Lee, Y. Sun, D. Zhu, H. Pei, C. Fan and X. Fan, Lab Chip, 2013, 13, 3351 DOI: 10.1039/C3LC50629K

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