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Issue 1, 2019
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All-optical switching in dye-doped DNA nanofibers

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Abstract

All-optical switches are introduced which are based on deoxyribonucleic acid (DNA) in the form of electrospun fibers, where DNA is semi-intercalated with a push–pull, luminescent nonlinear pyrazoline derivative. Optical birefringence is found in the organic nanofibers, with fully reversible switching controlled through continuous-wave laser irradiation. The photoinduced signal is remarkably large, with birefringence highlighted by optically-driven refractive index anisotropy approaching 0.001. Sub-millisecond characteristic switching times are found. Integrating dye-intercalated DNA complex systems in organic nanofibers, as a convenient and efficient approach to template molecular organization and control it by external stimuli, might open new routes for realizing optical logic gates, reconfigurable photonic networks and sensors through physically-transient biopolymer components.

Graphical abstract: All-optical switching in dye-doped DNA nanofibers

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Publication details

The article was received on 15 Sep 2018, accepted on 09 Nov 2018 and first published on 11 Dec 2018


Article type: Paper
DOI: 10.1039/C8TC04677H
J. Mater. Chem. C, 2019,7, 170-176
  • Open access: Creative Commons BY-NC license
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    All-optical switching in dye-doped DNA nanofibers

    A. Szukalski, M. Moffa, A. Camposeo, D. Pisignano and J. Mysliwiec, J. Mater. Chem. C, 2019, 7, 170
    DOI: 10.1039/C8TC04677H

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