Get access

Fastest Thermal Isomerization of an Azobenzene for Nanosecond Photoswitching Applications under Physiological Conditions

Authors

  • Dr. Jaume Garcia-Amorós,

    1. Grup de Materials Orgànics, Institut de Nanociència i Nanotecnologia (IN2UB), Departament de Química Orgànica, Universitat de Barcelona, Martí i Franquès 1, 08028 Barcelona (Spain)
    Search for more papers by this author
  • Mireia Díaz-Lobo,

    1. Grup de Materials Orgànics, Institut de Nanociència i Nanotecnologia (IN2UB), Departament de Química Orgànica, Universitat de Barcelona, Martí i Franquès 1, 08028 Barcelona (Spain)
    Search for more papers by this author
  • Prof. Dr. Santi Nonell,

    1. Grup d'Enginyeria Molecular, Institut Químic de Sarrià, Universitat Ramón Llull, Via Augusta 390, 08019 Barcelona (Spain)
    Search for more papers by this author
  • Prof. Dr. Dolores Velasco

    Corresponding author
    1. Grup de Materials Orgànics, Institut de Nanociència i Nanotecnologia (IN2UB), Departament de Química Orgànica, Universitat de Barcelona, Martí i Franquès 1, 08028 Barcelona (Spain)
    • Grup de Materials Orgànics, Institut de Nanociència i Nanotecnologia (IN2UB), Departament de Química Orgànica, Universitat de Barcelona, Martí i Franquès 1, 08028 Barcelona (Spain)
    Search for more papers by this author

  • Financial support for this research was obtained from the Ministerio de Ciencia e Innovación (Spain) through grants CTQ2009-13797 and CTQ2012-36074. M.D.-L. is grateful for a doctoral grant (BES-2009-029354) from the Ministerio de Ciencia e Innovación (Spain).

Abstract

original image

When speed is of the essence: After photoisomerization to its metastable cis form, an azo dye must undergo fast thermal isomerization back to the trans form to be suitable for real-time information transmission. The azopyrimidine shown has a relaxation time (τ) of just 40 ns under physiological conditions, as well as high biocompatibility, as determined by Escherichia coli growth in its presence (see picture).

Get access to the full text of this article

Ancillary