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Bright and photostable TADF‐emitting zirconium(IV) pyridinedipyrrolide complexes : efficient dyes for decay time‐based temperature sensing and imaging

Andreas Russegger, Angela Debruyne (UGent) , Daniel Carvajal Berrio, Stefanie Fuchs, Julia Marzi, Katja Schenke‐Layland, Ruslan Dmitriev (UGent) and Sergey M. Borisov
(2023) ADVANCED OPTICAL MATERIALS. 11(9).
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Abstract
Luminescence thermometry represents a technique of choice for measurements in small objects and imaging of temperature distribution. However, most state-of-the-art luminescent probes are limited in spectral characteristics, brightness, photostability, and sensitivity. Molecular thermometers of the new generation utilizing air and moisture-stable zirconium(IV) pyridinedipyrrolide complexes can address all these limitations. The dyes emit pure thermally activated delayed fluorescence without any prompt fluorescence and show a unique combination of attractive features: a) visible light excitation and emission in the orange/red region, b) high luminescence brightness (quantum yields approximate to 0.5 in toluene and 0.8-1.0 in polystyrene matrix), c) excellent photostability, d) suitability for two-photon excitation and e) mono-exponential decay on the order of tens to hundreds of microseconds with strongly temperature-dependent lifetimes (between -2.5 and -2.9% K-1 in polystyrene at 25 degrees C). Immobilization in gas-blocking polymers yields sensing materials for self-referenced decay time read-out that are manufactured in two common formats: planar optodes and water-dispersible nanoparticles. Positively charged nanoparticles are demonstrated to be suitable for nanothermometry in live cells and multicellular spheroids. Negatively charged nanoparticles represent advanced analytical tools for imaging temperature gradients in samples of small volumes such as microfluidic devices.
Keywords
Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, phosphorescence lifetime imaging, optical sensors, nanothermometry, nanoparticles, microfluidics, imaging

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MLA
Russegger, Andreas, et al. “Bright and Photostable TADF‐emitting Zirconium(IV) Pyridinedipyrrolide Complexes : Efficient Dyes for Decay Time‐based Temperature Sensing and Imaging.” ADVANCED OPTICAL MATERIALS, vol. 11, no. 9, 2023, doi:10.1002/adom.202202720.
APA
Russegger, A., Debruyne, A., Berrio, D. C., Fuchs, S., Marzi, J., Schenke‐Layland, K., … Borisov, S. M. (2023). Bright and photostable TADF‐emitting zirconium(IV) pyridinedipyrrolide complexes : efficient dyes for decay time‐based temperature sensing and imaging. ADVANCED OPTICAL MATERIALS, 11(9). https://doi.org/10.1002/adom.202202720
Chicago author-date
Russegger, Andreas, Angela Debruyne, Daniel Carvajal Berrio, Stefanie Fuchs, Julia Marzi, Katja Schenke‐Layland, Ruslan Dmitriev, and Sergey M. Borisov. 2023. “Bright and Photostable TADF‐emitting Zirconium(IV) Pyridinedipyrrolide Complexes : Efficient Dyes for Decay Time‐based Temperature Sensing and Imaging.” ADVANCED OPTICAL MATERIALS 11 (9). https://doi.org/10.1002/adom.202202720.
Chicago author-date (all authors)
Russegger, Andreas, Angela Debruyne, Daniel Carvajal Berrio, Stefanie Fuchs, Julia Marzi, Katja Schenke‐Layland, Ruslan Dmitriev, and Sergey M. Borisov. 2023. “Bright and Photostable TADF‐emitting Zirconium(IV) Pyridinedipyrrolide Complexes : Efficient Dyes for Decay Time‐based Temperature Sensing and Imaging.” ADVANCED OPTICAL MATERIALS 11 (9). doi:10.1002/adom.202202720.
Vancouver
1.
Russegger A, Debruyne A, Berrio DC, Fuchs S, Marzi J, Schenke‐Layland K, et al. Bright and photostable TADF‐emitting zirconium(IV) pyridinedipyrrolide complexes : efficient dyes for decay time‐based temperature sensing and imaging. ADVANCED OPTICAL MATERIALS. 2023;11(9).
IEEE
[1]
A. Russegger et al., “Bright and photostable TADF‐emitting zirconium(IV) pyridinedipyrrolide complexes : efficient dyes for decay time‐based temperature sensing and imaging,” ADVANCED OPTICAL MATERIALS, vol. 11, no. 9, 2023.
@article{01GSQKCM7GHF8PYNFDGSW360DB,
  abstract     = {{Luminescence thermometry represents a technique of choice for measurements in small objects and imaging of temperature distribution. However, most state-of-the-art luminescent probes are limited in spectral characteristics, brightness, photostability, and sensitivity. Molecular thermometers of the new generation utilizing air and moisture-stable zirconium(IV) pyridinedipyrrolide complexes can address all these limitations. The dyes emit pure thermally activated delayed fluorescence without any prompt fluorescence and show a unique combination of attractive features: a) visible light excitation and emission in the orange/red region, b) high luminescence brightness (quantum yields approximate to 0.5 in toluene and 0.8-1.0 in polystyrene matrix), c) excellent photostability, d) suitability for two-photon excitation and e) mono-exponential decay on the order of tens to hundreds of microseconds with strongly temperature-dependent lifetimes (between -2.5 and -2.9% K-1 in polystyrene at 25 degrees C). Immobilization in gas-blocking polymers yields sensing materials for self-referenced decay time read-out that are manufactured in two common formats: planar optodes and water-dispersible nanoparticles. Positively charged nanoparticles are demonstrated to be suitable for nanothermometry in live cells and multicellular spheroids. Negatively charged nanoparticles represent advanced analytical tools for imaging temperature gradients in samples of small volumes such as microfluidic devices.}},
  articleno    = {{2202720}},
  author       = {{Russegger, Andreas and Debruyne, Angela and Berrio, Daniel Carvajal and Fuchs, Stefanie and Marzi, Julia and Schenke‐Layland, Katja and Dmitriev, Ruslan and Borisov, Sergey M.}},
  issn         = {{2195-1071}},
  journal      = {{ADVANCED OPTICAL MATERIALS}},
  keywords     = {{Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials,phosphorescence lifetime imaging,optical sensors,nanothermometry,nanoparticles,microfluidics,imaging}},
  language     = {{eng}},
  number       = {{9}},
  pages        = {{17}},
  title        = {{Bright and photostable TADF‐emitting zirconium(IV) pyridinedipyrrolide complexes : efficient dyes for decay time‐based temperature sensing and imaging}},
  url          = {{http://doi.org/10.1002/adom.202202720}},
  volume       = {{11}},
  year         = {{2023}},
}
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