Volume 1, Issue 6 pp. 478-493
Full Article

In vitro and in vivo imaging of xenobiotic transport in human skin and in the rat liver

Michael S. Roberts

Corresponding Author

Michael S. Roberts

Therapeutics Research Unit, Department of Medicine, University of Queensland, Princess Alexandra Hospital, Woolloongabba, QLD 4102, Australia

Phone: +61732402546 Fax: +61732405806Search for more papers by this author
Matthew J. Roberts

Matthew J. Roberts

Therapeutics Research Unit, Department of Medicine, University of Queensland, Princess Alexandra Hospital, Woolloongabba, QLD 4102, Australia

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Thomas A. Robertson

Thomas A. Robertson

Therapeutics Research Unit, Department of Medicine, University of Queensland, Princess Alexandra Hospital, Woolloongabba, QLD 4102, Australia

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Washington Sanchez

Washington Sanchez

Therapeutics Research Unit, Department of Medicine, University of Queensland, Princess Alexandra Hospital, Woolloongabba, QLD 4102, Australia

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Camilla Thörling

Camilla Thörling

Therapeutics Research Unit, Department of Medicine, University of Queensland, Princess Alexandra Hospital, Woolloongabba, QLD 4102, Australia

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Yuhong Zou

Yuhong Zou

Therapeutics Research Unit, Department of Medicine, University of Queensland, Princess Alexandra Hospital, Woolloongabba, QLD 4102, Australia

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Xin Zhao

Xin Zhao

Physics, Macquarie University, Sydney, NSW 2109, Australia

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Wolfgang Becker

Wolfgang Becker

Becker & Hickl GmbH, Nahmitzer Damm 30, 12277 Berlin, Germany

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Andrei V. Zvyagin

Andrei V. Zvyagin

Physics, Macquarie University, Sydney, NSW 2109, Australia

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First published: 05 December 2008
Citations: 90

Abstracted from a lecture presented at FLIM2008, Saarbrucken, Germany, June 2008

Abstract

Multiphoton tomography was used to examine xenobiotic transport in vivo. We used the photochemical properties of zinc oxide and fluorescein and multiphoton tomography to study their transport in the skin and in the rat liver in vivo. Zinc oxide nanoparticles were visualised in human skin using the photoluminescence properties of zinc oxide and either a selective emission wavelength band pass filter or a filter with fluorescence lifetime imaging (FLIM). Zinc oxide nanoparticles (30 nm) did not penetrate into human skin in vitro and in vivo and this was validated by scanning electron microscopy with X-ray photoelectron spectroscopy. Fluorescein was measured in the liver using FLIM. Fluorescein is rapidly extracted from the blood into the liver cells and then transported into the bile. It is suggested that multiphoton tomography may be of particular use in defining in vivo 4D (in both space and time) pharmacokinetics. (© 2008 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)

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