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Optical properties of mouse brain tissue after optical clearing with FocusClear™
University of California, Irvine, USA.
University of California, Irvine, USA.
University of California, Irvine, USA.
University of California, Irvine, USA.
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2015 (Engelska)Ingår i: Journal of Biomedical Optics, ISSN 1083-3668, E-ISSN 1560-2281, Vol. 20, nr 9, artikel-id 095010Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Fluorescence microscopy is commonly used to investigate disease progression in biological tissues. Biological tissues, however, are strongly scattering in the visible wavelengths, limiting the application of fluorescence microscopy to superficial (<200  μm) regions. Optical clearing, which involves incubation of the tissue in a chemical bath, reduces the optical scattering in tissue, resulting in increased tissue transparency and optical imaging depth. The goal of this study was to determine the time- and wavelength-resolved dynamics of the optical scattering properties of rodent brain after optical clearing with FocusClear™. Light transmittance and reflectance of 1-mm mouse brain sections were measured using an integrating sphere before and after optical clearing and the inverse adding doubling algorithm used to determine tissue optical scattering. The degree of optical clearing was quantified by calculating the optical clearing potential (OCP), and the effects of differing OCP were demonstrated using the optical histology method, which combines tissue optical clearing with optical imaging to visualize the microvasculature. We observed increased tissue transparency with longer optical clearing time and an analogous increase in OCP. Furthermore, OCP did not vary substantially between 400 and 1000 nm for increasing optical clearing durations, suggesting that optical histology can improve ex vivo visualization of several fluorescent probes.

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SPIE - International Society for Optical Engineering, 2015. Vol. 20, nr 9, artikel-id 095010
Nationell ämneskategori
Biofysik
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URN: urn:nbn:se:liu:diva-152318DOI: 10.1117/1.jbo.20.9.095010OAI: oai:DiVA.org:liu-152318DiVA, id: diva2:1265327
Tillgänglig från: 2018-11-22 Skapad: 2018-11-22 Senast uppdaterad: 2019-03-22Bibliografiskt granskad

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