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Straightforward FRAP for quantitative diffusion measurements with a laser scanning microscope
RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SIK – Institutet för livsmedel och bioteknik.
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2010 (engelsk)Inngår i: Optics Express, E-ISSN 1094-4087, Vol. 18, nr 22, s. 22886-22905Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Confocal or multi-photon laser scanning microscopes are convenient tools to perform FRAP diffusion measurements. Despite its popularity, accurate FRAP remains often challenging since current methods are either limited to relatively large bleach regions or can be complicated for non-specialists. In order to bring reliable quantitative FRAP measurements to the broad community of laser scanning microscopy users, here we have revised FRAP theory and present a new pixel based FRAP method relying on the photo bleaching of rectangular regions of any size and aspect ratio. The method allows for fast and straightforward quantitative diffusion measurements due to a closed-form expression for the recovery process utilizing all available spatial and temporal data. After a detailed validation, its versatility is demonstrated by diffusion studies in heterogeneous biopolymer mixtures. © 2010 Optical Society of America.

sted, utgiver, år, opplag, sider
2010. Vol. 18, nr 22, s. 22886-22905
Emneord [en]
Food Engineering
Emneord [sv]
Livsmedelsteknik
HSV kategori
Identifikatorer
URN: urn:nbn:se:ri:diva-9317DOI: 10.1364/OE.18.022886OAI: oai:DiVA.org:ri-9317DiVA, id: diva2:967192
Tilgjengelig fra: 2016-09-08 Laget: 2016-09-08 Sist oppdatert: 2023-05-26bibliografisk kontrollert

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Loren, Niklas

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