• norsk
    • English
  • English 
    • norsk
    • English
  • Login
View Item 
  •   Home
  • Øvrige samlinger
  • Publikasjoner fra CRIStin - NTNU
  • View Item
  •   Home
  • Øvrige samlinger
  • Publikasjoner fra CRIStin - NTNU
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Labeling nanoparticles: Dye leakage and altered cellular uptake

Snipstad, Sofie; Hak, Sjoerd; Baghirov, Habib; Sulheim, Einar; Mørch, Ýrr Asbjørg; Lelu, Sylvie; von Haartman, Eva; Bäck, Marcus; Nilsson, Peter R; Klymchenko, Andrey S; Davies, Ruth Catharina de Lange; Åslund, Andreas
Journal article
Submitted version
Thumbnail
View/Open
Snipstad+et+al_manuscript.pdf (9.637Mb)
URI
http://hdl.handle.net/11250/2461974
Date
2016
Metadata
Show full item record
Collections
  • Institutt for fysikk [1759]
  • Institutt for sirkulasjon og bildediagnostikk [1013]
  • Publikasjoner fra CRIStin - NTNU [19849]
Original version
10.1002/cyto.a.22853
Abstract
In vitro and in vivo behavior of nanoparticles (NPs) is often studied by tracing the NPs with fluorescent dyes. This requires stable incorporation of dyes within the NPs, as dye leakage may give a wrong interpretation of NP biodistribution, cellular uptake, and intracellular distribution. Furthermore, NP labeling with trace amounts of dye should not alter NP properties such as interactions with cells or tissues. To allow for versatile NP studies with a variety of fluorescence-based assays, labeling of NPs with different dyes is desirable. Hence, when new dyes are introduced, simple and fast screening methods to assess labeling stability and NP–cell interactions are needed. For this purpose, we have used a previously described generic flow cytometry assay; incubation of cells with NPs at 4 and 37°C. Cell–NP interaction is confirmed by cellular fluorescence after 37°C incubation, and NP-dye retention is confirmed when no cellular fluorescence is detected at 4°C. Three different NP-platforms labeled with six different dyes were screened, and a great variability in dye retention was observed. Surprisingly, incorporation of trace amounts of certain dyes was found to reduce or even inhibit NP uptake. This work highlights the importance of thoroughly evaluating every dye–NP combination before pursuing NP-based applications. © 2016 International Society for Advancement of Cytometry
Publisher
Wiley
Journal
Cytometry Part A

Contact Us | Send Feedback

Privacy policy
DSpace software copyright © 2002-2019  DuraSpace

Service from  Unit
 

 

Browse

ArchiveCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsDocument TypesJournalsThis CollectionBy Issue DateAuthorsTitlesSubjectsDocument TypesJournals

My Account

Login

Statistics

View Usage Statistics

Contact Us | Send Feedback

Privacy policy
DSpace software copyright © 2002-2019  DuraSpace

Service from  Unit