liu.seSearch for publications in DiVA
Change search
ReferencesLink to record
Permanent link

Direct link
Electron irradiation effects on nanocrystal quantum dots used in bio-sensing applications
Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology.
Show others and affiliations
2004 (English)In: IEEE Transactions on Nuclear Science, ISSN 0018-9499, Vol. 51, no 6, 3186-3192 p.Article in journal (Refereed) Published
Abstract [en]

Effects of low energy electron irradiation (5-30 keV) on some of the optical properties of CdSe nanocrystals are examined. Degradation in luminescence intensities are measured and compared for inorganic nanocrystals coated in trioctylphosphine oxide (TOPO) and biologically compatible CdSe nanocrystals coated in mercaptoacetic acid (MAA), as well as CdSe-MAA nanocrystals conjugated with the protein Streptavidin. Electron beam effects are investigated using the technique of cathodolu-minescence, which is seen to induce significant degradation in nanocrystal related fluorescence in all nanocrystals. Varying beam energy and sample temperatures showed faster degradation at cryogenic temperatures and a higher susceptibility to low beam energies in protein conjugated nanocrystals.

Place, publisher, year, edition, pages
2004. Vol. 51, no 6, 3186-3192 p.
Keyword [en]
biophysics, cathodoluminescence, electron-beam applications, nanotechnology
National Category
Engineering and Technology
URN: urn:nbn:se:liu:diva-46116DOI: 10.1109/TNS.2004.839197OAI: diva2:267012
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2011-01-12

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Paskova, TanjaMonemar, Bo
By organisation
The Institute of TechnologyDepartment of Physics, Chemistry and BiologyMaterials Science
In the same journal
IEEE Transactions on Nuclear Science
Engineering and Technology

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 25 hits
ReferencesLink to record
Permanent link

Direct link