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Herranz, F.* ; Schmidt-Weber, C.B. ; Shamji, M.H.* ; Narkus, A.* ; Ruiz-Cabello, J.* ; Vilar, R.*

Superparamagnetic iron oxide nanoparticles conjugated to a grass pollen allergen and an optical probe.

Contrast Media Mol. Imaging 7, 435-439 (2012)
DOI PMC
Open Access Green as soon as Postprint is submitted to ZB.
In this study we report the development of a bioconjugate between superparamagnetic iron oxide nanoparticles and Phl p5a (one of the major allergens from grass pollen). The bioconjugate also contains an optical probe (Alexa647) conjugated to the nanoparticle via biotinstreptavidin association. We show that this conjugate has a range of features that makes it a very promising candidate to image the localization of this allergen in vivo: (a) upon conjugation to the iron oxide nanoparticles, the allergen retains its ability to interact with IgE antibodies; (b) the magnetic properties of the iron oxide core of this bioconjugate are suitable for MR imaging; and (c) Alexa647 fluorophore retains its emission properties once attached to the iron oxide nanoparticles, yielding a dual modality MRI-optical probe.
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Publication type Article: Journal article
Document type Scientific Article
Corresponding Author
Keywords Biomedical Applications; Magnetic Nanoparticles; Functionalization; Iron Oxide Nanoparticles; Mri; Allergen; Optical Probe; BIOMEDICAL APPLICATIONS; MAGNETIC NANOPARTICLES; FUNCTIONALIZATION
ISSN (print) / ISBN 1555-4309
e-ISSN 1555-4317
Quellenangaben Volume: 7, Issue: 4, Pages: 435-439 Article Number: , Supplement: ,
Publisher Wiley
Non-patent literature Publications
Reviewing status Peer reviewed