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Preparation of amyloid-like fibrils containing magnetic iron oxide nanoparticles: effect of protein aggregation on proton relaxivity.

Abstract：

:A method to prepare amyloid-like fibrils functionalized with magnetic nanoparticles has been developed. The amyloid-like fibrils are prepared in a two step procedure, where insulin and magnetic nanoparticles are mixed simply by grinding in the solid state, resulting in a water soluble hybrid material. When the hybrid material is heated in aqueous acid, the insulin/nanoparticle hybrid material self assembles to form amyloid-like fibrils incorporating the magnetic nanoparticles. This results in magnetically labeled amyloid-like fibrils which has been characterized by Transmission Electron Microscopy (TEM) and electron tomography. The influence of the aggregation process on proton relaxivity is investigated. The prepared materials have potential uses in a range of bio-imaging applications.

journal_name

Biochem Biophys Res Commun

journal_title

Biochemical and biophysical research communications

authors

Andersson BV,Skoglund C,Uvdal K,Solin N

doi

10.1016/j.bbrc.2012.02.077

subject

Has Abstract

pub_date

2012-03-23 00:00:00

pages

682-6

issue

4

eissn

0006-291X

issn

1090-2104

pii

S0006-291X(12)00310-5

journal_volume

419

pub_type

杂志文章

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