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Streptavidin-functionalized Fe3O4@SiO2 composite (Fe3O4@SiO2-SA)
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Cat. No.: X26-04-ZQ008

Streptavidin-functionalized Fe3O4@SiO2 composite (Fe3O4@SiO2-SA)

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Synonym: SA-Fe3O4@SiO2; Streptavidin-conjugated silica-coated magnetite; Fe3O4@SiO2-SA particles

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Product Size
100 mg; 250 mg; 500 mg; 1 g; 5 g
Price
Datasheet
Datasheet
MSDS
MSDS
Properties
Description
Streptavidin-functionalized Fe3O4@SiO2 composite (Fe3O4@SiO2-SA) consists of silica-coated magnetic nanoparticles onto which the protein streptavidin has been conjugated. The silica shell provides chemical stability and reduced non-specific binding, while the streptavidin layer offers an exceptionally high affinity for biotinylated molecules (Kd 10-15 M).
Source
Custom synthesis
Partical Size
30 nm, 50 nm, 80 nm, 100 nm, 200 nm
Functional Group
Streptavidin
Form
Solid or powder
Purity
≥95%
Impurities
No visible impurities to the naked eye.
Identity
HPLC/MS/NMR
Applications
Streptavidin-functionalized Fe3O4@SiO2 composite (Fe3O4@SiO2-SA) is used for the magnetic isolation of biotinylated DNA, RNA, or proteins, the development of automated immunoassays, and the capture of biotin-labeled cells in microfluidic devices.
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