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1 article(s) from Spoto, Giuseppe

Streptavidin-coated gold nanoparticles: critical role of oligonucleotides on stability and fractal aggregation

Roberta D'Agata,
Pasquale Palladino and
Giuseppe Spoto

Beilstein J. Nanotechnol. 2017, 8, 1–11, doi:10.3762/bjnano.8.1

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Figure 1: TEM micrograph and dimensional dispersion histogram (inset) of bare AuNPs.

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Figure 2: Absorbance spectra of bare AuNPs and SA coated nanoparticles before (AuNP-SA) and after (AuNP-SA-Bi...

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Figure 3: TEM micrograph and dimensional dispersion histogram (inset) of AuNP-SA-BiotinDNA.

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Figure 4: Absorbance spectra (400–700 nm) of AuNP-SA-BiotinDNA (A) and AuNP-SA (B) titred with free-biotin so...

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Figure 5: TEM micrographs of AuNP-SA-BiotinDNA after BiotinDNA displacement by free biotin (1.28 mM). TEM mic...

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Figure 6: SPR data showing the competitive displacement of BiotinDNA by free biotin. (A) Streptavidin covalen...

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Figure 7: Normalized extinction spectra (400–700 nm) of AuNPs after the non-specific adsorption of BiotinDNA ...

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Figure 8: BiotinDNA displacement from AuNP-SA-BiotinDNA (●) and SA-BiotinDNA immobilized on SPR gold sensor c...

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Figure 9: Extinction spectra (400–800 nm) of AuNP-SA in the presence of free biotin (1.28 mM) titrated with u...

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Full Research Paper

Published 02 Jan 2017

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