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Figure 1 | Nanoscale Research Letters

Figure 1

From: Sensitive and molecular size-selective detection of proteins using a chip-based and heteroliganded gold nanoisland by localized surface plasmon resonance spectroscopy

Figure 1

(A) Schematic view of a heteroliganded gold nanoisland for the sensitive and molecular size-selective detection of a protein. The enlarged schematic diagram shows the surface morphology of a heteroliganded gold nanoisland and the binding principle of a protein in the presence of its aggregates. (B) (a) The detection method via chip-based localized surface plasmon resonance spectroscopy. (b) The before (black) and after (red) absorption spectra of the gold nanoislands after a 1-h exposure to a 0.1 mg/ml solution of SOD1.

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