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Fig. 3 | Nanoscale Research Letters

Fig. 3

From: Enhanced Stability of Gold Magnetic Nanoparticles with Poly(4-styrenesulfonic acid-co-maleic acid): Tailored Optical Properties for Protein Detection

Fig. 3

a The SPR spectra of GoldMag in borax/borate buffer (0.02 mol/L) with different pH values ranging from 6.0 to 9.0. b The SPR spectra of PSS-MA-GoldMag in borax/borate buffer (0.02 mol/L) with different pH values ranging from 6.0 to 9.0. c The SPR spectra of GoldMag suspended in borax/borate buffer (0.02 mol/L, pH 7.4), PB buffer (0.2 mol/L, pH 7.4) and in a electrolyte solution. d The SPR spectra of PSS-MA-GoldMag suspended in borax/borate buffer (0.02 mol/L, pH 7.4), PB buffer (0.2 mol/L, pH 7.4) and in electrolyte solution. e The change of zeta potential of GoldMag suspended in borax/borate buffer (0.02 mol/L) with different pH values ranging from 6.0 to 9.0. f The change of zeta potential of GoldMag suspended in borax/borate buffer (0.02 mol/L, pH 7.4), PB buffer (0.2 mol/L, pH 7.4), and in electrolyte solution

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