Skip to main content
Fig. 3 | Nanoscale Research Letters

Fig. 3

From: Red Spectral Shift in Sensitive Colorimetric Detection of Tuberculosis by ESAT-6 Antigen-Antibody Complex: a New Strategy with Gold Nanoparticle

Fig. 3

ESAT-6 antibody optimization and stability. Different concentrations of anti-ESAT-6 antibody were tested using 800 mM NaCl. a Aggregation or dispersion of GNP with the anti-ESAT-6 antibody (0 to 500 nM); Arrow indicates the transition region for the optimal antibody concentration. b Stability of 60 nM of antibody complexed GNP with different NaCl concentrations (0.012 to 1000 mM). c Spectra for different complexes. Peaks were indicated with the respective colored spheres

Back to article page