ABTS-Modified Silica Nanoparticles as Laccase Mediators for Decolorization of Indigo Carmine Dye

Figure 3

(a) SEM image of SNPs; (b) SEM image of ABTS-SNPs; (c) Tube 1, SNPs, Tube 2, SNPs covalently attached to ABTS, Tube 3, after reaction of ABTS-SNPs with laccase, Tube 4, regenerated ABTS-SNPs, Tube 5, after reaction of regenerated ABTS-SNPs with laccase, and (d) FT-IR spectra of ABTS, ABTS-SNPs, and SNPs.

(a)

(b)

(c)

(d)