Fig. 1

The FTIR-spectra are shown here. The spectra obtained after scanning from 4000 to 400 cm⁻¹ and maintaining the resolution at 4 cm⁻¹ show the presence of prominent functional groups A FTIR—spectra of pure gliclazide B FTIR—spectra of sodium alginate C FTIR—spectra of starch of Musa balbisiana species D FTIR—spectra of drug-loaded microsphere E overlap FTIR—spectra of pure drug, starch and sodium alginate