Calcium Alginate-Neusilin US2 Nanocomposite Microbeads for Oral Sustained Drug Delivery of Poor Water Soluble Drug Aceclofenac Sodium

Figure 1

FT-IR spectra: (a) pure aceclofenac sodium, (b) sodium alginate, (c) Neusilin US2, (d) physical mixture of aceclofenac sodium and sodium alginate, and (e) physical mixture of aceclofenac sodium and Neusilin US2.

(a)

(b)

(c)

(d)

(e)