(a)
(b)
(c)
(d)
Figure 3: Porous cellulose beads (CBs) of different mean sizes derived from printed paper wastes: (a) As prepared; S1, S2, and S3 (left to right), (b) curcumin-loaded CBs; S1, S2, and S3 (left to right); SEM micrographs of cross sectional view for (c) as prepared CBs (S1), and (d) curcumin-loaded CBs (S1).