
Fig. 1.
Camel and bovine gelatin extraction process: (a) bone pieces, (b) demineralized and partially hydrolyzed collagen, (c) gelatin extraction, (d) filtered gelatin, (e) evaporation of solvent, (f) dried gelatin

Fig. 2.
Fish gelatin extraction process: (a) bone pieces, (b) demineralized and partially hydrolyzed collagen, (c) gelatin extraction, (d) filtered gelatin, (e) evaporation of solvent, and (f) dried gelatin powder

Fig. 3.
Poured gelatin/AgNPs mixture (a) and peeled off film (b)

Fig. 4.
SEM micrograph of fish gelatin mixed with 1.25 mM silver nanoparticles

Fig. 5.
FTIR spectrum of extracted fish gelatin

Fig. 6.
Optical absorption spectra of extracted fish gelatin/AgNPs

Fig. 7.
X-ray absorption of a free-standing camel (a), fish (b), and bovine (c) gelatin/AgNPs

Fig. 8.
Attenuation coefficient versus beam energy of a free-standing bovine gelatin/AgNPs