In this work, a series of hydrogel nanocomposites were prepared by grafting acrylic acid and acrylamide on gelatin in the presence of Na-montmorillonite (Na-MMT) nanoparticles. The characterizations of hydrogel nanocomposites were examined by swelling experiments, Fourier transform infrared (FT-IR) spectroscopy, X-Ray diffraction (XRD) patterns and thermogravimetric analysis (TGA). Scanning ele...

Glucose-sensitive hydrogels were prepared by the copolymerization of diethylaminoethyl methacrylate (DEAEM), poly(ethylene glycol) monomethacrylate (PEGMA) and functionalized glucose oxidase (GOD) and catalase in solution. Tetra(ethylene glycol) dimethacrylate (TEGDMA) was used as the crosslinking agent. The equilibrium and dynamic swelling properties were studied to investigate the pHsensitive...

The swelling behavior of disintegrating agents produced from microparticles of crosslinked, hydrophilic polymers was investigated as a function of time by using a swelling force measurement apparatus. The swelling force produced due to swelling of poly(acrylic acid-co-2-hydroxyethyl methacrylate) and poly(acrylic acid) was measured in various buffered solutions as a function of time and the swe...

Whey proteins can be used as hydrogels and nanoparticle systems for encapsulation and controlled delivery of bioactive compounds. Whey protein concentrate (WPC) hydrogels exhibited pH-sensitive swelling behavior with minimum swelling ratio near the isoelectric point (pI) of whey proteins ( 5.1). The controlled drug release behavior of WPC hydrogels was studied using caffeine as a model drug. Co...