AIM The aim of this study was to investigate in vitro the utility of biologically compatible, nontoxic and cell-specific targetable hydrogel nanoparticles (NPs), which have Coomassie® Brilliant Blue G dye (Sigma-Aldrich, MO, USA) covalently linked into their polyacrylamide matrix, as candidates for photothermal therapy (PTT) of cancer cells. MATERIALS & METHODS Hydrogel NPs with Coomassie Bri...

The fabrication of electrically conductive hydrogels is challenging as the introduction an filler often changes mechanical hydrogel matrix properties. Here, we present approach for preparation composites with outstanding electrical conductivity at extremely low loadings (0.34 S m–1, 0.16 vol %). Exfoliated graphene and polyacrylamide are microengineered to 3D such that pathways pervade similar ...

Recently developed high-speed ionic devices require adherent laminates of stretchable and dissimilar materials, such as gels and elastomers. Adhesion between stretchable and dissimilar materials also plays important roles in medicine, stretchable electronics, and soft robots. Here we develop a method to characterize adhesion between materials capable of large, elastic deformation. We apply the ...

In the present work, a grafted polymer of polyacrylamide with gum arabica was synthesized as Gum acacia-g-polyacrylamide using microwave-assisted synthesis ceric ammonium nitrate reaction initiator. The utilized in combination sodium alginate to prepare interpenetrating network hydrogel beads effectively deliver gabapentin gastrointestinal tract. formulated microbeads showed pH-responsive relea...

BACKGROUND Polyacrylamide gels, containing a hydrogel composed of polyacrylamide and water, are used for soft tissue augmentation and contour correction. There are no reports of significant complications after injection of this material into the face. OBJECTIVE We report an inflammatory reaction after injection of polyacrylamide gels for zygomatic facial augmentation. METHODS A retrospectiv...

A hydrogel was prepared by crosslinking aqueous solutions of sulfonated polyacrylamide/chromium triacetate for use in water shut off operations. Gel swelling and the effects of salinity, injection time and flow rate on residual resistance factor (Frr) were investigated. In the presence of electrolytes, gel swelling decreased by about 80%. Results showed that oil permeability increased as inject...