Captopril merupakan obat antihipertensi yang memiliki waktu paruh biologis pendek dan bioavailabilitas rendah. Suatu matriks hidrogel berbasis kitosan termodifikasi interpenetrating polymer network (IPN) telah berhasil disintesis dipelajari enkapsulasinya terhadap captopril. Penelitian ini dilakukan untuk mengukur efisiensi enkapsulasi captopril in situ loading dengan memanfaatkan teknik ultras...

The purpose of our study is to develop a controlled Naproxen releasing system for anti-inflammatory, analgesic treatments. Interpenetrating polymer network (IPN) type hydrogels were obtained by using natural polymers alginate and gelatin. prepared combining Alginate Gelatin in the presence Glutaraldehyde as crosslinker Montmorillonite (MMT) clay was used nano-dimensioned layered dopant. charact...

Trilayer polypyrrole microactuators that can operate in air have previously been developed. They consist of two outer layers of the electroactive polymer polypyrrole (PPy) and one inner layer of a porous poly(vinylidene flouride) (PVDF) membrane containing a liquid electrolyte. The two outer layers of PPy are each connected with gold electrodes and separated by the porous PVDF membrane. This mi...

OBJECTIVE The purpose of this study was to evaluate the microtensile strength of composite bonded to interpenetrating polymer network (IPN) or cross-linked glass fibre posts and to observe the failure modes by using light and scanning electron microscopy. METHODS Twenty posts containing IPN resin matrix and 20 posts containing cross-linked epoxy polymer matrix were used for testing. One half ...

Responsive hydrogels functionalized with molecular recognition agents can undergo large volume changes upon interactions with specific chemical species. These responsive hydrogels can function as chemical sensing materials if the hydrogel volumes are monitored by using devices such as photonic crystals (PhC). An important criterion of merit is the responsiveness of these sensing hydrogels. Gene...