conclusions diclofenac-loaded nanoparticles based on properties of chitosan gelation could delay the release of drugs in the stomach and be further evaluated for the enteric delivery of diclofenac. objectives the aim of this study was to prepare and evaluate diclofenac-loaded chitosan nanoparticles based on the ionotropic gelation method. materials and methods chitosan (cs) nanoparticles contai...

Chitosan with excellent biodegradable and biocompatible characteristics has received attention as an oral drug delivery vehicle for controlled-release formulations. In this study an enteric-coated capsule containing theophylline-chitosan beads based on 23 factorial designs was prepared as a colon drug delivery system. The theophylline-chitosan gel beads were formulated by adding the drug-contai...

Tripolyphosphate conversion coatings are promising due to the active type of anti-corrosion protection. However, be introduced into production, it is necessary optimize technology tripolyphosphate coating deposition. Coatings were deposited samples st05kp cold-rolled sheet steel (analogs G10050, G10060, 1CR, 2CR, D6-2, DG-2) from aqueous solutions sodium (4 %, 6 10 12 14 %) at t=80 °C by dip an...

In this work, we synthesized a chitosan-activated carbon composite (Cs–C) using sodium tripolyphosphate (STTP) as crosslinker and it was evaluated for the adsorptive removal of RBBR dye showing excellent capacity 540.3 mg g −1 .

chitosan with excellent biodegradable and biocompatible characteristics has received attention as an oral drug delivery vehicle for controlled-release formulations. in this study an enteric-coated capsule containing theophylline-chitosan beads based on 23 factorial designs was prepared as a colon drug delivery system. the theophylline-chitosan gel beads were formulated by adding the drug-contai...

Chitosan with excellent biodegradable and biocompatible characteristics has received attention as an oral drug delivery vehicle for controlled-release formulations. In this study an enteric-coated capsule containing theophylline-chitosan beads based on 23 factorial designs was prepared as a colon drug delivery system. The theophylline-chitosan gel beads were formulated by adding the drug-contai...

It was the aim of this study to develop a zeta potential changing drug delivery system by decorating lipid-based nanocarriers with polycationic cell penetrating peptide (CPP) and subsequently masking these cationic substructures polyphosphates. In order anchor CPP poly-l-lysine (PLL) on surface oily droplets an o/w nanoemulsion, stearic acid covalently attached peptide. The resulting CPP-decora...

The various nucleosides and nucleotides used in this study were commercial preparations. This was also true for inorganic pyrophosphate, tripolyphosphate, and adenosine tetraphosphate. ATP was a crystalline preparation; UTP was further purified by ion exchange chromatography. 1-Pyrophosphoryl ribose 5-phosphate was isolated by the procedure of Kornberg, Lieberman, and Simms (I) to whom we are i...