title: Formulation development of smart gel periodontal drug delivery system for local delivery of chemotherapeutic agents with application of experimental design.
abstract: Smart gel periodontal drug delivery systems (SGPDDS) containing gellan gum (0.1-0.8% w/v), lutrol F127 (14, 16, and 18% w/v), and ornidazole (1% w/v) were designed for the treatment of periodontal diseases. Each formulation was characterized in terms of in vitro gelling capacity, viscosity, rheology, content uniformity, in vitro drug release, and syringeability. In vitro gelation time and the nature of the gel formed in simulated saliva for prepared formulations showed polymeric concentration dependency. Drug release data from all formulations was fitted to different kinetic models and the Korsemeyer-Peppas model was the best fit model. Drug release was significantly decreased as the concentration of each polymer component was increased. Increasing the concentration of each polymeric component significantly increased viscosity, syringeability, and time for 50%, 70%, and 90% drug release. In conclusion, the formulations described offer a wide range of physical and drug release characteristics. The formulation containing 0.8% w/v of gellan gum and 16% w/v of lutrol F127 exhibited superior physical characteristics.
authors.affiliation: Department of Pharmaceutical Sciences, Saurashtra University, Rajkot-360 005, Gujarat, India. mrdabhi@gmail.com
authors.forename: Mahesh R
authors.initials: MR
authors.lastname: Dabhi
authors.forename: Stavan A
authors.initials: SA
authors.lastname: Nagori
authors.forename: Mukesh C
authors.initials: MC
authors.lastname: Gohel
authors.forename: Rajesh K
authors.initials: RK
authors.lastname: Parikh
authors.forename: Navin R
authors.initials: NR
authors.lastname: Sheth
mesh_terms: D000891:Anti-Infective Agents, Local / Q000737:chemistry* / Q000627:therapeutic use; D002626:Chemistry, Pharmaceutical; D003692:Delayed-Action Preparations; D004338:Drug Combinations; D016503:Drug Delivery Systems; D004355:Drug Stability; D005782:Gels / Q000737:chemistry*; D007700:Kinetics; D009950:Ornidazole / Q000737:chemistry* / Q000627:therapeutic use; D010510:Periodontal Diseases / Q000188:drug therapy; D011095:Polyethylenes / Q000737:chemistry*; D011126:Polypropylenes / Q000737:chemistry*; D011135:Polysaccharides, Bacterial / Q000737:chemistry*; D012212:Rheology; D013696:Temperature; D014783:Viscosity
chemical_list: D000891:Anti-Infective Agents, Local; D003692:Delayed-Action Preparations; D004338:Drug Combinations; D005782:Gels; C510078:Lutrol F 127; D011095:Polyethylenes; D011126:Polypropylenes; D011135:Polysaccharides, Bacterial; D009950:Ornidazole; C048288:gellan gum