title: Preparation and characterization of N-heterocyclic chitosan derivative based gels for biomedical applications.
abstract: The novel N-heterocyclic chitosan aerogel derivatives were prepared by reacting 79% deacetylated chitosan separately with 4-pyridinecarboxaldehyde and 2,6-pyridinedicarboxaldehyde followed by subsequent solvent exchange into acetone, filteration and lyophilization. The identity of the Schiff bases was confirmed by UV-vis absorption spectroscopy and Fourier transform infrared (FTIR) spectroscopy. The N-heterocyclic chitosan derivatives were evaluated by X-ray diffraction (XRD), thermo-gravimetric analysis (TGA), differential scanning calorimetry (DSC), scanning electron microscopy (SEM), rheological studies and biological activity. Overall, the N-heterocyclic chitosan derivative based gels open new perspectives in biomedical applications.
authors: Department of Chemistry, Motilal Nehru National Institute of Technology, Allahabad 21100, India.
authors: Santosh
authors: S
authors: Kumar
authors: Joydeep
authors: J
authors: Dutta
authors: P K
authors: PK
authors: Dutta
mesh_terms: D000890:Anti-Infective Agents / Q000138:chemical synthesis / Q000737:chemistry* / Q000494:pharmacology*; D001419:Bacteria / Q000187:drug effects; D002152:Calorimetry, Differential Scanning; D048271:Chitosan / Q000138:chemical synthesis / Q000737:chemistry* / Q000494:pharmacology*; D005658:Fungi / Q000187:drug effects; D005782:Gels; D055772:Green Chemistry Technology; D006571:Heterocyclic Compounds / Q000737:chemistry*; D008826:Microbial Sensitivity Tests; D008855:Microscopy, Electron, Scanning; D009584:Nitrogen / Q000737:chemistry*; D012212:Rheology; D013056:Spectrophotometry, Ultraviolet; D017550:Spectroscopy, Fourier Transform Infrared; D013818:Thermogravimetry; D014961:X-Ray Diffraction
chemical_list: D000890:Anti-Infective Agents; D005782:Gels; D006571:Heterocyclic Compounds; D048271:Chitosan; D009584:Nitrogen