Polymethyl mehtacrylates polymers such as Eudragit RL100 have been used in preparation of matrix ... more Polymethyl mehtacrylates polymers such as Eudragit RL100 have been used in preparation of matrix type oral sustained release, coating and in microencapsulation of drug. Embedding of drug within an insoluble matrix is convenient way of controlling the drug release.The prepared microspheres by emulsion solvent evaporation technique was simple and reproducible, possessed good sphericity, smooth surface morphology, uniform and narrow size distribution (170-200 μm), when analyzed by scanning electron microscopy, and optical microscopy. Method of preparation has influenced the particle size and drug loading efficiency. The carrier ethyl cellulose and Eudragit RL100 are easily available and compatible. Drug-polymer compatibility was confirmed by Fourier transform infrared spectroscopy and DSC and X-ray diffraction studies revealed that the drug was dispersed inside the microspheres in the form of an insoluble matrix. The formation of microspheres was affected by glass transition temperatur...
Polymethyl mehtacrylates polymers such as Eudragit RL100 have been used in preparation of matrix ... more Polymethyl mehtacrylates polymers such as Eudragit RL100 have been used in preparation of matrix type oral sustained release, coating and in microencapsulation of drug. Embedding of drug within an insoluble matrix is convenient way of controlling the drug release.The prepared microspheres by emulsion solvent evaporation technique was simple and reproducible, possessed good sphericity, smooth surface morphology, uniform and narrow size distribution (170-200 μm), when analyzed by scanning electron microscopy, and optical microscopy. Method of preparation has influenced the particle size and drug loading efficiency. The carrier ethyl cellulose and Eudragit RL100 are easily available and compatible. Drug-polymer compatibility was confirmed by Fourier transform infrared spectroscopy and DSC and X-ray diffraction studies revealed that the drug was dispersed inside the microspheres in the form of an insoluble matrix. The formation of microspheres was affected by glass transition temperatur...
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