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Application Of Electrostatic Dry Powder Coating Technology On Hard Capsules, Zhehao Jing
Application Of Electrostatic Dry Powder Coating Technology On Hard Capsules, Zhehao Jing
Electronic Thesis and Dissertation Repository
This project applied electrostatic dry powder coating technology on hard gelatin and HPMC capsules using Eudragit® RS/RL and Eudragit® L 100-55 to achieve sustained release and enteric release respectively. Dry powder coating eliminated the difficulties associated with conventional liquid coating processes such as poor adhesion and stickiness for capsules. Additionally, through optimizing sprayed plasticizer volume, the coating powders deposited on the capsules could be efficiently maximized. The weight gain of coating and the formulation of coating materials were important parameters which controlled the release profiles of coated capsules. The release mechanism of coated capsules was quite different from …
Development Of A Novel Tio2-Polymeric Photocatalyst For Water Purification Both Under Uv And Solar Illuminations, Debjani Mukherjee
Development Of A Novel Tio2-Polymeric Photocatalyst For Water Purification Both Under Uv And Solar Illuminations, Debjani Mukherjee
Electronic Thesis and Dissertation Repository
Comprising about 70% of the Earth’s surface, water is undoubtedly the most precious natural resource. According to the W.H.O, around 3.5 million people are dying every year from different water related diseases. Different kinds of dyes and pharmaceutical products have been detected in drinking water, all over the world. These organic compounds being non removable by traditional water purification processes, made advanced oxidation processes come into existence. Among all kind of advanced oxidation processes, photocatalytic oxidation is the most promising one. The photocatalytic process is based on aqueous phase hydroxyl radical chemistry and couples low energy UV light with semiconductors …