title: Preparation and evaluation of high drug content particles.
abstract: To determine how to prepare high drug content particles using a Wurster fluidized bed to determine realizing the miniaturization of solid dosage forms, aspirin was selected as the model drug and granulated without any additive. In this study, the emphasis was on evaluating the key operation factors of airflow rate and atomizing flow volume. The properties of the resulting particles, such as the average diameter, particle strength, appearance, and compressibility using different airflow rates and atomizing flow volumes, were investigated. Furthermore, detailed optimization of the operation conditions was conducted by artificial neural network (ANN) analysis. The relationship between the controlling factors (powder supplied, concentration of spray liquid, the amount of consumed spray liquid, and spray rate) and the response variables (product yield, median diameter, angle of repose, and degradation of aspirin) was investigated after evaluating the airflow rate and atomizing flow volume effects. The resulting granules under optimum operation conditions showed excellent physicochemical properties such as particle size uniformity, flowability, and compressibility.
authors.affiliation: Shenyang Pharmaceutical University, Shenhe District, Shenyang, China.
authors.forename: Xiaoyan
authors.initials: X
authors.lastname: Wang
authors.forename: Fude
authors.initials: F
authors.lastname: Cui
authors.forename: Yorinobu
authors.initials: Y
authors.lastname: Yonezawa
authors.forename: Hisakazu
authors.initials: H
authors.lastname: Sunada
mesh_terms: D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000008:administration & dosage*; D001241:Aspirin / Q000008:administration & dosage*; D055598:Chemical Phenomena; D002627:Chemistry, Physical; D005079:Excipients / Q000737:chemistry*; D008422:Materials Testing; D010316:Particle Size; D011312:Pressure; D013607:Tablets
chemical_list: D000894:Anti-Inflammatory Agents, Non-Steroidal; D005079:Excipients; D013607:Tablets; D001241:Aspirin