Related Experiment Video
Updated: May 16, 2026
06:01
Frugal Imaging Technique of Capillary Flow Through Three-Dimensional Polymeric Printing Powders
Published on: October 4, 2022
[Characterization of flowability of pharmaceutical powders based on multivariate analysis method]
Yan Du1, Li-Jie Zhao, Yao-Kun Xiong
1Engineering Research Center of Modern Preparation Technology of Traditional Chinese Medicine, Ministry of Education, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
Yao Xue Xue Bao = Acta Pharmaceutica Sinica
|December 11, 2012
Summary
Multivariate analysis offers a more objective method for evaluating pharmaceutical powder flowability. This approach allows for precise ranking and quantification, improving upon traditional single-parameter techniques.
Area of Science:
- Pharmaceutical Sciences
- Materials Science
- Chemical Engineering
Context:
- Powder flowability is critical for pharmaceutical manufacturing processes.
- Existing methods like repose angle and Carr's index have limitations in accurately characterizing diverse powder behaviors.
- Comprehensive characterization of pharmaceutical materials requires advanced analytical techniques.
Purpose:
- To investigate and characterize the flowability of pharmaceutical powders with varying properties.
- To evaluate the feasibility of using multivariate analysis for assessing powder flowability.
- To develop a more objective and quantifiable standard method for powder flowability evaluation.
Summary:
- This study explored various powder flowability characterization methods, including repose angle, HR, Carr's index, Jenike flow function, fractal dimension, and mass flow rate.
- Multivariate analysis was employed to evaluate the flowability of pharmaceutical powders, considering their comprehensive features.
- The results indicate that multivariate analysis is a feasible and superior alternative to mass flow rate methods for evaluating powder flowability.
Impact:
- Establishes multivariate analysis as a reliable method for evaluating pharmaceutical powder flowability.
- Enables objective ranking, quantification, and determination of critical flowability values for production.
- Promotes the development of a standardized, objective method for powder flowability assessment, moving beyond single-parameter limitations.
Related Concept Videos
01:14Drug Dissolution: Requirements and Profile Comparison
The acceptance criteria for dissolution profile data are anchored in Q values, representing the percentage of drug dissolved within a specified period. This assessment unfolds in three stages:First Stage: The test passes if all six drug dosage units are equal to or greater than Q plus 5%; otherwise, the sample proceeds to the second stage.Second Stage: The average of twelve units must be equal to or greater than Q, with no unit falling below Q - 15% to pass; if not, it progresses to the final...
01:27Pharmaceutical Alternatives: Polymorphic Form-Related and Particle Size-Related Therapeutic Nonequivalence
Changes in polymorphic forms can significantly influence the bioavailability of poorly soluble drugs. Although the FDA defines pharmaceutical equivalence based on having the same active ingredient, dosage form, and route of administration, it does not automatically disqualify products with different polymorphic forms. This means two products with different polymorphs can still be deemed pharmaceutically equivalent. However, polymorphic differences can affect properties like wettability,...
01:28Factors Influencing Drug Absorption: Pharmaceutical Parameters
Solid dosage forms such as tablets and capsules undergo rigorous manufacturing processes to ensure stability and effectiveness. Their dissolution and absorption properties are influenced significantly by the choice of excipients (inactive ingredients that serve various roles in the formulation), and the methodology applied during production. The manufacturing parameters, such as compression force and granulation techniques, significantly affect dissolution rates. Elevated compression forces...
00:59Model-Independent Approaches for Pharmacokinetic Data: Noncompartmental Analysis
Noncompartmental analyses offer an alternative method for describing drug pharmacokinetics without relying on a specific compartmental model. In this approach, the drug's pharmacokinetics are assumed to be linear, with the terminal phase log-linear. This assumption allows for simplified analysis and interpretation of the drug's behavior in the body.
One important characteristic of noncompartmental analyses is that drug exposure increases proportionally with increasing doses. This relationship...
One important characteristic of noncompartmental analyses is that drug exposure increases proportionally with increasing doses. This relationship...
01:09In Vitro Drug Dissolution: Compendial Testing Models II
Various dissolution methods are utilized to assess a drug’s dissolution rate, including the flow-through cell, paddle-over-disk, cylinder, and reciprocating disk methods.The flow-through cell apparatus (USP (United States Pharmacopeia) method 4) comprises a reservoir for the dissolution medium and a pump that propels the medium through the cell containing the test sample. This method is crucial for assessing modified-release dosage forms with minimally soluble active ingredients, maintaining...
01:13In Vitro Drug Dissolution: Compendial Testing Models I
Compendial dissolution methods are standardized procedures defined by pharmacopeias to evaluate the rate at which a drug dissolves in a specific medium. These methods ensure batch-to-batch consistency, enable quality control, and support the prediction of drug bioavailability. They are critical for both immediate and modified-release drug products.The apparatuses used for dissolution testing differ in their design and mechanical function, but all aim to simulate the physiological environment of...