Impact of Electrostatics on Processing and Product Performance of Pharmaceutical Solids.

Abstract:

:Manufacturing of pharmaceutical solids involves different unit operations and processing steps such as powder blending, fluidization, sieving, powder coating, pneumatic conveying and spray drying. During these operations, particles come in contact with other particles, different metallic, glass or polymer surfaces and can become electrically charged. Electrostatic charging often gives a negative connotation as it creates sticking, jamming, segregation or other issues during tablet manufacturing, capsule filling, film packaging and other pharmaceutical operations. A thorough and fundamental appreciation of the current knowledge of mechanisms and the potential outcomes is essential in order to minimize potential risks resulting from this phenomenon. The intent of this review is to discuss the electrostatic properties of pharmaceutical powders, equipment surfaces and devices affecting pharmaceutical processing and product performance. Furthermore, the underlying mechanisms responsible for the electrostatic charging are described and factors affecting electrostatic charging have been reviewed in detail. Feasibility of different methods used in the laboratory and pharmaceutical industry to measure charge propensity and decay has been summarized. Different computational and experimental methods studied have proven that the particle charging is a very complex phenomenon and control of particle charging is extremely important to achieve reliable manufacturing and reproducible product performance.

journal_name

Curr Pharm Des

authors

Desai PM,Tan BM,Liew CV,Chan LW,Heng PW

doi

10.2174/1381612821666151008124811

subject

Has Abstract

pub_date

2015-01-01 00:00:00

pages

5923-9

issue

40

eissn

1381-6128

issn

1873-4286

pii

CPD-EPUB-70951

journal_volume

21

pub_type

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