• Publication Date: 10/01/2008
  • Author(s):
    Jinks, Phil
  • Organization(s):
    3M Drug Delivery Systems
  • Article Type: Technical Articles
  • Subjects: Devices and Components
Using a particulate semi-permeable matrix (PSPM) foam component as a holding chamber for a valve improves sampling consistency in flocculating suspensions.

Recently, researchers have been exploring the use of a novel, semi-permeable system component made of a reticulated foam for use with suspension formulations to alleviate valve sampling problems. Reticulated foams feature open pore structures with specified numbers of pores per inch. Using the foam as a holding chamber adjacent to the valve sampling point prevents flocs forming in a suspension formulation from growing any larger than the volume of the pores.

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