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. 1985 Nov;2(6):302-6.
doi: 10.1023/A:1016397719020.

Mechanical activation of pharmaceutical systems

R Hüttenrauch  1 , S Fricke, P Zielke
Affiliations

Mechanical activation of pharmaceutical systems

R Hüttenrauch et al. Pharm Res. 1985 Nov.

Abstract

Mechanical activation has become a phenomenon of general significance in pharmaceutics. This report describes the extent of activation induced by relevant processes. With the use of the Eyring equation the transformation of structurally stored energy into chemical energy and the implied free enthalpy as well as the excess free enthalpy (activity) were evaluated from the rate of an indicator reaction. A comparison was made between different kinds of milling and tabletting with respect to pharmaceutical conditions. An optimization of these processes was derived.

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