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Updated: Jun 19, 2026

In Situ Monitoring of Diffusion of Guest Molecules in Porous Media Using Electron Paramagnetic Resonance Imaging
Published on: September 2, 2016
THE DIFFUSION COEFFICIENT OF CRYSTALLINE TRYPSIN
1Laboratories of The Rockefeller Institute for Medical Research.
Abstract:
The diffusion coefficient of crystalline trypsin in 0.5 saturated magnesium sulfate at 5 degrees C. is 0.020 +/-0.001 cm.(2) per day, corresponding to a molecular radius of 2.6 x 10(-7) cm. The rate of diffusion of the proteolytic activity is the same as that of the protein nitrogen, indicating that these two properties are held together in chemical combination and not in the form of an adsorption complex.
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