Protein Diffusion through Polymer Meshes As Observed by Pulsed-Field Gradient NMR

Xuhong Guo,Carlos R Pacheco,Lin Fu,Robert K Prud'Homme,Li Li

doi:10.1109/icbbe.2007.184

Protein Diffusion through Polymer Meshes As Observed by Pulsed-Field Gradient NMR

Xuhong Guo, Carlos R Pacheco + Show 3 more

https://doi.org/10.1109/icbbe.2007.184

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Publication Date: Jul 1, 2007

Citations: 4

Affiliation: State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Princeton University

#Polymer Meshes #Pulsed-field Gradient NMR + Show 8 more

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Abstract

Pulsed-field gradient NMR was employed to observe the diffusion of alpha-lactalbumin in poly(ethylene oxide) (PEO) solutions of deuterated water. Polymer mesh size and the interactions between protein and polymer networks strongly affect protein diffusion through polymer meshes. The diffusion coefficients determined by pulsed-field gradient NMR show a good agreement at low polymer concentrations with those obtained by neutron spin-echo spectroscopy (NSE). Deviation between experimental data from theoretical prediction comes from the interactions between protein and polymer meshes.

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