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Polymer identification & protein adsorption

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I need to understand the relationship between polymer charge ( +, -, neutral) and protien adsorption

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The expert examines polymer identifications and protein adsorptions.

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Most polymer surfaces acquire some charge when exposed to ionic solutions. In such cases the long-ranged electrostatic interaction will dominate protein adsorption kinetics. Because of the long-ranged nature of the electrostatic interactions protein may be "guided" ...

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