Isoelectric point

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3. February 2021

Abbreviation IEP, also pI or point of zero charge, is an important parameter for assessing the behaviour of nanoparticles in aqueous surroundings. The IEP is the pH of an aqueous suspension, where the positive and negative charges on the particle surfaces are balanced. The IEP for each particle type is individually different and an important material parameter to assess the stability of particles in suspension.

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