Protein-concentration-dependent adsorption behaviour of inorganic layered materials

Abstract

Adsorption patterns of BSA in different inorganic layered materials with different ionic exchange capacities (IEC) of low, suitable and high are shown from left to right. BSA/Clay concentrations (0/1-5/1) with respective d-spacing are shown from left to right.

Effective intercalation of zein into Na-montmorillonite: role of the protein components and use of the developed biointerfaces

“…However, protein adsorption on montmorillonite clay can be considered a complex process in which the structural stability of the protein, the ionic strength, the pH value as well as the surface properties can influence the affinity of the biomolecule toward the inorganic interface. In addition to the particular characteristics of each protein, the structural size and proportion of hydrophobic residues may be also a key factor in order to achieve their intercalation in montmorillonite [11–12]. Thus, depending on the type of protein involved, it is possible to obtain different interaction mechanisms between the clay and the biomacromolecule, generating the need to investigate possible interactions that can occur in less-studied proteins.…”