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Morphology and stability of NChi2 layers formed from protein at under native conditions: (a) NChi2 coating washed with MQW has Class II morphology; (b) treatment with 60% ethanol does not disrupt the layer; (c) the protein network attached to HOPG is stable towards 3M NaOH; and (d) treatment with 3M HCl disrupts interactions between protein molecules, loosening the mesh structure.
