Effect of albumin on the aggregation of deuteroporphyrin in aqueous organic medium

In water–DMF at DMF content less than 2.6moldm⁻³, deuteroporphyrin IX dimethyl ester forms both H- and J-aggregates. The J-aggregates are detected as a single type of associated species after binding of the porphyrin with BSA on the surface of the protein IB subdomain.