Fig. (4) Aggregation kinetics of hen egg white lysozyme solutions after addition of DTT. Lysozyme concentration was always 0.1 mg/ml, experiments were performed at 37 ºC, phosphate buffer, pH 7.0. Curves definition: 1 – pure lysozyme solution; 2 – lysozyme and native αB-crystallin at concentration 0.1 mg/ml; 3 – lysozyme and cross-linked αB-crystallin at concentration 0.1 mg/ml; 4 – ly-sozyme and cross-linked αB-crystallin at concentration 0.2 mg/ml