Новизною роботи є теоретичне обґрунтування й експериментальне підтвердження механізму взаємодії наночастинок Fe3O4 з Н2О та овальбуміном-OVA, що проведено за допомогою комплексу фізико-хімічних досліджень. Визначено, що механізм ґрунтується на кластерофільності наночастинок і водневих, електростатичних і вандерваальсових взаємодіях. Встановлено, що взаємодія наночастинок Fe3O4 з OVA відбувалася за механізмом статичного гасіння з утворенням міжмолекулярного нефлуоресцентного комплексу, який змінює нативну структуру OVA. Константа зв'язування змінювалася від 3,3×105 до 4,8×105 л•моль−1 залежно від значення рН середовища та температури. Термодинамічними розрахунками підтверджено спонтанність процесу зв'язування з переважанням ентальпійного фактора.
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