PARTICULE D'HYDROGEL ET SON PROCÉDÉ DE PRODUCTION, CELLULE OU STRUCTURE CELLULAIRE RENFERMANT CHACUNE UNE PARTICULE D'HYDROGEL, PROCÉDÉ D'ÉVALUATION DE L'ACTIVITÉ D'UNE CELLULE À L'AIDE D'UNE PARTICULE D'HYDROGEL, ET UTILISATION D'UNE PARTICULE D'HYDROGEL EN TANT QUE PRÉPARATION À LIBÉRATION PROLONGÉE
The present invention addresses the problem of providing: a hydrogel particle which can be taken into a cell by the action of the cell and can control the release of a magnetic particle enclosed therein into the cell so as to retain the magnetic particle in the cell for a long period； a method for producing the hydrogel particle； a cell or a cell structure each enclosing the hydrogel particle therein； and a method for evaluating the activity of a cell using the hydrogel particle. The present invention solves the problem by a hydrogel particle including: a domain which is composed of a first hydrogel； a matrix which encloses the domain and is composed of a second hydrogel having a different crosslinking degree or composition from that of the first hydrogel； and a magnetic particle which is supported by at least the first hydrogel.
