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Two types of NIR‐triggered core‐shell type nanoshells; mesoporous silica core encapsulated with drug, fluorescent agent or photothermal therapy agent covered with an NIR responsive shell and an additional outer mesoporous silica shell functionalized for targeted delivery (A), NIR responsive core such as copper, graphene nanosheets and gold derivatives coated with mesoporous silica shell as a drug reservoir and functionalized surface (B).
