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Herein,we reported a shape-changeable micelle composed of two kinds of triblock copolymers,BR-FFVLK-PEG and Ce6-FFVLK-PEG,which both included(i)functional hydrophobic block(bilirubin,BR or chlorin e6,Ce6),(ii)a phe-phe-val-leu-lys pentapeptide(FFVLK)derived from amyloid β(Aβ)and(iii)a hydrophilic polyethylene glycol(PEG,Mr = 790 Da)chain.