title: Correction: chromatic response of polydiacetylene vesicle induced by the permeation of methotrexate.
authors.affiliation: Department of Chemical and Biomolecular Engineering, KAIST, Daejeon 305-701, Korea. kjd@kaist.ac.kr.
authors.forename: Min Jae
authors.initials: MJ
authors.lastname: Shin
authors.forename: Ye Jin
authors.initials: YJ
authors.lastname: Kim
authors.forename: Jong-Duk
authors.initials: JD
authors.lastname: Kim