title: Selective Coloration of Melanin Nanospheres through Resonant Mie Scattering.
abstract: Black melanin inks are prepared to selectively exhibit colors under strong light, inspired by human hair. High absorbance of melanin suppresses multiple scattering, causing resonant Mie scattering predominant. Various colors can be developed as the resonant wavelength dictated by nanosphere diameter. Therefore, the melanin inks can be used to encrypt and selectively disclose multicolor patterns for anticounterfeiting applications.
authors.affiliation: Department of Chemical and Biomolecular Engineering, KAIST, Daejeon, 34141, South Korea.|Department of Radiology, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA.
authors.forename: Soojeong
authors.initials: S
authors.lastname: Cho
authors.affiliation: Department of Chemical Engineering, Ajou University, Suwon, 16499, South Korea.|Department of Energy Systems Research, Ajou University, Suwon, 16499, South Korea.
authors.forename: Tae Soup
authors.initials: TS
authors.lastname: Shim
authors.affiliation: Department of Chemical and Biomolecular Engineering, KAIST, Daejeon, 34141, South Korea.
authors.forename: Ju Hyeon
authors.initials: JH
authors.lastname: Kim
authors.affiliation: Department of Radiology, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA.|Robert H. Lurie Comprehensive Cancer Center, Chicago, IL, 60611, USA.
authors.forename: Dong-Hyun
authors.initials: DH
authors.lastname: Kim
authors.affiliation: Department of Chemical and Biomolecular Engineering, KAIST, Daejeon, 34141, South Korea.
authors.forename: Shin-Hyun
authors.initials: SH
authors.lastname: Kim
keywords: Mie scattering; melanin; nanospheres