Selective Coloration of Melanin Nanospheres through Resonant Mie Scattering

Soojeong Cho; Tae Soup Shim; Ju Hyeon Kim; Dong Hyun Kim; Shin Hyun Kim

doi:10.1002/adma.201700256

Selective Coloration of Melanin Nanospheres through Resonant Mie Scattering

Soojeong Cho, Tae Soup Shim, Ju Hyeon Kim, Dong Hyun Kim, Shin Hyun Kim^*

^*Corresponding author for this work

Radiology

Research output: Contribution to journal › Article › peer-review

63 Scopus citations

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.

Original language	English (US)
Article number	1700256
Journal	Advanced Materials
Volume	29
Issue number	22
DOIs	https://doi.org/10.1002/adma.201700256
State	Published - Jun 13 2017

Funding

This work was supported by the Midcareer Researcher Program (2014R1A2A2A01005813), X-Project (NRF-2016R1E1A2913875), and Global Research Laboratory (NRF-2015K1A1A2033054) through an NRF grant funded by the Ministry of Science, ICT and Future Planning (MSIP).

Keywords

Mie scattering
melanin
nanospheres

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
General Materials Science

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10.1002/adma.201700256

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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.",

keywords = "Mie scattering, melanin, nanospheres",

author = "Soojeong Cho and Shim, {Tae Soup} and Kim, {Ju Hyeon} and Kim, {Dong Hyun} and Kim, {Shin Hyun}",

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AU - Cho, Soojeong

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AU - Kim, Dong Hyun

AU - Kim, Shin Hyun

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PY - 2017/6/13

Y1 - 2017/6/13

N2 - 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.

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KW - nanospheres

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Selective Coloration of Melanin Nanospheres through Resonant Mie Scattering

Abstract

Funding

Keywords

ASJC Scopus subject areas

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