# Visualization of the Assembly Behaviors of Gel Layer-Coated Melanin Particles at the Air/Water Interface via Structural Color

https://mdr.nims.go.jp/datasets/77f07bd8-2a91-48b4-98b4-406c19cad5cb

## File

- [Re_YM_0727.docx](https://mdr.nims.go.jp/filesets/745cf396-5e18-4c26-b0db-73cc6ba705a9/download) ([Detail](https://mdr.nims.go.jp/filesets/745cf396-5e18-4c26-b0db-73cc6ba705a9.md))

## Id

77f07bd8-2a91-48b4-98b4-406c19cad5cb

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-12-24T01:56:33.784000Z

## Updated at

2026-04-30T03:01:11.491392Z

## Published at

2026-10-30T23:36:40.824342Z

## Doi

https://doi.org/10.48505/nims.6078

## First published url

https://doi.org/10.1021/acs.langmuir.5c03990

## Date published

2025-11-11

## Recorded date published

2025-11-11

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Visualization of the Assembly Behaviors of Gel Layer-Coated Melanin Particles
    at the Air/Water Interface via Structural Color
  title_type: original
  lang: en

## Description

- description: Surface-modified particles and microgels are recognized for adsorbing
    at the air/water interface. This particle assembly behavior has been evaluated
    primarily under conditions where all the particles are adsorbed using a dilute
    dispersion. In this study, we visualized the adsorption/stabilization process
    of particle assemblies at the air/water interface in a concentrated dispersion
    through structural coloration. Melanin particles coated with a gel layer were
    prepared, and these aqueous dispersions were dried. Pronounced coffee ring patterns
    with almost no particle deposition in the center of the pattern were obtained
    from pristine melanin particle dispersions. On the other hand, the use of polymer
    gel-coated particles suppressed the coffee ring effect and resulted in particle
    deposition not only around the pattern periphery but also in the center, indicating
    that the assembly behavior was affected by the gel layer. The observation of structural
    color during the drying process revealed adsorption at the air/water interface
    and differences in the size and motion of the domain. Furthermore, it was demonstrated
    that the use of this gel-coated particle is effective for structural color coating
    with uniform visibility.
  description_type: abstract
  lang: und

## Creator

- name: Yui Maejima
  role: author
- name: Ai Takabatake
  role: author
- name: Shin-ichi Takeda
  role: author
- name: Hiroshi Fudouzi
  role: author
  orcid: https://orcid.org/0000-0003-1442-4667
- name: Keiki Kishikawa
  role: author
  orcid: https://orcid.org/0000-0002-7539-568X
- name: Daisuke Unabara
  role: author
  orcid: https://orcid.org/0000-0001-5347-7257
- name: Tasuku Hamaguchi
  role: author
- name: Koji Yonekura
  role: author
  orcid: https://orcid.org/0000-0001-5520-4391
- name: Takuma Kureha
  role: author
  orcid: https://orcid.org/0000-0003-4680-6440
- name: Hideyuki Mitomo
  role: author
  orcid: https://orcid.org/0000-0002-6748-7816
- name: Kanae Ito
  role: author
- name: Keiichi Osaka
  role: author
- name: Kiyoshi Kanie
  role: author
- name: Michinari Kohri
  role: author
  orcid: https://orcid.org/0000-0003-1118-5568

## Contact agent



## Publisher

organization: American Chemical Society (ACS)

## Managing organization



## Keyword

- subject: Particle assembly
  schema: not_defined
- subject: Coffee-ring
  schema: not_defined
- subject: Gel layer
  schema: not_defined
- subject: Structural color
  schema: not_defined
- subject: Melanin
  schema: not_defined
- subject: Air/water interface
  schema: not_defined

## Rights

- description: This document is the Accepted Manuscript version of a Published Work
    that appeared in final form in Langmuir, copyright © 2025 American Chemical Society
    after peer review and technical editing by the publisher. To access the final
    edited and published work see https://doi.org/10.1021/acs.langmuir.5c03990.
  identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo

start_date: 2025-10-31
end_date: 2026-10-31

## Journal

- title: Langmuir
  issn: '07437463'
  volume: '41'
  issue: '44'
  start_page: 29730
  end_page: 29740

## Conference



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## Funding

- identifier: '20251002'
  funder_name: Ministry of Education, Culture, Sports, Science and Technology
- identifier: '20255002'
  funder_name: Ministry of Education, Culture, Sports, Science and Technology
- identifier: JP25ama121006
  funder_name: Japan Agency for Medical Research and Development
- identifier: JP23H02018
  funder_name: Japan Society for the Promotion of Science
- identifier: JP24H01697
  funder_name: Japan Society for the Promotion of Science
- identifier: 2024-042
  funder_name: National Institute for Materials Science
- identifier: 2025-011
  funder_name: National Institute for Materials Science
- identifier: J24HJ00045
  funder_name: Support for Pioneering Research Initiated by the Next Generation

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## Fileset

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  filename: Re_YM_0727.docx
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## Thumbnail

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filename: Re_YM_0727.docx