# Grinding‐Induced Water Solubility Exhibited by Mechanochromic Luminescent Supramolecular Fibers

https://mdr.nims.go.jp/datasets/029716bf-b963-4607-8135-26876c20f656

## File

- [Small - 2024 - Liu - Grinding‐Induced Water Solubility Exhibited by Mechanochromic Luminescent Supramolecular Fibers.pdf](https://mdr.nims.go.jp/filesets/e5dde3e4-f12a-409c-a020-b5841fa2092c/download) ([Detail](https://mdr.nims.go.jp/filesets/e5dde3e4-f12a-409c-a020-b5841fa2092c.md))

## Id

029716bf-b963-4607-8135-26876c20f656

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-08-16T07:26:22.652239Z

## Updated at

2024-08-19T07:30:14.323604Z

## Published at

2024-08-19T07:30:14.769307Z

## Doi



## First published url

https://doi.org/10.1002/smll.202400063

## Date published

2024-03-10

## Recorded date published

2024-8

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Grinding‐Induced Water Solubility Exhibited by Mechanochromic Luminescent
    Supramolecular Fibers
  title_type: original
  lang: en

## Description

- description: 'Most mechanochromic luminescent compounds are crystalline and highly
    hydrophobic; however, mechanochromic luminescent molecular assemblies comprising
    amphiphilic molecules have rarely been explored. This study investigated mechanochromic
    luminescent supramolecular fibers composed of dumbbell-shaped 9,10-bis(phenylethynyl)anthracene-based
    amphiphiles without any tetraethylene glycol (TEG) substituents or with two TEG
    substituents. Both amphiphiles formed water-insoluble supramolecular fibers via
    linear hydrogen bond formation. Both compounds acquired water solubility when
    solid samples composed of supramolecular fibers were ground. Grinding induces
    the conversion of one-dimensional supramolecular fibers into micellar assemblies
    where fluorophores can form excimers, thereby resulting in a large redshift in
    the fluorescence spectra. Excimer emission from the ground amphiphile without
    TEG chains was retained after dissolution in water. The micelles were stable in
    water because hydrophilic dendrons surrounded the hydrophobic luminophores. By
    contrast, when water was added to a ground amphiphile having TEG substituents,
    fragmented supramolecular fibers with the same molecular arrangement as the initial
    supramolecular fibers were observed, because fragmented fibers are thermodynamically
    preferable to micelles as the hydrophobic arrays of fluorophores are covered with
    hydrophilic TEG chains. This leads to the recovery of the initial fluorescent
    properties for the latter amphiphile. These supramolecular fibers can be used
    as practical mechanosensors to detect forces at the mesoscale. '
  description_type: abstract
  lang: und

## Creator

- name: Qiming Liu
  role: author
- name: Tianyue Zhang
  role: author
- name: Yuka Ikemoto
  role: author
- name: Yudai Shinozaki
  role: author
- name: Go Watanabe
  role: author
- name: Yuta Hori
  role: author
- name: Yasuteru Shigeta
  role: author
- name: Takemi Midorikawa
  role: author
- name: Koji Harano
  role: author
  orcid: https://orcid.org/0000-0001-6800-8023
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: Yoshimitsu Sagara
  role: author

## Contact agent



## Publisher

organization: Wiley

## Managing organization



## Keyword

- subject: supramolecular polymers
  schema: not_defined
- subject: mechanochromic luminescence
  schema: not_defined
- subject: grind-induced water solubility
  schema: not_defined
- subject: atomic force microscopy
  schema: not_defined
- subject: transmission electron microscopy
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by/4.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Small
  issn: '16136810'
  start_page: 1613
  end_page: 1613
  article_number: '2400063'

## Conference



## Related item



## Funding

- identifier: JPMJCR20B2
  funder_name: Core Research for Evolutional Science and Technology
- identifier: JP23H04878
  funder_name: Japan Society for the Promotion of Science
- identifier: JP23H04874
  funder_name: Japan Society for the Promotion of Science
- identifier: JP23H04879
  funder_name: Japan Society for the Promotion of Science
- identifier: JP16K17885
  funder_name: Japan Society for the Promotion of Science

## Instrument



## Instrument operator



## Instrument managing organization



## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



## Specific property for specimen



## Process for specimen treatment



## Computational method



## Energy level/transition state



## Software



## Custom property



## Fileset

- id: e5dde3e4-f12a-409c-a020-b5841fa2092c
  filename: Small - 2024 - Liu - Grinding‐Induced Water Solubility Exhibited by Mechanochromic
    Luminescent Supramolecular Fibers.pdf
  content_type: application/pdf
  size: 4778075
  md5: 91655d3f7e7522a980d69671fcb09bf8

## Thumbnail

fileset_id: e5dde3e4-f12a-409c-a020-b5841fa2092c
filename: Small - 2024 - Liu - Grinding‐Induced Water Solubility Exhibited by Mechanochromic
  Luminescent Supramolecular Fibers.pdf