# Thicker lubricant layer enhances the droplet mobility on lubricant-infused smooth surfaces

https://mdr.nims.go.jp/datasets/11085416-4e93-473e-aac9-0949aec078d9

## File

- [著者最終稿.pdf](https://mdr.nims.go.jp/filesets/f0eec7b3-3699-4875-8080-4b979467d3ed/download) ([Detail](https://mdr.nims.go.jp/filesets/f0eec7b3-3699-4875-8080-4b979467d3ed.md))

## Id

11085416-4e93-473e-aac9-0949aec078d9

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-06-10T00:19:41.503658Z

## Updated at

2025-06-10T07:30:18.889908Z

## Published at

2025-06-10T07:20:22.618330Z

## Doi

https://doi.org/10.48505/nims.5531

## First published url

https://doi.org/10.1063/5.0274510

## Date published

2025-06-09

## Recorded date published

2025-6-9

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Thicker lubricant layer enhances the droplet mobility on lubricant-infused
    smooth surfaces
  title_type: original
  lang: en

## Description

- description: 'Droplets are highly mobile on lubricant-infused surfaces when droplet−lubricant
    phases are immiscible and lubricant layer is stable. Recent studies have shown
    that the high droplet mobility is due to absence of three-phase contact line friction
    by oleoplaning of the droplets on the lubricant layer. In this state, dynamic
    friction arises primarily from viscous dissipation in the lubricant around the
    droplet. Classical Landau–Levich–Derjaguin (LLD) law suggests that the friction
    force is proportional to the two-thirds power of the capillary number, and the
    lubricant thickness effect is not included. Here, we discovered that increased
    lubricant thickness enhances the droplet''s mobility on lubricant-infused surfaces.
    This finding is unexpected, as a thicker lubricant layer would typically increase
    the potential volume for viscous dissipation. We formed stable lubricant layers
    of varying thicknesses ranging from tens to hundreds of micrometers on a "nanometrically
    smooth" base layer to remove the influence of surface texture. The droplet friction
    force on the different lubricant thickness surfaces is measured using the cantilever
    method. While all surfaces follow LLD law, the friction force significantly decreases
    with increasing the lubricant thicknesses. The possible reason is the decrement
    of the energy dissipation at the lubricant ridge with the thickness. We propose
    a modified friction model incorporating the thickness dependence with the classical
    law, offering deeper insight into droplet friction dynamics on the lubricant-infused
    surfaces. In practical terms, reducing droplet friction enhances transport efficiency,
    contributing to advancements in fluidic systems and liquid-repellent applications. '
  description_type: abstract
  lang: eng

## Creator

- name: Ryo Sakai（酒井 遼）
  role: author
  organization: National Institute for Materials Science
  department: Research Center for Materials Nanoarchitectonics (MANA)/Nanomaterials
    Field/Frontier Molecules Group
- name: Takashi Hiroi（廣井 卓思）
  role: author
  orcid: https://orcid.org/0000-0001-6881-1334
  organization: National Institute for Materials Science
  department: Global Networking Division/International Center for Young Scientists
- name: Ryota Tamate（玉手 亮多）
  role: author
  orcid: https://orcid.org/0000-0002-1704-1058
  organization: National Institute for Materials Science
  department: Research Center for Macromolecules and Biomaterials/Macromolecules Field/Molecular
    Design and Function Group
- name: Timothée Mouterde
  role: author
  organization: The university of Tokyo
- name: Mizuki Tenjimbayashi （天神林 瑞樹）
  role: author
  orcid: https://orcid.org/0000-0002-8107-8285
  organization: National Institute for Materials Science
  department: Research Center for Materials Nanoarchitectonics (MANA)

## Contact agent



## Publisher

organization: AIP Publishing

## Managing organization



## Keyword

- subject: liquid slippery surface
  schema: not_defined
- subject: droplet friction
  schema: not_defined
- subject: Landau–Levich–Derjaguin law
  schema: not_defined

## Rights

- description: 'This article may be downloaded for personal use only. Any other use
    requires prior permission of the author and AIP Publishing. This article appeared
    in Ryo Sakai, Takashi Hiroi, Ryota Tamate, Timothée Mouterde, Mizuki Tenjimbayashi;
    Thicker lubricant layer enhances the droplet mobility on lubricant-infused smooth
    surfaces. Appl. Phys. Lett. 9 June 2025; 126 (23): 231602 and may be found at
    https://doi.org/10.1063/5.0274510.'
  identifier: http://rightsstatements.org/vocab/InC/1.0/

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## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: APPLIED PHYSICS LETTERS
  issn: '10773118'
  volume: '126'
  issue: '23'
  article_number: '231602'

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## Fileset

- id: f0eec7b3-3699-4875-8080-4b979467d3ed
  filename: 著者最終稿.pdf
  content_type: application/pdf
  size: 973345
  md5: c99b9b0b64e70187bfb9f6fce6af9147

## Thumbnail

fileset_id: f0eec7b3-3699-4875-8080-4b979467d3ed
filename: 著者最終稿.pdf