Evidence map›Paper›PMID 38559290›Full record

ArticleACS central science2024

Dynamic Manipulation of Droplets on Liquid-Infused Surfaces Using Photoresponsive Surfactant.

Xichen Liang, Kseniia M Karnaukh, Lei Zhao, Serena Seshadri, Austin J DuBose, Sophia J Bailey, Qixuan Cao, Marielle Cooper, Hao Xu, Michael Haggmark and 5 more

Open access · diamondAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in ACS central science, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
2.4field-weighted citation impact, top 12% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed, 13 citations in OpenAlex.

  1. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

15 authors at 1 institution in 1 country.

Xichen LiangDepartment of Chemical Engineering, University of California at Santa Barbara, Santa Barbara, California 93106-5070, United States.ORCID https://orcid.org/0000-0002-6781-8865
Kseniia M KarnaukhDepartment of Chemistry, University of California at Santa Barbara, Santa Barbara, California 93106-5070, United States.
Lei ZhaoDepartment of Mechanical Engineering, University of California at Santa Barbara, Santa Barbara, California 93106-5070, United States.ORCID https://orcid.org/0000-0002-1743-2606
Serena SeshadriDepartment of Chemistry, University of California at Santa Barbara, Santa Barbara, California 93106-5070, United States.
Austin J DuBoseDepartment of Chemistry, University of California at Santa Barbara, Santa Barbara, California 93106-5070, United States.
Sophia J BaileyDepartment of Chemistry, University of California at Santa Barbara, Santa Barbara, California 93106-5070, United States.
Qixuan CaoDepartment of Physics, University of California at Santa Barbara, Santa Barbara, California 93106-5070, United States.
Marielle CooperDepartment of Mechanical Engineering, University of California at Santa Barbara, Santa Barbara, California 93106-5070, United States.
Hao XuDepartment of Mechanical Engineering, University of California at Santa Barbara, Santa Barbara, California 93106-5070, United States.
Michael HaggmarkDepartment of Chemical Engineering, University of California at Santa Barbara, Santa Barbara, California 93106-5070, United States.
Matthew E HelgesonDepartment of Chemical Engineering, University of California at Santa Barbara, Santa Barbara, California 93106-5070, United States.ORCID https://orcid.org/0000-0001-9384-4023
Michael GordonDepartment of Chemical Engineering, University of California at Santa Barbara, Santa Barbara, California 93106-5070, United States.
Paolo Luzzatto-FegizDepartment of Mechanical Engineering, University of California at Santa Barbara, Santa Barbara, California 93106-5070, United States.
Javier Read de AlanizDepartment of Chemistry, University of California at Santa Barbara, Santa Barbara, California 93106-5070, United States.
Yangying ZhuDepartment of Mechanical Engineering, University of California at Santa Barbara, Santa Barbara, California 93106-5070, United States.ORCID https://orcid.org/0000-0001-9185-3161
University of California, Santa Barbara · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Fast and programmable transport of droplets on a substrate is desirable in microfluidic, thermal, biomedical, and energy devices. Photoresponsive surfactants are promising candidates to manipulate droplet motion due to their ability to modify interfacial tension and generate "photo-Marangoni" flow under light stimuli. Previous works have demonstrated photo-Marangoni droplet migration in liquid media; however, migration on other substrates, including solid and liquid-infused surfaces (LIS), remains an outstanding challenge. Moreover, models of photo-Marangoni migration are still needed to identify optimal photoswitches and assess the feasibility of new applications. In this work, we demonstrate 2D droplet motion on liquid surfaces and on LIS, as well as rectilinear motion in solid capillary tubes. We synthesize photoswitches based on spiropyran and merocyanine, capable of tension changes of up to 5.5 mN/m across time scales as short as 1.7 s. A millimeter-sized droplet migrates at up to 5.5 mm/s on a liquid, and 0.25 mm/s on LIS. We observe an optimal droplet size for fast migration, which we explain by developing a scaling model. The model also predicts that faster migration is enabled by surfactants that maximize the ratio between the tension change and the photoswitching time. To better understand migration on LIS, we visualize the droplet flow using tracer particles, and we develop corresponding numerical simulations, finding reasonable agreement. The methods and insights demonstrated in this study enable advances for manipulation of droplets for microfluidic, thermal and water harvesting devices.

Identifiers

PMID38559290
PMCPMC10979485
OpenAlexW4392187886

What OpenQuestion holds

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LicenceCC BY
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.