Titre :

Photo/Thermo Dual Stimulus-Responsive Liquid Marbles Stabilized with Polypyrrole-Coated Stearic Acid Particles

Auteur(s) :

Tsumura, Yusuke [Auteur]
Osaka Institute of Technology = Osaka Kogyo Daigaku [OIT]
Oyama, Keigo [Auteur]
Osaka Institute of Technology = Osaka Kogyo Daigaku [OIT]
Fameau, Anne-Laure [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Seike, Musashi [Auteur]
Osaka Institute of Technology = Osaka Kogyo Daigaku [OIT]
Ohtaka, Atsushi [Auteur]
Osaka Institute of Technology = Osaka Kogyo Daigaku [OIT]
Hirai, Tomoyasu [Auteur]
Osaka Institute of Technology = Osaka Kogyo Daigaku [OIT]
Nakamura, Yoshinobu [Auteur]
Osaka Institute of Technology = Osaka Kogyo Daigaku [OIT]
Fujii, Syuji [Auteur]
Osaka Institute of Technology = Osaka Kogyo Daigaku [OIT]
Tsumura, Yusuke [Auteur]

Titre de la revue :

ACS Applied Materials & Interfaces

Nom court de la revue :

ACS Appl. Mater. Interfaces

Numéro :

14

Pagination :

41618-41628

Éditeur :

American Chemical Society (ACS)

Date de publication :

2022-08-31

ISSN :

1944-8244

Mot(s)-clé(s) en anglais :

liquid marbles
light
heat
dual stimulus-responsive
fatty acid
core−shell particles
phase-change material

Discipline(s) HAL :

Physique [physics]/Matière Condensée [cond-mat]/Science des matériaux [cond-mat.mtrl-sci]
Physique [physics]/Matière Condensée [cond-mat]/Matière Molle [cond-mat.soft]
Sciences de l'ingénieur [physics]/Génie des procédés
Sciences du Vivant [q-bio]/Ingénierie des aliments
Sciences du Vivant [q-bio]/Biochimie, Biologie Moléculaire/Biologie moléculaire

Résumé en anglais : [en]

In this study, we report on the fabrication of photo/thermo dual stimulus-responsive liquid marbles (LMs) that can be disrupted by light irradiation and/or heating. To stabilize the LMs, we synthesized micrometer-sized ...
Lire la suite >In this study, we report on the fabrication of photo/thermo dual stimulus-responsive liquid marbles (LMs) that can be disrupted by light irradiation and/or heating. To stabilize the LMs, we synthesized micrometer-sized stearic acid (SA) particles coated with overlayers of polypyrrole (PPy) by aqueous chemical oxidative seeded dispersion polymerization. The SA/PPy core–shell particles could adsorb at the air–water interface to stabilize LMs by rolling water droplets on the particle powder bed. The presence of SA, known as a phase-change material, which undergoes a transition from solid to liquid by heating, and PPy, which can transduce light to heat, gives rise to the photo and thermo dual stimulus-responsive characters of the LMs. The disruption of the LMs could be induced in a cascade manner: light irradiation on the LM induced a temperature increase, followed by melting of the SA component on the LM surface, leading to its disruption and release of the inner water. The disruption time is linked to the PPy loading and light irradiation power, and it can be tuned from quasi-instantaneous to a few tens of seconds. The melting of SA due to a light-induced phase change from the solid to liquid state is a new mechanism to trigger the disruption of LMs. We finally demonstrated two applications of the LMs as a light-responsive microreactor and a sensor.Lire moins >

Langue :

Anglais

Comité de lecture :

Oui

Audience :

Internationale

Vulgarisation :

Non

Établissement(s) :

Université de Lille
CNRS
INRAE
ENSCL

Collections :

• Unité Matériaux et Transformations (UMET) - UMR 8207

Équipe(s) de recherche :

Processus aux Interfaces et Hygiène des Matériaux (PIHM)

Date de dépôt :

2023-05-23T11:44:14Z
2023-05-25T12:24:50Z