Thermally Driven Interfacial Switch between Adhesion and Antiadhesion on Gas Bubbles in Aqueous Media

Ruixiao Wang; Mingchao Wang; Chun Wang; Qinglin Yang; Jingming Wang; Lei Jiang

doi:10.1021/acsami.9b14156

journal article·2019-10-09

Thermally Driven Interfacial Switch between Adhesion and Antiadhesion on Gas Bubbles in Aqueous Media

Ruixiao Wang, Mingchao Wang, Chun Wang, Qinglin Yang, Jingming Wang, Lei Jiang

ACS Applied Materials & Interfaces· Volume 11· Issue 40

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Abstract

It is greatly important to understand the gas bubble behaviors and realize their reliable manipulation. There still remain many challenges in the capture, transport, and release of gas bubbles at a preferred location intelligently. Herein, we provide a simple approach to manufacture a composite film with poly(N-isopropylacrylamide) (PNIPAAM) and polypropylene that exhibits smart, reversible, and reliable regulation of gas bubble adhesive behaviors (high and low adhesion) by controlling the temperature (above or below the lower critical solution temperature). By adjusting the composite surface temperature, thermally driven interface switching between intermolecular and intramolecular hydrogen bonding of the PNIPAAM chains resulted in low and high adhesion of air bubbles in an aqueous medium. Gas bubbles could be precisely captured, directionally transported, and precisely released at any preferred location.

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Research context

Composites

OpenAlex topics: Surface Modification and Superhydrophobicity · Fluid Dynamics and Mixing · Innovative Microfluidic and Catalytic Techniques Innovation

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing 100083, China

Beijing BOE Display Technology Company Limited, Beijing 100176, China

Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, 100191, China

Laboratory of Bio-Inspired Smart Interface Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100191, China

Funding

Beihang University · State Administration of Foreign Experts Affairs · Ministry of Education of the People's Republic of China · Natural Science Foundation of Beijing Municipality · National Natural Science Foundation of China · Chinese Academy of Sciences · Beijing Higher Education Young Elite Teacher Project

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