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Sensitivity of PS/CoPd Janus particles to an external magnetic field.

ABSTRACT: The dual nature of Janus particles confers fascinating properties such as a response to multiple stimuli. In this communication, we systematically study the sensitivity to a uniform external magnetic field of isolated Janus rod-shaped and spherical particles in water confined to two dimensions. The Janus asymmetry of the particles is given by magnetic [Co(0.28 nm)/Pd(0.90 nm)]₈ multilayer films deposited onto monodisperse polystyrene (PS) nanorods and microspheres, respectively. It is shown that the particles dispersed in water respond to weak magnetic field applied in in-plane direction. Here we demonstrate that a precise control of the in-plane particle orientation can be obtained for magnetic field strengths higher than 0.1 mT for microspheres and 0.4 mT for nanorods.

SUBMITTER: Eichler-Volf A

PROVIDER: S-EPMC9032904 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature

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Sensitivity of PS/CoPd Janus particles to an external magnetic field.

Eichler-Volf Anna A Alsaadawi Yara Y Luna Fernando Vazquez FV Khan Qaiser Ali QA Stierle Simon S Xu Chi C Heigl Michael M Fekri Zahra Z Zhou Shengqiang S Zahn Peter P Albrecht Manfred M Steinhart Martin M Erbe Artur A

RSC advances 20210510 28

The dual nature of Janus particles confers fascinating properties such as a response to multiple stimuli. In this communication, we systematically study the sensitivity to a uniform external magnetic field of isolated Janus rod-shaped and spherical particles in water confined to two dimensions. The Janus asymmetry of the particles is given by magnetic [Co(0.28 nm)/Pd(0.90 nm)]<sub>8</sub> multilayer films deposited onto monodisperse polystyrene (PS) nanorods and microspheres, respectively. It is ...[more]

PMID: 35479683

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