Tags

Type your tag names separated by a space and hit enter

Dynamics of Ferrofluid Drops on Magnetically Patterned Surfaces.
Langmuir. 2018 07 31; 34(30):8917-8922.L

Abstract

The motion of liquid drops on solid surfaces is attracting a lot of attention because of its fundamental implications and wide technological applications. In this article, we present a comprehensive experimental study of the interaction between gravity-driven ferrofluid drops on very slippery oil-impregnated surfaces and a patterned magnetic field. The drop speed can be accurately tuned by the magnetic interaction, and more interestingly, drops are found to undergo a stick-slip motion whose contrast and phase can be easily tuned by changing either the strength of the magnetic field or the ferrofluid concentration. This motion is the result of the periodic modulation of the external magnetic field and can be accurately analyzed because the intrinsic pinning due to chemical defects is negligible on oil-impregnated surfaces.

Authors+Show Affiliations

Dipartimento di Fisica e Astronomia "G. Galilei" , Università di Padova , via Marzolo 8 , 35131 Padova , Italy.Dipartimento di Fisica e Astronomia "G. Galilei" , Università di Padova , via Marzolo 8 , 35131 Padova , Italy.Dipartimento di Fisica e Astronomia "G. Galilei" , Università di Padova , via Marzolo 8 , 35131 Padova , Italy.Dipartimento di Fisica e Astronomia "G. Galilei" , Università di Padova , via Marzolo 8 , 35131 Padova , Italy.Dipartimento di Fisica e Astronomia "G. Galilei" , Università di Padova , via Marzolo 8 , 35131 Padova , Italy.Dipartimento di Fisica e Astronomia "G. Galilei" , Università di Padova , via Marzolo 8 , 35131 Padova , Italy.Sorbonne Université, CNRS, Laboratoire Physico-Chimie des Electrolytes et Nanosystèmes, PHENIX , F-75005 Paris , France.Sorbonne Université, CNRS, Laboratoire Physico-Chimie des Electrolytes et Nanosystèmes, PHENIX , F-75005 Paris , France.Dipartimento di Fisica e Astronomia "G. Galilei" , Università di Padova , via Marzolo 8 , 35131 Padova , Italy.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

29969901

Citation

Rigoni, C, et al. "Dynamics of Ferrofluid Drops On Magnetically Patterned Surfaces." Langmuir : the ACS Journal of Surfaces and Colloids, vol. 34, no. 30, 2018, pp. 8917-8922.
Rigoni C, Ferraro D, Carlassara M, et al. Dynamics of Ferrofluid Drops on Magnetically Patterned Surfaces. Langmuir. 2018;34(30):8917-8922.
Rigoni, C., Ferraro, D., Carlassara, M., Filippi, D., Varagnolo, S., Pierno, M., Talbot, D., Abou-Hassan, A., & Mistura, G. (2018). Dynamics of Ferrofluid Drops on Magnetically Patterned Surfaces. Langmuir : the ACS Journal of Surfaces and Colloids, 34(30), 8917-8922. https://doi.org/10.1021/acs.langmuir.8b01520
Rigoni C, et al. Dynamics of Ferrofluid Drops On Magnetically Patterned Surfaces. Langmuir. 2018 07 31;34(30):8917-8922. PubMed PMID: 29969901.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Dynamics of Ferrofluid Drops on Magnetically Patterned Surfaces. AU - Rigoni,C, AU - Ferraro,D, AU - Carlassara,M, AU - Filippi,D, AU - Varagnolo,S, AU - Pierno,M, AU - Talbot,D, AU - Abou-Hassan,A, AU - Mistura,G, Y1 - 2018/07/18/ PY - 2018/7/5/pubmed PY - 2018/7/5/medline PY - 2018/7/5/entrez SP - 8917 EP - 8922 JF - Langmuir : the ACS journal of surfaces and colloids JO - Langmuir VL - 34 IS - 30 N2 - The motion of liquid drops on solid surfaces is attracting a lot of attention because of its fundamental implications and wide technological applications. In this article, we present a comprehensive experimental study of the interaction between gravity-driven ferrofluid drops on very slippery oil-impregnated surfaces and a patterned magnetic field. The drop speed can be accurately tuned by the magnetic interaction, and more interestingly, drops are found to undergo a stick-slip motion whose contrast and phase can be easily tuned by changing either the strength of the magnetic field or the ferrofluid concentration. This motion is the result of the periodic modulation of the external magnetic field and can be accurately analyzed because the intrinsic pinning due to chemical defects is negligible on oil-impregnated surfaces. SN - 1520-5827 UR - https://www.unboundmedicine.com/medline/citation/29969901/Dynamics_of_Ferrofluid_Drops_on_Magnetically_Patterned_Surfaces L2 - https://dx.doi.org/10.1021/acs.langmuir.8b01520 DB - PRIME DP - Unbound Medicine ER -
Try the Free App:
Prime PubMed app for iOS iPhone iPad
Prime PubMed app for Android
Prime PubMed is provided
free to individuals by:
Unbound Medicine.