Magnetic liquid marbles : Toward “Lab in a Droplet“

Zhao,Y, Xu,Z, Niu,H, Wang,X and Lin,T 2015, Magnetic liquid marbles : Toward “Lab in a Droplet“, Advanced Functional Materials, vol. 25, no. 3, pp. 437-444, doi: 10.1002/adfm.201403051.

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Title Magnetic liquid marbles : Toward “Lab in a Droplet“
Author(s) Zhao,Y
Niu,HORCID iD for Niu,H
Wang,XORCID iD for Wang,X
Lin,TORCID iD for Lin,T
Journal name Advanced Functional Materials
Volume number 25
Issue number 3
Start page 437
End page 444
Total pages 8
Publisher Birkhaeuser Verlag
Place of publication Weinheim, Germany
Publication date 2015-01-01
ISSN 1616-301X
Keyword(s) Liquid marbles
Miniature labs
“on-line“ detections
Science & Technology
Physical Sciences
Chemistry, Multidisciplinary
Chemistry, Physical
Nanoscience & Nanotechnology
Materials Science, Multidisciplinary
Physics, Applied
Physics, Condensed Matter
Science & Technology - Other Topics
Materials Science
Summary Liquid marbles exhibit great potential for use as miniature labs for small-scale laboratory operations, such as experiment and measurement. While important progress has been made recently in exploring their applications as microreactions, “on-line“ measurement of the components inside the liquid still remains a challenge. Herein, it is demonstrated that “on-line“ detection can be realized on magnetic liquid marbles by taking advantage of their unique magnetic opening feature. By partially opening the particle shell, electrochemical measurement is carried out with a miniaturized three-electrode probe and the application of this technique for quantitative measurement of dopamine is demonstrated. Fully opened magnetic liquid marble makes it feasible to detect the optical absorbance of the liquid in a transmission mode. With this optical method, a glucose assay is demonstrated. Moreover, when magnetic particle shell contains low melting point material, e.g., wax, the liquid marble shows a unique encapsulation ability to form a rigid shell after heating, which facilitates the storage of the non-volatile ingredients. These unique features, together with the versatile use as microreactors, enable magnetic liquid marbles to function as a miniature lab (or called “lab in a droplet“), which may find applications in clinical diagnostics, biotechnology, chemical synthesis, and analytical chemistry.
Language eng
DOI 10.1002/adfm.201403051
Field of Research 091205 Functional Materials
030603 Colloid and Surface Chemistry
Socio Economic Objective 970110 Expanding Knowledge in Technology
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Grant ID DP110101315
Copyright notice ©2015, Wiley-VCH Verlag
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Document type: Journal Article
Collections: Institute for Frontier Materials
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