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Related Experiment Video

Updated: May 23, 2026

Preparation of Cross-Linked Sodium Alginate Microspheres with Different Metal Ions Using the Microfluidic Electrospray Technology
07:24

Preparation of Cross-Linked Sodium Alginate Microspheres with Different Metal Ions Using the Microfluidic Electrospray Technology

Published on: June 7, 2024

Liquid-filled metal microcapsules.

Marcia W Patchan1, Lance M Baird, Yo-Rhin Rhim

  • 1Research and Exploratory Development Department, Adpplied Physics Laboratory, The Johns Hopkins University, Laurel, Maryland 20723, USA.

ACS Applied Materials & Interfaces
|April 19, 2012
PubMed
Summary
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Researchers developed a novel method to microencapsulate moisture-sensitive diisocyanate liquids in thin metal shells. This metal microencapsulation offers superior mechanical and barrier properties compared to traditional polymer methods.

Area of Science:

  • Materials Science
  • Chemical Engineering
  • Nanotechnology

Background:

  • Moisture- and air-sensitive chemicals require robust encapsulation for storage and application.
  • Conventional polymeric microencapsulation has limitations in mechanical strength and barrier properties.

Purpose of the Study:

  • To develop a novel method for microencapsulating moisture-sensitive liquids in metal shells.
  • To evaluate the advantages of metal microcapsules over polymeric ones.

Main Methods:

  • Microencapsulation of a diisocyanate liquid within a metal shell (<2 μm thick, <50 μm diameter).
  • Utilized a multi-step aqueous process at near room temperature.
  • Employed emulsification, interfacial polymerization, and electroless plating.

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Synthesizing Sodium Tungstate and Sodium Molybdate Microcapsules via Bacterial Mineral Excretion
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Microfluidic Fabrication of Core-Shell Microcapsules carrying Human Pluripotent Stem Cell Spheroids
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Microfluidic Fabrication of Core-Shell Microcapsules carrying Human Pluripotent Stem Cell Spheroids

Published on: October 13, 2021

Related Experiment Videos

Last Updated: May 23, 2026

Preparation of Cross-Linked Sodium Alginate Microspheres with Different Metal Ions Using the Microfluidic Electrospray Technology
07:24

Preparation of Cross-Linked Sodium Alginate Microspheres with Different Metal Ions Using the Microfluidic Electrospray Technology

Published on: June 7, 2024

Synthesizing Sodium Tungstate and Sodium Molybdate Microcapsules via Bacterial Mineral Excretion
08:53

Synthesizing Sodium Tungstate and Sodium Molybdate Microcapsules via Bacterial Mineral Excretion

Published on: January 30, 2018

Microfluidic Fabrication of Core-Shell Microcapsules carrying Human Pluripotent Stem Cell Spheroids
10:51

Microfluidic Fabrication of Core-Shell Microcapsules carrying Human Pluripotent Stem Cell Spheroids

Published on: October 13, 2021

Main Results:

  • Successfully created liquid-filled metal microcapsules.
  • The metal shell provides improved mechanical properties.
  • Enhanced barrier properties against gases and organic molecules were observed.

Conclusions:

  • Metal microencapsulation is a viable alternative to polymeric methods for sensitive chemicals.
  • The developed technique offers improved protection and performance.
  • This method holds promise for various industrial applications requiring stable chemical delivery.