Supergluing MOF liquid marbles

Abstract

Growth of NH(2)-MIL-53(Al) on alumina microparticles followed by post-synthetic modification with perfluorooctyl or caproic groups produces highly hydrophobic microparticles which are utilized for the formation of liquid marbles. Interfacial polymerization of ethyl-2-cyanoacrylate on the surface of the liquid marbles produces stable liquid capsules.

The Potential of Liquid Marbles for Biomedical Applications: A Critical Review

“…Other more complex and revolutionary co‐culture scheme can be to produce capsules with cells inside generated from LM. Specifically the idea is that LM spontaneously become capsules through a chemical or physical process that promotes the merging between the coating particles creating a membrane . Incubating different cell types on these capsules, a kind of “organoid” structures can be produced and the biochemical communication between them can be studied, ensuring that the capsule membrane is permeable to both nutrients and cellular metabolites.…”

“…“Organoids” produced with LM could be then cultured together in the same culture well or integrated in a fluidic system, following the same rationale of the “organ‐on‐a‐chip” . Chin et al already reported a process to produce stable liquid capsules from LM, promoting an interfacial polymerization by vaporization of ethyl‐2cyanoacrylate . Other works showed that the coating particles of LM can be part of chemical reactions happing inside of the marbles, performing a role as catalytic particles or reactive substrates .…”

Magnetic Poly(Ionic Liquid) Microcapsules for Oil Capture and Recovery

“…Typically, microcapsules are prepared by sintering or melting the micrograin particles of the liquid marble shell by exposing it to solvent vapors. Other methods of sintering liquid marbles have been reported such as the interfacial polymerization of ethyl‐2‐cyanoacrylate on the surface of liquid marbles and the thermal sintering of wax/FeO 4 liquid marbles …”

Stimuli‐Responsive Liquid Marbles: Controlling Structure, Shape, Stability, and Motion

“…It is also important to control the release kinetics of inner materials, i.e., as either a digital on/off signal or a slow release. Film formation on the liquid marble surfaces, which can be used to control the pore size in the shell, is expected to lead to slow release of inner liquid materials . It will also be useful to develop methods to apply the stimuli to liquid marbles.…”