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Related Experiment Video

Updated: Feb 11, 2026

Caenorhabditis Sieve: A Low-tech Instrument and Methodology for Sorting Small Multicellular Organisms
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Self-Assembling Sieves.

Tomas Szabo1, Brendan M O'Leary2, Julius Rebek1

  • 1The Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037 (USA), Fax: (+1) 619-7842876.

Angewandte Chemie (International Ed. in English)
|May 2, 2018
PubMed
Summary
This summary is machine-generated.

Researchers developed a modular strategy to create large, self-assembling capsules. These porous structures can trap large molecules while allowing small solvents to pass through.

Keywords:
Host-guest chemistryHydrogen bondsSelf-assemblySupramolecular chemistry

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Area of Science:

  • Supramolecular Chemistry
  • Materials Science

Background:

  • Self-assembling capsules offer potential for molecular encapsulation.
  • Designing porous materials with selective permeability is a key challenge.

Purpose of the Study:

  • To develop a modular synthesis for large, porous, self-assembling capsules.
  • To investigate the encapsulation capabilities of these novel structures.

Main Methods:

  • Utilized a modular strategy for synthesis.
  • Coupled tricyclic building blocks with glycoluril hydrogen-bonding units and triethylbenzene derivatives.
  • Formed homo- and heterodimeric monomeric assemblies.

Main Results:

  • Successfully synthesized large, porous, self-assembling capsules.
  • Demonstrated the ability to trap large guest molecules within the capsules.
  • Confirmed free passage of small solvent molecules through the capsule pores.

Conclusions:

  • The modular synthesis provides an effective route to advanced self-assembling capsules.
  • These capsules exhibit selective permeability, enabling size-based molecular trapping.
  • The findings open avenues for applications in separation and delivery systems.