Abstract
Most practical materials are held together by covalent bonds, which are irreversible. Materials based on noncovalent interactions can undergo reversible self-assembly, which offers advantages in terms of fabrication, processing and recyclability, but the majority of noncovalent systems are too fragile to be competitive with covalent materials for practical applications, despite significant attempts to develop robust noncovalent arrays. Here, we report nanostructured supramolecular membranes prepared from fibrous assemblies in water. The membranes are robust due to strong hydrophobic interactions, allowing their application in the size-selective separation of both metal and semiconductor nanoparticles. A thin (12 μm) membrane is used for filtration (∼5 nm cutoff), and a thicker (45 μm) membrane allows for size-selective chromatography in the sub-5 nm domain. Unlike conventional membranes, our supramolecular membranes can be disassembled using organic solvent, cleaned, reassembled and reused multiple times.
| Original language | English |
|---|---|
| Pages (from-to) | 141-146 |
| Number of pages | 6 |
| Journal | Nature Nanotechnology |
| Volume | 6 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - Mar 2011 |
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ASJC Scopus subject areas
- Bioengineering
- Biomedical Engineering
- Materials Science(all)
- Electrical and Electronic Engineering
- Condensed Matter Physics
- Atomic and Molecular Physics, and Optics
Cite this
A recyclable supramolecular membrane for size-selective separation of nanoparticles. / Krieg, Elisha; Weissman, Haim; Shirman, Elijah; Shimoni, Eyal; Rybtchinski, Boris.
In: Nature Nanotechnology, Vol. 6, No. 3, 03.2011, p. 141-146.Research output: Contribution to journal › Article
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TY - JOUR
T1 - A recyclable supramolecular membrane for size-selective separation of nanoparticles
AU - Krieg, Elisha
AU - Weissman, Haim
AU - Shirman, Elijah
AU - Shimoni, Eyal
AU - Rybtchinski, Boris
PY - 2011/3
Y1 - 2011/3
N2 - Most practical materials are held together by covalent bonds, which are irreversible. Materials based on noncovalent interactions can undergo reversible self-assembly, which offers advantages in terms of fabrication, processing and recyclability, but the majority of noncovalent systems are too fragile to be competitive with covalent materials for practical applications, despite significant attempts to develop robust noncovalent arrays. Here, we report nanostructured supramolecular membranes prepared from fibrous assemblies in water. The membranes are robust due to strong hydrophobic interactions, allowing their application in the size-selective separation of both metal and semiconductor nanoparticles. A thin (12 μm) membrane is used for filtration (∼5 nm cutoff), and a thicker (45 μm) membrane allows for size-selective chromatography in the sub-5 nm domain. Unlike conventional membranes, our supramolecular membranes can be disassembled using organic solvent, cleaned, reassembled and reused multiple times.
AB - Most practical materials are held together by covalent bonds, which are irreversible. Materials based on noncovalent interactions can undergo reversible self-assembly, which offers advantages in terms of fabrication, processing and recyclability, but the majority of noncovalent systems are too fragile to be competitive with covalent materials for practical applications, despite significant attempts to develop robust noncovalent arrays. Here, we report nanostructured supramolecular membranes prepared from fibrous assemblies in water. The membranes are robust due to strong hydrophobic interactions, allowing their application in the size-selective separation of both metal and semiconductor nanoparticles. A thin (12 μm) membrane is used for filtration (∼5 nm cutoff), and a thicker (45 μm) membrane allows for size-selective chromatography in the sub-5 nm domain. Unlike conventional membranes, our supramolecular membranes can be disassembled using organic solvent, cleaned, reassembled and reused multiple times.
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U2 - 10.1038/nnano.2010.274
DO - 10.1038/nnano.2010.274
M3 - Article
VL - 6
SP - 141
EP - 146
JO - Nature Nanotechnology
JF - Nature Nanotechnology
SN - 1748-3387
IS - 3
ER -