Size fractionation of metal nanoparticles by membrane filtration

Ariya Akthakul, Allon I. Hochbaum, Francesco Stellacci, Anne M. Mayes

Research output: Contribution to journalArticlepeer-review


The use of thin film composite nanofiltration (NF) membrane incorporating a self-assembling graft copolymer with hydrophilic poly(vinylidene fluoride) (PVDF) backbone and hydrophilic poly(oxyethylene methacrylate) (POEM) side chain for size fractionation of metal nanoparticles was discussed. Phase separation of the backbone and side chains results in the creation of bicontinuos structure with uniformly sized nanoscale channels of poly(ethylene oxide) (PEO) for size control transport. The size control transport was surrounded by a semicrystalline PVDF hydrophobic matrix for structural support. The results show that the PVDF ultrafiltration membrane were used to fractionate monolayer-protected Au nanoparticles.

Original languageEnglish
Pages (from-to)532-535
Number of pages4
JournalAdvanced Materials
Issue number5
Publication statusPublished - Mar 8 2005

ASJC Scopus subject areas

  • Materials Science(all)


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