Size Fractionation of Metal Nanoparticles by Membrane Filtration

A novel thin film composite nanofiltration (NF) membrane is fabricated by coating a conventional ultrafiltration membrane with a self‐assembling amphiphilic graft copolymer. The NF membranes are used in the fractionation of gold nanoparticles to achieve a well‐defined particle cutoff diameter and re...

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Published inAdvanced materials (Weinheim) Vol. 17; no. 5; pp. 532 - 535
Main Authors Akthakul, A., Hochbaum, A. I., Stellacci, F., Mayes, A. M.
Format Journal Article
LanguageEnglish
Published Weinheim WILEY-VCH Verlag 08.03.2005
WILEY‐VCH Verlag
Subjects
Membranes
metal
Nanoparticles
Nanoparticles, metal
Self-assembly
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Summary:A novel thin film composite nanofiltration (NF) membrane is fabricated by coating a conventional ultrafiltration membrane with a self‐assembling amphiphilic graft copolymer. The NF membranes are used in the fractionation of gold nanoparticles to achieve a well‐defined particle cutoff diameter and reduced size dispersity (see Figure).
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The authors acknowledge Michael Frongillo at Massachusetts Institute of Technology (MIT) for his assistance with TEM. Financial support for this work is provided by the Office of Naval Research under grant no. N00014-02-1-0343 and by the National Science Foundation NIRT program grant no. DMR-0303973, and in part by the NSF MRSEC program under award no. DMR-0213282.
The authors acknowledge Michael Frongillo at Massachusetts Institute of Technology (MIT) for his assistance with TEM. Financial support for this work is provided by the Office of Naval Research under grant no. N00014‐02‐1‐0343 and by the National Science Foundation NIRT program grant no. DMR‐0303973, and in part by the NSF MRSEC program under award no. DMR‐0213282.
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ISSN:0935-9648
1521-4095
DOI:10.1002/adma.200400636