Nano Archive

Preparation of ultrathin self-standing polyelectrolyte multilayer membranes at physiological conditions using pH-responsive film segments as sacrificial layers

Ono, SS and Decher, G (2006) Preparation of ultrathin self-standing polyelectrolyte multilayer membranes at physiological conditions using pH-responsive film segments as sacrificial layers. NANO LETTERS, 6 (4). pp. 592-598.

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Official URL: http://dx.doi.org/10.1021/nl0515504

Abstract

A new system to obtain ultrathin self-standing polyelectrolyte multilayer membranes at physiological conditions is introduced. On the surface of a substrate, a hybrid film structure composed of two compartments, (1) a pH-responsive film segment formed via hydrogen bonds and (2) a polyelectrolyte multilayer film on top of 1, was assembled. The pH-responsive polymer multilayer segments disintegrate at a neutral pH and release self-standing polyelectrolyte multilayer films. The obtained self-supporting polyelectrolyte multilayer membranes had thicknesses of 55 to several hundred nanometers and areas of a few square centimeters, approximately. The preparation method introduced here avoids harsh release conditions and thus broadens the choice of materials that can be incorporated into the self-standing film.

Item Type:Article
Subjects:Material Science > Nanofabrication processes and tools
Material Science > Nanostructured materials
ID Code:3820
Deposited By:SPI
Deposited On:22 Jan 2009 09:56
Last Modified:22 Jan 2009 09:56

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