J Nanosci Nanotechnol. 2008 Nov;8(11):5781-6.

A simple method for the prevention of non-specific adsorption by nanocrystals onto surfaces.

Fernandez CA, Wiacek RJ, Nachimuthu P, Fryxell GE, Pierson AM, Warner CL, Warner MG, Addleman RS.

Source

Pacific Northwest National Laboratory, P.O. Box 999, Richland, WA 99352, USA.

Abstract

In this work we introduce an efficient method for averting non-specific adsorption of various nanoparticles to typical oxide surfaces, such as glass, quartz, and sapphire, through the attachment of a fluorinated self-assembled monolayer (SAM) that minimizes the interactions between stabilized nanoparticles and these surfaces. This surface treatment is shown to be effective for a variety of nanoparticles in a range of solvent systems. As a result, monitoring and characterization of nanoparticles and their surface chemistry is allowed, while simultaneously preventing loss of expensive nanomaterials to the various surfaces inherent in laboratory apparatus.

PMID:: 19198305; [PubMed - indexed for MEDLINE]

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