Low temperature fusion of polymeric nanostructures using carbon dioxide

Yong Yang, Dehua Liu, Ly James Lee, David L. Tomasko

Research output: Contribution to conferencePaperpeer-review

Abstract

Low temperature assembly techniques are desirable for evolving polymer-based MEMS (MicroElectroMechanical Systems)/NEMS (NanoElectroMechanical Systems), especially for systems containing biomolecules and cells. By applying low pressure carbon dioxide, we are able to manipulate polymer chain mobility at the nanoscale far below the bulk glass transition temperature of polymers. Atomic force microscopy and neutron reflectivity studies reveal a pressure-tunable width of the surface rubbery layer. Guided by this phenomenon, we successfully demonstrate low temperature fusion of polymeric nanostructures with small compressive force. This biologically benign technique has potential for assembly of three-dimensional micro/nanoscale polymeric devices for biomedical applications.

Original languageEnglish
Pages14207
Number of pages1
StatePublished - Oct 2005
Event05AIChE: 2005 AIChE Annual Meeting and Fall Showcase - Cincinnati, OH, United States
Duration: 30 Oct 20054 Nov 2005

Conference

Conference05AIChE: 2005 AIChE Annual Meeting and Fall Showcase
Country/TerritoryUnited States
CityCincinnati, OH
Period30/10/054/11/05

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