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Research Article

Organosilane Self-Assembled Monolayer Growth from Supercritical Carbon Dioxide in Microstructured Optical Fiber Capillary Arrays

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Mehmet F. Danışman,^†^‡ Jacob A. Calkins,^† Pier J. A. Sazio,^§ David L. Allara,*^† and John V. Badding*^†

Department of Chemistry, Pennsylvania State University, University Park, Pennsylvania 16802, and Optoelectronics Research Centre, University of Southampton, Southampton, S0171BJ, UK

Langmuir, 2008, 24 (7), pp 3636–3644

DOI: 10.1021/la703155z

Publication Date (Web): February 27, 2008

Abstract

Microstructured optical fibers form a new class of extreme aspect ratio templates that are well-suited for precise, designed spatial organization of materials and molecules at dimensions down to the nanoscale. The extreme aspect ratios of the nanoscale to microscale pores in the templates necessitates new approaches to fabrication of nanowires, nanotubes, and self-assembled monolayers within them. High-pressure fluids, which have lower viscosities than liquids and no surface tension, are well-suited for penetrating such extreme aspect ratio capillaries. Here we report an approach to fabricating self-assembled monolayers within microstructured optical fibers using near supercritical or supercritical carbon dioxide. An AFM-based “shaving” technique has been developed to characterize the monolayers formed in capillaries that are too small to allow for characterization by conventional approaches.

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This article has been cited by 2 ACS Journal articles (2 most recent appear below).

Spontaneous Waveguide Raman Spectroscopy of Self-Assembled Monolayers in Silica Micropores
Jacob A. Calkins, Anna C. Peacock, Pier J. A. Sazio, David L. Allara, and John V. Badding
Langmuir2011 27 (2), 630-636
- Spontaneous Waveguide Raman Spectroscopy of Self-Assembled Monolayers in Silica Micropores
  Jacob A. Calkins, Anna C. Peacock, Pier J. A. Sazio, David L. Allara, and John V. Badding
  Langmuir2011 27 (2), 630-636
  Advances in nanoscience are critically dependent on the ability to control and probe chemical and physical phenomena in confined geometries. A key challenge is to identify confinement structures with high surface area to volume ratios and controlled ...
  Abstract | Full Text HTML | Hi-Res PDF | PDF w/ Links
Evidence of Self-Assembled Monolayers Preorganization Prior to Surface Contact: a First Principles Study
Jean-Marie Ducéré, Alain Estève, Ahmed Dkhissi, Mehdi Djafari Rouhani and Georges Landa
The Journal of Physical Chemistry C2009 113 (35), 15652-15657
- Evidence of Self-Assembled Monolayers Preorganization Prior to Surface Contact: a First Principles Study
  Jean-Marie Ducéré, Alain Estève, Ahmed Dkhissi, Mehdi Djafari Rouhani and Georges Landa
  The Journal of Physical Chemistry C2009 113 (35), 15652-15657
  We explore the main gas and liquid phase chemistry that governs the typical self assembled monolayers (SAMs) deposition processes before precursors interaction with the surface. A number of pathways are determined (enthalpies and associated activation ...
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