Organosilane self-assembled monolayer growth from supercritical carbon dioxide in microstructured optical fiber capillary arrays

Date

2008-04-01

Author

Danışman, Mehmet Fatih
Sazio, Pier J. A.
Allara, David L.
Badding, John V.

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

93
views

0
downloads

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.

Subject Keywords

Spectroscopy, Electrochemistry, General Materials Science, Surfaces and Interfaces, Condensed Matter Physics

URI

https://hdl.handle.net/11511/43032

Journal

LANGMUIR

DOI

https://doi.org/10.1021/la703155z

Collections

Department of Chemistry, Article

Suggestions

OpenMETU
Core

Design Parameters and Principles of Liquid-Crystal-Templated Synthesis of Polymeric Materials via Photolithography AKDENİZ, BURAK; Büküşoğlu, Emre (American Chemical Society (ACS), 2019-10-08) The design parameters and principles for the synthesis of polymeric microscopic objects using a method that combines photolithography and liquid crystal (LC) molecular templates have been demonstrated. Specifically, mixtures of a reactive mesogen (RM257) and nonreactive LC (E7) were polymerized using UV light and a photomask. We used photomasks with circular, triangular, rectangular, square, star-shaped, and heart-shaped features to provide initial shapes to the objects. Then, the unreacted parts were extra...
Circumferentially cracked bimaterial hollow cylinder under mechanical and transient thermal loading Kadıoğlu, Fevzi Suat (Informa UK Limited, 2006-12-01) The analytical solution for the problem of a circumferential inner surface crack in an elastic, infinitely long composite hollow cylinder, made of two concentric perfectly bonded transversely isotropic cylinders is considered. Uniform axial loading and thermal loading in the form of a sudden cooling on the inner boundary are considered. Out of 10 material parameters involved, two bimaterial parameters and three material parameters for each layer upon which the stress intensity factor depends under uniform l...
Molecular Mechanics and Molecular Dynamics Simulations of Carbon Based Nanogears Tasci, Emre; Erkoç, Şakir (American Scientific Publishers, 2009-04-01) A system containing two nanogears and two nanotubes acting as shafts is designed. Then, it is checked to see whether it is a stable one by means of the molecular mechanics simulation. After it was ensured that the system was suitable for consideration, molecular dynamics were applied but from the results it was observed that the selected potential was not appropriate by itself alone and reconsideration showed that improvements were to be made. This resulted in introduction of an additional potential and the...
Mechanical behaviour of Al2O3-ZrO2 minicomposite reinforced glass matrix optomechanical composite Dericioğlu, Arcan Fehmi (Informa UK Limited, 2003-08-01) To understand the effect of a 'mesh-structured reinforcement' on the optical and mechanical properties of optomechanical composites, a unidirectional Al2O3 fibre-ZrO2 matrix minicomposite reinforced glass matrix optomechanical composite has been fabricated. By regular alignment of the minicomposites in the glass matrix as part of the 'mesh structure' a high degree of optical transparency is obtained in the composite; this transparency is proportional to its 'optical window' regions. The mesh structured rein...
Optical anisotropy in GaSe Seyhan, A; Karabulut, O; Akınoğlu, Bülent Gültekin; Aslan, B; Turan, Raşit (Wiley, 2005-09-01) Optical anisotropy of the layer semiconductor GaSe has been studied by photoluminescence (PL) and Fourier Transform Infrared Spectroscopy (FTIR). The PL spectra are dominated by two closely positioned emission bands resulting from the free exciton and the bound exciton connected direct band edge of GaSe. Photoluminescence and transmission spectra of GaSe crystals have been measured for two cases in which the propagation vector k is perpendicular (k perpendicular to c) and parallel to the c-axis (k//c). Peak...

Citation Formats

M. F. Danışman, P. J. A. Sazio, D. L. Allara, and J. V. Badding, “Organosilane self-assembled monolayer growth from supercritical carbon dioxide in microstructured optical fiber capillary arrays,” LANGMUIR, pp. 3636–3644, 2008, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/43032.