Retention in porous layer pillar array planar separation platforms
Abstract
Here, this work presents the retention capabilities and surface area enhancement of highly ordered, high-aspect-ratio, open-platform, two-dimensional (2D) pillar arrays when coated with a thin layer of porous silicon oxide (PSO). Photolithographically prepared pillar arrays were coated with 50–250 nm of PSO via plasma-enhanced chemical vapor deposition and then functionalized with either octadecyltrichlorosilane or n-butyldimethylchlorosilane. Theoretical calculations indicate that a 50 nm layer of PSO increases the surface area of a pillar nearly 120-fold. Retention capabilities were tested by observing capillary-action-driven development under various conditions, as well as by running one-dimensional separations on varying thicknesses of PSO. Increasing the thickness of PSO on an array clearly resulted in greater retention of the analyte(s) in question in both experiments. In culmination, a two-dimensional separation of fluorescently derivatized amines was performed to further demonstrate the capabilities of these fabricated platforms.
- Authors:
-
- Univ. of Tennessee, Knoxville, TN (United States)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Publication Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1324194
- Grant/Contract Number:
- AC05-00OR22725
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Analytical Chemistry
- Additional Journal Information:
- Journal Volume: 88; Journal Issue: 17; Journal ID: ISSN 0003-2700
- Publisher:
- American Chemical Society (ACS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Citation Formats
Lincoln, Danielle R., Lavrik, Nickolay V., Kravchenko, Ivan I., and Sepaniak, Michael J. Retention in porous layer pillar array planar separation platforms. United States: N. p., 2016.
Web. doi:10.1021/acs.analchem.6b02079.
Lincoln, Danielle R., Lavrik, Nickolay V., Kravchenko, Ivan I., & Sepaniak, Michael J. Retention in porous layer pillar array planar separation platforms. United States. https://doi.org/10.1021/acs.analchem.6b02079
Lincoln, Danielle R., Lavrik, Nickolay V., Kravchenko, Ivan I., and Sepaniak, Michael J. Thu .
"Retention in porous layer pillar array planar separation platforms". United States. https://doi.org/10.1021/acs.analchem.6b02079. https://www.osti.gov/servlets/purl/1324194.
@article{osti_1324194,
title = {Retention in porous layer pillar array planar separation platforms},
author = {Lincoln, Danielle R. and Lavrik, Nickolay V. and Kravchenko, Ivan I. and Sepaniak, Michael J.},
abstractNote = {Here, this work presents the retention capabilities and surface area enhancement of highly ordered, high-aspect-ratio, open-platform, two-dimensional (2D) pillar arrays when coated with a thin layer of porous silicon oxide (PSO). Photolithographically prepared pillar arrays were coated with 50–250 nm of PSO via plasma-enhanced chemical vapor deposition and then functionalized with either octadecyltrichlorosilane or n-butyldimethylchlorosilane. Theoretical calculations indicate that a 50 nm layer of PSO increases the surface area of a pillar nearly 120-fold. Retention capabilities were tested by observing capillary-action-driven development under various conditions, as well as by running one-dimensional separations on varying thicknesses of PSO. Increasing the thickness of PSO on an array clearly resulted in greater retention of the analyte(s) in question in both experiments. In culmination, a two-dimensional separation of fluorescently derivatized amines was performed to further demonstrate the capabilities of these fabricated platforms.},
doi = {10.1021/acs.analchem.6b02079},
journal = {Analytical Chemistry},
number = 17,
volume = 88,
place = {United States},
year = {Thu Aug 11 00:00:00 EDT 2016},
month = {Thu Aug 11 00:00:00 EDT 2016}
}
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Works referencing / citing this record:
Surface Modification of Silicon Pillar Arrays To Enhance Fluorescence Detection of Uranium and DNA
journal, October 2017
- Lincoln, Danielle R.; Charlton, Jennifer J.; Hatab, Nahla A.
- ACS Omega, Vol. 2, Issue 10