Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Reid A. Brennen"'
Autor:
Reid A. Brennen, Andriy Tsupryk, Roland Zengerle, Varun Raghunathan, Karsten Kraiczek, John T. Mannion, Susan Post
Publikováno v:
Analytical Chemistry. 88:1100-1105
A planar, chip-based flow cell for UV-vis absorbance detection in HPLC is presented. The device features a microfabricated free-standing liquid core waveguide (LCW) capillary detection tube of long path length that is based on total internal reflecti
Publikováno v:
Analytical Chemistry. 77:527-533
Current nano-LC/MS systems require the use of an enrichment column, a separation column, a nanospray tip, and the fittings needed to connect these parts together. In this paper, we present a microfabricated approach to nano-LC, which integrates these
Autor:
Gary B. Gordon, Bruce P. Mosier, Joshua I. Molho, Bijan Mohammadi, Thomas W. Kenny, Reid A. Brennen and, and Juan G. Santiago, Amy E. Herr
Publikováno v:
Analytical Chemistry. 73:1350-1360
Chip-based microcolumn separation systems often require serpentine channels to achieve longer separation lengths within a compact area. However, analyte bands traveling through curved channels experience an increased dispersion that can reduce the be
Publikováno v:
Journal of separation science. 32(20)
Polyimide HPLC-Chip devices containing poly(methylstyrene-bis-p-vinylphenyl)ethane (MS/BVPE) stationary phase within the device channels and with wall attachment were prepared by thermally initiated free radical polymerization. The microfluidic devic
Autor:
Frantisek Svec, Pavel A. Levkin, Karla M. Robotti, Sebastiaan Eeltink, Hongfeng Yin, Jean M. J. Fréchet, Thomas R. Stratton, Kevin Killeen, Reid A. Brennen
Poly(lauryl methacrylate-co-ethylene dimethacrylate) and poly(styrene-co-divinylbenzene) stationary phases in monolithic format have been prepared by thermally initiated free radical polymerization within polyimide chips featuring channels having a c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9a96b8718b6a8360679d20946e7d5eea
https://europepmc.org/articles/PMC2518059/
https://europepmc.org/articles/PMC2518059/
Publikováno v:
Analytical chemistry. 79(24)
We report a method for forming a nanoflow liquid chromatography (nano-LC) gradient using a single fluid pump at flow rates below 1 muL/min by passively forming a gradient on a microfluidic device. This device works together with an Agilent HPLC-Chip
Autor:
Hongfeng Yin, Sharmila Udiavar, Kevin Killeen, Mark Juanitas, Tom van de Goor, Dan Sobek, Reid A. Brennen, Elaine Poon
Publikováno v:
Micro Total Analysis Systems 2001 ISBN: 9789401038935
We report the use of direct write UV laser ablation to create microstructures in polymer film substrates. An integrated chip-MS device is fabricated combining a microfluidic channel with an electrospray tip. Mass spectral data is presented demonstrat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4289754527e867a359ce2b1880bb84df
https://doi.org/10.1007/978-94-010-1015-3_141
https://doi.org/10.1007/978-94-010-1015-3_141
Autor:
Thomas W. Kenny, Bruce P. Mosier, Gary B. Gordon, Joshua I. Molho, Reid A. Brennen, Amy E. Herr, Juan G. Santiago
Publikováno v:
Micro Total Analysis Systems 2000 ISBN: 9789048154968
Recent studies have shown that serpentine microchannels intended to increase the separation efficiency of electrophoresis on microchips may actually decrease efficiency due to band broadening in the corners. We have designed and tested a compensating
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::02361396631ff175f89c2a30aaae9ec7
https://doi.org/10.1007/978-94-017-2264-3_65
https://doi.org/10.1007/978-94-017-2264-3_65
Autor:
William D. Bonivert, T. D. Stowe, Thomas W. Kenny, Dean V. Wiberg, Steven Manion, Marcus L. Scholz, Chantal G. Khan Malek, Michael H. Hecht, Keith H. Jackson, Jill M. Hruby, Reid A. Brennen
Publikováno v:
SPIE Proceedings.
We are fabricating sub-collimating X-ray grids that are to be used in an instrument for the High Energy Solar Spectroscopic Imager (HESSI), a proposed NASA mission. The HESSI instrument consists of twelve rotating pairs of high aspect ratio, high Z g
Autor:
Reid A. Brennen, Jill M. Hruby, William D. Bonivert, Dean V. Wiberg, Michael H. Hecht, Ezekiel Kruglick, Steven Manion, Kristofer S. J. Pister
Publikováno v:
SPIE Proceedings.
We have developed fine pitch, sub-collimating X-ray grids for an instrument in the High Energy Solar Spectroscopic Imager (HESSI), a proposed NASA mission. In addition to high- energy X-rays, the instrument requires collimation of photons with energi