- 17.04.13
Rocio Aranda-Rodriguez, Walid Hassen, Alexander S. Wahba, Ashley Cabecinha,, Maria DeRosa, Jan J. Dubowski, “Determination of microcystins using aptamer-surface plasmon resonance sensor”, poster presentation at […]
- 01.02.13
J.J. Dubowski, “Photon-based BioNanotechnology“, presentation at the Evénement de maillage, LyonBiopôle, Lyon, France, 15-16 November, 2012.
- 01.02.13
J.J. Dubowski, invited seminar at the Gwangju Institute of Science and Technology (GIST), Gwangju, Korea, “Nanotechnology of GaAs-based microstructures for biosensing applications“, 23 October, 2012.
- 01.02.13
J.J. Dubowski, N. Liu, Kh. Moumanis, S. Blais, Suzie Poulin, invited seminar at the Zhejiang University, Hangzhou, China, “Chemical evolution of InP surfaces and […]
- 01.02.13
R. Beal, N. Liu, Kh. Moumanis, V. Aimez, J.J. Dubowski, “Quantum Well Intermixing by UV Lasers and IR Laser Rapid Thermal Annealing“, poster presentation at […]
- 01.02.13
G.M. Marshall, F. Bensebaa, J.J. Dubowski, “Interfacial analysis of n-alkanethiol self-assembled monolayers on GaAs(001) by angle-resolved x-ray photoelectron spectroscopy“, 34th Annual Symposium on Applied Surface […]
- 01.02.13
J.J. Dubowski and N. Liu, “Bandgap nano-engineering of InGaAs/InGaAsP/InP heterostructures using ArF and KrF excimer lasers“, invited talk, 13th International Symposium on Laser Precision Microfabrication, […]
- 10.10.12
R. Béal, N. Liu, Kh. Moumanis, V. Aimez, J.J. Dubowski, “Quantum well intermixing by UV lasers and IR laser rapid thermal annealing”, Poster presentation at […]
- 10.10.12
G.M. Marshall, F. Bensebaa, J.J. Dubowski, “Interfacial analysis of n-alkanethiol self-assembled monolayers on GaAs(001) by angle-resolved x-ray photoelectron spectroscopy”, 34th Annual Symposium on Applied Surface […]
- 10.10.12
J.J. Dubowski and N. Liu, “Bandgap nano-engineering of InGaAs/InGaAsP/InP heterostructures using ArF and KrF excimer lasers”, invited talk, 13th International Symposium on Laser Precision Microfabrication, […]
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In a paper by V. Duplan et al., J. Biomed. Optics 14(5), 054042 (2009), we report on the successful immobilization of the influenza A virus on the biofunctionalized surface of GaAs (001). This result is an important milestone in our quest for the development of an all-optical biosensor for rapid detection and typing of viral pathogens. The device functions thanks to the strong photoluminescence emission generated by III-V quantum semiconductors (QS). One of...
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Alkanethiol self-assembled monolayers (SAMs) of various methylene group chain lengths [HS–(CH2)n–CH3 (n=9,11,13,15,17) were fabricated on the GaAs(001) surface followed by characterization using Fourier transform infrared spectroscopy [G. Marshall et al., J. Appl. Phys. 105, 094310 (2009)]. Modal analysis of the CH2 stretching mode region (2800–3000 cm-1) showed that linear scaling of the n-dependent factors accurately reproduced the spectral data, supporting a chain-length consistent physical model upon which a measurement of the absorption coefficient…
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We have proposed [D. Lepage and J.J. Dubowski, Opt. Express 17(12), 10411 (2009)] an innovative microstructure for a monolithically integrated surface plasmon resonance (SPR) device comprising a metal coated SiO2 layer deposited atop a photoluminescence emitting quantum well (QW) wafer. The functioning of such a device is based on the uncollimated and incoherent emission of semiconductors. We discuss the results of our calculations aimed at the description of SPs coupling in QW semiconductor-based SPR architectures…
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The Honourable Gary Goodyear, Minister of State for Science and Technology, announced on April 30, 2009 in Ottawa the selection of the inaugural 55 recipients of the new Vanier Canada Graduate Scholarships-the most important, prestigious and sought-after scholarships for doctoral students. The Vanier Canada Graduate Scholarship Program supports world-class doctoral students who demonstrate a high standard of scholarly achievement in graduate studies in social sciences and humanities, science and…
AFM image of E. coli on the antibody functionalized surface of a QS biosensor
For more details, see V. Duplan et al. 2011.
Influenza A virus immobilized specifically on the GaAs (001) surface
For more details, see V. Duplan et al.
Surface Plasmon Resonance (SPR) and H1N1 Pandemic Influenza
For more details, see the complete article
Alkanethiol adsorption process on GaAs Click on the image to see a physisorption to chemisorption transition
For more details, see O. Voznyy project
Electric field landscape in the vicinity of a dielectric and metal coated PL emitting Quantum Well microstructure
For more details, see D. Lepage project
