MiNa Faculty Member
Dr. B. Stoeber
Department of Mechanical Engineering and
Department of Electrical and Computer Engineering
office: 3112 Kaiser
mail: 2054-6250 Applied Science Lane
University of British Columbia
Vancouver, B.C. V6T 1Z4, Canada
phone: 604 827-5907
FAX: 604 822-2403
Ph.D. 2002, University of California, Berkeley, U.S.A.
Dipl.-Ing. 1998, Technische Universität Darmstadt, Germany
Diplome 1998, Ecole Centrale de Lyon, France
- Microfabrication Technology
- System Integration
- Flow Control in Microfluidic Devices
- Microflow Characterization Methods
- Complex Microflows
. - Multi-phase microflows
. - Thermally responsive fluids
- Biomedical Sensor Applications
- Sensors for Environmental Control
- Ali Ahmadi, Visiting / Post-Doc student
- Suresha Kadukothanahally Mahadeva, Visiting / Post-Doc student
- Ehsan Khajeh, Visiting / Post-Doc student
- Anil Thilsted, Visiting / Post-Doc student
- Ashkan Babaie, Ph.D. student
- Vahid Bazargan, Ph.D. student
- Ron Linklater, Ph.D. student
- Iman Mansoor, Ph.D. student
- Benjamin Mustin, Ph.D. student
- Mani Jafari, M.Eng. student
- John Berring, M.A.Sc. student
- Kelly He, M.A.Sc. student
- Henry Ip, M.A.Sc. student
- Christoph Sielmann, M.A.Sc. student
- Derek Tsan, M.A.Sc. student
- Kaan Williams, M.A.Sc. student
- Nathan Wolfe, M.A.Sc. student
- Reza Tabanfar, B.A.Sc. student
- Leon Yuen, B.A.Sc. student
- Reynald Hoskinson, Ph.D.
- Farid Khan, Ph.D.
- Hamid Abdollahi, M.Eng.
- Thomas Fuss, M.Eng.
- Maik Holle, M.Eng.
- Delaram Abdollahzadeh, M.A.Sc.
- Daniel Buescher, M.A.Sc.
- Robert Busch, M.A.Sc.
- Stefan Hampl, M.A.Sc.
- Holger Knell, M.A.Sc.
- Gabriel Man, M.A.Sc.
- Benjamin Mustin, M.A.Sc.
- Ramin S. Sahebjavaher, M.A.Sc.
- Allison Schaap, M.A.Sc.
- Toni Schlicke, M.A.Sc.
- Jarich van der Molen, M.A.Sc.
- Iman Arbabian, B.A.Sc.
- Daniel Been, B.A.Sc.
- Patrick Davies, B.A.Sc.
- Philip Edgcumbe, B.A.Sc.
- Markus Engenhorst, B.A.Sc.
- Jeremy Hale, B.A.Sc.
- David Hung, B.A.Sc.
- Lance Kersey, B.A.Sc.
- Sofia Moreno, B.A.Sc.
- Liam Russell, B.A.Sc.
- Daryoush Saheb Javaher, B.A.Sc.
- Hannes Scheibe, B.A.Sc.
- Alexander Traut, B.A.Sc.
- Andrew Vince, B.A.Sc.
- Sijia Wang, B.A.Sc.
- Kevin Wang, B.A.Sc.
Printed Sensing Technology Our research group is developing a variety of sensing devices fabricated using inkjet printing. We are exploring physical and chemical sensing technology for applications in air quality monitoring, structural health monitoring, breath analysis, and other important applications. MRI Microflow Visualization The goal of this project is to design and construct a portable and cost effective magnetic resonance imaging (MRI) instrument that is capable of resolving features at microscale to image flow fields of complex fluids in capillary tubes. Microflow control technology We are developing technology for microflow control that is suitable for portable low-cost instruments. Building blocks are fully integratable devices including microvalves, micropumps and micromixers. Concerns are low power consumption, fast response time and low cost. Transport of colloids in microfluidic environments We design microfluidic environments for targeted investigations of colloid transport. Focus of this work are particle-particle interactions, as well as particle-wall interactions. This study will lead to design recommendations for robust microfluidic devices. Microneedles for Drug Delivery While silicon microneedles (see picture) are effective for drug delivery, the associated fabrication process is rather expensive. We are developing new manufacturing processes for batch fabrication of inexpensive microneedles. These devices will be designed for drug delivery and biosensing. Thermal Generation of Temporary Walls in Microchannels We develop a new mechanism for changing the architecture of microfluidic channels during device operation. Two co-streaming fluids are separated through a temporal wall using targeted gel formation inside a microfluidic channel. We derive explanations for this mechanism including scaling arguments for the wall thickness. Thermal Modulation of Microchannel Widths We develop methods for thermal modulation of the widths of microchannels during operation of microfluidic devices. This allows arbitrary modulation of the channel width after device fabrication so that flow rate and flow velocity can be set independently. Analog Large-Deflection Micromirror Arrays This project aims at developing arrays of micromirrors with high resonance frequencies and high tilt angles in all directions. The mirrors are actuated through electrostatic forces to reach continuous tilt angles. The mirrors are fabricated using multi user MEMS processes. Advanced Fabrication Techniques For Micro/Nano Structures We develop methods to enhance current microfabrication technologies. Focus of this work is on material functionality and user friendliness. High-Speed Micromirror Control Using An FPGA We are developing FPGA-base high-speed control for arrays of electrostatically driven micromirrors.
Journal Publications(Table View)In Press" Arrays of hollow out-of-plane microneedles made by metal electrodeposition onto solvent cast conductive polymer structures", Journal of Micromechanics and Microengineering, 05/2013.2012"Inkjet printed all-polymer flexural plate wave sensors", 25th Annual IEEE International Conference on Micro Electro Mechanical Systems (MEMS 2012), Paris, France, 29/01/2012."Hollow Out-of-Plane Polymer Microneedles Made by Solvent Casting for Transdermal Drug Delivery", Journal of Microelectromechanical Systems, vol. 21, issue 1: IEEE & ASME, pp. 44-52, 02/2012."Arrays of large-area, large-angle tip/tilt micromirrors for use in a high-contrast projector", Sensors and Actuators A: Physical, vol. 173, issue 1: Elsevier, pp. 172-179, 01/2012.2011"Arrays of solvent cast hollow out-of-plane polymer microneedles for drug delivery", Annual IEEE International Conference on Micro Electro Mechanical Systems (MEMS 2011), Cancun, Mexico, 23/01/2011."Characterization of postfabricated parylene C coatings inside PDMS microdevices", Sensors and Actuators B: Chemical , vol. 160, issue 1: Elsevier, pp. 864-874, 12/2011."Comparison of Vancomycin Concentrations in Blood and Interstitial Fluid: A Possible Model for Less Invasive Therapeutic Drug Monitoring", Clinical Chemistry and Laboratory Medicine , vol. 49, issue 12: De Gruyter, pp. 2123-2125, 12/2011."Continuous size-separation of airborne particles in a microchannel for aerosol monitoring", IEEE Sensors Journal , vol. 11, issue 11: IEEE, pp. 2790-2797, 11/2011."An oscillatory instability in microchannel flows of thermally responsive fluids", Journal of Engineering Mathematics , vol. 71, issue 1, pp. 31-53, 08/2011."PIV measurements of flow in drying polymer solutions during solvent casting", Experiments in Fluids, vol. 50, issue 5, pp. 1409-1420, 05/2011."Microfabrication Of Anisotropic Media For Particle Separation Devices", 23rd Canadian Congress of Applied Mechanics, Vancouver, BC, Canada, 05/06/2011."Fractionation of magnetic microspheres for magnetic drug targeting using Dean flow combined with a magnetic octupole on a chip", 15th International Conference on Miniaturized Systems for Chemistry and Life Sciences (µTAS 2011), Seattle, WA, U.S.A., 02/10/2011."Stream formation in hydrogels: microrivers on a chip", 15th International Conference on Miniaturized Systems for Chemistry and Life Sciences (µTAS 2011), Seattle, WA, U.S.A., 02/10/2011.2010"Light Reallocation for High Contrast Projection Using an Analog Micromirror Array", ACM Transactions on Graphics, vol. 29, issue 6: ACM Press, pp. art. no. 165 (10 pages), 15/12/2010."Copper foil-type vibration-based electromagnetic energy harvester", Journal of Micromechanics and Microengineering, vol. 20, issue 12, pp. 11, 12/2010."Vibration-based electromagnetic energy harvester", proceedings ASME 2010 International Mechanical Engineering Congress & Exposition , 11/2010."Deposition of particles from polydisperse suspensions in microfluidic systems", Microfluidics and Nanofluidics, vol. 9, issue 4-5, pp. 905-913, 10/2010."Flow control using a thermally actuated microfluidic relay valve", Journal of Microelectromechanical Systems , vol. 19, issue 5: ASME/IEEE, pp. 1079-1087, 10/2010."Microchannel-based Size Detector for Airborne Particles", IEEE Sensors 2010 Conference, 1/11/2010."Vibration-based PDMS membrane type electromagnetic power generator for low vibration environments", Proceedings of CSME forum 2010, 06/2010."Lung Perfusion Imaging with Monosized Biodegradable Microspheres", Biomacromolecules, vol. 11, issue 3: ACS Publications, pp. 561-567, 03/2010."Permanent magnet desktop magnetic resonance imaging system with microfabricated multiturn gradient coils for microflow imaging in capillary tubes", Review of Scientific Instruments , vol. 81, issue 2: American Institute of Physics, pp. 9, 02/2010.2009"Microfabricated multi-turn gradient coils for microscale flow imaging ", Solid-State Sensors, Actuators and Microsystems Conference, 2009. TRANSDUCERS 2009. International , Denver, CO, USA, IEEE Conferences , pp. 1570 - 1573 , 21/06/2009."In Vivo Evaluation of a Microneedle-Based Miniature Syringe for Intradermal Drug Delivery", Biomedical Microdevices , vol. 11, issue 5: Springer, pp. 943-950, 10/2009."An Assessment of Sensing Technologies for the Detection of Clandestine Methamphetamine Drug Laboratories", Forensic Science International , vol. 189, issue 1-3, pp. 1-13, 09/08."Microneedle penetration and injection past the stratum corneum in humans ", Journal of Dermatological Treatment, vol. 20, issue 3, pp. 156-159, 05/2009."The effect of adhesion promoter on the adhesion of PDMS to different substrate materials", Lab on a Chip, vol. 9, issue 7, pp. 1002-1004, 04/2009."Formation of Uniform Microspheres Using a Perforated Silicon Membrane: A Preliminary Study", ASME Journal of Medical Devices, vol. 3, no. 3, pp. 034503, 2009 .2008"Formation of temporary separating walls in microfluidic devices", the 6th ASME International Conference on Nanochannels, Microchannels, and Minichannels, Darmstadt, Germany, 23/06/2008."Design considerations for robust suspension-based microfluidic systems for biomedical applications", 14th IEEE International Mixed-Signals, Sensors, and Systems Test Workshop, Vanvouver, BC, Canada, 18/06/2008."High-contrast projection technology based on an analog MEMS mirror array", TEXPO, CMC Microsystems 2008 Annual Symposium, Ottawa, Ont., Canada, 14/10/2008."Moving temporary wall in microfluidic devices", Physical Review E, vol. 78, issue 6, pp. 4, 12/2008."High-Dynamic Range Image Projection using an auxiliary MEMS mirror array", Optics Express, vol. 16, issue 10, pp. 7361-7368, 05/2008."A deformable micromirror for selective illumination", 1st Pacific Northwest Microsystems and Nanotechnology Meeting (PANOMINO), Friday Harbor, WA, U.S.A., 03/09/2008.2007"Polymer-Based Chemical Sensors for Clandestine Lab Detection", CMC Workshop on MEMS and Microfluidics, Montreal, Quebec, 13/08/2007."Submirror Pixels for Large Scan Angle Micromirror Arrays", Canadian Workshop on MEMS and Microfluidics, Montreal, Quebec, 13/08/2007."The dynamic coupling and power flow in asymmetric piezoelectric bending actuators", Smart Materials and Structures, vol. 16, issue 6: Institute of Physics, pp. 2015-2025, 12/2007."Thermally triggered modulation of flow channel geometry and layout", MicroTAS 2007, Paris, France, 07/10/2007."Strategy for active mixing in microdevices", Physical Review E, vol. 75: Americal Physical Society, pp. 4, 06/2007."High Mechanical Bandwidth Polysilicon Micromirrors for Large Area / High Deflection Angle Micromirror Arrays", 20th IEEE Canada CCECE 2007, Vancouver, BC, Canada, 01/04/2007.2006"Passive flow control in microdevices using thermally responsive polymer solutions", Physics of Fluids, vol. 18, issue 5: American Institute of Physics, pp. 9, 06/2006.2005"Arrays of Hollow out-of-Plane Microneedles for Drug Delivery", Journal of Microelectromechanical Systems, vol. 14, issue 3: ASME/IEEE, pp. 472-479, 06/2005."Clinical microneedle injection of methyl nicotinate: stratum corneum penetration", Skin Research and Technology, vol. 11, pp. 152-156, 05/2005."Flow Control in Microdevices using Thermally-Responsive Triblock Copolymers", Journal of Microelectromechanical Systems, vol. 14, issue 2: ASME/IEEE, pp. 207-213, 04/2005.
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