MiNa Faculty Member

• View

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 web: http://www.mech.ubc.ca/~stoeber/ Email: Education Ph.D. 2002, University of California, Berkeley, U.S.A. Dipl.-Ing. 1998, Technische Universität Darmstadt, Germany Diplome 1998, Ecole Centrale de Lyon, France Research Interests MEMS - Microfabrication Technology - System Integration Microflow Phenomena - Flow Control in Microfluidic Devices - Microflow Characterization Methods - Complex Microflows . - Multi-phase microflows . - Thermally responsive fluids Sensor Technology - Biomedical Sensor Applications - Sensors for Environmental Control Courses

Group Members: 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 Alumni: 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.

Research Projects

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)

2012

Robert Busch, Christoph Sielmann, Gabriel Man, Derek Tsan, Konrad Walus, Boris Stoeber, "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. Tagged XML BibTex

Iman Mansoor, Urs Häfeli, Boris Stoeber, "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. Abstract Tagged XML BibTex

Reynald Hoskinson, Stefan Hampl, Boris Stoeber, "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. Abstract Tagged XML BibTex

2011

Iman Mansoor, Urs O. Häfeli, Boris Stoeber, "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. Tagged XML BibTex

Jonas Flueckiger, Vahid Bazargan, Boris Stoeber, Karen Cheung, "Characterization of postfabricated parylene C coatings inside PDMS microdevices", Sensors and Actuators B: Chemical , vol. 160, issue 1: Elsevier, pp. 864-874, 12/2011. Tagged XML BibTex

Urs O. Häfeli, Mary H. H. Ensom, T. K. L. Kiang, Boris Stoeber, B. Chua, M. Pudek, "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. Tagged XML BibTex

Allison Schaap, Winnie C. Chu, Boris Stoeber, "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. Abstract Tagged XML BibTex

Neville Dubash, Ian A. Frigaard, Boris Stoeber, "An oscillatory instability in microchannel flows of thermally responsive fluids", Journal of Engineering Mathematics , vol. 71, issue 1, pp. 31-53, 08/2011. Abstract Tagged XML BibTex

Iman Mansoor, Boris Stoeber, "PIV measurements of flow in drying polymer solutions during solvent casting", Experiments in Fluids, vol. 50, issue 5, pp. 1409-1420, 05/2011. Abstract Tagged XML BibTex

Raghu Devendra, Boris Stoeber, German Drazer, "Microfabrication Of Anisotropic Media For Particle Separation Devices", 23rd Canadian Congress of Applied Mechanics, Vancouver, BC, Canada, 05/06/2011. Tagged XML BibTex

Silvio Dutz, Mike Hayden, Allison Schaap, Boris Stoeber, Urs O. Häfeli, "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. Tagged XML BibTex

Vahid Bazargan, Boris Stoeber, "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. Tagged XML BibTex

2010

Reynald Hoskinson, Boris Stoeber, Wolfgang Heidrich, Sidney Fels, "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. Abstract Tagged XML BibTex

Farid Khan, Farrokh Sassani, Boris Stoeber, "Copper foil-type vibration-based electromagnetic energy harvester", Journal of Micromechanics and Microengineering, vol. 20, issue 12, pp. 11, 12/2010. Abstract Tagged XML BibTex

Farid Khan, Farrokh Sassani, Boris Stoeber, "Vibration-based electromagnetic energy harvester", proceedings ASME 2010 International Mechanical Engineering Congress & Exposition , 11/2010. Tagged XML BibTex

Benjamin Mustin, Boris Stoeber, "Deposition of particles from polydisperse suspensions in microfluidic systems", Microfluidics and Nanofluidics, vol. 9, issue 4-5, pp. 905-913, 10/2010. Abstract Tagged XML BibTex

V. Bazargan, B. Stoeber, "Flow control using a thermally actuated microfluidic relay valve", Journal of Microelectromechanical Systems , vol. 19, issue 5: ASME/IEEE, pp. 1079-1087, 10/2010. Abstract Tagged XML BibTex

Allison Schaap, Winnie C. Chu, Miguel I. Antonio, Boris Stoeber, "Microchannel-based Size Detector for Airborne Particles", IEEE Sensors 2010 Conference, 1/11/2010. Tagged XML BibTex

Farid Khan, Farrokh Sassani, Boris Stoeber, "Vibration-based PDMS membrane type electromagnetic power generator for low vibration environments", Proceedings of CSME forum 2010, 06/2010. Tagged XML BibTex

Urs Hafeli, Ktayoun Saatchi, Philipp Elischer, Ripen Misri, Mehrdad Bokharaei, Renee Labiris, Boris Stoeber, "Lung Perfusion Imaging with Monosized Biodegradable Microspheres", Biomacromolecules, vol. 11, issue 3: ACS Publications, pp. 561-567, 03/2010. Tagged XML BibTex

Ramin S. Sahebjavaher, Konrad Walus, Boris Stoeber, "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. Abstract Tagged XML BibTex

2009

Ramin S. Sahebjavaher, Boris Stoeber, Konrad Walus, "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. Abstract Tagged XML BibTex

U. Häfeli, A. Mokhtari, D. Liepmann, B. Stoeber, "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. Abstract Tagged XML BibTex

Gabriel Man, Boris Stoeber, Konrad Walus, "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. Abstract Tagged XML BibTex

Raja K. Sivamani, Boris Stoeber, Dorian Liepmann, Howard I. Maibach, "Microneedle penetration and injection past the stratum corneum in humans ", Journal of Dermatological Treatment, vol. 20, issue 3, pp. 156-159, 05/2009. Abstract Tagged XML BibTex

Lance Kersey, Vincent Ebacher, Vahid Bazargan, Rizhi Wang, Boris Stoeber, "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. Abstract Tagged XML BibTex

2008

V. Bazargan, B. Stoeber, "Formation of temporary separating walls in microfluidic devices", the 6th ASME International Conference on Nanochannels, Microchannels, and Minichannels, Darmstadt, Germany, 23/06/2008. Abstract Tagged XML BibTex

B. Mustin, B. Stoeber, "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. Abstract Tagged XML BibTex

R. Hoskinson, S. Hampl, B. Stoeber, "High-contrast projection technology based on an analog MEMS mirror array", TEXPO, CMC Microsystems 2008 Annual Symposium, Ottawa, Ont., Canada, 14/10/2008. Tagged XML BibTex

Vahid Bazargan, Boris Stoeber, "Moving temporary wall in microfluidic devices", Physical Review E, vol. 78, issue 6, pp. 4, 12/2008. Abstract Tagged XML BibTex

R. Hoskinson, B. Stoeber, "High-Dynamic Range Image Projection using an auxiliary MEMS mirror array", Optics Express, vol. 16, issue 10, pp. 7361-7368, 05/2008. Abstract Tagged XML BibTex

S. Hampl, D. Buescher, R. Hoskinson, B. Stoeber, "A deformable micromirror for selective illumination", 1st Pacific Northwest Microsystems and Nanotechnology Meeting (PANOMINO), Friday Harbor, WA, U.S.A., 03/09/2008. Abstract Tagged XML BibTex

2007

Gabriel Man, Aryan Navabi, Tony Raymond, Boris Stoeber, Konrad Walus, "Polymer-Based Chemical Sensors for Clandestine Lab Detection", CMC Workshop on MEMS and Microfluidics, Montreal, Quebec, 13/08/2007. Tagged XML BibTex

Reynald Hoskinson, Iman Mansoor, Boris Stoeber, "Submirror Pixels for Large Scan Angle Micromirror Arrays", Canadian Workshop on MEMS and Microfluidics, Montreal, Quebec, 13/08/2007. Tagged XML BibTex

K. Wolf, B. Stoeber, T. Sattel, "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. Abstract Tagged XML BibTex

V. Bazargan, B. Stoeber, "Thermally triggered modulation of flow channel geometry and layout", MicroTAS 2007, Paris, France, 07/10/2007. Tagged XML BibTex

B. Stoeber, D. Liepmann, S.J. Muller, "Strategy for active mixing in microdevices", Physical Review E, vol. 75: Americal Physical Society, pp. 4, 06/2007. Abstract Tagged XML BibTex

R. Hoskinson, I. Mansoor, B. Stoeber, "High Mechanical Bandwidth Polysilicon Micromirrors for Large Area / High Deflection Angle Micromirror Arrays", 20th IEEE Canada CCECE 2007, Vancouver, BC, Canada, 01/04/2007. Tagged XML BibTex

2006

B. Stoeber, C.-M. Hu, D. Liepmann, S. J. Muller, "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. Abstract Tagged XML BibTex

2005

B. Stoeber, D. Liepmann, "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. Abstract Tagged XML BibTex

R. K. Sivamani, B. Stoeber, G. C. Wu, H. Zhai, D. Liepmann, H. Maibach, "Clinical microneedle injection of methyl nicotinate: stratum corneum penetration", Skin Research and Technology, vol. 11, pp. 152-156, 05/2005. Abstract Tagged XML BibTex

B. Stoeber, Z. Yang, D. Liepmann, S.J. Muller, "Flow Control in Microdevices using Thermally-Responsive Triblock Copolymers", Journal of Microelectromechanical Systems, vol. 14, issue 2: ASME/IEEE, pp. 207-213, 04/2005. Abstract Tagged XML BibTex

History

Blog

View recent blog entries

Member for

6 years 2 weeks