MEMS Publications

Berkeley Microfluidics Laboratory

• Trebotich, D., Zahn, J. D. and Liepmann, D. (2002), "Complex Fluid Dynamics in BioMEMS Devices: Modeling of Microfabricated Microneedles," Technical Proceedings of the 2002 International Conference on Computational Nanoscienceand Nanotechnology, and Technical Proceedings of the Fifth International Conference on Modeling and Simulation of Microsystems, April 22-25, San Juan, Puerto Rico.
  Liepmann.plenary.MSM2002 conf.M21.02.pdf
  
  
• Chang W.C., Liepmann D, Lee LP. (2002). "Biomemetic Cell Sorting with Selectin Proteins," Proceedings of the Materials Research Society Volume 729, 2002 MRS Spring Meeting, April 1-5, San Francisco.
  
  
• Debar MJ and Liepmann D. (2002). "Fabrication and performance testing of a steady thermocapillary pump with no moving parts." Proceedings of the MEMS 2002 IEEE International Conference. Fifteenth IEEE International Conference on Micro Electro Mechanical Systems (Cat. No.02CH37266), 20-24 Jan. Las Vegas, NV, USA, 109-112.
  Debar.MEMS 2002.CD.pdf
  
  
• Stoeber, B. and D. Liepmann. "Design, fabrication, and Testing of a MEMS Syringe." Proceedings of Solid-State Sensor and Actuator Workshop. 2-7 June, 2002, Hilton Head Island, SC, Transducers Res. Found (TRF Cat. No.00TRF-0001).
  Stoeber.HiltonHead.2002.pdf
  
  
• Chang WC, Liepmann D, Lee LP. (2002). "A biomimetic method for extracting leukocytes from blood in microfluidic devices." Proceedings of the 2nd Annual International IEEE-EMBS Special Topic Conference on Microtechnologies in Medicine and Biology (Cat. No.02EX578), Madison, WI, 2-4 May 2002,184-8.
  Chang.separation.IEEE-EMBS02.pdf
  
  
• Shrewsbury, P.S., Liepmann, D., and Muller, S.J., (2002), "Concentration effects of a biopolymer in a microfluidic device," Biomedical Microdevices 4: 17-26.
  Shrewsbury.medmicro.2002
  
  
• Liepmann, D. (2001) "Design and Fabrication of a micro-CPL for Chip-Level Cooling," Proceedings of 2001 ASME International Mechanical Engineering Congress and Exposition November 11-16, 2001, New York, NY.
  Liepmann_ASME2001.pdf
  
  
• Stoeber, B., Eddie Español, E., and Liepmann, D.(2001) "Operational Limits of Suspension Flows through Sudden Contractions," Proceedings of 2001 ASME International Mechanical Engineering Congress and Exposition November 11-16, 2001, New York, NY.
  Stoeber.ASME2001.pdf
  
  
• Zahn J.D., DeshmukhA.A., Papavasiliou, A.P., Albert P. Pisano and Liepmann, D., (2001) "An Integrated Microfluidic Device for the Continuous Sampling and Analysis of Biological Fluids," Proceedings of 2001 ASME International Mechanical Engineering Congress and Exposition November 11-16, 2001, New York, NY.
  Zahn_ASME2001.pdf
  
  
• Fu, K., A.J. Knobloch, F.C. Martinez, D.C. Walter, C. Fernandez-Pello, A.P. Pisano, D. Liepmann, K. Miyasaka, and K. Maruta. "Design and experimental results of small-scale rotary engines." Proceedings of 2001 ASME International Mechanical Engineering Congress and Exposition. New York, NY, ASME, 41, pp. 295-302.
  MEMS Rotary Eng.IMECE01.pdf
  
  
• Fu, K., A.J. Knobloch, F.C. Martinez, D.C. Walther, C. Fernandez-Pello, A.P. Pisano, and D. Liepmann. "Design and fabrication of a silicon-based MEMS rotary engine." Proceedings of 2001 ASME International Mechanical Engineering Congress and Exposition. New York, NY, ASME, 41, pp. 303-308.
  MEMS Rotary Eng. 2.IMECE01.pdf
  
  
• Shrewsbury, P.S., Muller, S.J., and Liepmann, D.(2001), "Concentration effects of a biopolymer in a microfluidic device," Biomedical Microdevices 3(3) 225-238.
  Shrewsbury.medmicro.2001.pdf
  
  
• Deshmukh, A., Liepmann, D. and Pisano, A. P., (2001) "Characterization of a Micro-Mixing, Pumping, and Valving System," Proceedings of the 11th International Conference on Solid State Sensors and Actuators (Transducers '01), Munich, Germany, June 10-14, 2001, 950-953.
  deshmukh.transducers01.pdf
• Associated videos (they are pretty big > 10MB)

  mixing video.avi

  pumping video.avi

  valve video.avi

  Bubble video.avi

  
  

• Papavasiliou, A.P., Pisano, A. P., and Liepmann, D., (2001) "High-Speed and Bi-Stable Electrolysis-Bubble Actuated Gate Valves," Proceedings of the 11th International Conference on Solid State Sensors and Actuators (Transducers '01), Munich, Germany, June 10-14, 2001, 940-943.
  papavasiliou_transducers01.pdf
  
  
• Zahn, J. D., Deshmukh, A. A., Pisano, A. P. and Liepmann, D. (2001). "Continuous on-chip micropumping through a microneedle". 14th IEEE International Conference on Micro Electro Mechanical Systems, Interlaken, Switzerland, 21-25 Jan. 2001, 503-6.
  Zahn_MEMS-01paper.pdf
  
  
• Srinivasan, U., Liepmann, D. and Howe, R. T. (2001). "Microstructure to substrate self-assembly using capillary forces." Journal of Microelectromechanical Systems 10(1): 17-24.
  Thara-selfassembly.JMEMS.pdf
  
  
• Fu, K.. Knobloch, A.J., Cooley, B. A., Walther, D. C., Liepmann, D., Miyasaka, K. and Fernandez-Pello, C. (2001) "Microscale Combustion Research for Applications to MEMS Rotary IC Engine" Proceedings of 2001 National Heat Transfer Conference, ASME, paper No. NHTC2001-20089.
  
  
• Liepmann, D. (2001) "Microfluidics for Delivery of Reagents," Photonics West 2001: International Biomedical Optics Symposium (BiOS), Proceedings of SPIE Vol. 4265, Paper No. 4265-05.
  
  
• Pettigrew, K., Kirshberg, J., Yerkes, K., Trebotich, D. and Liepmann, D. (2001). "Performance of a MEMS based micro capillary pumped loop for chip-level temperature control". 14th IEEE International Conference on Micro Electro Mechanical Systems, Interlaken, Switzerland, 21-25 Jan. 2001, 427-30.
  KIP_MEMS2001_paper.pdf
  
  
• Cowan SE, Liepmann D, Keasling JD. (2001) "Development of engineered biofilms on poly-L-lysine patterned surfaces." Biotechnology Letters 23: 1235-41.
  Cowan Biotech letters.pdf
  
  
• Liepmann, D., (2001) "Delivery, acquisition and control of fluids for BioMEMS applications," Proceedings of The 3rd Korean MEMS Conference, 13-14, April 2001, Seoul National University, Seoul Korea.
  
  
• Trebotich, D., Chang, W. and Liepmann, D. (2001), "Modeling of blood flow in simple micro-channels," Technical Proceedings of the Fourth International Conference on Modeling and Simulation of Microsystems, Hilton Head Island, NC, March 19-21, 2001, pp: 218-222.
  Treb.MSM2001 conf.T32.6
  
  
• Dickey, C.K., Makhijani, V.B., Deshmukh A. and Liepmann, D. (2001) "Computational Design Analysis for In-Plane Microfluidic Valves," Technical Proceedings of the Fourth International Conference on Modeling and Simulation of Microsystems, Hilton Head Island, NC, March 19-21, 2001, pp: 235-238.
  Dickey.MSM2001 conf.T54.02
  
  
• Zahn, J.D., Talbot, N.H., Liepmann, D.and Pisano, A.P., (2000) "Microfabricated Microneedles for Minimally Invasive Biomedical Devices." Biomedical Microdevices 2(4):295-303.
  Zahn_Med_Microsystems_Paper.pdf
  
  
• Liepmann, D., (2000). "Drug Delivery, Microfluidics, and MEMS." Proceedings of ICMMB-11: International Conference on Mechanics in Medicine and Biology, Maui, Hawaii, April 2-5, 2000.
  
  
• Kuan N, Liepmann D, Pisano AP. (2000) "Fabrication and packaging of microfluidic devices with su-8 epoxy." Proceedings of the 2000 ASME International Mechanical Engineering Congress and Exposition, 5-10 Nov., Orlando, FL, USA, pp. 591-4.
  
  
• Cowan, SE; Gilbert, E; Liepmann, D; Keasling, JD, "Commensal interactions in a dual-species biofilm exposed to mixed organic compounds." Applied and Environmental Microbiology, 66(10):4481-4485, 2000.
  cowan and keasling.pdf
  
  
• Zahn, J. D., Trebotich, D. and Liepmann, D. (2000). "Microfabricated microdialysis microneedles for continuous medical monitoring". 1st Annual International IEEE-EMBS Special Topic Conference on Microtechnologies in Medicine and Biology, Lyon, France, 12-14 Oct. 2000, 375-80.
  Zahn_Microdialysis_Needle-IEEE_Paper.pdf
  
  
• Stoeber, B. and Liepmann, D. (2000). "Fluid injection through out-of-plane microneedles". 1st Annual International IEEE-EMBS Special Topic Conference on Microtechnologies in Medicine and Biology, Lyon, France, 12-14 Oct. 2000, 224-8.
  stoeber_IEEE.pdf
  
  
• Shrewsbury, P. J., Muller, S. J. and Liepmann, D. (2000). "Flow of lambda -DNA in microfluidic devices". 1st Annual International IEEE-EMBS Special Topic Conference on Microtechnologies in Medicine and Biology, Lyon, France, 12-14 Oct. 2000, 415-20.
  Shrewsbury_IEEE_paper.pdf
  
  
• Chang, W., Trebotich, D., Lee, L. P. and Liepmann, D. (2000). "Blood flow in simple microchannels". 1st Annual International IEEE-EMBS Special Topic Conference on Microtechnologies in Medicine and Biology, Lyon, France, 12-14 Oct. 2000, 311-15.
  Chang_IEEE_paper.pdf
  
  
• Scalf, J., Liepmann, D. and Pisano, A. P. (2000). "Bulk-etched integrated mesoscopic fluidic interconnects for fluidic microdevices". The Electrochemical Society (World Meeting Number 004 0642), Phoenix, Arizona (USA), 22-27 October, 2000.
  
  
• Papavasilliou, A. P., Liepmann, D. and Pisano, A. P. (2000). "Electrolysis-bubble actuated gate valve [for insulin injection application]". Solid-State Sensor and Actuator Workshop, Hilton Head Island, SC, 4-8 June, 48-51.
  papavasiliou_Hilton_Head_paper.pdf
  
  
• Kirshberg, J., Yerkes, K. L. and Liepmann, D. (2000). "Demonstration of a micro-CPL based on MEMS fabrication technologies". 35th Intersociety Energy Conversion Engineering Conference, Las Vegas, NV, USA, 24-28 July 2000, 1198-204 vol.2.
  
• Desmukh, A. A., Liepmann, D. and Pisano, A. P. (2000). "Continuous micromixer with pulsatile micropumps". Solid-State Sensor and Actuator Workshop, Hilton Head Island, SC, USA, 4-8 June 2000, 73-6.
  deshmukh_HiltonHead.pdf
  
  
• Kirshberg, J., Yerkes, K., and Liepmann, D., (2000) "Demonstration of a Micro-CPL based on MEMS Fabrication Technologies," Volume 2, pp. 1198-1204 Proceedings from the 35th Intersociety Energy Conversion Engineering Conference, Las Vegas, Nevada.
  
  
• Kirshberg, J., Yerkes, K., Trebotich, D., and Liepmann, D. (2000) "Cooling Effect of a MEMS-Based Micro Capillary Pumped Loop for Chip-Level Temperature Control," Proceedings from The 2000 International Mechanical Engineering Congress & Exposition, Orlando, Florida. This paper was awarded the Agilent Technologies Best Student Paper Award of The MEMS Symposium
  Kirshberg_ASME_2000 paper.pdf
  
  
• Stoeber, B. and Liepmann, D. (2000). "Two-Dimensional Arrays of Out-of-Plane Needles". Proceedings from The 2000 International Mechanical Engineering Congress & Exposition, November, 2000, Orlando, Florida.
  Stoeber.ASME2000.pdf
  
  
• Zahn, J.D. and Liepmann, D. (2000) "Complex Biological Fluid Flow Through Microfabricated Microneedles," Proceedings of the ASME MEMS 2000 Symposium, November 2000, Orlando, Florida.
  
  
• Kirshberg, J., Yerkes, K., and Liepmann, D., (1999) "Micro-Cooler for Chip-Level Temperature Control," SAE Aerospace Power Systems Conference, Mesa, Arizona, P-341.
  Kirshberg.SAE MicroCooler Paper 1999.pdf
  
  
• Papavasiliou, A.P., Liepmann, D., and Pisano, A.P., (1999) "Fabrication of a Free Floating Silicon Gate Valve," Proceedings of the ASME MEMS Division, 1999 IMECE, Vol.1 pp 435-440.
  papvasiliou_ASME1999.pdf
  
  
• Evans, J. D. and Liepmann, D., (1999) "The Bubble Spring and Channel (BsaC) Valve: An Actuated, Bi-Stable Mechanical Valve for In-Plane Fluid Control," Transducers '99, The 10th International Conference on Solid-State Sensors and Actuators, Sendai, Japan, June 7 - 10, 1999.
  
  
• Evans, J. D. and Liepmann, D., (1999) "The 'Spring Valve' Mechanical Check Valve for In-Plane Fluid Control," Transducers '99, The 10th International Conference on Solid-State Sensors and Actuators, Sendai, Japan, June 7 - 10, 1999.
  
  
• Srinivasan, U., Howe, R.T. and Liepmann, D., (1999) "Fluidic Assembly using Patterned Self-Assembled Monolayers and Shape Matching," Transducers '99, The 10th International Conference on Solid-State Sensors and Actuators, Sendai, Japan, June 7 - 10, 1999.
  
  
• Shrewsbury, P. J., Muller, S. J. and Liepmann, D. (1999). "Characterization of DNA flow through microchannels". International Conference on Modelling and Simulation of Microsystems, Semiconductors, Sensors and Actuators, San Juan, Puerto Rico, 19-21 April 1999, 578-80.
  Shrewsbury.MSM1999.pdf
  
  
• D. Fabris, S. J. Muller, and D. Liepmann, (1999) "Wake measurements for flow around a sphere in a visocelastic fluid," Physics of Fluids, 11(12):3599-3612, 1999.
  Fabris.ViscoelasticWake.PhysFluids.pdf
  
  
• Woycheese, J. P.; Pagni, P. J.; Liepmann, D., (1999) "Brand Propagation from Large-Scale Fires," J. Fire Protection Engineering, 10(2) 32-44.
  
  
• Shroff, S. and Liepmann, D.(1997) "Spray Generation Over Curved Surfaces". Proceedings of the ASME Fluids Engineering Division Summer Meeting. FEDSM'97 June 22-26.
  
  
• Lee, L.P., Berger, S.A., Pruitt, L., and Liepmann, D. (1998) "Key Elements of a Transparent Teflon Microfluidic System," m-TAS '98 International Symposium, Banff, Canada, Oct. 17-21, 1998.
  
  
• Lee, L.P., Berger, S.A., Pruitt, L., and Liepmann, D. (1998) "High Aspect Ratio Polymer Microstructures and Cantilevers for BioMEMS," Sensors and Acuators A71(1-2): 144-149.
  Lee -Sensors and Actuators A.pdf
  
  
• Evans, J.D., Liepmann, D. and Pisano, A.P. (1997) "Planar Laminar Mixer", MEMS97 (The Tenth Annual International Workshop on Micro Electro Mechanical Systems), January 26-30, 1997, Nagoya, Japan, pp. 96-101.
  Evans_mems97.pdf
  
  
• Weisgraber, T. and Liepmann, D. (1998) "Turbulent Structure during Transition to Self-Similarity in a Round Jet," Experiments in Fluids 24: 210-224.
  Weisgraber.TurbStruct.Exp in Fluids1998.pdf
  
  
• Baumert, B.M., Liepmann, D. and Muller, S.J. (1997) "Digital Particle Image Velocimetry in Flows with Nearly Closed Pathlines: the Viscoelastic Taylor-Couette Instability," J. Non-Newtonian Fluid Mech.69(2-3):221-237.
  Baumert.TaylorCouette.JNonNewFluids1997.pdf
  
  
• Jacob, J., Savas, O. and Liepmann, D. (1997) "Trailing Vortex Wake Growth Characteristics of a High Aspect Ratio Rectangular Airfoil," AIAA Journal, 35(2): 275-280.
  
  
• Fabris, D. and Liepmann, D. (1997) "Vortex ring structure at late stages of formation," Physics of Fluids, Vol. 9 N9, pp. 2801-2803.
  Fabris.VortexRing.PhysFluids1997.pdf
  
  
• Fabris, D., Liepmann, D. and Marcus, D., (1996) "Experimental Measurement and Matching Simulation of a Vortex Ring Impinging on a Wall," FED (Fluid Eng. Div.) Conference ASME, Vol 238 (Part 3), pg 49-56.
  
  
• Fabris, D., Liepmann, D. and Marcus, D. (1996) "Quantitative Experimental and Numericial Investigation of a Vortex Ring Impinging on a Wall," Phys. Fluids, 8:2640-2649, 1996.
  Fabris.VortexRing.PhysFluids1996.pdf
  
  
• Jacob, J., Savas, O. and Liepmann, D. (1996) "Experimental Investigation of Forced Wake Vortices of a Rectangular Wing," AIAA Paper 96-2497, June 1996.
  
  
• Jacob, J., Liepmann, D. and Savas, O., (1996) "Natural and Forced Growth Characteristics of the Vortex Wake of a Rectangular Airfoil," Paper CP-584-27, presented at the 78th Fluid Dynamics Panel Symposium on the Characterization and Modification of Wakes from Lifting Vehicles in Fluids, NATO-AGARD Meeting, Trondheim, Norway, 20-23 May, 1996.
  
  
• Jacob, J., Liepmann, D. and Savas, O., (1995) "Experimental Investigations of the Trailing Vortex Wake of a Rectangular Airfoil," AIAA Paper 95-1841, 13th AIAA Applied Aerodynamics Conference, San Diego, California, June 1995.
  
  
• Liepmann, D. (1995) "Why do Streamwise Vortices Form at the Top and Bottom of a Jet Moving Parallel to a Free Surface." J. Fluids Eng., 117: 1-2.
  
  
• Liepmann, D. and Gharib, M. (1994) "The Vorticity and Entrainment Dynamics of Near-Surface Jets, " The Proceedings of the Symposium on Free-Surface Turbulence, ASME Fluids Engineering Division Summer Meeting, Lake Tahoe, June 19, 1994.
  
  
• Liepmann, D., Gharib, M. and Liepmann, H.W. (1993) "Experimental Approach to Noise Generation by the Entrainment Fluctuations of a Round Jet" The Proceedings of the Symposium on Flow Noise Modeling, Measurement and Control, ASME Winter Meeting, New Orleans, Nov. 28, 1993.
  
  
• Zhang, J., Shiota, T., Shandas, R., Deng, Y. Weintraub, R., Paik, J., Liepmann, D. and Sahn, D. (1993) "Effects of Adjacent Surfaces of Different Shapes on Regurgitant Jet Sizes: An In Vitro Study Using Color Doppler Imaging and Laser-Illuminated Dye Visualization," J. Am. Coll. Cardiology , 22(5):1522-1529, 1993.
  
  
• Liepmann, D. and Gharib, M. (1992) "The Role of Streamwise Vorticity on the Near-Field Entrainment of a Round Jet," The Journal of Fluid Mechanics, 245:643-668.
  
  
• Shandas, R., M., Liepmann, D., Shiota, T. and Sahn, D. (1992) "Experimental Studies to Define the Geometry of the Flow Convergence Region," Echocardiology, 9(1):43-50.
  
  
• Gharib, M., Weigand, A., Willert, C. and Liepmann, D. (1992) "A Flow Model for Vortex Reconnection to the Free Surface," The Proceedings of The Nineteenth Symposium on Naval Hydrodynamics, Korea.
  
  
• Liepmann, D. (1991) "Streamwise Vorticity and Entrainment in the Near-Field of a Round Jet," Physics of Fluids A, 3:1179-1185.
  
  
• Liepmann, D. and Gharib, M."The Effect of a Free Surface on a Round Jet," Physics of Fluids A, 2:1520, 1990.
  
  
• Liepmann, D. and Stephanopoulos, G.N. "A Dynamic Model of a Closed Ecosystem: Development and Global Sensitivity Analysis," Ecological Modeling, 30:13-30, 1985.
  Closed Ecosystem Paper.pdf