David A. Weitz

David A. Weitz

  • Mallinckrodt Professor of Physics and Applied Physics
  • Director of the Materials Research Science and Engineering Center
  • Co-Director of the BASF Advanced Research Initiative
  • Core Faculty Member, Wyss Institute for Biomedical Engineering
  • Member, Kavli Institute for Bionano Science & Technology

Profile

Weitz and his group study the physics of soft condensed matter, materials easily deformed by external stresses, electric, magnetic or gravitational fields, and even thermal fluctuations. These materials typically possess structures much larger than atomic or molecular scales; the structure and dynamics at these mesoscopic scales determine the macroscopic physical properties.

The goal of their research is to probe and understand the relationship between mesoscopic structure and bulk properties. The group studies both synthetic and biological materials, with interests ranging from fundamental physics to technological applications and from basic materials questions to specific biological problems.

Techniques used by the group include video-image analysis, light scattering, optical microscopy, rheology, and laser tweezing. New experimental techniques are developed, such as the use of multiply scattered waves to study the dynamics and mechanical properties of materials.

Weitz and his group study the properties of colloidal suspensions to investigate the behavior of crystals and glasses as well as the properties of highly disordered gels.  They use confocal microscopy, scattering and rheology to investigate both fundamental properties that are modeled using the colloidal particles as well as more technological applications of these systems.  They also investigate other soft materials such as foams, emulsions and gels, to study the relationship between their internal structure and dynamics and their bulk properties, developing a fundamental understanding that can also impact on technological applications.

Weitz and his group also are developing methods to make ‘designer’ emulsions and foams on a drop-by-drop basis using a class of microfluidic devices that they have developed.  They fabricate multiple emulsions with exquisite precision and they explore both the basic physics of these structures, as well as their potential uses for encapsulation of active materials.  In addition, they explore the scale-up of these structures to make useful quantities of materials.

The group also develops drop-based microfluidics for biophysics and biotechnology applications.  This is a microfluidic technique where minute drops immersed in an inert carrier fluid are used as reaction vessels of only a few picoliters in volume.  They are used to collect biological data at very high rates, and Weitz and his group are applying them to investigate issues in biology and for biotechnology applications.

The group also investigates the mechanical properties of biopolymer networks, both model, reconstituted networks, and those in cells, with a goal of understanding mechanical behavior at the level of single cells and of tissue.  They investigate the properties of reconstituted networks of actin, microtubules and intermediate filaments, and study ‘active’ networks, where molecular motors induce active motion.  These studies provide insight into the mechanical properties of cells. They also investigate mechanical properties of extracellular biopolymer networks, including collagen and fibrin.

Weitz and his group have extensive interactions with industry, with some of their work motivated by the science that directly addresses technologically important problems.  In addition, some research in the group has led to promising new technologies, and several start-up companies have emerged from the research. 

Contact Information

Nickname: Dave
Office:231 Pierce Hall
Email:weitz@seas.harvard.edu
Office Phone:(617) 496-2842
Office Fax(617) 495-0426
Lab Name:Experimental Soft Condensed Matter Group
Assistant:Matthew Zahnzinger
Assistant Office:Pierce Hall 232
Assistant Phone:(617) 496-2159
Research Mgr: Melissa Rae Giglio

Primary Teaching Area

Positions & Employment

Harvard University

  • 2016 - Wyss Institute for Biomedical Engineering: Core Faculty Member
  • 2005 - Present: Mallinckrodt Professor of Physics & Applied Physics

BASF Advanced Research Initiative at Harvard

  • 2007-Present: Co-director

Harvard Kavli Institute for Bionano Science & Technology

  • 2007-2011: Co-director

Technical University of Munich

  • 2008-2009: Fellow, Institute for Advanced Studies

Department of Systems Biology, Harvard University

  • 2006-Present: Professor

University of Amsterdam

  • 2004-2005: van der Waals Honorary Visiting Professor

Harvard Materials Research Science & Engineering Center

  • 2001-Present: Director

Harvard Division of Engineering and Applied Sciences

  • 1999-2005: Gordon McKay Professor of Applied Physics & Physics

University of Pennsylvania

  • 1995-1999: Professor of Physics

Exxon Research and Engineering Co.

  • 1978-1995: Physicist
  • 1987-1989: Group Leader: Interfaces and Inhomogeneous Materials Group
  • 1989-1993: Science Area Leader: Complex Fluids

Other Experience & Professional Membership

Visiting Positions:

  • Visiting Professor, University of Shenzhen, China, 2017-
  • Visiting Professor, South East University, Nanjing, China, 2016-
  • Jolicot Chair, ESPCI, Paris, France, 2016
  • Visiting Professor, Institute for Quantitative Biology, Peking University, 2015-
  • Visiting Professor, Dept. of Chemical Engineering, Sichuan University, 2011-
  • Michelin Chair, ESPCI, Paris, France, 2011, 2012
  • Fellow, Institute for Advanced Studies, Technical University of Munich, Germany, 2008-2009
  • van der Waals Honorary Visiting Professor, University of Amsterdam, Nov. 2004 – Aug. 2005.
  • Industrial Visitor, James Franck Institute, The University of Chicago, Oct.-Nov. 1992.

Scientific Advisory Boards:

  • LafargeHolcim Cement 2014 – present
  • Pepsico, 2013 – present
  • TRIUMF, 2010-2012
  • AxioMx, 2010 - 2015
  • Affomix, 2009-2010
  • Dow-Corning, 2007-2015
  • Cabot Corp. 2002-2008
  • Arryx Corp. 2001-2005
  • Max Planck Institute for Polymers, Mainz, Germany 2001-2009
  • Center for Non-Linear Science, Los Alamos, NM 2001-2010

Entrepreneurship Activities:

  • Co-founder, Dragon Drop Inn, incubator, Suzhou, China (2017)
  • Co-founder, TRCx, single-cell diagnostics (2017)
  • Co-founder, Calyxia, microfluidics for encapsulation (2015)
  • Co-founder 1CellBiO Inc., single-cell sequencing (2015)
  • Co-founder Hunter Biodiscovery, personalized diagnostic and drug discovery company (2015)
  • Co-founder, BoD, BioMillenium, microfluidics to screen for new enzymes (2014)
  • Co-founder, HiFiBio, high-throughput screening and drug discovery (2013)
  • Co-founder, SphereBio, microfluidics company for directed evolution (2013).
  • Co-founder, BoD, GnuBIO, microfluidic sequencing (2011); acquired by BioRad, 2014
  • Co-founder, HAbSel, microfluidics to discover human antibodies (2008)
  • Co-founder, BoD, Capsum, microfluidics for cosmetics (2008); acquired by Chanel 2015
  • Co-Founder and BoD, Raindance Technologies, 2004-2010

Honors

  • Distinguished Alumnus Award, University of Waterloo, 2017 
  • Chevreul Medal, 2016 
  • Honorary PhD. University of Waterloo, 2016 
  • Member, National Academy of Engineering, 2016 
  • Foreign member, Chinese Academy of Chemistry, 2013 
  • Fellow, Royal Society of Chemistry, 2013 
  • Member, National Academy of Sciences, 2010 
  • Member, American Academy of Arts and Sciences, 2010 
  • Fellow of the American Physical Society
  • Exxon Incentive Awards, 1985, 1981

Patents Awarded

 

1. “Arrangement and Method to Apply Diffusing-Wave Spectroscopy to Measure the Properties of Multi-Phase Systems, as well as the Changes Therein,” de Kruif, Cornelis Gijsbertus; Grotenhuis, Erik Ten; Weitz, David A.; Nishimura, Goro; Yodh, Arjun Gaurang; European Patent granted, 10/6/1999, no. 98201042.3-2204.

2. “Vesicles Comprising an Amphiphilic Di-Block Copolymer And a Hydrophobic Compound,” Joanicoat, Mathieu; Nikova, Ani; Talinting, Ruela Maria; Weitz, David A.; patent 2001, international patent, 2003.

3. “Passive Breakup of Drops using Microfluidic Channels,” Stone, Howard; Anna, Shelley; Weitz, David; Link, Darren; US Provisional priority Patent filing, 11/05/02, 60/424,042.

4. “Compositions for Sustained Action Drug Delivery and Methods of Use Thereof,” Weitz, David A.; Tsapis, Nicolas; Edwards, David A.; Schmitke, Jennifer L.; Batycky, Richard P.; Hrkach, Jeffrey S.; US Provisional priority filing, 11/20/2001, 60/331,707; PCT filing, 11/20/2002, PCT/US02/37334. International Patent: Australia, issued 11/20/2002, no. 2002364701.

5. “Electric Field Mediated Emulsification in a Flow Focusing Microfluidic Device,” Weitz, David; Link, Darren; Marquez-Sanchez, Manuel; Cheng, Zhengdong; US Provisional priority filing, 4/10/2003, 60/461,954; PCT filing, 4/9/2004, PCT/US2004/010903. International Patents: Australia, issued 4/9/2004, 2004229440; Canada, issued 4/9/2004, no. 2521852.

6. “Method and Apparatus for Fluid Dispersion,” Stone, Howard; Anna, Shelley; Link, Darren; Whitesides, George; Bontoux, Nathalie; Weitz, David; DiLuzio, Willow; Gitlin, Irina; Garstecki, Piotr; US Patent issued 5/4/2010, no. 7708949; PCT filing 6/30/2003, PCT/US033/20542. International Patents: Australia, issue date 1/21/10, no. 2003253751; Canada, issue date 3/19/13, no. 2491564; China, issue date 2/9/0211, no. ZL03820494.0.

7. “Electronic Control of Fluidic Species,” Link, Darren; Weitz, David; Cheng, Zhengdong; Cristobal-Azkarte, Galder; US Provisional priority filing, 8/27/2003; PCT filing 8/27/2004 PCT/US2004/027912. International Patent: Japan, issue date 11/19/2010, no. 4630870.

8. “Method and Apparatus for Forming Multiple Emulsions,” Link, Darren R.; Utada, Andrew; Weitz, David A.; US Provisional priority filing, 3/4/2005; PCT filing 3/3/2006, PCT/US06/007772. International Patent: France, issue date 6/6/2012, no. 2248578.

9. “In Vitro Evolution in Microfluidic Systems,” Weitz, David; Griffiths, Andrew; Bibette, Jerome; Ahn, Keunho; Link, Darren; US Patent issued, no. 7968287, filing date 10/8/2004; PCT filing 10/10/2005, PCT/GB2005/003889. International Patent: EPO, issue date 10/10/2005, no. 1805324.

10. “Compartmentalized Screening by Microfluidic Control,” Ahn, Keunho; Bibette, Jerome M.; Griffiths, Andrew; Link, Darren R.; Weitz, David A.; PCT filing, 11/12/2005, PCT/GB2005/003924.

11. “Compartmentalized Combinatorial Chemistry by Microfluidic Control,” Ahn, Keunho; Bibette, Jerome M.; Griffiths, Andrew; Link, Darren R.; Weitz, David A.; US Continuation filing, 12/4/2006, 11/633,849, patent pending; PCT filing, 10/12/2005, PCT/GB2005/003927.

12. “Microfluidic Manipulation of Fluids and Reactions,” Fraden, Seth; Link, Darren R.; Weitz, David A.; Azkarate, Galder C.; Shim, Jung uk; US Patent, issue date 7/7/2009, no. 7556776.

13. “Fluidic Droplet Coalescence,” Weitz, David A.; Ahn, Keunho; Chong, Henry; Agresti, Jeremy; Link, Darren R.; US Provisional priority filing 1/27/2006; PCT filing, 1/24/2007, PCT/US2007/002063. International Patent: EPO, no. 2004316.

14. “Fluorocarbon Emulsion Stabilizing Surfactants,” Agresti, Jeremy; Ahn, Keunho; Baret, Jean-Christophe; El Harrak, Abdeslam; Griffiths, Andrew; Guerra, Rodrigo; Holtze, Christian; Hutchison, John Brian; Merten, Christoph; Miller, Oliver John; Ryckelynck, Michael; Taly, Valerie; Weitz, David A.; US Provisional priority filing, 8/7/2006, #60/836,455; PCT filing, 8/7/2007, PCT/US2007/017617.

15. Emulsions and Techniques for Formation,” Carreras, Enric Santanach; Chu, Liang-Yin; Fernandez-Nieves, Alberto; Shum, Ho Cheung; Utada, Andrew; Weitz, David A.; US Provisional priority Patent filing, 3/28/2007, 60/920,574; US Utility Patent issued, issue date 8/17/2010, no. 7776927; PCT filing, 3/28/08, PCT/US08/004097. International Patent: EPO, issue date 10/10/2012, no. 2136786.

16. “Assay and Other Reactions Involving Droplets,” Weitz, David A.; Agresti, Jeremy; Chu, Liang-Yin; Kim, Jin-Woong; Rowat, Amy; Sommer, Morten O.A.; Dantas, Gautam; Church, George M.; US Provisional priority filing, 3/7/2007, 12/529,926; PCT filing 3/7/2008, PCT/US08/003185; US utility filing, 9/4/2009, Patent Pending.

17. “Manipulation of Fluids, Fluid Components and Reactions in Microfluidic Systems,” Agresti, Jeremy; Boukellal, Hakim; Fraden, Seth; Jia, Yanwei; Rowat, Amy; Selimovic, Seila; Weitz, David A.; US Provisional priority filing, 4/19/2007, 60/925,357; PCT filing 4/18/2008, PCT/US2008/00500; US utility filing, 10/8/2009, 12/595,107, Patent Pending.

18. “Glass Coating of Microfluidic Channels,” Weitz, David; Holtze, Christian; Abate, Adam; Lee, Daeyeon; Do, Thao; US Provisional priority filing, 8/7/2007, 60/963,709.

19. “Metal Oxide Coating on Surfaces,” Weitz, David; Holtze, Christian; Abate, Adam; Lee, Daeyeon; Do, Thao; PCT filing, 8/7/2008, PCT/US2008/00947; US Utility filing, 2/5/2010, 12/733,086, Patent Pending.

20. “Valves and Other Flow Control in Fluidic Systems Including Microfluidic Systems,” Abate, Adam R; Weitz, David A.; US Provisional priority filing 5/16/2008, 61/053,812; PCT filing 5/15/2009, PCT/US2009/003024, Filed: 5/15/2009. US Utility filing, 11/12/2010, Patent Pending.

21. “Systems and Methods for Nucleic Acid Sequencing,” Abate, Adam R; Agresti, Jeremy; Hung, Tony; Weiner, Michael P.; Weitz, David A.; US Provisional priority filing, 12/21/2007, 61/008,862; PCT filing, 12/19/2008, PCT/US08/013912.

22. “Microfluidic Storage and Arrangement of Drops,” Agresti, Jeremy; Koester, Sarah; Rowat, Amy; Schmitz, Christian H.; Weitz, David A.; US Provisional priority filing, 4/28/2008, 61/048,304; PCT filing, 4/28/2009, PCT/US09/002644; US Utility filing, 10/28/2010, 12/990,102, Patent Pending.

23. “Mesoporous Metal Oxide Microspheres and Method for Forming Same” Carroll, Nick J.; Derbins, Erin; Mendez, Sergio; Petsev, Dimiter Nikolov; Rathod, Shailendra B.; Weitz, David A.; US Provisional priority filing, 11/3/2008, 12/263,947; US Utililty Patent issued, 12/18/2012, no. 8334013.

24. “Surfaces, Including Microfluidic Channels, With Controlled Wetting Properties,” Abate, Adam R; Holtze, Christian; Krummel, Amber; Weitz, David A.; US Provisional priority filing, 3/28/2008, 61/040,442; PCT filing, 2/11/2009, PCT/US2009/000850.

25. “Creation of Libraries of Droplets and Related Species,” Agresti, Jeremy; Weitz, David A.; US Provisional priority filing, 9/19/2008, 61/098,674; PCT filing 9/17/2009, PCT/US09/05184.

26. “Controlled Encapsulation of Single Cells into Monodisperse Picoliter Drops,” Weitz, David A.; Edd, Jon F.; Di Carlo, Dino; Humphry, Katherine J.; Koester, Sarah; Irimia, Daniel; Toner, Mehmet; US Provisional priority filing, 5/23/2008, 61/055,653; US Utililty Patent filing, 5/26/2009, Patent Pending.

27. “Polymersomes, Phospholipids, and Other Species Associated with Fluidic Droplets,” Kim, Jin Woong; Lee, Daeyeon; Shum, Ho Cheung; Weitz, David A.; Yoon, Insun; US Provisional priority filing, 6/5/2008, 61/059,163; PCT filing, 6/4/2009, PCT/US09/03389; EPO filing, 6/4/2009, no. 9758762, Patent Pending.

28. “Microfluidic Droplets for Metabolic Engineering and Other Applications,” Humphry, Katherine; Stephanopoulos, Gregory N.; Wang, Benjamin; Weitz, David A.; US Provisional priority filing, 6/27/2008, 61/076,473; PCT filing, 6/26/2009, PCT/US09/03822.

29. “Scale-up of Microfluidic Devices,” Weitz, David A.; Abate, Adam R; Romanowsky, Mark Benjamin; US Provisional priority filing, 3/13/2009, 61/160,184; PCT filing, 3/12/2010, PCT/US10/00753.

30. “Fluid Injection,” Abate, Adam R; Hung, Tony; Mary, Pascaline; Weitz, David A.; US Provisional priority filing, 6/26/2009, 61/220,847; PCT filing, 6/25/2010, PCT/US10/40006.

31. “Particle-Assisted Nucleic Acid Sequencing,” Weitz, David A.; Abate, Adam R; US Provisional priority filing, 12/19/2008, 61/139,207; PCT filing, 12/18/2009, PCT/US09/06649.

32. “Virus/Nanowires Encapsulation Within Polymer Microgels for 2D and 3D Devices for Energy and Electronics,” Weitz, David A.; Lee, Daeyeon; Magyar, Andrew; Nam, Yoon Sung; Kim, Jin Woong; Belcher, Angela M.; PCT filing, 9/19/2008, PCT/US08/077137.

33. “Multiple Emulsions Created Using Junctions,” Weitz, David A.; Romanowsky, Mark Benjamin; Holtze, Christian; US Provisional priority filing, 9/2/2009, 61/239,402; PCT filing, 9/1/2010, PCT/US10/47458.

34. “Droplet Creation Techniques,” Weitz, David A.; Abate, Adam R.; US Provisional priority filing, 10/27/2009, 61/255,239; PCT filing, 10/26/2010, PCT/US10/54040.

35. “Methods and Apparatus for Fluorescence Sensing Employing Fresnel Zone Plates,” Weitz, David A.; Abate, Adam R.; Crozier, Kenneth B.; Schonbrun, Ethan; US Provisional priority filing, 5/7/2009, 61/176,361; PCT filing, 5/7/201, PCT/US10,01372.

36. “Multiple Emulsions Created Using Jetting and Other Techniques,” Weitz, David A.; Abate, Adam R.; Thiele, Julian W.P.; US Provisional priority filing, 9/2/2009, 61/239,405; PCT filing, 9/1/2010, PCT/US10/47467.

37. “Particles for Drug Delivery and Other Applications,” Weitz, David A.; Fan, Ben; Koltzenburg, Roland; Rieger, Jens; US Provisional priority filing,8/23/2010; 61/376,149; PCT filing, 8/23/2011, PCT/US11/48822.

38. “Melt Emulsification,” Weitz, David A.; Shum, Ho Cheung; Sun, Bingjie; Holtze, Christian; US Provisional priority filing, 3/17/2010, 61/314,841; PCT filing 3/17/2011, PCT/US11/28754.

39. “Droplet Formation Using Fluid Breakup,” Weitz, David A.; Abate, Adam R.; US Provisional priority filing, 2/8/2012; PCT filing 2/7/2013, PCT/US13/25058.

40. “Systems and Methods for Splitting Droplets,” Weitz, David A.; Abate, Adam R.; US Provisional priority filing, 2/7/2011, 61/440,198; PCT filing, 2/6/2012, PCT/US12/23961.

41. “Deformable Platforms for Biological Assays,” Weitz, David A.; Butler, James P.; Fredberg, Jeffrey; Krishnan, Ramaswamy; Ehrlicher, Allen; US Provisional priority filing, 11/16/2011, 61/560,448; PCT filing, 11/16/2012, PCT/US12/65597.

42. “Acoustic Waves in Microfluidics,” Weitz, David A.; Franke, Thomas; Wixforth, Achim; Schmid, Lothar; Abate, Adam R.’ Agresti, Jeremy; US Provisional priority filing, 8/23/2010, 61/376,137; PCT filing, 8/23/2011, PCT/US11/48804.

43. “Control of Emulsions, Including Multiple Emulsions,” Weitz, David A.; Rotem, Assaf; Abate, Adam R.; Holtze, Christian; US Provisional priority filing, 5/23/2011, 61/489,211; PCT filing, 5/22/2012, PCT/US12/38957.

44. “Spray Drying Techniques,” Weitz, David A.; Abate, Adam R., Thiele, Julian W.P.; Holtze, Christian; Windbergs, Maike; US Provisional priority filing, 12/21/2010, 61/425,415; PCT filing, 12/20/2011, PCT/US11/01993.

45. “Delivery to Hydrocarbons or Oil, Including Crude Oil,” Weitz, David A.; Abbaspourrad, Alireza; Kim, Shin-Hyun; Duncanson, Wynter Joia; US Provisional priority filing, 7/6/2011, 61/505,001.

46. “Multiple Emulsions and Techniques for the Formation of Multiple Emulsions,” Weitz, David A.; Abbaspourrad, Alireza; Kim Shin-Hyun; US Provisional priority filing, 7/6/2011, 61/504,990; PCT filing, 7/5/2012, PCT/US12/45481.

47. “Systems and Methods for Droplet Production and/or Fluidic Manipulation,” Weitz, David A.; Abate, Adam R.; Sperling, Ralph A; US Provisional priority filing, 9/28/2011, 61/540,194; PCT filing, 9/28/2012, PCT/US12/57404.

48. “Systems and Methods for Shell Encapsulation,” Weitz, David A.; Holtze, Christian; Shum, Ho Cheung; Sun, Bingjie; Zhao, Yuanjin; US Provisional priority filing, 8/30/2011, 61/529,126; PCT filing, 8/15/2012, PCT/US12/50916.

49. “Polymerization Reactions within Microfluidic Devices,” Weitz, David A.; Holtze, Christian; Siebert, Max; Zieringer, Maximilian; US Provisional priority filing, 4/25/2012, 61/638,436; PCT filing, 4/24/2013, PCT/US13/37895.

50. “Particles for Uptake or Sensing of Oil and other Applications, and Related Methods,” Weitz, David A.; Abbaspourrad, Alireza; Carroll, Nichlaus J.; US Provisional priority filing, 11/20/2012, 61/728,478; PCT filing, 11/20/2013, PCT/US13/70896.

51. “Systems and Methods for Spray Drying in Microfluidic and Other Systems,” Weitz, David A.; Amstad, Esther; Holtze, Christian; US Provisional priority filing, 9/21/2012, 61/704,422; PCT filing, 9/19/2013, PCT/US13/60522.

52. “Systems and Methods for Epigenetic Sequencing,” Weitz, David A.; Bernstein, Bradley; Ram, Oren; Rotem, Assaf; US Provisional priority filing, 3/5/2012, 61/634,744; PCT filing, 3/5/2013, PCT/US13/29123.

53. “Control of Entities such as Droplets and Cells using Acoustic Waves,” Weitz, David A.; Franke, Thomas; US Provisional priority filing, 6/27/2012, 61/665,087; PCT filing, 6/26/2013, PCT/US13/47829.

54. “Systems and Methods for Droplet Production and Manipulation using Acoustic Waves,” Weitz, David A.; Franke, Thomas; Schmid, Lothar; US Provisional priority filing, 10/26/2012, 61/719,351; PCT filing, 10/24/2013, PCT/US13/66591.

55. “Determination of Immune Cells and Other Cells,” Weitz, David A.; Gilbert, John R.; Heyman, John; US Provisional priority filing, 8/26/2013, 61/870,214.

56. “Devices and Methods for Forming Relatively Monodisperse Droplets,” Weitz, David A.; Amstad, Esther; Sperling, Ralph A.; US Provisional priority filing, 3/6/2013, 61/773,604.

57. “Microparticles, Methods for their Preparation and Use,” Weitz, David A.; Amstad, Esther; Ostafe, Raluca; Prodanovic, Radivoje; Utech, Stefanie; Mao, Angelo S.; Mooney, David J.; Wilking, Connie Chang; US Provisional priority filing, 11/8/2013, 61/901,949.

58. “Coalescence of Droplets,” Akartuna, Ilke; Aubrecht, Donald M.; Kodger, Thomas E.; Weitz, David A.; US Provisional priority filing, 6/14/2013, 61/835,381.

59. “Biomimetic Device for Generating Human Platelets,” Italiano, Joseph E.; Mazutis, Linas; Thon, Jonathan N.; Weitz, David A.; US Provisional priority filing, 1/3/2013, 61/848,424.

60. “Rapid Production of Droplets,” Weitz, David A; Amstad, Esther; US Provisional priority filing, 5/14/2013, 61/823,175.

61. “Nanostructured Active Therapeutic Vehicles and Uses Thereof,” Abbaspourrad, Alireza; Carroll, Nichlaus J.; Lind, Johan Ulrik; Parker, Kevin Kit; Weitz, David A.; US Provisional priority filing, 2/22/2013, 61/768,206.

62. “Compositions for Detecting Cellular Forces,” Ingber, Donald E.; Campas, Otger; Mahadevan, Lakshminarayanan; Weitz, David A.; US Provisional priority filing, 5/21/2013, 61/825,580.

63. “Microcapsules and Methods for their Preparation and Use,” Carroll, Nicholaus J.; Weitz, David A.; Zieringer, Maximilian; US Provisional priority filing, 7/24/2013, 61/857,834.

64. “Drying Techniques for Microfluidic and Other Systems,” Amstad, Esther; Spaepen, Frans; Weitz, David A.; US Provisional priority filing, 10/29/2013, 61/897,144.

65. “Virus/Nanowire Encapsulation within Polymer Microgels for 2D and 3D Devices for Energy and Electronics,” Belcher, Angela M.; Kim, Jin Woong; Lee, Daeyeon; Magyar, Andrew; Nam, Yoon Sung; Weitz, David A.; US Provisional priority filing, 3/18/2010, 12/678,894; US Utility Patent issued, issue date 4/1/2014, no. 0116993.

66. “Particle-Assisted Nucleic Acid Sequencing,” Abate, Adam R.; Weitz, David A.; US Provisional priority filing, 6/13/2011, 13/139,326; US Utility Patent issued, issue date 6/10/2014, no. 0015822.

67. “Surfaces, Including Microfluidic Channels, with Controlled Wetting Properties,” Abate, Adam R.; Holtze, Christian; Krummel, Amber; Weitz, David A.; US Provisional priority filing, 9/28/2010, 12/935,203; US Utility Patent issued, issue date 8/12/2014, no. 0123413.

68. “Metal Oxide Coating on Surfaces,” Abate, Adam R.; Do, Thao; Holtze, Christian; Lee, Daeyeon; Weitz, David A.; US Provisional priority filing, 2/5/2010, 12/733,086; US Utility Patent issued, issue date 11/11/2014, no. 0239824.

69. “In Vitro Evolution in Microfluidic Systems,” Ahn, Keunho; Bibette, Jerome M.; Griffiths, Andrew; Link, Darren R.; Weitz, David A.; US Provisional priority filing, 12/4/2012, 13/693,356; US Utility Patent issued, issue date 10/28/2014, no. 0217601.

70. “Electronic Control of Fluidic Species,” Ahn, Keunho; Cheng, Zhengdong; Cristobal-Azkarate, Galder; Link, Darren R.; Weitz, David A.; US Provisional priority filing, 2/23/2006, 11/360,845; US Utility Patent issued, issue date 7/1/2014.