Public lectures

On Dec 16, 2020, Dave gave a talk at EML Webinar on Snap, Speckle and Spot: Sight and Sound of Hydraulic Fracture.


On Jan 29, 2020, Dr. Peter J. Lu & ACE-M2R: Advanced Colloids Experiment-Microscopy-2 (ACE-M-2) observes the microscopic behavior of liquids and gases separating from each other. The investigation examines the behavior of model (colloid rich) liquids and model (colloid poor) gases near the critical point, or the point at which there is no distinct boundary between the two phases. ACE-M-2 uses a new microscope to record micro-scale events on short time scales, while previous experiments observed large-scale behavior over many weeks. Liquids and gases of the same material usually have different densities, so they would behave differently under the influence of gravity, making the microgravity environment of the International Space Station ideal for these experiments.


On 20 Mar 2017, Professor Weitz delivered at Hong Kong University of Science and Technology (HKUST) IAS Distinguished Lecture Droplet Microfluidics for Single Cell Studies.


Professor Weitz presented at the Fred Kavli Special Symposium on Physics Frontiers at the APS March Meeting 2016.--- Making New Particles One By One ---
This talk will describe the use of microfluidic devices to create new structures with unusual properties and enormous potential for technological applications. The particles are formed using fluid drops as templates, and take advantage of the exquisite control afforded by the use of microfluidic devices to very simply create complex structures. These new structures facilitate the study of new properties of materials. It is also feasible to use these methods to very easily create nanoparticles of almost any material through a microfluidic spray drier. Remarkably, if these nanoparticles are small enough, they are amorphous, even if the material is otherwise always crystalline. For example, it is even feasible to produce amorphous nanoparticles of table salt (NaCl). The talk will also describe how it is feasible to produce large quantities of these materials, despite making the particles one at a time. This makes the particles valuable for both fundamental studies and for technological applications.


inDrops: Droplet barcoding of single cells: Two teams at Harvard Medical School reported in separate papers in the May 21, 2015, issue of Cell that their labs have developed high-throughput techniques to quickly, easily and inexpensively give every cell in a sample a unique genetic barcode. This allows scientists to analyze complex tissues by genetically profiling hundreds of thousands of individual cells instead of having to rely on an average of the entire sample. In this video, Allon Klein, Marc Kirschner and David Weitz describe their new technology, called inDrops. Read the full story at


On February 26th, 2014, Professor Weitz delivered at Waterloo Institute for Nanotechnology (WIN) Distinguished Lecture entitled "Dripping, Jetting, Drops and Wetting: The Magic of Microfluidics".


Soft Matter Physics: From Science to Technology to Teaching. New NAS member David A. Weitz of Harvard University presents his work on colloids, emulsions, foams, gels, and other soft materials at the NAS Annual Meeting.


Prof Weitz, speaked with Kevin Davies (editor of Bio-IT World) about his research on microfluidics, which has applications in everything from next-gen sequencing technology to personalized cosmetics. Weitz is one of the prime speakers at the 4th Annual Consumer Genetics Conference on October 5. This event covers the key issues facing clinical genetics, personalized medicine, molecular diagnostics, and consumer-targeted DNA applications.