Usui, T., Mollinger, S. A., IANCU, A. T., Reis, R. M., Prinz, F. B. With the aid of micro-fabrication technology, a novel scaffolding method for biodegradable polymers such as polylactic acid (PLA), polyglycolic acid (PGA), and the copolymers poly(lactide-co-glycolide)(PLGA), was developed to construct three-dimensional multi-layer micro-fluidic tissue scaffolds. In this paper, we describe the design of the tool and demonstrate its capability for atomic resolution STM imaging, atomic layer deposition, and the combination of the two techniques for in situ characterization of deposition. View details for Web of Science ID 000291322600002, View details for DOI 10.1016/j.elecom.2011.02.004, View details for Web of Science ID 000290741500006. Material strength in polymer shape deposition manufacturing, INTEGRATED DESIGN AND RAPID MANUFACTURING OVER THE INTERNET. View details for DOI 10.1088/0957-4484/21/48/485402, View details for Web of Science ID 000284053500011, View details for Web of Science ID 000281891900031, View details for Web of Science ID 000280855100032, View details for Web of Science ID 000276554800012. QuantumScape CEO Jagdeep Singh, who founded the company in 2010 with fellow Stanford scientists Fritz Prinz and Tim Holme, believes the electric battery share of the overall vehicle market. Hong, S., Bae, J., Koo, B., Chang, I., Cho, G. Y., Kim, Y., Cha, S. W., Prinz, F. B. Digitally-patterned nanoprobe arrays for single cell insertion enabled by wet tapping. Kim, Y., Provine, J., Waich, S. P., Park, J., Phuthong, W., Dadlani, A. L., Kim, H., Schindier, P., Kim, K., Prinz, F. B. We found that 180 cycles or approximately 10 nm of ALD Pt, with a Pt loading of only 0.02 mg cm(-2), were sufficient for the purpose of a catalytic cathode. View details for DOI 10.1007/s10544-007-9097-8, View details for Web of Science ID 000250462200009, View details for DOI 10.1016/j.ssi.2007.01).008, View details for Web of Science ID 000251694300003. B., Tian, X., Guer, T. M., Prinz, F. B. View details for Web of Science ID 000316846700034. This work demonstrates the kinetic role of 2 nm thin YSZ/Pt cermet layers on enhancing the oxygen reduction kinetics for low temperature solid oxide fuel cells. A micro-fabrication technology was used to shape an array of micro-orifices and micro-cavities in 85/15PLGA layers. Buie, C., R., Posner, J., Fabian, T., Cha, S., W., Kim, D., Prinz, F., B. Micro-structured Biodegradable Polymers Embedded with Cells and Drugs for Tissue Engineering and Drug Delivery. The key to our technology is a patented solid ceramic electrolyte separator, the material that keeps the anode and cathode from touching and moves lithium ions from one side of the battery to the other during charge and discharge. Adipose-derived stromal cells (ASCs) constitute a promising source of cells for regenerative medicine applications. Local accumulation and dissipation of charges on the surface of oxide ion conductors resulting from electric potentials were observed with conductive atomic force microscopy (AFM). Lee, M., O'Hayre, R., Prinz, F. B., Gur, T. M. Quantitative impedance measurement using atomic force microscopy. Residual stresses in layered manufacturing. Amon, C., H., Merz, R., Prinz, F., B., Schmaltz, K., S. Merz, R., Prinz, F., B., Ramaswami, K., Terk, M., Weiss, L. Two types of electrochemical thin-film pCO2-sensors for in vitro and in vivo applications. Solvent-vapor based bonding of micro-molded layers preserved 20 microm sized structures. We ascribe such improvements to the crystallization and densification of the film induced by high-energy ion bombardments on the film surface during the plasma treatment. The use of micro-channels for making the electrochemical measurements significantly reduces parasitic electrical capacitances and allows for current detection in the sub-pico-ampere range at high signal bandwidths. In 2018, Volkswagen invested $100 million in the company, becoming the largest shareholder. Highly oriented pyrolytic graphite (HOPG) implanted with N, Ar and B is studied as a support for platinum nanoparticle catalysts for fuel cells. Atomic Scale Verification of Oxide-Ion Vacancy Distribution near a Single Grain Boundary in YSZ. After a negative bias was applied at the tip, a sequence of surface potential maps appeared compatible with electron injection onto the electrolyte surface. Utilizing the aberration-corrected TEM capability and HRTEM simulation results, we experimentally verified that oxygen vacancies segregate near the single grain boundary of a YSZ bicrystal. in Physics, a M.S. Effects of QD Surface Coverage in Solid-State PbS Quantum Dot-Sensitized Solar Cells. Design of an atomic layer deposition reactor for hydrogen sulfide compatibility. Energy States of Ligand Capped Ag Nanoparticles: Relating Surface Plasmon Resonance to Work Function. An, J., Park, J. S., Koh, A. L., Lee, H. B., Jung, H. J., Schoonman, J., Sinclair, R., Gr, T. M., Prinz, F. B. Three-Dimensional Nanostructured Bilayer Solid Oxide Fuel Cell with 1.3 W/cm(2) at 450 C. B., Kim, J. Mustafa Fritz Fcee Jr, So Paulo, Brazil. View details for Web of Science ID 000288061500003, View details for DOI 10.1103/PhysRevB.83.052301, View details for Web of Science ID 000287358900001. Math Consultoria Med Trabalho in So Paulo, reviews by real people. Hammerick, K. E., James, A. W., Huang, Z., Prinz, F. B., Longaker, M. T. Kinetic Monte Carlo simulations of oxygen vacancy diffusion in a solid electrolyte: Computing the electrical impedance using the fluctuation-dissipation theorem, Sputtered Pt-Ru Alloys as Catalysts for Highly Concentrated Methanol Oxidation. Finally, reaction energetics are calculated for two likely reaction pathways over Pt clusters supported on different HOPG substrates. Ion conducting oxides are commonly used as electrolytes in electrochemical devices including solid oxide fuel cells and oxygen sensors. Before that, she served in several HR leadership roles at Foxconn Interconnect Technology, Inc., a multinational electronics manufacturer, and NUMMI, an automotive manufacturing joint venture between Toyota and General Motors. We report a new flame reduction method to generate controllable amount of oxygen vacancies in TiO2 nanowires that leads to nearly three times improvement in the photoelectrochemical (PEC) water-splitting performance. Prinz, F., B., Hanreich, G., Nicolics, J., Fasching, R. Automated fabrication of complex molded parts using mold shape deposition manufacturing. Culturing of human coronary artery endothelial cells (HCAECs) on the sample scaffolds demonstrated the biocompatibility of the developed process and the strong influence of high-resolution micro-geometries on HCAEC growth. For cells with unmixed and fully mixed cermet interlayers, the maximum power density was enhanced by a factor of 1.5 and 1.8 at 400 C, and by 2.3 and 2.7 at 450 C, respectively, when compared to control cells with no cermet interlayer. 2012 In 2012, QuantumScape began working with German automaker Volkswagen. A., Su, P., Prinz, F. B., Hemker, K. J. Our innovative battery cell technology can store energy more efficiently and reliably than today's lithium-ion batteries. An, J., Kim, Y., Park, J., Gur, Turgut, M., Prinz, Fritz, B. To lower the SOFC operating temperature, we fabricated a corrugated thin-film electrolyte membrane by nanosphere lithography and atomic layer deposition to reduce the polarization and ohmic losses at low temperatures. A Computational Comparison of Electron Transfer from Reduced Ferredoxin to Flavin Adenine Dinucleotide and a Gold Electrode. Discharged Charged Next-Generation Mobility Hammerick, K. E., Huang, Z., Sun, N., Lam, M. T., Prinz, F. B., Wu, J. C., Commons, G. W., Longaker, M. T. Gadolinia-doped Ceria Cathode Interlayer for Low Temperature Solid Oxide Fuel Cell, Low Temperature Direct Methanol Fuel Cell With YSZ Electrolyte. Shim, J. H., Park, J. S., Holme, T. P., Crabb, K., Lee, W., Kim, Y. In this work, ultra-thin (10 nm) platinum (Pt) cathode/catalyst layers were patterned by atomic layer deposition (ALD) and tested as catalytic electrodes (cathode) for low-temperature solid oxide fuel cells. QuantumScape was founded in 2010 by Jagdeep Singh, Tim Holme and Professor Fritz Prinz of Stanford University. A combined scanning tunneling microscope-atomic layer deposition tool. From least to most stiff, the order of cell stiffness was as follows: hASC-iPSC, human embryonic stem cell, fibroblast-iPSC, fibroblasts, and, lastly, as the stiffest cell, hASC. Stampfl, J., Leitgeb, R., Cheng, Y., L., Prinz, F., B. Finger, S., Terk, M., Subrahmanian, E., Kasabach, C., Prinz, F., Siewiorek, D. P., Smailagic, A., Stivoric, J., Weiss, L. Numerical and experimental investigation of interface bonding via substrate remelting of an impinging molten metal droplet. Photoluminescence measurements on the quantum dot/nanowire composites show a blue shift when the number of ALD cycles is decreased, suggesting a route to fabricate unique three-dimensional nanostructured devices such as solar cells. His focus is on micro and nano research in the field of energy, where he researches new materials and methods for efficient energy conversion and storage. The porous-template technique can produce NWs of various kinds of metals, with diameters down to 10-20 nm, which compete with multiwall carbon nanotube diameters. Kang, S., Johnston, James, P., Arima, T., Matsunaga, M., Tsuru, H., Prinz, Fritz, B. Open circuit voltages up to 660 mV (vs air) and power densities up to 1.3 W cm(-2) were measured at 550 C using H2 as fuel. Play over 265 million tracks for free on SoundCloud. An, J., Shim, J. H., Kim, Y., Park, J. S., Lee, W., Guer, T. M., Prinz, F. B. Fessler, J., Nickel, A., Link, G., Prinz, F., FUSSELL, P. The Compact Graph Format: An Interchange Standard for Solid Freeform Fabrication. Motoyama, M., Dasgupta, N., P., Prinz, F., B. Geometric Effects of Triple Phase Boundary in Solid Oxide Fuel Cells. Yelp is a fun and easy way to find, recommend and talk about what's great and not so great in So Paulo and beyond. Atomic Layer Deposition of Undoped TiO2 Exhibiting p-Type Conductivity. Micro-holes (10-100 microm), micro-channels, and micro-cavities were all created by micro-molding. However, the barrier to electron transfer in the strong coupling limit is computed to be small due to minimal geometry change between oxidized and reduced ferredoxin. Thermal behavior of a metal embedded fiber Bragg grating sensor, Miniature fuel cells with non-planar interface by microfabrication. [3] In 2012, QuantumScape began working with German automaker Volkswagen . Yttria-stabilized zirconia (YSZ) electrolyte membranes were surface modified by adding a 1 nm thin, high-yttria concentration YSZ film with the help of atomic layer deposition.