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Jonathan Weiss
3D Printing - Biofabrication - Engineering

About


I'm a 5th-year Bioengineering Ph.D. candidate at Stanford developing low-cost, high-throughput 3D-printing technologies for biofabrication of cardiac tissues in Mark Skylar-Scott's 3D-Bioprinting Lab.

I have extensive experience in 3D computer-aided design (CAD), mechanical device prototyping, bioprinting, and tissue engineering. I use 3D bioprinting technologies, particularly novel multinozzle printheads, to fabricate soft-material structures such as silicone elastomers, photocurable hydrogels, and cell-laden engineered tissues. The biological applications of my fabrication work include the printing of custom-geometry heart valves and small-scale cardiac and stem cell tissue models, which I use to study function, growth, and maturation.

I am currently seeking a full-time R&D position beginning in fall 2025 where I can blend these engineering disciplines to develop impactful technologies with applications in biomedical engineering, pharmaceuticals, environmental sustainability, and beyond.

Publications


Portfolio


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A low-cost ($300), open-source 3D printer for multimaterial and high-throughput direct ink writing. Designed from scratch and built using 3D-printed, laser-cut, and off-the-shelf components. Dozens have been assembled and shared with other research groups. See publication, and click image to learn more.
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An 8x4 (32) array multinozzle printhead for high-throughput embedded 3D printing. Printhead is 3D-printed using stereolithography and biocompatible resins. See video below, and click image for more information on printhead design.
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An array of 32 tree models printed with Carbopol in 3 minutes using the 32-multinozzle. See video below.
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Multimaterial gradient 3D printing of the Stanford "S" logo from white to yellow with Pluronic F-127 using a mixing nozzle.
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Multimaterial multinozzle 3D printing of an auxetic structure using silicnes of varying stiffness. See video below for actuation of this structure.
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Embedded 3D printing of the Stanford dragon using Carbopol.

Videos

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Other


In my free time, I enjoy guitar 🎸, chess 👑, running 🏃‍♂️, and Olympic weightlifting 🏋️.

I also tutor up to college-level calculus, physics, and other mathematics. Feel free to contact me with inquiries.