This image was taken by an electron microscope, which allows us to clearly see the structure of our JBNm made on the ISS. The scale bar on the bottom right represents 800 nanometers, which is about 1/62500 the width of a human hair. You can see the bundles of our JBNm are thick and interspersed, which we believe is leading to better outcomes for cells. These bundles cannot get this thick when we make the JBNm on Earth.

jsc2025e036191 (4/4/2025) --- An electron microscope image taken of a Janus Base Nanomaterial (JBNm) made on the International Space Station. The scale bar on the bottom represents 1/62500 the width of a human hair, making the JBNm bundles thick and interspersed, lead to better outcomes for cells. Biomimetic Fabrication of Multi-Functional DNA-Inspired Nanomaterials via Controlled Self-assembly in Space (DNA Nano Therapeutics-Mission 2) continues prior research on in-space manufacturing of nanomaterials that mimic DNA and have applications for vaccines and regenerative medicine. Image courtesy of University of Connecticut.

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