Medical Design Briefs - January 2023 - 35
Twin Cities department of chemical
engineering and materials science.
" We took the idea that plants and fungi
add material at the end of their
bodies, either at their root tips or at
their new shoots, and we translated
that to an engineering system. "
Plants use water to transport the
building blocks that get transformed
into solid roots as the plant grows
outward. The researchers were able
to mimic this process with synthetic
material using a technique called
photopolymerization, which uses light
to transform liquid monomers into a
solid material. Using this technology,
the soft robot can more easily
navigate obstacles and winding paths
without having to drag any solid material
behind it.
of us could have done this alone. This
University of Minnesota Twin Cities researchers have developed
a plant-inspired extrusion process that allows
soft robots to build their own solid bodies from liquid to
navigate hard-to-reach places and complicated terrain.
(Credit: University of Minnesota)
This new process also has applications
in manufacturing. Since the researchers'
technique only uses liquid and light,
operations that use heat, pressure, and
expensive machinery to create and
shape materials might not be needed.
" A very important part of this project
is that we have material scientists, chemical
engineers, and robotic engineers all
involved, " Ellison says. " By putting all of
our different expertise together, we really
brought something unique to this
project, and I'm confident that not one
is a great example of how collaboration
enables scientists to address really
hard fundamental problems while
also having a technological impact. "
The paper is published in the Proceedings
of the National Academy of Sciences
of the United States of America
(PNAS). The research was funded by
the National Science Foundation. In
addition to Ellison and Hausladen, the
research team included University of
Minnesota Department of Chemical
Engineering and Materials Science researchers
Boran Zhao (postdoctoral
researcher) and Lorraine Francis (College
of Science and Engineering Distinguished
Professor); and University of
Minnesota Department of Mechanical
Engineering researchers Tim Kowalewski
(associate professor) and Matthew Kubala
(graduate student).
For more information, visit https://
cse.umn.edu. Contact: Rhonda Zurn,
College of Science and Engineering,
rzurn@umn.edu.
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Medical Design Briefs, January 2023
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Medical Design Briefs - January 2023
Table of Contents for the Digital Edition of Medical Design Briefs - January 2023
Medical Design Briefs - January 2023 - CV1A
Medical Design Briefs - January 2023 - CV1B
Medical Design Briefs - January 2023 - Cov1
Medical Design Briefs - January 2023 - Cov2
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