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Related Experiment Video

Updated: May 23, 2025

Author Spotlight: Studying Bacterial Growth in 3D Hydrogel Matrices

Author Spotlight: Studying Bacterial Growth in 3D Hydrogel Matrices

Published on: January 19, 2024

Morphogenic Growth 3D Printing.

Yun Seong Kim^1,2, Minjiang Zhu^1,3, Mohammad Tanver Hossain^1,2

¹Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.

Advanced Materials (Deerfield Beach, Fla.)

|March 10, 2025

Summary

This summary is machine-generated.

Growth printing (GP) is a novel 3D printing method inspired by nature. This process uses a self-propagating curing front for rapid, energy-efficient production of complex polymeric parts.

Keywords:

3D printing additive manufacturing bio‐inspired manufacturing frontal polymerization reaction‐diffusion

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Area of Science:

Materials Science
Polymer Chemistry
Additive Manufacturing

Background:

Nature's morphogenesis inspires new manufacturing techniques.
Existing 3D printing methods face limitations in speed and energy efficiency.

Purpose of the Study:

To introduce and characterize a novel 3D printing process called growth printing (GP).
To demonstrate the capability of GP to produce complex 3D polymeric parts with controlled morphology.
To highlight the energy savings and high printing speeds of GP.

Main Methods:

Utilizing a self-propagating, exothermic polymerization front driven by dicyclopentadiene (DCPD).
Employing a heated initiator to trigger and control frontal polymerization and object withdrawal.
Developing an inverse design algorithm to model the reaction-diffusion-driven solidification process.

Main Results:

Achieved a curing front propagation speed of 1 mm s^-1.
Demonstrated control over 3D part morphology through initiator motion trajectory.
Showcased substantial energy savings and high printing speeds compared to conventional methods.

Conclusions:

Growth printing (GP) offers a bio-inspired, efficient, and rapid approach to 3D printing polymeric materials.
The process allows for precise control over the morphology of printed objects.
GP presents a promising alternative for sustainable and high-throughput additive manufacturing.