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Creating Complex Polyacrylamide Hydrogel Structures Using 3D Printing with Applications to Mechanobiology
Author(s) -
Wang Yuli,
Li David
Publication year - 2020
Publication title -
macromolecular bioscience
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.924
H-Index - 105
eISSN - 1616-5195
pISSN - 1616-5187
DOI - 10.1002/mabi.202000082
Subject(s) - polyacrylamide , self healing hydrogels , mechanobiology , microfluidics , nanotechnology , materials science , elasticity (physics) , porosity , biocompatible material , biomedical engineering , composite material , polymer chemistry , engineering , genetics , biology
Due to its favorable physical and chemical properties, including chemical inertness, low fouling by biological molecules, high porosity and permeability, optical transparency, and adjustable elasticity, polyacrylamide has found a wide range of biomedical and non‐biomedical applications. To further increase its versatility, this communication describes a simple method, using readily available reagents and equipment, for 3D printing polyacrylamide hydrogels at a resolution of 100–150 μm to create complex structures. As a demonstration of the application, the method is used for creating a lab‐on‐a‐chip cell culture surface with micropatterned stiffness, which then leads to the discovery of stiffness‐guided collective cell segregation distinct from durotaxis. The present technology is expected to unleash new applications such as the construction of biocompatible elastic medical devices and artificial organs.

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