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Updated: Jun 7, 2025

Fabrication of Micropatterned Hydrogels for Neural Culture Systems using Dynamic Mask Projection Photolithography

Fabrication of Micropatterned Hydrogels for Neural Culture Systems using Dynamic Mask Projection Photolithography

Published on: February 11, 2011

Nano-enabled dynamically responsive living acellular hydrogels.

Roya Koshani¹, Sina Kheirabadi¹, Amir Sheikhi^1,2,3,4,5

¹Department of Chemical Engineering, The Pennsylvania State University, University Park, PA 16802, USA. sheikhi@psu.edu.

Materials Horizons

|November 15, 2024

Summary

This summary is machine-generated.

Researchers developed acellular nanocomposite living hydrogels (LivGels) that mimic extracellular matrices (ECMs). These bio-inspired materials exhibit shear-stiffening and self-healing properties, crucial for regulating cell behavior.

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Construction of Modular Hydrogel Sheets for Micropatterned Macro-scaled 3D Cellular Architecture

Construction of Modular Hydrogel Sheets for Micropatterned Macro-scaled 3D Cellular Architecture

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Last Updated: Jun 7, 2025

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Published on: February 11, 2011

Synthesis of PolyN-isopropylacrylamide Janus Microhydrogels for Anisotropic Thermo-responsiveness and Organophilic/Hydrophilic Loading Capability

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Published on: February 27, 2016

Construction of Modular Hydrogel Sheets for Micropatterned Macro-scaled 3D Cellular Architecture

Construction of Modular Hydrogel Sheets for Micropatterned Macro-scaled 3D Cellular Architecture

Published on: January 11, 2016

Area of Science:

Biomaterials Science
Nanotechnology
Tissue Engineering

Background:

Extracellular matrices (ECMs) are crucial for mammalian tissue structure and function.
ECMs exhibit shear-stiffening and self-healing, regulating cell fate and survival.
Mimicking these dynamic mechanical properties is key for advanced biomaterials.

Purpose of the Study:

To develop acellular nanocomposite living hydrogels (LivGels) that replicate ECM mechanical behaviors.
To engineer materials with tunable nonlinear mechanics, stiffness, and self-healing capabilities.
To utilize bio-based nanotechnology for creating advanced soft materials.

Main Methods:

Development of bifunctional dynamic linker nanoparticles (nLinkers) with cellulose chains and nanocrystals.
Formation of hydrogels via ionic and dynamic covalent hydrazone bonds.
Characterization of hydrogel mechanics, stiffness, and self-healing properties.

Main Results:

The developed LivGels mimic the shear-stiffening and self-healing properties of native ECMs.
nLinkers enabled precise control over nonlinear mechanics and stiffness within the biological range.
The nanocomposite hydrogels demonstrated significant self-healing capabilities.

Conclusions:

Acellular LivGels with ECM-like dynamic mechanical properties were successfully designed.
Bio-based nanotechnology offers a pathway to create advanced soft materials with complex functionalities.
This work advances the design of biomimetic materials for potential applications in regenerative medicine and beyond.