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Updated: Aug 9, 2025

Using Multilayered Hydrogel Bioink in Three-Dimensional Bioprinting for Homogeneous Cell Distribution

Using Multilayered Hydrogel Bioink in Three-Dimensional Bioprinting for Homogeneous Cell Distribution

Published on: May 2, 2020

Advances in Gelatin Bioinks to Optimize Bioprinted Cell Functions.

Saad Asim¹, Tanveer A Tabish², Usman Liaqat³

¹Department of Biomedical Engineering, Michigan Technological University, Houghton, MI, 49931, USA.

Advanced Healthcare Materials

|February 21, 2023

Summary

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This summary is machine-generated.

Gelatin bioinks are advancing 3D cell culture by using reversible cross-linking to mimic the dynamic extracellular matrix (ECM). This improves bioprinted cell function and paves the way for better therapeutic outcomes.

Area of Science:

Biomaterials Science
Tissue Engineering
Bioprinting Technology

Background:

Gelatin is a key bioprinting biomaterial due to cell adhesion and growth properties.
Covalent cross-linking stabilizes gelatin structures but fails to mimic the dynamic extracellular matrix (ECM).
This limitation restricts the functionality of bioprinted cells within engineered tissues.

Purpose of the Study:

To review advancements in gelatin bioink formulations for 3D cell culture.
To critically analyze bioprinting and cross-linking techniques for optimizing cell function.
To explore novel cross-linking strategies that better emulate the ECM.

Main Methods:

Analysis of current literature on gelatin bioinks and 3D cell culture.
Review of bioprinting and cross-linking methodologies.

Keywords:

3D bioprinting covalent cross-linking extracellular matrix gelatin bioinks stress relaxation viscoelasticity

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Focus on strategies enhancing bioprinted cell functions.

Main Results:

Double network bioinks and reversible cross-linking methods offer improved ECM mimicry.
New cross-linking chemistries can recapitulate ECM viscoelasticity and enable advanced cell functions.
Current gelatin bioinks are less explored in terms of advanced cell function optimization.

Conclusions:

Reversible cross-linking in gelatin bioinks is crucial for mimicking the dynamic ECM.
Future gelatin bioinks should prioritize cell-matrix interactions for enhanced therapeutic potential.
Validation against 3D cell culture standards is necessary for improved outcomes.