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Updated: Jan 4, 2026
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Tissue Engineering: Construction of a Multicellular 3D Scaffold for the Delivery of Layered Cell Sheets
Published on: October 3, 2014
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Scaffold-free: A developing technique in field of tissue engineering
Adel Alblawi1, Achalla Sri Ranjani2, Humaira Yasmin3
1Mechanical Engineering Department, College of Engineering, Shaqra University, Dawadmi, P.O. 11911, Ar Riyadh, Saudi Arabia.
Computer Methods and Programs in Biomedicine
|November 4, 2019
Summary
Scaffold-free tissue engineering utilizes 3D printing and mathematical models for complex tissue development. A novel cell sheet bioprinting technique uses mechanosensing to differentiate mesenchymal stem cells (MSCs) into desired tissues.
Area of Science:
- Tissue Engineering
- Regenerative Medicine
- Biotechnology
Background:
- Scaffold-free tissue engineering offers solutions to rejection and failure issues common with traditional scaffolds.
- Advancements in 3D printing enable the creation of complex tissue constructs.
- Mathematical modeling is crucial for simulating and processing bio-printed models accurately.
Purpose of the Study:
- To review mathematical models and bioprinting techniques in scaffold-free tissue engineering.
- To explain the development of 3D tissue constructs using micro CT scan images.
- To propose a novel cell sheet-based bioprinting technique for tissue regeneration.
Main Methods:
- Review of mathematical models like Cellular Potts Model (CPM) and Cellular Particle Dynamic (CPD).
- Utilizing non-destructive imaging techniques such as computed tomography (CT) and magnetic resonance imaging (MRI).
- Development of a cell sheet-based bioprinting technique involving mechanosensing of mesenchymal stem cells (MSCs) on thermoresponsive polymers.
Main Results:
- Discussion of various mathematical models and their application in bioprinting.
- Explanation of 3D tissue construct development using micro CT scan data.
- Proposal of a novel technique leveraging mechanosensing to induce MSC differentiation for tissue generation.
Conclusions:
- Scaffold-free techniques, including 3D bioprinting and cell sheet technology, are advancing regenerative medicine.
- The proposed cell sheet-based bioprinting method shows potential for directed differentiation of MSCs.
- Mechanosensing stimulation is a key factor in triggering intracellular pathways for desired cell differentiation.
