Solution-Based Processing for Scaffold Fabrication in Tissue Engineering Applications: A Brief Review

The fabrication of 3D scaffolds is under wide investigation in tissue engineering (TE) because of its incessant development of new advanced technologies and the improvement of traditional processes. Currently, scientific and clinical research focuses on scaffold characterization to restore the funct...

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Main Authors: Elisa Capuana, Francesco Lopresti, Francesco Carfì Pavia, Valerio Brucato, Vincenzo La Carrubba
Format: Article
Language:English
Published: MDPI AG 2021-06-01
Series:Polymers
Subjects:
Online Access:https://www.mdpi.com/2073-4360/13/13/2041
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author Elisa Capuana
Francesco Lopresti
Francesco Carfì Pavia
Valerio Brucato
Vincenzo La Carrubba
author_facet Elisa Capuana
Francesco Lopresti
Francesco Carfì Pavia
Valerio Brucato
Vincenzo La Carrubba
author_sort Elisa Capuana
collection DOAJ
description The fabrication of 3D scaffolds is under wide investigation in tissue engineering (TE) because of its incessant development of new advanced technologies and the improvement of traditional processes. Currently, scientific and clinical research focuses on scaffold characterization to restore the function of missing or damaged tissues. A key for suitable scaffold production is the guarantee of an interconnected porous structure that allows the cells to grow as in native tissue. The fabrication techniques should meet the appropriate requirements, including feasible reproducibility and time- and cost-effective assets. This is necessary for easy processability, which is associated with the large range of biomaterials supporting the use of fabrication technologies. This paper presents a review of scaffold fabrication methods starting from polymer solutions that provide highly porous structures under controlled process parameters. In this review, general information of solution-based technologies, including freeze-drying, thermally or diffusion induced phase separation (TIPS or DIPS), and electrospinning, are presented, along with an overview of their technological strategies and applications. Furthermore, the differences in the fabricated constructs in terms of pore size and distribution, porosity, morphology, and mechanical and biological properties, are clarified and critically reviewed. Then, the combination of these techniques for obtaining scaffolds is described, offering the advantages of mimicking the unique architecture of tissues and organs that are intrinsically difficult to design.
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spelling doaj.art-abe47ad66acc45a4a9de9c217139a4182023-11-22T01:13:36ZengMDPI AGPolymers2073-43602021-06-011313204110.3390/polym13132041Solution-Based Processing for Scaffold Fabrication in Tissue Engineering Applications: A Brief ReviewElisa Capuana0Francesco Lopresti1Francesco Carfì Pavia2Valerio Brucato3Vincenzo La Carrubba4Department of Engineering, University of Palermo, RU INSTM, Viale delle Scienze, 90128 Palermo, ItalyDepartment of Engineering, University of Palermo, RU INSTM, Viale delle Scienze, 90128 Palermo, ItalyDepartment of Engineering, University of Palermo, RU INSTM, Viale delle Scienze, 90128 Palermo, ItalyDepartment of Engineering, University of Palermo, RU INSTM, Viale delle Scienze, 90128 Palermo, ItalyDepartment of Engineering, University of Palermo, RU INSTM, Viale delle Scienze, 90128 Palermo, ItalyThe fabrication of 3D scaffolds is under wide investigation in tissue engineering (TE) because of its incessant development of new advanced technologies and the improvement of traditional processes. Currently, scientific and clinical research focuses on scaffold characterization to restore the function of missing or damaged tissues. A key for suitable scaffold production is the guarantee of an interconnected porous structure that allows the cells to grow as in native tissue. The fabrication techniques should meet the appropriate requirements, including feasible reproducibility and time- and cost-effective assets. This is necessary for easy processability, which is associated with the large range of biomaterials supporting the use of fabrication technologies. This paper presents a review of scaffold fabrication methods starting from polymer solutions that provide highly porous structures under controlled process parameters. In this review, general information of solution-based technologies, including freeze-drying, thermally or diffusion induced phase separation (TIPS or DIPS), and electrospinning, are presented, along with an overview of their technological strategies and applications. Furthermore, the differences in the fabricated constructs in terms of pore size and distribution, porosity, morphology, and mechanical and biological properties, are clarified and critically reviewed. Then, the combination of these techniques for obtaining scaffolds is described, offering the advantages of mimicking the unique architecture of tissues and organs that are intrinsically difficult to design.https://www.mdpi.com/2073-4360/13/13/2041scaffoldtissue engineeringprocessingelectrospinningphase separationfreeze-drying
spellingShingle Elisa Capuana
Francesco Lopresti
Francesco Carfì Pavia
Valerio Brucato
Vincenzo La Carrubba
Solution-Based Processing for Scaffold Fabrication in Tissue Engineering Applications: A Brief Review
Polymers
scaffold
tissue engineering
processing
electrospinning
phase separation
freeze-drying
title Solution-Based Processing for Scaffold Fabrication in Tissue Engineering Applications: A Brief Review
title_full Solution-Based Processing for Scaffold Fabrication in Tissue Engineering Applications: A Brief Review
title_fullStr Solution-Based Processing for Scaffold Fabrication in Tissue Engineering Applications: A Brief Review
title_full_unstemmed Solution-Based Processing for Scaffold Fabrication in Tissue Engineering Applications: A Brief Review
title_short Solution-Based Processing for Scaffold Fabrication in Tissue Engineering Applications: A Brief Review
title_sort solution based processing for scaffold fabrication in tissue engineering applications a brief review
topic scaffold
tissue engineering
processing
electrospinning
phase separation
freeze-drying
url https://www.mdpi.com/2073-4360/13/13/2041
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AT francescolopresti solutionbasedprocessingforscaffoldfabricationintissueengineeringapplicationsabriefreview
AT francescocarfipavia solutionbasedprocessingforscaffoldfabricationintissueengineeringapplicationsabriefreview
AT valeriobrucato solutionbasedprocessingforscaffoldfabricationintissueengineeringapplicationsabriefreview
AT vincenzolacarrubba solutionbasedprocessingforscaffoldfabricationintissueengineeringapplicationsabriefreview