Effect of crystallization process on the electrical, and piezoelectric properties of PLA scaffolds
This paper investigates the fabrication and characterization of piezoelectric properties in electrospun polylactic acid (PLA) scaffolds for tissue engineering applications. The aim is to enhance the mechanical and electrical properties of the scaffolds to mimic native tissues. Thermo-mechanical proc...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-11-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785423026595 |
| _version_ | 1827346073270616064 |
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| author | Shima Hosseini Abbas Zarei-Hanzaki Hamid Reza Abedi Amirhossein Farahani |
| author_facet | Shima Hosseini Abbas Zarei-Hanzaki Hamid Reza Abedi Amirhossein Farahani |
| author_sort | Shima Hosseini |
| collection | DOAJ |
| description | This paper investigates the fabrication and characterization of piezoelectric properties in electrospun polylactic acid (PLA) scaffolds for tissue engineering applications. The aim is to enhance the mechanical and electrical properties of the scaffolds to mimic native tissues. Thermo-mechanical processing techniques, including post-processing under various temperature, weight, and time conditions, are employed to modify the scaffolds. The effects of these processing parameters on the morphological, piezoelectric, and crystalline properties of the PLA scaffolds are examined. The scaffolds exhibit partially parallel beadles fibers with varying degrees of alignment and thickness, depending on the applied post-processing parameters. These morphological features play a crucial role in enhancing the piezoelectric properties of the scaffolds. Differential scanning calorimetry (DSC) and X-ray diffraction (XRD) analyses demonstrate that thermo-mechanical processing promotes the formation of the α crystalline phase and increases the degree of crystallinity in the PLA scaffolds. The crystalline phase and orientation of the fibers are influenced by the applied weight, time, and temperature during post-processing. Furthermore, the study examines the electrical conductivity and ferroelectric properties of the PLA scaffolds. The results indicate enhanced piezoelectric properties in the scaffolds, as evidenced by the measured output voltages. However, ferroelectric behavior is not observed due to the absence of crystal symmetry in PLA. |
| first_indexed | 2024-03-07T23:22:54Z |
| format | Article |
| id | doaj.art-792b60dc50ac47209e9cd979bbe4bd9f |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-03-07T23:22:54Z |
| publishDate | 2023-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-792b60dc50ac47209e9cd979bbe4bd9f2024-02-21T05:26:49ZengElsevierJournal of Materials Research and Technology2238-78542023-11-012738153824Effect of crystallization process on the electrical, and piezoelectric properties of PLA scaffoldsShima Hosseini0Abbas Zarei-Hanzaki1Hamid Reza Abedi2Amirhossein Farahani3School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, P.O. Box: 11155-4563, Tehran, IranHot Deformation & Thermomechanical Processing Laboratory of High-Performance Engineering Materials, School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran, Iran; Corresponding author.School of Metallurgy & Materials Engineering, Iran University of Science and Technology (IUST), Tehran, Iran; Corresponding author.Hot Deformation & Thermomechanical Processing Laboratory of High-Performance Engineering Materials, School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran, Iran; Department of Materials Science and Engineering, Pennsylvania State University, University Park, PA 16802, USAThis paper investigates the fabrication and characterization of piezoelectric properties in electrospun polylactic acid (PLA) scaffolds for tissue engineering applications. The aim is to enhance the mechanical and electrical properties of the scaffolds to mimic native tissues. Thermo-mechanical processing techniques, including post-processing under various temperature, weight, and time conditions, are employed to modify the scaffolds. The effects of these processing parameters on the morphological, piezoelectric, and crystalline properties of the PLA scaffolds are examined. The scaffolds exhibit partially parallel beadles fibers with varying degrees of alignment and thickness, depending on the applied post-processing parameters. These morphological features play a crucial role in enhancing the piezoelectric properties of the scaffolds. Differential scanning calorimetry (DSC) and X-ray diffraction (XRD) analyses demonstrate that thermo-mechanical processing promotes the formation of the α crystalline phase and increases the degree of crystallinity in the PLA scaffolds. The crystalline phase and orientation of the fibers are influenced by the applied weight, time, and temperature during post-processing. Furthermore, the study examines the electrical conductivity and ferroelectric properties of the PLA scaffolds. The results indicate enhanced piezoelectric properties in the scaffolds, as evidenced by the measured output voltages. However, ferroelectric behavior is not observed due to the absence of crystal symmetry in PLA.http://www.sciencedirect.com/science/article/pii/S2238785423026595Poly lactic acidPiezoelectricCrystallizationTexture |
| spellingShingle | Shima Hosseini Abbas Zarei-Hanzaki Hamid Reza Abedi Amirhossein Farahani Effect of crystallization process on the electrical, and piezoelectric properties of PLA scaffolds Journal of Materials Research and Technology Poly lactic acid Piezoelectric Crystallization Texture |
| title | Effect of crystallization process on the electrical, and piezoelectric properties of PLA scaffolds |
| title_full | Effect of crystallization process on the electrical, and piezoelectric properties of PLA scaffolds |
| title_fullStr | Effect of crystallization process on the electrical, and piezoelectric properties of PLA scaffolds |
| title_full_unstemmed | Effect of crystallization process on the electrical, and piezoelectric properties of PLA scaffolds |
| title_short | Effect of crystallization process on the electrical, and piezoelectric properties of PLA scaffolds |
| title_sort | effect of crystallization process on the electrical and piezoelectric properties of pla scaffolds |
| topic | Poly lactic acid Piezoelectric Crystallization Texture |
| url | http://www.sciencedirect.com/science/article/pii/S2238785423026595 |
| work_keys_str_mv | AT shimahosseini effectofcrystallizationprocessontheelectricalandpiezoelectricpropertiesofplascaffolds AT abbaszareihanzaki effectofcrystallizationprocessontheelectricalandpiezoelectricpropertiesofplascaffolds AT hamidrezaabedi effectofcrystallizationprocessontheelectricalandpiezoelectricpropertiesofplascaffolds AT amirhosseinfarahani effectofcrystallizationprocessontheelectricalandpiezoelectricpropertiesofplascaffolds |