scholarly journals Characterization of biodegradable poly(lactic acid) porous scaffolds prepared using selective enzymatic degradation for tissue engineering

RSC Advances ◽  
2017 ◽  
Vol 7 (54) ◽  
pp. 34063-34070 ◽  
Author(s):  
Ziqi Guo ◽  
Cheng Yang ◽  
Zuping Zhou ◽  
Shan Chen ◽  
Fan Li
Keyword(s):  
Tissue Engineering ◽  
Lactic Acid ◽  
Enzymatic Degradation ◽  
Poly Lactic Acid ◽  
Porous Scaffolds ◽  
Sem Images ◽  
Biodegradable Poly

SEM images of MEF cells on PLA scaffolds prepared by selective enzymatic degradation after 7 days of culture. The results demonstrated that MEF cells attached more easily to the surface than in the interior of the PLA scaffolds.

scholarly journals The combined plasticization of jute and tung oil anhydride for jute fiber reinforced poly(lactic acid) composites

2021 ◽  
pp. 096739112110576
Author(s):  
Ying Zhou ◽  
Can Chen ◽  
Lan Xie ◽  
Xiaolang Chen ◽  
Guangqiang Xiao ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Physical And Mechanical Properties ◽  
Complex Viscosity ◽  
Poly Lactic Acid ◽  
Melt Blending ◽  
Sem Images ◽  
Pseudoplastic Fluid ◽  
Tung Oil ◽  
Biodegradable Poly ◽  
The Impact

In this work, novel plasticizing biodegradable poly (lactic acid) (PLA) composites were prepared by melt blending of jute and tung oil anhydride (TOA), and the physical and mechanical properties of PLA/jute/TOA composites were tested and characterized. The impact strength of PLA/jute/TOA composites significantly increases with increasing the content of TOA. The SEM images of fracture surface of PLA/jute/TOA composites become rough after the incorporation of TOA. In addition, TOA changes the crystallization temperature and decomposition process of PLA/jute/TOA composites. With increasing the amount of TOA, the value of storage modulus (E′) of PLA/jute/TOA composites gradually increases. The complex viscosity (η*) values for all samples reduce obviously with increasing the frequency, which means that the pure PLA and PLA/jute/TOA composites is typical pseudoplastic fluid. This is attributed to the formation of crosslinking, which restricts the deformation of the composites.

Characterization of Electrospun Poly(Lactic Acid)/polyaniline Blend Nanofibers

2011 ◽  
Vol 332-334 ◽  
pp. 317-320 ◽  
Author(s):  
Hui Qin Zhang
Keyword(s):  
Lactic Acid ◽  
Composite Nanofibers ◽  
Weight Ratio ◽  
Electrospinning Process ◽  
Poly Lactic Acid ◽  
X Ray Diffraction ◽  
Sem Images ◽  
X Ray ◽  
Ft Ir

In this study, composite nanofibers of polyaniline doped with dodecylbenzene sulfonic acid (PANI-DBSA) and Poly(lactic acid) (PLA) were prepared via an electrospinning process. The surface morphology, thermal properties and crystal structure of PLA/PANI-DBSA nanofibers are characterized using Fourier transform infrared spectroscopy (FT-IR), wide-angle x-ray diffraction (WAXD) and scanning electron microscopy (SEM). SEM images showed that the morphology and diameter of the nanofibers were affected by the weight ratio of blend solution.

scholarly journals In Vitro Characterization of Poly(Lactic Acid)/ Poly(Hydroxybutyrate)/ Thermoplastic Starch Blends for Tissue Engineering Application

2021 ◽  
Vol 30 ◽  
pp. 096368972110210
Author(s):  
Martina Culenova ◽  
Ivana Birova ◽  
Pavol Alexy ◽  
Paulina Galfyova ◽  
Andreas Nicodemou ◽  
...  
Keyword(s):  
Tissue Engineering ◽  
Lactic Acid ◽  
Thermoplastic Starch ◽  
Biological Behavior ◽  
Poly Lactic Acid ◽  
Cytotoxicity Test ◽  
In Vitro Characterization ◽  
Custom Made

Complex in vitro characterization of a blended material based on Poly(Lactic Acid), Poly(Hydroxybutyrate), and Thermoplastic Starch (PLA/PHB/TPS) was performed in order to evaluate its potential for application in the field of tissue engineering. We focused on the biological behavior of the material as well as its mechanical and morphological properties. We also focused on the potential of the blend to be processed by the 3D printer which would allow the fabrication of the custom-made scaffold. Several blends recipes were prepared and characterized. This material was then studied in the context of scaffold fabrication. Scaffold porosity, wettability, and cell-scaffold interaction were evaluated as well. MTT test and the direct contact cytotoxicity test were applied in order to evaluate the toxic potential of the blended material. Biocompatibility studies were performed on the human chondrocytes. According to our results, we assume that material had no toxic effect on the cell culture and therefore could be considered as biocompatible. Moreover, PLA/PHB/TPS blend is applicable for 3D printing. Printed scaffolds had highly porous morphology and were able to absorb water as well. In addition, cells could adhere and proliferate on the scaffold surface. We conclude that this blend has potential for scaffold engineering.

Production and Characterization of Poly (Lactic Acid)/Nanostructured Carboapatite for 3D Printing of Bioactive Scaffolds for Bone Tissue Engineering

2021 ◽  
Author(s):  
Thiago Nunes Palhares ◽  
Lívia Rodrigues de Menezes ◽  
Gabriela Soares Kronemberger ◽  
Priscila Grion de Miranda Borchio ◽  
Leandra Santos Baptista ◽  
...  
Keyword(s):  
Tissue Engineering ◽  
Lactic Acid ◽  
3D Printing ◽  
Bone Tissue Engineering ◽  
Bone Tissue ◽  
Poly Lactic Acid ◽  
Bioactive Scaffolds

Thermal Characterization of Biodegradable Poly (Lactic Acid)/Clay Nanocomposites

2009 ◽  
pp. 219-225 ◽  
Author(s):  
Parakalan Krishnamachari ◽  
Jian Zhang ◽  
Jizhong Yan ◽  
Abolghasem Shahbazi ◽  
Leonard Uitenham ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Thermal Characterization ◽  
Poly Lactic Acid ◽  
Clay Nanocomposites ◽  
Biodegradable Poly
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