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Du R, Zhao B, Luo K, Wang MX, Yuan Q, Yu LX, Yang KK, Wang YZ. Shape Memory Polyester Scaffold Promotes Bone Defect Repair through Enhanced Osteogenic Ability and Mechanical Stability. ACS APPLIED MATERIALS & INTERFACES 2023; 15:42930-42941. [PMID: 37643157 DOI: 10.1021/acsami.3c06902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
Bone tissue engineering involving scaffolds is recognized as the ideal approach for bone defect repair. However, scaffold materials exhibit several limitations, such as low bioactivity, less osseointegration, and poor processability, for developing bone tissue engineering. Herein, a bioactive and shape memory bone scaffold was fabricated using the biodegradable polyester copolymer's four-dimensional fused deposition modeling. The poly(ε-caprolactone) segment with a transition temperature near body temperature was selected as the molecular switch to realize the shape memory effect. Another copolymer segment, i.e., poly(propylene fumarate), was introduced for post-cross-linking and improving the regulation effect of the resulting bioadaptable scaffold on osteogenesis. To mimic the porous structures and mechanical properties of the native spongy bone, the pore size of the printed scaffold was set as ∼300 μm, and a comparable compression modulus was achieved after photo-cross-linking. Compared with the pristine poly(ε-caprolactone), the scaffold made from fumarate-functionalized copolymer considerably enhanced the adhesion and osteogenic differentiation of MC3T3-E1 cells in vitro. In vivo experiments indicated that the bioactive shape memory scaffold could quickly adapt to the defect geometry during implantation via shape change, and bone regeneration at the defect site was remarkably promoted, providing a promising strategy to treat bone defects in the clinic, substantial bone defects with irregular geometry.
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Affiliation(s)
- Rui Du
- The Collaborative Innovation Center for Eco-Friendly and Fire-Safety Polymeric Materials (MoE), National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), College of Chemistry, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610064, China
| | - Bin Zhao
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610064, China
| | - Kun Luo
- The Collaborative Innovation Center for Eco-Friendly and Fire-Safety Polymeric Materials (MoE), National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), College of Chemistry, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610064, China
| | - Man-Xi Wang
- The Collaborative Innovation Center for Eco-Friendly and Fire-Safety Polymeric Materials (MoE), National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), College of Chemistry, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610064, China
| | - Quan Yuan
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610064, China
| | - Lei-Xiao Yu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610064, China
| | - Ke-Ke Yang
- The Collaborative Innovation Center for Eco-Friendly and Fire-Safety Polymeric Materials (MoE), National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), College of Chemistry, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610064, China
| | - Yu-Zhong Wang
- The Collaborative Innovation Center for Eco-Friendly and Fire-Safety Polymeric Materials (MoE), National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), College of Chemistry, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610064, China
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2
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van Rijt A, Stefanek E, Valente K. Preclinical Testing Techniques: Paving the Way for New Oncology Screening Approaches. Cancers (Basel) 2023; 15:4466. [PMID: 37760435 PMCID: PMC10526899 DOI: 10.3390/cancers15184466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 08/24/2023] [Accepted: 08/31/2023] [Indexed: 09/29/2023] Open
Abstract
Prior to clinical trials, preclinical testing of oncology drug candidates is performed by evaluating drug candidates with in vitro and in vivo platforms. For in vivo testing, animal models are used to evaluate the toxicity and efficacy of drug candidates. However, animal models often display poor translational results as many drugs that pass preclinical testing fail when tested with humans, with oncology drugs exhibiting especially poor acceptance rates. The FDA Modernization Act 2.0 promotes alternative preclinical testing techniques, presenting the opportunity to use higher complexity in vitro models as an alternative to in vivo testing, including three-dimensional (3D) cell culture models. Three-dimensional tissue cultures address many of the shortcomings of 2D cultures by more closely replicating the tumour microenvironment through a combination of physiologically relevant drug diffusion, paracrine signalling, cellular phenotype, and vascularization that can better mimic native human tissue. This review will discuss the common forms of 3D cell culture, including cell spheroids, organoids, organs-on-a-chip, and 3D bioprinted tissues. Their advantages and limitations will be presented, aiming to discuss the use of these 3D models to accurately represent human tissue and as an alternative to animal testing. The use of 3D culture platforms for preclinical drug development is expected to accelerate as these platforms continue to improve in complexity, reliability, and translational predictivity.
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Affiliation(s)
- Antonia van Rijt
- Biomedical Engineering Program, University of Victoria, Victoria, BC V8P 5C2, Canada;
| | - Evan Stefanek
- VoxCell BioInnovation Inc., Victoria, BC V8T 5L2, Canada;
| | - Karolina Valente
- Biomedical Engineering Program, University of Victoria, Victoria, BC V8P 5C2, Canada;
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Wang R, Damanik F, Kuhnt T, Jaminon A, Hafeez S, Liu H, Ippel H, Dijkstra PJ, Bouvy N, Schurgers L, Ten Cate AT, Dias A, Moroni L, Baker MB. Biodegradable Poly(ester) Urethane Acrylate Resins for Digital Light Processing: From Polymer Synthesis to 3D Printed Tissue Engineering Constructs. Adv Healthc Mater 2023. [PMID: 36864621 DOI: 10.1002/adhm.202202648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/04/2023]
Abstract
Digital light processing (DLP) is an accurate and fast additive manufacturing technique to produce a variety of products, from patient-customized biomedical implants to consumer goods. However, DLP's use in tissue engineering has been hampered due to a lack of biodegradable resin development. Herein, a library of biodegradable poly(esters) capped with urethane acrylate (with variations in molecular weight) is investigated as the basis for DLP printable resins for tissue engineering. The synthesized oligomers show good printability and are capable of creating complex structures with mechanical moduli close to those of medium-soft tissues (1-3 MPa). While fabricated films from different molecular weight resins show few differences in surface topology, wettability, and protein adsorption, the adhesion and metabolic activity of NCTC clone 929 (L929) cells and human dermal fibroblasts (HDFs) are significantly different. Resins from higher molecular weight oligomers provide greater cell adhesion and metabolic activity. Furthermore, these materials show compatibility in a subcutaneous in vivo pig model. These customizable, biodegradable, and biocompatible resins show the importance of molecular tuning and open up new possibilities for the creation of biocompatible constructs for tissue engineering.
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Affiliation(s)
- Rong Wang
- Department of Complex Tissue Regeneration, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Maastricht, 6229 ER, The Netherlands
| | - Febriyani Damanik
- Department of Complex Tissue Regeneration, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Maastricht, 6229 ER, The Netherlands
| | - Tobias Kuhnt
- Department of Complex Tissue Regeneration, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Maastricht, 6229 ER, The Netherlands
| | - Armand Jaminon
- School for Cardiovascular Diseases, Faculty of Health Medicine and Life Sciences, Maastricht University, Maastricht, 6229 ER, The Netherlands
| | - Shahzad Hafeez
- Department of Complex Tissue Regeneration, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Maastricht, 6229 ER, The Netherlands
| | - Hong Liu
- Department of Surgery, Maastricht University Medical Center, Maastricht, 6229 HX, The Netherlands
| | - Hans Ippel
- School for Cardiovascular Diseases, Faculty of Health Medicine and Life Sciences, Maastricht University, Maastricht, 6229 ER, The Netherlands
| | - Pieter J Dijkstra
- Department of Complex Tissue Regeneration, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Maastricht, 6229 ER, The Netherlands
| | - Nicole Bouvy
- Department of Surgery, Maastricht University Medical Center, Maastricht, 6229 HX, The Netherlands
| | - Leon Schurgers
- School for Cardiovascular Diseases, Faculty of Health Medicine and Life Sciences, Maastricht University, Maastricht, 6229 ER, The Netherlands
| | - A Tessa Ten Cate
- Department of Materials for Additive Manufacturing, TNO, P.O. Box 6235, Eindhoven, 5600 HE, The Netherlands.,Department of Additive Manufacturing, Brightlands Materials Center, Urmonderbaan 22, Geleen, 6167 RD, The Netherlands
| | - Aylvin Dias
- DSM Biomedical, DSM, Koestraat 1, Geleen, 6167 RA, The Netherlands
| | - Lorenzo Moroni
- Department of Complex Tissue Regeneration, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Maastricht, 6229 ER, The Netherlands
| | - Matthew B Baker
- Department of Complex Tissue Regeneration, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Maastricht, 6229 ER, The Netherlands
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Yu Y, Zheng Y, Liang J, Sun X, Cao Y, Pan P, Wei Z. Temperature-Dependent Polymorphic Crystallization and Crystalline Structure of Unsaturated Polyesters Derived from cis-2-Butene-1,4-diol. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c01698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Yang Yu
- Department of Polymer Science and Materials, School of Chemical Engineering, Dalian University of Technology, Dalian116024, China
- College of Environmental and Chemical Engineering, Dalian University, Dalian116622, China
| | - Ying Zheng
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou310027, China
- Institute of Zhejiang University-Quzhou, 78 Jiuhua Boulevard North, Quzhou324000, China
| | - Junhao Liang
- Advanced Institute for Soft Matter Science and Technology (AISMST), School of Emergent Soft Matter, South China University of Technology, 510640Guangzhou, China
| | - Xiaoli Sun
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing100029, China
| | - Yan Cao
- Advanced Institute for Soft Matter Science and Technology (AISMST), School of Emergent Soft Matter, South China University of Technology, 510640Guangzhou, China
| | - Pengju Pan
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 38 Zheda Road, Hangzhou310027, China
- Institute of Zhejiang University-Quzhou, 78 Jiuhua Boulevard North, Quzhou324000, China
| | - Zhiyong Wei
- Department of Polymer Science and Materials, School of Chemical Engineering, Dalian University of Technology, Dalian116024, China
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5
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Moon SH, Choi HN, Yang YJ. Natural/Synthetic Polymer Materials for Bioink Development. BIOTECHNOL BIOPROC E 2022. [DOI: 10.1007/s12257-021-0418-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Petersen SR, Yu J, Yeazel TR, Bass G, Alamdari A, Becker ML. Degradable, Photochemically Printable Poly(propylene fumarate)-Based ABA Triblock Elastomers. Biomacromolecules 2022; 23:2388-2395. [PMID: 35512280 DOI: 10.1021/acs.biomac.2c00151] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Additive manufacturing is rapidly advancing tissue engineering, but the scope of its clinical translation is limited by a lack of materials designed to meet specific mechanical properties and resorption timelines. Materials that are printable via photochemical cross-linking, fully degradable, and elastomeric have proven to be particularly challenging to develop. Herein, we report the synthesis of a series of poly(propylene fumarate-b-γ-methyl-ε-caprolactone-b-propylene fumarate) ABA triblock polymers using sequential ring-opening polymerization and ring-opening copolymerization. When cross-linked photochemically using a continuous liquid interface production digital light processing Carbon M2 printer, these ABA-type triblock copolymers are durable elastomers with tunable degradation and elastic properties. The polymers are shown to undergo slow, hydrolytic degradation in vitro with minimal loss of mechanical performance during degradation.
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Affiliation(s)
- Shannon R Petersen
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
| | - Jiayi Yu
- 21MedTech, LLC, Durham, North Carolina 27703, United States
| | - Taylor R Yeazel
- Department of Mechanical Engineering & Materials Science, Duke University, Durham, North Carolina 27708, United States
| | - Garrett Bass
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
| | - Aslan Alamdari
- 21MedTech, LLC, Durham, North Carolina 27703, United States
| | - Matthew L Becker
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States.,Department of Mechanical Engineering & Materials Science, Duke University, Durham, North Carolina 27708, United States.,Departments of Biomedical Engineering and Orthopedic Surgery, Duke University, Durham, North Carolina 27708, United States
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7
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Shin Y, Becker ML. Gradient versus End-Capped Degradable Polymer Sequence Variations Result in Stiff to Elastic Photochemically 3D-Printed Substrates. Biomacromolecules 2022; 23:2106-2115. [PMID: 35471033 DOI: 10.1021/acs.biomac.2c00103] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Additive manufacturing affords the construction of complex scaffolds for tissue engineering, yet the limitation in material choice remains a barrier to clinical translation. Herein, a series of poly(propylene fumarate-co-propylene succinate) were synthesized using both one-pot and sequential ring-opening copolymerization reactions. Continuous liquid interface production-based photochemical 3D printing utilizing thiol-ene chemistry was used to fabricate precise structures with improved build time over the traditional poly(propylene fumarate)/diethyl fumarate 3D printing processes. Significantly, the materials do not exhibit a yield point under tension and Young's modulus of the 3D printed products can be tuned by more than 2 orders of magnitude (0.6-110 MPa) using polymer composition and the degree of polymerization. Printed constructs degrade fully under hydrolytic conditions and degradation rates can be tailored using polymer composition, polymer sequence, and resin formulation.
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Affiliation(s)
- Yongjun Shin
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
| | - Matthew L Becker
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States.,Thomas Lord Department of Mechanical Engineering & Materials Science, Department of Biomedical Engineering, Department of Orthopaedic Surgery, Duke University, Durham, North Carolina 27708, United States
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8
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Wang L, Chen B, Ji M, Guo D, He X, Lashari NUR, Fu C, Zheng J. Development and properties of
UV
‐cured poly (propylene fumarate)/hydroxyapatite composites coatings as potential application for bone adhesive tape. J Appl Polym Sci 2022. [DOI: 10.1002/app.52289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Liang Wang
- Xi’an Key Laboratory of Textile Composites, School of Materials Science and Engineering Xi'an Polytechnic University Xi'an China
- State Key Laboratory for Mechanical Behavior of Materials School of Materials Science and Engineering, Xi'an Jiaotong University Xi'an China
| | - Bing‐yu Chen
- Xi’an Key Laboratory of Textile Composites, School of Materials Science and Engineering Xi'an Polytechnic University Xi'an China
| | - Meng‐hao Ji
- Xi’an Key Laboratory of Textile Composites, School of Materials Science and Engineering Xi'an Polytechnic University Xi'an China
| | - Da‐gang Guo
- State Key Laboratory for Mechanical Behavior of Materials School of Materials Science and Engineering, Xi'an Jiaotong University Xi'an China
| | - Xin‐hai He
- Xi’an Key Laboratory of Textile Composites, School of Materials Science and Engineering Xi'an Polytechnic University Xi'an China
| | - Najeeb ur Rehman Lashari
- Xi’an Key Laboratory of Textile Composites, School of Materials Science and Engineering Xi'an Polytechnic University Xi'an China
| | - Chong Fu
- Xi’an Key Laboratory of Textile Composites, School of Materials Science and Engineering Xi'an Polytechnic University Xi'an China
| | - Jing Zheng
- Shaanxi Key Laboratory of Biomedical Metal Materials Northwest Institute for Non‐ferrous Metal Research Xi'an China
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9
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Muralidharan A, McLeod RR, Bryant SJ. Hydrolytically degradable Poly (β-amino ester) resins with tunable degradation for 3D printing by projection micro-stereolithography. ADVANCED FUNCTIONAL MATERIALS 2022; 32:2106509. [PMID: 35813039 PMCID: PMC9268535 DOI: 10.1002/adfm.202106509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Applications of 3D printing that range from temporary medical devices to environmentally responsible manufacturing would benefit from printable resins that yield polymers with controllable material properties and degradation behavior. Towards this goal, poly(β-amino ester) (PBAE)-diacrylate resins were investigated due to the wide range of available chemistries and tunable material properties. PBAE-diacrylate resins were synthesized from hydrophilic and hydrophobic chemistries and with varying electron densities on the ester bond to provide control over degradation. Hydrophilic PBAE-diacrylates led to degradation behaviors characteristic of bulk degradation while hydrophobic PBAE-diacrylates led to degradation behaviors dominated initially by surface degradation and then transitioned to bulk degradation. Depending on chemistry, the crosslinked PBAE-polymers exhibited a range of degradation times under accelerated conditions, from complete mass loss in 90 min to minimal mass loss at 45 days. Patterned features with 55 μm resolution were achieved across all resins, but their fidelity was dependent on PBAE-diacrylate molecular weight, reactivity, and printing parameters. In summary, simple chemical modifications in the PBAE-diacrylate resins coupled with projection microstereolithography enables high resolution 3D printed parts with similar architectures and initial properties, but widely different degradation rates and behaviors.
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Affiliation(s)
- Archish Muralidharan
- Materials Science and Engineering Program, University of Colorado, Boulder, USA, Boulder, CO 80309, USA
| | - Robert R. McLeod
- Department of Electrical, Computer and Energy Engineering, University of Colorado, Boulder, Boulder, CO 80309, USA; Materials Science and Engineering Program, University of Colorado, Boulder, USA, Boulder, CO 80309, USA
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10
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Liu ZC, Wang M, Huang S, Yang H. Biodegradable and Crosslinkable Poly(propylene fumarate) Liquid Crystal Polymers. Polym Chem 2022. [DOI: 10.1039/d1py01475g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In recent years, liquid crystal polymers (LCPs) have attracted extensive attention due to their widespread applications in artificial muscles, engineering plastics and high-modulus fibers, etc. However, the design and fabrication...
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11
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Khalfa AL, Becker ML, Dove AP. Stereochemistry-Controlled Mechanical Properties and Degradation in 3D-Printable Photosets. J Am Chem Soc 2021; 143:17510-17516. [PMID: 34652902 DOI: 10.1021/jacs.1c06960] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Stereochemistry provides an appealing handle by which to control the properties of small molecules and polymers. While it is established that stereochemistry in linear polymers affects their bulk mechanical properties, the application of this concept to photocurable networks could allow for resins that can accommodate the increasing demand for mechanically diverse materials without the need to significantly change their formulation. Herein, we exploit cis and trans stereochemistry in pre-resin oligomers to create photoset materials with mechanical properties and degradation rates that are controlled by their stereochemistry and molecular weight. Both the synthesis of stereopure (cis or trans) acrylate-terminated pre-polymers and the subsequent UV-triggered cross-linking occurred with a retention of stereochemistry, close to 100%. The stereochemistry of a 4 kDa oligomer within the resin enabled the tuning of the formulation to either a fast eroding, soft cis elastomer or a stiff trans plastic that is more resistant to degradation. These results demonstrate that stereochemistry is a powerful tool to modify the stiffness, toughness, and degradability of high-resolution, three-dimensional printed scaffolds from the same formulated ratio of components.
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Affiliation(s)
- Anissa L Khalfa
- School of Chemistry, University of Birmingham, Edgbaston B15 2TT, U.K
| | - Matthew L Becker
- Department of Chemistry, Mechanical Engineering and Materials Science, Biomedical Engineering and Orthopedic Surgery, Duke University, Durham, North Carolina, 20899, United States
| | - Andrew P Dove
- School of Chemistry, University of Birmingham, Edgbaston B15 2TT, U.K
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12
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Rezaei A, Giambini H, Miller Ii AL, Xu H, Xu H, Li Y, Yaszemski MJ, Lu L. CT-based structural analyses of vertebral fractures with polymeric augmentation: A study of cadaveric three-level spine segments. Comput Biol Med 2021; 133:104395. [PMID: 33872967 DOI: 10.1016/j.compbiomed.2021.104395] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2021] [Revised: 04/09/2021] [Accepted: 04/09/2021] [Indexed: 12/27/2022]
Abstract
Pathologic vertebral fractures due to metastasis can occur under normal physiologic activities, leading to pain and neurologic deficit. Prophylactic vertebroplasty is a technique used to augment vertebral strength and reduce the risk of fracture. Currently, no technique is available to objectively assess vertebral fracture risk in metastatically-involved vertebral bodies. The aim of the current study was to develop an image-based computational technique to estimate fracture force outcomes during bending. To this end, mechanical testing was performed on intact, simulated defect, PMMA-augmented, and PPF-augmented 3-level spine segments from both sexes under a compression/flexion-type loading condition. The augmentation performance of poly(methyl methacrylate) (PMMA) and poly(propylene fumarate) (PPF) were also evaluated and compared. Cylindrical defects were created in 3-level spine segments with attached posterior elements and ligaments. Using CT images of each segment, a rigidity analysis technique was developed and used for predicting fracture forces during bending. On average, PPF strengthened the segments by about 630 N, resulting in fracture forces similar to those observed in the intact and PMMA-augmented groups. Female spines fractured at about 1150 N smaller force than did male spines. Rigidity analysis, along with age, explained 66% variability in experimental outcomes. This number increased to 74% when vertebral size and age were added to the rigidity analysis as explanatory variables. Both PPF and PMMA similarly increased fracture strength to the level of intact specimens. The results suggest that PPF can be a suitable candidate for augmentation purposes and rigidity analysis can be a promising predicting tool for vertebral fracture forces.
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Affiliation(s)
- Asghar Rezaei
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, USA; Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA
| | - Hugo Giambini
- Department of Biomedical Engineering and Chemical Engineering, University of Texas at San Antonio, San Antonio, TX, USA
| | - Alan L Miller Ii
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA
| | - Hao Xu
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, USA; Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA
| | - Haocheng Xu
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, USA; Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA
| | - Yong Li
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, USA; Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA
| | - Michael J Yaszemski
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, USA; Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA
| | - Lichun Lu
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, USA; Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA.
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13
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Merckle D, Constant E, Cartwright Z, Weems AC. Ring Opening Copolymerization of Four-Dimensional Printed Shape Memory Polyester Photopolymers Using Digital Light Processing. Macromolecules 2021. [DOI: 10.1021/acs.macromol.0c02401] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- David Merckle
- Translational Biosciences Program, Ohio University, Athens, Ohio 45701, United States
| | - Eric Constant
- Biomedical Engineering Program, Russ College of Engineering, Ohio University, Athens, Ohio 45701, United States
| | - Zachary Cartwright
- Department of Mechanical Engineering, Russ College of Engineering, Ohio University, Athens, Ohio 45701, United States
| | - Andrew C Weems
- Translational Biosciences Program, Ohio University, Athens, Ohio 45701, United States
- Biomedical Engineering Program, Russ College of Engineering, Ohio University, Athens, Ohio 45701, United States
- Department of Mechanical Engineering, Russ College of Engineering, Ohio University, Athens, Ohio 45701, United States
- Ohio Musculoskeletal and Neurological Institute, Health College of Medicine, Ohio University, Athens, Ohio 45701, United States
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14
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Materials and Manufacturing Techniques for Polymeric and Ceramic Scaffolds Used in Implant Dentistry. JOURNAL OF COMPOSITES SCIENCE 2021. [DOI: 10.3390/jcs5030078] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Preventive and regenerative techniques have been suggested to minimize the aesthetic and functional effects caused by intraoral bone defects, enabling the installation of dental implants. Among them, porous three-dimensional structures (scaffolds) composed mainly of bioabsorbable ceramics, such as hydroxyapatite (HAp) and β-tricalcium phosphate (β-TCP) stand out for reducing the use of autogenous, homogeneous, and xenogenous bone grafts and their unwanted effects. In order to stimulate bone formation, biodegradable polymers such as cellulose, collagen, glycosaminoglycans, polylactic acid (PLA), polyvinyl alcohol (PVA), poly-ε-caprolactone (PCL), polyglycolic acid (PGA), polyhydroxylbutyrate (PHB), polypropylenofumarate (PPF), polylactic-co-glycolic acid (PLGA), and poly L-co-D, L lactic acid (PLDLA) have also been studied. More recently, hybrid scaffolds can combine the tunable macro/microporosity and osteoinductive properties of ceramic materials with the chemical/physical properties of biodegradable polymers. Various methods are suggested for the manufacture of scaffolds with adequate porosity, such as conventional and additive manufacturing techniques and, more recently, 3D and 4D printing. The purpose of this manuscript is to review features concerning biomaterials, scaffolds macro and microstructure, fabrication techniques, as well as the potential interaction of the scaffolds with the human body.
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Kovylin RS, Aleynik DY, Fedushkin IL. Modern Porous Polymer Implants: Synthesis, Properties, and Application. POLYMER SCIENCE SERIES C 2021. [DOI: 10.1134/s1811238221010033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Abstract
The needs of modern surgery triggered the intensive development of transplantology, medical materials science, and tissue engineering. These directions require the use of innovative materials, among which porous polymers occupy one of the leading positions. The use of natural and synthetic polymers makes it possible to adjust the structure and combination of properties of a material to its particular application. This review generalizes and systematizes the results of recent studies describing requirements imposed on the structure and properties of synthetic (or artificial) porous polymer materials and implants on their basis and the advantages and limitations of synthesis methods. The most extensively employed, promising initial materials are considered, and the possible areas of application of polymer implants based on these materials are highlighted.
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Kimicata M, Allbritton-King JD, Navarro J, Santoro M, Inoue T, Hibino N, Fisher JP. Assessment of decellularized pericardial extracellular matrix and poly(propylene fumarate) biohybrid for small-diameter vascular graft applications. Acta Biomater 2020; 110:68-81. [PMID: 32305447 PMCID: PMC7294167 DOI: 10.1016/j.actbio.2020.04.013] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2019] [Revised: 04/02/2020] [Accepted: 04/06/2020] [Indexed: 01/05/2023]
Abstract
Autologous grafts are the current gold standard of care for coronary artery bypass graft surgeries, but are limited by availability and plagued by high failure rates. Similarly, tissue engineering approaches to small diameter vascular grafts using naturally derived and synthetic materials fall short, largely due to inappropriate mechanical properties. Alternatively, decellularized extracellular matrix from tissue is biocompatible and has comparable strength to vessels, while poly(propylene fumarate) (PPF) has shown promising results for vascular grafts. This study investigates the integration of decellularized pericardial extracellular matrix (dECM) and PPF to create a biohybrid scaffold (dECM+PPF) suitable for use as a small diameter vascular graft. Our method to decellularize the ECM was efficient at removing DNA content and donor variability, while preserving protein composition. PPF was characterized and added to dECM, where it acted to preserve dECM against degradative effects of collagenase without disturbing the material's overall mechanics. A transport study showed that diffusion occurs across dECM+PPF without any effect from collagenase. The modulus of dECM+PPF matched that of human coronary arteries and saphenous veins. dECM+PPF demonstrated ample circumferential stress, burst pressure, and suture retention strength to survive in vivo. An in vivo study showed re-endothelialization and tissue growth. Overall, the dECM+PPF biohybrid presents a robust solution to overcome the limitations of the current methods of treatment for small diameter vascular grafts. STATEMENT OF SIGNIFICANCE: In creating a dECM+PPF biohybrid graft, we have observed phenomena that will have a lasting impact within the scientific community. First, we found that we can reduce donor variability through decellularization, a unique use of the decellularization process. Additionally, we coupled a natural material with a synthetic polymer to capitalize on the benefits of each: the cues provided to cells and the ability to easily tune material properties, respectively. This principle can be applied to other materials in a variety of applications. Finally, we created an off-the-shelf alternative to autologous grafts with a newly developed material that has yet to be utilized in any scaffolds. Furthermore, bovine pericardium has not been investigated as a small diameter vascular graft.
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Affiliation(s)
- Megan Kimicata
- Department of Materials Science and Engineering, University of Maryland, 3121 A. James Clark Hall, College Park, MD 20742, United States; Center for Engineering Complex Tissues, University of Maryland, 3121 A. James Clark Hall, College Park, MD 20742, United States
| | - Jules D Allbritton-King
- Center for Engineering Complex Tissues, University of Maryland, 3121 A. James Clark Hall, College Park, MD 20742, United States; Fischell Department of Bioengineering, University of Maryland, 3121 A. James Clark Hall, College Park, MD 20742, United States
| | - Javier Navarro
- Center for Engineering Complex Tissues, University of Maryland, 3121 A. James Clark Hall, College Park, MD 20742, United States; Fischell Department of Bioengineering, University of Maryland, 3121 A. James Clark Hall, College Park, MD 20742, United States
| | - Marco Santoro
- Center for Engineering Complex Tissues, University of Maryland, 3121 A. James Clark Hall, College Park, MD 20742, United States; Fischell Department of Bioengineering, University of Maryland, 3121 A. James Clark Hall, College Park, MD 20742, United States
| | - Takahiro Inoue
- Department of Surgery, Division of Cardiac Surgery, Johns Hopkins University, 1800 Orleans St, Baltimore, MD, 21287; Department of Surgery, Section of Cardiac Surgery, The University of Chicago, 5841 S. Maryland Ave, Chicago, IL 60637, United States
| | - Narutoshi Hibino
- Department of Surgery, Division of Cardiac Surgery, Johns Hopkins University, 1800 Orleans St, Baltimore, MD, 21287; Department of Surgery, Section of Cardiac Surgery, The University of Chicago, 5841 S. Maryland Ave, Chicago, IL 60637, United States
| | - John P Fisher
- Center for Engineering Complex Tissues, University of Maryland, 3121 A. James Clark Hall, College Park, MD 20742, United States; Fischell Department of Bioengineering, University of Maryland, 3121 A. James Clark Hall, College Park, MD 20742, United States.
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17
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Worch JC, Weems AC, Yu J, Arno MC, Wilks TR, Huckstepp RTR, O'Reilly RK, Becker ML, Dove AP. Elastomeric polyamide biomaterials with stereochemically tuneable mechanical properties and shape memory. Nat Commun 2020; 11:3250. [PMID: 32591525 PMCID: PMC7320000 DOI: 10.1038/s41467-020-16945-8] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Accepted: 05/27/2020] [Indexed: 12/14/2022] Open
Abstract
Biocompatible polymers are widely used in tissue engineering and biomedical device applications. However, few biomaterials are suitable for use as long-term implants and these examples usually possess limited property scope, can be difficult to process, and are non-responsive to external stimuli. Here, we report a class of easily processable polyamides with stereocontrolled mechanical properties and high-fidelity shape memory behaviour. We synthesise these materials using the efficient nucleophilic thiol-yne reaction between a dipropiolamide and dithiol to yield an α,β - unsaturated carbonyl moiety along the polymer backbone. By rationally exploiting reaction conditions, the alkene stereochemistry is modulated between 35-82% cis content and the stereochemistry dictates the bulk material properties such as tensile strength, modulus, and glass transition. Further access to materials possessing a broader range of thermal and mechanical properties is accomplished by polymerising a variety of commercially available dithiols with the dipropiolamide monomer.
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Affiliation(s)
- Joshua C Worch
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
| | - Andrew C Weems
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
| | - Jiayi Yu
- Department of Polymer Science, The University of Akron, Akron, OH, 44325, USA
| | - Maria C Arno
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
| | - Thomas R Wilks
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
| | | | - Rachel K O'Reilly
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
| | - Matthew L Becker
- Department of Chemistry, Department of Mechanical Engineering & Materials Science, Department of Orthopaedic Surgery, Duke University, 308 Research Drive, Durham, NC, 27708, USA.
| | - Andrew P Dove
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK.
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18
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Le Fer G, Becker ML. 4D Printing of Resorbable Complex Shape-Memory Poly(propylene fumarate) Star Scaffolds. ACS APPLIED MATERIALS & INTERFACES 2020; 12:22444-22452. [PMID: 32337967 DOI: 10.1021/acsami.0c01444] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
3D/4D printing is enabling transformative advances in device manufacturing and medicine but remains limited by the lack of printable resorbable materials with advanced properties and functions. Herein, we report the rapid and precise 4D printing of shape-memory scaffolds based on poly(propylene fumarate) (PPF) star polymers. Scaffolds with tunable and distinguishable properties can be produced with identical polymer formulation and stoichiometry. The resulting scaffold glass transition temperatures and Young's moduli increase with the postcuring time. Significantly, both the extent and rate of shape recovery following compression can be tuned by varying the strut design, the postcuring step duration, and/or the temperature applied for the recovery step. Finally, accelerated degradation studies confirmed the resorbability of the PPF star polymer gyroid scaffolds.
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Affiliation(s)
- Gaëlle Le Fer
- Department of Polymer Science, The University of Akron, Akron, Ohio 44325, United States
| | - Matthew L Becker
- Department of Polymer Science, The University of Akron, Akron, Ohio 44325, United States
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
- Department of Mechanical Engineering and Material Science, Duke University, Durham, North Carolina 27708, United States
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19
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Weems AC, Pérez-Madrigal MM, Arno MC, Dove AP. 3D Printing for the Clinic: Examining Contemporary Polymeric Biomaterials and Their Clinical Utility. Biomacromolecules 2020; 21:1037-1059. [PMID: 32058702 DOI: 10.1021/acs.biomac.9b01539] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The advent of additive manufacturing offered the potential to revolutionize clinical medicine, particularly with patient-specific implants across a range of tissue types. However, to date, there are very few examples of polymers being used for additive processes in clinical settings. The state of the art with regards to 3D printable polymeric materials being exploited to produce novel clinically relevant implants is discussed here. We focus on the recent advances in the development of implantable, polymeric medical devices and tissue scaffolds without diverging extensively into bioprinting. By introducing the major 3D printing techniques along with current advancements in biomaterials, we hope to provide insight into how these fields may continue to advance while simultaneously reviewing the ongoing work in the field.
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Affiliation(s)
- Andrew C Weems
- School of Chemistry, University of Birmingham, Birmingham B15 2TT, U.K
| | | | - Maria C Arno
- School of Chemistry, University of Birmingham, Birmingham B15 2TT, U.K
| | - Andrew P Dove
- School of Chemistry, University of Birmingham, Birmingham B15 2TT, U.K
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20
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Fan D, Staufer U, Accardo A. Engineered 3D Polymer and Hydrogel Microenvironments for Cell Culture Applications. Bioengineering (Basel) 2019; 6:E113. [PMID: 31847117 PMCID: PMC6955903 DOI: 10.3390/bioengineering6040113] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 11/13/2019] [Accepted: 12/06/2019] [Indexed: 12/28/2022] Open
Abstract
The realization of biomimetic microenvironments for cell biology applications such as organ-on-chip, in vitro drug screening, and tissue engineering is one of the most fascinating research areas in the field of bioengineering. The continuous evolution of additive manufacturing techniques provides the tools to engineer these architectures at different scales. Moreover, it is now possible to tailor their biomechanical and topological properties while taking inspiration from the characteristics of the extracellular matrix, the three-dimensional scaffold in which cells proliferate, migrate, and differentiate. In such context, there is therefore a continuous quest for synthetic and nature-derived composite materials that must hold biocompatible, biodegradable, bioactive features and also be compatible with the envisioned fabrication strategy. The structure of the current review is intended to provide to both micro-engineers and cell biologists a comparative overview of the characteristics, advantages, and drawbacks of the major 3D printing techniques, the most promising biomaterials candidates, and the trade-offs that must be considered in order to replicate the properties of natural microenvironments.
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Affiliation(s)
| | | | - Angelo Accardo
- Department of Precision and Microsystems Engineering, Delft University of Technology, Mekelweg 2, 2628 CD Delft, The Netherlands; (D.F.); (U.S.)
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21
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Kleinfehn AP, Lammel Lindemann JA, Razvi A, Philip P, Richardson K, Nettleton K, Becker ML, Dean D. Modulating Bioglass Concentration in 3D Printed Poly(propylene fumarate) Scaffolds for Post-Printing Functionalization with Bioactive Functional Groups. Biomacromolecules 2019; 20:4345-4352. [PMID: 31661252 DOI: 10.1021/acs.biomac.9b00941] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Poly(propylene fumarate) (PPF) has shown potential for the treatment of bone defects as it can be 3D printed into scaffolds to suit patient-specific needs with strength comparable to that of bone. However, the lack of specific cell attachment and osteogenic signaling moieties have limited their utility as it is necessary to provide these signals to aid in bone tissue formation. To address this issue and provide a platform for functionalization, Bioglass (∼1-2 μm) microparticles have been incorporated into PPF to create a 3D printable resin with concentrations ranging from 0 to 10 wt %. The zero-shear viscosity of PPF-Bioglass resins increased proportionally from 0 to 2.5 wt % Bioglass, with values of 0.22 and 0.34 Pa·s, respectively. At higher Bioglass concentrations, 5 and 10 wt %, the resin viscosity increased to 0.44 and 1.31 Pa·s, exhibiting a 2- and 6-fold increase from the 0 wt % Bioglass resin. Despite this increase in viscosity, all resins remained printable with no print failures. In addition, the surface available Bioglass can tether catechol containing molecules for postprinting functionalization. Analysis of PPF-Bioglass functionalization using a catechol dye analyte shows functionalization increases with Bioglass concentration, up to 157 nmol/cm2, and demonstrates it is possible to modulate functionalization. This presents a versatile and highly translationally relevant strategy to functionalize 3D printed scaffolds post printing with a diverse array of functional species.
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Affiliation(s)
- Alex P Kleinfehn
- Department of Polymer Science , The University of Akron , Akron , Ohio 44325 , United States
| | - Jan A Lammel Lindemann
- Department of Plastic and Reconstructive Surgery , The Ohio State University , Columbus , Ohio 43210 , United States.,Tecnologico de Monterrey, Escuela de Ingenieria y Ciencias , Monterrey , N. L. 64849 , Mexico.,Laboratorio Nacional de Manufactura Aditiva y Digital (MADiT) , Apodaca , N.L. 66629 , Mexico
| | - Ali Razvi
- Department of Plastic and Reconstructive Surgery , The Ohio State University , Columbus , Ohio 43210 , United States
| | - Phinu Philip
- Department of Plastic and Reconstructive Surgery , The Ohio State University , Columbus , Ohio 43210 , United States
| | - Katelyn Richardson
- Department of Plastic and Reconstructive Surgery , The Ohio State University , Columbus , Ohio 43210 , United States
| | - Karissa Nettleton
- Department of Polymer Science , The University of Akron , Akron , Ohio 44325 , United States
| | - Matthew L Becker
- Department of Polymer Science , The University of Akron , Akron , Ohio 44325 , United States
| | - David Dean
- Department of Plastic and Reconstructive Surgery , The Ohio State University , Columbus , Ohio 43210 , United States
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22
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Guerra AJ, Lammel-Lindemann J, Katko A, Kleinfehn A, Rodriguez CA, Catalani LH, Becker ML, Ciurana J, Dean D. Optimization of photocrosslinkable resin components and 3D printing process parameters. Acta Biomater 2019; 97:154-161. [PMID: 31352105 DOI: 10.1016/j.actbio.2019.07.045] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 07/19/2019] [Accepted: 07/24/2019] [Indexed: 10/26/2022]
Abstract
The role of 3D printing in the biomedical field is growing. In this context, photocrosslink-based 3D printing procedures for resorbable polymers stand out. Despite much work, more studies are needed on photocuring stereochemistry, new resin additives, new polymers and resin components. As part of these studies it is vital to present the logic used to optimize the amount of each resin constituent and how that effects printing process parameters. The present manuscript aims to analyze the effects of poly(propylene fumarate) (PPF) resin components and their effect on 3D printing process parameters. Diethyl fumarate (DEF), bisacylphosphine oxide (BAPO), Irgacure 784, 2-hydroxy-4-methoxybenzophenone (HMB) and, for the first time, in biomedical 3D printing, ethyl acetate (EA), were the resin components under investigation in this study. Regarding printing process parameters, Exposure Time, Voxel Depth, and Overcuring Depth were the parameters studied. Taguchi Design of Experiments was used to search for the effect of varying these resin constituent concentrations and 3D printing parameters on the curing behavior of 3D printable PPF resins. Our results indicate that resins with higher polymer cross-link density, especially those with a higher content of PPF, are able to be printed at higher voxel depth and with greater success (i.e., high yield). High voxel depth, as long as it does not sacrifice required resolution, is desirable as it speeds printing. Nevertheless, the overall process is governed by the correct setup of the voxel depth in relation to overcuring depth. In regards to resin biocompatibility, it was observed that EA is more effective than DEF, the material we had previously relied on. Our preliminary in vitro cytotoxicity tests indicate that the use of EA does not reduce scaffold biocompatibility as measured by standard cytotoxicity testing (i.e., ISO 10993-5). We demonstrate a workpath for resin constituent concentration optimization through thin film tests and photocrosslinkable process optimization. STATEMENT OF SIGNIFICANCE: We report here the results of a study of photo-crosslinkable polymer resin component optimization for the 3D printing of resorbable poly(propylene fumarate) (PPF) scaffolds. Resin additives are initially optimized for PPF thin film printing. Once those parameters have been optimized the 3D printing process parameters for PPF objects with complex, porous shapes can be optimized. The design of experiments to optimize both polymer thin films and complex porous resorbable polymer scaffolds is important as a guess and check, or in some cases a systematic method, are very likely to be too time consuming to accomplish. Previously unstudied resin components and process parameters are reported.
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23
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Nettleton K, Luong D, Kleinfehn AP, Savariau L, Premanandan C, Becker ML. Molecular Mass-Dependent Resorption and Bone Regeneration of 3D Printed PPF Scaffolds in a Critical-Sized Rat Cranial Defect Model. Adv Healthc Mater 2019; 8:e1900646. [PMID: 31328402 DOI: 10.1002/adhm.201900646] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 07/10/2019] [Indexed: 11/11/2022]
Abstract
The emergence of additive manufacturing has afforded the ability to fabricate intricate, high resolution, and patient-specific polymeric implants. However, the availability of biocompatible resins with tunable resorption profiles remains a significant hurdle to clinical translation. In this study, 3D scaffolds are fabricated via stereolithographic cDLP printing of poly(propylene fumarate) (PPF) and assessed for bone regeneration in a rat critical-sized cranial defect model. Scaffolds are printed with two different molecular mass resin formulations (1000 and 1900 Da) with narrow molecular mass distributions and implanted to determine if these polymer characteristics influence scaffold resorption and bone regeneration in vivo. X-ray microcomputed tomography (µ-CT) data reveal that at 4 weeks the lower molecular mass polymer degrades faster than the higher molecular mass PPF and thus more new bone is able to infiltrate the defect. However, at 12 weeks, the regenerated bone volume of the 1900 Da formulation is nearly equivalent to the lower molecular mass 1000 Da formulation. Significantly, lamellar bone bridges the defect at 12 weeks with both PPF formulations and there is no indication of an acute inflammatory response.
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Affiliation(s)
- Karissa Nettleton
- Department of Polymer ScienceThe University of Akron Akron OH 44325 USA
| | - Derek Luong
- Department of Polymer ScienceThe University of Akron Akron OH 44325 USA
| | - Alex P. Kleinfehn
- Department of Polymer ScienceThe University of Akron Akron OH 44325 USA
| | - Laura Savariau
- Department of Polymer ScienceThe University of Akron Akron OH 44325 USA
| | - Christopher Premanandan
- Department of Veterinary BiosciencesCollege of Veterinary MedicineThe Ohio State University Columbus OH 43210 USA
| | - Matthew L. Becker
- Department of Polymer ScienceThe University of Akron Akron OH 44325 USA
- Departments of ChemistryMechanical Engineering and Material ScienceOrthopaedic SurgeryDuke University Durham NC 27708 USA
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24
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Cai Z, Wan Y, Becker ML, Long YZ, Dean D. Poly(propylene fumarate)-based materials: Synthesis, functionalization, properties, device fabrication and biomedical applications. Biomaterials 2019; 208:45-71. [PMID: 30991217 DOI: 10.1016/j.biomaterials.2019.03.038] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 03/04/2019] [Accepted: 03/23/2019] [Indexed: 12/22/2022]
Abstract
Poly(propylene fumarate) (PPF) is a biodegradable polymer that has been investigated extensively over the last three decades. It has led many scientists to synthesize and fabricate a variety of PPF-based materials for biomedical applications due to its controllable mechanical properties, tunable degradation and biocompatibility. This review provides a comprehensive overview of the progress made in improving PPF synthesis, resin formulation, crosslinking, device fabrication and post polymerization modification. Further, we highlight the influence of these parameters on biodegradation, biocompatibility, and their use in a number of regenerative medicine applications, especially bone tissue engineering. In particular, the use of 3D printing techniques for the fabrication of PPF-based scaffolds is extensively reviewed. The recent invention of a ring-opening polymerization method affords precise control of PPF molecular mass, molecular mass distribution (ƉM) and viscosity. Low ƉM facilitates time-certain resorption of 3D printed structures. Novel post-polymerization and post-printing functionalization methods have accelerated the expansion of biomedical applications that utilize PPF-based materials. Finally, we shed light on evolving uses of PPF-based materials for orthopedics/bone tissue engineering and other biomedical applications, including its use as a hydrogel for bioprinting.
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Affiliation(s)
- Zhongyu Cai
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore; Department of Chemistry, University of Pittsburgh, Chevron Science Center, 219 Parkman Avenue, Pittsburgh, PA 15260, United States.
| | - Yong Wan
- Collaborative Innovation Center for Nanomaterials, College of Physics, Qingdao University, No. 308 Ningxia Road, Qingdao, 266071, Shandong Province, China
| | - Matthew L Becker
- Department of Polymer Science, The University of Akron, Akron, OH 44325, United States
| | - Yun-Ze Long
- Collaborative Innovation Center for Nanomaterials, College of Physics, Qingdao University, No. 308 Ningxia Road, Qingdao, 266071, Shandong Province, China; Industrial Research Institute of Nonwovens & Technical Textiles, Qingdao University, No. 308 Ningxia Road, Qingdao, 266071, Shandong Province, China.
| | - David Dean
- Department of Plastic & Reconstructive Surgery, The Ohio State University, Columbus, OH 43210, United States.
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25
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Farshid B, Lalwani G, Mohammadi MS, Sankaran JS, Patel S, Judex S, Simonsen J, Sitharaman B. Two-dimensional graphene oxide-reinforced porous biodegradable polymeric nanocomposites for bone tissue engineering. J Biomed Mater Res A 2019; 107:1143-1153. [PMID: 30635968 DOI: 10.1002/jbm.a.36606] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 06/18/2018] [Accepted: 07/05/2018] [Indexed: 12/21/2022]
Abstract
This study investigates the mechanical properties and in vitro cytotoxicity of two-dimensional (2D) graphene oxide nanoribbons and nanoplatelets (GONRs and GONPs) reinforced porous polymeric nanocomposites. Highly porous poly(propylene fumarate) (PPF) nanocomposites were prepared by dispersing 0.2 wt % single- and multiwalled SONRs (SWGONRs and MWGONRs) and GONPs. The mechanical properties of scaffolds were characterized using compression testing and in vitro cytocompatibility was assessed using QuantiFlour assay for cellularity and PrestoBlue assay for cell viability. Immunofluorescence was used to assess collagen-I expression and deposition in the extracellular matrix. Porous PPF scaffolds were used as a baseline control and porous single and multiwalled carbon nanotubes (SWCNTs and MWCNTs) reinforced nanocomposites were used as positive controls. Results show that incorporation of 2D graphene nanomaterials leads to an increase in the mechanical properties of porous PPF nanocomposites with following the trend: MWGONRs > GONPs > SWGONRs > MWCNTs > SWCNTs > PPF control. MWGONRs showed the best enhancement of compressive mechanical properties with increases of up to 26% in compressive modulus (i.e., Young's modulus), ~60% in yield strength, and ~24% in the ultimate compressive strength. Addition of 2D nanomaterials did not alter the cytocompatibility of porous PPF nanocomposites. Furthermore, PPF nanocomposites reinforced with SWGONRs, MWGONRs, and GONPs show an improvement in the adsorption of collagen-I compared to PPF baseline control. The results of this study show that 2D graphene nanomaterial reinforced porous PPF nanocomposites possess superior mechanical properties, cytocompatibility, and increased protein adsorption. The favorable cytocompatibility results opens avenues for in vivo safety and efficacy studies for bone tissue engineering applications. © 2019 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 107A: 1143-1153, 2019.
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Affiliation(s)
- Behzad Farshid
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, New York, 11794
- Department of Materials Science and Engineering, Stony Brook University, Stony Brook, New York, 11794
| | - Gaurav Lalwani
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, New York, 11794
| | - Meisam Shir Mohammadi
- Department of Wood Science and Engineering, Oregon State University, Corvallis, Oregon, 97331
- Department of Mechanical, Industrial and Manufacturing Engineering, Oregon State University, Corvallis, Oregon, 97331
| | | | - Sunny Patel
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, New York, 11794
| | - Stefan Judex
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, New York, 11794
| | - John Simonsen
- Department of Wood Science and Engineering, Oregon State University, Corvallis, Oregon, 97331
| | - Balaji Sitharaman
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, New York, 11794
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26
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Abstract
To estimate the reaction free energies of the hydrogen evolution reaction (HER) on under-coordinated metallic sites, density function theory (DFT) calculations are usually employed to calculate the hydrogen adsorption energy with an “only-one-hydrogen-adsorption” model, assuming that adsorption with one hydrogen is the most thermodynamically favorable situation during catalysis. In this brief report, we show that on many single atom sites, adsorption of more than one hydrogen is sometimes even more thermodynamically favorable, with the presence of two or three hydrogens resulting in lower adsorption energies. These interesting non-monotonic trends indicate that modeling HER and other hydrogen-related reactions on under-coordinated sites should also consider the numbers of hydrogen being adsorbed at the same site, otherwise the results could deviate from real experimental situations.
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27
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Le Fer G, Luo Y, Becker ML. Poly(propylene fumarate) stars, using architecture to reduce the viscosity of 3D printable resins. Polym Chem 2019. [DOI: 10.1039/c9py00738e] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Additive manufacturing is changing tissue engineering by offering pathways to otherwise unattainable, highly complex scaffold morphologies.
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Affiliation(s)
- Gaëlle Le Fer
- Department of Polymer Science
- University of Akron
- Akron
- USA
| | - Yuanyuan Luo
- Department of Polymer Science
- University of Akron
- Akron
- USA
| | - Matthew L. Becker
- Department of Polymer Science
- University of Akron
- Akron
- USA
- Department of Chemistry
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28
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Dilla RA, M Motta CM, Snyder SR, Wilson JA, Wesdemiotis C, Becker ML. Synthesis and 3D Printing of PEG-Poly(propylene fumarate) Diblock and Triblock Copolymer Hydrogels. ACS Macro Lett 2018; 7:1254-1260. [PMID: 31649829 PMCID: PMC6812489 DOI: 10.1021/acsmacrolett.8b00720] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
PEG-based hydrogels are used widely in exploratory tissue engineering applications but in general lack chemical and structural diversity. Additive manufacturing offers pathways to otherwise unattainable scaffold morphologies but has been applied sparingly to cross-linked hydrogels. Herein, mono methyl ether poly(ethylene glycol) (PEG) and PEG-diol were used to initiate the ring-opening copolymerization (ROCOP) of maleic anhydride and propylene oxide to yield well defined diblock and triblock copolymers of PEG-poly(propylene maleate) (PPM) and ultimately poly(propylene fumarate) (PPF) with different molecular mass PEG macroinitiators and block length ratios. Using continuous digital light processing (cDLP) hydrogels were photochemically printed from an aqueous solution which resulted in a 10-fold increase in elongation at break compared to traditional diethyl fumarate (DEF) based printing. Furthermore, PPF-PEG-PPF triblock hydrogels were also found to be biocompatible in vitro across a number of engineered MC3T3, NIH3T3, and primary Schwann cells.
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Affiliation(s)
- Rodger A. Dilla
- Department of Polymer Science, The University of Akron,
Akron, OH 44325, USA
| | - Cecilia M. M Motta
- Department of Polymer Science, The University of Akron,
Akron, OH 44325, USA
| | | | - James A. Wilson
- Department of Polymer Science, The University of Akron,
Akron, OH 44325, USA
| | - Chrys Wesdemiotis
- Department of Chemistry, The University of Akron, Akron OH
44325, USA
| | - Matthew L. Becker
- Department of Polymer Science, The University of Akron,
Akron, OH 44325, USA
- Department of Biomedical Engineering, The University of
Akron, Akron, OH 44325, USA
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29
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Chen Y, Wilson JA, Petersen SR, Luong D, Sallam S, Mao J, Wesdemiotis C, Becker ML. Ring-Opening Copolymerization of Maleic Anhydride with Functional Epoxides: Poly(propylene fumarate) Analogues Capable of Post-Polymerization Modification. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201807419] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Yusheng Chen
- Department of Polymer Science; The University of Akron; Akron OH 44325 USA
| | - James A. Wilson
- Department of Polymer Science; The University of Akron; Akron OH 44325 USA
| | | | - Derek Luong
- Department of Polymer Science; The University of Akron; Akron OH 44325 USA
| | - Sahar Sallam
- Department of Chemistry; The University of Akron; Akron OH 44325 USA
| | - Jialin Mao
- Department of Chemistry; The University of Akron; Akron OH 44325 USA
| | - Chrys Wesdemiotis
- Department of Polymer Science; The University of Akron; Akron OH 44325 USA
- Department of Chemistry; The University of Akron; Akron OH 44325 USA
| | - Matthew L. Becker
- Department of Polymer Science; The University of Akron; Akron OH 44325 USA
- Department of Biomedical Engineering; The University of Akron; Akron OH 44325 USA
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30
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Chen Y, Wilson JA, Petersen SR, Luong D, Sallam S, Mao J, Wesdemiotis C, Becker ML. Ring-Opening Copolymerization of Maleic Anhydride with Functional Epoxides: Poly(propylene fumarate) Analogues Capable of Post-Polymerization Modification. Angew Chem Int Ed Engl 2018; 57:12759-12764. [DOI: 10.1002/anie.201807419] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Revised: 08/02/2018] [Indexed: 12/15/2022]
Affiliation(s)
- Yusheng Chen
- Department of Polymer Science; The University of Akron; Akron OH 44325 USA
| | - James A. Wilson
- Department of Polymer Science; The University of Akron; Akron OH 44325 USA
| | | | - Derek Luong
- Department of Polymer Science; The University of Akron; Akron OH 44325 USA
| | - Sahar Sallam
- Department of Chemistry; The University of Akron; Akron OH 44325 USA
| | - Jialin Mao
- Department of Chemistry; The University of Akron; Akron OH 44325 USA
| | - Chrys Wesdemiotis
- Department of Polymer Science; The University of Akron; Akron OH 44325 USA
- Department of Chemistry; The University of Akron; Akron OH 44325 USA
| | - Matthew L. Becker
- Department of Polymer Science; The University of Akron; Akron OH 44325 USA
- Department of Biomedical Engineering; The University of Akron; Akron OH 44325 USA
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31
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Petersen SR, Wilson JA, Becker ML. Versatile Ring-Opening Copolymerization and Postprinting Functionalization of Lactone and Poly(propylene fumarate) Block Copolymers: Resorbable Building Blocks for Additive Manufacturing. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b01372] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Shannon R. Petersen
- Department of Polymer Science, University of Akron, Akron, Ohio 44325, United States
| | - James A. Wilson
- Department of Polymer Science, University of Akron, Akron, Ohio 44325, United States
| | - Matthew L. Becker
- Department of Polymer Science, University of Akron, Akron, Ohio 44325, United States
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32
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Chen X, Zhao Y, Li X, Xiao Z, Yao Y, Chu Y, Farkas B, Romano I, Brandi F, Dai J. Functional Multichannel Poly(Propylene Fumarate)-Collagen Scaffold with Collagen-Binding Neurotrophic Factor 3 Promotes Neural Regeneration After Transected Spinal Cord Injury. Adv Healthc Mater 2018; 7:e1800315. [PMID: 29920990 DOI: 10.1002/adhm.201800315] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2018] [Revised: 05/11/2018] [Indexed: 01/12/2023]
Abstract
Many factors contribute to the poor axonal regrowth and ineffective functional recovery after spinal cord injury (SCI). Biomaterials have been used for SCI repair by promoting bridge formation and reconnecting the neural tissue at the lesion site. The mechanical properties of biomaterials are critical for successful design to ensure the stable support as soon as possible when compressed by the surrounding spine and musculature. Poly(propylene fumarate) (PPF) scaffolds with high mechanical strength have been shown to provide firm spatial maintenance and to promote repair of tissue defects. A multichannel PPF scaffold is combined with collagen biomaterial to build a novel biocompatible delivery system coated with neurotrophin-3 containing an engineered collagen-binding domain (CBD-NT3). The parallel-aligned multichannel structure of PPF scaffolds guide the direction of neural tissue regeneration across the lesion site and promote reestablishment of bridge connectivity. The combinatorial treatment consisting of PPF and collagen loaded with CBD-NT3 improves the inhibitory microenvironment, facilitates axonal and neuronal regeneration, survival of various types of functional neurons and remyelination and synapse formation of regenerated axons following SCI. This novel treatment strategy for SCI repair effectively promotes neural tissue regeneration after transected spinal injury by providing a regrowth-supportive microenvironment and eventually induces functional improvement.
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Affiliation(s)
- Xi Chen
- Institute of Combined Injury; State Key Laboratory of Trauma; Burns and Combined Injury; Chongqing Engineering Research Center for Nanomedicine; Chongqing Engineering Research Center for Biomaterials and Regenerative Medicine; College of Preventive Medicine; Army Medical University (Third Military Medical University); 30th Gaotanyan street Chongqing 400038 China
| | - Yannan Zhao
- State Key Laboratory of Molecular; Developmental Biology; Institute of Genetics and Developmental Biology; Chinese Academy of Sciences; Beijing 100101 China
| | - Xing Li
- State Key Laboratory of Molecular; Developmental Biology; Institute of Genetics and Developmental Biology; Chinese Academy of Sciences; Beijing 100101 China
| | - Zhifeng Xiao
- State Key Laboratory of Molecular; Developmental Biology; Institute of Genetics and Developmental Biology; Chinese Academy of Sciences; Beijing 100101 China
| | - Yuanjiang Yao
- Department of Neurobiology; Chongqing Key Laboratory of Neurobiology; Army Medical University (Third Military Medical University); 30th Gaotanyan street Chongqing 400038 China
| | - Yun Chu
- Division of Nanobiomedicine; Suzhou Institute of Nano-Tech and Nano-Bionics; Chinese Academy of Sciences; Suzhou 215123 China
| | - Balázs Farkas
- Istituto Italiano di Tecnologia; Via Morego 30 Genova 16163 Italy
| | - Ilaria Romano
- Istituto Italiano di Tecnologia; Via Morego 30 Genova 16163 Italy
| | - Fernando Brandi
- Istituto Italiano di Tecnologia; Via Morego 30 Genova 16163 Italy
- Istituto Nazionale di Ottica; Consiglio Nazionale delle Ricerche; Via Moruzzi 1 Pisa 56124 Italy
| | - Jianwu Dai
- Institute of Combined Injury; State Key Laboratory of Trauma; Burns and Combined Injury; Chongqing Engineering Research Center for Nanomedicine; Chongqing Engineering Research Center for Biomaterials and Regenerative Medicine; College of Preventive Medicine; Army Medical University (Third Military Medical University); 30th Gaotanyan street Chongqing 400038 China
- State Key Laboratory of Molecular; Developmental Biology; Institute of Genetics and Developmental Biology; Chinese Academy of Sciences; Beijing 100101 China
- Department of Neurobiology; Chongqing Key Laboratory of Neurobiology; Army Medical University (Third Military Medical University); 30th Gaotanyan street Chongqing 400038 China
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33
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In vitro characterization of 3D printed scaffolds aimed at bone tissue regeneration. Colloids Surf B Biointerfaces 2018; 165:207-218. [DOI: 10.1016/j.colsurfb.2018.02.038] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Revised: 02/02/2018] [Accepted: 02/15/2018] [Indexed: 01/02/2023]
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34
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Yu Y, Wei Z, Leng X, Li Y. Facile preparation of stereochemistry-controllable biobased poly(butylene maleate-co-butylene fumarate) unsaturated copolyesters: a chemoselective polymer platform for versatile functionalization via aza-Michael addition. Polym Chem 2018. [DOI: 10.1039/c8py01051j] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Biobased stereochemistry-controllable poly(butylene maleate-co-butylene fumarate) unsaturated copolyesters were facilely prepared as a chemoselective polymer platform for versatile functionalization via aza-Michael addition.
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Affiliation(s)
- Yang Yu
- State Key Laboratory of Fine Chemicals
- Department of Polymer Science and Engineering
- School of Chemical Engineering
- Dalian University of Technology
- Dalian 116024
| | - Zhiyong Wei
- State Key Laboratory of Fine Chemicals
- Department of Polymer Science and Engineering
- School of Chemical Engineering
- Dalian University of Technology
- Dalian 116024
| | - Xuefei Leng
- State Key Laboratory of Fine Chemicals
- Department of Polymer Science and Engineering
- School of Chemical Engineering
- Dalian University of Technology
- Dalian 116024
| | - Yang Li
- State Key Laboratory of Fine Chemicals
- Department of Polymer Science and Engineering
- School of Chemical Engineering
- Dalian University of Technology
- Dalian 116024
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35
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Wilson JA, Luong D, Kleinfehn AP, Sallam S, Wesdemiotis C, Becker ML. Magnesium Catalyzed Polymerization of End Functionalized Poly(propylene maleate) and Poly(propylene fumarate) for 3D Printing of Bioactive Scaffolds. J Am Chem Soc 2017; 140:277-284. [DOI: 10.1021/jacs.7b09978] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- James A. Wilson
- Department
of Polymer Science, University of Akron, Akron, Ohio 44325, United States
| | - Derek Luong
- Department
of Polymer Science, University of Akron, Akron, Ohio 44325, United States
| | - Alex P. Kleinfehn
- Department
of Polymer Science, University of Akron, Akron, Ohio 44325, United States
| | - Sahar Sallam
- Department
of Chemistry, University of Akron, Akron, Ohio 44325, United States
| | - Chrys Wesdemiotis
- Department
of Chemistry, University of Akron, Akron, Ohio 44325, United States
| | - Matthew L. Becker
- Department
of Polymer Science, University of Akron, Akron, Ohio 44325, United States
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36
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Ahn CB, Kim Y, Park SJ, Hwang Y, Lee JW. Development of arginine-glycine-aspartate-immobilized 3D printed poly(propylene fumarate) scaffolds for cartilage tissue engineering. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2017; 29:917-931. [PMID: 28929935 DOI: 10.1080/09205063.2017.1383020] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Poly(propylene fumarate) (PPF) has known to be a good candidate material for cartilage tissue regeneration because of its excellent mechanical properties during its degradation processes. Here, we describe the potential application of PPF-based materials as 3D printing bioinks to create macroporous cell scaffolds using micro-stereolithography. To improve cell-matrix interaction of seeded human chondrocytes within the PPF-based 3D scaffolds, we immobilized arginine-glycine-aspartate (RGD) peptide onto the PPF scaffolds. We also evaluated various cellular behaviors of the seeded chondrocytes using MTS assay, microscopic and histological analyses. The results indicated that PPF-based biocompatible scaffolds with immobilized RGD peptide could effectively support initial adhesion and proliferation of human chondrocytes. Such a 3D bio-printable scaffold can offer an opportunity to promote cartilage tissue regeneration.
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Affiliation(s)
- Chi Bum Ahn
- a Department of Molecular Medicine, College of Medicine , Gachon University , Incheon , Korea
| | - Youngjo Kim
- b Soonchunhyang Institute of Medi-bio Science , Soonchunhyang University , Cheonan-si , Republic of Korea
| | - Sung Jean Park
- c College of Pharmacy , Gachon University , Incheon , Korea
| | - Yongsung Hwang
- b Soonchunhyang Institute of Medi-bio Science , Soonchunhyang University , Cheonan-si , Republic of Korea.,d Institute of Tissue Regeneration, College of Medicine , Soonchunhyang University , Cheonan-si , Republic of Korea
| | - Jin Woo Lee
- a Department of Molecular Medicine, College of Medicine , Gachon University , Incheon , Korea
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37
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Xu Y, Luong D, Walker JM, Dean D, Becker ML. Modification of Poly(propylene fumarate)–Bioglass Composites with Peptide Conjugates to Enhance Bioactivity. Biomacromolecules 2017; 18:3168-3177. [DOI: 10.1021/acs.biomac.7b00828] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Yanyi Xu
- Department
of Polymer Science, The University of Akron, Akron, Ohio 44325, United States
- Department
of Environmental Health, School of Public Health, Fudan University, Shanghai 200032, China
| | - Derek Luong
- Department
of Polymer Science, The University of Akron, Akron, Ohio 44325, United States
| | - Jason M. Walker
- Department
of Plastic Surgery, The Ohio State University, Columbus, Ohio 43210, United States
| | - David Dean
- Department
of Plastic Surgery, The Ohio State University, Columbus, Ohio 43210, United States
| | - Matthew L. Becker
- Department
of Polymer Science, The University of Akron, Akron, Ohio 44325, United States
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