1
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Kang MS, Yu Y, Park R, Heo HJ, Lee SH, Hong SW, Kim YH, Han DW. Highly Aligned Ternary Nanofiber Matrices Loaded with MXene Expedite Regeneration of Volumetric Muscle Loss. NANO-MICRO LETTERS 2024; 16:73. [PMID: 38175358 PMCID: PMC10767178 DOI: 10.1007/s40820-023-01293-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 11/16/2023] [Indexed: 01/05/2024]
Abstract
Current therapeutic approaches for volumetric muscle loss (VML) face challenges due to limited graft availability and insufficient bioactivities. To overcome these limitations, tissue-engineered scaffolds have emerged as a promising alternative. In this study, we developed aligned ternary nanofibrous matrices comprised of poly(lactide-co-ε-caprolactone) integrated with collagen and Ti3C2Tx MXene nanoparticles (NPs) (PCM matrices), and explored their myogenic potential for skeletal muscle tissue regeneration. The PCM matrices demonstrated favorable physicochemical properties, including structural uniformity, alignment, microporosity, and hydrophilicity. In vitro assays revealed that the PCM matrices promoted cellular behaviors and myogenic differentiation of C2C12 myoblasts. Moreover, in vivo experiments demonstrated enhanced muscle remodeling and recovery in mice treated with PCM matrices following VML injury. Mechanistic insights from next-generation sequencing revealed that MXene NPs facilitated protein and ion availability within PCM matrices, leading to elevated intracellular Ca2+ levels in myoblasts through the activation of inducible nitric oxide synthase (iNOS) and serum/glucocorticoid regulated kinase 1 (SGK1), ultimately promoting myogenic differentiation via the mTOR-AKT pathway. Additionally, upregulated iNOS and increased NO- contributed to myoblast proliferation and fiber fusion, thereby facilitating overall myoblast maturation. These findings underscore the potential of MXene NPs loaded within highly aligned matrices as therapeutic agents to promote skeletal muscle tissue recovery.
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Affiliation(s)
- Moon Sung Kang
- Department of Cogno-Mechatronics Engineering, College of Nanoscience and Nanotechnology, Pusan National University, Busan, 46241, Republic of Korea
| | - Yeuni Yu
- Medical Research Institute, School of Medicine, Pusan National University, Yangsan, 50612, Republic of Korea
| | - Rowoon Park
- Department of Cogno-Mechatronics Engineering, College of Nanoscience and Nanotechnology, Pusan National University, Busan, 46241, Republic of Korea
| | - Hye Jin Heo
- Department of Anatomy, School of Medicine, Pusan National University, Yangsan, 50612, Republic of Korea
| | - Seok Hyun Lee
- Department of Cogno-Mechatronics Engineering, College of Nanoscience and Nanotechnology, Pusan National University, Busan, 46241, Republic of Korea
- Osstem Implant Inc., Seoul, 07789, Republic of Korea
| | - Suck Won Hong
- Department of Cogno-Mechatronics Engineering, College of Nanoscience and Nanotechnology, Pusan National University, Busan, 46241, Republic of Korea.
- Engineering Research Center for Color‑Modulated Extra‑Sensory Perception Technology, Pusan National University, Busan, 46241, Republic of Korea.
| | - Yun Hak Kim
- Medical Research Institute, School of Medicine, Pusan National University, Yangsan, 50612, Republic of Korea.
- Department of Biomedical Informatics, School of Medicine, Pusan National University, Yangsan, 50612, Republic of Korea.
- Periodontal Disease Signaling Network Research Center and Dental and Life Science Institute, School of Dentistry, Pusan National University, Yangsan, 50612, Republic of Korea.
| | - Dong-Wook Han
- Department of Cogno-Mechatronics Engineering, College of Nanoscience and Nanotechnology, Pusan National University, Busan, 46241, Republic of Korea.
- BIO-IT Fusion Technology Research Institute, Pusan National University, Busan, 46241, Republic of Korea.
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2
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Jordao A, Cléret D, Dhayer M, Le Rest M, Cao S, Rech A, Azaroual N, Drucbert AS, Maboudou P, Dekiouk S, Germain N, Payen J, Guerreschi P, Marchetti P. Engineering 3D-Printed Bioresorbable Scaffold to Improve Non-Vascularized Fat Grafting: A Proof-of-Concept Study. Biomedicines 2023; 11:3337. [PMID: 38137558 PMCID: PMC10741522 DOI: 10.3390/biomedicines11123337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 11/29/2023] [Accepted: 12/11/2023] [Indexed: 12/24/2023] Open
Abstract
Autologous fat grafting is the gold standard for treatment in patients with soft-tissue defects. However, the technique has a major limitation of unpredictable fat resorption due to insufficient blood supply in the initial phase after transplantation. To overcome this problem, we investigated the capability of a medical-grade poly L-lactide-co-poly ε-caprolactone (PLCL) scaffold to support adipose tissue and vascular regeneration. Deploying FDM 3D-printing, we produced a bioresorbable porous scaffold with interconnected pore networks to facilitate nutrient and oxygen diffusion. The compressive modulus of printed scaffold mimicked the mechanical properties of native adipose tissue. In vitro assays demonstrated that PLCL scaffolds or their degradation products supported differentiation of preadipocytes into viable mature adipocytes under appropriate induction. Interestingly, the chorioallantoic membrane assay revealed vascular invasion inside the porous scaffold, which represented a guiding structure for ingrowing blood vessels. Then, lipoaspirate-seeded scaffolds were transplanted subcutaneously into the dorsal region of immunocompetent rats (n = 16) for 1 or 2 months. The volume of adipose tissue was maintained inside the scaffold over time. Histomorphometric evaluation discovered small- and normal-sized perilipin+ adipocytes (no hypertrophy) classically organized into lobular structures inside the scaffold. Adipose tissue was surrounded by discrete layers of fibrous connective tissue associated with CD68+ macrophage patches around the scaffold filaments. Adipocyte viability, assessed via TUNEL staining, was sustained by the presence of a high number of CD31-positive vessels inside the scaffold, confirming the CAM results. Overall, our study provides proof that 3D-printed PLCL scaffolds can be used to improve fat graft volume preservation and vascularization, paving the way for new therapeutic options for soft-tissue defects.
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Affiliation(s)
- Amélia Jordao
- UMR9020–UMR-S 1277–Canther–Cancer Heterogeneity, Plasticity and Resistance to Therapies, CNRS, Inserm, CHU Lille, Oncolille, University Lille, F-59000 Lille, France; (A.J.); (N.G.)
- Lattice Medical, 80 rue du Docteur Yersin, F-59120 Loos, France
| | - Damien Cléret
- Lattice Medical, 80 rue du Docteur Yersin, F-59120 Loos, France
| | - Mélanie Dhayer
- UMR9020–UMR-S 1277–Canther–Cancer Heterogeneity, Plasticity and Resistance to Therapies, CNRS, Inserm, CHU Lille, Oncolille, University Lille, F-59000 Lille, France; (A.J.); (N.G.)
| | - Mégann Le Rest
- Lattice Medical, 80 rue du Docteur Yersin, F-59120 Loos, France
| | - Shengheng Cao
- Lattice Medical, 80 rue du Docteur Yersin, F-59120 Loos, France
| | - Alexandre Rech
- University of Lille, Faculté de Pharmacie, Plateau RMN, UFR3S, F-59000 Lille, France
| | - Nathalie Azaroual
- University of Lille, ULR 7365–GRITA–Groupe de Recherche Sur Les Formes Injectables Et Les Technologies Associées, F-59000 Lille, France;
| | - Anne-Sophie Drucbert
- U 1008 Controlled Drug Delivery Systems and Biomaterials, Inserm, F-59000 Lille, France
| | | | - Salim Dekiouk
- UMR9020–UMR-S 1277–Canther–Cancer Heterogeneity, Plasticity and Resistance to Therapies, CNRS, Inserm, CHU Lille, Oncolille, University Lille, F-59000 Lille, France; (A.J.); (N.G.)
- Centre de Bio-Pathologie, Banque de Tissus, CHU Lille, F-59000 Lille, France
| | - Nicolas Germain
- UMR9020–UMR-S 1277–Canther–Cancer Heterogeneity, Plasticity and Resistance to Therapies, CNRS, Inserm, CHU Lille, Oncolille, University Lille, F-59000 Lille, France; (A.J.); (N.G.)
- Centre de Bio-Pathologie, Banque de Tissus, CHU Lille, F-59000 Lille, France
| | - Julien Payen
- Lattice Medical, 80 rue du Docteur Yersin, F-59120 Loos, France
| | - Pierre Guerreschi
- U 1008 Controlled Drug Delivery Systems and Biomaterials, Inserm, F-59000 Lille, France
- Service de Chirurgie Plastique, CHU Lille, F-59000 Lille, France
| | - Philippe Marchetti
- UMR9020–UMR-S 1277–Canther–Cancer Heterogeneity, Plasticity and Resistance to Therapies, CNRS, Inserm, CHU Lille, Oncolille, University Lille, F-59000 Lille, France; (A.J.); (N.G.)
- Centre de Bio-Pathologie, Banque de Tissus, CHU Lille, F-59000 Lille, France
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3
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He W, Ye L, Coates P, Caton-Rose F, Zhao X. Construction of fully biodegradable poly(L-lactic acid)/poly(D-lactic acid)-poly(lactide-co-caprolactone) block polymer films: Viscoelasticity, processability and flexibility. Int J Biol Macromol 2023; 236:123980. [PMID: 36898455 DOI: 10.1016/j.ijbiomac.2023.123980] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 03/03/2023] [Accepted: 03/04/2023] [Indexed: 03/12/2023]
Abstract
Development of biodegradable polymer films is essential for sustainable energy conservation and ecological protection. In this work, to improve the processability and toughness of poly(lactic acid) (PLA) films, poly(lactide-co-caprolactone) (PLCL) segments were introduced into poly(L-lactic acid) (PLLA)/poly(D-lactic acid) (PDLA) chains via chain branching reactions during reactive processing, and fully biodegradable/flexible PLLA/D-PLCL block polymer with long-chain branches and stereocomplex (SC) crystalline structure was prepared. Compared with neat PLLA, PLLA/D-PLCL exhibited much higher complex viscosity/storage modulus, lower tanδ values in terminal region and obvious strain-hardening behavior. Through biaxial drawing, PLLA/D-PLCL films were prepared, which showed improved uniformity and non-preferred orientation. With increasing draw ratio, the total crystallinity (Xc) and Xc for SC crystal both increased. By introduction of PDLA, the two phases of PLLA and PLCL penetrated and entangled with each other, and the phase structure transformed from "sea-island" structure to "co-continuous network" structure, which was beneficial for exerting the toughening effect of flexible PLCL molecules on PLA matrix. The tensile strength and elongation at break of PLLA/D-PLCL films increased from 51.87 MPa and 28.22 % of neat PLLA film to 70.82 MPa and 148.28 %. This work provided a new strategy for developing fully biodegradable polymer films with high performance.
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Affiliation(s)
- Wenjun He
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Lin Ye
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Phil Coates
- School of Engineering, Design and Technology, University of Bradford, Bradford, UK
| | - Fin Caton-Rose
- School of Engineering, Design and Technology, University of Bradford, Bradford, UK
| | - Xiaowen Zhao
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China.
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Nirwan VP, Lasak M, Ciepluch K, Fahmi A. Hybrid Nanomat: Copolymer Template CdSe Quantum Dots In Situ Stabilized and Immobilized within Nanofiber Matrix. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:nano13040630. [PMID: 36838998 PMCID: PMC9959613 DOI: 10.3390/nano13040630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/26/2023] [Accepted: 01/31/2023] [Indexed: 05/12/2023]
Abstract
Fabrication and characterization of hybrid nanomats containing quantum dots can play a prominent role in the development of advanced biosensors and bio-based semiconductors. Owing to their size-dependent properties and controlled nanostructures, quantum dots (QDs) exhibit distinct optical and electronic characteristics. However, QDs include heavy metals and often require stabilizing agents which are toxic for biological applications. Here, to mitigate the use of toxic ligands, cadmium selenide quantum dots (CdSe QDs) were synthesized in situ with polyvinylpyrrolidone (PVP) at room temperature. The addition of PVP polymer provided size regulation, stability, and control over size distribution of CdSe QDs. The characterization of the optical properties of the CdSe QDs was performed using fluorescence and ultraviolet-visible (UV-Vis) spectroscopy. CdSe QDs exhibited a typical absorbance peak at 280 nm and a photoluminescence emission peak at 580 nm. Transmission electron microscopy (TEM) micrographs demonstrated that CdSe QDs having an average size of 6 ± 4 nm were obtained via wet chemistry method. CdSe QDs were immobilized in a blend of PVP and poly(L-lactide-co-ε-caprolactone) (PL-b-CL) copolymer that was electrospun to produce nanofibers. Scanning electron microscopy (SEM), thermal analyses and attenuated total reflectance Fourier-transform infrared spectroscopy (ATR-FTIR) were used to characterize properties of fabricated nanofibers. Both pristine and hybrid nanofibers possessed cylindrical geometry and rough surface features, facilitating increased surface area. Infrared absorption spectra showed a slight shift in absorbance peaks due to interaction of PVP-coated CdSe QDs and nanofiber matrix. The presence of CdSe QDs influenced the fiber diameter and their thermal stability. Further, in vitro biological analyses of hybrid nanofibers showed promising antibacterial effect and decline in cancer cell viability. This study offers a simple approach to obtain hybrid nanomats immobilized with size-controlled PVP-coated CdSe QDs, which have potential applications as biosensors and antibacterial and anticancer cell agents.
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Affiliation(s)
- Viraj P. Nirwan
- Faculty of Technology and Bionics, Rhine-Waal University of Applied Science, Marie-Curie-Straβe 1, 47533 Kleve, Germany
| | - Magdalena Lasak
- Division of Medical Biology, Jan Kochanowski University in Kielce, Uniwersytecka Street 7, 25-406 Kielce, Poland
| | - Karol Ciepluch
- Division of Medical Biology, Jan Kochanowski University in Kielce, Uniwersytecka Street 7, 25-406 Kielce, Poland
| | - Amir Fahmi
- Faculty of Technology and Bionics, Rhine-Waal University of Applied Science, Marie-Curie-Straβe 1, 47533 Kleve, Germany
- Correspondence: ; Tel.: +49-0282-1806-73634
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5
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Górecka Ż, Choińska E, Heljak M, Święszkowski W. Long-Term In Vitro Assessment of Biodegradable Radiopaque Composites for Fiducial Marker Fabrication. Int J Mol Sci 2022; 23:ijms232214363. [PMID: 36430842 PMCID: PMC9697335 DOI: 10.3390/ijms232214363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 11/04/2022] [Accepted: 11/05/2022] [Indexed: 11/22/2022] Open
Abstract
Biodegradable polymer-based composite materials may be successfully utilised to fabricate fiducial markers (FMs), which are intended to precisely label tumour margins during image-guided surgery or radiotherapy. However, due to matrix degradability, the stability of the functional properties of FMs depends on the chosen polymer. Thus, this study aimed to investigate novel radiopaque composites which varied in the polymeric matrix-polycaprolactone (PCL), poly(L-lactide-co-caprolactone) (P[LAcoCL]) with two molar ratios (70:30 and 85:15), and poly(L-lactide-co-glycolide) (with molar ratio 82:18). The radiopaque component of the materials was a mixture of barium sulphate and hydroxyapatite. The changes in water contact angle, stiffness, and radiopacity occurring during the 24-week-long degradation experiment were examined for the first time. This study comprehensively analyses the microstructural causes of composites behaviour within degradation experiments using thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), gel permitted chromatography (GPC), and scanning electron microscopy (SEM). The obtained results suggest that the utilized biodegradable matrix plays an essential role in radiopaque composite properties and stability thereof. This long-term in vitro assessment enabled a comparison of the materials and aided in choosing the most favourable composite for FMs' fabrication.
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Affiliation(s)
- Żaneta Górecka
- Division of Materials Design, Faculty of Materials Science and Engineering, Warsaw University of Technology, 141 Woloska Str., 02-507 Warsaw, Poland
- Centre for Advanced Materials and Technologies CEZAMAT, Warsaw University of Technology, 19 Poleczki Str., 02-882 Warsaw, Poland
| | - Emilia Choińska
- Division of Materials Design, Faculty of Materials Science and Engineering, Warsaw University of Technology, 141 Woloska Str., 02-507 Warsaw, Poland
| | - Marcin Heljak
- Division of Materials Design, Faculty of Materials Science and Engineering, Warsaw University of Technology, 141 Woloska Str., 02-507 Warsaw, Poland
| | - Wojciech Święszkowski
- Centre for Advanced Materials and Technologies CEZAMAT, Warsaw University of Technology, 19 Poleczki Str., 02-882 Warsaw, Poland
- Correspondence:
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Lee SH, Jeon S, Qu X, Kang MS, Lee JH, Han DW, Hong SW. Ternary MXene-loaded PLCL/collagen nanofibrous scaffolds that promote spontaneous osteogenic differentiation. NANO CONVERGENCE 2022; 9:38. [PMID: 36029392 PMCID: PMC9420163 DOI: 10.1186/s40580-022-00329-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 08/17/2022] [Indexed: 05/31/2023]
Abstract
Conventional bioinert bone grafts often have led to failure in osseointegration due to low bioactivity, thus much effort has been made up to date to find alternatives. Recently, MXene nanoparticles (NPs) have shown prominent results as a rising material by possessing an osteogenic potential to facilitate the bioactivity of bone grafts or scaffolds, which can be attributed to the unique repeating atomic structure of two carbon layers existing between three titanium layers. In this study, we produced MXene NPs-integrated the ternary nanofibrous matrices of poly(L-lactide-co-ε-caprolactone, PLCL) and collagen (Col) decorated with MXene NPs (i.e., PLCL/Col/MXene), as novel scaffolds for bone tissue engineering, via electrospinning to explore the potential benefits for the spontaneous osteogenic differentiation of MC3T3-E1 preosteoblasts. The cultured cells on the physicochemical properties of the nanofibrous PLCL/Col/MXene-based materials revealed favorable interactions with the supportive matrices, highly suitable for the growth and survival of preosteoblasts. Furthermore, the combinatorial ternary material system of the PLCL/Col/MXene nanofibers obviously promoted spontaneous osteodifferentiation with positive cellular responses by providing effective microenvironments for osteogenesis. Therefore, our results suggest that the unprecedented biofunctional advantages of the MXene-integrated PLCL/Col nanofibrous matrices can be expanded to a wide range of strategies for the development of effective scaffolds in bone tissue regeneration.
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Affiliation(s)
- Seok Hyun Lee
- Department of Cogno-Mechatronics Engineering, College of Nanoscience and Nanotechnology, Pusan National University, Busan, 46241, Republic of Korea
| | - Sangheon Jeon
- Department of Cogno-Mechatronics Engineering, College of Nanoscience and Nanotechnology, Pusan National University, Busan, 46241, Republic of Korea
| | - Xiaoxiao Qu
- Department of Cogno-Mechatronics Engineering, College of Nanoscience and Nanotechnology, Pusan National University, Busan, 46241, Republic of Korea
| | - Moon Sung Kang
- Department of Cogno-Mechatronics Engineering, College of Nanoscience and Nanotechnology, Pusan National University, Busan, 46241, Republic of Korea
| | - Jong Ho Lee
- Daan Korea Corporation, Seoul, 06252, Republic of Korea
| | - Dong-Wook Han
- Department of Cogno-Mechatronics Engineering, College of Nanoscience and Nanotechnology, Pusan National University, Busan, 46241, Republic of Korea.
- BIO-IT Fusion Technology Research Institute, Pusan National University, Busan, 46241, Republic of Korea.
| | - Suck Won Hong
- Department of Cogno-Mechatronics Engineering, College of Nanoscience and Nanotechnology, Pusan National University, Busan, 46241, Republic of Korea.
- Engineering Research Center for Color-Modulated Extra-Sensory Perception Technology, Pusan National University, Busan, 46241, Republic of Korea.
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7
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Avci MO, Muzoglu N, Yilmaz AE, Yarman BS. Antibacterial, cytotoxicity and biodegradability studies of polycaprolactone nanofibers holding green synthesized Ag nanoparticles using atropa belladonna extract. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2022; 33:1157-1180. [PMID: 35192427 DOI: 10.1080/09205063.2022.2045665] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 02/19/2022] [Accepted: 02/20/2022] [Indexed: 06/14/2023]
Abstract
Atropa belladonna is one of the herbs used to treat wounds and prevent inflammation. This study provides a scientific assessment for the wound healing potential of biodegradable nanofibers containing Ag nanoparticles encapsulated with atropa belladonna extract (eAgNPs). Ultraviolet-visible (UV-vis) spectroscopy was used to observe the localized surface plasmon resonance (LSPR) band of AgNPs synthesized from atropa belladonna extract prepared under different conditions. Polycaprolactone (PCL) nanofibers with eAgNPs were fabricated using the electrospinning technique. The distribution of AgNPs and eAgNPs and the size of nanofibers were characterized with scanning and transmission electron microscopy (SEM, TEM) before and after degradation at the end of 18 weeks. Fourier transform infrared (FTIR) spectroscopy showed the surface interactivity between AgNPs, atropa belladonna extract and PCL nanofibers and also approved the modification of PCL nanofibers with eAgNPs. X-ray diffraction analysis (XRD) defined the formation of the crystalline AgNPs and appreciated the orientation of the nanofibers. Results of tension tests revealed that modification of PCL nanofibers with pure AgNPs and eAgNPs significantly increased strength and tensile modulus. Due to the hydrophobic nature of PCL, modification with pure AgNPs and eAgNPs slightly reduced its hydrophobicity. Biodegradation tests of PCL nanofibers with eAgNPs exhibited a higher degradation rate than neat PCL nanofibers. In vitro MTT results revealed that eAgNPs doped PCL samples have better cell viability than AgNPs doped and neat PCL nanofibers. Owing to their antibacterial properties, biodegradation rates, low cytotoxicity, mechanical and surface morphologic properties of AgNPs modified PCL nanofibers containing atropa belladonna are considered to have a great potential for skin regeneration.
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Affiliation(s)
- Muhammed Onur Avci
- Department of Biomedical Engineering, Istanbul University-Cerrahpasa (IUC), Istanbul, Turkey
| | - Nedim Muzoglu
- Department of Biomedical Engineering, Istanbul University-Cerrahpasa (IUC), Istanbul, Turkey
| | - Aysel Ersoy Yilmaz
- Department of Electric and Electronic Engineering, Istanbul University-Cerrahpasa (IUC), Istanbul, Turkey
| | - Binboga Siddik Yarman
- Department of Electric and Electronic Engineering, Istanbul University-Cerrahpasa (IUC), Istanbul, Turkey
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Regeneration of Articular Cartilage Using Membranes of Polyester Scaffolds in a Rabbit Model. Pharmaceutics 2022; 14:pharmaceutics14051016. [PMID: 35631602 PMCID: PMC9143412 DOI: 10.3390/pharmaceutics14051016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Revised: 05/03/2022] [Accepted: 05/05/2022] [Indexed: 02/04/2023] Open
Abstract
One promising method for cartilage regeneration involves combining known methods, such as the microfracture technique with biomaterials, e.g., scaffolds (membranes). The most important feature of such implants is their appropriate rate of biodegradation, without the production of toxic metabolites. This study presents work on two different membranes made of polyester (L-lactide-co-ε-caprolactone-PLCA) named “PVP and “Z”. The difference between them was the use of different pore precursors—polyvinylpyrrolidone in the “PVP” scaffold and gelatin in the “Z” scaffold. These were implemented in the articular cartilage defects of rabbit knee joints (defects were created for the purpose of the study). After 8, 16, and 24 weeks of observation, and the subsequent termination of the animals, histopathology and gel permeation chromatography (GPC) examinations were performed. Statistical analysis proved that the membranes support the regeneration process. GPC testing proved that the biodegradation process is progressing exponentially, causing the membranes to degrade at the appropriate time. The surgical technique we used meets all the requirements without causing the membrane to migrate after implantation. The “PVP” membrane is better due to the fact that after 24 weeks of observation there was a statistical trend for higher histological ratings. It is also better because it is easier to implant due to its lower fragility then membrane “Z”. We conclude that the selected membranes seem to support the regeneration of articular cartilage in the rabbit model.
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9
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Rittinghaus RD, Zenner J, Pich A, Kol M, Herres‐Pawlis S. Master of Chaos and Order: Opposite Microstructures of PCL-co-PGA-co-PLA Accessible by a Single Catalyst. Angew Chem Int Ed Engl 2022; 61:e202112853. [PMID: 34984790 PMCID: PMC9305917 DOI: 10.1002/anie.202112853] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Indexed: 12/27/2022]
Abstract
One catalyst, two reaction set-ups, three monomers and unlimited macromolecular microstructural designs: The iron guanidine complex [FeCl2 (TMG5NMe2 asme)] (1) polymerizes lactide faster than the industrially used Sn(Oct)2 and shows high activity towards glycolide and ϵ-caprolactone. Its distinguished features enable the synthesis of both block and random-like copolymers in the melt by a simple change of the polymerization set-up. Sequential addition of monomers yields highly ordered block copolymers including the symmetrical PLA-b-PGA-b-PCL-b-PGA-b-PLA pentablock copolymers, while polymerizations of monomer mixtures feature enhanced transesterifications and pave the way to di- and terpolymers with highly dispersed repeating unit distributions. A robust catalyst active under industrially applicable conditions and producing copolymers with desired microstructures is a major step towards biocompatible polymers with tailor-made properties as alternatives for traditional plastics on the way towards a sustainable, circular material flow.
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Affiliation(s)
- Ruth D. Rittinghaus
- Institute of Inorganic ChemistryRWTH Aachen UniversityLandoltweg 152074AachenGermany
| | - Johannes Zenner
- Institute of Inorganic ChemistryRWTH Aachen UniversityLandoltweg 152074AachenGermany
| | - Andrij Pich
- Institute of Technical and Macromolecular ChemistryRWTH Aachen UniversityWorringerweg 252074AachenGermany
| | - Moshe Kol
- The School of ChemistryTel Aviv UniversityRamat-Aviv, Tel-Aviv6997801Israel
| | - Sonja Herres‐Pawlis
- Institute of Inorganic ChemistryRWTH Aachen UniversityLandoltweg 152074AachenGermany
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V.G. R, Wilson J, V. Thomas L, Nair PD. Assessing the 3D Printability of an Elastomeric Poly(caprolactone- co-lactide) Copolymer as a Potential Material for 3D Printing Tracheal Scaffolds. ACS OMEGA 2022; 7:7002-7011. [PMID: 35252691 PMCID: PMC8892476 DOI: 10.1021/acsomega.1c06679] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 01/24/2022] [Indexed: 06/14/2023]
Abstract
The advent of 3D printing technology has made remarkable progress in the field of tissue engineering. Yet, it has been challenging to reproduce the desired mechanical properties of certain tissues by 3D printing. This was majorly due to the lack of 3D printable materials possessing mechanical properties similar to the native tissue. In this study, we have synthesized four different ratios of poly(caprolactone-co-lactide (PLCL) and tested their 3D printing capabilities. The physicochemical properties of the material were characterized using Fourier-transform infrared (FTIR) spectroscopy, nuclear magnetic resonance (NMR) spectroscopy, gel permeation chromatography (GPC), and differential scanning calorimetry (DSC). Furthermore, the mechanical properties were assessed using the universal testing machine (UTM). The ratio with the higher lactide content was found to have better printability. Out of the different ratios assessed, a suitable ratio having the desired mechanical properties and printability was identified and 3D printed into a tracheal scaffold. Thus, PLCL can be a potential material for 3D printing of tissues like the trachea.
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11
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Rittinghaus RD, Zenner J, Pich A, Kol M, Herres‐Pawlis S. Kontrolle über Chaos und Ordnung: Gegensätzliche Mikrostrukturen von PCL‐
co
‐PGA‐
co
‐PLA durch einen einzigen Katalysator zugänglich**. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202112853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Ruth D. Rittinghaus
- Institut für Anorganische Chemie RWTH Aachen University Landoltweg 1 52074 Aachen Deutschland
| | - Johannes Zenner
- Institut für Anorganische Chemie RWTH Aachen University Landoltweg 1 52074 Aachen Deutschland
| | - Andrij Pich
- Institut für Technische und Makromolekulare Chemie RWTH Aachen University Worringerweg 2 52074 Aachen Deutschland
| | - Moshe Kol
- The School of Chemistry Tel Aviv University Ramat-Aviv, Tel-Aviv 6997801 Israel
| | - Sonja Herres‐Pawlis
- Institut für Anorganische Chemie RWTH Aachen University Landoltweg 1 52074 Aachen Deutschland
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12
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Preliminary Study on the Simulation of a Radiation Damage Analysis of Biodegradable Polymers. MATERIALS 2021; 14:ma14226777. [PMID: 34832188 PMCID: PMC8620408 DOI: 10.3390/ma14226777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 11/02/2021] [Accepted: 11/05/2021] [Indexed: 11/18/2022]
Abstract
In this study, biodegradable poly(L-lactide-co-ε-caprolactone) (PLCL) and poly(L-co-d,l lactide) (PLDLA) were evaluated using Geant4 (G4EmStandardPhysics_option4) for damage simulation, in order to predict the safety of these biodegradable polymers against gamma ray sterilization. In the PLCL damage model, both chain scission and crosslinking reactions appear to occur at a radiation dose in the range 0–200 kGy, but the chain cleavage reaction is expected to be relatively dominant at high irradiation doses above 500 kGy. On the other hand, the PLDLA damage model predicted that the chain cleavage reaction would prevail at the total irradiation dose (25–500 kGy). To verify the simulation results, the physicochemical changes in the irradiated PLCL and PLDLA films were characterized by GPC (gel permeation chromatography), ATR-FTIR (attenuated total reflection Fourier transform infrared), and DSC (difference scanning calorimetry) analyses. The Geant4 simulation curve for the radiation-induced damage to the molecular weight was consistent with the experimentally obtained results. These results imply that the pre-simulation study can be useful for predicting the optimal irradiation dose and ensuring material safety, particularly for implanted biodegradable materials in radiation processing.
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13
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Jin S, Pu Y, Guo Z, Zhu W, Li S, Zhou X, Gao W, He B. A double-layer dura mater based on poly(caprolactone- co-lactide) film and polyurethane sponge: preparation, characterization, and biodegradation study. J Mater Chem B 2021; 9:3863-3873. [PMID: 33928320 DOI: 10.1039/d1tb00454a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Synthetic, biodegradable polymers hold great potential in dura mater substitution. In this study, a dura mater-mimetic double-layer film@sponge composite was developed. The composite contains a poly(caprolactone-co-lactide) (PCLA) film and polyurethane (PU) sponge, which simulates the hard and soft layers of dura mater, respectively. PCLA films were prepared by a solution-casting method and showed excellent mechanical properties and tolerance to water. PU sponge was hydrophilic and had a high water-absorption rate (about 500%). The double-layer composite (film@sponge) integrated the good mechanical properties of the films and the good water absorption of the sponge. The excellent biocompatibility and biodegradability of the PCLA film@PU sponge composites were verified by in vitro degradation and cytotoxicity study and the in vivo implantation in the back of rats. Importantly, the film@sponge composite had a suitable degradation rate and good biocompatibility, holding potential in the field of dural repair.
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Affiliation(s)
- Shu Jin
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China.
| | - Yuji Pu
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu 610064, China.
| | - Zhaoyuan Guo
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu 610064, China.
| | - Wangwei Zhu
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu 610064, China.
| | - Sai Li
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China.
| | - Xi Zhou
- Ningbo Baoting Biotechnology Co., Ltd, Ningbo 315001, China
| | - Wenxia Gao
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou 325027, China
| | - Bin He
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu 610064, China.
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14
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Duan R, Wang Y, Zhang Y, Wang Z, Du F, Du B, Su D, Liu L, Li X, Zhang Q. Blending with Poly(l-lactic acid) Improves the Printability of Poly(l-lactide- co-caprolactone) and Enhances the Potential Application in Cartilage Tissue Engineering. ACS OMEGA 2021; 6:18300-18313. [PMID: 34308061 PMCID: PMC8296602 DOI: 10.1021/acsomega.1c02190] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 06/25/2021] [Indexed: 06/13/2023]
Abstract
Poly(l-lactide-co-caprolactone) (PLCL, 50:50) has been used in cartilage tissue engineering because of its high elasticity. However, its mechanical properties, including its rigidity and viscoelasticity, must be improved for compatibility with native cartilage. In this study, a set of PLCL/poly(l-lactic acid) (PLLA) blends was prepared by blending with different mass ratios of PLLA that range from 10 to 50%, using thermoplastic techniques. After testing the properties of these PLCL/PLLA blends, they were used to fabricate scaffolds by the 3D printing technology. The structures and viscoelastic behavior of the PLCL/PLLA scaffolds were determined, and then, the potential application of the scaffolds in cartilage tissue engineering was evaluated by chondrocytes culture. All blends demonstrate good thermal stability for the 3D printing technology. All blends show good toughness, while the rigidity of PLCL is increased through PLLA blending, and Young's modulus of blends with 10-20% PLLA is similar to that of native cartilage. Furthermore, blending with PLLA improves the processability of PLCL for 3D printing, and the compression modulus and viscoelasticity of 3D-printed PLCL/PLLA scaffolds are different from that of PLCL. Additionally, the stress relaxation time (t 1/2) of the PLCL/PLLA scaffolds, which is important for chondrogenesis, is dramatically shortened compared with the pure PLCL scaffold at the same 3D-printing filling rate. Consistently, the PLCL90PLLA10 scaffold at a 70% filling rate with much shorter t 1/2 is more conducive to the proliferation and chondrogenesis of in vitro seeded chondrocytes accompanied by upregulated expression of SOX9 than the PLCL scaffold. Taken together, these results demonstrate that blending with PLLA improves the printability of PLCL and enhances its potential application, particularly PLCL/PLLA scaffolds with a low ratio of PLLA, in cartilage tissue engineering.
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Affiliation(s)
- Ruiping Duan
- The
Key Laboratory of Biomedical Material of Tianjin, Biomedical Barriers
Research Center, Chinese Academy of Medical
Sciences & Peking Union Medical College Institute of Biomedical
Engineering, 236 Baidi Road, NanKai District, Tianjin 300192, P.R. China
| | - Yimeng Wang
- The
Key Laboratory of Biomedical Material of Tianjin, Biomedical Barriers
Research Center, Chinese Academy of Medical
Sciences & Peking Union Medical College Institute of Biomedical
Engineering, 236 Baidi Road, NanKai District, Tianjin 300192, P.R. China
| | - Yiyun Zhang
- The
Key Laboratory of Biomedical Material of Tianjin, Biomedical Barriers
Research Center, Chinese Academy of Medical
Sciences & Peking Union Medical College Institute of Biomedical
Engineering, 236 Baidi Road, NanKai District, Tianjin 300192, P.R. China
| | - Ziqiang Wang
- The
Key Laboratory of Biomedical Material of Tianjin, Biomedical Barriers
Research Center, Chinese Academy of Medical
Sciences & Peking Union Medical College Institute of Biomedical
Engineering, 236 Baidi Road, NanKai District, Tianjin 300192, P.R. China
| | - Fuchong Du
- The
Key Laboratory of Biomedical Material of Tianjin, Biomedical Barriers
Research Center, Chinese Academy of Medical
Sciences & Peking Union Medical College Institute of Biomedical
Engineering, 236 Baidi Road, NanKai District, Tianjin 300192, P.R. China
| | - Bo Du
- The
Key Laboratory of Biomedical Material of Tianjin, Biomedical Barriers
Research Center, Chinese Academy of Medical
Sciences & Peking Union Medical College Institute of Biomedical
Engineering, 236 Baidi Road, NanKai District, Tianjin 300192, P.R. China
| | - Danning Su
- The
Key Laboratory of Biomedical Material of Tianjin, Biomedical Barriers
Research Center, Chinese Academy of Medical
Sciences & Peking Union Medical College Institute of Biomedical
Engineering, 236 Baidi Road, NanKai District, Tianjin 300192, P.R. China
| | - Lingrong Liu
- The
Key Laboratory of Biomedical Material of Tianjin, Biomedical Barriers
Research Center, Chinese Academy of Medical
Sciences & Peking Union Medical College Institute of Biomedical
Engineering, 236 Baidi Road, NanKai District, Tianjin 300192, P.R. China
| | - Xuemin Li
- The
Key Laboratory of Biomedical Material of Tianjin, Biomedical Barriers
Research Center, Chinese Academy of Medical
Sciences & Peking Union Medical College Institute of Biomedical
Engineering, 236 Baidi Road, NanKai District, Tianjin 300192, P.R. China
| | - Qiqing Zhang
- The
Key Laboratory of Biomedical Material of Tianjin, Biomedical Barriers
Research Center, Chinese Academy of Medical
Sciences & Peking Union Medical College Institute of Biomedical
Engineering, 236 Baidi Road, NanKai District, Tianjin 300192, P.R. China
- Institute
of Biomedical Engineering, the Second Clinical Medical College, Jinan University (Shenzhen People’s Hospital), Shenzhen 518020, Guangdong, P.R. China
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15
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Biomimetic tubular scaffold with heparin conjugation for rapid degradation in in situ regeneration of a small diameter neoartery. Biomaterials 2021; 274:120874. [PMID: 34051629 DOI: 10.1016/j.biomaterials.2021.120874] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 04/27/2021] [Accepted: 05/02/2021] [Indexed: 01/22/2023]
Abstract
To address the clinical need for readily available small diameter vascular grafts, biomimetic tubular scaffolds were developed for rapid in situ blood vessel regeneration. The tubular scaffolds were designed to have an inner layer that is porous, interconnected, and with a nanofibrous architecture, which provided an excellent microenvironment for host cell invasion and proliferation. Through the synthesis of poly(spirolactic-co-lactic acid) (PSLA), a highly functional polymer with a norbornene substituting a methyl group in poly(l-lactic acid) (PLLA), we were able to covalently attach biomolecules onto the polymer backbone via thiol-ene click chemistry to impart desirable functionalities to the tubular scaffolds. Specifically, heparin was conjugated on the scaffolds in order to prevent thrombosis when implanted in situ. By controlling the amount of covalently attached heparin we were able to modulate the physical properties of the tubular scaffold, resulting in tunable wettability and degradation rate while retaining the porous and nanofibrous morphology. The scaffolds were successfully tested as rat abdominal aortic replacements. Patency and viability were confirmed through dynamic ultrasound and histological analysis of the regenerated tissue. The harvested tissue showed excellent vascular cellular infiltration, proliferation, and migration with laminar cellular arrangement. Furthermore, we achieved both complete reendothelialization of the vessel lumen and native-like media extracellular matrix. No signs of aneurysm or hyperplasia were observed after 3 months of vessel replacement. Taken together, we have developed an effective vascular graft able to generate small diameter blood vessels that can function in a rat model.
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16
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Radwan NH, Nasr M, Ishak RAH, Awad GAS. Moxifloxacin-loaded in situ synthesized Bioceramic/Poly(L-lactide-co-ε-caprolactone) composite scaffolds for treatment of osteomyelitis and orthopedic regeneration. Int J Pharm 2021; 602:120662. [PMID: 33933641 DOI: 10.1016/j.ijpharm.2021.120662] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 04/25/2021] [Accepted: 04/26/2021] [Indexed: 10/21/2022]
Abstract
High local intraosseous levels of antimicrobial agents are required for adequate long-term treatment of chronic osteomyelitis (OM). In this study, biodegradable composite scaffolds of poly-lactide-co-ε-caprolactone/calcium phosphate (CaP) were in-situ synthesized using two different polymer grades and synthesis pathways and compared to composites prepared by pre-formed (commercially available) CaP for delivery of the antibiotic moxifloxacin hydrochloride (MOX). Phase identification and characterization by Fourier transform infra-red (FTIR) spectroscopy, X-ray powder diffraction (XRPD) and scanning electron microscope (SEM) confirmed the successful formation of different CaP phases within the biodegradable polymer matrix. The selected in-situ formed CaP scaffold showed a sustained release for MOX for six weeks and adequate porosity. Cell viability study on MG-63 osteoblast-like cells revealed that the selected composite scaffold maintained the cellular proliferation and differentiation. Moreover, it was able to diminish the bacterial load, inflammation and sequestrum formation in the bones of OM-induced animals. The results of the present work deduce that the selected in-situ formed CaP composite scaffold is a propitious candidate for OM treatment, and further clinical experiments are recommended.
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Affiliation(s)
- Noha H Radwan
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Maha Nasr
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Rania A H Ishak
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt.
| | - Gehanne A S Awad
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
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17
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Wu S, Bian C, Li X, Chen M, Yang J, Jin Y, Shen Y, Cheng L. Controlled release of triamcinolone from an episcleral micro film delivery system for open-globe eye injuries and proliferative vitreoretinopathy. J Control Release 2021; 333:76-90. [PMID: 33771623 DOI: 10.1016/j.jconrel.2021.03.023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 03/05/2021] [Accepted: 03/16/2021] [Indexed: 11/16/2022]
Abstract
Open globe trauma is the major cause for single eye blindness that stem from subsequent proliferative vitreoretinopathy (PVR). Though biomaterials and tissue engineering have significantly advanced drug delivery and management of human diseases, currently there is no effective drug formulation or device to pharmacologically mitigate PVR formation after open-globe eye trauma. This highlighted the challenge we are facing to bring the technology from bench to bedside. The current study reported an engineered episcleral drug film using biodegradable material, Poly(L-lactide)-co-poly(ɛ-caprolactone), and triamcinolone acetonide (TA) as a model drug. The film can be conveniently sized into any shape to fit the configuration of the eye globe trauma and easily installed onto the ruptured sclera during primary trauma repair surgery. The film allows therapeutic TA to slow release for at least 6 months without toxicity and demonstrated a significant benefit to reduce the odds of developing severe PVR by 5.7 times when compared with a no-drug film control on a rabbit trauma PVR model. Our results suggested this micro episcleral drug film as promising drug delivery carrier for the targeted treatment of various unwanted retinal proliferation diseases.
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Affiliation(s)
- Shaoqun Wu
- School of Ophthalmology and Optometry, Wenzhou Medical University, 270 Xueyuan Road, Wenzhou, Zhejiang 325027, China
| | - Chengying Bian
- School of Ophthalmology and Optometry, Wenzhou Medical University, 270 Xueyuan Road, Wenzhou, Zhejiang 325027, China
| | - Xiaoli Li
- School of Ophthalmology and Optometry, Wenzhou Medical University, 270 Xueyuan Road, Wenzhou, Zhejiang 325027, China
| | - Miao Chen
- School of Ophthalmology and Optometry, Wenzhou Medical University, 270 Xueyuan Road, Wenzhou, Zhejiang 325027, China
| | - Jie Yang
- School of Ophthalmology and Optometry, Wenzhou Medical University, 270 Xueyuan Road, Wenzhou, Zhejiang 325027, China
| | - Yuanhui Jin
- School of Ophthalmology and Optometry, Wenzhou Medical University, 270 Xueyuan Road, Wenzhou, Zhejiang 325027, China
| | - Yu Shen
- School of Ophthalmology and Optometry, Wenzhou Medical University, 270 Xueyuan Road, Wenzhou, Zhejiang 325027, China
| | - Lingyun Cheng
- School of Ophthalmology and Optometry, Wenzhou Medical University, 270 Xueyuan Road, Wenzhou, Zhejiang 325027, China.
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18
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Liu W, Feng Z, Ou-Yang W, Pan X, Wang X, Huang P, Zhang C, Kong D, Wang W. 3D printing of implantable elastic PLCL copolymer scaffolds. SOFT MATTER 2020; 16:2141-2148. [PMID: 32016231 DOI: 10.1039/c9sm02396h] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Poly(l-lactic acid) (PLLA) scaffolds have been used in regenerative medicine, however, they commonly suffer from low flexibility, restricting their application in the repair and reconstruction of soft tissues. In this study, poly(l-lactide-co-ε-caprolactone) (PLCL) copolymers were examined to modulate the elasticity of PLLA with the random presence of CL units in PLLA. Thermodynamic analysis revealed that the introduction of PCL could significantly decrease the melting point and glass transition temperature of PLLA, benefiting the extrusion and printing of PLCL. Diverse scaffolds with designed architectures including porous cubes with or without large holes, cambered plates with holes and round tubes could be easily constructed by 3D printing. In the process of elastic deformation, the maximum elastic stress of the copolymer scaffold was obviously increased from 19.6 to 31.5 MPa when the relative content of PCL was increased to 70%, while the elongation at break was evidently increased from 388% to about 1974%. The Young's modulus of PLCL was also significantly decreased (P < 0.05) in comparison with that of PLLA. PLCL scaffolds have good platelet and endotheliocyte adhesion ability and no obvious hemolysis was observed. In vivo subcutaneous implantation of PLCL scaffolds demonstrated superior biocompatibility. Collectively, this work highlights that copolymerization of PCL segments into PLLA is an effective approach to tune the 3D printability and the stiffness and elasticity of PLLA scaffolds. PLCL scaffolds hold great promise for the regeneration of soft tissues including but not limited to cartilage, myocardium, muscle, tendon and nervous tissues.
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Affiliation(s)
- Wenshuai Liu
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China.
| | - Zujian Feng
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China. and Department of Polymer Science and Engineering, Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Wenbin Ou-Yang
- Structural Heart Disease Center, National Center for Cardiovascular Disease, China and Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China.
| | - Xiangbin Pan
- Structural Heart Disease Center, National Center for Cardiovascular Disease, China and Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China.
| | - Xiaoli Wang
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China.
| | - Pingsheng Huang
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China.
| | - Chuangnian Zhang
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China.
| | - Deling Kong
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China. and College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Weiwei Wang
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China.
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19
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Liu Y, Cao H, Ye L, Coates P, Caton-Rose F, Zhao X. Long-Chain Branched Poly(lactic acid)-b-poly(lactide-co-caprolactone): Structure, Viscoelastic Behavior, and Triple-Shape Memory Effect as Smart Bone Fixation Material. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.9b06514] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Yalong Liu
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Huijie Cao
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Lin Ye
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Phil Coates
- School of Engineering, Design and Technology, University of Bradford, Bradford BD7 1DP, U.K
| | - Fin Caton-Rose
- School of Engineering, Design and Technology, University of Bradford, Bradford BD7 1DP, U.K
| | - Xiaowen Zhao
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
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20
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Sampling of Patient Radiation Therapy Thermoplastic Immobilization Forms Reveals Several Types of Attached Bacteria. J Med Imaging Radiat Sci 2020; 51:117-127. [PMID: 31959543 DOI: 10.1016/j.jmir.2019.12.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 11/29/2019] [Accepted: 12/02/2019] [Indexed: 11/21/2022]
Abstract
BACKGROUND Thermoplastic medical devices used during patient therapy have been shown to harbor microbes, including those causing healthcare-associated infections (HAI). This issue has not been previously evaluated for immobilization forms used during radiation therapy. The present study addresses this matter by sampling immobilization forms used during patient treatment to see if any microbes could be similarly recovered. METHODS Twelve head-only in-use patient forms were sampled at 3 radiation therapy facilities. Sampled form areas included cheeks, forehead, and nose. A site survey was also conducted to determine individual form characteristics and form handling procedures. RESULTS All twelve forms demonstrated at least one type of bacteria being recovered from sampled areas, several forms with multiple types. Bacterium was not recovered from the nose area of a single form, even though bacteria were recovered from the same form's cheeks and forehead areas. Recovered bacteria included Bacillus species spp. (21), coagulase-negative staphylococci or CoNS (19), Staphylococcus aureus (2), Enterococcus species (1), alpha-hemolytic (viridians) streptococci (1), and Gram-negative rods (1). Bacillus species spp. and CoNS were recovered from 10 of 12 (∼84%) forms in at least one sampled area. In addition, a single Bacillus spp. was also recovered from a water bath used to heat forms at one treatment facility. DISCUSSION The detected presence of several bacterial types on patient forms indicates that they can attach to and surviving, for a time, on form surfaces. Two of the bacteria recovered, namely S. aureus and Enterococcus spp. are confirmed HAI pathogens. The remainder are considered as opportunistic bacterial pathogens that can cause HAIs in debilitated patients. Of special concern is the recovery of several different species of the environmental bacterium Bacillus spp. at a higher level than CoNS, a normal skin bacterium. The ability of Bacillus spp. to form spores further enhances its survival capability on form surfaces. The source of the recovered bacteria, including Bacillus spp. was not determined. CONCLUSION The presence of bacteria on stored patient form surfaces indicates that there is a real potential to transfer them to the patient during its reapplication. The actual potential for microbe transfer such as Bacillus spp. or its spores has yet to be determined. Consequently, care should be taken by radiation therapy personnel in handling forms during patient reapplication. Precautions such as donning a fresh pair of gloves and cleaning a form with an approved disinfectant can help to reduce and/or eliminate unintended microbe transfer to the patient wearing it. This procedure should also be considered for patients without apparent open or leaking wounds.
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21
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Mechanical, rheological and anaerobic biodegradation behavior of a Poly(lactic acid) blend containing a Poly(lactic acid)-co-poly(glycolic acid) copolymer. Polym Degrad Stab 2019. [DOI: 10.1016/j.polymdegradstab.2019.109018] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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22
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Influence of Solvent Selection in the Electrospraying
Process of Polycaprolactone. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9030402] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Electrosprayed polycaprolactone (PCL) microparticles are widely used in medical tissueengineering, drug control release delivery, and food packaging due to their prominent structuresand properties. In electrospraying, the selection of a suitable solvent system as the carrier of PCL isfundamental and a prerequisite for the stabilization of electrospraying, and the control ofmorphology and structure of electrosprayed particles. The latter is not only critical for diversifyingthe characteristics of electrosprayed particles and achieving improvement in their properties, butalso promotes the efficiency of the process and deepens the applications of electrosprayed particlesin various fields. In order to make it systematic and more accessible, this review mainly concludesthe effects of different solution properties on the operating parameters in electrospraying on theformation of Taylor cone and the final structure as well as the morphology. Meanwhile,correlations between operating parameters and electrospraying stages are summarized as well.Finally, this review provides detailed guidance on the selection of a suitable solvent systemregarding the desired morphology, structure, and applications of PCL particles.
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23
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Siqueira LD, Passador FR, Lobo AO, Trichês EDS. Morphological, thermal and bioactivity evaluation of electrospun PCL/β-TCP fibers for tissue regeneration. POLIMEROS 2019. [DOI: 10.1590/0104-1428.02118] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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24
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Chemical stability, mass loss and hydrolysis mechanism of sterile and non-sterile lipid-core nanocapsules: The influence of the molar mass of the polymer wall. REACT FUNCT POLYM 2018. [DOI: 10.1016/j.reactfunctpolym.2018.09.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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25
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Liu X, Laurent C, Du Q, Targa L, Cauchois G, Chen Y, Wang X, de Isla N. Mesenchymal stem cell interacted with PLCL braided scaffold coated with poly-l-lysine/hyaluronic acid for ligament tissue engineering. J Biomed Mater Res A 2018; 106:3042-3052. [PMID: 30194699 DOI: 10.1002/jbm.a.36494] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Revised: 06/19/2018] [Accepted: 06/22/2018] [Indexed: 01/07/2023]
Abstract
The challenge of finding an adapted scaffold for ligament tissue engineering remains unsolved after years of researches. A technology to fabricate a multilayer braided scaffold with flexible and elastic poly (l-lactide-co-caprolactone) (PLCL 85/15) has been recently pioneered by our team. In this study, polyelectrolyte multilayer films (PEM) with poly-l-lysine (PLL)/ hyaluronic acid (HA) were deposited on this scaffold. After PEM modification, polygonal (PLL) and particle-like (HA) structures were present on the braided scaffold with no significant variation of fibers Young's modulus. Wharton's jelly mesenchymal stem cells (WJ-MSC) and bone marrow mesenchymal stem cells (BM-MSC) showed good metabolic activity on scaffolds. They presented a spindled shape along the fiber longitudinal direction, and crossed the fibers to form cell bridges. Collagen type I, collagen type III, and tenascin-C secreted by MSCs were detected on day 14. Moreover, one-layer modified scaffold presented increased chemotaxis. As a conclusion, our results indicate that this braided PLCL scaffold with one-layer PEM modification shows inspiring potential with satisfying mechanical properties and biocompatibility. It opens new perspectives to incorporate growth factors within PEM-modified braided PLCL scaffold for ligament tissue engineering and to recruit endogenous cells after implantation. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 106A: 3042-3052, 2018.
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Affiliation(s)
- Xing Liu
- CNRS UMR 7365 -Université de Lorraine, Ingénierie Moléculaire et Physiopathologie Articulaire (IMoPA), Vandœuvre-lès-Nancy, France
| | - Cédric Laurent
- CNRS UMR 7239 LEM3 - Université de Lorraine, Vandoeuvre-lès-Nancy, France
| | - Qiaoyue Du
- Department of Biomedical Engineering, School of Basic Medical Science, Wuhan University, Wuhan, China
| | - Laurie Targa
- CNRS UMR 7365 -Université de Lorraine, Ingénierie Moléculaire et Physiopathologie Articulaire (IMoPA), Vandœuvre-lès-Nancy, France
| | - Ghislaine Cauchois
- CNRS UMR 7365 -Université de Lorraine, Ingénierie Moléculaire et Physiopathologie Articulaire (IMoPA), Vandœuvre-lès-Nancy, France
| | - Yun Chen
- Department of Biomedical Engineering, School of Basic Medical Science, Wuhan University, Wuhan, China
| | - Xiong Wang
- CNRS UMR 7365 -Université de Lorraine, Ingénierie Moléculaire et Physiopathologie Articulaire (IMoPA), Vandœuvre-lès-Nancy, France
| | - Natalia de Isla
- CNRS UMR 7365 -Université de Lorraine, Ingénierie Moléculaire et Physiopathologie Articulaire (IMoPA), Vandœuvre-lès-Nancy, France
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26
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Bee SL, Hamid ZAA, Mariatti M, Yahaya BH, Lim K, Bee ST, Sin LT. Approaches to Improve Therapeutic Efficacy of Biodegradable PLA/PLGA Microspheres: A Review. POLYM REV 2018. [DOI: 10.1080/15583724.2018.1437547] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Soo-Ling Bee
- School of Materials and Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal, Penang, Malaysia
| | - Z. A. Abdul Hamid
- School of Materials and Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal, Penang, Malaysia
| | - M. Mariatti
- School of Materials and Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal, Penang, Malaysia
| | - B. H. Yahaya
- Regenerative Medicine Cluster, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Penang, Malaysia
| | - Keemi Lim
- School of Materials and Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal, Penang, Malaysia
| | - Soo-Tueen Bee
- Department of Chemical Engineering, Lee Kong Chian Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Jalan Sungai Long, Bandar Sungai Long, Cheras, Kajang, Selangor, Malaysia
| | - Lee Tin Sin
- Department of Chemical Engineering, Lee Kong Chian Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Jalan Sungai Long, Bandar Sungai Long, Cheras, Kajang, Selangor, Malaysia
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27
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Tainio J, Paakinaho K, Ahola N, Hannula M, Hyttinen J, Kellomäki M, Massera J. In Vitro Degradation of Borosilicate Bioactive Glass and Poly(l-lactide-co-ε-caprolactone) Composite Scaffolds. MATERIALS (BASEL, SWITZERLAND) 2017; 10:E1274. [PMID: 29113141 PMCID: PMC5706221 DOI: 10.3390/ma10111274] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Revised: 10/30/2017] [Accepted: 11/01/2017] [Indexed: 12/03/2022]
Abstract
Composite scaffolds were obtained by mixing various amounts (10, 30 and 50 weight % [wt %]) of borosilicate bioactive glass and poly(l-lactide-co-ε-caprolactone) (PLCL) copolymer. The composites were foamed using supercritical CO₂. An increase in the glass content led to a decrease in the pore size and density. In vitro dissolution/reaction test was performed in simulated body fluid. As a function of immersion time, the solution pH increased due to the glass dissolution. This was further supported by the increasing amount of Ca in the immersing solution with increasing immersion time and glass content. Furthermore, the change in scaffold mass was significantly greater with increasing the glass content in the scaffold. However, only the scaffolds containing 30 and 50 wt % of glasses exhibited significant hydroxyapatite (HA) formation at 72 h of immersion. The compression strength of the samples was also measured. The Young's modulus was similar for the 10 and 30 wt % glass-containing scaffolds whereas it increased to 90 MPa for the 50 wt % glass containing scaffold. Upon immersion up to 72 h, the Young's modulus increased and then remained constant for longer immersion times. The scaffold prepared could have great potential for bone and cartilage regeneration.
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Affiliation(s)
- Jenna Tainio
- BioMediTech Institute and Faculty of Biomedical Sciences and Engineering, Korkeakoulunkatu 3, 33720 Tampere, Finland.
| | - Kaarlo Paakinaho
- BioMediTech Institute and Faculty of Biomedical Sciences and Engineering, Korkeakoulunkatu 3, 33720 Tampere, Finland.
| | - Niina Ahola
- BioMediTech Institute and Faculty of Biomedical Sciences and Engineering, Korkeakoulunkatu 3, 33720 Tampere, Finland.
| | - Markus Hannula
- BioMediTech Institute and Faculty of Biomedical Sciences and Engineering, Korkeakoulunkatu 3, 33720 Tampere, Finland.
| | - Jari Hyttinen
- BioMediTech Institute and Faculty of Biomedical Sciences and Engineering, Korkeakoulunkatu 3, 33720 Tampere, Finland.
| | - Minna Kellomäki
- BioMediTech Institute and Faculty of Biomedical Sciences and Engineering, Korkeakoulunkatu 3, 33720 Tampere, Finland.
| | - Jonathan Massera
- BioMediTech Institute and Faculty of Biomedical Sciences and Engineering, Korkeakoulunkatu 3, 33720 Tampere, Finland.
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28
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Gu SY, Chang K, Jin SP. A dual-induced self-expandable stent based on biodegradable shape memory polyurethane nanocomposites (PCLAU/Fe3
O4
) triggered around body temperature. J Appl Polym Sci 2017. [DOI: 10.1002/app.45686] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Shu-Ying Gu
- Department of Polymer Materials; School of Materials Science and Engineering, Tongji University; Shanghai 201804 People's Republic of China
- Key Laboratory of Advanced Civil Engineering Materials; Ministry of Education, Tongji University; Shanghai 201804 People's Republic of China
| | - Kun Chang
- Department of Polymer Materials; School of Materials Science and Engineering, Tongji University; Shanghai 201804 People's Republic of China
| | - Sheng-Peng Jin
- Department of Polymer Materials; School of Materials Science and Engineering, Tongji University; Shanghai 201804 People's Republic of China
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29
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Mechanical properties and state of miscibility in poly(racD,L-lactide-co-glycolide)/(L-lactide-co-ε-caprolactone) blends. J Mech Behav Biomed Mater 2017; 71:372-382. [PMID: 28411547 DOI: 10.1016/j.jmbbm.2017.04.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Revised: 04/03/2017] [Accepted: 04/04/2017] [Indexed: 11/20/2022]
Abstract
Polymers based on lactic acid (PLA) are a very promising category of biopolymers. As they are multi-stimuli responsive, can, in many ways, positively interact with the host, stimulating the innate reparative machinery of the human body. Since biopolymers for medical applications are subject to restrictive regulations, blending stands out as an effective method for obtaining tailored properties within a reduced time to market if compared to synthesis. Hence, in this study a set of PDLGA/PLCL blends was obtained by means of thermoplastic techniques and then further characterized. Evaluation techniques include GPC, NMR, DSC, tensile testing and SEM. Although mixtures proved to be immiscible, a full range of tensile properties was achieved. Observation of the surfaces of fracture provided visual evidence of the deformation mechanisms that occurred during the tensile tests which in the end led to failure. Interpretation of the thermal events based on molecular characterization parameters revealed phase separation, crystallization and plasticisation mechanisms that are relevant to any potential applications based on mechanical performance and shape memory behaviour.
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30
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31
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Basu A, Haim-Zada M, Domb AJ. Biodegradable inflatable balloons for tissue separation. Biomaterials 2016; 105:109-116. [DOI: 10.1016/j.biomaterials.2016.08.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Revised: 08/03/2016] [Accepted: 08/03/2016] [Indexed: 11/27/2022]
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32
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Kim BS, Jang J, Chae S, Gao G, Kong JS, Ahn M, Cho DW. Three-dimensional bioprinting of cell-laden constructs with polycaprolactone protective layers for using various thermoplastic polymers. Biofabrication 2016; 8:035013. [DOI: 10.1088/1758-5090/8/3/035013] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Kaffashi B, Davoodi S, Oliaei E. Poly(ε-caprolactone)/triclosan loaded polylactic acid nanoparticles composite: A long-term antibacterial bionanocomposite with sustained release. Int J Pharm 2016; 508:10-21. [PMID: 27155590 DOI: 10.1016/j.ijpharm.2016.05.009] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Revised: 05/01/2016] [Accepted: 05/02/2016] [Indexed: 10/21/2022]
Abstract
In this study, the antibacterial bionanocomposites of poly(ε-caprolactone) (PCL) with different concentrations of triclosan (TC) loaded polylactic acid (PLA) nanoparticles (30wt% triclosan) (LATC30) were fabricated via a melt mixing process in order to lower the burst release of PCL and to extend the antibacterial activity during its performance. Due to the PLA's higher glass transition temperature (Tg) and less flexibility compared with PCL; the PLA nanoparticles efficiently trapped the TC particles, reduced the burst release of TC from the bionanocomposites; and extended the antibacterial property of the samples up to two years. The melt mixing temperature was adjusted to a temperature lower than the melting point of LATC30 nanoparticles; therefore, these nanoparticles were dispersed in the PCL matrix without any chemical reaction and/or drug extraction. The sustained release behavior of TC from PCL remained unchanged since no significant changes occurred in the samples' crystallinity compared with that in the neat PCL. The elastic moduli of samples were enhanced once LATC30 is included. This is necessary since the elastic modulus is decreased with water absorption. The rheological behaviors of samples showed appropriate properties for melt electro-spinning. A stable process was established as the relaxation time of the bionanocomposites was increased. The hydrophilic properties of samples were increased with increasing LATC30. The proliferation rate of the fibroblast (L929) cells was enhanced as the content of nanoparticles was increased. A system similar to this could be implemented to prepare long-term antibacterial and drug delivery systems based on PCL and various low molecular weight drugs. The prepared bionanocomposites are considered as candidates for the soft connective tissue engineering and long-term drug delivery.
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Affiliation(s)
- Babak Kaffashi
- School of Chemical Engineering, College of Engineering, University of Tehran, P.O. Box 11365-4563, Tehran, Iran.
| | - Saeed Davoodi
- School of Chemical Engineering, College of Engineering, University of Tehran, P.O. Box 11365-4563, Tehran, Iran
| | - Erfan Oliaei
- School of Chemical Engineering, College of Engineering, University of Tehran, P.O. Box 11365-4563, Tehran, Iran
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34
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Tan YJ, Yeong WY, Tan X, An J, Chian KS, Leong KF. Characterization, mechanical behavior and in vitro evaluation of a melt-drawn scaffold for esophageal tissue engineering. J Mech Behav Biomed Mater 2016; 57:246-59. [DOI: 10.1016/j.jmbbm.2015.12.015] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2015] [Revised: 12/10/2015] [Accepted: 12/14/2015] [Indexed: 12/28/2022]
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35
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Siqueira L, Passador F, Costa M, Lobo A, Sousa E. Influence of the addition of β-TCP on the morphology, thermal properties and cell viability of poly (lactic acid) fibers obtained by electrospinning. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 52:135-43. [DOI: 10.1016/j.msec.2015.03.055] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Revised: 02/20/2015] [Accepted: 03/24/2015] [Indexed: 12/16/2022]
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36
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Taskin MB, Xu R, Zhao H, Wang X, Dong M, Besenbacher F, Chen M. Poly(norepinephrine) as a functional bio-interface for neuronal differentiation on electrospun fibers. Phys Chem Chem Phys 2015; 17:9446-53. [DOI: 10.1039/c5cp00413f] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A mussel inspired polynorepinephrine (pNE) coating serves as a unique bio-interface integrating multi-functions facilitating PC12 neuronal differentiation.
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Affiliation(s)
- Mehmet Berat Taskin
- Interdisciplinary Nanoscience Center (iNANO)
- Aarhus University
- DK-8000 Aarhus C
- Denmark
| | - Ruodan Xu
- Interdisciplinary Nanoscience Center (iNANO)
- Aarhus University
- DK-8000 Aarhus C
- Denmark
| | - Huiling Zhao
- Interdisciplinary Nanoscience Center (iNANO)
- Aarhus University
- DK-8000 Aarhus C
- Denmark
| | - Xueqin Wang
- Interdisciplinary Nanoscience Center (iNANO)
- Aarhus University
- DK-8000 Aarhus C
- Denmark
| | - Mingdong Dong
- Interdisciplinary Nanoscience Center (iNANO)
- Aarhus University
- DK-8000 Aarhus C
- Denmark
| | - Flemming Besenbacher
- Interdisciplinary Nanoscience Center (iNANO)
- Aarhus University
- DK-8000 Aarhus C
- Denmark
| | - Menglin Chen
- Interdisciplinary Nanoscience Center (iNANO)
- Aarhus University
- DK-8000 Aarhus C
- Denmark
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37
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Use of electrohydrodynamic processing to develop nanostructured materials for the preservation of the cold chain. INNOV FOOD SCI EMERG 2014. [DOI: 10.1016/j.ifset.2014.10.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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38
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Torabinejad B, Mohammadi-Rovshandeh J, Davachi SM, Zamanian A. Synthesis and characterization of nanocomposite scaffolds based on triblock copolymer of L-lactide, ε-caprolactone and nano-hydroxyapatite for bone tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 42:199-210. [PMID: 25063111 DOI: 10.1016/j.msec.2014.05.003] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Revised: 03/16/2014] [Accepted: 05/03/2014] [Indexed: 01/17/2023]
Abstract
The employment of biodegradable polymer scaffolds is one of the main approaches for achieving a tissue engineered construct to reproduce bone tissues, which provide a three dimensional template to regenerate desirable tissues for different applications. The main goal of this study is to design a novel triblock scaffold reinforced with nano-hydroxyapatite (nHA) for hard tissue engineering using gas foaming/salt leaching method with minimum solvent usage. With this end in view, the biodegradable triblock copolymers of l-lactide and ε-caprolactone with different mol% were synthesized by ring-opening polymerization method in the presence of Sn(Oct)2 catalyst as initiator and ethylene glycol as co-initiator. The chemical compositions of biodegradable copolymers were characterized by means of FTIR and NMR. The thermal and crystallization behaviors of copolymers were characterized using TGA and DSC thermograms. Moreover, nano-hydroxyapatite was synthesized by the chemical precipitation process and was thoroughly characterized by FTIR, XRD and TEM. Additionally, the nanocomposites with different contents of nHA were prepared by mixing triblock copolymer with nHA. Mechanical properties of the prepared nanocomposites were evaluated by stress-strain measurements. It was found that the nanocomposite with 30% of nHA showed the optimum result. Therefore, nanocomposite scaffolds with 30% nHA were fabricated by gas foaming/salt leaching method and SEM images were used to observe the microstructure and morphology of nanocomposites and nanocomposite scaffolds before and after cell culture. The in-vitro and cell culture tests were also carried out to further evaluate the biological properties. The results revealed that the porous scaffolds were biocompatible to the osteoblast cells because the cells spread and grew well. The resultant nanocomposites could be considered as good candidates for use in bone tissue engineering.
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Affiliation(s)
- Bahman Torabinejad
- Nanotechnology and Advance Materials Department, Materials and Energy Research Center, P.O. Box: 31787-316, Karaj, Alborz, Iran; School of Polymer Chemistry, College of Science, University of Tehran, P.O. Box 14155-6455, Tehran, Iran
| | - Jamshid Mohammadi-Rovshandeh
- Caspian Faculty of Engineering, College of Engineering, University of Tehran, Rezvanshar, P.O. Box 43841-119, Guilan, Iran.
| | - Seyed Mohammad Davachi
- School of Chemical Engineering, College of Engineering, University of Tehran, P.O. Box 11365-4563, Tehran, Iran
| | - Ali Zamanian
- Nanotechnology and Advance Materials Department, Materials and Energy Research Center, P.O. Box: 31787-316, Karaj, Alborz, Iran
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39
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Wan T, Yang G, Du T, Zhang J. Tri-(butanediol-monobutyrate) citrate plasticizing poly(lactic acid): Synthesis, crystallization, thermal, and mechanical properties. POLYM ENG SCI 2014. [DOI: 10.1002/pen.23886] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Tong Wan
- College of Material Science and Chemical Engineering; Tianjin University of Science and Technology, TEDA; Tianjin 300457 People's Republic of China
| | - Guangrui Yang
- College of Material Science and Chemical Engineering; Tianjin University of Science and Technology, TEDA; Tianjin 300457 People's Republic of China
| | - Tao Du
- College of Material Science and Chemical Engineering; Tianjin University of Science and Technology, TEDA; Tianjin 300457 People's Republic of China
| | - Jie Zhang
- College of Material Science and Chemical Engineering; Tianjin University of Science and Technology, TEDA; Tianjin 300457 People's Republic of China
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40
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Larrañaga A, Guay-Bégin AA, Chevallier P, Sabbatier G, Fernández J, Laroche G, Sarasua JR. Grafting of a model protein on lactide and caprolactone based biodegradable films for biomedical applications. BIOMATTER 2014; 4:e27979. [PMID: 24509417 PMCID: PMC4014455 DOI: 10.4161/biom.27979] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Thermoplastic biodegradable polymers displaying elastomeric behavior and mechanical consistency are greatly appreciated for the regeneration of soft tissues and for various medical devices. However, while the selection of a suitable base material is determined by mechanical and biodegradation considerations, it is the surface properties of the biomaterial that are responsible for the biological response. In order to improve the interaction with cells and modulate their behavior, biologically active molecules can be incorporated onto the surface of the material. With this aim, the surface of a lactide and caprolactone based biodegradable elastomeric terpolymer was modified in two stages. First, the biodegradable polymer surface was aminated by atmospheric pressure plasma treatment and second a crosslinker was grafted in order to covalently bind the biomolecule. In this study, albumin was used as a model protein. According to X-ray photoelectron spectroscopy (XPS) and atomic force microscopy (AFM), albumin was efficiently immobilized on the surface of the terpolymer, the degree of albumin surface coverage (ΓBSA) reached ~35%. Moreover, gel permeation chromatography (GPC) studies showed that the hydrolytic degradation kinetic of the synthesized polymer was slightly delayed when albumin was grafted. However, the degradation process in the bulk of the material was unaffected, as demonstrated by Fourier transform infrared (FTIR) analyses. Furthermore, XPS analyses showed that the protein was still present on the surface after 28 days of degradation, meaning that the surface modification was stable, and that there had been enough time for the biological environment to interact with the modified material.
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Affiliation(s)
- Aitor Larrañaga
- Department of Mining-Metallurgy Engineering and Materials Science; POLYMAT; University of the Basque Country (UPV/EHU); School of Engineering; Bilbao, Spain; Laboratoire d'Ingénierie de Surface (LIS); Centre de recherche du CHU de Québec; Hôpital Saint-François d'Assise; Québec, QC Canada
| | - Andrée-Anne Guay-Bégin
- Department of Mining-Metallurgy Engineering and Materials Science; POLYMAT; University of the Basque Country (UPV/EHU); School of Engineering; Bilbao, Spain; Laboratoire d'Ingénierie de Surface (LIS); Centre de recherche du CHU de Québec; Hôpital Saint-François d'Assise; Québec, QC Canada
| | - Pascale Chevallier
- Laboratoire d'Ingénierie de Surface (LIS); Centre de recherche du CHU de Québec; Hôpital Saint-François d'Assise; Québec, QC Canada; Département de génie des mines, de la métallurgie et des matériaux; Centre de Recherche sur les Matériaux Avancés (CERMA); Université Laval; Québec, QC Canada
| | - Gad Sabbatier
- Laboratoire d'Ingénierie de Surface (LIS); Centre de recherche du CHU de Québec; Hôpital Saint-François d'Assise; Québec, QC Canada; Département de génie des mines, de la métallurgie et des matériaux; Centre de Recherche sur les Matériaux Avancés (CERMA); Université Laval; Québec, QC Canada
| | - Jorge Fernández
- Department of Mining-Metallurgy Engineering and Materials Science; POLYMAT; University of the Basque Country (UPV/EHU); School of Engineering; Bilbao, Spain
| | - Gaétan Laroche
- Laboratoire d'Ingénierie de Surface (LIS); Centre de recherche du CHU de Québec; Hôpital Saint-François d'Assise; Québec, QC Canada; Département de génie des mines, de la métallurgie et des matériaux; Centre de Recherche sur les Matériaux Avancés (CERMA); Université Laval; Québec, QC Canada
| | - Jose-Ramon Sarasua
- Department of Mining-Metallurgy Engineering and Materials Science; POLYMAT; University of the Basque Country (UPV/EHU); School of Engineering; Bilbao, Spain
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41
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Fernández J, Larrañaga A, Etxeberria A, Wang W, Sarasua JR. A new generation of poly(lactide/ε-caprolactone) polymeric biomaterials for application in the medical field. J Biomed Mater Res A 2013; 102:3573-84. [PMID: 24243562 DOI: 10.1002/jbm.a.35036] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Revised: 11/05/2013] [Accepted: 11/06/2013] [Indexed: 11/08/2022]
Abstract
Thermoplastic biodegradable polymers displaying an elastomeric behavior are greatly valued for the regeneration of soft tissues and for various medical devices. In this work, terpolymers composed of ε-caprolactone (CL), D-lactide (D-LA), and L-lactide (L-LA) were synthesized. These poly(lactide-ε-caprolactone) (PLCLs) presented an elevated randomness character (R∼1), glass transition temperatures (Tg ) higher than 20°C and adjusted L-LA content. In this way, the L-LA average sequence length (/L-LA ) was reduced to below 3.62 and showed little or no crystallization capability during in vitro degradation. As a result, the obtained materials underwent homogenous degradation exhibiting KMw ranging from 0.030 to 0.066 d(-1) and without generation of crystalline remnants in advanced stages of degradation. Mechanical performance was maintained over a period of 21 days for a rac-lactide-ε-caprolactone copolymer composed of ∼85% D,L-LA and ∼15% CL and also for a terpolymer composed of ∼72% L-LA, ∼12% D-LA and ∼16% CL. Terpolymers having L-LA content from ∼60 to 70% and CL content from ∼10 to 27% were also studied. In view of the results, those materials having CL and D-LA units disrupting the microstructural arrangement of the L-LA crystallizable chains, an L-LA content <72% and a random distribution of sequences, may display proper and tunable mechanical behavior and degradation performance for a large number of medical applications. Those with a CL content from 15 to 30% will fulfill the demand of elastomeric materials of Tg higher than 20°C whereas those with a CL content from 5 to 15% might be applied as ductile stiff materials.
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Affiliation(s)
- J Fernández
- Department of Mining-Metallurgy Engineering and Materials Science, POLYMAT, University of the Basque Country (UPV/EHU), School of Engineering, Alameda de Urquijo s/n., 48013, Bilbao, Spain
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42
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Malinová L, Brožek J. Ethyl magnesium bromide as an efficient anionic initiator for controlled polymerization of ε-caprolactone. Polym Bull (Berl) 2013. [DOI: 10.1007/s00289-013-1048-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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43
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Perez-Masia R, Lopez-Rubio A, Fabra MJ, Lagaron JM. Biodegradable polyester-based heat management materials of interest in refrigeration and smart packaging coatings. J Appl Polym Sci 2013. [DOI: 10.1002/app.39555] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Rocio Perez-Masia
- Novel Materials and Nanotechnology Group; IATA-CSIC, Avda; Agustin Escardino 7; 46980; Paterna; Valencia; Spain
| | - Amparo Lopez-Rubio
- Novel Materials and Nanotechnology Group; IATA-CSIC, Avda; Agustin Escardino 7; 46980; Paterna; Valencia; Spain
| | - Maria Jose Fabra
- Novel Materials and Nanotechnology Group; IATA-CSIC, Avda; Agustin Escardino 7; 46980; Paterna; Valencia; Spain
| | - Jose Maria Lagaron
- Novel Materials and Nanotechnology Group; IATA-CSIC, Avda; Agustin Escardino 7; 46980; Paterna; Valencia; Spain
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44
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Kang MK, Jung Y, Kim SH. Biodegradable stereocomplex polylactide having flexible ɛ-caprolactone unit. Macromol Res 2013. [DOI: 10.1007/s13233-013-1120-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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45
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Liao GY, Jiang S, Xia H, Jiang K. Preparation and Characterization of Aligned PLLA/PCL/HA Composite Fibrous Membranes. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2012. [DOI: 10.1080/10601325.2012.722855] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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46
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Synthesis and degradation behavior of miktoarm poly(ɛ-caprolactone)2-b-poly(L-lactone)2 microspheres. Polym J 2012. [DOI: 10.1038/pj.2012.166] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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47
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LeBlon CE, Pai R, Fodor CR, Golding AS, Coulter JP, Jedlicka SS. In vitrocomparative biodegradation analysis of salt-leached porous polymer scaffolds. J Appl Polym Sci 2012. [DOI: 10.1002/app.38321] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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48
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Sartoneva R, Haaparanta AM, Lahdes-Vasama T, Mannerström B, Kellomäki M, Salomäki M, Sándor G, Seppänen R, Miettinen S, Haimi S. Characterizing and optimizing poly-L-lactide-co-ε-caprolactone membranes for urothelial tissue engineering. J R Soc Interface 2012; 9:3444-54. [PMID: 22896571 DOI: 10.1098/rsif.2012.0458] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Different synthetic biomaterials such as polylactide (PLA), polycaprolactone and poly-l-lactide-co-ε-caprolactone (PLCL) have been studied for urothelial tissue engineering, with favourable results. The aim of this research was to further optimize the growth surface for human urothelial cells (hUCs) by comparing different PLCL-based membranes: smooth (s) and textured (t) PLCL and knitted PLA mesh with compression-moulded PLCL (cPLCL). The effects of topographical texturing on urothelial cell response and mechanical properties under hydrolysis were studied. The main finding was that both sPLCL and tPLCL supported hUC growth significantly better than cPLCL. Interestingly, tPLCL gave no significant advantage to hUC attachment or proliferation compared with sPLCL. However, during the 14 day assessment period, the majority of cells were viable and maintained phenotype on all the membranes studied. The material characterization exhibited potential mechanical characteristics of sPLCL and tPLCL for urothelial applications. Furthermore, the highest elongation of tPLCL supports the use of this kind of texturing. In conclusion, in light of our cell culture results and mechanical characterization, both sPLCL and tPLCL should be further studied for urothelial tissue engineering.
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Affiliation(s)
- Reetta Sartoneva
- Institute of Biomedical Technology, University of Tampere, Tampere, Finland.
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49
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Jo SY, Park JS, Gwon HJ, Shin YM, Khil MS, Nho YC, Lim YM. Degradation behavior of poly (l-lactide-co-glycolide) films through gamma-ray irradiation. Radiat Phys Chem Oxf Engl 1993 2012. [DOI: 10.1016/j.radphyschem.2012.03.013] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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50
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Liao GY, Peng XI, Jiang S. Electrospun Aligned Poly(L-lactide)/Poly(ϵ-caprolactone) /Poly(ethylene glycol) Blend Fibrous Membranes. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2012. [DOI: 10.1080/10601325.2012.676884] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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