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Zhao L, Chen S, Xie C, Liang Q, Xu D, Chen W, Xiao X. The fabrication of multifunctional sodium alginate scaffold incorporating ibuprofen-loaded modified PLLA microspheres based on cryogenic 3D printing. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2022; 33:1269-1288. [PMID: 35235492 DOI: 10.1080/09205063.2022.2049059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Revised: 02/27/2022] [Accepted: 03/01/2022] [Indexed: 06/14/2023]
Abstract
A strategy to develop a multifunctional sodium alginate personalized scaffold with enhanced mechanical stability, osteogenesis activity and excellent anti-inflammatory activity by cryogenic 3 D printing combined with subsequent crosslinking with Sr2+ is proposed in this study. The ink for 3 D printing was prepared by dispersing modified PLLA droplets containing ibuprofen into sodium alginate aqueous solution using lecithin as stabilizer. The results showed that the drug-loaded microspheres formed from the low-temperature solidifying of the modified PLLA droplets were homogeneously dispersed in sodium alginate substrate, and the scaffold displayed a sustained drug release performance toward ibuprofen which endowed the scaffold with persistent anti-inflammatory effects. In vitro cell culture indicated that the lecithin not only acted as the stabilizer, but also stimulated the proliferation and mineralization of osteoblastic cells on the scaffold. Sr2+-crosslinking improved the mechanical properties and osteogenic activity of the scaffold.
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Affiliation(s)
- Lihua Zhao
- Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, College of Chemistry and Material Science, Fujian Normal University, Fuzhou, Fujian, China
| | - Shunyu Chen
- Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, College of Chemistry and Material Science, Fujian Normal University, Fuzhou, Fujian, China
| | - Chunling Xie
- Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, College of Chemistry and Material Science, Fujian Normal University, Fuzhou, Fujian, China
| | - Qingshuang Liang
- Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, College of Chemistry and Material Science, Fujian Normal University, Fuzhou, Fujian, China
| | - Dian Xu
- Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, College of Chemistry and Material Science, Fujian Normal University, Fuzhou, Fujian, China
| | - Weixin Chen
- Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, College of Chemistry and Material Science, Fujian Normal University, Fuzhou, Fujian, China
| | - Xiufeng Xiao
- Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, College of Chemistry and Material Science, Fujian Normal University, Fuzhou, Fujian, China
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Liu W, Jiao T, Su Y, Wei R, Wang Z, Liu J, Fu N, Sui L. Electrospun porous poly(3-hydroxybutyrate- co-4-hydroxybutyrate)/lecithin scaffold for bone tissue engineering. RSC Adv 2022; 12:11913-11922. [PMID: 35481079 PMCID: PMC9016801 DOI: 10.1039/d2ra01398c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 04/08/2022] [Indexed: 11/23/2022] Open
Abstract
Bone tissue engineering has emerged as a promising restorative strategy for bone reconstruction and bone defect repair. It is challenging to establish an appropriate scaffold with an excellent porous microstructure for bone defects and thereby promote bone repair. In this study, electrospinning as a simple and efficient technology was employed to fabricate a porous poly(3-hydroxybutyrate-co-4-hydroxybutyrate) (P34HB) scaffold coated with lecithin. The morphology, phase composition, and physical properties of the electrospun P34HB/lec scaffold were characterized. Meanwhile, cellular behaviors of bone marrow mesenchymal stem cells (BMSCs), including proliferation, adhesion, migration, osteogenic differentiation, and related gene expression, were also investigated. Finally, a rat subcutaneous implant model and a calvarial defect model were used to evaluated the biocompatibility and effect of these scaffolds on bone repair, respectively. The in vitro results demonstrated that these electrospun fibers were interwoven with each other to form the porous P34HB/lec scaffold and the addition of lecithin improved the hydrophilicity of the pure P34HB scaffold, enhanced the efficiency of cell migration, and decreased inflammatory response. Furthermore, the in vivo results showed that P34HB/lec scaffold had excellent biocompatibility, improved the vascularization, and promoted the bone regeneration. All these results indicated that nanofibers of P34HB scaffolds in combination with the lecithin could exert a synergistic effect on promoting osteogenesis and regeneration of bone defects; thus, the P34HB scaffold with lecithin showed great application potential for bone tissue engineering.
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Affiliation(s)
- Wei Liu
- Department of Prosthodontics, School & Hospital of Stomatology, Tianjin Medical University Tianjin 30070 China
| | - Tiejun Jiao
- Department of Implant, School & Hospital of Stomatology, Tianjin Medical University Tianjin 30070 China
| | - Yuran Su
- Department of Prosthodontics, School & Hospital of Stomatology, Tianjin Medical University Tianjin 30070 China
| | - Ran Wei
- Department of Prosthodontics, School & Hospital of Stomatology, Tianjin Medical University Tianjin 30070 China
| | - Zheng Wang
- Department of Prosthodontics, School & Hospital of Stomatology, Tianjin Medical University Tianjin 30070 China
| | - Jiacheng Liu
- Department of Prosthodontics, School & Hospital of Stomatology, Tianjin Medical University Tianjin 30070 China
| | - Na Fu
- Department of Implant, School & Hospital of Stomatology, Tianjin Medical University Tianjin 30070 China
| | - Lei Sui
- Department of Prosthodontics, School & Hospital of Stomatology, Tianjin Medical University Tianjin 30070 China
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Schiros TN, Antrobus R, Farías D, Chiu YT, Joseph CT, Esdaille S, Sanchirico GK, Miquelon G, An D, Russell ST, Chitu AM, Goetz S, Verploegh Chassé AM, Nuckolls C, Kumar SK, Lu HH. Microbial nanocellulose biotextiles for a circular materials economy. ENVIRONMENTAL SCIENCE: ADVANCES 2022; 1:276-284. [PMID: 35979328 PMCID: PMC9337796 DOI: 10.1039/d2va00050d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 05/18/2022] [Indexed: 11/21/2022]
Abstract
The synthesis and bottom-up assembly of nanocellulose by microbes offers unique advantages to tune and meet key design criteria—rapid renewability, low toxicity, scalability, performance, and degradability—for multi-functional, circular economy textiles. However, development of green processing methods that meet these criteria remains a major research challenge. Here, we harness microbial biofabrication of nanocellulose and draw inspiration from ancient textile techniques to engineer sustainable biotextiles with a circular life cycle. The unique molecular self-organization of microbial nanocellulose (MC) combined with bio-phosphorylation with a lecithin treatment yields a compostable material with superior mechanical and flame-retardant properties. Specifically, treatment of MC with a lecithin-phosphocholine emulsion makes sites available to modulate cellulose cross-linking through hydroxyl, phosphate and methylene groups, increasing the interaction between cellulose chains. The resultant bioleather exhibits enhanced tensile strength and high ductility. Bio-phosphorylation with lecithin also redirects the combustion pathway from levoglucosan production towards the formation of foaming char as an insulating oxygen barrier, for outstanding flame retardance. Controlled color modulation is demonstrated with natural dyes. Life cycle impact assessment reveals that MC bioleather has up to an order of magnitude lower carbon footprint than conventional textiles, and a thousandfold reduction in the carcinogenic impact of leather production. Eliminating the use of hazardous substances, these high performance materials disrupt linear production models and strategically eliminate its toxicity and negative climate impacts, with widespread application in fashion, interiors and construction. Importantly, the biotextile approach developed in this study demonstrates the potential of biofabrication coupled with green chemistry for a circular materials economy. Harnessing microbial biofabrication coupled to a protocol inspired by indigenous textile processes, we engineer high-performance biotextiles with a sustainable circular life cycle, including the plant and mineral dyed bioleather sneakers shown.![]()
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Affiliation(s)
- Theanne N. Schiros
- Department of Science and Mathematics, Fashion Institute of Technology, New York, NY 10001, USA
- Materials Research Science and Engineering Center, Columbia University, New York, NY 10027, USA
| | - Romare Antrobus
- Materials Research Science and Engineering Center, Columbia University, New York, NY 10027, USA
- Department of Biomedical Engineering, Columbia University, New York, NY 10027, USA
| | - Delfina Farías
- Department of Science and Mathematics, Fashion Institute of Technology, New York, NY 10001, USA
| | - Yueh-Ting Chiu
- Department of Biomedical Engineering, Columbia University, New York, NY 10027, USA
| | - Christian Tay Joseph
- Materials Research Science and Engineering Center, Columbia University, New York, NY 10027, USA
| | - Shanece Esdaille
- Materials Research Science and Engineering Center, Columbia University, New York, NY 10027, USA
| | - Gwen Karen Sanchirico
- Department of Science and Mathematics, Fashion Institute of Technology, New York, NY 10001, USA
| | - Grace Miquelon
- Department of Science and Mathematics, Fashion Institute of Technology, New York, NY 10001, USA
| | - Dong An
- Department of Chemical Engineering, Columbia University, New York, NY 10027, USA
| | - Sebastian T. Russell
- Department of Chemical Engineering, Columbia University, New York, NY 10027, USA
| | - Adrian M. Chitu
- Materials Science and Engineering, Columbia University, New York, NY 10027, USA
| | - Susanne Goetz
- Surface/Textile Design, Fashion Institute of Technology, New York, NY 10001, USA
| | | | - Colin Nuckolls
- Department of Chemistry, Columbia University, New York, NY 10027, USA
| | - Sanat K. Kumar
- Department of Chemical Engineering, Columbia University, New York, NY 10027, USA
| | - Helen H. Lu
- Materials Research Science and Engineering Center, Columbia University, New York, NY 10027, USA
- Department of Biomedical Engineering, Columbia University, New York, NY 10027, USA
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Esim O, Ozkan CK, Sarper M, Savaser A, Ozkan Y. Development of Gemcitabine Loaded PLGA/Lecithin Nanoparticles for Non-Small Cell Lung Cancer Therapy. Curr Drug Deliv 2021; 17:622-628. [PMID: 32394837 DOI: 10.2174/1567201817666200512094145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 01/20/2020] [Accepted: 04/16/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Compared to polymeric nanoparticles prepared using non-lipid surfactants, lecithin addition forms larger nanoparticles and exhibits higher drug loading and the stability of nanoparticles can be conferred by adding Vitamin E Polyethylene Glycol Succinate (TPGS) into the formulation. AIM The aim of this study is to prepare Gemcitabine (Gem) loaded lecithin/PLGA nanoparticles. Moreover, the effect of TPGS and sodium cholate (SK) on the preparation of lecithin/PLGA nanoparticles was compared. METHODS It was found that while PC addition into PLGATPGS nanoparticles formed larger particles (251.3± 6.0 nm for Gem-PLGATPGS NPs and 516,9 ± 3.9 nm for Gem-PLGA-PCTPGS NPs), the particle size of PLGASK nanoparticles was not affected by lecithin addition (p>0.05;). RESULTS In cytotoxicity studies, it was found that the SK-MES-1 cell inhibition rates of Gem-PLGATPGS NPs, Gem-PLGA-PCTPGS NPs, Gem-PLGASK NPs, Gem-PLGA-PCSK NPs were similar with free Gem (p>0.05;). In cytotoxicity studies, it was found that the encapsulation into nanoparticles did not change the cytotoxicity of the drug. However, higher cellular uptake has been observed when the lecithin was used in the preparation of PLGA nanoparticles. CONCLUSION Compared with free Gem, the Gem-loaded nanoparticles enhanced the uptake of the drug by SK-MES-1 cells which can increase the effect of gemcitabine for non-small cell lung cancer therapy.
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Affiliation(s)
- Ozgur Esim
- Department of Pharmaceutical Technology, Gulhane Faculty of Pharmacy, University of Health Sciences, Ankara, Turkey
| | - Cansel K Ozkan
- Department of Pharmaceutical Technology, Gulhane Faculty of Pharmacy, University of Health Sciences, Ankara, Turkey
| | - Meral Sarper
- Stem Cell Research Center, Gulhane Institute of Health Sciences, University of Health Sciences, Ankara, Turkey
| | - Ayhan Savaser
- Department of Pharmaceutical Technology, Gulhane Faculty of Pharmacy, University of Health Sciences, Ankara, Turkey
| | - Yalcin Ozkan
- Department of Pharmaceutical Technology, Gulhane Faculty of Pharmacy, University of Health Sciences, Ankara, Turkey
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Chen JC, Chen CH, Chang KC, Liu SM, Ko CL, Shih CJ, Sun YS, Chen WC. Evaluation of the Grafting Efficacy of Active Biomolecules of Phosphatidylcholine and Type I Collagen on Polyether Ether Ketone: In Vitro and In Vivo. Polymers (Basel) 2021; 13:polym13132081. [PMID: 34202722 PMCID: PMC8271559 DOI: 10.3390/polym13132081] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 06/23/2021] [Accepted: 06/23/2021] [Indexed: 01/17/2023] Open
Abstract
Biomolecule grafting on polyether ether ketone (PEEK) was used to improve cell affinity caused by surface inertness. This study demonstrated the sequence-polished (P) and sulfonated (SA) PEEK modification to make a 3D structure, active biomolecule graftings through PEEK silylation (SA/SI) and then processed with phosphatidylcholine (with silylation of SA/SI/PC; without SA/PC) and type I collagen (COL I, with silylation of SA/SI/C; without SA/C). Different modified PEEKs were implanted for 4, 8, and 12 weeks for histology. Sulfonated PEEK of SA showed the surface roughness was significantly increased; after the silylation of SA/SI, the hydrophilic nature was remarkably improved. The biomolecules were effectively grafted through silylation, and the cells showed improved attachment after 1 h. Furthermore, the SA/SI/PC group showed good in vitro mineralization. The new bone tissues were integrated into the 3D porous structures of SA/SI/PC and SA/SI/C in vivo making PEEK a potential alternative to metals in orthopedic implants.
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Affiliation(s)
- Jian-Chih Chen
- Department of Orthopedics, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan;
- Department of Orthopedics, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan
| | - Chih-Hua Chen
- Advanced Medical Devices and Composites Laboratory, Department of Fiber and Composite Materials, Feng Chia University, Taichung 407, Taiwan; (C.-H.C.); (K.-C.C.); (S.-M.L.); (C.-L.K.)
| | - Kai-Chi Chang
- Advanced Medical Devices and Composites Laboratory, Department of Fiber and Composite Materials, Feng Chia University, Taichung 407, Taiwan; (C.-H.C.); (K.-C.C.); (S.-M.L.); (C.-L.K.)
| | - Shih-Ming Liu
- Advanced Medical Devices and Composites Laboratory, Department of Fiber and Composite Materials, Feng Chia University, Taichung 407, Taiwan; (C.-H.C.); (K.-C.C.); (S.-M.L.); (C.-L.K.)
| | - Chia-Ling Ko
- Advanced Medical Devices and Composites Laboratory, Department of Fiber and Composite Materials, Feng Chia University, Taichung 407, Taiwan; (C.-H.C.); (K.-C.C.); (S.-M.L.); (C.-L.K.)
| | - Chi-Jen Shih
- Department of Fragrance and Cosmetic Science, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan;
- Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan
| | - Ying-Sui Sun
- School of Dental Technology, College of Oral Medicine, Taipei Medical University, Taipei 110, Taiwan;
| | - Wen-Cheng Chen
- Advanced Medical Devices and Composites Laboratory, Department of Fiber and Composite Materials, Feng Chia University, Taichung 407, Taiwan; (C.-H.C.); (K.-C.C.); (S.-M.L.); (C.-L.K.)
- Department of Fragrance and Cosmetic Science, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan;
- Dental Medical Devices and Materials Research Center, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Correspondence:
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Chen S, Du C. [Preparation and osteogenic properties of poly ( L-lactic acid)/lecithin porous scaffolds with open pore structure]. ZHONGGUO XIU FU CHONG JIAN WAI KE ZA ZHI = ZHONGGUO XIUFU CHONGJIAN WAIKE ZAZHI = CHINESE JOURNAL OF REPARATIVE AND RECONSTRUCTIVE SURGERY 2019; 32:1123-1130. [PMID: 30701727 DOI: 10.7507/1002-1892.201804127] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Objective To investigate the preparation and osteogenic properties of poly ( L-lactic acid)(PLLA)/lecithin porous scaffolds with open pore structure. Methods PLLA/lecithin porous scaffolds with different lecithin contents (0, 5%, 10%, 20%, 30%, 40%, 50%) were prepared by thermally induced phase separation (groups A, B, C, D, E, F, and G, respectively). Scanning electron microscopy (SEM) was used to observe the surface morphology of the scaffolds. Wide-angle X-ray diffraction (XRD) and differential scanning calorimetry (DSC) were used to detect the crystallinity of the scaffolds. The water uptake ability of the scaffolds was measured. The cell growth and viability of bone marrow mesenchymal stem cells (BMSCs) of mouse on each scaffold was assessed by cell counting kit 8 (CCK-8) method. The osteogenic differentiation ability of BMSCs on each scaffold was evaluated by alkaline phosphatase (ALP) activity. Finally, a critical-size rat calvarial bone defect model was used to evaluate the osteogenesis of the scaffolds in vivo. Micro-CT was used to reconstruct the three-dimensional model of the defect area, and the bone volume and bone mineral density were quantitatively analyzed. Results SEM results showed that the lecithin could slightly reduce the pore size; when lecithin content was 50%, platelet-like structure could be observed on the scaffolds. Wide angle XRD and DSC showed that the crystallinity of scaffolds gradually decreased with the increase of lecithin content. The water uptake ability test showed that the hydrophilicity of scaffolds increased with the increase of lecithin content. CCK-8 assay showed that cell activity gradually increased with the increase of culture time. After 7 days of culture, the absorbance ( A) value of groups C, D, E, and F were significantly higher than that of groups A, B, and G ( P<0.05), but no significant difference was found among groups C, D, E, and F ( P>0.05). After 14 days of osteogenic induction, with the increase of lecithin content, there was a significant difference in ALP activity of each group. The ALP activity in groups D, E, F, and G were significantly higher than that in groups A, B, and C ( P<0.05). In vivo, the results of Micro-CT examination and bone volume and bone mineral density showed that the scaffolds with 30% lecithin had the best repairing effect. Conclusion Prepared by thermally induced phase separation, the cytocompatibility, osteogenic differentiation, and bone repair ability of the PLLA/lecithin porous scaffold is obviously better than that of pure PLLA scaffold. PLLA/lecithin porous scaffold with suitable lecithin content is a promising scaffold material for bone tissue engineering.
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Affiliation(s)
- Si Chen
- Department of Biomedical Engineering, School of Materials Science and Engineering, South China University of Technology, Guangzhou Guangdong, 510641, P.R.China;National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou Guangdong, 510006, P.R.China;Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, South China University of Technology, Guangzhou Guangdong, 510006, P.R.China
| | - Chang Du
- Department of Biomedical Engineering, School of Materials Science and Engineering, South China University of Technology, Guangzhou Guangdong, 510641, P.R.China;National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou Guangdong, 510006, P.R.China;Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, South China University of Technology, Guangzhou Guangdong, 510006,
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Matson T, Gootee J, Snider C, Brockman J, Grant D, Grant SA. Electrospun PCL, gold nanoparticles, and soy lecithin composite material for tissue engineering applications. J Biomater Appl 2019; 33:979-988. [PMID: 30522383 DOI: 10.1177/0885328218815807] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2023]
Abstract
Soy lecithin has been shown to play a critical role in cell signaling and cellular membrane structure. In addition, it has been shown to increase biocompatibility, hydrophilicity, and decrease cytotoxicity. Gold nanoparticles have also shown to improve cellularity. Lecithin, gold nanoparticles, and polycaprolactone (PCL) solutions were electrospun in order to develop unique mesh materials for the treatment of osteoarthritis. The electrospinning parameters were optimized to achieve different solution ratios for fiber optimization. The amount of lecithin mixed with PCL varied from 30 wt.% to 50 wt.% . Gold nanoparticles (1% to 10% concentrations) were also added to lecithin-PCL mixture. The mechanical and chemical properties of the fiber mesh were analyzed via contact angle test, tensile mechanical tests, Fourier transform infrared spectroscopy (FTIR), and differential scanning calorimetry (DSC). Cell viability was measured using a WST-1 Assay. Scanning electron microscopy confirmed the successful formation of fiber mesh. The compositions of 40% soy lecithin with PCL in 40% solvent (40:40) resulted in the most well-formed fiber mesh. DSC melt temperatures were statically insignificant; uniaxial stresses and the moduli resulted in no significant difference between the test composition and pristine PCL compositions. WST-1 assay revealed all compositions were non-cytotoxic. Overall, the addition of lecithin increased hydrophilicity while maintaining cell viability and the mechanical and chemical properties of PCL. This study demonstrated that it is possible to successfully electrospin a lecithin, gold nanoparticle, and polycaprolactone scaffold for tissue engineering applications.
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Affiliation(s)
- Toni Matson
- Department of Bioengineering, University of Missouri, Columbia, MO, USA
| | - Jonathan Gootee
- Department of Bioengineering, University of Missouri, Columbia, MO, USA
| | - Colten Snider
- Department of Bioengineering, University of Missouri, Columbia, MO, USA
| | - John Brockman
- Department of Bioengineering, University of Missouri, Columbia, MO, USA
| | - David Grant
- Department of Bioengineering, University of Missouri, Columbia, MO, USA
| | - Sheila A Grant
- Department of Bioengineering, University of Missouri, Columbia, MO, USA
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The Evaluation of Proanthocyanidins/Chitosan/Lecithin Microspheres as Sustained Drug Delivery System. BIOMED RESEARCH INTERNATIONAL 2018; 2018:9073420. [PMID: 30140704 PMCID: PMC6081580 DOI: 10.1155/2018/9073420] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 06/03/2018] [Accepted: 06/12/2018] [Indexed: 12/23/2022]
Abstract
Proanthocyanidin (PC) has attracted wide attention on cosmetics and pharmaceutical due to its antioxidant, anticancer, antimicrobial, antiangiogenic, and anti-inflammatory activities. However, PC applications are limited because of its sensitivity to thermal treatment, light, and oxidation and the poor absorption in the gastrointestinal tract. Thus, a novel dosage form of PC needs to be designed to improve its stability and bioavailability for drug delivery. The objective of this study is to fabricate proanthocyanidins/chitosan/lecithin (PC/CTS/LEC) microspheres and investigate various characteristics. In the current study, PC/CTS/LEC microspheres were prepared by spray-drying technology. The yield (61.68%), encapsulation efficiency (68.19%), and drug loading capacity (17.05%) were found in the results. The scanning electron microscope demonstrated that the microspheres were spherical in shape with wrinkled surfaces. DSC study displayed that the microspheres stability was greatly improved when comparing with bare PC. The in vitro release study showed that the 76.92% of PC was released from microspheres within 48 h. The moisture contents of microspheres ranged from 8% to 13%. The swelling rate and tapped density of microspheres were elevated with increasing the concentration of chitosan in the formulations. The moisture uptake of microspheres was saturated at 40°C/RH75% within 12 h. Our results indicated that the stability of PC/CTS/LEC microspheres was enhanced, and it is a promising carrier for sustained drug delivery system.
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Harini S, Venkatesh M, Radhakrishnan S, Fazil MHUT, Goh ETL, Rui S, Dhand C, Ong ST, Barathi VA, Beuerman RW, Ramakrishna S, Verma NK, Lakshminarayanan R. Antifungal properties of lecithin- and terbinafine-loaded electrospun poly(ε-caprolactone) nanofibres. RSC Adv 2016. [DOI: 10.1039/c6ra04755f] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
We investigated the effect of terbinafine- and egg lecithin-loaded PCL mats on mechanical properties, swellability, biocompatibility andin vitroandex vivoantifungal efficacy against pathogenic moulds and dermatophytes.
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Affiliation(s)
- Sriram Harini
- Singapore Eye Research Institute
- The Academia
- Singapore 169856
| | | | - Sridhar Radhakrishnan
- Department of Mechanical Engineering
- National University of Singapore
- Singapore 117584
- Center for Nanofibres and Nanotechnology
- National University of Singapore
| | | | | | - Sun Rui
- Department of Mechanical Engineering
- National University of Singapore
- Singapore 117584
| | - Chetna Dhand
- Singapore Eye Research Institute
- The Academia
- Singapore 169856
| | - Seow Theng Ong
- Lee Kong Chian School of Medicine
- Nanyang Technological University
- Singapore 636921
| | - Veluchamy Amutha Barathi
- Singapore Eye Research Institute
- The Academia
- Singapore 169856
- Ophthalmology and Visual Sciences Academic Clinical Program
- Duke-NUS Graduate Medical School
| | - Roger W. Beuerman
- Singapore Eye Research Institute
- The Academia
- Singapore 169856
- Ophthalmology and Visual Sciences Academic Clinical Program
- Duke-NUS Graduate Medical School
| | - Seeram Ramakrishna
- Department of Mechanical Engineering
- National University of Singapore
- Singapore 117584
- Center for Nanofibres and Nanotechnology
- National University of Singapore
| | - Navin Kumar Verma
- Singapore Eye Research Institute
- The Academia
- Singapore 169856
- Lee Kong Chian School of Medicine
- Nanyang Technological University
| | - Rajamani Lakshminarayanan
- Singapore Eye Research Institute
- The Academia
- Singapore 169856
- Ophthalmology and Visual Sciences Academic Clinical Program
- Duke-NUS Graduate Medical School
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Zhang J, Chang P, Zhang C, Xiong G, Luo H, Zhu Y, Ren K, Yao F, Wan Y. Immobilization of lecithin on bacterial cellulose nanofibers for improved biological functions. REACT FUNCT POLYM 2015. [DOI: 10.1016/j.reactfunctpolym.2015.05.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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11
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Huang W, Li X, Shi X, Lai C. Microsphere based scaffolds for bone regenerative applications. Biomater Sci 2014; 2:1145-1153. [DOI: 10.1039/c4bm00161c] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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12
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Wang X, Ding B, Sun G, Wang M, Yu J. Electro-spinning/netting: A strategy for the fabrication of three-dimensional polymer nano-fiber/nets. PROGRESS IN MATERIALS SCIENCE 2013; 58:1173-1243. [PMID: 32287484 PMCID: PMC7112371 DOI: 10.1016/j.pmatsci.2013.05.001] [Citation(s) in RCA: 242] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2011] [Revised: 11/14/2011] [Accepted: 05/09/2013] [Indexed: 05/18/2023]
Abstract
Since 2006, a rapid development has been achieved in a subject area, so called electro-spinning/netting (ESN), which comprises the conventional electrospinning process and a unique electro-netting process. Electro-netting overcomes the bottleneck problem of electrospinning technique and provides a versatile method for generating spider-web-like nano-nets with ultrafine fiber diameter less than 20 nm. Nano-nets, supported by the conventional electrospun nanofibers in the nano-fiber/nets (NFN) membranes, exhibit numerious attractive characteristics such as extremely small diameter, high porosity, and Steiner tree network geometry, which make NFN membranes optimal candidates for many significant applications. The progress made during the last few years in the field of ESN is highlighted in this review, with particular emphasis on results obtained in the author's research units. After a brief description of the development of the electrospinning and ESN techniques, several fundamental properties of NFN nanomaterials are addressed. Subsequently, the used polymers and the state-of-the-art strategies for the controllable fabrication of NFN membranes are highlighted in terms of the ESN process. Additionally, we highlight some potential applications associated with the remarkable features of NFN nanostructure. Our discussion is concluded with some personal perspectives on the future development in which this wonderful technique could be pursued.
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Affiliation(s)
- Xianfeng Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
- Nanomaterials Research Center, Modern Textile Institute, Donghua University, Shanghai 200051, China
- College of Textiles, Donghua University, Shanghai 201620, China
| | - Bin Ding
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
- Nanomaterials Research Center, Modern Textile Institute, Donghua University, Shanghai 200051, China
| | - Gang Sun
- Nanomaterials Research Center, Modern Textile Institute, Donghua University, Shanghai 200051, China
| | - Moran Wang
- Department of Engineering Mechanics and CNMM, School of Aerospace, Tsinghua University, Beijing 100084, China
| | - Jianyong Yu
- Nanomaterials Research Center, Modern Textile Institute, Donghua University, Shanghai 200051, China
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Borjigin M, Eskridge C, Niamat R, Strouse B, Bialk P, Kmiec EB. Electrospun fiber membranes enable proliferation of genetically modified cells. Int J Nanomedicine 2013; 8:855-64. [PMID: 23467983 PMCID: PMC3587395 DOI: 10.2147/ijn.s40117] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Polycaprolactone (PCL) and its blended composites (chitosan, gelatin, and lecithin) are well-established biomaterials that can enrich cell growth and enable tissue engineering. However, their application in the recovery and proliferation of genetically modified cells has not been studied. In the study reported here, we fabricated PCL-biomaterial blended fiber membranes, characterized them using physicochemical techniques, and used them as templates for the growth of genetically modified HCT116-19 colon cancer cells. Our data show that the blended polymers are highly miscible and form homogenous electrospun fiber membranes of uniform texture. The aligned PCL nanofibers support robust cell growth, yielding a 2.5-fold higher proliferation rate than cells plated on standard plastic plate surfaces. PCL-lecithin fiber membranes yielded a 2.7-fold higher rate of proliferation, while PCL-chitosan supported a more modest growth rate (1.5-fold higher). Surprisingly, PCL-gelatin did not enhance cell proliferation when compared to the rate of cell growth on plastic surfaces.
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Affiliation(s)
- Mandula Borjigin
- Department of Chemistry, Delaware State University, Dover, DE 19901, USA
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14
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Zhang M, Wang K, Wang Z, Xing B, Zhao Q, Kong D. Small-diameter tissue engineered vascular graft made of electrospun PCL/lecithin blend. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2012; 23:2639-2648. [PMID: 22815052 DOI: 10.1007/s10856-012-4721-4] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2011] [Accepted: 07/04/2012] [Indexed: 06/01/2023]
Abstract
In this study, natural lecithin was incorporated into cholesterol-poly(ε-caprolactone) (Chol-PCL) by solution blending in order to modify the performance of the hydrophobic and bio-inert PCL. The fibrous Chol-PCL/lecithin membranes were fabricated by electrospinning, and the surface morphology and properties were characterized by scanning electron microscopy, X-ray photoelectron spectroscopy, static water contact angle, and mechanical tensile testing. The blood compatibility of the scaffolds was evaluated by in vitro hemolysis assay. The cytocompatibility of the scaffolds was investigated by cell adhesion and proliferation using bone-marrow mesenchymal stem cells (MSCs). Subcutaneous implantation was also performed to evaluate the in vivo inflammatory reaction. The tubular tissue-engineered vascular graft (TEVG) was further constructed by rolling cell sheet comprising fibrous membrane and MSCs. Furthermore, endothelial cells (ECs) were seeded onto the lumen of the graft with the aim to form vascular endothelium. The preliminary results indicate that electrospun Chol-PCL/lecithin scaffolds show improved hemocompatibility and cytocompatibility compared with neat Chol-PCL, and combining the Chol-PCL/lecithin fibrous scaffold with MSCs and ECs with well controlled distribution is a promising strategy for constructing TEVGs.
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Affiliation(s)
- Min Zhang
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China
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15
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Shi JG, Fu WJ, Wang XX, Xu YD, Li G, Hong BF, Wang Y, Du ZY, Zhang X. Tissue engineering of ureteral grafts by seeding urothelial differentiated hADSCs onto biodegradable ureteral scaffolds. J Biomed Mater Res A 2012; 100:2612-22. [PMID: 22615210 DOI: 10.1002/jbm.a.34182] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2011] [Revised: 02/10/2012] [Accepted: 03/15/2012] [Indexed: 11/08/2022]
Abstract
The study is aimed to evaluate the differentiation potential of human adipose-derived stem cells (hADSCs) into urothelial lineage, and to assess possibility of constructing ureteral grafts using the differentiated hADSCs and a novel polylactic acid (PLA)/collagen scaffolds. HADSCs were indirectly cocultured with urothelial cells in a transwell coculture system for urothelial differentiation. After 14 days coculturing, differentiation was evaluated by detecting urothelial lineage markers (cytokeratin-18 and uroplakin 2) in mRNA and protein level. Then the differentiated hADSCs were seeded onto PLA/collagen ureteral scaffolds and cultured in vitro for 1 week. The biocompatibility of the scaffolds was tested by scanning electron microscopy (SEM) and MTT analysis. At last, the cell/scafflod grafts were subcutaneously implanted into 4-week-old female athymic mice for 14 days. The results demonstrated that the hADSCs could be efficiently induced into urothelial lineage by indirect coculture. The differentiated cells seeded onto the PLA/collagen ureteral scaffolds survived up to 7 days and maintained proliferation in vitro, which indicated that the scaffolds displayed good biocompatibility. In vivo study showed that the differentiated cells in the grafts survived, formed multiple layers on the scaffolds and expressed urothelial lineage markers. In conclusion, hADSCs may serve as an alternative cell resource in cell-based tissue engineering for ureteral reconstruction. These cells could be employed to construct a model of ureteral engineering grafts and be effectively applied in vivo, which could be a new strategy on ureteral replacement with applicable potential in clinical research.
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Affiliation(s)
- Jian-Guo Shi
- Department of Urology, Chinese People's Liberation Army General Hospital, Military Postgraduate Medical College, Haidian District, Beijing, People's Republic of China
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Nirmala R, Park HM, Navamathavan R, Kang HS, El-Newehy MH, Kim HY. Lecithin blended polyamide-6 high aspect ratio nanofiber scaffolds via electrospinning for human osteoblast cell culture. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2011. [DOI: 10.1016/j.msec.2010.11.013] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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17
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Li G, Wang ZX, Fu WJ, Hong BF, Wang XX, Cao L, Xu FQ, Song Q, Cui FZ, Zhang X. Introduction to biodegradable polylactic acid ureteral stent application for treatment of ureteral war injury. BJU Int 2011; 108:901-6. [PMID: 21223480 DOI: 10.1111/j.1464-410x.2010.09992.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
OBJECTIVE • To study the operability and effectiveness of a biodegradable ureteral stent for clinical treatment of ureteral war injury using a canine model. MATERIALS AND METHODS • A device was designed and employed to generate firearm fragment wounds in unilateral ureters (on randomly chosen sides) of nine beagles (Group A). The wounded ureters were then debrided and sutured. • Intravenous pyelography (IVP) and radioactive renography were performed 40, 80 and 120 days postoperatively. In Group B, firearm fragment wounds were made to the bilateral ureters in nine beagles. A polylactic acid stent was placed unilaterally (on a randomly chosen side) whereas the ureter on the other side was debrided and sutured without stenting. • Both IVP and radioactive renography were performed 40, 80 and 120 days postoperatively. The operability and effectiveness of the biodegradable ureteral stent were studied thereafter. RESULTS • In Group A, hydronephrosis and hydroureter occurred and worsened postoperatively on the wounded sides in all nine beagles. The ratio of the renal partial concentration indices (RPCI) between the kidneys (unwounded side : wounded side) increased. • The ratio of the kidney washout half-time between the kidneys (unwounded side : wounded side) decreased. In Group B, neither hydronephrosis nor hydroureter was found postoperatively in the stented ureters but both occurred in the unstented ureters in all nine beagles. • The ratio of RPCI between kidneys (stented side : unstented side) increased whereas the kidney washout half-time ratio between the stented and unstented sides decreased. Differences were significant. CONCLUSION • In Group A, the new canine model for firearm fragment wounds was tested and proved to be operable and effective. In Group B, hydronephrosis and hydroureter were effectively prevented in ureters by biodegradable stent placement compared with the non-stented ureters where hydronephrosis and hydroureter occurred. The renal concentration capacity was effectively protected and the half-time of kidney washout was shortened.
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Affiliation(s)
- Gang Li
- Department of Urology, The General Hospital of PLA, Beijing, China
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18
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Zhu N, Li MG, Guan YJ, Schreyer DJ, Chen XB. Effects of laminin blended with chitosan on axon guidance on patterned substrates. Biofabrication 2010; 2:045002. [DOI: 10.1088/1758-5082/2/4/045002] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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19
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Chen X, Li Y, Gu N. A novel basalt fiber-reinforced polylactic acid composite for hard tissue repair. Biomed Mater 2010; 5:044104. [DOI: 10.1088/1748-6041/5/4/044104] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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20
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Shi X, Wang Y, Ren L, Lai C, Gong Y, Wang DA. A novel hydrophilic poly(lactide-co-glycolide)/lecithin hybrid microspheres sintered scaffold for bone repair. J Biomed Mater Res A 2010; 92:963-72. [PMID: 19291688 DOI: 10.1002/jbm.a.32423] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Novel 3-D porous scaffolds made of sintered poly(lacide-co-glycolide) (PLGA)/lecithin hybrid microspheres (PLGA/Lec-SMS) were developed and investigated. The addition of lecithin in PLGA bulk successfully managed the desired hydrophilic modification without sacrificing bulk properties. The outcomes were verified with infrared (ATR-FTIR) spectroscopy, X-ray photoelectron spectroscopy (XPS), and contact angle analyses. Specifically, this model of scaffold gained significant improvement in mechanical (mainly compressive) strength upon an optimization of lecithin fractions aligning with sintering conditions. Given a perspective of bone tissue engineering use, human fetal osteoblasts were seeded into a series of these PLGA/Lec-SMS scaffolds upon which key parameters of cytocompatibility and osteoconductivity (including cell viability, alkaline phosphatase activity, calcium secretion, and osteogenic genes expression) were assessed. Osteoblasts seeded on PLGA scaffolds with 5 wt % lecithin demonstrated high cell viability and alkaline phosphatase activity. Moreover, elevated lecithin also enhanced the expression of type I collagen. Taken together, these results suggest PLGA/Lec-SMS are promising scaffolds for bone repair.
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Affiliation(s)
- Xuetao Shi
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, China
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Xu ZH, Wu QY. Effect of lecithin content blend with poly (L-lactic acid) on viability and proliferation of mesenchymal stem cells. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2009. [DOI: 10.1016/j.msec.2008.12.021] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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22
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Shi X, Wang Y, Ren L, Huang W, Wang DA. A protein/antibiotic releasing poly(lactic-co-glycolic acid)/lecithin scaffold for bone repair applications. Int J Pharm 2009; 373:85-92. [DOI: 10.1016/j.ijpharm.2009.02.013] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2008] [Revised: 02/16/2009] [Accepted: 02/17/2009] [Indexed: 12/27/2022]
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23
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Liu YK, Lu QZ, Pei R, Ji HJ, Zhou GS, Zhao XL, Tang RK, Zhang M. The effect of extracellular calcium and inorganic phosphate on the growth and osteogenic differentiation of mesenchymal stem cells
in vitro
: implication for bone tissue engineering. Biomed Mater 2009; 4:025004. [DOI: 10.1088/1748-6041/4/2/025004] [Citation(s) in RCA: 90] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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24
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Wang Y, Cui FZ, Jiao YP, Hu K, Fan DD. Modification of bone graft by blending with lecithin to improve hydrophilicity and biocompatibility. Biomed Mater 2008; 3:015012. [PMID: 18458499 DOI: 10.1088/1748-6041/3/1/015012] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Lecithin was blended to improve the hydrophilicity and biocompatibility of bone graft containing poly(l-lactic acid) (PLLA). Solution blending and freeze drying were used to fabricate symmetrical scaffolds containing different percentages of lecithin (lecithin: PLLA = 0, 5, 10 wt%). Scanning electron microscopy showed that the scaffolds maintained the three-dimensional porous structure. A water uptake experiment proved the significant improvement of hydrophilicity of the blend scaffold. With the addition of lecithin, the compressive strength and compressive modulus decreased. When the weight ratio of lecithin to PLLA was up to 10%, the compressive strength was still more than the lower limit of natural cancellous bone. To test the biocompatibility of the scaffolds, cell culture in vitro and subcutaneous implantation in vivo were performed. MC3T3-E1 preosteoblastic cells were cultured on the scaffolds for 7 days. Methylthiazol tetrazolium assay and laser scanning confocal microscopy were used to exhibit proliferation and morphology of the cells. The subcutaneous implantation in rats tested inflammatory response to the scaffolds. The results proved the better biocompatibility and milder inflammatory reactions of the blend scaffold (lecithin: PLLA = 5%) compared with the scaffold without lecithin. The modified scaffold containing lecithin is promising for bone tissue engineering.
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Affiliation(s)
- Y Wang
- Biomaterials Laboratory, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, People's Republic of China
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