Journal of Biomaterials Applications最新文献

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Enhancing alginate dialdehyde-gelatin (ADA-GEL) based hydrogels for biofabrication by addition of phytotherapeutics and mesoporous bioactive glass nanoparticles (MBGNs). 通过添加植物治疗剂和介孔生物活性玻璃纳米颗粒(MBGNs),增强基于海藻酸二醛明胶(ADA-GEL)的水凝胶,用于生物制造。
IF 2.3 4区 医学
Journal of Biomaterials Applications Pub Date : 2024-09-21 DOI: 10.1177/08853282241280768
Faina Bider, Chiara Gunnella, Jana T Reh, Corina-Elena Clejanu, Sonja Kuth, Ana M Beltrán, Aldo R Boccaccini
{"title":"Enhancing alginate dialdehyde-gelatin (ADA-GEL) based hydrogels for biofabrication by addition of phytotherapeutics and mesoporous bioactive glass nanoparticles (MBGNs).","authors":"Faina Bider, Chiara Gunnella, Jana T Reh, Corina-Elena Clejanu, Sonja Kuth, Ana M Beltrán, Aldo R Boccaccini","doi":"10.1177/08853282241280768","DOIUrl":"https://doi.org/10.1177/08853282241280768","url":null,"abstract":"<p><p>This study explores the 3D printing of alginate dialdehyde-gelatin (ADA-GEL) inks incorporating phytotherapeutic agents, such as ferulic acid (FA), and silicate mesoporous bioactive glass nanoparticles (MBGNs) at two different concentrations. 3D scaffolds with bioactive properties suitable for bone tissue engineering (TE) were obtained. The degradation and swelling behaviour of films and 3D printed scaffolds indicated an accelerated trend with increasing MBGN content, while FA appeared to stabilize the samples. Determination of the degree of crosslinking validated the increased stability of hydrogels due to the addition of FA and 0.1% (w/v) MBGNs. The incorporation of MBGNs not only improved the effective moduli and conferred bioactive properties through the formation of hydroxyapatite (HAp) on the surface of ADA-GEL-based samples but also enhanced VEGF-A expression of MC3T3-E1 cells. The beneficial impact of FA and low concentrations of MBGNs in ADA-GEL-based inks for 3D (bio)printing applications was corroborated through various printing experiments, resulting in higher printing resolution, as also confirmed by rheological measurements. Cytocompatibility investigations revealed enhanced MC3T3-E1 cell activity and viability. Furthermore, the presence of mineral phases, as confirmed by an in vitro biomineralization assay, and increased ALP activity after 21 days, attributed to the addition of FA and MBGNs, were demonstrated. Considering the acquired structural and biological properties, along with efficient drug delivery capability, enhanced biological activity, and improved 3D printability, the newly developed inks exhibit promising potential for biofabrication and bone TE.</p>","PeriodicalId":15138,"journal":{"name":"Journal of Biomaterials Applications","volume":" ","pages":"8853282241280768"},"PeriodicalIF":2.3,"publicationDate":"2024-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142287980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Boric acid and zinc borate doped graphene hydrogels designed for burn treatment: In vitro viability-biocompatibility tests and microbiological analysis. 用于烧伤治疗的掺杂硼酸和硼酸锌的石墨烯水凝胶:体外活力-生物相容性测试和微生物分析。
IF 2.3 4区 医学
Journal of Biomaterials Applications Pub Date : 2024-09-20 DOI: 10.1177/08853282241268673
Yasin Bayir, Beyzagül Erkayman, Abdulmecit Albayrak, Şaziye Sezin Palabiyik-Yücelik, Sümeyra Can, Hayrunisa Hanci, Fatih Tunç, Hamza Halici, Maide Sena Civelek, Melike Sevim, Emir Enis Yurdgülü, Önder Metin
{"title":"Boric acid and zinc borate doped graphene hydrogels designed for burn treatment: In vitro viability-biocompatibility tests and microbiological analysis.","authors":"Yasin Bayir, Beyzagül Erkayman, Abdulmecit Albayrak, Şaziye Sezin Palabiyik-Yücelik, Sümeyra Can, Hayrunisa Hanci, Fatih Tunç, Hamza Halici, Maide Sena Civelek, Melike Sevim, Emir Enis Yurdgülü, Önder Metin","doi":"10.1177/08853282241268673","DOIUrl":"https://doi.org/10.1177/08853282241268673","url":null,"abstract":"<p><p>Boron, an essential element for human, can be a key factor in wound healing. For this reason, in this study, role of boron products (boric acid and zinc borate) and boron product doped new synthesized graphene hydrogels was investigated for burn healing via in vitro viability-biocompatibility tests and microbiological analysis. It has been determined that boric acid and zinc borate are effective against microbial agents that are frequently seen in burns. In L929 mouse fibroblast cell line, BA, ZB and graphene hydrogels did not show any toxic effects, either alone or doped Graphene Hydrogel forms, except at very high doses. These substances showed antioxidant properties by protecting cells against H<sub>2</sub>O<sub>2</sub> damage. The migration test performed on boron products also confirms the protective effect of boron products. In this study, the synthesis of graphene hydrogels was made for the first time, and their characterization was completed with appropriate instrumental analyses. The results of the biocompatibility tests of graphene hydrogels show that they are at least 96% biocompatible.</p>","PeriodicalId":15138,"journal":{"name":"Journal of Biomaterials Applications","volume":" ","pages":"8853282241268673"},"PeriodicalIF":2.3,"publicationDate":"2024-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142287979","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Application of self-assembled antibacterial nanofiber loaded oriented artificial skin in infected diabetic-related wound regeneration. 自组装抗菌纳米纤维负载定向人造皮肤在糖尿病相关感染伤口再生中的应用。
IF 2.3 4区 医学
Journal of Biomaterials Applications Pub Date : 2024-09-19 DOI: 10.1177/08853282241267253
Jie Yang, Shengyun Li
{"title":"Application of self-assembled antibacterial nanofiber loaded oriented artificial skin in infected diabetic-related wound regeneration.","authors":"Jie Yang, Shengyun Li","doi":"10.1177/08853282241267253","DOIUrl":"https://doi.org/10.1177/08853282241267253","url":null,"abstract":"<p><p>Diabetic patients develop wounds that exhibit delayed healing, prolonged inflammatory responses, and slower epithelialization kinetics compared to non-diabetic patients. Diabetic foot ulcers(DFUs) affect approximately 18.6 million people worldwide. The presence of a high glucose microenvironment in DFUs results in the significant accumulation of bacterial infection and advanced glycation end products (AGEs). To solve this, a self-assemble antibacterial nanofiber(ANF) loaded oriential artificial skin (ANF@OAS) was introduced in this research, which is consisted of L/D-phenylalanine derivatives coupled the natural antimicrobial peptides. The ANF@OAS can effectively reduce AGEs production and suppress multiple resistant bacteria. Additionally, the ANF@OAS can suppress infection and stimulate wound healing in infected diabetic mice.</p>","PeriodicalId":15138,"journal":{"name":"Journal of Biomaterials Applications","volume":" ","pages":"8853282241267253"},"PeriodicalIF":2.3,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142287978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Application of self-assembled antibacterial nanofiber loaded oriented artificial skin in infected diabetic-related wound regeneration 自组装抗菌纳米纤维负载定向人造皮肤在糖尿病相关感染伤口再生中的应用
IF 2.9 4区 医学
Journal of Biomaterials Applications Pub Date : 2024-09-14 DOI: 10.1177/08853282241270963
Jie Yang, Shengyun Li
{"title":"Application of self-assembled antibacterial nanofiber loaded oriented artificial skin in infected diabetic-related wound regeneration","authors":"Jie Yang, Shengyun Li","doi":"10.1177/08853282241270963","DOIUrl":"https://doi.org/10.1177/08853282241270963","url":null,"abstract":"Diabetic patients develop wounds that exhibit delayed healing, prolonged inflammatory responses, and slower epithelialization kinetics compared to non-diabetic patients. Diabetic foot ulcers(DFUs) affect approximately 18.6 million people worldwide. The presence of a high glucose microenvironment in DFUs results in the significant accumulation of bacterial infection and advanced glycation end products (AGEs). To solve this, a self-assemble antibacterial nanofiber(ANF) loaded oriential artificial skin (ANF@OAS) was introduced in this research, which is consisted of L/D-phenylalanine derivatives coupled the natural antimicrobial peptides.The ANF@OAS can effectively reduce AGEs production and suppress multiple resistant bacteria. Additionally, the ANF@OAS can suppress infection and stimulate wound healing in infected diabetic mice.","PeriodicalId":15138,"journal":{"name":"Journal of Biomaterials Applications","volume":"4 1","pages":"8853282241270963"},"PeriodicalIF":2.9,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142251460","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Preparation and osteogenesis of a multiple crosslinking silk fibroin/carboxymethyl chitosan/sodium alginate composite scaffold loading with mesoporous silica/poly (lactic acid-glycolic acid) microspheres. 负载介孔二氧化硅/聚(乳酸-乙醇酸)微球的多重交联蚕丝纤维素/羧甲基壳聚糖/海藻酸钠复合支架的制备与成骨。
IF 2.9 4区 医学
Journal of Biomaterials Applications Pub Date : 2024-09-12 DOI: 10.1177/08853282241281439
Yiwan Shi,Zhaozhen Wang,Weikang Xu,Xiaolu Yu,Botao Gao,Xinting Zhou,Jiwen Chen,Kunfeng Jia,Lek Hang Cheang,Man Seng Tam,Huajun Wang,Xiaofei Zheng,Tingting Wu
{"title":"Preparation and osteogenesis of a multiple crosslinking silk fibroin/carboxymethyl chitosan/sodium alginate composite scaffold loading with mesoporous silica/poly (lactic acid-glycolic acid) microspheres.","authors":"Yiwan Shi,Zhaozhen Wang,Weikang Xu,Xiaolu Yu,Botao Gao,Xinting Zhou,Jiwen Chen,Kunfeng Jia,Lek Hang Cheang,Man Seng Tam,Huajun Wang,Xiaofei Zheng,Tingting Wu","doi":"10.1177/08853282241281439","DOIUrl":"https://doi.org/10.1177/08853282241281439","url":null,"abstract":"Large bone defect repair is a striking challenge in orthopedics. Currently, inorganic-organic composite scaffolds are considered as a promising approach to these bone regeneration. Silicon ions (Si4+) are bioactive and beneficial to bone regeneration and Si4+-containing inorganic mesoporous silica (MS) can effectively load drugs for bone repair. To better control the release of drug, we prepared biodegradable MS/PLGA (MP) microspheres. MP loaded organic silk fibroin/carboxymethyl chitosan/sodium alginate (MP/SF/CMCS/SA) composite scaffolds were further constructed by genipin and Ca2+ crosslinking. All MP/SF/CMCS/SA scaffolds had good swelling ability, degradation rate and high porosity. The incorporation of 1% MP significantly enhanced the compressive strength of composite scaffolds. Besides, MP loaded scaffold showed a sustained release of Si4+ and Ca2+. Moreover, the release rate of rhodamine (a model drug) of MP/SF/CMCS/SA scaffolds was obviously lower than that of MP. When culturing with rat bone marrow mesenchymal stem cells, scaffolds with 1% MP displayed good proliferation, adhesion and enhanced osteogenic differentiation ability. Based on the results above, the addition of 1% MP in SF/CMCS/SA scaffolds is a prospective way for drug release in bone regeneration and is promising for further in vivo bone repair applications.","PeriodicalId":15138,"journal":{"name":"Journal of Biomaterials Applications","volume":"19 1","pages":"8853282241281439"},"PeriodicalIF":2.9,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142211113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Biomimetic synthetic test system based on hydroxyapatite cement for adhesive strength evaluation of experimental mineral-organic bone adhesive materials 基于羟基磷灰石骨水泥的仿生合成测试系统,用于评估矿物-有机骨粘合剂实验材料的粘合强度
IF 2.9 4区 医学
Journal of Biomaterials Applications Pub Date : 2024-09-10 DOI: 10.1177/08853282241283537
Paul Frederik Otto, Sebastian Hienz, Silvia Mittmann, Niklas Dümmler, Tobias Renner, Csaba Gergely, Juliane Carolin Kade, Uwe Gbureck
{"title":"Biomimetic synthetic test system based on hydroxyapatite cement for adhesive strength evaluation of experimental mineral-organic bone adhesive materials","authors":"Paul Frederik Otto, Sebastian Hienz, Silvia Mittmann, Niklas Dümmler, Tobias Renner, Csaba Gergely, Juliane Carolin Kade, Uwe Gbureck","doi":"10.1177/08853282241283537","DOIUrl":"https://doi.org/10.1177/08853282241283537","url":null,"abstract":"The development of bone adhesive materials is a research field of high relevance for the advancement of clinical procedures. Despite this, there are currently no material candidates meeting the full range of requirements placed on such a material, such as biocompatibility, sufficient mechanical properties and bond strength under biological conditions, practical applicability in a clinical setting, and no adverse effect on the healing process itself. A serious obstacle to the advancement of the field is a lack in standardized methodology leading to comparable results between experiments and different research groups. Natural bone samples are the current gold-standard material used to perform adhesive strength experiments, however they come with a number of drawbacks, including high sample variability due to unavoidable natural causes and the impossibility to reliably recreate test conditions to repeat experiments. This paper introduces a valuable auxiliary test method capable of producing large numbers of synthetic test specimens which are chemically similar to bone and can be produced in different laboratories so to repeat experiments under constant conditions across laboratories. The substrate is based on a hydroxyapatite forming cement with addition of gelatine as organic component. Crosslinking of the organic component is performed to improve mechanical properties. In order to demonstrate the performance of the developed method, various experimental and commercial bone/tissue adhesive materials were tested and compared with results obtained by established methods to highlight the potential of the test system.","PeriodicalId":15138,"journal":{"name":"Journal of Biomaterials Applications","volume":"49 1","pages":"8853282241283537"},"PeriodicalIF":2.9,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142211114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
γ-Cyclodextrin-metal organic framework as a carrier for trans-N-p-coumaroyltyramine: A study of drug solubability, stability, and inhibitory activity against α-glucosidase. γ-环糊精-金属有机框架作为反式-N-对香豆酰酪胺的载体:药物可溶性、稳定性和对α-葡萄糖苷酶抑制活性的研究。
IF 2.9 4区 医学
Journal of Biomaterials Applications Pub Date : 2024-09-10 DOI: 10.1177/08853282241284106
Dandan Niu,Danyang Zhou,Mengke Zhan,Lijing Lei,Jinhua Zhu,Xiuhua Liu
{"title":"γ-Cyclodextrin-metal organic framework as a carrier for trans-N-p-coumaroyltyramine: A study of drug solubability, stability, and inhibitory activity against α-glucosidase.","authors":"Dandan Niu,Danyang Zhou,Mengke Zhan,Lijing Lei,Jinhua Zhu,Xiuhua Liu","doi":"10.1177/08853282241284106","DOIUrl":"https://doi.org/10.1177/08853282241284106","url":null,"abstract":"γ-Cyclodextrin-based metal-organic frameworks (γ-CD-MOF) were successfully synthesized using the solvent diffusion method and applied as carriers for trans-N-p-coumaroyltyramine (N-p-t-CT, NCT) to study the solubability, stability, sustained release and inhibitory activity against α-glucosidase. The solubilization effect of γ-CD-MOF on N-p-t-CT was performed using impregnation (NCT@CD-MOF-1) and co-crystallization (NCT@CD-MOF-2) methods. X-ray diffraction, scanning electron microscope (SEM), fourier transform infrared spectrometer (FTIR), and N2 adsorption/desorption were used to characterize the MOFs before and after loading NCT. The results showed that NCT@CD-MOF-2 had a better solubability for N-p-t-CT, 145.03 μg/mg of drug loading capacity could be achieved, and the solubility of NCT@CD-MOF-2 in water was 366 times higher than free N-p-t-CT. In addition, the stabilities of N-p-t-CT under temperature, UV light and pH conditions were greatly improved after encapsulation in γ-CD-MOF. Furthermore, NCT@CD-MOFs had a sustained release of N-p-t-CT over an extended period in vitro due to the primary encapsulation in pore structures. Notably, γ-CD-MOF loaded with N-p-t-CT showed superior inhibitory activity against α-glucosidase compared to free N-p-t-CT. Cytotoxicity studies demonstrated that NCT@CD-MOF-2 had low toxicity in vitro and perfect biocompatibility with HL-7702 cells, and γ-CD-MOF could reduce the toxicity of free N-p-t-CT at higher concentrations.","PeriodicalId":15138,"journal":{"name":"Journal of Biomaterials Applications","volume":"268 1","pages":"8853282241284106"},"PeriodicalIF":2.9,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142211115","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Cu/Gd co-doped hydroxyapatite/poly lactic-co-glycolic acid composites enhance MRI imaging and bone defect regeneration. 铜/钆共掺羟基磷灰石/聚乳酸-聚乙醇酸复合材料可增强核磁共振成像和骨缺损再生。
IF 2.3 4区 医学
Journal of Biomaterials Applications Pub Date : 2024-09-08 DOI: 10.1177/08853282241276064
Wei Lu, Xin Xia, Yihang Ma, Hongtao He, Don O Kikkawa, Lu Zhang, Bo Zhang, Xiangji Liu
{"title":"Cu/Gd co-doped hydroxyapatite/poly lactic-co-glycolic acid composites enhance MRI imaging and bone defect regeneration.","authors":"Wei Lu, Xin Xia, Yihang Ma, Hongtao He, Don O Kikkawa, Lu Zhang, Bo Zhang, Xiangji Liu","doi":"10.1177/08853282241276064","DOIUrl":"https://doi.org/10.1177/08853282241276064","url":null,"abstract":"<p><p><b>Background:</b> The hydroxyapatite (HA)/poly(lactide-co-glycolide) acid (PLGA) composite material is a widely used orthopedic implant due to its excellent biocompatibility and plasticity. Recent advancements in cation doping have expanded its potential biological applications. However, conventional HA/PLGA composites are not visible under X-rays post-implantation and have limited osteogenic induction capabilities. Copper (Cu) is known to regulate osteoblast proliferation and differentiation, while gadolinium (Gd) can significantly enhance the magnetic resonance imaging (MRI) capabilities of materials. <b>Methods:</b> This study aimed to investigate whether incorporating Cu and Gd into an HA/PLGA composite could enhance the osteogenic properties, in vivo bone defect repair, and MRI characteristics. We prepared a Cu/Gd@HA/PLGA composite and assessed its performance. <b>Results:</b> Material characterization confirmed that Cu/Gd@HA retained the morphology and crystal structure of HA. The Cu/Gd@HA/PLGA composite exhibited excellent nuclear magnetic imaging capabilities, porosity, and hydrophilicity, which are conducive to cell adhesion and implant detection. In vitro experiments demonstrated that the Cu/Gd@HA/PLGA composite enhanced the proliferation, differentiation, and adhesion of MC3T3-E1 cells, and upregulated COL-1 and BMP-2 expression at both gene and protein levels. In vivo studies showed that the Cu/Gd@HA/PLGA composite maintained strong T1-weighted MRI signals and significantly improved the bone defect healing rate in rats. <b>Conclusion:</b> These findings indicate that the Cu/Gd@HA/PLGA composites significantly enhance T1-weighted MRI capabilities, promote osteoblast proliferation and differentiation in vitro, and accelerate bone defect healing in vivo.</p>","PeriodicalId":15138,"journal":{"name":"Journal of Biomaterials Applications","volume":" ","pages":"8853282241276064"},"PeriodicalIF":2.3,"publicationDate":"2024-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142154081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Development of electrospun electroactive polyurethane membranes for bone repairing. 开发用于骨骼修复的电纺电活性聚氨酯膜。
IF 2.3 4区 医学
Journal of Biomaterials Applications Pub Date : 2024-09-02 DOI: 10.1177/08853282241280771
Fuhua Sun, Lishi Yang, Yi Zuo
{"title":"Development of electrospun electroactive polyurethane membranes for bone repairing.","authors":"Fuhua Sun, Lishi Yang, Yi Zuo","doi":"10.1177/08853282241280771","DOIUrl":"https://doi.org/10.1177/08853282241280771","url":null,"abstract":"<p><p>To fabricate electroactive fibrous membranes and provide simulated bioelectric micro-environment for bone regeneration mimicking nature periosteum, a series of electroactive polyurethanes (PUAT) were synthesized using amino-capped aniline trimers (AT) and lysine derivatives as chain extenders. These PUAT were fabricated into fibrous membranes as guided bone tissue regeneration membranes (GBRMs) via electrospinning. The ultraviolet-visible (UV-vis) absorption spectroscopy and cyclic voltammetry (CV) of PUAT copolymers showed that the electroactive PUAT fibrous membranes had good electroactivity. Besides, the introduction of AT significantly improved the hydrophobicity and thermal stability of PUAT fibrous membranes and decreased the degradation rate of PUAT fibers in vitro. With the increasing content of AT incorporated into copolymers, the tensile strength and Young's modulus of PUAT fibrous membranes increased from 4 MPa (PUAT0) to 15 MPa (PUAT10) and from 2.1 MPa (PUAT0) to 18 MPa (PUAT10), respectively. The cell morphology and proliferation of rat mesenchymal stem cells (rMSCs) on PUAT fibers indicated that the incorporation of AT enhanced the cell attachment and proliferation. Moreover, the expression levels of OCN, CD31, and VEGF secreted by rMSCs on PUAT fibers increased with the increasing content of AT. In conclusion, an electroactive polyurethane fibrous membrane mimicking natural periosteum was prepared via electrospinning and showed good potential application in guiding bone tissue regeneration.</p>","PeriodicalId":15138,"journal":{"name":"Journal of Biomaterials Applications","volume":" ","pages":"8853282241280771"},"PeriodicalIF":2.3,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142119873","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Development of gelatin-methacryloyl composite carriers for bone morphogenetic Protein-2 delivery: A potential strategy for spinal fusion. 开发用于输送骨形态发生蛋白-2 的明胶-甲基丙烯酰复合载体:脊柱融合的潜在策略。
IF 2.3 4区 医学
Journal of Biomaterials Applications Pub Date : 2024-09-01 Epub Date: 2024-06-15 DOI: 10.1177/08853282241258302
Tao Li, Xiaobo Zhang, Yicun Hu, Xidan Gao, Xin Yao, Zhengwei Xu
{"title":"Development of gelatin-methacryloyl composite carriers for bone morphogenetic Protein-2 delivery: A potential strategy for spinal fusion.","authors":"Tao Li, Xiaobo Zhang, Yicun Hu, Xidan Gao, Xin Yao, Zhengwei Xu","doi":"10.1177/08853282241258302","DOIUrl":"10.1177/08853282241258302","url":null,"abstract":"<p><p>To reduce the risk of nonunion after spinal fusion surgery, the in situ transplantation of bone marrow mesenchymal stem cells (BMSCs) induced toward osteogenic differentiation by bone morphogenetic protein-2 (BMP2) has been proven effective. However, the current biological agents used for transplantation have limitations, such as a short half-life and low bioavailability. To address this, our study utilized a safe and effective gelatin-methacryloyl (GelMA) as a carrier for BMP2. In vitro, experiments were conducted to observe the ability of this composite vehicle to induce osteogenic differentiation of BMSCs. The results showed that the GelMA hydrogel, with its critical properties and controlled release performance of BMP2, exhibited a slow release of BMP2 over 30 days. Moreover, the GelMA hydrogel not only enhanced the proliferation activity of BMSCs but also significantly promoted their osteogenic differentiation ability, surpassing the BMP2 effects. To investigate the potential of the GelMA-BMP2 composite vehicle, a rabbit model was employed to explore its ability to induce in situ intervertebral fusion by BMSCs. Transplantation experiments in rabbits demonstrated the effective induction of intervertebral bone fusion by the GelMA-BMP2-BMSC composite vehicle. In conclusion, the GelMA-BMP2-BMSC composite vehicle shows promising prospects in preclinical translational therapy for spinal intervertebral fusion. It addresses the limitations of current biological agents and offers a controlled release of BMP2, enhancing the proliferation and osteogenic differentiation of BMSCs.</p>","PeriodicalId":15138,"journal":{"name":"Journal of Biomaterials Applications","volume":" ","pages":"195-206"},"PeriodicalIF":2.3,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141320935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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