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Maksoud FJ, Velázquez de la Paz MF, Hann AJ, Thanarak J, Reilly GC, Claeyssens F, Green NH, Zhang YS. Porous biomaterials for tissue engineering: a review. J Mater Chem B 2022; 10:8111-8165. [PMID: 36205119 DOI: 10.1039/d1tb02628c] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The field of biomaterials has grown rapidly over the past decades. Within this field, porous biomaterials have played a remarkable role in: (i) enabling the manufacture of complex three-dimensional structures; (ii) recreating mechanical properties close to those of the host tissues; (iii) facilitating interconnected structures for the transport of macromolecules and cells; and (iv) behaving as biocompatible inserts, tailored to either interact or not with the host body. This review outlines a brief history of the development of biomaterials, before discussing current materials proposed for use as porous biomaterials and exploring the state-of-the-art in their manufacture. The wide clinical applications of these materials are extensively discussed, drawing on specific examples of how the porous features of such biomaterials impact their behaviours, as well as the advantages and challenges faced, for each class of the materials.
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Affiliation(s)
- Fouad Junior Maksoud
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA.
| | - María Fernanda Velázquez de la Paz
- Department of Materials Science and Engineering, Kroto Research Building, North Campus, Broad Lane, University of Sheffield, Sheffield, S3 7HQ, UK.
| | - Alice J Hann
- Department of Materials Science and Engineering, Kroto Research Building, North Campus, Broad Lane, University of Sheffield, Sheffield, S3 7HQ, UK.
| | - Jeerawan Thanarak
- Department of Materials Science and Engineering, Kroto Research Building, North Campus, Broad Lane, University of Sheffield, Sheffield, S3 7HQ, UK.
| | - Gwendolen C Reilly
- Department of Materials Science and Engineering, Kroto Research Building, North Campus, Broad Lane, University of Sheffield, Sheffield, S3 7HQ, UK. .,INSIGNEO Institute for in silico Medicine, University of Sheffield, S3 7HQ, UK
| | - Frederik Claeyssens
- Department of Materials Science and Engineering, Kroto Research Building, North Campus, Broad Lane, University of Sheffield, Sheffield, S3 7HQ, UK. .,INSIGNEO Institute for in silico Medicine, University of Sheffield, S3 7HQ, UK
| | - Nicola H Green
- Department of Materials Science and Engineering, Kroto Research Building, North Campus, Broad Lane, University of Sheffield, Sheffield, S3 7HQ, UK. .,INSIGNEO Institute for in silico Medicine, University of Sheffield, S3 7HQ, UK
| | - Yu Shrike Zhang
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA.
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Leite ML, de Oliveira Ribeiro RA, Soares DG, Hebling J, de Souza Costa CA. Poly(Caprolactone)-Aligned Nanofibers Associated with Fibronectin-loaded Collagen Hydrogel as a Potent Bioactive Scaffold for Cell-Free Regenerative Endodontics. Int Endod J 2022; 55:1359-1371. [PMID: 36036876 DOI: 10.1111/iej.13823] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 08/23/2022] [Accepted: 08/24/2022] [Indexed: 11/29/2022]
Abstract
AIM Guided tissue regeneration has been considered a promising strategy to replace conventional endodontic therapy of teeth with incomplete root formation. Therefore, the objective of this study was to develop a tubular scaffold (TB-SC) with poly (caprolactone)-aligned nanofibers associated with a fibronectin-loaded collagen hydrogel and assess the pulp regeneration potential mediated by human apical papilla cells (hAPCs) using an in vitro model of teeth with incomplete root formation. METHODOLOGY Aligned nanofiber strips based on 10% poly(caprolactone) (PCL) were synthesized with the electrospinning technique to produce the TB-SCs. These were submitted to different treatments, according to the following groups: TB-SC (negative control): TB-SC without treatment; TB-SC+FN (positive control): TB-SC coated with 10 μg/mL of fibronectin; TB-SC+H: TB-SC associated with collagen hydrogel; TB-SC+HFN: TB-SC associated with fibronectin-loaded collagen hydrogel. Then, the biomaterials were inserted into cylindrical devices to mimic the regenerative therapy of teeth with incomplete root formation. The hAPCs were seeded on the upper surface of the TB-SCs associated or not with any treatment, and cell migration/proliferation and the gene expression of markers related to pulp regeneration (ITGA5, ITGAV, COL1A1, and COL1A3) were evaluated. The data were submitted to ANOVA/Tukey's tests (α=5 %). RESULTS Higher values of cell migration/proliferation and gene expression of all markers tested were observed in groups TB-SC+FN, TB-SC+H, and TB-SC+HFN compared with the TB-SC group (p<0.05). The hAPCs in the TB-SC+HFN group showed the highest values of cell proliferation and gene expression of COL1A1 and COL3A1 (p<0.05), as well as superior cell migration results to groups TB-SC and TB-SC+H (p<0.05). CONCLUSION Aligned nanofiber scaffolds associated with the fibronectin-loaded collagen hydrogel enhanced the migration and proliferation of hAPCs, and gene expression of pulp regeneration markers. Therefore, the use of these biomaterials may be considered an interesting strategy for regenerative pulp therapy of teeth with incomplete root formation.
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Affiliation(s)
- Maria Luísa Leite
- Department of Oral Health Sciences, Faculty of Dentistry, The University of British Columbia. 2199 Wesbrook Mall, Vancouver, BC, Canada
| | - Rafael Antônio de Oliveira Ribeiro
- Department of Dental Materials and Prosthodontics, Araraquara School of Dentistry, Univ. Estadual Paulista - UNESP. 1680 Humaitá Street, Araraquara, SP, Brazil
| | - Diana Gabriela Soares
- Department of Operative Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo. 9-75 Alameda Dr. Octávio Pinheiro Brisolla Street, Bauru, SP, Brazil
| | - Josimeri Hebling
- Departament of Orthodontics and Pediatric Dentistry, Araraquara School of Dentistry, São Paulo State University (Unesp). 1680 Humaitá Street, Araraquara, SP, Brazil
| | - Carlos Alberto de Souza Costa
- Department of Physiology and Pathology, Araraquara School of Dentistry, São Paulo State University (Unesp). Humaitá Street, 1680, Araraquara, SP, Brazil
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Ogawa N, Imamura T, Minagawa T, Ogawa T, Ishizuka O. Autologous Bilayered Adipose-Derived Mesenchymal Cell-Gelatin Sheets Reconstruct Ureters in Rabbits. Tissue Eng Part A 2022; 28:855-866. [PMID: 35850515 DOI: 10.1089/ten.tea.2022.0087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
Abstract
Repair of ureteral defects or strictures due to disease or trauma is usually dependent upon surgery that often requires either reoperation or an alternative treatment. By taking advantage of tissue engineering and regenerative techniques, it may be possible to define new approaches to ureteral repair. In this study, we fabricated autologous bilayered adipose-derived mesenchymal cell (AMC)-gelatin sheets and transplanted them into rabbits to replace surgically excised ureteral segments. AMCs harvested from abdominal adipose tissues of female New Zealand White rabbits were cultured on collagen-coated dishes and labeled with PKH26, a red fluorescent dye, for later identification. Monolayers of the cultured PKH26-labeled AMCs were detached and applied to gelatin hydrogel sheets. Two gelatin sheets were then united with the AMC monolayers apposed together, forming a bilayered AMC-gelatin sheet. Following each partial ureterectomy, a bilayered autologous AMC-gelatin sheet was transplanted, joining the proximal and distal ends of the remaining the ureter (n=9). Control animals underwent the same procedure except that the transplant was achieved with a bilayered acellular-gelatin sheet (n=9). At 4 and 8 weeks after transplantation, the proximal regions of ureters treated with the control bilayered acellular-gelatin sheets exhibited flexures and dilations, which are not characteristic of unoperated ureters. In contrast, the bilayered AMC-gelatin sheet transplanted rabbits did not have ureteral flexures or dilations. About midway between the proximal and distal ends, both the control and experimental reconstructed ureteral walls had smooth muscle layers; however, those in the experimental reconstructed ureteral walls were significantly thicker and better organized than those in the control reconstructed ureteral walls. Some AMCs differentiated into smooth muscle marker-positive cells. The experimental ureteral walls contained smooth muscle cells derived from the PKH26-labeled AMCs and others that were derived through migration and differentiation of cells from the remaining proximal and distal ends of the original ureter. In addition, the lumina of the 8-week reconstructed ureteral tissues in experimental rabbits did not show histological strictures as seen in the control ureters. These results suggest that the bilayered AMC-gelatin sheets have the potential to replace defective tissues and/or reconstruct damaged ureters.
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Affiliation(s)
- Noriyuki Ogawa
- Shinshu University Graduate School of Medicine School of Medicine, 34808, Department of Urology, 3-1-1, Asahi, Matsumoto, Japan, 390-8621;
| | - Tetsuya Imamura
- Shinshu University Graduate School of Medicine School of Medicine, 34808, Department of Urology, Matsumoto, Nagano, Japan;
| | - Tomonori Minagawa
- Shinshu University Graduate School of Medicine School of Medicine, 34808, Department of Urology, Matsumoto, Nagano, Japan;
| | - Teruyuki Ogawa
- Shinshu University Graduate School of Medicine School of Medicine, 34808, Department of Urology, Matsumoto, Nagano, Japan;
| | - Osamu Ishizuka
- Shinshu University Graduate School of Medicine School of Medicine, 34808, Department of Urology, Matsumoto, Nagano, Japan;
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Ortecho-Zuta U, de Oliveira Duque CC, de Oliveira Ribeiro RA, Leite ML, Soares DG, Hebling J, Briso ALF, de Souza Costa CA. Strategy for reducing cytotoxicity and obtaining esthetic efficacy with 15 min of in-office dental bleaching. Clin Oral Investig 2022; 26:4099-4108. [PMID: 35199193 DOI: 10.1007/s00784-022-04379-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Accepted: 01/13/2022] [Indexed: 11/26/2022]
Abstract
OBJECTIVES Evaluate in vitro the esthetic efficacy and cytotoxicity of a bleaching gel containing 35% hydrogen peroxide (BG-35%H2O2), applied for different time intervals, on enamel coated or not with polymeric biomaterials. MATERIALS AND METHODS Nanofiber scaffolds (NSc) and a primer catalyst (PrCa) were used to coat the bovine enamel/dentin discs before the application of BG-35%H2O2, according to the following groups: G1-negative control (NC, without treatment); G2, G3, and G4-BG-35%H2O2 applied for 3 × 15, 2 × 15, and 15 min; G5, G6, and G7-BG-35%H2O2 applied on enamel coated with NSc and PrCa for 3 × 15; 2 × 15, and 15 min, respectively. The culture medium with components of gel diffused through the discs was applied on MDPC-23 cells, which were evaluated regarding to viability (VB), integrity of the membrane (IM), and oxidative stress (OxS). The quantity of H2O2 diffused and esthetic efficacy (ΔE/ΔWI) of the dental tissues were also analyzed (ANOVA/Tukey; p < 0.05). RESULTS Only G7 was similar to G1 regarding VB (p > 0.05). The lowest value of H2O2 diffusion occurred in G4 and G7, where the cells exhibited the lowest OxS than G2 (p < 0.05). Despite G5 showing the greatest ΔE regarding other groups (p < 0.05), the esthetic efficacy observed in G7 was similar to G2 (p > 0.05). ΔWI indicated a greater bleaching effect for groups G5, G6, and G7 (p < 0.05). CONCLUSION Coating the dental enamel with polymeric biomaterials reduced the time and the cytotoxicity of BG-35%H2O2. CLINICAL SIGNIFICANCE Coating the dental enamel with polymeric biomaterials allows safer and faster BG-35%H2O2 application.
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Affiliation(s)
- Uxua Ortecho-Zuta
- Department of Dental Materials and Prosthodontics, Araraquara School of Dentistry, São Paulo State University (Unesp), Rua Humaitá, 1680, Araraquara, SP, 14801-903, Brazil
| | - Carla Caroline de Oliveira Duque
- Department of Dental Materials and Prosthodontics, Araraquara School of Dentistry, São Paulo State University (Unesp), Rua Humaitá, 1680, Araraquara, SP, 14801-903, Brazil
| | - Rafael Antonio de Oliveira Ribeiro
- Department of Dental Materials and Prosthodontics, Araraquara School of Dentistry, São Paulo State University (Unesp), Rua Humaitá, 1680, Araraquara, SP, 14801-903, Brazil
| | - Maria Luísa Leite
- Department of Dental Materials and Prosthodontics, Araraquara School of Dentistry, São Paulo State University (Unesp), Rua Humaitá, 1680, Araraquara, SP, 14801-903, Brazil
| | - Diana Gabriela Soares
- Department of Operative Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo, Rua Alameda Dr. Octávio Pinheiro Brisolla, 9-75, Bauru, SP, 17012-901, Brazil
| | - Josimeri Hebling
- Departament of Orthodontics and Pediatric Dentistry, Araraquara School of Dentistry, University São Paulo State (Unesp), Rua Humaitá, 1680, Araraquara, SP, 14801-903, Brazil
| | - André Luiz Fraga Briso
- Department of Restorative Dentistry, Araçatuba, School of Dentistry University São Paulo State University (Unesp), Rua José Bonifácio 1193, Vila Mendonça, 16015-050, Brazil
| | - Carlos Alberto de Souza Costa
- Department of Physiology and Pathology, Araraquara School of Dentistry, São Paulo State University (Unesp), Rua Humaitá, Araraquara, SP, 168014801-903, Brazil.
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Anselmi C, Mendes Soares IP, Leite ML, Kitagawa FA, de Souza Costa CA, Hebling J. Cytocompatibility and bioactivity of calcium hydroxide-containing nanofiber scaffolds loaded with fibronectin for dentin tissue engineering. Clin Oral Investig 2022; 26:4031-4047. [PMID: 35029747 DOI: 10.1007/s00784-022-04372-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Accepted: 12/31/2021] [Indexed: 11/25/2022]
Abstract
OBJECTIVES The aim of this study was to characterize polycaprolactone-based nanofiber scaffolds (PCL) incorporated with calcium hydroxide (CH) and evaluate their bioactivity on human dental pulp cells (HDPCs) when loaded with fibronectin (FN). MATERIALS AND METHODS CH (0.1%; 0.2%; 0.4% w/v; or 0%) was incorporated into PCL (10% w/v) scaffolds prepared by electrospinning. Morphology and composition were characterized using SEM/EDS. HDPCs were seeded on the scaffolds and evaluated for viability (alamarBlue; Live/Dead), and adhesion/spreading (F-actin). Next, scaffolds containing 0.4% CH were loaded with FN (20 µg/mL). HDPCs were evaluated for viability, adhesion/spreading, migration (Trans-well), gene expression (RT-qPCR), alkaline phosphatase activity (ALP), and mineralization nodules (Alizarin Red). Data were submitted to ANOVA and post-hoc tests (α = 5%). RESULTS Nanofibers with larger diameter were seen as CH concentration increased, while there was no effect on interfibrillar spaces. An increase in cell viability was seen for 0.4% CH, in all periods. Incorporation of CH and FN into the scaffolds increased cellular migration, spread, and viability, all intensified when CH and FN were combined. ALPL and DSPP expression, and ALP activity were not affected by CH and FN. COL1A1 was downregulated in all groups, while DMP1 was upregulated in the presence of CH, with no differences for the groups loaded with FN. CH increased the formation of mineralized matrix, which was not influenced by FN. CONCLUSIONS In conclusion, the incorporation of CH enhanced the odontogenic potential of HDPCs, irrespective of the presence of FN. The PCL + 0.4% CH formulation may be a useful strategy for use in dentin tissue engineering. CLINICAL RELEVANCE A change in the form of presentation of calcium hydroxide-based materials used for direct pulp capping can increase biocompatibility and prolong the vitality of dental pulp.
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Affiliation(s)
- Caroline Anselmi
- Department of Morphology and Pediatric Dentistry, School of Dentistry, São Paulo State University (UNESP), Araraquara, Brazil
| | - Igor Paulino Mendes Soares
- Department of Dental Materials and Prosthodontics, School of Dentistry, São Paulo State University (UNESP), Araraquara, Brazil
| | - Maria Luísa Leite
- Department of Dental Materials and Prosthodontics, School of Dentistry, São Paulo State University (UNESP), Araraquara, Brazil
| | - Fernanda Ali Kitagawa
- Department of Dental Materials and Prosthodontics, School of Dentistry, São Paulo State University (UNESP), Araraquara, Brazil
| | | | - Josimeri Hebling
- Department of Morphology and Pediatric Dentistry, School of Dentistry, São Paulo State University (UNESP), Araraquara, Brazil.
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Montoya Y, Cardenas J, Bustamante J, Valencia R. Effect of sequential electrospinning and co-electrospinning on morphological and fluid mechanical wall properties of polycaprolactone and bovine gelatin scaffolds, for potential use in small diameter vascular grafts. Biomater Res 2021; 25:38. [PMID: 34801087 PMCID: PMC8605505 DOI: 10.1186/s40824-021-00240-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Accepted: 10/25/2021] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Nowadays, the engineering vascular grafts with a diameter less than 6 mm by means of electrospinning, is an attracted alternative technique to create different three-dimensional microenvironments with appropriate physicochemical properties to promote the nutrient transport and to enable the bioactivity, dynamic growth and differentiation of cells. Although the performance of a well-designed porous wall is key for these functional requirements maintaining the mechanical function, yet predicting the flow rate and cellular transport are still not widely understood and many questions remain open about new configurations of wall can be used for modifying the conventional electrospun samples. The aim of the present study was to evaluate the effect of fabrication techniques on scaffolds composed of bovine gelatin and polycaprolactone (PCL) developed by sequential electrospinning and co-electrospinning, on the morphology and fluid-mechanical properties of the porous wall. METHODOLOGY For this purpose, small diameter tubular structures were manufactured and experimental tests were performed to characterize the crystallinity, morphology, wettability, permeability, degradability, and mechanical properties. Some samples were cross-linked with Glutaraldehyde (GA) to improve the stability of the gelatin fiber. In addition, it was analyzed how the characteristics of the scaffold favored the levels of cell adhesion and proliferation in an in vitro model of 3T3 fibroblasts in incubation periods of 24, 48 and 72 h. RESULTS It was found that in terms of the morphology of tubular scaffolds, the co-electrospun samples had a better alignment with higher values of fiber diameters and apparent pore area than the sequential samples. The static permeability was more significant in the sequential scaffolds and the hydrophilic was higher in the co-electrospun samples. Therefore, the gelatin mass losses were less in the co-electrospun samples, which promote cellular functions. In terms of mechanical properties, no significant differences were observed for different types of samples. CONCLUSION This research concluded that the tubular scaffolds generated by sequential and co-electrospinning with modification in the microarchitecture could be used as a vascular graft, as they have better permeability and wettability, interconnected pores, and a circumferential tensile strength similar to native vessel compared to the commercial graft analyzed.
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Affiliation(s)
- Yuliet Montoya
- Grupo de Dinámica Cardiovascular, Centro de Bioingeniería, Universidad Pontificia Bolivariana, Medellín, Colombia
- Comité de Trabajo de Bioingeniería Cardiovascular, Sociedad Colombiana de Cardiología y Cirugía Cardiovascular, Bogotá, Colombia
| | - José Cardenas
- Grupo de Automática y Diseño A+D, Universidad Pontificia Bolivariana, Medellín, Colombia
- Grupo de Dinámica Cardiovascular, Centro de Bioingeniería, Universidad Pontificia Bolivariana, Medellín, Colombia
| | - John Bustamante
- Grupo de Dinámica Cardiovascular, Centro de Bioingeniería, Universidad Pontificia Bolivariana, Medellín, Colombia
- Comité de Trabajo de Bioingeniería Cardiovascular, Sociedad Colombiana de Cardiología y Cirugía Cardiovascular, Bogotá, Colombia
| | - Raúl Valencia
- Grupo de Automática y Diseño A+D, Universidad Pontificia Bolivariana, Medellín, Colombia.
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Tu H, Dai F, Cheng G, Yuan M, Zhou X, Wang Y, Zhang R, Zheng Y, Cheng Y, Deng H. Incorporation of Layered Rectorite into Biocompatible Core-Sheath Nanofibrous Mats for Sustained Drug Delivery. ACS Biomater Sci Eng 2021; 7:4509-4520. [PMID: 34346208 DOI: 10.1021/acsbiomaterials.1c00638] [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] [Indexed: 02/02/2023]
Abstract
Searching for drug carries with controlled release and good biocompatibility has always been one of the research hotspots and difficulties. Herein, core-sheath nanofibrous mats (NFs) consisting of biocompatible poly(ethylene oxide) (PEO, core) and poly(l-lactic acid) (PLLA, sheath) for drug delivery were fabricated via coaxial electrospinning strategy. The nontoxic layered silicate rectorite (REC) with 0.5-1 wt % amount was introduced in the sheath for sustained drug delivery. Layered REC could be intercalated with PLLA macromolecule chains, leading to the densified structure for loading and keeping doxorubicin hydrochloride (DOX) while reversibly capturing and releasing DOX to delay the drug migration due to its high cation activity. The addition of REC in NFs could delay the initial burst release of DOX and prolong the residence time from 12 to 96 h. Moreover, DOX-loaded core-sheath NFs had in vitro culture with strong antitumor activity, which was confirmed by cytotoxicity results and live and dead assay. HepG2 tumor-bearing xenograft further demonstrated the tumor-suppression effect and the excellent safety of the DOX-loaded core-sheath NFs in vivo. The constructed NFs as drug carriers showed great potential in the local treatment of solid tumors.
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Affiliation(s)
- Hu Tu
- Hubei Key Laboratory of Biomass Resource Chemistry and Environmental Biotechnology, Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, Hubei Engineering Center of Natural Polymers-Based Medical Materials, School of Resource and Environmental Science, Wuhan University, Wuhan 430079, China.,State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan 430200, China
| | - Fangfang Dai
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China
| | - Gu Cheng
- Hubei-MOST KLOS & KLOBME, Department of Oral and Maxillofical Trauma and Plastic Surgery, Wuhan University Stomatological Hospital, Wuhan University, Wuhan 430079, China
| | - Mengqin Yuan
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China
| | - Xue Zhou
- School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Yanqing Wang
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China
| | - Ruquan Zhang
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan 430200, China
| | - Yajing Zheng
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China
| | - Yanxiang Cheng
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China
| | - Hongbing Deng
- Hubei Key Laboratory of Biomass Resource Chemistry and Environmental Biotechnology, Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, Hubei Engineering Center of Natural Polymers-Based Medical Materials, School of Resource and Environmental Science, Wuhan University, Wuhan 430079, China
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Ortecho-Zuta U, de Oliveira Duque CC, de Oliveira Ribeiro RA, Leite ML, Soares DG, Hebling J, Briso ALF, de Souza Costa CA. Polymeric biomaterials maintained the esthetic efficacy and reduced the cytotoxicity of in-office dental bleaching. J ESTHET RESTOR DENT 2021; 33:1139-1149. [PMID: 34251089 DOI: 10.1111/jerd.12805] [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: 03/12/2021] [Revised: 05/24/2021] [Accepted: 06/30/2021] [Indexed: 11/28/2022]
Abstract
Evaluate the kinetics of hydrogen peroxide (H2 O2 ) degradation, esthetic efficacy and cytotoxicity of a bleaching gel with 35%H2 O2 applied on enamel previously covered or not with polymeric nanofibrillar scaffold (SNan), polymeric primer catalyst (PPol), and both. Standardized enamel/dentin discs (n = 128) obtained from bovine teeth were adapted to pulp chambers. After covering enamel with the polymeric products, the bleaching gel was applied for 45 min, establishing the following groups: G1: no treatment (negative control); G2: 35%H2 O2 (positive control); G3: SNan; G4: PPol; G5: SNan + PPol; G6: SNan + 35%H2 O2 ; G7: PPol + 35%H2 O2 ; G8: SNan + PPol + 35%H2 O2 . The kinetics of H2 O2 degradation (n = 8), bleaching efficacy (ΔE/ΔWI; n = 8), trans-amelodentinal cytotoxicity (n = 8), and cell morphology (n = 4) were assessed (ANOVA/Tukey test; p < 0.05). Greater H2 O2 degradation occurred in G7 and G8. Bleaching efficacy (ΔE) was higher in G6, G7, and G8 in comparison with G2 (p < 0.05). However, no difference was observed for ΔWI (p > 0.05). G8 presented the lower level of trans-amelodentinal diffusion of H2 O2 , oxidative stress, and toxicity to the MDPC-23 cells (p < 0.05). Polymeric biomaterials increased the kinetics of H2 O2 decomposition, as well as maintained the esthetic efficacy and minimized the cytotoxicity caused by a bleaching gel with 35%H2 O2 . CLINICAL SIGNIFICANCE: Application of a bleaching gel with 35%H2 O2 on enamel previously covered by polymeric biomaterials maintains the esthetic efficacy and reduces the cytotoxicity caused by a single session of in-office dental bleaching.
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Affiliation(s)
- Uxua Ortecho-Zuta
- Department of Dental Materials and Prosthodontics, School of Dentistry, São Paulo State University (UNESP), Araraquara, Brazil
| | | | | | - Maria Luísa Leite
- Department of Dental Materials and Prosthodontics, School of Dentistry, São Paulo State University (UNESP), Araraquara, Brazil
| | - Diana Gabriela Soares
- Department of Dentistry, Endodontics and Dental Materials, School of Dentistry, São Paulo University (USP), Bauru, Brazil
| | - Josimeri Hebling
- Department of Morphology and Pediatric Dentistry, School of Dentistry, São Paulo State University (UNESP), Araraquara, Brazil
| | - André Luiz Fraga Briso
- Department of Restorative Dentistry, School of Dentistry, São Paulo State University (UNESP), Araçatuba, Brazil
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Zhu T, Gu H, Zhang H, Wang H, Xia H, Mo X, Wu J. Covalent grafting of PEG and heparin improves biological performance of electrospun vascular grafts for carotid artery replacement. Acta Biomater 2021; 119:211-224. [PMID: 33181359 DOI: 10.1016/j.actbio.2020.11.013] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 10/21/2020] [Accepted: 11/05/2020] [Indexed: 12/13/2022]
Abstract
Rapid endothelialization of small-diameter vascular grafts remains a significant challenge in clinical practice. In addition, compliance mismatch causes intimal hyperplasia and finally leads to graft failure. To achieve compliance match and rapid endothelialization, we synthesized low-initial-modulus poly(ester-urethane)urea (PEUU) elastomer and prepared it into electrospun tubular grafts and then functionalized the grafts with poly(ethylene glycol) (PEG) and heparin via covalent grafting. The PEG- and heparin-functionalized PEUU (PEUU@PEG-Hep) graft had comparable mechanical properties with the native blood vessel. In vitro data demonstrated that the grafts are of good cytocompatibility and blood compatibility. Covalent grafting of PEG and heparin significantly promoted the adhesion, spreading, and proliferation of human umbilical vein endothelial cells (HUVECs) and upregulated the expression of vascular endothelial cell-related genes, as well as increased the capability of grafts in preventing platelet deposition. In vivo assessments indicated good biocompatibility of the PEUU@PEG-Hep graft as it did not induce severe immune responses. Replacement of resected carotid artery with the PEUU@PEG-Hep graft in a rabbit model showed that the graft was capable of rapid endothelialization, initiated vascular remodeling, and maintained patency. This study demonstrates the PEUU@PEG-Hep vascular graft with compliance match and efficacious antithrombosis might find opportunities for bioactive blood vessel substitutes.
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Leite ML, Soares DG, Anovazzi G, Mendes Soares IP, Hebling J, de Souza Costa CA. Development of fibronectin-loaded nanofiber scaffolds for guided pulp tissue regeneration. J Biomed Mater Res B Appl Biomater 2020; 109:1244-1258. [PMID: 33381909 DOI: 10.1002/jbm.b.34785] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 09/28/2020] [Accepted: 12/08/2020] [Indexed: 01/26/2023]
Abstract
Fibronectin (FN)-loaded nanofiber scaffolds were developed and assessed concerning their bioactive potential on human apical papilla cells (hAPCs). First, random (NR) and aligned (NA) nanofiber scaffolds of polycaprolactone (PCL) were obtained by electrospinning technique and their biological properties were evaluated. The best formulations of NR and NA were loaded with 0, 5, or 10 μg/ml of FN and their bioactivity was assessed. Finally, FN-loaded NR and NA tubular scaffolds were prepared and their chemotactic potential was analyzed using an in vitro model to mimic the pulp regeneration of teeth with incomplete root formation. All scaffolds tested were cytocompatible. However, NR and NA based on 10% PCL promoted the highest hAPCs proliferation, adhesion and spreading. Polygonal and elongated cells were observed on NR and NA, respectively. The higher the concentration of FN added to the scaffolds, greater cell migration, viability, proliferation, adhesion and spreading, as well as collagen synthesis and gene expression (ITGA5, ITGAV, COL1A1, COL3A1). In addition, tubular scaffolds with NA loaded with FN (10 μg/ml) showed the highest chemotactic potential on hAPCs. It was concluded that FN-loaded NA scaffolds may be an interesting biomaterial to promote hAPCs-mediated pulp regeneration of endodontically compromised teeth with incomplete root formation.
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Affiliation(s)
- Maria Luísa Leite
- Department of Dental Materials and Prosthodontics, Araraquara School of Dentistry, Universidade Estadual Paulista, Araraquara, Brazil
| | - Diana Gabriela Soares
- Department of Operative Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, Sao Paulo University, Bauru, Brazil
| | - Giovana Anovazzi
- Departament of Orthodontics and Pediatric Dentistry, Araraquara School of Dentistry, São Paulo State University, Araraquara, Brazil
| | - Igor Paulino Mendes Soares
- Department of Dental Materials and Prosthodontics, Araraquara School of Dentistry, Universidade Estadual Paulista, Araraquara, Brazil
| | - Josimeri Hebling
- Departament of Orthodontics and Pediatric Dentistry, Araraquara School of Dentistry, São Paulo State University, Araraquara, Brazil
| | - Carlos Alberto de Souza Costa
- Department of Physiology and Pathology, Araraquara School of Dentistry, São Paulo State University, Araraquara, Brazil
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11
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Abdullah MF, Nuge T, Andriyana A, Ang BC, Muhamad F. Core-Shell Fibers: Design, Roles, and Controllable Release Strategies in Tissue Engineering and Drug Delivery. Polymers (Basel) 2019; 11:E2008. [PMID: 31817133 PMCID: PMC6960548 DOI: 10.3390/polym11122008] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 11/30/2019] [Accepted: 12/02/2019] [Indexed: 01/04/2023] Open
Abstract
The key attributes of core-shell fibers are their ability to preserve bioactivity of incorporated-sensitive biomolecules (such as drug, protein, and growth factor) and subsequently control biomolecule release to the targeted microenvironments to achieve therapeutic effects. Such qualities are highly favorable for tissue engineering and drug delivery, and these features are not able to be offered by monolithic fibers. In this review, we begin with an overview on design requirement of core-shell fibers, followed by the summary of recent preparation methods of core-shell fibers, with focus on electrospinning-based techniques and other newly discovered fabrication approaches. We then highlight the importance and roles of core-shell fibers in tissue engineering and drug delivery, accompanied by thorough discussion on controllable release strategies of the incorporated bioactive molecules from the fibers. Ultimately, we touch on core-shell fibers-related challenges and offer perspectives on their future direction towards clinical applications.
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Affiliation(s)
- Muhammad Faiq Abdullah
- Department of Chemical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia;
- School of Bioprocess Engineering, Universiti Malaysia Perlis, Kompleks Pusat Pengajian Jejawi 3, Arau, Perlis 02600, Malaysia
| | - Tamrin Nuge
- Centre of Advanced Materials, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia; (T.N.); (A.A.)
| | - Andri Andriyana
- Centre of Advanced Materials, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia; (T.N.); (A.A.)
- Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Bee Chin Ang
- Department of Chemical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia;
- Centre of Advanced Materials, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia; (T.N.); (A.A.)
| | - Farina Muhamad
- Department of Biomedical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia
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12
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Hu Q, Wu C, Zhang H. Preparation and Optimization of a Biomimetic Triple-Layered Vascular Scaffold Based on Coaxial Electrospinning. Appl Biochem Biotechnol 2019; 190:1106-1123. [PMID: 31705366 DOI: 10.1007/s12010-019-03147-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Accepted: 09/12/2019] [Indexed: 12/28/2022]
Abstract
Electrospinning is a promising method for preparing bionic vascular scaffolds. In particular, coaxial electrospinning can encapsulate polymer materials in biological materials and provide vascular scaffolds with good biomechanical properties. However, it is difficult to produce a stable Taylor cone during the coaxial electrospinning process. Moreover, glutaraldehyde cross-linked natural biomaterials are cytotoxic. To address these issues, a novel electrospinning process is proposed in this report. A non-ionic surfactant (Tween 80) was added to poly(lactic-co-glycolic acid) electrospinning solution and gelatin-collagen electrospinning solution, which prevented the interfacial effect of coaxial electrospinning due to different core/shell solutions. The as-prepared materials were then cross-linked with the non-toxic coupling agents N-(3-dimethylaminopropyl)-N'-ethylcarbodiimide/N-hydroxysuccinimide (EDC/NHS). By comparing the biomechanical properties of EDC/NHS cross-linked vascular scaffold with glutaraldehyde vapor-cross-linked vascular scaffold, it was found that the fracture strain and biological performance of EDC/NHS cross-linked vascular scaffold were better than those of the glutaraldehyde cross-linked scaffold. Finally, a three-layer bionic vascular scaffold was prepared by the proposed electrospinning process. Biomechanical performance tests were carried out and the prepared scaffold was found to meet the requirements of tissue-engineered blood vessels. The research in this paper provides a useful reference for the preparation and optimization of vascular scaffolds.
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Affiliation(s)
- Qingxi Hu
- Rapid Manufacturing Engineering Center, School of Mechatronical Engineering and Automation, Shanghai University, Shanghai, 200444, China.,Shanghai Key Laboratory of Intelligent Manufacturing and Robotics, Shanghai University, Shanghai, 200444, China.,National Demonstration Center for Experimental Engineering Training Education, Shanghai University, Shanghai, 200444, China
| | - Chuang Wu
- Rapid Manufacturing Engineering Center, School of Mechatronical Engineering and Automation, Shanghai University, Shanghai, 200444, China.,National Demonstration Center for Experimental Engineering Training Education, Shanghai University, Shanghai, 200444, China
| | - Haiguang Zhang
- Rapid Manufacturing Engineering Center, School of Mechatronical Engineering and Automation, Shanghai University, Shanghai, 200444, China. .,Shanghai Key Laboratory of Intelligent Manufacturing and Robotics, Shanghai University, Shanghai, 200444, China. .,National Demonstration Center for Experimental Engineering Training Education, Shanghai University, Shanghai, 200444, China.
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13
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Braghirolli DI, Caberlon B, Gamba D, Petry J, Dias ML, Pranke P. Poly(trimethylene carbonate-co-L-lactide) electrospun scaffolds for use as vascular grafts. ACTA ACUST UNITED AC 2019; 52:e8318. [PMID: 31411247 PMCID: PMC6694404 DOI: 10.1590/1414-431x20198318] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Accepted: 05/31/2019] [Indexed: 11/22/2022]
Abstract
Currently, there is great clinical need for suitable synthetic grafts that can be used in vascular diseases. Synthetic grafts have been successfully used in medium and large arteries, however, their use in small diameter vessels is limited and presents a high failure rate. In this context, the aim of this study was to develop tissue engineering scaffolds, using poly(trimethylene carbonate-co-L-lactide) (PTMCLLA), for application as small diameter vascular grafts. For this, copolymers with varying trimethylene carbonate/lactide ratios - 20/80, 30/70, and 40/60 - were submitted to electrospinning and the resulting scaffolds were evaluated in terms of their physicochemical and biological properties. The scaffolds produced with PTMCLLA 20/80, 30/70, and 40/60 showed smooth fibers with an average diameter of 771±273, 606±242, and 697±232 nm, respectively. When the degradation ratio was evaluated, the three scaffold groups had a similar molecular weight (Mw) on the final day of analysis. PTMCLLA 30/70 and 40/60 scaffolds exhibited greater flexibility than the PTMCLLA 20/80. However, the PTMCLLA 40/60 scaffolds showed a large wrinkling and their biological properties were not evaluated. The PTMCLLA 30/70 scaffolds supported the adhesion and growth of mesenchymal stem cells (MSCs), endothelial progenitor cells, and smooth muscle cells (SMCs). In addition, they provided a spreading of MSCs and SMCs. Given the results, the electrospun scaffolds produced with PTMCLLA 30/70 copolymer can be considered promising candidates for future applications in vascular tissue engineering.
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Affiliation(s)
- D I Braghirolli
- Laboratório de Hematologia e Células-tronco, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil.,Programa de Pós-Graduação em Fisiologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil
| | - B Caberlon
- Laboratório de Hematologia e Células-tronco, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil
| | - D Gamba
- Instituto de Química, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil
| | - Jftc Petry
- Instituto de Química, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil
| | - M L Dias
- Instituto de Macromoléculas Professora Eloisa Mano (IMA), Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brasil
| | - P Pranke
- Laboratório de Hematologia e Células-tronco, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil.,Programa de Pós-Graduação em Fisiologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil.,Instituto de Pesquisa com Células-tronco, Porto Alegre, RS, Brasil
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14
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Li W, Yu Q, Yao H, Zhu Y, Topham PD, Yue K, Ren L, Wang L. Superhydrophobic hierarchical fiber/bead composite membranes for efficient treatment of burns. Acta Biomater 2019; 92:60-70. [PMID: 31096044 DOI: 10.1016/j.actbio.2019.05.025] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 04/14/2019] [Accepted: 05/09/2019] [Indexed: 01/16/2023]
Abstract
One of the current challenges in burn wound care is the development of multifunctional dressings that can protect the wound from bacteria or organisms and promote skin regeneration and tissue reconstitution. To this end, we report the design and fabrication of a composite electrospun membrane, comprised of electrospun polylactide: poly(vinyl pyrrolidone)/polylactide: poly(ethylene glycol) (PLA:PVP/PLA:PEG) core/shell fibers loaded with bioactive agents, as a functionally integrated wound dressing for efficient burns treatment. Different mass ratios of PLA:PVP in the shell were screened to optimize mechanical, physicochemical, and biological properties, in addition to controlled release profiles of loaded antimicrobial peptides (AMPs) from the fibers for desirable antibacterial activity. Fibroblasts were shown to readily adhere and proliferate when cultured on the membrane, indicating good in vitro cytocompatibility. The introduction of PLA beads by electrospraying on one side of the membrane resulted in biomimetic micro-nanostructures similar to those of lotus leaves. This designer structure rendered the composite membranes with superhydrophobic property to inhibit the adhesion/spreading of exogenous bacteria and other microbes. The administration of the resulting composite fibrous membrane on burnt skin in an infected rat model led to faster healing than a conventional product (sterile silicone membrane) and control detailed herein. These composite fibrous membranes loaded with bioactive drugs provide an integrated strategy for promoting burn wound healing and skin regeneration. STATEMENT OF SIGNIFICANCE: To address an urgent need in complex clinical requirements on developing a new generation of wound dressings with integrated functionalities. This article reports research work on a hierarchical fiber/bead composite membranes design, which combines a lotus-leaf-like superhydrophobic surface with drugs preloaded in the core and shell of fibers for effective burn treatment. This demonstrates a balance between simplified preparation processes and increased multifunctionality of the wound dressings. The creation of hierarchically structured surfaces can be readily achieved by electrospinning, and the composite dressings possessed a considerable mechanical strength, effective wound exudate absorption and permeability, good biocompatibility, broad antibacterial ability and promoting wound healing etc. Thus, our work unveils a promising strategy for the development of functionally integrated wound dressings for burn wound care.
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Affiliation(s)
- Weichang Li
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 510640, China; State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China
| | - Qianqian Yu
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Hang Yao
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225009, China; National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou 510006, China
| | - Yue Zhu
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Paul D Topham
- Aston Institute of Materials Research, Aston University, Birmingham B4 7ET, UK
| | - Kan Yue
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 510640, China; State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China
| | - Li Ren
- National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou 510006, China.
| | - Linge Wang
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 510640, China; State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China.
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15
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Ambekar RS, Kandasubramanian B. Progress in the Advancement of Porous Biopolymer Scaffold: Tissue Engineering Application. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.8b05334] [Citation(s) in RCA: 89] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Rushikesh S. Ambekar
- Rapid Prototype & Electrospinning Lab, Department of Metallurgical and Materials Engineering, DIAT (DU), Ministry of Defence, Girinagar, Pune 411025, India
| | - Balasubramanian Kandasubramanian
- Rapid Prototype & Electrospinning Lab, Department of Metallurgical and Materials Engineering, DIAT (DU), Ministry of Defence, Girinagar, Pune 411025, India
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16
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Ding J, Zhang J, Li J, Li D, Xiao C, Xiao H, Yang H, Zhuang X, Chen X. Electrospun polymer biomaterials. Prog Polym Sci 2019. [DOI: 10.1016/j.progpolymsci.2019.01.002] [Citation(s) in RCA: 217] [Impact Index Per Article: 43.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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17
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Recent Advances in Nanocomposites Based on Aliphatic Polyesters: Design, Synthesis, and Applications in Regenerative Medicine. APPLIED SCIENCES-BASEL 2018. [DOI: 10.3390/app8091452] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
In the last decade, biopolymer matrices reinforced with nanofillers have attracted great research efforts thanks to the synergistic characteristics derived from the combination of these two components. In this framework, this review focuses on the fundamental principles and recent progress in the field of aliphatic polyester-based nanocomposites for regenerative medicine applications. Traditional and emerging polymer nanocomposites are described in terms of polymer matrix properties and synthesis methods, used nanofillers, and nanocomposite processing and properties. Special attention has been paid to the most recent nanocomposite systems developed by combining alternative copolymerization strategies with specific nanoparticles. Thermal, electrical, biodegradation, and surface properties have been illustrated and correlated with the nanoparticle kind, content, and shape. Finally, cell-polymer (nanocomposite) interactions have been described by reviewing analysis methodologies such as primary and stem cell viability, adhesion, morphology, and differentiation processes.
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18
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Prediction of circumferential compliance and burst strength of polymeric vascular grafts. J Mech Behav Biomed Mater 2018; 79:332-340. [DOI: 10.1016/j.jmbbm.2017.12.031] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 12/21/2017] [Accepted: 12/29/2017] [Indexed: 11/18/2022]
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19
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Camarero-Espinosa S, Stefani I, Cooper-White J. Hierarchical "As-Electrospun" Self-Assembled Fibrous Scaffolds Deconvolute Impacts of Chemically Defined Extracellular Matrix- and Cell Adhesion-Type Interactions on Stem Cell Haptokinesis. ACS Macro Lett 2017; 6:1420-1425. [PMID: 35650805 DOI: 10.1021/acsmacrolett.7b00834] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Controlled self-assembly of diblock copolymers offers the possibility of fabricating multilength scale, three-dimensional (3D) porous/fibrous structures (or scaffolds) with defined internal nano- or microstructure, with opportunities for application in a variety of fields, ranging from energy storage to bioengineering. Traditional methods by which such 3D constructs are produced are time-consuming and tedious, hindering their broader exploitation within larger-scale industrial processes. We report the development of a one-step process to fabricate "as-electrospun" self-assembled diblock copolymer micro- to nanometer-sized fibers incorporating core-shell or lamellar, closely packed spheres or bicontinuous gyroid nanosized structures. Isotropic and anisotropic (aligned) porous mats presenting spatially controlled chemistries, including bioactive (peptide-based) motifs, were successfully made from these hierarchical fibers. When functionalized with peptide sequences derived from a cell adhesion molecule (E-cadherin) and an extracellular matrix glycoprotein (laminin), these novel materials provided new insight into the impacts of such exquisitely tailored contact-guidance cues on the haptokinesis of human mesenchymal stem cells.
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Affiliation(s)
- Sandra Camarero-Espinosa
- Australian Institute for Bioengineering and Nanotechnology (AIBN), Cnr College Rd & Cooper Rd, Building 75, Brisbane, Queensland 4072, Australia
| | - Ilaria Stefani
- Australian Institute for Bioengineering and Nanotechnology (AIBN), Cnr College Rd & Cooper Rd, Building 75, Brisbane, Queensland 4072, Australia
| | - Justin Cooper-White
- Australian Institute for Bioengineering and Nanotechnology (AIBN), Cnr College Rd & Cooper Rd, Building 75, Brisbane, Queensland 4072, Australia
- University of Queensland, School of Chemical Engineering, Brisbane, Queensland, Australia
- Commonwealth Scientific & Industrial Research Organisation (CSIRO), Manufacturing Flagship, Clayton, Vic 3168, Australia
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20
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Alternating air-medium exposure in rotating bioreactors optimizes cell metabolism in 3D novel tubular scaffold polyurethane foams. J Appl Biomater Funct Mater 2017; 15:e122-e132. [PMID: 28362040 PMCID: PMC6379885 DOI: 10.5301/jabfm.5000334] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/07/2016] [Indexed: 01/15/2023] Open
Abstract
Background In vitro dynamic culture conditions play a pivotal role in developing
engineered tissue grafts, where the supply of oxygen and nutrients, and
waste removal must be permitted within construct thickness. For tubular
scaffolds, mass transfer is enhanced by introducing a convective flow
through rotating bioreactors with positive effects on cell proliferation,
scaffold colonization and extracellular matrix deposition. We characterized
a novel polyurethane-based tubular scaffold and investigated the impact of 3
different culture configurations over cell behavior: dynamic (i)
single-phase (medium) rotation and (ii) double-phase exposure (medium-air)
rotation; static (iii) single-phase static culture as control. Methods A new mixture of polyol was tested to create polyurethane foams (PUFs) as 3D
scaffold for tissue engineering. The structure obtained was morphologically
and mechanically analyzed tested. Murine fibroblasts were externally seeded
on the novel porous PUF scaffold, and cultured under different dynamic
conditions. Viability assay, DNA quantification, SEM and histological
analyses were performed at different time points. Results The PUF scaffold presented interesting mechanical properties and morphology
adequate to promote cell adhesion, highlighting its potential for tissue
engineering purposes. Results showed that constructs under dynamic
conditions contain enhanced viability and cell number, exponentially
increased for double-phase rotation; under this last configuration, cells
uniformly covered both the external surface and the lumen. Conclusions The developed 3D structure combined with the alternated exposure to air and
medium provided the optimal in vitro biochemical conditioning with adequate
nutrient supply for cells. The results highlight a valuable combination of
material and dynamic culture for tissue engineering applications.
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Stefani I, Asnaghi M, Cooper-White J, Mantero S. A double chamber rotating bioreactor for enhanced tubular tissue generation from human mesenchymal stem cells: a promising tool for vascular tissue regeneration. J Tissue Eng Regen Med 2017; 12:e42-e52. [DOI: 10.1002/term.2341] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Revised: 08/18/2016] [Accepted: 10/20/2016] [Indexed: 12/26/2022]
Affiliation(s)
- I. Stefani
- Giulio Natta Department of Chemistry, Materials, and Chemical Engineering; Politecnico di Milano; Milan 20133 Italy
- Australian Institute for Bioengineering and Nanotechnology; The University of Queensland; Brisbane QLD 4072 Australia
| | - M.A. Asnaghi
- Giulio Natta Department of Chemistry, Materials, and Chemical Engineering; Politecnico di Milano; Milan 20133 Italy
- Departments of Surgery and of Biomedicine; University Hospital Basel, University of Basel; Basel 4031 Switzerland
| | - J.J. Cooper-White
- Australian Institute for Bioengineering and Nanotechnology; The University of Queensland; Brisbane QLD 4072 Australia
- School of Chemical Engineering; The University of Queensland; QLD 4072 Australia
- Biomedical Manufacturing, Manufacturing Flagship, CSIRO; Clayton VIC 3169 Australia
| | - S. Mantero
- Giulio Natta Department of Chemistry, Materials, and Chemical Engineering; Politecnico di Milano; Milan 20133 Italy
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22
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Liu M, Duan XP, Li YM, Yang DP, Long YZ. Electrospun nanofibers for wound healing. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 76:1413-1423. [PMID: 28482508 DOI: 10.1016/j.msec.2017.03.034] [Citation(s) in RCA: 227] [Impact Index Per Article: 32.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2017] [Accepted: 03/04/2017] [Indexed: 12/22/2022]
Abstract
Electrospinning has been widely used as a nanofiber fabrication technique. Its simple process, cost effectiveness and versatility have appealed to materials scientists globally. Pristine polymeric nanofibers or composite nanofibers with dissimilar morphologies and multidimensional assemblies ranging from one dimension (1D) to three dimensions (3D) can be obtained from electrospinning. Critically, these as-prepared nanofibers possessing high surface area to volume ratio, tunable porosity and facile surface functionalization present numerous possibilities for applications, particularly in biomedical field. This review gives us an overview of some recent advances of electrospinning-based nanomaterials in biomedical applications such as antibacterial mats, patches for rapid hemostasis, wound dressings, drug delivery systems, as well as tissue engineering. We further highlight the current challenges and future perspectives of electrospinning-based nanomaterials in the field of biomedicine.
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Affiliation(s)
- Minghuan Liu
- College of Chemical Engineering & Materials Science, Quanzhou Normal University, Quanzhou, China
| | - Xiao-Peng Duan
- College of Chemical Engineering & Materials Science, Quanzhou Normal University, Quanzhou, China; Collaborative Innovation Center for Nanomaterials & Optoelectronic Devices, College of Physics, Qingdao University, Qingdao 266071, China
| | - Ye-Ming Li
- Collaborative Innovation Center for Nanomaterials & Optoelectronic Devices, College of Physics, Qingdao University, Qingdao 266071, China
| | - Da-Peng Yang
- College of Chemical Engineering & Materials Science, Quanzhou Normal University, Quanzhou, China.
| | - Yun-Ze Long
- College of Chemical Engineering & Materials Science, Quanzhou Normal University, Quanzhou, China; Collaborative Innovation Center for Nanomaterials & Optoelectronic Devices, College of Physics, Qingdao University, Qingdao 266071, China.
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23
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Cork J, Whittaker AK, Cooper-White JJ, Grøndahl L. Electrospinning and mechanical properties of P(TMC-co-LLA) elastomers. J Mater Chem B 2017; 5:2263-2272. [DOI: 10.1039/c7tb00137a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
P(TMC-co-LLA) elastomers have shown great potential for various biomaterial and tissue engineering applications.
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Affiliation(s)
- Jorja Cork
- School of Chemistry and Molecular Biosciences
- University of Queensland
- Brisbane
- Australia
- The Australian Institute for Bioengineering and Nanotechnology
| | - Andrew K. Whittaker
- The Australian Institute for Bioengineering and Nanotechnology
- University of Queensland
- Brisbane
- Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology
| | - Justin J. Cooper-White
- The Australian Institute for Bioengineering and Nanotechnology
- University of Queensland
- Brisbane
- Australia
- School of Chemical Engineering
| | - Lisbeth Grøndahl
- School of Chemistry and Molecular Biosciences
- University of Queensland
- Brisbane
- Australia
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24
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Jiang YC, Jiang L, Huang A, Wang XF, Li Q, Turng LS. Electrospun polycaprolactone/gelatin composites with enhanced cell-matrix interactions as blood vessel endothelial layer scaffolds. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 71:901-908. [PMID: 27987787 DOI: 10.1016/j.msec.2016.10.083] [Citation(s) in RCA: 90] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Revised: 10/19/2016] [Accepted: 10/30/2016] [Indexed: 01/24/2023]
Abstract
During the fabrication of tissue engineering scaffolds and subsequent tissue regeneration, surface bioactivity is vital for cell adhesion, spreading, and proliferation, especially for endothelium dysfunction repair. In this paper, synthetic polymer polycaprolactone (PCL) was blended with natural polymer gelatin at four different weight ratios followed by crosslinking (i.e., 100:0, 70:30, 50:50, 30:70, labeled as PCL-C, P7G3-C, P5G5-C, and P3G7-C) to impart enhanced bioactivity and tunable mechanical properties. The PCL/gelatin blends were first dissolved in 2,2,2-trifluroethanol (TFE) and supplementary acetic acid (1% relative to TFE) solvent, electrospun, and then cross-linked to produce PBS-proof fibrous scaffolds. Scanning electron micrographs (SEM) indicated that fibers of each sample were smooth and homogeneous, with the fiber diameters increasing from 1.01±0.51μm to 1.61±0.46μm as the content of gelatin increased. While thermal resistance and crystallization of the blends were affected by the presence of gelatin, as reflected by differential scanning calorimetry (DSC) results, water contact angle (WCA) tests confirmed that the scaffold surfaces became more hydrophilic. Tensile tests showed that PCL-C and P7G3-C scaffolds had mechanical properties comparable to those of human coronary arteries. As for cytocompatibility, skeleton staining images showed that human mesenchymal stem cells (hMSCs) had more favorable binding sites on PCL/gelatin scaffolds than those on PCL scaffolds. Cell proliferation assays revealed that P7G3-C scaffolds could support the most number of hMSCs. The results of this study demonstrated the enhanced cell-matrix interactions and potential use of electrospun PCL/gelatin scaffolds in the tissue engineering field, especially in wound dressings and endothelium regeneration.
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Affiliation(s)
- Yong-Chao Jiang
- National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou, China; School of Mechanics and Engineering Science, Zhengzhou University, Zhengzhou, China; Department of Mechanical Engineering, University of Wisconsin-Madison, WI, USA; Wisconsin Institute for Discovery, University of Wisconsin-Madison, WI, USA
| | - Lin Jiang
- National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou, China; Department of Mechanical Engineering, University of Wisconsin-Madison, WI, USA; Wisconsin Institute for Discovery, University of Wisconsin-Madison, WI, USA
| | - An Huang
- South China University of Technology, Guangzhou, China; Department of Mechanical Engineering, University of Wisconsin-Madison, WI, USA; Wisconsin Institute for Discovery, University of Wisconsin-Madison, WI, USA
| | - Xiao-Feng Wang
- National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou, China; School of Mechanics and Engineering Science, Zhengzhou University, Zhengzhou, China
| | - Qian Li
- National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou, China
| | - Lih-Sheng Turng
- Department of Mechanical Engineering, University of Wisconsin-Madison, WI, USA; Wisconsin Institute for Discovery, University of Wisconsin-Madison, WI, USA.
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25
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Surface modification of electrospun fibres for biomedical applications: A focus on radical polymerization methods. Biomaterials 2016; 106:24-45. [DOI: 10.1016/j.biomaterials.2016.08.011] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Revised: 08/05/2016] [Accepted: 08/08/2016] [Indexed: 12/18/2022]
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26
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Mallone A, Weber B, Hoerstrup SP. Cardiovascular Regenerative Technologies: Update and Future Outlook. Transfus Med Hemother 2016; 43:291-296. [PMID: 27721705 DOI: 10.1159/000447749] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Accepted: 06/21/2016] [Indexed: 12/20/2022] Open
Abstract
In the effort of improving treatment for cardiovascular disease (CVD), scientists struggle with the lack of the regenerative capacities of finally differentiated cardiovascular tissues. In this context, the advancements in regenerative medicine contributed to the development of cell-based therapies as well as macro- and micro-scale tissue-engineering technologies. The current experimental approaches focus on different regenerative strategies including a broad spectrum of techniques such as paracrine-based stimulation of autologous cardiac stem cells, mesenchymal cell injections, 3D microtissue culture techniques and vascular tissue-engineering methods. These potential next-generation strategies are leading the way to a revolution in addressing CVD, and numerous studies are now undertaken to assess their therapeutic value. With this review, we provide an update on the current research directions, on their major challenges, limitations, and achievements.
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Affiliation(s)
- Anna Mallone
- Institute for Regenerative Medicine, University of Zurich, Schlieren, Switzerland
| | - Benedikt Weber
- Institute for Regenerative Medicine, University of Zurich, Schlieren, Switzerland
| | - Simon P Hoerstrup
- Institute for Regenerative Medicine, University of Zurich, Schlieren, Switzerland
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Shen H, Hu X, Cui H, Zhuang Y, Huang D, Yang F, Wang X, Wang S, Wu D. Fabrication and effect on regulating vSMC phenotype of a biomimetic tunica media scaffold. J Mater Chem B 2016; 4:7689-7696. [DOI: 10.1039/c6tb02437h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
We constructed a bFGF@TGF-β1 loaded porous film-like PLGA scaffold with dual surface topography of nanofiber and micro-orientation structures for regulating the phenotype of vascular smooth muscle cell (vSMC).
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Affiliation(s)
- Hong Shen
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Polymer Physics and Chemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Xixue Hu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety
- National Center for Nanoscience and Technology
- Beijing 100190
- China
| | - Haiyan Cui
- Ninth People's Hospital
- School of Medicine
- Shanghai Jiao Tong University
- Shanghai 200011
- China
| | - Yaping Zhuang
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Polymer Physics and Chemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Da Huang
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Polymer Physics and Chemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Fei Yang
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Polymer Physics and Chemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Xing Wang
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Polymer Physics and Chemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Shenguo Wang
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Polymer Physics and Chemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Decheng Wu
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Polymer Physics and Chemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
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