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Jana S. Endothelialization of cardiovascular devices. Acta Biomater 2019; 99:53-71. [PMID: 31454565 DOI: 10.1016/j.actbio.2019.08.042] [Citation(s) in RCA: 74] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 07/19/2019] [Accepted: 08/22/2019] [Indexed: 01/10/2023]
Abstract
Blood-contacting surfaces of cardiovascular devices are not biocompatible for creating an endothelial layer on them. Numerous research studies have mainly sought to modify these surfaces through physical, chemical and biological means to ease early endothelial cell (EC) adhesion, migration and proliferation, and eventually to build an endothelial layer on the surfaces. The first priority for surface modification is inhibition of protein adsorption that leads to inhibition of platelet adhesion to the device surfaces, which may favor EC adhesion. Surface modification through surface texturing, if applicable, can bring some hopeful outcomes in this regard. Surface modifications through chemical and/or biological means may play a significant role in easy endothelialization of cardiovascular devices and inhibit smooth muscle cell proliferation. Cellular engineering of cells relevant to endothelialization can boost the positive outcomes obtained through surface engineering. This review briefly summarizes recent developments and research in early endothelialization of cardiovascular devices. STATEMENT OF SIGNIFICANCE: Endothelialization of cardiovascular implants, including heart valves, vascular stents and vascular grafts is crucial to solve many problems in our health care system. Numerous research efforts have been made to improve endothelialization on the surfaces of cardiovascular implants, mainly through surface modifications in three ways - physically, chemically and biologically. This review is intended to highlight comprehensive research studies to date on surface modifications aiming for early endothelialization on the blood-contacting surfaces of cardiovascular implants. It also discusses future perspectives to help guide endothelialization strategies and inspire further innovations.
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Affiliation(s)
- Soumen Jana
- Department of Bioengineering, University of Missouri, Columbia, MO 65211, USA.
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Ma K, Rozet S, Tamada Y, Yao J, Ni QQ. Multi-layer nanofibrous tubes with dual drug-release profiles for vascular graft engineering. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2019.01.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Sun Y, You Y, Jiang W, Zhai Z, Dai K. 3D-bioprinting a genetically inspired cartilage scaffold with GDF5-conjugated BMSC-laden hydrogel and polymer for cartilage repair. Theranostics 2019; 9:6949-6961. [PMID: 31660079 PMCID: PMC6815949 DOI: 10.7150/thno.38061] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Accepted: 08/06/2019] [Indexed: 02/07/2023] Open
Abstract
Rationale: Articular cartilage injury is extremely common in congenital joint dysplasia patients. Genetic studies have identified Growth differentiation factor 5 (GDF5) as a shared gene in joint dysplasia and OA progression across different populations. However, few studies have employed GDF5 in biological regeneration for articular cartilage repair. Methods & Results: In the present study, we report identified genetic association between GDF5 loci and hip joint dysplasia with genome-wide association study (GWAS). GWAS and replication studies in separate populations achieved significant signals for GDF5 loci. GDF5 expression was dysregulated with allelic differences in hip cartilage of DDH and upregulated in the repaired cartilage in a rabbit cartilage defect model. GDF5 in vitro enhanced chondrogenesis and migration of bone marrow stem cells (BMSCs), GDF5 was tested in ectopic cartilage generation with BMSCs by GDF5 in nude mice in vivo. Genetically inspired, we further generated functional knee articular cartilage construct for cartilage repair by 3d-bioprinting a GDF5-conjugated BMSC-laden scaffold. GDF5-conjugated scaffold showed better cartilage repairing effects compared to control. Meanwhile, transplantation of the 3D-bioprinted GDF5-conjugated BMSC-laden scaffold in rabbit knees conferred long-term chondroprotection. Conclusions: In conclusion, we report identified genetic association between GDF5 and DDH with combined GWAS and replications, which further inspired us to generate a ready-to-implant GDF5-conjugated BMSC-laden scaffold with one-step 3d-bioprinting for cartilage repair.
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Świętek M, Brož A, Tarasiuk J, Wroński S, Tokarz W, Kozieł A, Błażewicz M, Bačáková L. Carbon nanotube/iron oxide hybrid particles and their PCL-based 3D composites for potential bone regeneration. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 104:109913. [PMID: 31499964 DOI: 10.1016/j.msec.2019.109913] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2019] [Revised: 06/20/2019] [Accepted: 06/22/2019] [Indexed: 01/21/2023]
Abstract
This study describes the preparation, and evaluates the biocompatibility, of hydroxylated multi-walled carbon nanotubes (fCNTs) functionalized with magnetic iron oxide nanoparticles (IONs) creating hybrid nanoparticles. These nanoparticles were used for preparing a composite porous poly(ε-caprolactone) scaffolds for potential utilization in regenerative medicine. Hybrid fCNT/ION nanoparticles were prepared in two mass ratios - 1:1 (H1) and 1:4 (H4). PCL scaffolds were prepared with various concentrations of the nanoparticles with fixed mass either of the whole nanoparticle hybrid or only of the fCNTs. The hybrid particles were evaluated in terms of morphology, composition and magnetic properties. The cytotoxicity of the hybrid nanoparticles and the pure fCNTs was assessed by exposing the SAOS-2 human cell line to colloids with a concentration range from 0.01 to 1 mg/ml. The results indicate a gradual increase in the cytotoxicity effect with increasing concentration. At low concentrations, interestingly, SAOS-2 metabolic activity was stimulated by the presence of IONs. The PCL scaffolds were characterized in terms of the scaffold architecture, the dispersion of the nanoparticles within the polymer matrix, and subsequently in terms of their thermal, mechanical and magnetic properties. A higher ION content was associated with the presence of larger agglomerates of particles. With exception of the scaffold with the highest content of the H4 nanoparticle hybrid, all composites were superparamagnetic. In vitro tests indicate that both components of the hybrid nanoparticles may have a positive impact on the behavior of SAOS-2 cells cultivated on the PCL composite scaffolds. The presence of fCNTs up to 1 wt% improved the cell attachment to the scaffolds, and a content of IONs below 1 wt% increased the cell metabolic activity.
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Affiliation(s)
- Małgorzata Świętek
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 06 Prague, Czech Republic; AGH University of Science and Technology, Faculty of Materials Science and Ceramics, Mickiewicza 30, 30-059 Krakow, Poland
| | - Antonín Brož
- Institute of Physiology, Czech Academy of Sciences, Vídeňská 1083, 142 20 Prague, Czech Republic.
| | - Jacek Tarasiuk
- AGH University of Science and Technology, Faculty of Physics and Applied Computer Science, Mickiewicza 30, 30-59 Krakow, Poland
| | - Sebastian Wroński
- AGH University of Science and Technology, Faculty of Physics and Applied Computer Science, Mickiewicza 30, 30-59 Krakow, Poland
| | - Waldemar Tokarz
- AGH University of Science and Technology, Faculty of Physics and Applied Computer Science, Mickiewicza 30, 30-59 Krakow, Poland
| | - Agata Kozieł
- AGH University of Science and Technology, Faculty of Materials Science and Ceramics, Mickiewicza 30, 30-059 Krakow, Poland
| | - Marta Błażewicz
- AGH University of Science and Technology, Faculty of Materials Science and Ceramics, Mickiewicza 30, 30-059 Krakow, Poland
| | - Lucie Bačáková
- Institute of Physiology, Czech Academy of Sciences, Vídeňská 1083, 142 20 Prague, Czech Republic
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Kim TH, Lee JH, Ahn CB, Hong JH, Son KH, Lee JW. Development of a 3D-Printed Drug-Eluting Stent for Treating Obstructive Salivary Gland Disease. ACS Biomater Sci Eng 2019; 5:3572-3581. [PMID: 33405739 DOI: 10.1021/acsbiomaterials.9b00636] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Most studies of obstructive salivary gland disease have reported only statistical aspects, surgical operations, and prescriptions and have simulated the phenomena occurring in the salivary glands and ductal tissues. However, no direct lesion treatments involving drug-eluting stents have been used to reduce salivary pooling induced by inflammation. In this study, a biodegradable polymer polycaprolactone (PCL)-based antibiotic-eluting stent was developed to treat recurrent obstructive salivary gland disease. The structure's diameter was designed after consideration of the human anatomical structure, and the data were processed in a form suitable for three-dimensional (3D) printing via computer-aided design and manufacturing. After the proper mixing conditions of the antibiotics and PCL were ensured, the optimized printing conditions were secured and the stent was successfully printed with the original lumen size diameter maintained. Amoxicillin and cefotaxime, the antibiotics loaded in this study, did not lose their original antimicrobial activity under the 3D printing process and were effectively released from the constructs for verification of the antimicrobial activity against the causative bacteria according to their concentrations. In addition, antibiotic-eluting stents fabricated in a mesh-like network form were proven stable and capable of sustained release, thereby demonstrating the possibility of treating recurrent obstruction salivary gland disease.
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Affiliation(s)
| | | | | | | | - Kuk Hui Son
- Department of Thoracic and Cardiovascular Surgery, Gachon University Gil Medical Center, College of Medicine, Gachon University, 21, Namdong-daero 774 Beon-gil, Namdong-gu, Incheon, 21565, Republic of Korea
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Janićijević Ž, Ninkov M, Kataranovski M, Radovanović F. Poly(DL-Lactide-co-ε-Caprolactone)/Poly(Acrylic Acid) Composite Implant for Controlled Delivery of Cationic Drugs. Macromol Biosci 2018; 19:e1800322. [PMID: 30548776 DOI: 10.1002/mabi.201800322] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Revised: 11/02/2018] [Indexed: 11/09/2022]
Abstract
Poly(DL-lactide-co-ε-caprolactone)/poly(acrylic acid) implantable composite reservoirs for cationic drugs are synthesized by sequentially applying photoirradiation and liquid phase inversion. The chemical composition and microstructure of reservoirs are characterized with Fourier transform infrared spectroscopy-attenuated total reflection (FTIR-ATR) and scanning electron microscopy (SEM), respectively. Drug loading and release properties are investigated using methylene blue as the drug model. Biocompatibility of reservoirs is examined through a series of in vitro tests and an in vivo experiment of subcutaneous implantation in Dark Agouti rats. Reservoirs show good ion-exchange capacity, high water content, and fast reversible swelling with retained geometry. Results of drug loading and release reveal excellent loading efficiency and diffusion-controlled release during 2 weeks. Biocompatibility tests in vitro demonstrate the lack of implant proinflammatory potential and hindered adhesion of L929 cells on the implant surface. Implants exhibit low acute toxicity and elicit a normal acute foreign body reaction that reaches the early stages of fibrous capsule formation after 7 days.
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Affiliation(s)
- Željko Janićijević
- University of Belgrade, School of Electrical Engineering, Bulevar kralja Aleksandra 73, 11120, Belgrade, Serbia.,Institute of Technical Sciences of the Serbian Academy of Sciences and Arts, Knez Mihailova 35/IV, 11000, Belgrade, Serbia
| | - Marina Ninkov
- Department of Ecology, Institute for Biological Research "Siniša Stanković", University of Belgrade, Bulevar despota Stefana 142, 11060, Belgrade, Serbia
| | - Milena Kataranovski
- Department of Ecology, Institute for Biological Research "Siniša Stanković", University of Belgrade, Bulevar despota Stefana 142, 11060, Belgrade, Serbia.,Department of Physiology and Biochemistry, University of Belgrade, Studenstki trg 16, 11000, Belgrade, Serbia
| | - Filip Radovanović
- Institute of Technical Sciences of the Serbian Academy of Sciences and Arts, Knez Mihailova 35/IV, 11000, Belgrade, Serbia
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Ghosh U, Ning S, Wang Y, Kong YL. Addressing Unmet Clinical Needs with 3D Printing Technologies. Adv Healthc Mater 2018; 7:e1800417. [PMID: 30004185 DOI: 10.1002/adhm.201800417] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Revised: 05/29/2018] [Indexed: 01/04/2023]
Abstract
Recent advances in 3D printing have enabled the creation of novel 3D constructs and devices with an unprecedented level of complexity, properties, and functionalities. In contrast to manufacturing techniques developed for mass production, 3D printing encompasses a broad class of fabrication technologies that can enable 1) the creation of highly customized and optimized 3D physical architectures from digital designs; 2) the synergistic integration of properties and functionalities of distinct classes of materials to create novel hybrid devices; and 3) a biocompatible fabrication approach that facilitates the creation and cointegration of biological constructs and systems. This progress report describes how these capabilities can potentially address a myriad of unmet clinical needs. First, the creation of 3D-printed prosthetics to regain lost functionalities by providing structural support for skeletal and tubular organs is highlighted. Second, novel drug delivery strategies aided by 3D-printed devices are described. Third, the advancement of medical research heralded by 3D-printed tissue/organ-on-chips systems is discussed. Fourth, the developments of 3D-printed tissue and organ regeneration are explored. Finally, the potential for seamless integration of engineered organs with active devices by leveraging the versatility of multimaterial 3D printing is envisioned.
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Affiliation(s)
- Udayan Ghosh
- Department of Mechanical Engineering; University of Utah; 1495 E 100 S (1550 MEK) Salt Lake City UT 84112 USA
| | - Shen Ning
- Boston University School of Medicine; Boston University; 72 E Concord St Boston MA 02118 USA
| | - Yuzhu Wang
- Department of Mechanical Engineering; University of Utah; 1495 E 100 S (1550 MEK) Salt Lake City UT 84112 USA
| | - Yong Lin Kong
- Department of Mechanical Engineering; University of Utah; 1495 E 100 S (1550 MEK) Salt Lake City UT 84112 USA
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60
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Wu B, Takeshita N, Wu Y, Vijayavenkataraman S, Ho KY, Lu WF, Fuh JYH. Pluronic F127 blended polycaprolactone scaffolds via e-jetting for esophageal tissue engineering. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2018; 29:140. [PMID: 30120625 DOI: 10.1007/s10856-018-6148-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Accepted: 08/05/2018] [Indexed: 06/08/2023]
Abstract
Several attempts have been made to fabricate esophageal tissue engineering scaffolds. However, most of these scaffolds possess randomly oriented fibres and uncontrollable pore sizes. In order to mimic the native esophageal tissue structure, electro-hydrodynamic jetting (e-jetting) was used in this study to fabricate scaffolds with aligned fibres and controlled pore size. A hydrophilic additive, Pluronic F127 (F127), was blended with polycaprolactone (PCL) to improve the wettability of the scaffolds and hence the cell adhesion. PCL/F127 composite scaffolds with different weight ratios (0-12%) were fabricated. The wettability, phase composition, and the mechanical properties of the fabricated scaffolds were investigated. The results show that the e-jetted scaffolds have controllable fibres orientated in two perpendicular directions, which are similar to the human esophagus structure and suitable pore size for cell infiltration. In addition, the scaffolds with 8% F127 exhibited better wettability (contact angle of 14°) and an ultimate tensile strength (1.2 MPa) that mimics the native esophageal tissue. Furthermore, primary human esophageal fibroblasts were seeded on the e-jetted scaffolds. PCL/F127 scaffolds showed enhanced cell proliferation and expression of the vascular endothelial growth factor (VEGF) compared to pristine PCL scaffolds (1.5- and 25.8- fold increase, respectively; P < 0.001). An in vitro wound model made using the PCL/F127 scaffolds showed better cell migration than the PCL scaffolds. In summary, the PCL/F127 e-jetted scaffolds offer a promising strategy for the esophagus tissue repair.
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Affiliation(s)
- Bin Wu
- Department of Mechanical Engineering, National University of Singapore, Singapore, 117576, Singapore
| | - Nobuyoshi Takeshita
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 119228, Singapore
- Division of Gastroenterology and Hepatology, National University Health System, Singapore, 119228, Singapore
| | - Yang Wu
- Engineering Science and Mechanics Department, Penn State University, University Park, PA, 16802, USA
- The Huck Institutes of the Life Sciences, Penn State University, University Park, PA, 16802, USA
| | | | - Khek Yu Ho
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 119228, Singapore
- Division of Gastroenterology and Hepatology, National University Health System, Singapore, 119228, Singapore
| | - Wen Feng Lu
- Department of Mechanical Engineering, National University of Singapore, Singapore, 117576, Singapore
| | - Jerry Ying Hsi Fuh
- Department of Mechanical Engineering, National University of Singapore, Singapore, 117576, Singapore.
- National University of Singapore (Suzhou) Research Institute, Suzhou Industrial Park, Suzhou, 215123, People's Republic of China.
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Li Y, Gao Y, Wang B, Hao J, Hu J, Ju Y. Natural Triterpenoid- and Oligo(Ethylene Glycol)-Pendant-Containing Block and Random Copolymers: Aggregation and pH-Controlled Release. Chem Asian J 2018; 13:2723-2729. [PMID: 29984894 DOI: 10.1002/asia.201800761] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 07/08/2018] [Indexed: 12/20/2022]
Abstract
In this research, a series of random and block amphiphilic copolymers of norbornene derivatives containing biocompatible natural triterpenoid and oligo(ethylene glycol) pendants were synthesized by ring-opening metathesis polymerization. These copolymers were heat and pH responsive, and could self-assemble into core-shell spherical micelles in aqueous solution. Their hydrodynamic diameters corresponded to pH values and monomer sequences. By evaluating the loading and release capacity of hydrophobic molecules, it was found that 1) the higher the content of the hydrophobic triterpenoid, the higher the loading capacity; 2) the release speed could be trigged by the pH because of the deprotonation of the carboxyl groups on the triterpenoid. Additionally, the copolymers exhibited low cytotoxicity toward L929 cells, which makes them potential nanocarrier candidates for controlled drug delivery.
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Affiliation(s)
- Ying Li
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084, China
- College of Chemistry and Material Science, Shandong Agricultural University, Tai'an, 271018, China
| | - Yuxia Gao
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Bo Wang
- State Key Lab of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
| | - Jie Hao
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Jun Hu
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
- State Key Lab of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
| | - Yong Ju
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084, China
- State Key Lab of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
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V.S. S, P.V. M. Degradation of Poly(ε-caprolactone) and bio-interactions with mouse bone marrow mesenchymal stem cells. Colloids Surf B Biointerfaces 2018; 163:107-118. [DOI: 10.1016/j.colsurfb.2017.12.039] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Revised: 12/10/2017] [Accepted: 12/19/2017] [Indexed: 10/18/2022]
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Herbert R, Kim JH, Kim YS, Lee HM, Yeo WH. Soft Material-Enabled, Flexible Hybrid Electronics for Medicine, Healthcare, and Human-Machine Interfaces. MATERIALS (BASEL, SWITZERLAND) 2018; 11:E187. [PMID: 29364861 PMCID: PMC5848884 DOI: 10.3390/ma11020187] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Revised: 01/20/2018] [Accepted: 01/23/2018] [Indexed: 12/20/2022]
Abstract
Flexible hybrid electronics (FHE), designed in wearable and implantable configurations, have enormous applications in advanced healthcare, rapid disease diagnostics, and persistent human-machine interfaces. Soft, contoured geometries and time-dynamic deformation of the targeted tissues require high flexibility and stretchability of the integrated bioelectronics. Recent progress in developing and engineering soft materials has provided a unique opportunity to design various types of mechanically compliant and deformable systems. Here, we summarize the required properties of soft materials and their characteristics for configuring sensing and substrate components in wearable and implantable devices and systems. Details of functionality and sensitivity of the recently developed FHE are discussed with the application areas in medicine, healthcare, and machine interactions. This review concludes with a discussion on limitations of current materials, key requirements for next generation materials, and new application areas.
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Affiliation(s)
- Robert Herbert
- George W. Woodruff School of Mechanical Engineering, College of Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA.
| | - Jong-Hoon Kim
- School of Engineering and Computer Science, Washington State University, Vancouver, WA 98686, USA.
| | - Yun Soung Kim
- George W. Woodruff School of Mechanical Engineering, College of Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA.
| | - Hye Moon Lee
- Functional Materials Division, Korea Institute of Materials Science (KIMS), 797 Changwondaero, Seongsan-gu, Changwon, Gyeongnam 641-831, Korea.
| | - Woon-Hong Yeo
- George W. Woodruff School of Mechanical Engineering, College of Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA.
- Center for Flexible Electronics, Institute for Electronics and Nanotechnology, Bioengineering Program, Petit Institute for Bioengineering and Biosciences, Neural Engineering Center, Georgia Institute of Technology, Atlanta, GA 30332, USA.
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Vandewalle S, Van De Walle M, Chattopadhyay S, Du Prez F. Polycaprolactone-b-poly(N-isopropylacrylamide) nanoparticles: Synthesis and temperature induced coacervation behavior. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2017.11.027] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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65
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Gsib O, Duval JL, Goczkowski M, Deneufchatel M, Fichet O, Larreta-Garde V, Bencherif SA, Egles C. Evaluation of Fibrin-Based Interpenetrating Polymer Networks as Potential Biomaterials for Tissue Engineering. NANOMATERIALS (BASEL, SWITZERLAND) 2017; 7:E436. [PMID: 29232876 PMCID: PMC5746926 DOI: 10.3390/nano7120436] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 11/30/2017] [Accepted: 12/05/2017] [Indexed: 12/14/2022]
Abstract
Interpenetrating polymer networks (IPNs) have gained great attention for a number of biomedical applications due to their improved properties compared to individual components alone. In this study, we investigated the capacity of newly-developed naturally-derived IPNs as potential biomaterials for tissue engineering. These IPNs combine the biologic properties of a fibrous fibrin network polymerized at the nanoscale and the mechanical stability of polyethylene oxide (PEO). First, we assessed their cytotoxicity in vitro on L929 fibroblasts. We further evaluated their biocompatibility ex vivo with a chick embryo organotypic culture model. Subcutaneous implantations of the matrices were subsequently conducted on nude mice to investigate their biocompatibility in vivo. Our preliminary data highlighted that our biomaterials were non-cytotoxic (viability above 90%). The organotypic culture showed that the IPN matrices induced higher cell adhesion (across all the explanted organ tissues) and migration (skin, intestine) than the control groups, suggesting the advantages of using a biomimetic, yet mechanically-reinforced IPN-based matrix. We observed no major inflammatory response up to 12 weeks post implantation. All together, these data suggest that these fibrin-based IPNs are promising biomaterials for tissue engineering.
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Affiliation(s)
- Olfat Gsib
- Laboratoire de BioMécanique et de BioIngénierie (BMBI) UMR CNRS 7388, Sorbonne Universités, Université de Technologie of Compiègne (UTC), 60200 Compiègne, France.
| | - Jean-Luc Duval
- Laboratoire de BioMécanique et de BioIngénierie (BMBI) UMR CNRS 7388, Sorbonne Universités, Université de Technologie of Compiègne (UTC), 60200 Compiègne, France.
| | - Mathieu Goczkowski
- Equipe de Recherche sur les Relations Matrice Extracellulaire Cellules (Errmece), Institut des Matériaux, Université de Cergy-Pontoise, 95000 Cergy-Pontoise, France.
| | - Marie Deneufchatel
- Equipe de Recherche sur les Relations Matrice Extracellulaire Cellules (Errmece), Institut des Matériaux, Université de Cergy-Pontoise, 95000 Cergy-Pontoise, France.
- Laboratoire de Physicochimie des Polymères et des Interfaces (LPPI), Institut des Matériaux, Université de Cergy-Pontoise, 95000 Cergy-Pontoise, France.
| | - Odile Fichet
- Laboratoire de Physicochimie des Polymères et des Interfaces (LPPI), Institut des Matériaux, Université de Cergy-Pontoise, 95000 Cergy-Pontoise, France.
| | - Véronique Larreta-Garde
- Equipe de Recherche sur les Relations Matrice Extracellulaire Cellules (Errmece), Institut des Matériaux, Université de Cergy-Pontoise, 95000 Cergy-Pontoise, France.
| | - Sidi Ahmed Bencherif
- Laboratoire de BioMécanique et de BioIngénierie (BMBI) UMR CNRS 7388, Sorbonne Universités, Université de Technologie of Compiègne (UTC), 60200 Compiègne, France.
- School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA.
- Department of Chemical Engineering, Northeastern University, 360 Huntington Avenue, Boston, MA 02215, USA.
| | - Christophe Egles
- Laboratoire de BioMécanique et de BioIngénierie (BMBI) UMR CNRS 7388, Sorbonne Universités, Université de Technologie of Compiègne (UTC), 60200 Compiègne, France.
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Molecular insights for the biological interactions between polyethylene glycol and cells. Biomaterials 2017; 147:1-13. [DOI: 10.1016/j.biomaterials.2017.09.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Revised: 08/18/2017] [Accepted: 09/02/2017] [Indexed: 12/13/2022]
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Vascular Tissue Engineering: Effects of Integrating Collagen into a PCL Based Nanofiber Material. BIOMED RESEARCH INTERNATIONAL 2017; 2017:9616939. [PMID: 28932749 PMCID: PMC5592415 DOI: 10.1155/2017/9616939] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Accepted: 07/11/2017] [Indexed: 11/18/2022]
Abstract
The engineering of vascular grafts is a growing field in regenerative medicine. Although numerous attempts have been made, the current vascular grafts made of polyurethane (PU), Dacron®, or Teflon® still display unsatisfying results. Electrospinning of biopolymers and native proteins has been in the focus of research to imitate the extracellular matrix (ECM) of vessels to produce a small caliber, off-the-shelf tissue engineered vascular graft (TEVG) as a substitute for poorly performing PU, Dacron, or Teflon prostheses. Blended poly-ε-caprolactone (PCL)/collagen grafts have shown promising results regarding biomechanical and cell supporting features. In order to find a suitable PCL/collagen blend, we fabricated plane electrospun PCL scaffolds using various collagen type I concentrations ranging from 5% to 75%. We analyzed biocompatibility and morphological aspects in vitro. Our results show beneficial features of collagen I integration regarding cell viability and functionality, but also adverse effects like the loss of a confluent monolayer at high concentrations of collagen. Furthermore, electrospun PCL scaffolds containing 25% collagen I seem to be ideal for engineering vascular grafts.
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68
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Le Kim TH, Jun H, Nam YS. Importance of crystallinity of anchoring block of semi-solid amphiphilic triblock copolymers in stabilization of silicone nanoemulsions. J Colloid Interface Sci 2017; 503:39-46. [PMID: 28500938 DOI: 10.1016/j.jcis.2017.04.079] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Revised: 04/23/2017] [Accepted: 04/25/2017] [Indexed: 11/25/2022]
Abstract
Polymer emulsifiers solidified at the interface between oil and water can provide exceptional dispersion stability to emulsions due to the formation of unique semi-solid interphase. Our recent works showed that the structural stability of paraffin-in-water emulsions highly depends on the oil wettability of hydrophobic block of methoxy poly(ethylene glycol)-block-poly(ε-caprolactone) (mPEG-b-PCL). Here we investigate the effects of the crystallinity of hydrophobic block of triblock copolymer-based emulsifiers, PCLL-b-PEG-b-PCLL, on the colloidal properties of silicone oil-in-water nanoemulsions. The increased ratio of l-lactide to ε-caprolactone decreases the crystallinity of the hydrophobic block, which in turn reduces the droplet size of silicone oil nanoemulsions due to the increased chain mobility at the interface. All of the prepared nanoemulsions are very stable for a month at 37°C. However, the exposure to repeated freeze-thaw cycles quickly destabilizes the nanoemulsions prepared using the polymer with the reduced crystallinity. This work demonstrates that the anchoring chain crystallization in the semi-solid interphase is critically important for the structural robustness of nanoemulsions under harsh physical stresses.
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Affiliation(s)
- Trang Huyen Le Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Hwiseok Jun
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Yoon Sung Nam
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea; KAIST Institute for the NanoCentury, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea.
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69
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Chen X, Gleeson SE, Yu T, Khan N, Yucha RW, Marcolongo M, Li CY. Hierarchically ordered polymer nanofiber shish kebabs as a bone scaffold material. J Biomed Mater Res A 2017; 105:1786-1798. [DOI: 10.1002/jbm.a.36039] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Revised: 02/08/2017] [Accepted: 02/10/2017] [Indexed: 01/23/2023]
Affiliation(s)
- Xi Chen
- Department of Materials Science and EngineeringDrexel UniversityPhiladelphia Pennsylvania19104
| | - Sarah E. Gleeson
- Department of Materials Science and EngineeringDrexel UniversityPhiladelphia Pennsylvania19104
| | - Tony Yu
- Department of Materials Science and EngineeringDrexel UniversityPhiladelphia Pennsylvania19104
| | - Nasreen Khan
- Department of Materials Science and EngineeringDrexel UniversityPhiladelphia Pennsylvania19104
| | - Robert W. Yucha
- Department of Materials Science and EngineeringDrexel UniversityPhiladelphia Pennsylvania19104
| | - Michele Marcolongo
- Department of Materials Science and EngineeringDrexel UniversityPhiladelphia Pennsylvania19104
| | - Christopher Y. Li
- Department of Materials Science and EngineeringDrexel UniversityPhiladelphia Pennsylvania19104
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70
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Ge C, Basuki JS, White J, Hou R, Peng Y, Hughes TC, Tan T. Photothermal triggered protein release from an injectable polycaprolactone-based microspherical depot. J Mater Chem B 2017; 5:3634-3639. [DOI: 10.1039/c7tb00837f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Visible light mediated controlled release of biologically active enzymes was confirmed by released horseradish peroxidase's ability to ameliorate H2O2 cytotoxicity in vitro.
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Affiliation(s)
- Chunling Ge
- Beijing Key Lab of Bioprocess, Beijing University of Chemical Technology
- Beijing
- P. R. China
- Manufacturing
- CSIRO
| | | | | | - Ruixia Hou
- Manufacturing
- CSIRO
- Clayton
- Victoria
- Australia
| | - Yong Peng
- Manufacturing
- CSIRO
- Clayton
- Victoria
- Australia
| | | | - Tianwei Tan
- Beijing Key Lab of Bioprocess, Beijing University of Chemical Technology
- Beijing
- P. R. China
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71
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Kim JE, Kim SH, Jung Y. Current status of three-dimensional printing inks for soft tissue regeneration. Tissue Eng Regen Med 2016; 13:636-646. [PMID: 30603445 PMCID: PMC6170864 DOI: 10.1007/s13770-016-0125-8] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Revised: 10/01/2016] [Accepted: 10/04/2016] [Indexed: 12/22/2022] Open
Abstract
Recently, three-dimensional (3D) printing technologies have become an attractive manufacturing process, which is called additive manufacturing or rapid prototyping. A 3D printing system can design and fabricate 3D shapes and geometries resulting in custom 3D scaffolds in tissue engineering. In tissue regeneration and replacement, 3D printing systems have been frequently used with various biomaterials such as natural and synthetic polymers. In tissue engineering, soft tissue regeneration is very difficult because soft tissue has the properties of high elasticity, flexibility and viscosity which act as an obstacle when creating a 3D structure by stacking layer after layer of biomaterials compared to hard tissue regeneration. To overcome these limitations, many studies are trying to fabricate constructs with a very similar native micro-environmental property for a complex biofunctional scaffold with suitable biological and mechanical parameters by optimizing the biomaterials, for example, control the concentration and diversification of materials. In this review, we describe the characteristics of printing biomaterials such as hydrogel, synthetic polymer and composite type as well as recent advances in soft tissue regeneration. It is expected that 3D printed constructs will be able to replace as well as regenerate defective tissues or injured functional tissues and organs.
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Affiliation(s)
- Ji Eun Kim
- KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul, Korea
- Biomaterials Research Center, Korea Institute of Science and Technology, Seoul, Korea
| | - Soo Hyun Kim
- KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul, Korea
- Biomaterials Research Center, Korea Institute of Science and Technology, Seoul, Korea
- Department of Biomedical Engineering, University of Science and Technology (UST), Seoul, Korea
| | - Youngmee Jung
- Biomaterials Research Center, Korea Institute of Science and Technology, Seoul, Korea
- Department of Biomedical Engineering, University of Science and Technology (UST), Seoul, Korea
- Biomaterials Research Center, Korea Institute of Science and Technology, 5 Hwarang-ro 14-gil, Seongbuk-gu, 02792 Seoul, Korea
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72
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Ianiro A, Jiménez-Pardo I, Esteves ACC, Tuinier R. One-pot, solvent-free, metal-free synthesis and UCST-based purification of poly(ethylene oxide)/poly-ε-caprolactone block copolymers. ACTA ACUST UNITED AC 2016. [DOI: 10.1002/pola.28185] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Alessandro Ianiro
- Department of Chemical Engineering and Chemistry; Laboratory of Physical Chemistry; Institute for Complex Molecular Systems; Eindhoven University of Technology; Eindhoven The Netherlands
| | - Isabel Jiménez-Pardo
- Department of Chemical Engineering and Chemistry; Laboratory of Physical Chemistry; Institute for Complex Molecular Systems; Eindhoven University of Technology; Eindhoven The Netherlands
| | - A. Catarina C. Esteves
- Department of Chemical Engineering and Chemistry; Laboratory of Physical Chemistry; Institute for Complex Molecular Systems; Eindhoven University of Technology; Eindhoven The Netherlands
| | - Remco Tuinier
- Department of Chemical Engineering and Chemistry; Laboratory of Physical Chemistry; Institute for Complex Molecular Systems; Eindhoven University of Technology; Eindhoven The Netherlands
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73
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Influence of macromolecular structure of novel 2- and 4-armed polylactides on their physicochemical properties and in vitro degradation process. JOURNAL OF POLYMER RESEARCH 2016. [DOI: 10.1007/s10965-016-1023-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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74
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Scislowska-Czarnecka A, Pamula E, Tlalka A, Kolaczkowska E. Effects of aliphatic polyesters on activation of the immune system: studies on macrophages. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2016; 23:715-38. [PMID: 21375810 DOI: 10.1163/092050611x559421] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
There is a constant search for biodegradable polymers with biocompatible characteristics. However, the reported materials are rarely tested for their immunostimulatory properties, which is an important issue as immune cells activated by the polymers might cause their rejection and lead to further injury to the host tissues. Therefore, the aim of the present study was to determine if biodegradable polymers are able to activate RAW 264.7 macrophages. Aliphatic polyesters, poly(L-lactide) (PLLA), poly(L-lactide-co-trimethylene carbonate) (PLTMC), poly(glycolide-co-L-lactide) (PGLA), poly(glycolide-co-L-lactide-co-ε-caprolactone) (PGLCap) and poly(glycolide-co-ε-caprolactone) (PGCap), processed into foils by slip-casting, were characterized in terms of their structure ((1)H-NMR, GPC, DSC) and surface properties (chemical composition, water contact angle, surface free energy, topography and roughness). RAW 264.7 cells were cultured on the materials for 3 or 5 days and their adherence, numbers of apoptotic/necrotic cells, as well as production of several cytokines/chemokines and other inflammation-related molecules (matrix metalloproteinases, nitric oxide) was evaluated. The study demonstrated that PLLA and PGLA did not influence macrophage activation and survival. In contrast, PLTMC, PGLCap and PGCap significantly decreased macrophage adherence, increased ratio of apoptosis and up-regulated synthesis/release of numerous inflammatory mediators. Thus, the latter materials might initiate an undesired inflammatory reaction. The above effects of the polymers were attributed to their high hydrophobicity and low polarity due to the presence of ε-caproyl blocks (PGLCap and PGCap), and/or high flexibility and susceptibility to mechanical deformation due to low glasstransition temperature (PLTMC, PGLCap and PGCap). In conclusion, while PLLA and PGLA do not affect macrophage functioning, the other materials (PLTMC, PGLCap, PGCap) up-regulate macrophage activity.
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75
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Ma YY, Mou XZ, Ding YH, Zou H, Huang DS. Delivery systems of ceramide in targeted cancer therapy: ceramide alone or in combination with other anti-tumor agents. Expert Opin Drug Deliv 2016; 13:1397-406. [PMID: 27168034 DOI: 10.1080/17425247.2016.1188803] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Ying-Yu Ma
- Clinical Research Institute, Zhejiang Provincial People’s Hospital, Hangzhou, China
- Medical School and Jiangsu Laboratory of Molecular Medicine, Nanjing University, Nanjing, China
| | - Xiao-Zhou Mou
- Clinical Research Institute, Zhejiang Provincial People’s Hospital, Hangzhou, China
| | - Ya-Hui Ding
- Department of Cardiology, Zhejiang Provincial People’s Hospital, Hangzhou, China
| | - Hai Zou
- Department of Cardiology, Zhejiang Provincial People’s Hospital, Hangzhou, China
| | - Dong-Sheng Huang
- Clinical Research Institute, Zhejiang Provincial People’s Hospital, Hangzhou, China
- Department of Hepatobiliary Surgery, Zhejiang Provincial People’s Hospital, Hangzhou, China
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76
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Boire TC, Gupta MK, Zachman AL, Lee SH, Balikov DA, Kim K, Bellan LM, Sung HJ. Reprint of: Pendant allyl crosslinking as a tunable shape memory actuator for vascular applications. Acta Biomater 2016; 34:73-83. [PMID: 27018333 DOI: 10.1016/j.actbio.2016.03.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2015] [Revised: 05/08/2015] [Accepted: 06/01/2015] [Indexed: 10/22/2022]
Abstract
Thermo-responsive shape memory polymers (SMPs) can be programmed to fit into small-bore incisions and recover their functional shape upon deployment in the body. This property is of significant interest for developing the next generation of minimally-invasive medical devices. To be used in such applications, SMPs should exhibit adequate mechanical strengths that minimize adverse compliance mismatch-induced host responses (e.g. thrombosis, hyperplasia), be biodegradable, and demonstrate switch-like shape recovery near body temperature with favorable biocompatibility. Combinatorial approaches are essential in optimizing SMP material properties for a particular application. In this study, a new class of thermo-responsive SMPs with pendant, photocrosslinkable allyl groups, x%poly(ε-caprolactone)-co-y%(α-allyl carboxylate ε-caprolactone) (x%PCL-y%ACPCL), are created in a robust, facile manner with readily tunable material properties. Thermomechanical and shape memory properties can be drastically altered through subtle changes in allyl composition. Molecular weight and gel content can also be altered in this combinatorial format to fine-tune material properties. Materials exhibit highly elastic, switch-like shape recovery near 37 °C. Endothelial compatibility is comparable to tissue culture polystyrene (TCPS) and 100%PCL in vitro and vascular compatibility is demonstrated in vivo in a murine model of hindlimb ischemia, indicating promising suitability for vascular applications. STATEMENT OF SIGNIFICANCE With the ongoing thrust to make surgeries minimally-invasive, it is prudent to develop new biomaterials that are highly compatible and effective in this workflow. Thermo-responsive shape memory polymers (SMPs) have great potential for minimally-invasive applications because SMP medical devices (e.g. stents, grafts) can fit into small-bore minimally-invasive surgical devices and recover their functional shape when deployed in the body. To realize their potential, it is imperative to devise combinatorial approaches that enable optimization of mechanical, SM, and cellular responses for a particular application. In this study, a new class of thermo-responsive SMPs is created in a robust, facile manner with readily tunable material properties. Materials exhibit excellent, switch-like shape recovery near body temperature and promising biocompatibility for minimally-invasive vascular applications.
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77
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Kang HW, Lee SJ, Ko IK, Kengla C, Yoo JJ, Atala A. A 3D bioprinting system to produce human-scale tissue constructs with structural integrity. Nat Biotechnol 2016; 34:312-9. [PMID: 26878319 DOI: 10.1038/nbt.3413] [Citation(s) in RCA: 1438] [Impact Index Per Article: 179.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Accepted: 10/19/2015] [Indexed: 02/07/2023]
Abstract
A challenge for tissue engineering is producing three-dimensional (3D), vascularized cellular constructs of clinically relevant size, shape and structural integrity. We present an integrated tissue-organ printer (ITOP) that can fabricate stable, human-scale tissue constructs of any shape. Mechanical stability is achieved by printing cell-laden hydrogels together with biodegradable polymers in integrated patterns and anchored on sacrificial hydrogels. The correct shape of the tissue construct is achieved by representing clinical imaging data as a computer model of the anatomical defect and translating the model into a program that controls the motions of the printer nozzles, which dispense cells to discrete locations. The incorporation of microchannels into the tissue constructs facilitates diffusion of nutrients to printed cells, thereby overcoming the diffusion limit of 100-200 μm for cell survival in engineered tissues. We demonstrate capabilities of the ITOP by fabricating mandible and calvarial bone, cartilage and skeletal muscle. Future development of the ITOP is being directed to the production of tissues for human applications and to the building of more complex tissues and solid organs.
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Affiliation(s)
- Hyun-Wook Kang
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, North Carolina, USA
| | - Sang Jin Lee
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, North Carolina, USA
| | - In Kap Ko
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, North Carolina, USA
| | - Carlos Kengla
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, North Carolina, USA
| | - James J Yoo
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, North Carolina, USA
| | - Anthony Atala
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, North Carolina, USA
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78
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Wang X, Hu L, Li C, Gan L, He M, He X, Tian W, Li M, Xu L, Li Y, Chen Y. Improvement in physical and biological properties of chitosan/soy protein films by surface grafted heparin. Int J Biol Macromol 2016; 83:19-29. [DOI: 10.1016/j.ijbiomac.2015.11.052] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2015] [Revised: 11/18/2015] [Accepted: 11/19/2015] [Indexed: 12/25/2022]
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79
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Jia YG, Zhu XX. Thermo- and pH-Responsive Copolymers Bearing Cholic Acid and Oligo(ethylene glycol) Pendants: Self-Assembly and pH-Controlled Release. ACS APPLIED MATERIALS & INTERFACES 2015; 7:24649-24655. [PMID: 26479835 DOI: 10.1021/acsami.5b06909] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A family of block and random copolymers of norbornene derivatives bearing cholic acid and oligo(ethylene glycol) pendants were prepared in the presence of Grubbs' catalyst. The phase transition temperature of the copolymers in aqueous solutions may be tuned by the variation of comonomer ratios and pH values. Both types of copolymers formed micellar nanostructures with a hydrophilic poly(ethylene glycol) shell and a hydrophobic core containing cholic acid residues. The micellar size increased gradually with increasing pH due to the deprotonation of the carboxylic acid groups. These micelles were capable of encapsulating hydrophobic compounds such as Nile Red (NR). A higher hydrophobicity/hydrophilicity ratio in both copolymers resulted in a higher loading capacity for NR. With similar molecular weights and monomer compositions, the block copolymers showed a higher loading capacity for NR than the random copolymers. The NR-loaded micelles exhibited a pH-triggered release behavior. At pH 7.4 within 96 h, the micelles formed by the block and random of copolymers released 56 and 97% NR, respectively. Therefore, these micelles may have promise for use as therapeutic nanocarriers in drug delivery systems.
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Affiliation(s)
- Yong-Guang Jia
- Département de Chimie, Université de Montréal , C.P. 6128, Succursale Centre-ville, Montréal, QC H3C 3J7, Canada
| | - X X Zhu
- Département de Chimie, Université de Montréal , C.P. 6128, Succursale Centre-ville, Montréal, QC H3C 3J7, Canada
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80
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Ivanov AN, Kozadaev MN, Bogomolova NV, Matveeva OV, Puchin’yan MD, Norkin IA, Salkovsky YE, Lyubun GP. Biocompatibility of polycaprolactone and hydroxyapatite matrices in vivo. ACTA ACUST UNITED AC 2015. [DOI: 10.1134/s1990519x15050077] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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81
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Boire TC, Gupta MK, Zachman AL, Lee SH, Balikov DA, Kim K, Bellan LM, Sung HJ. Pendant allyl crosslinking as a tunable shape memory actuator for vascular applications. Acta Biomater 2015; 24:53-63. [PMID: 26072363 PMCID: PMC4560603 DOI: 10.1016/j.actbio.2015.06.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2015] [Revised: 05/08/2015] [Accepted: 06/01/2015] [Indexed: 01/19/2023]
Abstract
Thermo-responsive shape memory polymers (SMPs) can be programmed to fit into small-bore incisions and recover their functional shape upon deployment in the body. This property is of significant interest for developing the next generation of minimally-invasive medical devices. To be used in such applications, SMPs should exhibit adequate mechanical strengths that minimize adverse compliance mismatch-induced host responses (e.g. thrombosis, hyperplasia), be biodegradable, and demonstrate switch-like shape recovery near body temperature with favorable biocompatibility. Combinatorial approaches are essential in optimizing SMP material properties for a particular application. In this study, a new class of thermo-responsive SMPs with pendant, photocrosslinkable allyl groups, x%poly(ε-caprolactone)-co-y%(α-allyl carboxylate ε-caprolactone) (x%PCL-y%ACPCL), are created in a robust, facile manner with readily tunable material properties. Thermomechanical and shape memory properties can be drastically altered through subtle changes in allyl composition. Molecular weight and gel content can also be altered in this combinatorial format to fine-tune material properties. Materials exhibit highly elastic, switch-like shape recovery near 37°C. Endothelial compatibility is comparable to tissue culture polystyrene (TCPS) and 100%PCL in vitro and vascular compatibility is demonstrated in vivo in a murine model of hindlimb ischemia, indicating promising suitability for vascular applications. STATEMENT OF SIGNIFICANCE With the ongoing thrust to make surgeries minimally-invasive, it is prudent to develop new biomaterials that are highly compatible and effective in this workflow. Thermo-responsive shape memory polymers (SMPs) have great potential for minimally-invasive applications because SMP medical devices (e.g. stents, grafts) can fit into small-bore minimally-invasive surgical devices and recover their functional shape when deployed in the body. To realize their potential, it is imperative to devise combinatorial approaches that enable optimization of mechanical, SM, and cellular responses for a particular application. In this study, a new class of thermo-responsive SMPs is created in a robust, facile manner with readily tunable material properties. Materials exhibit excellent, switch-like shape recovery near body temperature and promising biocompatibility for minimally-invasive vascular applications.
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Affiliation(s)
- Timothy C Boire
- † Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, 37235, United States
| | - Mukesh K Gupta
- † Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, 37235, United States
| | - Angela L Zachman
- † Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, 37235, United States
| | - Sue Hyun Lee
- † Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, 37235, United States
| | - Daniel A Balikov
- † Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, 37235, United States
| | - Kwangho Kim
- Institute of Chemical Biology, Nashville, TN, 37235, United States
| | - Leon M Bellan
- † Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, 37235, United States
- Department of Mechanical Engineering, Vanderbilt University, Nashville, TN, 37235, United States
| | - Hak-Joon Sung
- † Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, 37235, United States
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82
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Morgado PI, Aguiar-Ricardo A, Correia IJ. Asymmetric membranes as ideal wound dressings: An overview on production methods, structure, properties and performance relationship. J Memb Sci 2015. [DOI: 10.1016/j.memsci.2015.04.064] [Citation(s) in RCA: 128] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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83
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Vikingsson L, Claessens B, Gómez-Tejedor J, Gallego Ferrer G, Gómez Ribelles J. Relationship between micro-porosity, water permeability and mechanical behavior in scaffolds for cartilage engineering. J Mech Behav Biomed Mater 2015; 48:60-69. [DOI: 10.1016/j.jmbbm.2015.03.021] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Revised: 03/18/2015] [Accepted: 03/24/2015] [Indexed: 01/04/2023]
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84
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Dang HC, Luo YK, Xu C, Song F, Wang XL, Wang YZ. Contribution of Hemispheric CaCO3 To Improving Crystalline, Physical Properties and Biocompatibility of Poly(p-dioxanone). Ind Eng Chem Res 2015. [DOI: 10.1021/acs.iecr.5b00796] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hai-Chun Dang
- Center
for Degradable and Flame-Retardant Polymeric Materials, College of
Chemistry, National Engineering Laboratory of Eco-Friendly Polymeric
Materials (Sichuan), Sichuan University, Chengdu 610064, China
| | - Yan-Kui Luo
- Center
for Degradable and Flame-Retardant Polymeric Materials, College of
Chemistry, National Engineering Laboratory of Eco-Friendly Polymeric
Materials (Sichuan), Sichuan University, Chengdu 610064, China
| | - Chen Xu
- Center
for Degradable and Flame-Retardant Polymeric Materials, College of
Chemistry, National Engineering Laboratory of Eco-Friendly Polymeric
Materials (Sichuan), Sichuan University, Chengdu 610064, China
| | - Fei Song
- Center
for Degradable and Flame-Retardant Polymeric Materials, College of
Chemistry, National Engineering Laboratory of Eco-Friendly Polymeric
Materials (Sichuan), Sichuan University, Chengdu 610064, China
| | - Xiu-Li Wang
- Center
for Degradable and Flame-Retardant Polymeric Materials, College of
Chemistry, National Engineering Laboratory of Eco-Friendly Polymeric
Materials (Sichuan), Sichuan University, Chengdu 610064, China
| | - Yu-Zhong Wang
- Center
for Degradable and Flame-Retardant Polymeric Materials, College of
Chemistry, National Engineering Laboratory of Eco-Friendly Polymeric
Materials (Sichuan), Sichuan University, Chengdu 610064, China
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85
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Sabbatier G, Larrañaga A, Guay-Bégin AA, Fernandez J, Diéval F, Durand B, Sarasua JR, Laroche G. Design, Degradation Mechanism and Long-Term Cytotoxicity of Poly(l-lactide) and Poly(Lactide-co-ϵ-Caprolactone) Terpolymer Film and Air-Spun Nanofiber Scaffold. Macromol Biosci 2015; 15:1392-410. [DOI: 10.1002/mabi.201500130] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Revised: 05/14/2015] [Indexed: 11/10/2022]
Affiliation(s)
- Gad Sabbatier
- Laboratoire d'Ingénierie de Surface, Centre de Recherche sur les Matériaux Avancés, Département de génie des mines, de la métallurgie et des matériaux; Université Laval; 1065, avenue de la Médecine Québec City Canada G1V 0A6
- Axe Médecine Régénératrice, Centre de recherche du CHU de Québec; Hôpital St François d'Assise; 10, rue de l'Espinay Québec City Canada G1L 3L5
- Laboratoire de Physique et Mécanique Textile, Université de Haute Alsace; École Nationale Supérieure d'Ingénieurs du Sud Alsace; 11 rue Alfred Werner 68093 Mulhouse Cedex France
| | - Aitor Larrañaga
- Department of Mining-Metallurgy Engineering and Materials Science, School of Engineering; University of the Basque Country (UPV/EHU); Alameda de Urquijo s/n 48013 Bilbao Spain
| | - Andrée-Anne Guay-Bégin
- Axe Médecine Régénératrice, Centre de recherche du CHU de Québec; Hôpital St François d'Assise; 10, rue de l'Espinay Québec City Canada G1L 3L5
| | - Jorge Fernandez
- Department of Mining-Metallurgy Engineering and Materials Science, School of Engineering; University of the Basque Country (UPV/EHU); Alameda de Urquijo s/n 48013 Bilbao Spain
| | - Florence Diéval
- Laboratoire de Physique et Mécanique Textile, Université de Haute Alsace; École Nationale Supérieure d'Ingénieurs du Sud Alsace; 11 rue Alfred Werner 68093 Mulhouse Cedex France
| | - Bernard Durand
- Laboratoire de Physique et Mécanique Textile, Université de Haute Alsace; École Nationale Supérieure d'Ingénieurs du Sud Alsace; 11 rue Alfred Werner 68093 Mulhouse Cedex France
| | - Jose-Ramon Sarasua
- Department of Mining-Metallurgy Engineering and Materials Science, School of Engineering; University of the Basque Country (UPV/EHU); Alameda de Urquijo s/n 48013 Bilbao Spain
| | - Gaétan Laroche
- Laboratoire d'Ingénierie de Surface, Centre de Recherche sur les Matériaux Avancés, Département de génie des mines, de la métallurgie et des matériaux; Université Laval; 1065, avenue de la Médecine Québec City Canada G1V 0A6
- Axe Médecine Régénératrice, Centre de recherche du CHU de Québec; Hôpital St François d'Assise; 10, rue de l'Espinay Québec City Canada G1L 3L5
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86
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Serrano MC, Nardecchia S, Gutiérrez MC, Ferrer ML, del Monte F. Mammalian cell cryopreservation by using liquid marbles. ACS APPLIED MATERIALS & INTERFACES 2015; 7:3854-3860. [PMID: 25610989 DOI: 10.1021/acsami.5b00072] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Liquid marbles (LMs) are nonsticky droplets covered by micro- or nanometrically scaled particles and obtained by simply rolling small amounts of a liquid in a very hydrophobic powder. Since pioneer work by Aussillous and Quéré, a wide palette of hydrophobic materials for the preparation of LMs, as well as potential applications, have been reported. Because of the bioinspired origin of this concept, the applicability of LMs in biomedicine is gaining increasing attention, with remarkable advances in their use as microbioreactors for blood typing, drug screening, and tumor growth, among others. Herein, we explore the novel use of LMs as a biotechnological tool for the cryopreservation of mammalian cells as an alternative to conventional methods, which typically require the use of cryopreservant agents that commonly associate with some degree of cell toxicity. Murine L929 fibroblasts, a reference cell line for cytotoxicity studies, and poly(tetrafluoroethylene), a hydrophobic polymer widely used in cardiovascular surgery, were selected for the preparation of the cell-containing LMs. Our results reveal that there is a safe range of droplet volumes and cell densities that can be successfully used to cryopreserve mammalian cell lines and recover them after thawing without significantly affecting major cellular parameters such as adhesion, morphology, viability, proliferation, and cell cycle. We envision that progress in the exploration of cell-containing LMs could also open their impact as microreactors for the miniaturization of cytotoxicity procedures of drugs and materials in which powerful tools for cell evaluation such as flow cytometry could be used because of the elevated amount of cells handled.
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Affiliation(s)
- M Concepción Serrano
- Instituto de Ciencia de Materiales de Madrid, Consejo Superior de Investigaciones Científicas (CSIC) , C/Sor Juana Inés de la Cruz 3, 28049 Madrid, Spain
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87
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Evaluation of Lapatinib Powder-Entrapped Biodegradable Polymeric Microstructures Fabricated by X-Ray Lithography for a Targeted and Sustained Drug Delivery System. MATERIALS 2015; 8:519-534. [PMID: 28787954 PMCID: PMC5455267 DOI: 10.3390/ma8020519] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/01/2014] [Revised: 01/16/2015] [Accepted: 01/30/2015] [Indexed: 01/09/2023]
Abstract
An oral medication of a molecular targeted drug, lapatinib, is taken regularly to maintain the drug concentration within the desired therapeutic levels. To alleviate the need for such cumbersome administration schedules in several drugs, advanced drug delivery systems (DDSs), which can provide time-controlled and sustained drug release, have recently received significant attention. A biodegradable synthetic polymer, such as polycaprolactone (PCL), is usually used as a carrier material for DDSs. In this paper, lapatinib powder-entrapped, PCL microstructures were fabricated with a precise X-ray lithography-based method. In vitro experiments on HER2 positive-human gastric cancer derived NCI-N87 cells were performed to appraise the drug release characteristics of the fabricated DDSs. The in vitro results indicate that after the X-ray lithography process, the lapatinib powder is still working well and show time- and dose- dependent drug release efficiencies. The cell growth inhibition characteristics of one hundred 40-μm sized microstructures were similar to those of a 1 μM lapatinib solution for over 144 h. In conclusion, the developed lapatinib-entrapped PCL microstructures can be used in molecular targeted delivery and sustained release as effective cancer-targeted DDSs.
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88
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Asadian M, Rashidi A, Majidi M, Mehrjoo M, Emami BA, Tavassoli H, Asl MP, Bonakdar S. Nanofiber protein adsorption affected by electrospinning physical processing parameters. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2015. [DOI: 10.1007/s13738-014-0569-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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89
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Ren X, Feng Y, Guo J, Wang H, Li Q, Yang J, Hao X, Lv J, Ma N, Li W. Surface modification and endothelialization of biomaterials as potential scaffolds for vascular tissue engineering applications. Chem Soc Rev 2015; 44:5680-742. [DOI: 10.1039/c4cs00483c] [Citation(s) in RCA: 359] [Impact Index Per Article: 39.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This review highlights the recent developments of surface modification and endothelialization of biomaterials in vascular tissue engineering applications.
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Affiliation(s)
- Xiangkui Ren
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
- Collaborative Innovation Center of Chemical Science and Chemical Engineering (Tianjin)
| | - Yakai Feng
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
- Collaborative Innovation Center of Chemical Science and Chemical Engineering (Tianjin)
| | - Jintang Guo
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
- Collaborative Innovation Center of Chemical Science and Chemical Engineering (Tianjin)
| | - Haixia Wang
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
| | - Qian Li
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
| | - Jing Yang
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
| | - Xuefang Hao
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
| | - Juan Lv
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
| | - Nan Ma
- Institute of Chemistry and Biochemistry
- Free University of Berlin
- D-14195 Berlin
- Germany
| | - Wenzhong Li
- Department of Cardiac Surgery
- University of Rostock
- D-18057 Rostock
- Germany
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90
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Kirchmajer DM, Gorkin III R, in het Panhuis M. An overview of the suitability of hydrogel-forming polymers for extrusion-based 3D-printing. J Mater Chem B 2015; 3:4105-4117. [DOI: 10.1039/c5tb00393h] [Citation(s) in RCA: 211] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this review hydrogel-forming polymers that are suitable for extrusion-based 3D printing are evaluated.
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Affiliation(s)
- D. M. Kirchmajer
- Soft Materials Group
- School of Chemistry
- University of Wollongong
- Wollongong
- Australia
| | - R. Gorkin III
- Intelligent Polymer Research Institute
- ARC Centre of Excellence for Electromaterials Science
- AIIM Facility
- University of Wollongong
- Australia
| | - M. in het Panhuis
- Soft Materials Group
- School of Chemistry
- University of Wollongong
- Wollongong
- Australia
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91
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Deng Z, Yin B, Li W, Liu J, Yang J, Zheng T, Zhang D, Yu H, Liu X, Ma J. Surface characteristics of and in vitro behavior of osteoblast-like cells on titanium with nanotopography prepared by high-energy shot peening. Int J Nanomedicine 2014; 9:5565-73. [PMID: 25489244 PMCID: PMC4257054 DOI: 10.2147/ijn.s71625] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND AND METHODS Commercial pure titanium with nanotopography was prepared via a high-energy shot-peening (HESP) technique. The surface characteristics were evaluated, and the preliminary cell responses to the nanotopographical surface were investigated. RESULTS The nanotopographical surface layer on titanium was successfully processed by HESP. The average nanoscale grains were approximately 60 nm in diameter and they were nonhomogeneously distributed on the surface. MG-63 cells with an osteogenic phenotype were well adhered and well spread on the nanostructured surface. Compared to the original polished control, the nanotopographical surface highly improved the adhesion, viability, and differentiation of MG-63 cells. CONCLUSION Titanium with nanotopography achieved by HESP has good cytocompatibility and shows promise for dental implant applications.
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Affiliation(s)
- Zhennan Deng
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, Zhejiang, People's Republic of China ; State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, People's Republic of China
| | - Baodi Yin
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, Zhejiang, People's Republic of China
| | - Weihong Li
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, Zhejiang, People's Republic of China
| | - Jinsong Liu
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, Zhejiang, People's Republic of China
| | - Jingyuan Yang
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, Zhejiang, People's Republic of China
| | - Tieli Zheng
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, Zhejiang, People's Republic of China
| | - Dafeng Zhang
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, Zhejiang, People's Republic of China
| | - Haiyang Yu
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, People's Republic of China
| | - Xiaoguang Liu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, Sichuan, People's Republic of China
| | - Jianfeng Ma
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, Zhejiang, People's Republic of China
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92
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Duan HY, Ye L, Wu X, Guan Q, Yang XF, Han F, Liang N, Wang ZF, Wang ZG. The in vivo characterization of electrospun heparin-bonded polycaprolactone in small-diameter vascular reconstruction. Vascular 2014; 23:358-65. [PMID: 25208900 DOI: 10.1177/1708538114550737] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Objective To evaluate the possibility of using heparin-bonded polycaprolactone grafts to replace small-diameter arteries. Methods Polycaprolactone was bonded with heparin. The activated partial thromboplastin time of heparin-bonded polycaprolactone grafts was determined in vitro. Small-diameter grafts were electrospun with heparin-bonded polycaprolactone and polycaprolactone and were implanted in dogs to substitute part of the femoral artery. Angiography was used to investigate the patency and aneurysm of the grafts after transplantation. After angiography, the patent grafts were explanted for histology analysis. The degradation of the grafts and the collagen content of the grafts were measured. Results Activated partial thromboplastin time tests in vitro showed that heparin-bonded polycaprolactone grafts exhibit obvious anticoagulation. Arteriography showed that two heparin-bonded polycaprolactone and three polycaprolactone grafts were obstructed. Other grafts were patent, without aneurysm formation. Histological analysis showed that the tested grafts degraded evidently over the implantation time and that the luminal surface of the tested grafts had become covered by endothelial cells. Collagen deposition in heparin-bonded polycaprolactone increased with time. There were no calcifications in the grafts. Gel permeation chromatography showed the heparin-bonded polycaprolactone explants at 12 weeks lose about 32% for Mw and 24% for Mn. The collagen content on the heparin-bonded polycaprolactone grafts increased over time. Conclusion This preliminary study demonstrates that heparin-bonded polycaprolactone is a suitable graft for small artery reconstruction. However, heparin-bonded polycaprolactone degrades more rapidly than polycaprolactone in vivo.
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Affiliation(s)
- Hong-Yong Duan
- Department of Vascular Surgery, Shanxi Provincial People’s Hospital, Taiyuan, PR China
| | - Lin Ye
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, PR China
| | - Xin Wu
- Department of Vascular Surgery, Xuanwu Hospital, Capital Medical University, Beijing, PR China
| | - Qiang Guan
- Department of Vascular Surgery, Shanxi Provincial People’s Hospital, Taiyuan, PR China
| | - Xiao-Fei Yang
- Department of Vascular Surgery, Shanxi Provincial People’s Hospital, Taiyuan, PR China
| | - Feng Han
- Department of Vascular Surgery, Shanxi Provincial People’s Hospital, Taiyuan, PR China
| | - Ning Liang
- Department of Vascular Surgery, Shanxi Provincial People’s Hospital, Taiyuan, PR China
| | - Zhen-Feng Wang
- Department of Vascular Surgery, Shanxi Provincial People’s Hospital, Taiyuan, PR China
| | - Zhong-Gao Wang
- Department of Vascular Surgery, Xuanwu Hospital, Capital Medical University, Beijing, PR China
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93
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Structurally engineered anodic alumina nanotubes as nano-carriers for delivery of anticancer therapeutics. Biomaterials 2014; 35:5517-26. [DOI: 10.1016/j.biomaterials.2014.03.059] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2014] [Accepted: 03/21/2014] [Indexed: 01/22/2023]
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94
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Lee SJ, Yoo JJ, Atala A. Recent Applications of Polymeric Biomaterials and Stem Cells in Tissue Engineering and Regenerative Medicine. POLYMER-KOREA 2014. [DOI: 10.7317/pk.2014.38.2.113] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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95
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Solvent induced phase inversion-based in situ forming controlled release drug delivery implants. J Control Release 2014; 176:8-23. [DOI: 10.1016/j.jconrel.2013.12.020] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2013] [Revised: 12/17/2013] [Accepted: 12/19/2013] [Indexed: 01/04/2023]
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96
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Matesanz MC, Feito MJ, Oñaderra M, Ramírez-Santillán C, da Casa C, Arcos D, Vallet-Regí M, Rojo JM, Portolés MT. Early in vitro response of macrophages and T lymphocytes to nanocrystalline hydroxyapatites. J Colloid Interface Sci 2014; 416:59-66. [DOI: 10.1016/j.jcis.2013.10.045] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2013] [Revised: 10/23/2013] [Accepted: 10/24/2013] [Indexed: 12/18/2022]
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97
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Barlas FB, Ag Seleci D, Ozkan M, Demir B, Seleci M, Aydin M, Tasdelen MA, Zareie HM, Timur S, Ozcelik S, Yagci Y. Folic acid modified clay/polymer nanocomposites for selective cell adhesion. J Mater Chem B 2014; 2:6412-6421. [DOI: 10.1039/c4tb00850b] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
A promising material, a folic acid modified poly(epsilon-caprolactone)/clay nanocomposite that allows selective cell adhesion and proliferation, was synthesized and characterized as a cell culture and biosensing platform.
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Affiliation(s)
- F. B. Barlas
- Department of Biochemistry
- Faculty of Science
- Ege University
- Izmir, Turkey
| | - D. Ag Seleci
- Department of Biochemistry
- Faculty of Science
- Ege University
- Izmir, Turkey
| | - M. Ozkan
- Department of Chemistry
- Faculty of Science
- Izmir Institute of Technology
- Izmir, Turkey
| | - B. Demir
- Department of Biochemistry
- Faculty of Science
- Ege University
- Izmir, Turkey
| | - M. Seleci
- Department of Biochemistry
- Faculty of Science
- Ege University
- Izmir, Turkey
| | - M. Aydin
- Department of Chemistry
- Istanbul Technical University
- Istanbul 34469, Turkey
| | - M. A. Tasdelen
- Department of Chemistry
- Istanbul Technical University
- Istanbul 34469, Turkey
- Department of Polymer Engineering
- Faculty of Engineering
| | - H. M. Zareie
- Department of Materials Science and Engineering
- Izmir Institute of Technology
- Izmir, Turkey
- Institute for Nanoscale Technology
- University of Technology
| | - S. Timur
- Department of Biochemistry
- Faculty of Science
- Ege University
- Izmir, Turkey
- Ege University
| | - S. Ozcelik
- Department of Chemistry
- Faculty of Science
- Izmir Institute of Technology
- Izmir, Turkey
| | - Y. Yagci
- Department of Chemistry
- Istanbul Technical University
- Istanbul 34469, Turkey
- Center of Excellence for Advanced Materials Research (CEAMR)
- Department of Chemistry
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98
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Walker J, Shadanbaz S, Woodfield TBF, Staiger MP, Dias GJ. The
in vitro
and
in vivo
evaluation of the biocompatibility of Mg alloys. Biomed Mater 2013; 9:015006. [DOI: 10.1088/1748-6041/9/1/015006] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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99
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Luengo Y, Nardecchia S, Morales MP, Serrano MC. Different cell responses induced by exposure to maghemite nanoparticles. NANOSCALE 2013; 5:11428-37. [PMID: 23963338 DOI: 10.1039/c3nr02148c] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Recent advances in nanotechnology have permitted the development of a wide repertoire of inorganic magnetic nanoparticles (NPs) with extensive promise for biomedical applications. Despite this remarkable potential, many questions still arise concerning the biocompatible nature of NPs when in contact with biological systems. Herein, we have investigated how controlled changes in the physicochemical properties of iron oxide NPs at their surface (i.e., surface charge and hydrodynamic size) affect, first, their interaction with cell media components and, subsequently, cell responses to NP exposure. For that purpose, we have prepared iron oxide NPs with three different coatings (i.e., dimercaptosuccinic acid - DMSA, (3-aminopropyl)triethoxysilane - APS and dextran) and explored the response of two different cell types, murine L929 fibroblasts and human Saos-2 osteoblasts, to their exposure. Interestingly, different cell responses were found depending on the NP concentration, surface charge and cell type. In this sense, neutral NPs, as those coated with dextran, induced negligible cell damage, as their cellular internalization was significantly reduced. In contrast, surface-charged NPs (i.e., those coated with DMSA and APS) caused significant cellular changes in viability, morphology and cell cycle under certain culture conditions, as a result of a more active cellular internalization. These results also revealed a particular cellular ability to detect and remember the original physicochemical properties of the NPs, despite the formation of a protein corona when incubated in culture media. Overall, conclusions from these studies are of crucial interest for future biomedical applications of iron oxide NPs.
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Affiliation(s)
- Yurena Luengo
- Instituto de Ciencia de Materiales de Madrid (ICMM), Consejo Superior de Investigaciones Científicas (CSIC), Calle Sor Juana Inés de la Cruz 3, 28049-Madrid, Spain.
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100
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Neo YP, Swift S, Ray S, Gizdavic-Nikolaidis M, Jin J, Perera CO. Evaluation of gallic acid loaded zein sub-micron electrospun fibre mats as novel active packaging materials. Food Chem 2013; 141:3192-200. [DOI: 10.1016/j.foodchem.2013.06.018] [Citation(s) in RCA: 115] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2013] [Revised: 05/02/2013] [Accepted: 06/04/2013] [Indexed: 11/26/2022]
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