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Novel hybrid composites based on double-decker silsesquioxanes functionalized by methacrylate derivatives and polyvinyl alcohol as potential materials utilized in biomedical applications. BIOMATERIALS ADVANCES 2023; 146:213290. [PMID: 36682203 DOI: 10.1016/j.bioadv.2023.213290] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 01/04/2023] [Accepted: 01/12/2023] [Indexed: 01/15/2023]
Abstract
The use of diverse biomaterials for regenerative medicine is constantly evolving. Therefore, looking for easy-to-scale-up materials in terms of preparation, less complex composition, and featuring structural and chemical stability seems justified. In this work, we report the preparation of double-decker silsesquioxane-based (DDSQ-based) composites, which, according to our best knowledge, have never been used as biomaterials. A family of methacrylate-substituted DDSQs was obtained starting from the previously reported hydroxyalkyl double-decker silsesquioxanes. In the resulting hybrids, methacrylate groups are attached to each other's lateral silicon atoms of DDSQ in trans positions, providing an excellent geometry for forming thin layers. In contrast to pure organic methacrylates, the covalent bonding of methacrylate derivatives to inorganic silsesquioxane core improves mechanics, cell adhesion, and migration properties. Furthermore, to increase the hydrophilicity of the resulting DDSQ-based hybrids, polyvinyl alcohol (PVA) was added. The entire system forms an easy-to-obtain two-component (DDSQ-PVA) composite, which was subjected without any upgrading additives to biological tests later in the research. The resulting biomaterials fulfill the requirements for potential medical applications. Human fibroblasts growing on prepared hybrid composites are characterized by proper spindle-shaped morphology, proliferation, and activation status similar to control conditions (cells cultured on PVA), as well as increased adhesion and migration abilities. The obtained results suggest that the prepared biomaterials may be used in regenerative medicine in the future.
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2
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Surface Heparinization of a Magnesium-Based Alloy: A Comparison Study of Aminopropyltriethoxysilane (APTES) and Polyamidoamine (PAMAM) Dendrimers. J Funct Biomater 2022; 13:jfb13040296. [PMID: 36547556 PMCID: PMC9786707 DOI: 10.3390/jfb13040296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 11/19/2022] [Accepted: 11/24/2022] [Indexed: 12/15/2022] Open
Abstract
Magnesium (Mg)-based alloys are biodegradable metallic biomaterials that show promise in minimizing the risks of permanent metallic implants. However, their clinical applications are restricted due to their rapid in vivo degradation and low surface hemocompatibilities. Surface modifications are critically important for controlling the corrosion rates of Mg-based alloys and improving their hemocompatibilities. In the present study, two heparinization methods were developed to simultaneously increase the corrosion resistance and hemocompatibility of the AZ31 Mg alloy. In the first method, the surface of the AZ31 alloy was modified by alkali-heat treatment and then aminolyzed by 3-amino propyltriethoxy silane (APTES), a self-assembly molecule, and heparin was grafted onto the aminolyzed surface. In the second method, before heparinization, polyamidoamine dendrimers (PAMAM4-4) were grafted onto the aminolyzed surface with APTES to increase the number of surface functional groups, and heparinization was subsequently performed. The presence of a peak with a wavelength of about 1560 cm-1 in the FTIR spectrum for the sample modified with APTES and dendrimers indicated aminolysis of the surface. The results indicated that the corrosion resistance of the Mg alloy was significantly improved as a result of the formation of a passive layer following the alkali-heat treatment. The results obtained from a potentiodynamic polarization (PDP) test showed that the corrosion current in the uncoated sample decreased from 25 µA to 3.7 µA in the alkali-heat-treated sample. The corrosion current density was reduced by 14 and 50 times in samples treated with the self-assembly molecules, APTES and dendrimers, respectively. After heparinization, the clotting time for pristine Mg was greatly improved. Clotting time increased from 480 s for the pristine Mg sample to 630 s for the APTES- and heparin-modified samples and to 715 s for the PAMAM- and heparin-modified samples. Cell culture data showed a slight improvement in the cell-supporting behavior of the modified samples.
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3
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Li C, Zhou Y, Liu S, Guo R, Lu C, Yin D, Zhang Y, Xu X, Dong N, Shi J. Surface Modification of Decellularized Heart Valve by the POSS-PEG Hybrid Hydrogel to Prepare a Composite Scaffold Material with Anticalcification Potential. ACS APPLIED BIO MATERIALS 2022; 5:3923-3935. [PMID: 35867892 DOI: 10.1021/acsabm.2c00449] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Tissue-engineered heart valves (TEHVs) are the most promising replacement for heart valve transplantation. Decellularized heart valve (DHV) is one of the most common scaffold materials for TEHVs. In actual clinical applications, the most widely used method for treating DHV is cross-linking it with glutaraldehyde, but this method could cause serious problems such as calcification. In this study, we introduced polyhedral oligomeric silsesquioxane (POSS) nanoparticles into a poly(ethylene glycol) (PEG) hydrogel to prepare a POSS-PEG hybrid hydrogel, and then coated them on the surface of DHV to prepare the composite scaffold. The chemical structures, microscopic morphologies, cell compatibilities, blood compatibilities, and anticalcification properties were further investigated. Experimental results showed that the composite scaffold had good blood compatibility and excellent cell compatibility and could promote cell adhesion and proliferation. In vivo and in vitro anticalcification experiments showed that the introduction of POSS nanoparticles could reduce the degree of calcification significantly and the composite scaffold had obvious anticalcification ability. The DHV surface-coated with the POSS-PEG hybrid hydrogel is an alternative scaffold material with anticalcification potential for an artificial heart valve, which provides an idea for the preparation of TEHVs.
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Affiliation(s)
- Chuang Li
- State Key Laboratory of Biocatalysis and Enzyme Engineering & Collaborative Innovation Center for Advanced Organic Chemical Materials Co-Constructed by the Province and Ministry, Hubei University, Wuhan 430062, China
| | - Ying Zhou
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Siju Liu
- State Key Laboratory of Biocatalysis and Enzyme Engineering & Collaborative Innovation Center for Advanced Organic Chemical Materials Co-Constructed by the Province and Ministry, Hubei University, Wuhan 430062, China
| | - Renqi Guo
- State Key Laboratory of Biocatalysis and Enzyme Engineering & Collaborative Innovation Center for Advanced Organic Chemical Materials Co-Constructed by the Province and Ministry, Hubei University, Wuhan 430062, China
| | - Cuifen Lu
- State Key Laboratory of Biocatalysis and Enzyme Engineering & Collaborative Innovation Center for Advanced Organic Chemical Materials Co-Constructed by the Province and Ministry, Hubei University, Wuhan 430062, China
| | - Dan Yin
- State Key Laboratory of Biocatalysis and Enzyme Engineering & Collaborative Innovation Center for Advanced Organic Chemical Materials Co-Constructed by the Province and Ministry, Hubei University, Wuhan 430062, China
| | - Yuhong Zhang
- State Key Laboratory of Biocatalysis and Enzyme Engineering & Collaborative Innovation Center for Advanced Organic Chemical Materials Co-Constructed by the Province and Ministry, Hubei University, Wuhan 430062, China
| | - Xu Xu
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Nianguo Dong
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Jiawei Shi
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
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4
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Ataee B, Khorasani MT, Karimi M, Daliri-Joupari M. Surface modification of polyurethane/HCNT nanocomposite with octavinyl polyhedral oligomeric silsesquioxane as a heart valve material. INT J POLYM MATER PO 2021. [DOI: 10.1080/00914037.2021.1937160] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Boshra Ataee
- Department of Science and Research Branch, Islamic Azad University, Tehran, Iran
| | | | - Majid Karimi
- Polymerization Engineering Department, Iran Polymer and Petrochemical Institute, Tehran, Iran
| | - Morteza Daliri-Joupari
- Department of Animal, Avian and Marine Biotechnology, National Institute of Genetic Engineering and Biotechnology, Tehran, Iran
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5
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Yang L, Pijuan-Galito S, Rho HS, Vasilevich AS, Eren AD, Ge L, Habibović P, Alexander MR, de Boer J, Carlier A, van Rijn P, Zhou Q. High-Throughput Methods in the Discovery and Study of Biomaterials and Materiobiology. Chem Rev 2021; 121:4561-4677. [PMID: 33705116 PMCID: PMC8154331 DOI: 10.1021/acs.chemrev.0c00752] [Citation(s) in RCA: 64] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Indexed: 02/07/2023]
Abstract
The complex interaction of cells with biomaterials (i.e., materiobiology) plays an increasingly pivotal role in the development of novel implants, biomedical devices, and tissue engineering scaffolds to treat diseases, aid in the restoration of bodily functions, construct healthy tissues, or regenerate diseased ones. However, the conventional approaches are incapable of screening the huge amount of potential material parameter combinations to identify the optimal cell responses and involve a combination of serendipity and many series of trial-and-error experiments. For advanced tissue engineering and regenerative medicine, highly efficient and complex bioanalysis platforms are expected to explore the complex interaction of cells with biomaterials using combinatorial approaches that offer desired complex microenvironments during healing, development, and homeostasis. In this review, we first introduce materiobiology and its high-throughput screening (HTS). Then we present an in-depth of the recent progress of 2D/3D HTS platforms (i.e., gradient and microarray) in the principle, preparation, screening for materiobiology, and combination with other advanced technologies. The Compendium for Biomaterial Transcriptomics and high content imaging, computational simulations, and their translation toward commercial and clinical uses are highlighted. In the final section, current challenges and future perspectives are discussed. High-throughput experimentation within the field of materiobiology enables the elucidation of the relationships between biomaterial properties and biological behavior and thereby serves as a potential tool for accelerating the development of high-performance biomaterials.
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Affiliation(s)
- Liangliang Yang
- University
of Groningen, W. J. Kolff Institute for Biomedical Engineering and
Materials Science, Department of Biomedical Engineering, University Medical Center Groningen, A. Deusinglaan 1, 9713 AV Groningen, The Netherlands
| | - Sara Pijuan-Galito
- School
of Pharmacy, Biodiscovery Institute, University
of Nottingham, University Park, Nottingham NG7 2RD, U.K.
| | - Hoon Suk Rho
- Department
of Instructive Biomaterials Engineering, MERLN Institute for Technology-Inspired
Regenerative Medicine, Maastricht University, 6229 ER Maastricht, The Netherlands
| | - Aliaksei S. Vasilevich
- Department
of Biomedical Engineering, Eindhoven University
of Technology, 5600 MB Eindhoven, The Netherlands
| | - Aysegul Dede Eren
- Department
of Biomedical Engineering, Eindhoven University
of Technology, 5600 MB Eindhoven, The Netherlands
| | - Lu Ge
- University
of Groningen, W. J. Kolff Institute for Biomedical Engineering and
Materials Science, Department of Biomedical Engineering, University Medical Center Groningen, A. Deusinglaan 1, 9713 AV Groningen, The Netherlands
| | - Pamela Habibović
- Department
of Instructive Biomaterials Engineering, MERLN Institute for Technology-Inspired
Regenerative Medicine, Maastricht University, 6229 ER Maastricht, The Netherlands
| | - Morgan R. Alexander
- School
of Pharmacy, Boots Science Building, University
of Nottingham, University Park, Nottingham NG7 2RD, U.K.
| | - Jan de Boer
- Department
of Biomedical Engineering, Eindhoven University
of Technology, 5600 MB Eindhoven, The Netherlands
| | - Aurélie Carlier
- Department
of Cell Biology-Inspired Tissue Engineering, MERLN Institute for Technology-Inspired
Regenerative Medicine, Maastricht University, 6229 ER Maastricht, The Netherlands
| | - Patrick van Rijn
- University
of Groningen, W. J. Kolff Institute for Biomedical Engineering and
Materials Science, Department of Biomedical Engineering, University Medical Center Groningen, A. Deusinglaan 1, 9713 AV Groningen, The Netherlands
| | - Qihui Zhou
- Institute
for Translational Medicine, Department of Stomatology, The Affiliated
Hospital of Qingdao University, Qingdao
University, Qingdao 266003, China
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6
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Guo R, Zhou Y, Liu S, Li C, Lu C, Yang G, Nie J, Wang F, Dong NG, Shi J. Anticalcification Potential of POSS-PEG Hybrid Hydrogel as a Scaffold Material for the Development of Synthetic Heart Valve Leaflets. ACS APPLIED BIO MATERIALS 2021; 4:2534-2543. [PMID: 35014371 DOI: 10.1021/acsabm.0c01544] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Calcification of bioprosthetics is a primary challenge in the field of artificial heart valves and a main reason for biological heart valve prostheses failure. Recent advances in nanomaterial science have promoted the development of polymers with advantageous properties that are likely suitable for artificial heart valves. In this work, we developed a nanocomposite polymeric biomaterial POSS-PEG (polyhedral oligomeric silsesquioxane-polyethylene glycol) hybrid hydrogel, which not only has improved mechanical and surface properties but also excellent biocompatibility. The results of atomic force microscopy and in vivo animal experiments indicated that the content of POSS in the PEG matrix plays an important role on the surface and contributes to its biological properties, compared to the decellularized porcine aortic valve scaffold. Additionally, this modification leads to enhanced protection of the hydrogel from thrombosis. Furthermore, the introduction of POSS nanoparticles also gives the hydrogel a better calcification resistance efficacy, which was confirmed through in vitro tests and animal experiments. These findings indicate that POSS-PEG hybrid hydrogel is a potential material for functional heart valve prosthetics, and the use of POSS nanocomposites in artificial valves may offer potential long-term performance and durability advantages.
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Affiliation(s)
- Renqi Guo
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials & Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei University, Wuhan 430062, China
| | - Ying Zhou
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Siju Liu
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials & Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei University, Wuhan 430062, China
| | - Chuang Li
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials & Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei University, Wuhan 430062, China
| | - Cuifen Lu
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials & Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei University, Wuhan 430062, China
| | - Guichun Yang
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials & Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei University, Wuhan 430062, China
| | - Junqi Nie
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials & Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei University, Wuhan 430062, China
| | - Feiyi Wang
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials & Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei University, Wuhan 430062, China
| | - Nian-Guo Dong
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Jiawei Shi
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
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7
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Laird M, Herrmann N, Ramsahye N, Totée C, Carcel C, Unno M, Bartlett JR, Wong Chi Man M. Large Polyhedral Oligomeric Silsesquioxane Cages: The Isolation of Functionalized POSS with an Unprecedented Si
18
O
27
Core. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202010458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | | | | | - Cédric Totée
- ICGM Univ. Montpellier CNRS ENSCM Montpellier France
| | - Carole Carcel
- ICGM Univ. Montpellier CNRS ENSCM Montpellier France
| | - Masafumi Unno
- Department of Chemistry and Chemical Biology Graduate School of Science and Technology Gunma University Kiryu 376-8515 Gunma Japan
| | - John R. Bartlett
- Western Sydney University Locked Bag 1797 Penrith NSW 2751 Australia
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8
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Laird M, Herrmann N, Ramsahye N, Totée C, Carcel C, Unno M, Bartlett JR, Wong Chi Man M. Large Polyhedral Oligomeric Silsesquioxane Cages: The Isolation of Functionalized POSS with an Unprecedented Si 18 O 27 Core. Angew Chem Int Ed Engl 2021; 60:3022-3027. [PMID: 33043577 DOI: 10.1002/anie.202010458] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Indexed: 12/19/2022]
Abstract
The synthesis of organo-functionalized polyhedral oligomeric silsesquioxanes (POSS, (R-SiO1.5 )n , Tn ) is an area of significant activity. To date, T14 is the largest such cage synthesized and isolated as a single isomer. Herein, we report an unprecedented, single-isomer styryl-functionalized T18 POSS. Unambiguously identified among nine possible isomers by multinuclear solution NMR (1 H, 13 C, and 29 Si), MALDI-MS, FTIR, and computational studies, this is the largest single-isomer functionalized Tn compound isolated to date. A ring-strain model was developed to correlate the 29 Si resonances with the number of 6-, 5-, and/or 4-Si-atom rings that each non-equivalent Si atom is part of. The model successfully predicts the speciation of non-equivalent Si atoms in other families of Tn compounds, demonstrating its general applicability for assigning 29 Si resonances to Si atoms in cage silsesquioxanes and providing a useful tool for predicting Si-atom environments.
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Affiliation(s)
- Mathilde Laird
- ICGM, Univ. Montpellier, CNRS, ENSCM, Montpellier, France
| | | | | | - Cédric Totée
- ICGM, Univ. Montpellier, CNRS, ENSCM, Montpellier, France
| | - Carole Carcel
- ICGM, Univ. Montpellier, CNRS, ENSCM, Montpellier, France
| | - Masafumi Unno
- Department of Chemistry and Chemical Biology, Graduate School of Science and Technology, Gunma University, Kiryu, 376-8515, Gunma, Japan
| | - John R Bartlett
- Western Sydney University, Locked Bag 1797, Penrith, NSW, 2751, Australia
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9
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Kausar A. Polyurethane/polyhedral oligomeric silsesquioxane nanocomposite: trends and perspectives. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2021. [DOI: 10.1080/10601325.2020.1866437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Ayesha Kausar
- Nanosciences Division, National Center For Physics, Quaid-i-Azam University Campus, Islamabad, Pakistan
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10
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Laird M, Gaveau P, Trens P, Carcel C, Unno M, Bartlett JR, Wong Chi Man M. Post-synthesis modification of functionalised polyhedral oligomeric silsesquioxanes with encapsulated fluoride – enhancing reactivity of T 8-F POSS for materials synthesis. NEW J CHEM 2021. [DOI: 10.1039/d0nj06008a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The first successful approach for modifying poorly reactive POSS containing F− (T8-F) and incorporating intact T8-F within a nanohybrid material is described.
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Affiliation(s)
| | | | | | | | - Masafumi Unno
- Department of Chemistry and Chemical Biology
- Graduate School of Science and Technology
- Gunma University
- Kiryu 376-8515
- Japan
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11
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Zhang X, Meng Y, Shen W, Dou J, Liu R, Jin Q, Fang S. pH-responsive injectable polysaccharide hydrogels with self-healing, enhanced mechanical properties based on POSS. REACT FUNCT POLYM 2021. [DOI: 10.1016/j.reactfunctpolym.2020.104773] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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12
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Laird M, Van der Lee A, Dumitrescu DG, Carcel C, Ouali A, Bartlett JR, Unno M, Wong Chi Man M. Styryl-Functionalized Cage Silsesquioxanes as Nanoblocks for 3-D Assembly. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00119] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Mathilde Laird
- ICGM, Université de Montpellier, CNRS, ENSCM, 34095 Montpellier, France
| | - Arie Van der Lee
- Institut Européen des Membranes, Université de Montpellier, UMR 5632 CNRS ENSCM, 34095 Montpellier, France
| | - Dan G. Dumitrescu
- XRD2 Beamline, Elettra − Sincrotrone Trieste S.C.p.A., Strada Statale 14-km 163,5 in AREA Science Park, 34149 Basovizza, Trieste, Italy
| | - Carole Carcel
- ICGM, Université de Montpellier, CNRS, ENSCM, 34095 Montpellier, France
| | - Armelle Ouali
- ICGM, Université de Montpellier, CNRS, ENSCM, 34095 Montpellier, France
| | - John R. Bartlett
- Western Sydney University, Locked Bag 1797, Penrith, NSW 2751, Australia
| | - Masafumi Unno
- Department of Chemistry and Chemical Biology, Graduate School of Science and Technology, Gunma University, Kiryu 376-8515, Gunma, Japan
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13
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Jafari S, Hosseini Salekdeh SS, Solouk A, Yousefzadeh M. Electrospun polyethylene terephthalate (PET) nanofibrous conduit for biomedical application. POLYM ADVAN TECHNOL 2019. [DOI: 10.1002/pat.4768] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Sahar Jafari
- Biomedical Engineering DepartmentAmirkabir University of Technology (Tehran Polytechnic) Tehran Iran
| | | | - Atefeh Solouk
- Biomedical Engineering DepartmentAmirkabir University of Technology (Tehran Polytechnic) Tehran Iran
| | - Maryam Yousefzadeh
- Textile Engineering DepartmentAmirkabir University of Technology Tehran Iran
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14
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Zhang X, Shen W, Dou J, Meng Y, Fang S, Liu R. Enhanced mechanical properties and self‐healing behavior of PNIPAM nanocomposite hydrogel by using POSS as a physical crosslinker. J Appl Polym Sci 2019. [DOI: 10.1002/app.48486] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Xiaojing Zhang
- College of Materials and Chemical EngineeringZhengzhou University of Light Industry, Henan Provincial Key Laboratory of Surface and Interface Science Zhengzhou 450002 People's Republic of China
| | - Weiwei Shen
- College of Materials and Chemical EngineeringZhengzhou University of Light Industry, Henan Provincial Key Laboratory of Surface and Interface Science Zhengzhou 450002 People's Republic of China
| | - Jingcheng Dou
- College of Materials and Chemical EngineeringZhengzhou University of Light Industry, Henan Provincial Key Laboratory of Surface and Interface Science Zhengzhou 450002 People's Republic of China
| | - Yang Meng
- College of Materials and Chemical EngineeringZhengzhou University of Light Industry, Henan Provincial Key Laboratory of Surface and Interface Science Zhengzhou 450002 People's Republic of China
| | - Shaoming Fang
- College of Materials and Chemical EngineeringZhengzhou University of Light Industry, Henan Provincial Key Laboratory of Surface and Interface Science Zhengzhou 450002 People's Republic of China
| | - Ruixue Liu
- College of Materials and Chemical EngineeringZhengzhou University of Light Industry, Henan Provincial Key Laboratory of Surface and Interface Science Zhengzhou 450002 People's Republic of China
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15
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Argon plasma modification promotes adipose derived stem cells osteogenic and chondrogenic differentiation on nanocomposite polyurethane scaffolds; implications for skeletal tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 105:110085. [PMID: 31546386 PMCID: PMC6892254 DOI: 10.1016/j.msec.2019.110085] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Revised: 08/12/2019] [Accepted: 08/14/2019] [Indexed: 11/22/2022]
Abstract
Bone and cartilage craniofacial defects due to trauma or congenital deformities pose a difficult problem for reconstructive surgeons. Human adipose stem cells (ADSCs) can differentiate into bone and cartilage and together with suitable scaffolds could provide a promising system for skeletal tissue engineering. It has been suggested that nanomaterials can direct cell behavior depending on their surface nanotopographies. Thus, this study examined whether by altering a nanoscaffold surface using radiofrequency to excite gases, argon (Ar), nitrogen (N2) and oxygen (O2) with a single step technique, we could enhance the osteogenic and chondrogenic potential of ADSCs. At 24 h, Ar modification promoted the highest increase in ADSCs adhesion as indicated by upregulation of vinculin and focal adhesion kinase (FAK) expression compared to O2 and N2 scaffolds. Furthermore, ADSCs on Ar-modified nanocomposite polymer POSS-PCU scaffolds upregulated expression of bone markers, alkaline phosphatase, collagen I and osteocalcin after 3 weeks. Cartilage markers, aggrecan and collagen II, were also upregulated on Ar-modified scaffolds at the mRNA and protein level. Finally, all plasma treated scaffolds supported tissue ingrowth and angiogenesis after grafting onto the chick chorioallantoic membrane. Ar promoted greater expression of vascular endothelial growth factor and laminin in ovo compared to O2 and N2 scaffolds as shown by immunohistochemistry. This study provides an important understanding into which surface chemistries best support the osteogenic and chondrogenic differentiation of ADSCs that could be harnessed for regenerative skeletal applications. Argon surface modification is a simple tool that can promote ADSC skeletal differentiation that is easily amenable to translation into clinical practice. Bone and cartilage craniofacial defects due to trauma or congenital deformities pose a challenging problem for reconstructive surgeons. Nanomaterials can direct adipose derived stem cell (ADSC) differentiation depending on their surface nanotopographies. This study demonstrates that Argon surface modification improve the chondrogenesis and osteogenesis of ADSCs. Argon surface modification is a tool that can upregulate ADSC skeletal differentiation and is amenable to translation into clinical practice.
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16
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Zhang Q, Yang X, Deng R, Zhou L, Yu Y, Li Y. Synthesis and Near Infrared Luminescence Properties of a Series of Lanthanide Complexes with POSS Modified Ligands. Molecules 2019; 24:molecules24071253. [PMID: 30935030 PMCID: PMC6480010 DOI: 10.3390/molecules24071253] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 03/25/2019] [Accepted: 03/27/2019] [Indexed: 11/16/2022] Open
Abstract
A polyhedral oligomeric silsesquioxanes (POSS) modified 8-hydroxyquinoline derivative (denoted as Q-POSS) was synthesized and used as a ligand to coordinate with lanthanide ions to obtain a series of lanthanide complexes Ln(Q-POSS)₃ (Ln = Er3+, Yb3+, Nd3+). The as-prepared lanthanide complexes have been characterized by FT-IR, UV⁻Vis, and elemental analysis. All these complexes showed the characteristic near-infrared (NIR) luminescence originated from the corresponding lanthanide ions under excitation. Compared with the unmodified counterparts LnQ₃ (HQ = 8-hydroxyquinoline), the Ln(Q-POSS)₃ complexes showed obviously increased emission intensity, which was ascribed mainly to the steric-hindrance effects of the POSS moiety in the ligands. It is believed that the POSS group could suppress undesired excimer formation and intermolecular aggregation, thus decreasing the concentration quenching effect of the corresponding lanthanide complexes.
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Affiliation(s)
- Qingrui Zhang
- School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun 130000, China.
- Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China.
| | - Xiuyun Yang
- School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun 130000, China.
| | - Ruiping Deng
- Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China.
| | - Liang Zhou
- Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China.
| | - Yang Yu
- Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China.
| | - Yunhui Li
- School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun 130000, China.
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Custom-built electrostatics and supplementary bonding in the design of reinforced Collagen-g-P(methyl methacrylate-co-ethyl acrylate)/ nylon 66 core-shell fibers. J Mech Behav Biomed Mater 2018; 87:19-29. [DOI: 10.1016/j.jmbbm.2018.07.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Revised: 04/24/2018] [Accepted: 07/01/2018] [Indexed: 12/13/2022]
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18
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Zaredar Z, Askari F, Shokrolahi P. Polyurethane synthesis for vascular application. Prog Biomater 2018; 7:269-278. [PMID: 30349979 PMCID: PMC6304180 DOI: 10.1007/s40204-018-0101-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Accepted: 10/03/2018] [Indexed: 12/11/2022] Open
Abstract
Abstract Three polyurethane formulations were prepared on the basis of siloxane; two formulations contained 1% and 3% of a hydroxyl functionalized polyhedral oligomeric silsesquioxane [POSS (ROH)2] nano-particles (as a co-chain extender) and one was without nano-particle. Structures of the polyurethanes were characterized by FTIR and SEM. The effect of POSS nano-particles on properties of the synthesized PUs was examined for vascular applications by tensile test, contact angle, SEM, AFM and endothelial cells viability evaluation. Properties of the polyurethane with 1% POSS were compared with those of PU without POSS and the results showed 66% increase in the elongation-at-break, 53% increase in tensile strength and 33% increase in modulus, 9.45% increase in contact angle, 76.7% reduction in surface roughness and 9.46% increase in cell viability. It was also shown that a polyurethane containing 1% of POSS nano-particles in its structure developed the highest hydrophobicity, which resulted in its lowest potential for thrombosis. Graphical Abstract ![]()
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Affiliation(s)
- Zahra Zaredar
- Polymer Science Department, Iran Polymer and Petrochemical Institute, Tehran-Karaj Hwy, Tehran, 14977-13115, Iran
| | - Fahimeh Askari
- Polymer Science Department, Iran Polymer and Petrochemical Institute, Tehran-Karaj Hwy, Tehran, 14977-13115, Iran.
| | - Parvin Shokrolahi
- Biomaterials Department, Iran Polymer and Petrochemical Institute, Tehran-Karaj Hwy, Tehran, 14977-13115, Iran
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19
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Griffin M, Palgrave R, Baldovino-Medrano VG, Butler PE, Kalaskar DM. Argon plasma improves the tissue integration and angiogenesis of subcutaneous implants by modifying surface chemistry and topography. Int J Nanomedicine 2018; 13:6123-6141. [PMID: 30349241 PMCID: PMC6181122 DOI: 10.2147/ijn.s167637] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Tissue integration and vessel formation are important criteria for the successful implantation of synthetic biomaterials for subcutaneous implantation. OBJECTIVE We report the optimization of plasma surface modification (PSM) using argon (Ar), oxygen (O2) and nitrogen (N2) gases of a polyurethane polymer to enhance tissue integration and angiogenesis. METHODS The scaffold's bulk and surface characteristics were compared before and after PSM with either Ar, O2 and N2. The viability and adhesion of human dermal fibroblasts (HDFs) on the modified scaffolds were compared. The formation of extracellular matrix by the HDFs on the modified scaffolds was evaluated. Scaffolds were subcutaneously implanted in a mouse model for 3 months to analyze tissue integration, angiogenesis and capsule formation. RESULTS Surface analysis demonstrated that interfacial modification (chemistry, topography and wettability) achieved by PSM is unique and varies according to the gas used. O2 plasma led to extensive changes in interfacial properties, whereas Ar treatment caused moderate changes. N2 plasma caused the least effect on surface chemistry of the polymer. PSM-treated scaffolds significantly (P<0.05) enhanced HDF activity and growth over 21 days. Among all three gases, Ar modification showed the highest protein adsorption. Ar-modified scaffolds also showed a significant upregulation of adhesion-related proteins (vinculin, focal adhesion kinase, talin and paxillin; P<0.05) and extracellular matrix marker genes (collagen type I, fibronectin, laminin and elastin) and deposition of associated proteins by the HDFs. Subcutaneous implantation after 3 months demonstrated the highest tissue integration and angiogenesis and the lowest capsule formation on Ar-modified scaffolds compared with O2- and N2-modified scaffolds. CONCLUSION PSM using Ar is a cost-effective and efficient method to improve the tissue integration and angiogenesis of subcutaneous implants.
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Affiliation(s)
- Michelle Griffin
- UCL Centre for Nanotechnology and Regenerative Medicine, Division of Surgery and Interventional Science, University College London, London, UK,
- Royal Free London NHS Foundation Trust Hospital, London, UK
- The Charles Wolfson Center for Reconstructive Surgery, Royal Free London NHS Foundation Trust Hospital, London, UK
| | - Robert Palgrave
- Department of Chemistry, University College London, London, UK
| | | | - Peter E Butler
- UCL Centre for Nanotechnology and Regenerative Medicine, Division of Surgery and Interventional Science, University College London, London, UK,
- Royal Free London NHS Foundation Trust Hospital, London, UK
- The Charles Wolfson Center for Reconstructive Surgery, Royal Free London NHS Foundation Trust Hospital, London, UK
| | - Deepak M Kalaskar
- UCL Centre for Nanotechnology and Regenerative Medicine, Division of Surgery and Interventional Science, University College London, London, UK,
- UCL Institute of Orthopaedics and Musculoskeletal Science, Division of Surgery and Interventional Science, University College London, London, UK,
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Yu S, Zuo X, Shen T, Duan Y, Mao Z, Gao C. A density gradient of VAPG peptides on a cell-resisting surface achieves selective adhesion and directional migration of smooth muscle cells over fibroblasts. Acta Biomater 2018; 72:70-81. [PMID: 29635070 DOI: 10.1016/j.actbio.2018.04.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Revised: 03/15/2018] [Accepted: 04/02/2018] [Indexed: 12/19/2022]
Abstract
Selective adhesion and migration of smooth muscle cells (SMCs) over fibroblasts (FIBs) is required to prevent adventitia fibrosis in vascular regeneration. In this study, a uniform cell-resisting layer of poly(ethylene glycol) (PEG) with a density gradient of azide groups was generated on a substrate by immobilizing two kinds of PEG molecules in a gradient manner. A density gradient of alkynyl-functionalized Val-Ala-Pro-Gly (VAPG) peptides was then prepared on the PEG layer via click chemistry. The VAPG density gradient was characterized by fluorescence imaging, revealing the gradual enhancement of the fluorescent intensity along the substrate direction. The adhesion and mobility of SMCs were selectively enhanced on the VAPG density gradient, leading to directional migration toward the higher peptide density (up to 84%). In contrast, the adhesion and mobility of FIBs were significantly weakened. The net displacement of SMCs also significantly increased compared with that on tissue culture polystyrene (TCPS) and that of FIBs on the gradient. The mitogen-activated protein kinase (MAPK) signaling pathways related to cell migration were studied, showing higher expressions of functional proteins from SMCs on the VAPG-modified surface in a density-dependent manner. For the first time the selective adhesion and directional migration of SMCs over FIBs was achieved by an elaborative design of a gradient surface, leading to a new insight in design of novel vascular regenerative materials. STATEMENT OF SIGNIFICANCE Selective cell adhesion and migration guided by regenerative biomaterials are extremely important for the regeneration of targeted tissues, which can avoid the drawbacks of incorrect and uncontrolled responses of tissue cells to implants. For example, selectivity of smooth muscle cells (SMCs) over fibroblasts (FIBs) is required to prevent adventitia fibrosis in vascular regeneration. Herein we prepare a uniform cell-repelling layer, on which SMCs-selective Val-Ala-Pro-Gly (VAPG) peptides are immobilized in a continuous manner. Selective adhesion and enhanced and directional migration of SMCs over FIBs are achieved by the interplay of cell-repelling layer and gradient SMCs-selective VAPG peptides, paving a new way for the design of novel vascular grafts with enhanced biological performance.
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Adipurnama I, Yang MC, Ciach T, Butruk-Raszeja B. Surface modification and endothelialization of polyurethane for vascular tissue engineering applications: a review. Biomater Sci 2018; 5:22-37. [PMID: 27942617 DOI: 10.1039/c6bm00618c] [Citation(s) in RCA: 103] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Cardiovascular implants, especially vascular grafts made of synthetic polymers, find wide clinical applications in the treatment of cardiovascular diseases. However, cases of failure still exist, notably caused by restenosis and thrombus formation. Aiming to solve these problems, various approaches to surface modification of synthetic vascular grafts have been used to improve both the hemocompatibility and long-term patency of artificial vascular grafts. Surface modification using hydrophilic molecules can enhance hemocompatibility, but this may limit the initial vascular endothelial cell adhesion. Therefore, the improvement of endothelialization on these grafts with specific peptides and biomolecules is now an exciting field of research. In this review, several techniques to improve surface modification and endothelialization on vascular grafts, mainly polyurethane (PU) grafts, are summarized, together with the recent development and evolution of the different strategies: from the use of PEG, zwitterions, and polysaccharides to peptides and other biomolecules and genes; from in vitro endothelialization to in vivo endothelialization; and from bio-inert and bio-active to bio-mimetic approaches.
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Affiliation(s)
- Iman Adipurnama
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan.
| | - Ming-Chien Yang
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan.
| | - Tomasz Ciach
- Faculty of Chemical and Process Engineering, Warsaw University of Technology, Warsaw, Poland
| | - Beata Butruk-Raszeja
- Faculty of Chemical and Process Engineering, Warsaw University of Technology, Warsaw, Poland
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22
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Tonello S, Carniato F, Rizzi M, Migliario M, Rocchetti V, Marchese L, Renò F. Charged polyhedral oligomeric silsesquioxanes trigger in vitro METosis via both oxidative stress and autophagy. Life Sci 2017; 190:58-67. [DOI: 10.1016/j.lfs.2017.09.040] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Revised: 09/19/2017] [Accepted: 09/27/2017] [Indexed: 12/21/2022]
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Davoudi P, Assadpour S, Derakhshan MA, Ai J, Solouk A, Ghanbari H. Biomimetic modification of polyurethane-based nanofibrous vascular grafts: A promising approach towards stable endothelial lining. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 80:213-221. [DOI: 10.1016/j.msec.2017.05.140] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Revised: 05/24/2017] [Accepted: 05/28/2017] [Indexed: 12/20/2022]
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Interaction of polyhedral oligomeric silsesquioxanes and dipalmitoylphosphatidylcholine at the air/water interface: Thermodynamic and rheological study. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2017. [DOI: 10.1016/j.bbamem.2017.06.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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25
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Dutta Sinha S, Das S, Tarafdar S, Dutta T. Monitoring of Wild Pseudomonas Biofilm Strain Conditions Using Statistical Characterization of Scanning Electron Microscopy Images. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.7b01106] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Suparna Dutta Sinha
- Condensed Matter Physics Research Centre, Department of Physics, Jadavpur University, Kolkata−700032, India
| | - Saptarshi Das
- Department of Physics, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, U.K
- Department of Power
Engineering, Jadavpur University, Salt Lake Campus, LB-8, Sector 3, Kolkata−700098, India
| | - Sujata Tarafdar
- Condensed Matter Physics Research Centre, Department of Physics, Jadavpur University, Kolkata−700032, India
| | - Tapati Dutta
- Physics Department, St. Xavier’s College, Kolkata−700016, India
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Salehi-Nik N, Malaie-Balasi Z, Amoabediny G, Banikarimi SP, Zandieh-Doulabi B, Klein-Nulend J. Sustained release of growth hormone and sodium nitrite from biomimetic collagen coating immobilized on silicone tubes improves endothelialization. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 77:1204-1215. [PMID: 28531997 DOI: 10.1016/j.msec.2017.03.172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Revised: 12/28/2016] [Accepted: 03/20/2017] [Indexed: 10/19/2022]
Abstract
Biocompatibility of biomedical devices can be improved by endothelialization of blood-contacting parts mimicking the vascular endothelium's function. Improved endothelialization might be obtained by using biomimetic coatings that allow local sustained release of biologically active molecules, e.g. anti-thrombotic and growth-inducing agents, from nanoliposomes. We aimed to test whether incorporation of growth-inducing nanoliposomal growth hormone (nGH) and anti-thrombotic nanoliposomal sodium nitrite (nNitrite) into collagen coating of silicone tubes enhances endothelialization by stimulating endothelial cell proliferation and inhibiting platelet adhesion. Collagen coating stably immobilized on acrylic acid-grafted silicone tubes decreased the water contact angle from 102° to 56°. Incorporation of 50 or 500nmol/ml nNitrite and 100 or 1000ng/ml nGH into collagen coating decreased the water contact angle further to 48°. After 120h incubation, 58% nitrite and 22% GH of the initial amount of sodium nitrite and GH in nanoliposomes were gradually released from the nNitrite-nGH-collagen coating. Endothelial cell number was increased after surface coating of silicone tubes with collagen by 1.6-fold, and with nNitrite-nGH-collagen conjugate by 1.8-3.9-fold after 2days. After 6days, endothelial cell confluency in the absence of surface coating was 22%, with collagen coating 74%, and with nNitrite-nGH-collagen conjugate coating 83-119%. In the absence of endothelial cells, platelet adhesion was stimulated after collagen coating by 1.3-fold, but inhibited after nNitrite-nGH-collagen conjugate coating by 1.6-3.7-fold. The release of anti-thrombotic prostaglandin I2 from endothelial cells was stimulated after nNitrite-nGH-collagen conjugate coating by 1.7-2.2-fold compared with collagen coating. Our data shows improved endothelialization and blood compatibility using nNitrite-nGH-collagen conjugate coating on silicone tubes suggesting that these coatings are highly suitable for use in blood-contacting parts of biomedical devices.
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Affiliation(s)
- Nasim Salehi-Nik
- School of Chemical Engineering, College of Engineering, University of Tehran,111554563, Enqelab Avenue, Tehran, Iran; Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam, University of Amsterdam and VU University Amsterdam, MOVE Research Institute Amsterdam, Gustav Mahlerlaan 3008, 1081 LA Amsterdam, The Netherlands; Department of Tissue Engineering, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, 1985717443, Velenjak, Shahid Chamran Highway, Tehran, Iran.
| | - Zahra Malaie-Balasi
- Research Center for New Technologies in Life Science Engineering, University of Tehran,143951374, Enqelab Avenue, Tehran, Iran.
| | - Ghassem Amoabediny
- School of Chemical Engineering, College of Engineering, University of Tehran,111554563, Enqelab Avenue, Tehran, Iran; Research Center for New Technologies in Life Science Engineering, University of Tehran,143951374, Enqelab Avenue, Tehran, Iran.
| | - Seyedeh Parnian Banikarimi
- School of Chemical Engineering, College of Engineering, University of Tehran,111554563, Enqelab Avenue, Tehran, Iran; Research Center for New Technologies in Life Science Engineering, University of Tehran,143951374, Enqelab Avenue, Tehran, Iran.
| | - Behrouz Zandieh-Doulabi
- Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam, University of Amsterdam and VU University Amsterdam, MOVE Research Institute Amsterdam, Gustav Mahlerlaan 3008, 1081 LA Amsterdam, The Netherlands; Department of Tissue Engineering, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, 1985717443, Velenjak, Shahid Chamran Highway, Tehran, Iran.
| | - Jenneke Klein-Nulend
- Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam, University of Amsterdam and VU University Amsterdam, MOVE Research Institute Amsterdam, Gustav Mahlerlaan 3008, 1081 LA Amsterdam, The Netherlands; Department of Tissue Engineering, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, 1985717443, Velenjak, Shahid Chamran Highway, Tehran, Iran.
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Modification of electrospun poly(L-lactic acid)/polyethylenimine nanofibrous scaffolds for biomedical application. INT J POLYM MATER PO 2017. [DOI: 10.1080/00914037.2017.1320661] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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28
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Wulff B, Stahlhoff S, Vonthein R, Schmidt A, Sigler M, Torsello GB, Herten M. Biomimetic Heparan Sulfate-Like Coated ePTFE Grafts Reduce In-graft Neointimal Hyperplasia in Ovine Carotids. Ann Vasc Surg 2017; 40:274-284. [PMID: 28163179 DOI: 10.1016/j.avsg.2016.09.015] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Revised: 09/09/2016] [Accepted: 09/15/2016] [Indexed: 11/30/2022]
Abstract
BACKGROUND Thrombogenicity and neointimal hyperplasia are major causes for synthetic vascular graft failure. Bioactive coatings like heparin have improved patency by reducing thrombogenicity, but neointimal hyperplasia still remains an unsolved problem. Surface coatings with heparan sulfate (HS), the major component of the glycocalyx of endothelial cells, have shown reduced platelet and cell adhesion in vitro. The aim of the study was to evaluate the in vivo surface properties of expanded ePTFE vascular grafts with a semisynthetic HS-like coating (SSHS). METHODS ePTFE vascular grafts (n = 16, diameter 3.5 mm) covalently coated with SSHS were compared with uncoated grafts (n = 16) of the same diameter in a carotid interposition model in 16 sheep. The grafts were harvested at 20 wk for histological and morphometric analysis. RESULTS SSHS-coated grafts showed less neointima formation than uncoated grafts (P < 0.001). There was no evidence for cell or protein adhesion to SSHS-coated grafts, whereas the surface of uncoated ePTFE grafts was covered with a confluent circular layer of neointima. No difference was found concerning reactions at the anastomotic site of the genuine carotid vessel, both groups displayed neointimal hyperplasia. CONCLUSIONS ePTFE grafts covalently coated with a semisynthetic SSHS-glycosaminoglycan successfully mimicked the endothelial glycocalyx. They displayed excellent antiadhesive properties preventing neointimal formation on the graft surface. The results indicate that a biomimetic SSHS coating may be a useful component of bioengineered grafts and an alternative to synthetic surfaces and endothelial seeding.
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Affiliation(s)
- Birgit Wulff
- Clinic for Vascular and Endovascular Surgery, University Hospital Münster, Münster, Germany
| | - Stefan Stahlhoff
- Department of Vascular Surgery, St. Franziskus-Hospital GmbH Münster, Münster, Germany
| | - Reinhard Vonthein
- Institute of Medical Biometry and Statistics and Center for Clinical Trials, Campus Lübeck, University of Lübeck and University Medical Center Schleswig-Holstein, Lübeck, Germany
| | - Andreas Schmidt
- Department of Surgery, Agaplesion Diakonieklinikum Hamburg, Hamburg, Germany
| | - Matthias Sigler
- Department of Pediatric Cardiology and Intensive Care, Georg-August-University Göttingen, Göttingen, Germany
| | - Giovanni B Torsello
- Clinic for Vascular and Endovascular Surgery, University Hospital Münster, Münster, Germany; Department of Vascular Surgery, St. Franziskus-Hospital GmbH Münster, Münster, Germany
| | - Monika Herten
- Clinic for Vascular and Endovascular Surgery, University Hospital Münster, Münster, Germany.
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Mirmohammadi SA, Nekoomanesh-Haghighi M, Mohammadian Gezaz S, Bahri-Laleh N, Atai M. In-situ photocrosslinkable nanohybrid elastomer based on polybutadiene/polyhedral oligomeric silsesquioxane. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 68:530-539. [PMID: 27524051 DOI: 10.1016/j.msec.2016.06.027] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2016] [Revised: 05/21/2016] [Accepted: 06/07/2016] [Indexed: 10/21/2022]
Abstract
Hydroxyl functionalized nano-sized POSS or ethyleneglycol as diol monomers was incorporated to hydroxyl-terminated polybutadiene (HTPBD) chain in the presence of fumaryl chloride as extender. Blue light photocrosslinking system based on camphorquinone (photoinitiator) and dimethylaminoethyl methacrylate (accelerator) was applied to cure these two synthesized fumarate based macromers. Self-crosslinkability of unsaturated macromers and also crosslinking in presence of a reactive diluent were investigated in absence and presence of 1,4-butanediol dimethacrylate, respectively. Finally, photocured samples were characterized by XRD, SEM, equilibrium swelling study, TGA, DMTA, AFM and cell culture. The results showed that incorporation of POSS nanoparticle into the polymer matrix with a perfect distribution and dispersion can enhance thermal stability, mechanical and biocompatibility properties which can prove a good potential of this in-situ photocrosslinkable nanohybrid in medical applications.
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Affiliation(s)
- Seyed Amin Mirmohammadi
- Department of Polymerization Engineering, Iran Polymer and Petrochemical Institute (IPPI), P. O. Box: 14965/115, Tehran, Iran.
| | - Mehdi Nekoomanesh-Haghighi
- Department of Polymerization Engineering, Iran Polymer and Petrochemical Institute (IPPI), P. O. Box: 14965/115, Tehran, Iran.
| | | | - Naeimeh Bahri-Laleh
- Department of Polymerization Engineering, Iran Polymer and Petrochemical Institute (IPPI), P. O. Box: 14965/115, Tehran, Iran
| | - Mohammad Atai
- Department of Polymer Science, Iran Polymer and Petrochemical Institute (IPPI), P. O. Box: 14965/115, Tehran, Iran
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Hsieh SC, Chen HJ, Hsu SH, Yang YC, Tang CM, Chu MY, Lin PY, Fu RH, Kung ML, Chen YW, Yeh BW, Hung HS. Prominent Vascularization Capacity of Mesenchymal Stem Cells in Collagen-Gold Nanocomposites. ACS APPLIED MATERIALS & INTERFACES 2016; 8:28982-29000. [PMID: 27714998 DOI: 10.1021/acsami.6b09330] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The ideal characteristics of surface modification on the vascular graft for clinical application would be with excellent hemocompatibility, endothelialization capacity, and antirestenosis ability. Here, Fourier transform infrared spectroscopy (FTIR), surface enhanced Raman spectroscopy (SERS), atomic force microscopy (AFM), contact angle (θ) measurement, and thermogravimetric analysis (TGA) were used to evaluate the chemical and mechanical properties of collagen-gold nanocomposites (collagen+Au) with 17.4, 43.5, and 174 ppm of Au and suggested that the collagen+Au with 43.5 ppm of Au had better biomechanical properties and thermal stability than pure collagen. Besides, stromal-derived factor-1α (SDF-1α) at 50 ng/mL promoted the migration of mesenchymal stem cells (MSCs) on collagen+Au material through the α5β3 integrin/endothelial oxide synthase (eNOS)/metalloproteinase (MMP) signaling pathway which can be abolished by the knockdown of vascular endothelial growth factor (VEGF). The potentiality of collagen+Au with MSCs for vascular regeneration was evaluated by our in vivo rat model system. Artery tissues isolated from an implanted collagen+Au-coated catheter with MSCs expressed substantial CD-31 and α-SMA, displayed higher antifibrotic ability, antithrombotic activity, as well as anti-inflammatory response than all other materials. Our results indicated that the implantation of collagen+Au-coated catheters with MSCs could be a promising strategy for vascular regeneration.
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Affiliation(s)
- Shu-Chen Hsieh
- Department of Chemistry, National Sun Yat-Sen University , Kaohsiung, Taiwan, R.O.C
- Center for Stem Cell Research, Kaohsiung Medical University , Kaohsiung, Taiwan, R.O.C
- School of Pharmacy, College of Pharmacy, Kaohsiung Medical University , Kaohsiung, Taiwan, R.O.C
| | - Hui-Jye Chen
- Graduate Institute of Basic Medical Science, China Medical University , Taichung, Taiwan, R.O.C
| | - Shan-Hui Hsu
- Institute of Polymer Science and Engineering, National Taiwan University , Taipei, Taiwan, R.O.C
- Rehabilitation Engineering Research Center, National Taiwan University , Taipei, Taiwan, R.O.C
| | - Yi-Chin Yang
- Department of Neurosurgery, Taichung Veterans General Hospital , Taichung, Taiwan, R.O.C
| | - Cheng-Ming Tang
- Institute of Oral Sciences, Chung Shan Medical University , Taichung, Taiwan, R.O.C
| | - Mei-Yun Chu
- Graduate Institute of Basic Medical Science, China Medical University , Taichung, Taiwan, R.O.C
| | - Pei-Ying Lin
- Department of Chemistry, National Sun Yat-Sen University , Kaohsiung, Taiwan, R.O.C
| | - Ru-Huei Fu
- Graduate Institute of Immunology, China Medical University , Taichung, Taiwan, R.O.C
| | - Mei-Lang Kung
- Department of Chemistry, National Sun Yat-Sen University , Kaohsiung, Taiwan, R.O.C
| | - Yun-Wen Chen
- Department of Pharmacology, National Cheng Kung University , Tainan, Taiwan, R.O.C
| | - Bi-Wen Yeh
- Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung Medical University , Kaohsiung, Taiwan, R.O.C
| | - Huey-Shan Hung
- Graduate Institute of Basic Medical Science, China Medical University , Taichung, Taiwan, R.O.C
- Translational Medicine Research, China Medical University Hospital , Taichung, Taiwan, R.O.C
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31
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Carson D, Hnilova M, Yang X, Nemeth CL, Tsui JH, Smith AS, Jiao A, Regnier M, Murry CE, Tamerler C, Kim DH. Nanotopography-Induced Structural Anisotropy and Sarcomere Development in Human Cardiomyocytes Derived from Induced Pluripotent Stem Cells. ACS APPLIED MATERIALS & INTERFACES 2016; 8:21923-32. [PMID: 26866596 PMCID: PMC5681855 DOI: 10.1021/acsami.5b11671] [Citation(s) in RCA: 124] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/14/2023]
Abstract
Understanding the phenotypic development of human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) is a prerequisite to advancing regenerative cardiac therapy, disease modeling, and drug screening applications. Lack of consistent hiPSC-CM in vitro data can be largely attributed to the inability of conventional culture methods to mimic the structural, biochemical, and mechanical aspects of the myocardial niche accurately. Here, we present a nanogrid culture array comprised of nanogrooved topographies, with groove widths ranging from 350 to 2000 nm, to study the effect of different nanoscale structures on the structural development of hiPSC-CMs in vitro. Nanotopographies were designed to have a biomimetic interface, based on observations of the oriented myocardial extracellular matrix (ECM) fibers found in vivo. Nanotopographic substrates were integrated with a self-assembling chimeric peptide containing the Arg-Gly-Asp (RGD) cell adhesion motif. Using this platform, cell adhesion to peptide-coated substrates was found to be comparable to that of conventional fibronectin-coated surfaces. Cardiomyocyte organization and structural development were found to be dependent on the nanotopographical feature size in a biphasic manner, with improved development achieved on grooves in the 700-1000 nm range. These findings highlight the capability of surface-functionalized, bioinspired substrates to influence cardiomyocyte development, and the capacity for such platforms to serve as a versatile assay for investigating the role of topographical guidance cues on cell behavior. Such substrates could potentially create more physiologically relevant in vitro cardiac tissues for future drug screening and disease modeling studies.
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Affiliation(s)
- Daniel Carson
- Department of Bioengineering, University of Washington, Seattle, Washington 98195, United States
| | - Marketa Hnilova
- Department of Materials Science and Engineering, University of Washington, Seattle, Washington 98195, United States
| | - Xiulan Yang
- Department of Pathology, University of Washington, Seattle, Washington 98195, United States
- Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, Washington 98109, United States
| | - Cameron L. Nemeth
- Department of Bioengineering, University of Washington, Seattle, Washington 98195, United States
| | - Jonathan H. Tsui
- Department of Bioengineering, University of Washington, Seattle, Washington 98195, United States
| | - Alec S.T. Smith
- Department of Bioengineering, University of Washington, Seattle, Washington 98195, United States
| | - Alex Jiao
- Department of Bioengineering, University of Washington, Seattle, Washington 98195, United States
| | - Michael Regnier
- Department of Bioengineering, University of Washington, Seattle, Washington 98195, United States
- Center for Cardiovascular Biology, University of Washington, Seattle, Washington 98109, United States
- Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, Washington 98109, United States
| | - Charles E. Murry
- Department of Bioengineering, University of Washington, Seattle, Washington 98195, United States
- Department of Pathology, University of Washington, Seattle, Washington 98195, United States
- Center for Cardiovascular Biology, University of Washington, Seattle, Washington 98109, United States
- Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, Washington 98109, United States
| | - Candan Tamerler
- Department of Materials Science and Engineering, University of Washington, Seattle, Washington 98195, United States
- Department of Mechanical Engineering and Bioengineering Research Center, University of Kansas, Lawrence, Kansas 66045, United States
| | - Deok-Ho Kim
- Department of Bioengineering, University of Washington, Seattle, Washington 98195, United States
- Center for Cardiovascular Biology, University of Washington, Seattle, Washington 98109, United States
- Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, Washington 98109, United States
- Corresponding Author: . Phone: 1-206-616-1133. Fax: 1-206-685-3300
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Chaves C, Alshomer F, Palgrave RG, Kalaskar DM. Plasma Surface Modification of Polyhedral Oligomeric Silsequioxane-Poly(carbonate-urea) Urethane with Allylamine Enhances the Response and Osteogenic Differentiation of Adipose-Derived Stem Cells. ACS APPLIED MATERIALS & INTERFACES 2016; 8:18701-18709. [PMID: 27384590 DOI: 10.1021/acsami.6b05788] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
This study present amino functionalization of biocompatible polymer polyhedral oligomeric silsequioxane-poly(carbonate-urea) urethane (POSS-PCU) using plasma polymerization process to induce osteogenic differentiation of adipose derived stem cells (ADSCs). Optimization of plasma polymerization process was carried out keeping cell culture application in mind. Thus, samples were rigorously tested for retention of amino groups under both dry and wet conditions. Physio-chemical characterization was carried out using ninhydrin test, X-ray photon spectroscopy, scanning electron microscopy, and static water contact analysis. Results from physio chemical characterization shows that functionalization of the amino group is not stable under wet conditions and optimization of plasma process is required for stable bonding of amino groups to the POSS-PCU polymer. Optimized samples were later tested in vitro in short and long-term culture to study differentiation of ADSCs on amino modified samples. Short-term cell culture shows that initial cell attachment was significantly (p < 0.001) improved on amine modified samples (NH2-POSS-PCU) compared to unmodified POSS-PCU. NH2-POSS-PCU samples also facilitates osteogenic differentiation of ADSCs as confirmed by immunological staining of cells for extracellular markers such as collagen Type I and osteopontin. Quantification of total collagen and ALP activity also shows significant (p < 0.001) increase on NH2-POSS-PCU samples compared to unmodified POSS-PCU. A pilot study also confirms that these optimized amino modified POSS-PCU samples can further be functionalized using bone inducing peptide such as KRSR using conventional wet chemistry. This further provides an opportunity for biofunctionalization of the polymer for various tissue specific applications.
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Affiliation(s)
- Camilo Chaves
- UCL Centre for Nanotechnology and Regenerative Medicine, Division of Surgery & Interventional Science, University College London , London, United Kingdom , NW3 2PF
- Université Paris Sud , Orthopedic Surgery, Hôpital Saint Antoine, 184, Rue du Faubourg-Saint-Antoine, Paris, France , 75012
| | - Feras Alshomer
- UCL Centre for Nanotechnology and Regenerative Medicine, Division of Surgery & Interventional Science, University College London , London, United Kingdom , NW3 2PF
| | - Robert G Palgrave
- Department of Chemistry, University College London , 20 Gordon Street, London, United Kingdom , WC1H 0AJ
| | - Deepak M Kalaskar
- UCL Centre for Nanotechnology and Regenerative Medicine, Division of Surgery & Interventional Science, University College London , London, United Kingdom , NW3 2PF
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Salehi-Nik N, Banikarimi SP, Amoabediny G, Pouran B, Shokrgozar MA, Zandieh-Doulabi B, Klein-Nulend J. Flow Preconditioning of Endothelial Cells on Collagen-Immobilized Silicone Fibers Enhances Cell Retention and Antithrombotic Function. Artif Organs 2016; 41:556-567. [DOI: 10.1111/aor.12759] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Revised: 02/18/2016] [Accepted: 03/21/2016] [Indexed: 11/29/2022]
Affiliation(s)
- Nasim Salehi-Nik
- School of Chemical Engineering, College of Engineering, University of Tehran; Tehran
- Department of Biomedical Engineering; Research Center for New Technologies in Life Science Engineering, University of Tehran; Tehran Iran
- Department of Oral Cell Biology; Academic Centre for Dentistry Amsterdam, University of Amsterdam and VU University Amsterdam, MOVE Research Institute Amsterdam; Amsterdam The Netherlands
| | - Seyedeh Parnian Banikarimi
- School of Chemical Engineering, College of Engineering, University of Tehran; Tehran
- Department of Biomedical Engineering; Research Center for New Technologies in Life Science Engineering, University of Tehran; Tehran Iran
| | - Ghassem Amoabediny
- School of Chemical Engineering, College of Engineering, University of Tehran; Tehran
- Department of Biomedical Engineering; Research Center for New Technologies in Life Science Engineering, University of Tehran; Tehran Iran
| | - Behdad Pouran
- Department of Orthopedics; University Medical Center Utrecht; Utrecht
- Department of Biomechanical Engineering; Faculty of Mechanical, Maritime, and Materials Engineering, Delft University of Technology; Delft The Netherlands
| | | | - Behrouz Zandieh-Doulabi
- Department of Oral Cell Biology; Academic Centre for Dentistry Amsterdam, University of Amsterdam and VU University Amsterdam, MOVE Research Institute Amsterdam; Amsterdam The Netherlands
| | - Jenneke Klein-Nulend
- Department of Oral Cell Biology; Academic Centre for Dentistry Amsterdam, University of Amsterdam and VU University Amsterdam, MOVE Research Institute Amsterdam; Amsterdam The Netherlands
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34
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Askari F, Solouk A, Shafieian M, Seifalian AM. Stem cells for tissue engineered vascular bypass grafts. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2016; 45:999-1010. [DOI: 10.1080/21691401.2016.1198366] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Forough Askari
- Department of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran
| | - Atefeh Solouk
- Department of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran
| | - Mehdi Shafieian
- Department of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran
| | - Alexander M. Seifalian
- Centre for Nanotechnology and Regenerative Medicine, University College London, London, UK
- Royal Free Hampstead National Health Service Trust Hospital, London, UK
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35
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Novel heart valve prosthesis with self-endothelialization potential made of modified polyhedral oligomeric silsesquioxane-nanocomposite material. Biointerphases 2016; 11:029801. [DOI: 10.1116/1.4939036] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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36
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Nanoliposomal Growth Hormone and Sodium Nitrite Release from Silicone Fibers Reduces Thrombus Formation Under Flow. Ann Biomed Eng 2016; 44:2417-2430. [DOI: 10.1007/s10439-015-1529-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Accepted: 12/08/2015] [Indexed: 10/22/2022]
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Lukas K, Thomas U, Gessner A, Wehner D, Schmid T, Schmid C, Lehle K. Plasma functionalization of polycarbonaturethane to improve endothelialization—Effect of shear stress as a critical factor for biocompatibility control. J Biomater Appl 2016; 30:1417-28. [DOI: 10.1177/0885328215626072] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Medical devices made of polycarbonaturethane (PCU) combine excellent mechanical properties and little biological degradation, but restricted hemocompatibility. Modifications of PCU might reduce platelet adhesion and promote stable endothelialization. PCU was modified using gas plasma treatment, binding of hydrogels, and coupling of cell-active molecules (modified heparin, anti-thrombin III (ATIII), argatroban, fibronectin, laminin-nonapeptide, peptides with integrin-binding arginine-glycine-aspartic acid (RGD) motif). Biocompatibility was verified with static and dynamic cell culture techniques. Blinded analysis focused on improvement in endothelial cell (EC) adhesion/proliferation, anti-thrombogenicity, reproducible manufacturing process, and shear stress tolerance of ECs. EC adhesion and antithrombogenicity were achieved with 9/35 modifications. Additionally, 6/9 stimulated EC proliferation and 3/6 modification processes were highly reproducible for endothelialization. The latter modifications comprised immobilization of ATIII (A), polyethyleneglycole-diamine-hydrogel (E) and polyethylenimine-hydrogel connected with modified heparin (IH). Under sheer stress, only the IH modification improved EC adhesion within the graft. However, ECs did not arrange in flow direction and cell anchorage was restricted. Despite large variation in surface modification chemistry and improved EC adhesion under static culture conditions, additional introduction of shear stress foiled promising preliminary data. Therefore, biocompatibility testing required not only static tests but also usage of physiological conditions such as shear stress in the case of vascular grafts.
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Affiliation(s)
- Karin Lukas
- IMHR, Institute for Medical Microbiology and Hygiene, University of Regensburg, Regensburg, Germany
| | | | - André Gessner
- IMHR, Institute for Medical Microbiology and Hygiene, University of Regensburg, Regensburg, Germany
| | | | | | - Christof Schmid
- Department of Cardiothoracic Surgery, University Hospital Regensburg, Regensburg, Germany
| | - Karla Lehle
- Department of Cardiothoracic Surgery, University Hospital Regensburg, Regensburg, Germany
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Crowley C, Klanrit P, Butler CR, Varanou A, Platé M, Hynds RE, Chambers RC, Seifalian AM, Birchall MA, Janes SM. Surface modification of a POSS-nanocomposite material to enhance cellular integration of a synthetic bioscaffold. Biomaterials 2016; 83:283-93. [PMID: 26790147 PMCID: PMC4762251 DOI: 10.1016/j.biomaterials.2016.01.005] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2015] [Revised: 12/27/2015] [Accepted: 01/01/2016] [Indexed: 12/20/2022]
Abstract
Polyhedral oligomeric silsesquioxane poly(carbonate-urea) urethane (POSS-PCU) is a versatile nanocomposite biomaterial with growing applications as a bioscaffold for tissue engineering. Integration of synthetic implants with host tissue can be problematic but could be improved by topographical modifications. We describe optimization of POSS-PCU by dispersion of porogens (sodium bicarbonate (NaHCO3), sodium chloride (NaCl) and sucrose) onto the material surface, with the principle aim of increasing surface porosity, thus providing additional opportunities for improved cellular and vascular ingrowth. We assess the effect of the porogens on the material's mechanical strength, surface chemistry, wettability and cytocompatibilty. Surface porosity was characterized by scanning electron microscopy (SEM). There was no alteration in surface chemistry and wettability and only modest changes in mechanical properties were detected. The size of porogens correlated well with the porosity of the construct produced and larger porogens improved interconnectivity of spaces within constructs. Using primary human bronchial epithelial cells (HBECs) we demonstrate moderate in vitro cytocompatibility for all surface modifications; however, larger pores resulted in cellular aggregation. These cells were able to differentiate on POSS-PCU scaffolds. Implantation of the scaffold in vivo demonstrated that larger pore sizes favor cellular integration and vascular ingrowth. These experiments demonstrate that surface modification with large porogens can improve POSS-PCU nanocomposite scaffold integration and suggest the need to strike a balance between the non-porous surfaces required for epithelial coverage and the porous structure required for integration and vascularization of synthetic scaffolds in future construct design.
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Affiliation(s)
- Claire Crowley
- Lungs for Living Research Centre, UCL Respiratory, University College London, London, UK; UCL Centre of Nanotechnology and Regenerative Medicine, Division of Surgery and Interventional Science, Royal Free London NHS Foundation Trust Hospital and University College London, London, UK
| | - Poramate Klanrit
- UCL Centre of Nanotechnology and Regenerative Medicine, Division of Surgery and Interventional Science, Royal Free London NHS Foundation Trust Hospital and University College London, London, UK
| | - Colin R Butler
- Lungs for Living Research Centre, UCL Respiratory, University College London, London, UK
| | - Aikaterini Varanou
- Lungs for Living Research Centre, UCL Respiratory, University College London, London, UK
| | - Manuela Platé
- Lungs for Living Research Centre, UCL Respiratory, University College London, London, UK; Centre for Inflammation and Tissue Repair, UCL Respiratory, University College London, London, UK
| | - Robert E Hynds
- Lungs for Living Research Centre, UCL Respiratory, University College London, London, UK
| | - Rachel C Chambers
- Centre for Inflammation and Tissue Repair, UCL Respiratory, University College London, London, UK
| | - Alexander M Seifalian
- UCL Centre of Nanotechnology and Regenerative Medicine, Division of Surgery and Interventional Science, Royal Free London NHS Foundation Trust Hospital and University College London, London, UK
| | - Martin A Birchall
- UCL Ear Institute, Royal National Throat Nose and Ear Hospital and University College London, London, UK.
| | - Sam M Janes
- Lungs for Living Research Centre, UCL Respiratory, University College London, London, UK.
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Rudolph A, Teske M, Illner S, Kiefel V, Sternberg K, Grabow N, Wree A, Hovakimyan M. Surface Modification of Biodegradable Polymers towards Better Biocompatibility and Lower Thrombogenicity. PLoS One 2015; 10:e0142075. [PMID: 26641662 PMCID: PMC4671536 DOI: 10.1371/journal.pone.0142075] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2015] [Accepted: 10/16/2015] [Indexed: 11/24/2022] Open
Abstract
Purpose Drug-eluting stents (DES) based on permanent polymeric coating matrices have been introduced to overcome the in stent restenosis associated with bare metal stents (BMS). A further step was the development of DES with biodegradable polymeric coatings to address the risk of thrombosis associated with first-generation DES. In this study we evaluate the biocompatibility of biodegradable polymer materials for their potential use as coating matrices for DES or as materials for fully bioabsorbable vascular stents. Materials and Methods Five different polymers, poly(L-lactide) PLLA, poly(D,L-lactide) PDLLA, poly(L-lactide-co-glycolide) P(LLA-co-GA), poly(D,L-lactide-co-glycolide) P(DLLA-co-GA) and poly(L-lactide-co-ε-caprolactone), P(LLA-co-CL) were examined in vitro without and with surface modification. The surface modification of polymers was performed by means of wet-chemical (NaOH and ethylenediamine (EDA)) and plasma-chemical (O2 and NH3) processes. The biocompatibility studies were performed on three different cell types: immortalized mouse fibroblasts (cell line L929), human coronary artery endothelial cells (HCAEC) and human umbilical vein endothelial cells (HUVEC). The biocompatibility was examined quantitatively using in vitro cytotoxicity assay. Cells were investigated immunocytochemically for expression of specific markers, and morphology was visualized using confocal laser scanning (CLSM) and scanning electron (SEM) microscopy. Additionally, polymer surfaces were examined for their thrombogenicity using an established hemocompatibility test. Results Both endothelial cell types exhibited poor viability and adhesion on all five unmodified polymer surfaces. The biocompatibility of the polymers could be influenced positively by surface modifications. In particular, a reproducible effect was observed for NH3-plasma treatment, which enhanced the cell viability, adhesion and morphology on all five polymeric surfaces. Conclusion Surface modification of polymers can provide a useful approach to enhance their biocompatibility. For clinical application, attempts should be made to stabilize the plasma modification and use it for coupling of biomolecules to accelerate the re-endothelialization of stent surfaces in vivo.
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Affiliation(s)
- Andreas Rudolph
- Institute for Biomedical Engineering, Rostock University Medical Center, Friedrich-Barnewitz-Strasse 4, D-18119, Rostock, Germany
| | - Michael Teske
- Institute for Biomedical Engineering, Rostock University Medical Center, Friedrich-Barnewitz-Strasse 4, D-18119, Rostock, Germany
| | - Sabine Illner
- Institute for Biomedical Engineering, Rostock University Medical Center, Friedrich-Barnewitz-Strasse 4, D-18119, Rostock, Germany
| | - Volker Kiefel
- Department of Transfusion Medicine, Rostock University Medical Center, Ernst-Heydemann-Strasse 6, D-18057, Rostock, Germany
| | - Katrin Sternberg
- Institute for Biomedical Engineering, Rostock University Medical Center, Friedrich-Barnewitz-Strasse 4, D-18119, Rostock, Germany
| | - Niels Grabow
- Institute for Biomedical Engineering, Rostock University Medical Center, Friedrich-Barnewitz-Strasse 4, D-18119, Rostock, Germany
| | - Andreas Wree
- Institute of Anatomy, Rostock University Medical Center, Gertrudenstrasse 9, D-18057, Rostock, Germany
| | - Marina Hovakimyan
- Institute for Biomedical Engineering, Rostock University Medical Center, Friedrich-Barnewitz-Strasse 4, D-18119, Rostock, Germany
- * E-mail:
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40
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Salehi-Nik N, Amoabediny G, Solouk A, Shokrgozar MA, Zandieh-Doulabi B, Klein-Nulend J. Biomimetic modification of silicone tubes using sodium nitrite-collagen immobilization accelerates endothelialization. J Biomed Mater Res B Appl Biomater 2015; 104:1311-21. [DOI: 10.1002/jbm.b.33412] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2014] [Revised: 02/22/2015] [Accepted: 03/09/2015] [Indexed: 11/06/2022]
Affiliation(s)
- Nasim Salehi-Nik
- School of Chemical Engineering; College of Engineering; University of Tehran; Tehran Iran
- Department of Biomedical Engineering; Research Center for New Technologies in Life Science Engineering; University of Tehran; Tehran Iran
| | - Ghassem Amoabediny
- School of Chemical Engineering; College of Engineering; University of Tehran; Tehran Iran
- Department of Biomedical Engineering; Research Center for New Technologies in Life Science Engineering; University of Tehran; Tehran Iran
| | - Atefeh Solouk
- Department of Biomedical Engineering; Amirkabir University of Technology; Tehran Iran
| | | | - Behrouz Zandieh-Doulabi
- Department of Oral Cell Biology; Academic Centre for Dentistry Amsterdam; University of Amsterdam and VU University Amsterdam; MOVE Research Institute Amsterdam; Amsterdam The Netherlands
| | - Jenneke Klein-Nulend
- Department of Oral Cell Biology; Academic Centre for Dentistry Amsterdam; University of Amsterdam and VU University Amsterdam; MOVE Research Institute Amsterdam; Amsterdam The Netherlands
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Figueiredo C, Blasczyk R. A future with less HLA: potential clinical applications of HLA-universal cells. ACTA ACUST UNITED AC 2015; 85:443-9. [DOI: 10.1111/tan.12564] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- C. Figueiredo
- Institute for Transfusion Medicine; Hannover Medical School; Hannover Germany
| | - R. Blasczyk
- Institute for Transfusion Medicine; Hannover Medical School; Hannover Germany
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Salehi-Nik N, Amoabediny G, Shokrgozar MA, Mottaghy K, Klein-Nulend J, Zandieh-Doulabi B. Surface modification of silicone tubes by functional carboxyl and amine, but not peroxide groups followed by collagen immobilization improves endothelial cell stability and functionality. ACTA ACUST UNITED AC 2015; 10:015024. [PMID: 25730524 DOI: 10.1088/1748-6041/10/1/015024] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Surface modification by functional groups promotes endothelialization in biohybrid artificial lungs, but whether it affects endothelial cell stability under fluid shear stress, and the release of anti-thrombotic factors, e.g. nitric oxide (NO), is unknown. We aimed to test whether surface-modified silicone tubes containing different functional groups, but similar wettability, improve collagen immobilization, endothelialization, cell stability and cell-mediated NO-release. Peroxide, carboxyl, and amine-groups increased collagen immobilization (41-76%). Only amine-groups increased ultimate tensile strength (2-fold). Peroxide and amine enhanced (1.5-2.5 fold), but carboxyl-groups decreased (2.9-fold) endothelial cell number after 6 d. After collagen immobilization, cell numbers were enhanced by all group-modifications (2.8-3.8 fold). Cells were stable under 1 h-fluid shear stress on amine, but not carboxyl or peroxide-group-modified silicone (>50% cell detachment), while cells were also stable on carboxyl-group-modified silicone with immobilized collagen. NO-release was increased by peroxide and amine (1.1-1.7 fold), but decreased by carboxyl-group-modification (9.8-fold), while it increased by all group-modifications after collagen immobilization (1.8-2.8 fold). Only the amine-group-modification changed silicone stiffness and transparency. In conclusion, silicone-surface modification of blood-contacting parts of artificial lungs with carboxyl and amine, but not peroxide-groups followed by collagen immobilization allows the formation of a stable functional endothelial cell layer. Amine-group-modification seems undesirable since it affected silicone's physical properties.
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Affiliation(s)
- Nasim Salehi-Nik
- School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran. Department of Biomedical Engineering, Research Center for New Technologies in Life Science Engineering, University of Tehran, Tehran, Iran
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