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Saeed M, Farooq MU, Abbas MNA, Khan F, Tangmi DEA, Mittal G. The migraine epidemic among medical students: a call for action. Ann Med Surg (Lond) 2024; 86:4586-4590. [PMID: 39118748 PMCID: PMC11305729 DOI: 10.1097/ms9.0000000000002241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Accepted: 05/26/2024] [Indexed: 08/10/2024] Open
Abstract
Migraine is characterized by recurrent headaches of moderate-to-severe intensity and poses a significant challenge for medical students. This is a narrative literature review using PubMed and Scopus databases. This study examines how common migraine is in this group and suggests working together to address how it affects students' well-being and chances of succeeding as a medical professional in the future. Early diagnosis by licensed medical specialists is essential for effective management of migraine. To address this, the authors propose a multifaceted strategy. By including direct education on migraines in medical school curricula, future doctors will be better prepared to treat patients with comparable problems and manage their own migraines. Students with migraines can also benefit greatly from creating a supportive learning environment through staff training, accommodating academic policies, and providing easily available healthcare resources. In addition, this technology may be helpful. Apps for relaxation and migraine tracking can help students better manage their condition. Long-term success requires cooperation among all parties. By promoting cooperation among medical schools, student associations, healthcare practitioners, and governmental organizations, the authors can raise public awareness of migraine, make pertinent resources easier to access, and create evidence-based solutions specially designed to meet the needs of medical students who experience migraine. In the end, putting student well-being first and working together to put these solutions into practice can enable aspiring doctors to succeed at both personal and professional levels.
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Affiliation(s)
| | | | | | - Faheemullah Khan
- Section of Cardiovascular Imaging, Diagnostic Institute, Cleveland Clinic, OH, USA
| | - Djabo Eric Adrien Tangmi
- Department of Medicine, Université Technologique Bel Campus, Kinshasa, Democratic Republic of Congo
| | - Gaurav Mittal
- Department of Research, Mahatma Gandhi Institute of Medical Sciences, Wardha, Maharashtra, India
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2
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Tibourtine F, Canceill T, Marfoglia A, Lavalle P, Gibot L, Pilloux L, Aubry C, Medemblik C, Goudouneche D, Dupret-Bories A, Cazalbou S. Advanced Platelet Lysate Aerogels: Biomaterials for Regenerative Applications. J Funct Biomater 2024; 15:49. [PMID: 38391902 PMCID: PMC10890004 DOI: 10.3390/jfb15020049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 02/01/2024] [Accepted: 02/15/2024] [Indexed: 02/24/2024] Open
Abstract
Human platelet lysate (HPL), rich in growth factors, is increasingly recognized for its potential in tissue engineering and regenerative medicine. However, its use in liquid or gel form is constrained by limited stability and handling difficulties. This study aimed to develop dry and porous aerogels from HPL hydrogel using an environmentally friendly supercritical CO2-based shaping process, specifically tailored for tissue engineering applications. The aerogels produced retained their three-dimensional structure and demonstrated significant mechanical robustness and enhanced manageability. Impressively, they exhibited high water absorption capacity, absorbing 87% of their weight in water within 120 min. Furthermore, the growth factors released by these aerogels showed a sustained and favourable biological response in vitro. They maintained the cellular metabolic activity of fibroblasts (BALB-3T3) at levels akin to conventional culture conditions, even after prolonged storage, and facilitated the migration of human umbilical vein endothelial cells (HUVECs). Additionally, the aerogels themselves supported the adhesion and proliferation of murine fibroblasts (BALB-3T3). Beyond serving as excellent matrices for cell culture, these aerogels function as efficient systems for the delivery of growth factors. Their multifunctional capabilities position them as promising candidates for various tissue regeneration strategies. Importantly, the developed aerogels can be stored conveniently and are considered ready to use, enhancing their practicality and applicability in regenerative medicine.
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Affiliation(s)
- Fahd Tibourtine
- CIRIMAT, Université Toulouse 3 Paul Sabatier, Toulouse INP, CNRS, Université de Toulouse, 118 Route de Narbonne, CEDEX 9, 31062 Toulouse, France
| | - Thibault Canceill
- Département Odontologie, Faculté de Santé, Hôpitaux de Toulouse, Université Paul Sabatier, 3 Chemin des Maraichers, CEDEX 9, 31062 Toulouse, France
| | - Andrea Marfoglia
- CIRIMAT, Université Toulouse 3 Paul Sabatier, Toulouse INP, CNRS, Université de Toulouse, 118 Route de Narbonne, CEDEX 9, 31062 Toulouse, France
- Laboratoire de Génie Chimique, Université Toulouse 3 Paul Sabatier, Toulouse INP, CNRS, Université de Toulouse, 31062 Toulouse, France
| | - Philippe Lavalle
- Institut National de la Santé et de la Recherche Médicale, Inserm UMR_S 1121 Biomaterials and Bioengineering, 67085 Strasbourg, France
| | - Laure Gibot
- Laboratoire Softmat, Université de Toulouse, CNRS UMR 5623, Université Toulouse III-Paul Sabatier, 31062 Toulouse, France
| | - Ludovic Pilloux
- Laboratoire de Génie Chimique, Université Toulouse 3 Paul Sabatier, Toulouse INP, CNRS, Université de Toulouse, 31062 Toulouse, France
| | - Clementine Aubry
- ARNA, Inserm U1212, CNRS 5320, University of Bordeaux, 146 Rue Léo Saignat, CEDEX, 33076 Bordeaux, France
| | - Claire Medemblik
- Institut National de la Santé et de la Recherche Médicale, Inserm UMR_S 1121 Biomaterials and Bioengineering, 67085 Strasbourg, France
| | - Dominique Goudouneche
- Centre de Microscopie Electronique Appliquée à la Biologie, Faculté de Médecine, 133 Route de Narbonne, 31062 Toulouse, France
| | - Agnès Dupret-Bories
- CIRIMAT, Université Toulouse 3 Paul Sabatier, Toulouse INP, CNRS, Université de Toulouse, 118 Route de Narbonne, CEDEX 9, 31062 Toulouse, France
- Department of Surgery, University Cancer Institute of Toulouse-Oncopole, 1 Avenue Irène Joliot-Curie, 31100 Toulouse, France
- Department of Ear, Nose and Throat Surgery, Toulouse University Hospital-Larrey Hospital, 31400 Toulouse, France
| | - Sophie Cazalbou
- CIRIMAT, Université Toulouse 3 Paul Sabatier, Toulouse INP, CNRS, Université de Toulouse, 118 Route de Narbonne, CEDEX 9, 31062 Toulouse, France
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3
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Bindi B, Perioli A, Melo P, Mattu C, Ferreira AM. Bioinspired Collagen/Hyaluronic Acid/Fibrin-Based Hydrogels for Soft Tissue Engineering: Design, Synthesis, and In Vitro Characterization. J Funct Biomater 2023; 14:495. [PMID: 37888160 PMCID: PMC10607851 DOI: 10.3390/jfb14100495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 09/12/2023] [Accepted: 09/16/2023] [Indexed: 10/28/2023] Open
Abstract
A major challenge for future drug development comprises finding alternative models for drug screening. The use of animal models in research is highly controversial, with an ongoing debate on their ethical acceptability. Also, animal models are often poorly predictive of therapeutic outcomes due to the differences between animal and human physiological environments. In this study, we aimed to develop a biomimetic hydrogel that replicates the composition of skin for potential use in in vitro modeling within tissue engineering. The hydrogel was fabricated through the crosslinking of collagen type I, hyaluronic acid, four-arm PEG succinimidyl glutarate (4S-StarPEG), and fibrinogen. Various ratios of these components were systematically optimized to achieve a well-interconnected porosity and desirable rheological properties. To evaluate the hydrogel's cytocompatibility, fibroblasts were embedded within the matrix. The resulting hydrogel exhibited promising properties as a scaffold, also facilitating the growth of and proliferation of the cells. This biomimetic hydrogel holds great potential for tissue engineering applications, particularly in skin regeneration and cancer research. The study used melanoma spheroids fabricated using the 96-round bottom well plate method as a potential application. The results demonstrate that the developed hydrogels allowed the maintenance of spheroid integrity and viability, meaning it has a promising use as a three-dimensional in vitro model of melanoma for both tissue engineering and drug screening applications.
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Affiliation(s)
- Bianca Bindi
- School of Engineering, Newcastle University, Newcastle upon Tyne NE1 7RU, UK
| | - Annalisa Perioli
- School of Engineering, Newcastle University, Newcastle upon Tyne NE1 7RU, UK
| | - Priscila Melo
- School of Engineering, Newcastle University, Newcastle upon Tyne NE1 7RU, UK
| | - Clara Mattu
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy
| | - Ana Marina Ferreira
- School of Engineering, Newcastle University, Newcastle upon Tyne NE1 7RU, UK
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4
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In vitro evaluation of antibacterial activity and biocompatibility of synergistically cross-linked gelatin-alginate hydrogel beads as gentamicin carriers. J Drug Deliv Sci Technol 2023. [DOI: 10.1016/j.jddst.2022.104078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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5
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Martinez-Garcia FD, Fischer T, Hayn A, Mierke CT, Burgess JK, Harmsen MC. A Beginner’s Guide to the Characterization of Hydrogel Microarchitecture for Cellular Applications. Gels 2022; 8:gels8090535. [PMID: 36135247 PMCID: PMC9498492 DOI: 10.3390/gels8090535] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 08/17/2022] [Accepted: 08/23/2022] [Indexed: 12/12/2022] Open
Abstract
The extracellular matrix (ECM) is a three-dimensional, acellular scaffold of living tissues. Incorporating the ECM into cell culture models is a goal of cell biology studies and requires biocompatible materials that can mimic the ECM. Among such materials are hydrogels: polymeric networks that derive most of their mass from water. With the tuning of their properties, these polymer networks can resemble living tissues. The microarchitectural properties of hydrogels, such as porosity, pore size, fiber length, and surface topology can determine cell plasticity. The adequate characterization of these parameters requires reliable and reproducible methods. However, most methods were historically standardized using other biological specimens, such as 2D cell cultures, biopsies, or even animal models. Therefore, their translation comes with technical limitations when applied to hydrogel-based cell culture systems. In our current work, we have reviewed the most common techniques employed in the characterization of hydrogel microarchitectures. Our review provides a concise description of the underlying principles of each method and summarizes the collective data obtained from cell-free and cell-loaded hydrogels. The advantages and limitations of each technique are discussed, and comparisons are made. The information presented in our current work will be of interest to researchers who employ hydrogels as platforms for cell culture, 3D bioprinting, and other fields within hydrogel-based research.
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Affiliation(s)
- Francisco Drusso Martinez-Garcia
- Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Hanzeplein 1 (EA11), 9713 GZ Groningen, The Netherlands
- W.J. Kolff Research Institute, University Medical Center Groningen, University of Groningen, A. Deusinglaan 1, 9713 AV Groningen, The Netherlands
| | - Tony Fischer
- Biological Physics Division, Peter Debye Institute of Soft Matter Physics, Faculty of Physics and Earth Science, Leipzig University, Linnéstraße 5, 04103 Leipzig, Germany
| | - Alexander Hayn
- Biological Physics Division, Peter Debye Institute of Soft Matter Physics, Faculty of Physics and Earth Science, Leipzig University, Linnéstraße 5, 04103 Leipzig, Germany
- Clinic and Polyclinic for Oncology, Gastroenterology, Hepatology, Pneumology, Infectiology Department of Hepatology, University Hospital Leipzig, Liebigstr. 19, 04103 Leipzig, Germany
| | - Claudia Tanja Mierke
- Biological Physics Division, Peter Debye Institute of Soft Matter Physics, Faculty of Physics and Earth Science, Leipzig University, Linnéstraße 5, 04103 Leipzig, Germany
- Correspondence: (C.T.M.); (M.C.H.)
| | - Janette Kay Burgess
- Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Hanzeplein 1 (EA11), 9713 GZ Groningen, The Netherlands
- W.J. Kolff Research Institute, University Medical Center Groningen, University of Groningen, A. Deusinglaan 1, 9713 AV Groningen, The Netherlands
- Groningen Research Institute for Asthma and COPD (GRIAC), University Medical Center Groningen, University of Groningen, Hanzeplein 1 (EA11), 9713 AV Groningen, The Netherlands
| | - Martin Conrad Harmsen
- Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Hanzeplein 1 (EA11), 9713 GZ Groningen, The Netherlands
- W.J. Kolff Research Institute, University Medical Center Groningen, University of Groningen, A. Deusinglaan 1, 9713 AV Groningen, The Netherlands
- Groningen Research Institute for Asthma and COPD (GRIAC), University Medical Center Groningen, University of Groningen, Hanzeplein 1 (EA11), 9713 AV Groningen, The Netherlands
- Correspondence: (C.T.M.); (M.C.H.)
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6
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Attasgah R, Velasco-Rodríguez B, Pardo A, Fernández-Vega J, Arellano-Galindo L, Rosales-Rivera L, Prieto G, Barbosa S, Soltero J, Mahmoudi M, Taboada P. DEVELOPMENT OF FUNCTIONAL HYBRID SCAFFOLDS FOR WOUND HEALING APPLICATIONS. iScience 2022; 25:104019. [PMID: 35340432 PMCID: PMC8941216 DOI: 10.1016/j.isci.2022.104019] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 01/31/2022] [Accepted: 02/25/2022] [Indexed: 12/02/2022] Open
Abstract
Hybrid hydrogels composed of chitosan (CS) and hyaluronic acid (HA) and collagen (Coll) were prepared by polyelectrolyte complex self-assembly. These scaffolds displayed a good intermingling of the polymeric chains, with porosities above 80% and good interconnected structures with pore sizes lying between 30–115 μm. The ionic interactions between CS and HA make the scaffolds have larger storage modulus and longer LVR regions than their pure counterparts. Both quantities progressively decrease as the HA and Coll concentrations in the formulation rise. These hybrid hydrogels showed good swelling extents from ca. 420 to ca. 690% and suitable resistance to enzymatic degradation, which was slightly lower for scaffolds containing CS to larger extents or Coll in the formulation. All scaffolds were largely cytocompatible and allowed the proliferation of both mouse fibroblast and human keratinocytes with their infiltration inside, thus becoming optimal matrices for intended tissue engineering applications as well as transdermal drug delivery depots. Hybrid scaffolds were obtained by polyelectrolyte ionic self-assembly Scaffolds were largely porous with suitable pore sizes for cell proliferation Scaffolds showed exceptional swelling and good resistance to enzymatic attack They were nontoxic and enabled cell proliferation and infiltration inside the scaffold
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7
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García A, Cabañas MV, Peña J, Sánchez-Salcedo S. Design of 3D Scaffolds for Hard Tissue Engineering: From Apatites to Silicon Mesoporous Materials. Pharmaceutics 2021; 13:pharmaceutics13111981. [PMID: 34834396 PMCID: PMC8624321 DOI: 10.3390/pharmaceutics13111981] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 11/11/2021] [Accepted: 11/16/2021] [Indexed: 01/16/2023] Open
Abstract
Advanced bioceramics for bone regeneration constitutes one of the pivotal interests in the multidisciplinary and far-sighted scientific trajectory of Prof. Vallet Regí. The different pathologies that affect osseous tissue substitution are considered to be one of the most important challenges from the health, social and economic point of view. 3D scaffolds based on bioceramics that mimic the composition, environment, microstructure and pore architecture of hard tissues is a consolidated response to such concerns. This review describes not only the different types of materials utilized: from apatite-type to silicon mesoporous materials, but also the fabrication techniques employed to design and adequate microstructure, a hierarchical porosity (from nano to macro scale), a cell-friendly surface; the inclusion of different type of biomolecules, drugs or cells within these scaffolds and the influence on their successful performance is thoughtfully reviewed.
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Affiliation(s)
- Ana García
- Departamento de Química en Ciencias Farmacéuticas, Facultad de Farmacia, Universidad Complutense de Madrid, UCM, Instituto de Investigación Hospital 12 de Octubre, i+12, 28040 Madrid, Spain; (A.G.); (M.V.C.); (J.P.)
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN) Madrid, 28040 Madrid, Spain
| | - María Victoria Cabañas
- Departamento de Química en Ciencias Farmacéuticas, Facultad de Farmacia, Universidad Complutense de Madrid, UCM, Instituto de Investigación Hospital 12 de Octubre, i+12, 28040 Madrid, Spain; (A.G.); (M.V.C.); (J.P.)
| | - Juan Peña
- Departamento de Química en Ciencias Farmacéuticas, Facultad de Farmacia, Universidad Complutense de Madrid, UCM, Instituto de Investigación Hospital 12 de Octubre, i+12, 28040 Madrid, Spain; (A.G.); (M.V.C.); (J.P.)
| | - Sandra Sánchez-Salcedo
- Departamento de Química en Ciencias Farmacéuticas, Facultad de Farmacia, Universidad Complutense de Madrid, UCM, Instituto de Investigación Hospital 12 de Octubre, i+12, 28040 Madrid, Spain; (A.G.); (M.V.C.); (J.P.)
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN) Madrid, 28040 Madrid, Spain
- Correspondence:
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8
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Velasco-Rodriguez B, Diaz-Vidal T, Rosales-Rivera LC, García-González CA, Alvarez-Lorenzo C, Al-Modlej A, Domínguez-Arca V, Prieto G, Barbosa S, Soltero Martínez JFA, Taboada P. Hybrid Methacrylated Gelatin and Hyaluronic Acid Hydrogel Scaffolds. Preparation and Systematic Characterization for Prospective Tissue Engineering Applications. Int J Mol Sci 2021; 22:ijms22136758. [PMID: 34201769 PMCID: PMC8268476 DOI: 10.3390/ijms22136758] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 06/17/2021] [Accepted: 06/19/2021] [Indexed: 02/06/2023] Open
Abstract
Hyaluronic acid (HA) and gelatin (Gel) are major components of the extracellular matrix of different tissues, and thus are largely appealing for the construction of hybrid hydrogels to combine the favorable characteristics of each biopolymer, such as the gel adhesiveness of Gel and the better mechanical strength of HA, respectively. However, despite previous studies conducted so far, the relationship between composition and scaffold structure and physico-chemical properties has not been completely and systematically established. In this work, pure and hybrid hydrogels of methacroyl-modified HA (HAMA) and Gel (GelMA) were prepared by UV photopolymerization and an extensive characterization was done to elucidate such correlations. Methacrylation degrees of ca. 40% and 11% for GelMA and HAMA, respectively, were obtained, which allows to improve the hydrogels’ mechanical properties. Hybrid GelMA/HAMA hydrogels were stiffer, with elastic modulus up to ca. 30 kPa, and porous (up to 91%) compared with pure GelMA ones at similar GelMA concentrations thanks to the interaction between HAMA and GelMA chains in the polymeric matrix. The progressive presence of HAMA gave rise to scaffolds with more disorganized, stiffer, and less porous structures owing to the net increase of mass in the hydrogel compositions. HAMA also made hybrid hydrogels more swellable and resistant to collagenase biodegradation. Hence, the suitable choice of polymeric composition allows to regulate the hydrogels´ physical properties to look for the most optimal characteristics required for the intended tissue engineering application.
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Affiliation(s)
- B. Velasco-Rodriguez
- Department of Chemical Engineering, CUCEI, Universidad de Guadalajara, Guadalajara 44430, Mexico; (B.V.-R.); (T.D.-V.); (L.C.R.-R.)
- Colloids and Polymers Physics Group, Department of Particle Physics, Faculty of Physics and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain;
| | - T. Diaz-Vidal
- Department of Chemical Engineering, CUCEI, Universidad de Guadalajara, Guadalajara 44430, Mexico; (B.V.-R.); (T.D.-V.); (L.C.R.-R.)
| | - L. C. Rosales-Rivera
- Department of Chemical Engineering, CUCEI, Universidad de Guadalajara, Guadalajara 44430, Mexico; (B.V.-R.); (T.D.-V.); (L.C.R.-R.)
| | - C. A. García-González
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, I + D Farma Group (GI-1645), Faculty of Pharmacy and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain; (C.A.G.-G.); (C.A.-L.)
| | - C. Alvarez-Lorenzo
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, I + D Farma Group (GI-1645), Faculty of Pharmacy and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain; (C.A.G.-G.); (C.A.-L.)
| | - A. Al-Modlej
- Department of Physics and Astronomy, College of Science, King Saud University, Riyadh 11451, Saudi Arabia;
| | - V. Domínguez-Arca
- Biophysics and Interfaces Group, Department of Applied Physics, Faculty of Physics, Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain; (V.D.-A.); (G.P.)
| | - G. Prieto
- Biophysics and Interfaces Group, Department of Applied Physics, Faculty of Physics, Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain; (V.D.-A.); (G.P.)
| | - S. Barbosa
- Colloids and Polymers Physics Group, Department of Particle Physics, Faculty of Physics and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain;
| | - J. F. A. Soltero Martínez
- Department of Chemical Engineering, CUCEI, Universidad de Guadalajara, Guadalajara 44430, Mexico; (B.V.-R.); (T.D.-V.); (L.C.R.-R.)
- Correspondence: (J.F.A.S.M.); (P.T.)
| | - P. Taboada
- Colloids and Polymers Physics Group, Department of Particle Physics, Faculty of Physics and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain;
- Correspondence: (J.F.A.S.M.); (P.T.)
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9
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Wijayanti I, Sookchoo P, Prodpran T, Mohan CO, Aluko RE, Benjakul S. Physical and chemical characteristics of Asian sea bass bio-calcium powders as affected by ultrasonication treatment and drying method. J Food Biochem 2021; 45:e13652. [PMID: 33595093 DOI: 10.1111/jfbc.13652] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 01/11/2021] [Accepted: 01/31/2021] [Indexed: 11/26/2022]
Abstract
The effects of ultrasonication and drying method on particle size and other product characteristics of bio-calcium powder from Asian sea bass (Lates calcarifer) backbone were investigated. Ultrasonication was performed at different amplitudes (60%, 70%, and 80%) for varying periods (15 and 30 min). Ultrasonication at higher amplitudes for a longer time reduced the powder particle size more effectively (p < .05), but had no impact on zeta potential (p > .05). The bio-calcium powder ultrasonicated at 70% amplitude for 15 min had the smallest particle size (3.38 µm) when compared to the control (28.85 µm). When the ultrasonicated bio-calcium was subjected to drying, freeze-drying produced powders with higher calcium solubility but lower whiteness than hot air (tray) drying. The results suggest that the ultrasonication is a potential suitable method to reduce the size of bio-calcium powders, while the drying method slightly affected the product characteristics. The bio-calcium powder could serve as a suitable functional ingredient for food fortification aimed at improving the calcium bioavailability. Particle size of bio-calcium powder from fishbone could affect the mouth feel and calcium solubility when used for food product fortification. This work showed that ultrasonication could be used to obtain up to 10-fold reduction in the particle size of fishbone bio-calcium powders, which promotes increased calcium solubility when subjected to simulated gastrointestinal tract digestion. Few differences in characteristics of the bio-calcium powder were observed for freeze-dried and hot air-dried samples. Thus, an economical, safe, and fast process can be implemented for the production of small particle size bio-calcium powder from fishbone.
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Affiliation(s)
- Ima Wijayanti
- International Center of Excellence in Seafood Science and Innovation, Faculty of Agro-Industry, Prince of Songkla University, Songkhla, Thailand.,Department of Fish Product Technology, Faculty of Fisheries and Marine Science, Diponegoro University, Semarang, Indonesia
| | - Pornsatit Sookchoo
- Center of Excellence in Bio-based Materials and Packaging Innovation, Faculty of Agro-Industry, Prince of Songkla University, Songkhla, Thailand
| | - Thummanoon Prodpran
- International Center of Excellence in Seafood Science and Innovation, Faculty of Agro-Industry, Prince of Songkla University, Songkhla, Thailand.,Center of Excellence in Bio-based Materials and Packaging Innovation, Faculty of Agro-Industry, Prince of Songkla University, Songkhla, Thailand
| | - Chitradurga O Mohan
- Fish Processing Division, Central Institute of Fisheries Technology, Cochin, India
| | - Rotimi E Aluko
- Department of Food and Human Nutritional Sciences, University of Manitoba, Winnipeg, MB, Canada
| | - Soottawat Benjakul
- International Center of Excellence in Seafood Science and Innovation, Faculty of Agro-Industry, Prince of Songkla University, Songkhla, Thailand
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10
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Ebrahimi M, Botelho M, Lu W, Monmaturapoj N. Development of nanocomposite collagen/
HA
/
β‐TCP
scaffolds with tailored gradient porosity and permeability using vitamin E. J Biomed Mater Res A 2020; 108:2379-2394. [DOI: 10.1002/jbm.a.36990] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Revised: 03/28/2020] [Accepted: 04/04/2020] [Indexed: 12/21/2022]
Affiliation(s)
- Mehdi Ebrahimi
- Restorative Dental Sciences, Prince Philip Dental Hospital The University of Hong Kong Hong Kong
| | - Michael Botelho
- Restorative Dental Sciences, Prince Philip Dental Hospital The University of Hong Kong Hong Kong
| | - William Lu
- Orthopaedics and Traumatology, Li Ka Shing Faculty of Medicine The University of Hong Kong Hong Kong
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11
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Ebrahimi M, Botelho M, Lu W, Monmaturapoj N. Integrated approach in designing biphasic nanocomposite collagen/nBCP scaffolds with controlled porosity and permeability for bone tissue engineering. J Biomed Mater Res B Appl Biomater 2019; 108:1738-1753. [PMID: 31750983 DOI: 10.1002/jbm.b.34518] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 09/27/2019] [Accepted: 11/04/2019] [Indexed: 02/06/2023]
Abstract
The bone scaffold for tissue engineering should be biomimetic, particularly in simulating the porosity features of natural bony tissue including pore size, pore shape, pore distribution pattern, and porosity percentage. Control of these can impact the scaffold hydrophilicity and permeability, which in turn influence the protein adsorption, cellular functions, and vascularization process. Various methods have been investigated for control of porosity parameters; however, the field still suffers from major challenges, that is, inadequate control of porosity and hydrophilicity at different levels. In this study, we developed an integrated approach for generation and control of porosity within nanocomposite collagen/nanobiphasic calcium phosphate (collagen/nBCP) scaffold. A modified freeze-drying procedure was applied alongside a chemical foaming method exploring the ability of "Tween 20" as a potent biocompatible porogen. Several processing variables were also examined including; quenching rate (-18 and -80°C), collagen/nBCP ratio (92/8% and 85/15%), and Tween ratio (10%, 20%, and 30%). Detailed physicochemical and porosimetry analysis confirmed the ability of Tween to actively modify the scaffold permeability and pore size by increasing the range of pore size while quenching rate mostly influenced the pore shape, and collagen/nBCP ratio affected total porosity and roughness. The collagen/nBCP ratio of 92/8% treated with low Tween ratios (10% and 20%) and exposed to -80°C quenching rate displayed more favorable physicochemical behavior, significantly higher permeability, a gradient porosity, and better in vitro performances. The proposed technique in this study provides an insight into the production of customized scaffolds for various tissue engineering applications.
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Affiliation(s)
- Mehdi Ebrahimi
- Restorative Dental Sciences, Prince Philip Dental Hospital, The University of Hong Kong, Sai Ying Pun, Hong Kong
| | - Michael Botelho
- Restorative Dental Sciences, Prince Philip Dental Hospital, The University of Hong Kong, Sai Ying Pun, Hong Kong
| | - William Lu
- Orthopaedics and Traumatology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pok Fu Lam, Hong Kong
| | - Naruporn Monmaturapoj
- National Metal and Materials Technology Center (MTEC), NSTDA, Khlong Nueng, Thailand
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12
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Witzler M, Ottensmeyer PF, Gericke M, Heinze T, Tobiasch E, Schulze M. Non-Cytotoxic Agarose/Hydroxyapatite Composite Scaffolds for Drug Release. Int J Mol Sci 2019; 20:E3565. [PMID: 31330875 PMCID: PMC6678963 DOI: 10.3390/ijms20143565] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2019] [Revised: 07/18/2019] [Accepted: 07/18/2019] [Indexed: 12/15/2022] Open
Abstract
Healing of large bone defects requires implants or scaffolds that provide structural guidance for cell growth, differentiation, and vascularization. In the present work, an agarose-hydroxyapatite composite scaffold was developed that acts not only as a 3D matrix, but also as a release system. Hydroxyapatite (HA) was incorporated into the agarose gels in situ in various ratios by a simple procedure consisting of precipitation, cooling, washing, and drying. The resulting gels were characterized regarding composition, porosity, mechanical properties, and biocompatibility. A pure phase of carbonated HA was identified in the scaffolds, which had pore sizes of up to several hundred micrometers. Mechanical testing revealed elastic moduli of up to 2.8 MPa for lyophilized composites. MTT testing on Lw35human mesenchymal stem cells (hMSCs) and osteosarcoma MG-63 cells proved the biocompatibility of the scaffolds. Furthermore, scaffolds were loaded with model drug compounds for guided hMSC differentiation. Different release kinetic models were evaluated for adenosine 5'-triphosphate (ATP) and suramin, and data showed a sustained release behavior over four days.
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Affiliation(s)
- Markus Witzler
- Department of Natural Sciences, Bonn-Rhein-Sieg University of Applied Sciences, von-Liebig-Str. 20, 53359 Rheinbach, Germany
- Institute of Organic Chemistry and Macromolecular Chemistry, Center of Excellence of Polysaccharide Research, Friedrich Schiller University of Jena, Humboldtstr. 10, 07743 Jena, Germany
| | - Patrick Frank Ottensmeyer
- Department of Natural Sciences, Bonn-Rhein-Sieg University of Applied Sciences, von-Liebig-Str. 20, 53359 Rheinbach, Germany
| | - Martin Gericke
- Institute of Organic Chemistry and Macromolecular Chemistry, Center of Excellence of Polysaccharide Research, Friedrich Schiller University of Jena, Humboldtstr. 10, 07743 Jena, Germany
| | - Thomas Heinze
- Institute of Organic Chemistry and Macromolecular Chemistry, Center of Excellence of Polysaccharide Research, Friedrich Schiller University of Jena, Humboldtstr. 10, 07743 Jena, Germany
| | - Edda Tobiasch
- Department of Natural Sciences, Bonn-Rhein-Sieg University of Applied Sciences, von-Liebig-Str. 20, 53359 Rheinbach, Germany
| | - Margit Schulze
- Department of Natural Sciences, Bonn-Rhein-Sieg University of Applied Sciences, von-Liebig-Str. 20, 53359 Rheinbach, Germany.
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13
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Pina S, Ribeiro VP, Marques CF, Maia FR, Silva TH, Reis RL, Oliveira JM. Scaffolding Strategies for Tissue Engineering and Regenerative Medicine Applications. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E1824. [PMID: 31195642 PMCID: PMC6600968 DOI: 10.3390/ma12111824] [Citation(s) in RCA: 229] [Impact Index Per Article: 45.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 05/31/2019] [Accepted: 06/03/2019] [Indexed: 02/06/2023]
Abstract
During the past two decades, tissue engineering and the regenerative medicine field have invested in the regeneration and reconstruction of pathologically altered tissues, such as cartilage, bone, skin, heart valves, nerves and tendons, and many others. The 3D structured scaffolds and hydrogels alone or combined with bioactive molecules or genes and cells are able to guide the development of functional engineered tissues, and provide mechanical support during in vivo implantation. Naturally derived and synthetic polymers, bioresorbable inorganic materials, and respective hybrids, and decellularized tissue have been considered as scaffolding biomaterials, owing to their boosted structural, mechanical, and biological properties. A diversity of biomaterials, current treatment strategies, and emergent technologies used for 3D scaffolds and hydrogel processing, and the tissue-specific considerations for scaffolding for Tissue engineering (TE) purposes are herein highlighted and discussed in depth. The newest procedures focusing on the 3D behavior and multi-cellular interactions of native tissues for further use for in vitro model processing are also outlined. Completed and ongoing preclinical research trials for TE applications using scaffolds and hydrogels, challenges, and future prospects of research in the regenerative medicine field are also presented.
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Affiliation(s)
- Sandra Pina
- 3B's Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal.
- ICVS/3B's-PT Government Associate Laboratory, 4805-017 Braga/Guimarães, Portugal.
| | - Viviana P Ribeiro
- 3B's Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal.
- ICVS/3B's-PT Government Associate Laboratory, 4805-017 Braga/Guimarães, Portugal.
| | - Catarina F Marques
- 3B's Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal.
- ICVS/3B's-PT Government Associate Laboratory, 4805-017 Braga/Guimarães, Portugal.
| | - F Raquel Maia
- 3B's Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal.
- ICVS/3B's-PT Government Associate Laboratory, 4805-017 Braga/Guimarães, Portugal.
- The Discoveries Centre for Regenerative and Precision Medicine, Headquarters at University of Minho, Avepark, 4805-017 Barco, Guimarães, Portugal.
| | - Tiago H Silva
- 3B's Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal.
- ICVS/3B's-PT Government Associate Laboratory, 4805-017 Braga/Guimarães, Portugal.
| | - Rui L Reis
- 3B's Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal.
- ICVS/3B's-PT Government Associate Laboratory, 4805-017 Braga/Guimarães, Portugal.
- The Discoveries Centre for Regenerative and Precision Medicine, Headquarters at University of Minho, Avepark, 4805-017 Barco, Guimarães, Portugal.
| | - J Miguel Oliveira
- 3B's Research Group, I3Bs-Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco, Guimarães, Portugal.
- ICVS/3B's-PT Government Associate Laboratory, 4805-017 Braga/Guimarães, Portugal.
- The Discoveries Centre for Regenerative and Precision Medicine, Headquarters at University of Minho, Avepark, 4805-017 Barco, Guimarães, Portugal.
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Abstract
The topical hemostatic agents in surgery are biomaterials that very important for surgeons to stop bleeding in the complicated areas. Currently available hemostatic agents are often expensive, ineffective or raise safety concerns. Synthetic rice starch-based sponge was an inexpensive and promising alternative. In this study, we synthesized and characterized a new hemostatic agent from rice starch and investigated their use as a hemostatic material. The rice starch-based sponge having interconnected pore were synthesized via blending of the rice starch and additive of carboxymethylcellulose (CMC), polyvinyl alcohol (PVA), and glycerol in hot water, freezing and drying by vacuum sublimation with enlarged porosity and rapid swelling behavior. Characteristics of the final products were then investigated by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) and scanning electron microscopy (SEM-EDS). In vivo studies using 4 rabbits with liver injury showed rice starch-based sponge blood aggregate formation as well as bulk blood coagulation inhibition. The biocompatibility tests showed that this sponge is safe and effective after follow-up for at least 6 months of animal and clinical trial.
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15
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Facile fabrication of superporous and biocompatible hydrogel scaffolds for artificial corneal periphery. Colloids Surf B Biointerfaces 2019; 175:26-35. [DOI: 10.1016/j.colsurfb.2018.11.013] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Revised: 10/04/2018] [Accepted: 11/06/2018] [Indexed: 12/18/2022]
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16
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Paris JL, Lafuente-Gómez N, Cabañas MV, Román J, Peña J, Vallet-Regí M. Fabrication of a nanoparticle-containing 3D porous bone scaffold with proangiogenic and antibacterial properties. Acta Biomater 2019; 86:441-449. [PMID: 30654210 PMCID: PMC6667335 DOI: 10.1016/j.actbio.2019.01.013] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 01/09/2019] [Accepted: 01/10/2019] [Indexed: 12/19/2022]
Abstract
3D porous scaffolds based on agarose and nanocrystalline apatite, two structural components that act as a temporary mineralized extracellular matrix, were prepared by the GELPOR3D method. This shaping technology allows the introduction of thermally-labile molecules within the scaffolds during the fabrication procedure. An angiogenic protein, Vascular Endothelial Growth Factor, and an antibiotic, cephalexin, loaded in mesoporous silica nanoparticles, were included to design multifunctional scaffolds for bone reconstruction. The dual release of both molecules showed a marked increase in the number of blood vessels on embryonic day 14 in chicken embryos grown ex ovo, while, at the same time providing an antibiotic local concentration capable of inhibiting Staphylococcus aureus bacterial growth. In this sense, different release patterns, monitored by UV-spectroscopy, could be tailored as a function of the cephalexin loading strategy, either releasing all the loaded cephalexin in the first 4 h or less than 50% after 24 h. The scaffold surface was characterized by a high hydrophilicity, with contact angles between 50° and 63°, which enabled the adhesion and proliferation of preosteoblastic cells. STATEMENT OF SIGNIFICANCE: The localized delivery of bioactive molecules has attracted significant attention due to the potential for dose reduction as well as reduced side effects compared to systemic delivery. In this article multifunctional 3D porous scaffolds with a designed porosity have been fabricated. The method also enables the controlled loading of an antibiotic drug and an angiogenic protein into the scaffold. These scaffolds, whose composition resembles the extracellular matrix are suitable for the adhesion of preosteoblast cells, exhibit a sustained cephalexin delivery adequate for inhibiting bacterial growth as well as release the proangiogenic molecule which induces blood vessel formation in chicken embryos grown ex ovo.
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Affiliation(s)
- Juan L Paris
- Dpto. Química en Ciencias Farmacéuticas (Unidad de Química Inorgánica y Bioinorgánica), Facultad de Farmacia, Universidad Complutense de Madrid, Instituto de Investigación Sanitaria Hospital 12 de Octubre (imas12), 28040 Madrid, Spain; Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Spain
| | - Nuria Lafuente-Gómez
- Dpto. Química en Ciencias Farmacéuticas (Unidad de Química Inorgánica y Bioinorgánica), Facultad de Farmacia, Universidad Complutense de Madrid, Instituto de Investigación Sanitaria Hospital 12 de Octubre (imas12), 28040 Madrid, Spain
| | - M Victoria Cabañas
- Dpto. Química en Ciencias Farmacéuticas (Unidad de Química Inorgánica y Bioinorgánica), Facultad de Farmacia, Universidad Complutense de Madrid, Instituto de Investigación Sanitaria Hospital 12 de Octubre (imas12), 28040 Madrid, Spain.
| | - Jesús Román
- Dpto. Química en Ciencias Farmacéuticas (Unidad de Química Inorgánica y Bioinorgánica), Facultad de Farmacia, Universidad Complutense de Madrid, Instituto de Investigación Sanitaria Hospital 12 de Octubre (imas12), 28040 Madrid, Spain
| | - Juan Peña
- Dpto. Química en Ciencias Farmacéuticas (Unidad de Química Inorgánica y Bioinorgánica), Facultad de Farmacia, Universidad Complutense de Madrid, Instituto de Investigación Sanitaria Hospital 12 de Octubre (imas12), 28040 Madrid, Spain
| | - María Vallet-Regí
- Dpto. Química en Ciencias Farmacéuticas (Unidad de Química Inorgánica y Bioinorgánica), Facultad de Farmacia, Universidad Complutense de Madrid, Instituto de Investigación Sanitaria Hospital 12 de Octubre (imas12), 28040 Madrid, Spain; Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Spain.
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17
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García-Honduvilla N, Coca A, Ortega MA, Trejo C, Román J, Peña J, Cabañas MV, Vallet Regi M, Buján J. Improved connective integration of a degradable 3D-nano-apatite/agarose scaffold subcutaneously implanted in a rat model. J Biomater Appl 2018; 33:741-752. [PMID: 30388385 DOI: 10.1177/0885328218810084] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
In this work, we evaluate the tissue response and tolerance to a designed 3D porous scaffold composed of nanocrystalline carbonate-hydroxyapatite and agarose as a preliminary step in bone repair and regeneration. These scaffolds were subcutaneously implanted into rats, which were sacrificed at different times. CD4+, CD8+ and ED1+ cells were evaluated as measurements of inflammatory reaction and tolerance. We observed some inflammatory response early after subcutaneous implantation. The 3D interconnected porosity increased scaffold integration via the formation of granulation tissue and the generation of a fibrous capsule around the scaffold. The capsule is initially formed by collagen which progressively invades the scaffold, creating a network that supports the settlement of connective tissue and generating a compact structure. The timing of the appearance of CD4+ and CD8+ cell populations is in agreement with the resolved inflammatory response. The appearance of macrophage activity evidences a slow and gradual degradation activity. Degradation started with the agarose component of the scaffold, but the nano-apatite was kept intact for up to 30 days. Therefore, this apatite/agarose scaffold showed a high capacity for integration by a connective network that stabilizes the scaffold and results in slow nano-apatite degradation. The fundamental properties of the scaffold would provide mechanical support and facilitate bone mobilization, which is of great importance in the masticatory system or large bones.
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Affiliation(s)
- Natalio García-Honduvilla
- 1 Departments of Medicine and Medical Specialties, Faculty of Medicine and Health Sciences, University of Alcalá. Alcalá de Henares, Madrid, Spain. Ramón y Cajal Institute of Sanitary Research (IRYCIS), Madrid, Spain.,2 Networking Biomedical Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain.,3 Defense University Center of Military Central Academy (CUD-ACD), Madrid, Spain
| | - Alejandro Coca
- 1 Departments of Medicine and Medical Specialties, Faculty of Medicine and Health Sciences, University of Alcalá. Alcalá de Henares, Madrid, Spain. Ramón y Cajal Institute of Sanitary Research (IRYCIS), Madrid, Spain
| | - Miguel A Ortega
- 1 Departments of Medicine and Medical Specialties, Faculty of Medicine and Health Sciences, University of Alcalá. Alcalá de Henares, Madrid, Spain. Ramón y Cajal Institute of Sanitary Research (IRYCIS), Madrid, Spain.,2 Networking Biomedical Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain
| | - Cynthia Trejo
- 4 Research Group on Stem Cells and Tissue Engineering (GICTIT), Laboratory of Research in Dentistry Almaraz, FES Iztacala, UNAM, Mexico
| | - Jesús Román
- 5 Department of Inorganic and Bioinorganic Chemistry, Faculty of Pharmacy, UCM, Institute of Health Research Hospital 12 de Octubre i + 12, 28040-Madrid, Spain
| | - Juan Peña
- 5 Department of Inorganic and Bioinorganic Chemistry, Faculty of Pharmacy, UCM, Institute of Health Research Hospital 12 de Octubre i + 12, 28040-Madrid, Spain
| | - M Victoria Cabañas
- 5 Department of Inorganic and Bioinorganic Chemistry, Faculty of Pharmacy, UCM, Institute of Health Research Hospital 12 de Octubre i + 12, 28040-Madrid, Spain
| | - Maria Vallet Regi
- 2 Networking Biomedical Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain.,5 Department of Inorganic and Bioinorganic Chemistry, Faculty of Pharmacy, UCM, Institute of Health Research Hospital 12 de Octubre i + 12, 28040-Madrid, Spain
| | - Julia Buján
- 1 Departments of Medicine and Medical Specialties, Faculty of Medicine and Health Sciences, University of Alcalá. Alcalá de Henares, Madrid, Spain. Ramón y Cajal Institute of Sanitary Research (IRYCIS), Madrid, Spain.,2 Networking Biomedical Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain
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18
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Rezaei M, Oryan S, Nourani MR, Mofid M, Mozafari M. Curcumin nanoparticle-incorporated collagen/chitosan scaffolds for enhanced wound healing. BIOINSPIRED BIOMIMETIC AND NANOBIOMATERIALS 2018. [DOI: 10.1680/jbibn.17.00036] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Malakeh Rezaei
- Department of Animal Biology, Faculty of Biological Sciences, Kharazmi University, Tehran, Iran
| | - Shahrbanoo Oryan
- Department of Animal Biology, Faculty of Biological Sciences, Kharazmi University, Tehran, Iran
| | - Mohammad Reza Nourani
- Nano Biotechnology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Mahmood Mofid
- Department of Anatomy, Faculty of Medicine, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Masoud Mozafari
- Bioengineering Research Group, Nanotechnology and Advanced Materials Department, Materials and Energy Research Center, Tehran, Iran; Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran; Department of Tissue Engineering and Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
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19
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Al-Dossary M, Padhy H, Xu F, Behzad AR, el Tall O, Rothenberger A. Copper-based hydrogels with dicarboxylate spacer ligands for selective carbon dioxide separation applications. NEW J CHEM 2018. [DOI: 10.1039/c8nj01997e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Dicarboxylate spacer ligands enhanced the rigidity, porosity, surface area, and CO2/N2 and CO2/CH4 selectivity of Cu2+-based poly(methyl vinyl ether-alt-maleic anhydride) hydrogels.
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Affiliation(s)
- Mona Al-Dossary
- Physical Sciences and Engineering Division
- King Abdullah University of Science and Technology (KAUST)
- Thuwal 23955-6900
- Kingdom of Saudi Arabia
| | - Harihara Padhy
- Physical Sciences and Engineering Division
- King Abdullah University of Science and Technology (KAUST)
- Thuwal 23955-6900
- Kingdom of Saudi Arabia
- Department of Chemistry
| | - Feng Xu
- Physical Sciences and Engineering Division
- King Abdullah University of Science and Technology (KAUST)
- Thuwal 23955-6900
- Kingdom of Saudi Arabia
| | - Ali R. Behzad
- King Abdullah University of Science and Technology (KAUST)
- Core Labs
- Thuwal 23955-6900
- Kingdom of Saudi Arabia
| | - Omar el Tall
- King Abdullah University of Science and Technology (KAUST)
- Core Labs
- Thuwal 23955-6900
- Kingdom of Saudi Arabia
| | - Alexander Rothenberger
- Physical Sciences and Engineering Division
- King Abdullah University of Science and Technology (KAUST)
- Thuwal 23955-6900
- Kingdom of Saudi Arabia
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20
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Cui Z, Wang W, Obeng M, Chen M, Wu S, Kinloch I, Saunders BR. Using intra-microgel crosslinking to control the mechanical properties of doubly crosslinked microgels. SOFT MATTER 2016; 12:6985-94. [PMID: 27476758 DOI: 10.1039/c6sm01337f] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Microgels (MGs) are crosslinked polymer particles that swell when the pH approaches the pKa of the constituent polymer. Our earlier work showed that concentrated MG dispersions can be covalently interlinked to form macroscopic hydrogels, which are termed doubly crosslinked microgels (DX MGs). Here, we study for the first time the effects of intra-MG crosslinking on the swelling of the MGs and the mechanical properties of the DX MGs. The MGs were synthesised by emulsion copolymerisation of ethyl acrylate (EA) or methacrylic acid (MAA) and divinylbenzene (DVB). The latter was a crosslinking monomer. For comparison, MGs were prepared where DVB was replaced by either 1,4-butanediol diacrylate (BDDA) or a 1 : 1 mixture of both DVB and BDDA. The MG swelling behaviours were studied by dynamic light scattering; whereas, the DX MG mechanical properties were studied by dynamic rheology and uniaxial compression measurements. Inclusion of DVB within the MGs resulted in both highly swelling MGs and highly ductile DX MGs. The average strain-at-break value for the DVB-containing DX MGs was 76% which represents the highest value yet reported for a DX MG prepared using commercially available monomers. It was also shown that good tuneability of the DX MG properties could be obtained simply by controlling the DVB and BDDA contents within the MG particles. Analysis of the swelling and compression data enabled relationships between the volume-swelling ratio of the MGs and either the modulus or strain-at-break values for the DX MGs. These relationships also applied to a DVB-free system prepared with a low BDDA content. An interesting conclusion from this study is that the DX MGs can be thought of mechanically as macroscopic MG particles. The results of this study provide design tools for improving DX MG ductility and hence increasing the range of potential applications for this new class of hydrogel.
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Affiliation(s)
- Zhengxing Cui
- School of Materials, The University of Manchester, MSS Tower, Manchester, M13 9PL, UK.
| | - Wenkai Wang
- School of Materials, The University of Manchester, MSS Tower, Manchester, M13 9PL, UK.
| | - Melody Obeng
- School of Materials, The University of Manchester, MSS Tower, Manchester, M13 9PL, UK.
| | - Mu Chen
- School of Materials, The University of Manchester, MSS Tower, Manchester, M13 9PL, UK.
| | - Shanglin Wu
- School of Materials, The University of Manchester, MSS Tower, Manchester, M13 9PL, UK.
| | - Ian Kinloch
- School of Materials, The University of Manchester, MSS Tower, Manchester, M13 9PL, UK.
| | - Brian R Saunders
- School of Materials, The University of Manchester, MSS Tower, Manchester, M13 9PL, UK.
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21
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Rajesh R, Dominic Ravichandran Y, Jeevan Kumar Reddy M, Ryu SH, Shanmugharaj AM. Development of functionalized multi-walled carbon nanotube-based polysaccharide–hydroxyapatite scaffolds for bone tissue engineering. RSC Adv 2016. [DOI: 10.1039/c6ra16709h] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
fMWCNT–amylopectin–HAP and fMWCNT–gellan gum–HAP were prepared and characterized and their in vitro cell proliferation and ALP activity were checked for the first time.
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Affiliation(s)
- R. Rajesh
- Department of Science and Humanities
- Karpagam College of Engineering
- Coimbatore-641032
- India
- Materials Chemistry Division
| | | | | | - Sung Hun Ryu
- Department of Chemical Engineering
- Kyung Hee University
- Yongin
- South Korea
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22
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New superabsorbent hydrogels synthesized by copolymerization of acrylamide and N-2-hydroxyethyl acrylamide with itaconic acid or itaconates containing ethylene oxide units in the side chain. JOURNAL OF POLYMER RESEARCH 2015. [DOI: 10.1007/s10965-015-0876-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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23
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Hu J, Zhu Y, Tong H, Shen X, Chen L, Ran J. A detailed study of homogeneous agarose/hydroxyapatite nanocomposites for load-bearing bone tissue. Int J Biol Macromol 2015; 82:134-43. [PMID: 26434527 DOI: 10.1016/j.ijbiomac.2015.09.077] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Revised: 06/13/2015] [Accepted: 09/30/2015] [Indexed: 11/25/2022]
Abstract
Agarose/hydroxyapatite (agar/HA) nanocomposites for load-bearing bone substitutes were successfully fabricated via a novel in situ precipitation method. Observation via SEM and TEM revealed that the spherical inorganic nanoparticles of approximately 50 nm were well dispersed in the organic matrix, and the crystallographic area combined closely with the amorphous area. The uniform dispersion of HA nanoparticles had prominent effect on improving the mechanical properties of the agar/HA nanocomposites (the highest elastic modulus: 1104.42 MPa; the highest compressive strength: 400.039 MPa), which proved to be potential load-bearing bone substitutes. The thermal stability of agarose and nanocomposites was also studied. The MG63 osteoblast-like cells on the composite disks displayed fusiform and polygonal morphology in the presence of HA, suggesting that the cell maturation was promoted. The results of cell proliferation and cell differentiation indicated that the cells cultured on the agar/HA composite disks significantly increased the alkaline phosphatase activity and calcium deposition. The structural role of agarose in the composite system was investigated to better understand the effect of biopolymer on structure and properties of the composites. The optimal properties were the result of a comprehensive synergy of the components.
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Affiliation(s)
- Jingxiao Hu
- Key Laboratory of Analytical Chemistry for Biology and Medicine, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, 430072, PR China
| | - Youjia Zhu
- Department of Stomatology, Zhongnan Hospital, Wuhan University, 430071, PR China.
| | - Hua Tong
- Key Laboratory of Analytical Chemistry for Biology and Medicine, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, 430072, PR China; Suzhou Research Institute of Wuhan University, Suzhou, Jiangsu 215123, PR China
| | - Xinyu Shen
- Key Laboratory of Analytical Chemistry for Biology and Medicine, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, 430072, PR China.
| | - Li Chen
- Key Laboratory of Analytical Chemistry for Biology and Medicine, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, 430072, PR China
| | - Jiabing Ran
- Key Laboratory of Analytical Chemistry for Biology and Medicine, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, 430072, PR China
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24
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Paris J, Román J, Manzano M, Cabañas M, Vallet-Regí M. Tuning dual-drug release from composite scaffolds for bone regeneration. Int J Pharm 2015; 486:30-7. [DOI: 10.1016/j.ijpharm.2015.03.048] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2015] [Revised: 03/20/2015] [Accepted: 03/21/2015] [Indexed: 12/19/2022]
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25
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Rajesh R, Ravichandran YD. Development of new graphene oxide incorporated tricomponent scaffolds with polysaccharides and hydroxyapatite and study of their osteoconductivity on MG-63 cell line for bone tissue engineering. RSC Adv 2015. [DOI: 10.1039/c5ra07015e] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
GO–alginate–HAP, GO–amylopectin–HAP and GO–gellan gum–HAP were prepared and characterized and their osteoconductivity were checked for the first time.
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Affiliation(s)
- R. Rajesh
- Organic Chemistry Division
- School of Advanced Sciences
- VIT University
- Vellore-632014
- India
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26
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Xia Z, Villa MM, Wei M. A Biomimetic Collagen-Apatite Scaffold with a Multi-Level Lamellar Structure for Bone Tissue Engineering. J Mater Chem B 2014; 2:1998-2007. [PMID: 24999428 PMCID: PMC4078891 DOI: 10.1039/c3tb21595d] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Collagen-apatite (Col-Ap) scaffolds have been widely employed for bone tissue engineering. We fabricated a Col-Ap scaffold with a unique multi-level lamellar structure consisting of co-aligned micro and macro pores. The basic building blocks of this scaffold are bone-like mineralized collagen fibers developed via a biomimetic self-assembly process in a collagen-containing modified simulated body fluid (m-SBF). This biomimetic method preserves the structural integrity and great tensile strength of collagen by reinforcing the collagen hydrogel with apatite nano-particles. Unidirectional aligned macro pores with a size of 63.8 to 344 μm are created by controlling the freezing rate and direction. The thickness of Col-Ap lamellae can be adjusted in the range 3.6 to 23 μm depending on the self-compression time. Furthermore, the multi-level lamellar structure has led to a twelve-fold increase in Young's modulus and a two-fold increase in the compression modulus along the aligned direction compared to a scaffold of the same composition with an isotropic equiaxed pore structure. Moreover, this novel lamellar scaffold supports the attachment and spreading of MC3T3-E1osteoblasts. Therefore, owing to the biomimetic composition, tunable structure, improved mechanical strength, and good biocompatibility of this novel scaffold, it has great potential to be used in bone tissue engineering applications.
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Affiliation(s)
- Z Xia
- Department of Materials Science and Engineering, University of Connecticut, 97 North Eagleville Road, U-3136, Storrs, CT, 06269
| | - M M Villa
- Department of Materials Science and Engineering, University of Connecticut, 97 North Eagleville Road, U-3136, Storrs, CT, 06269
| | - M Wei
- Department of Materials Science and Engineering, University of Connecticut, 97 North Eagleville Road, U-3136, Storrs, CT, 06269
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27
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Marras-Marquez T, Peña J, Veiga-Ochoa MD. Agarose drug delivery systems upgraded by surfactants inclusion: critical role of the pore architecture. Carbohydr Polym 2013; 103:359-68. [PMID: 24528741 DOI: 10.1016/j.carbpol.2013.12.026] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2013] [Revised: 11/29/2013] [Accepted: 12/03/2013] [Indexed: 11/25/2022]
Abstract
Anionic or non-ionic surfactants have been introduced in agarose-based hydrogels aiming to tailor the release of drugs with different solubility. The release of a hydrophilic model drug, Theophylline, shows the predictable release enhancement that varies depending on the surfactant. However, when the hydrophobic Tolbutamide is considered, an unexpected retarded release is observed. This effect can be explained not only considering the interactions established between the drug loaded micelles and agarose but also to the alteration of the freeze-dried hydrogels microstructure. It has been observed that the modification of the porosity percentage as well as the pore size distribution during the lyophilization plays a critical role in the different phenomena that take place as soon as desiccated hydrogel is rehydrated. The possibility of tailoring the pore architecture as a function of the surfactant nature and percentage can be applied from drug control release to the widespread and growing applications of materials based on hydrogel matrices.
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Affiliation(s)
- T Marras-Marquez
- Departamento de Farmacia y Tecnología Farmacéutica, Facultad de Farmacia, Universidad Complutense de Madrid, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain.
| | - J Peña
- Departamento de Química Inorgánica y Bioinorgánica Facultad de Farmacia, Universidad Complutense de Madrid, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain.
| | - M D Veiga-Ochoa
- Departamento de Farmacia y Tecnología Farmacéutica, Facultad de Farmacia, Universidad Complutense de Madrid, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain.
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28
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Ambre AH, Katti DR, Katti KS. Nanoclays mediate stem cell differentiation and mineralized ECM formation on biopolymer scaffolds. J Biomed Mater Res A 2013; 101:2644-60. [DOI: 10.1002/jbm.a.34561] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2012] [Revised: 10/10/2012] [Accepted: 11/27/2012] [Indexed: 11/11/2022]
Affiliation(s)
- Avinash H. Ambre
- Department of Civil Engineering; North Dakota State University; Fargo; North Dakota 58105
| | - Dinesh R. Katti
- Department of Civil Engineering; North Dakota State University; Fargo; North Dakota 58105
| | - Kalpana S. Katti
- Department of Civil Engineering; North Dakota State University; Fargo; North Dakota 58105
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29
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One-step fabrication in aqueous solution of a granular alginate-based hydrogel for fast and efficient removal of heavy metal ions. JOURNAL OF POLYMER RESEARCH 2013. [DOI: 10.1007/s10965-013-0101-0] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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