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Maschmeyer T, Luque R, Selva M. Upgrading of marine (fish and crustaceans) biowaste for high added-value molecules and bio(nano)-materials. Chem Soc Rev 2020; 49:4527-4563. [PMID: 32510068 DOI: 10.1039/c9cs00653b] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
Currently, the Earth is subjected to environmental pressure of unprecedented proportions in the history of mankind. The inexorable growth of the global population and the establishment of large urban areas with increasingly higher expectations regarding the quality of life are issues demanding radically new strategies aimed to change the current model, which is still mostly based on linear economy approaches and fossil resources towards innovative standards, where both energy and daily use products and materials should be of renewable origin and 'made to be made again'. These concepts have inspired the circular economy vision, which redefines growth through the continuous valorisation of waste generated by any production or activity in a virtuous cycle. This not only has a positive impact on the environment, but builds long-term resilience, generating business, new technologies, livelihoods and jobs. In this scenario, among the discards of anthropogenic activities, biodegradable waste represents one of the largest and highly heterogeneous portions, which includes garden and park waste, food processing and kitchen waste from households, restaurants, caterers and retail premises, and food plants, domestic and sewage waste, manure, food waste, and residues from forestry, agriculture and fisheries. Thus, this review specifically aims to survey the processes and technologies for the recovery of fish waste and its sustainable conversion to high added-value molecules and bio(nano)materials.
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Affiliation(s)
- Thomas Maschmeyer
- F11 - School of Chemistry, The University of Sydney, NSW 2006, Australia
| | - Rafael Luque
- Department of Applied Chemistry, School of Science, Xi'an Jiaotong University, No. 28, Xianning West Road, Xi'an, 710049, P. R. China
| | - Maurizio Selva
- Dipartimento di Scienze Molecolari e Nanosistemi, Università Ca' Foscari Venezia, Via Torino, 155 - 30175 - Venezia Mestre, Italy.
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Perez-Puyana V, Jiménez-Rosado M, Romero A, Guerrero A. Fabrication and Characterization of Hydrogels Based on Gelatinised Collagen with Potential Application in Tissue Engineering. Polymers (Basel) 2020; 12:E1146. [PMID: 32429544 PMCID: PMC7284593 DOI: 10.3390/polym12051146] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 05/13/2020] [Accepted: 05/15/2020] [Indexed: 01/08/2023] Open
Abstract
Regenerative medicine is increasingly focused on the development of biomaterials that facilitate cell adhesion and proliferation through the use of natural polymers, which have better biocompatibility and biodegradability. In this way, the use of hydrogels has been considered as a potential option for tissue engineering due to their physical and chemical characteristics. However, few studies associate the raw materials properties and processing conditions with the final characteristics of hydrogels, which could condition their use as scaffolds for tissue engineering. In this context, the main objective of this work was the evaluation of type I collagen as raw material for the elaboration of hydrogels. In addition, gelation time, pH and temperature were evaluated as the most influential variables in the hydrogel processing method by rheological (time, strain and frequency sweep tests) and microstructural (Cryo-SEM) measurements. The results indicate that it is possible to obtain collagen hydrogels with adequate rheological and microstructural characteristics by selecting optimal processing conditions. However, further studies are necessary to assess their suitability for cell accommodation and growth.
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Affiliation(s)
- Victor Perez-Puyana
- Departamento de Ingeniería Química, Facultad de Química, Universidad de Sevilla, 41012 Sevilla, Spain; (V.P.-P.); (A.R.)
| | - Mercedes Jiménez-Rosado
- Departamento de Ingeniería Química, Escuela Politécnica Superior, Universidad de Sevilla, 41011 Sevilla, Spain;
| | - Alberto Romero
- Departamento de Ingeniería Química, Facultad de Química, Universidad de Sevilla, 41012 Sevilla, Spain; (V.P.-P.); (A.R.)
| | - Antonio Guerrero
- Departamento de Ingeniería Química, Escuela Politécnica Superior, Universidad de Sevilla, 41011 Sevilla, Spain;
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103
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Bordoni M, Scarian E, Rey F, Gagliardi S, Carelli S, Pansarasa O, Cereda C. Biomaterials in Neurodegenerative Disorders: A Promising Therapeutic Approach. Int J Mol Sci 2020; 21:ijms21093243. [PMID: 32375302 PMCID: PMC7247337 DOI: 10.3390/ijms21093243] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 05/01/2020] [Accepted: 05/02/2020] [Indexed: 02/07/2023] Open
Abstract
Neurodegenerative disorders (i.e., Alzheimer's disease, Parkinson's disease, amyotrophic lateral sclerosis, and spinal cord injury) represent a great problem worldwide and are becoming prevalent because of the increasing average age of the population. Despite many studies having focused on their etiopathology, the exact cause of these diseases is still unknown and until now, there are only symptomatic treatments. Biomaterials have become important not only for the study of disease pathogenesis, but also for their application in regenerative medicine. The great advantages provided by biomaterials are their ability to mimic the environment of the extracellular matrix and to allow the growth of different types of cells. Biomaterials can be used as supporting material for cell proliferation to be transplanted and as vectors to deliver many active molecules for the treatments of neurodegenerative disorders. In this review, we aim to report the potentiality of biomaterials (i.e., hydrogels, nanoparticles, self-assembling peptides, nanofibers and carbon-based nanomaterials) by analyzing their use in the regeneration of neural and glial cells their role in axon outgrowth. Although further studies are needed for their use in humans, the promising results obtained by several groups leads us to suppose that biomaterials represent a potential therapeutic approach for the treatments of neurodegenerative disorders.
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Affiliation(s)
- Matteo Bordoni
- Dipartimento di Scienze Farmacologiche e Biomolecolari (DiSFeB), Centro di Eccellenza sulle Malattie Neurodegenerative, Università degli Studi di Milano, Via Balzaretti 9, 20133 Milano, Italy;
| | - Eveljn Scarian
- Department of Brain and Behavioural Sciences, University of Pavia, Via Forlanini 6, 27100 Pavia, Italy;
- Genomic and post-Genomic Center, IRCCS Mondino Foundation, Via Mondino 2, 27100 Pavia, Italy; (S.G.); (C.C.)
| | - Federica Rey
- Department of Biomedical and Clinical Sciences “L. Sacco”, University of Milan, Via Grassi 74, 20157 Milan, Italy; (F.R.); (S.C.)
- Pediatric Clinical Research Center Fondazione “Romeo ed Enrica Invernizzi”, University of Milan, Via Grassi, 74, 20157 Milan, Italy
| | - Stella Gagliardi
- Genomic and post-Genomic Center, IRCCS Mondino Foundation, Via Mondino 2, 27100 Pavia, Italy; (S.G.); (C.C.)
| | - Stephana Carelli
- Department of Biomedical and Clinical Sciences “L. Sacco”, University of Milan, Via Grassi 74, 20157 Milan, Italy; (F.R.); (S.C.)
- Pediatric Clinical Research Center Fondazione “Romeo ed Enrica Invernizzi”, University of Milan, Via Grassi, 74, 20157 Milan, Italy
| | - Orietta Pansarasa
- Genomic and post-Genomic Center, IRCCS Mondino Foundation, Via Mondino 2, 27100 Pavia, Italy; (S.G.); (C.C.)
- Correspondence: ; Tel.: +39-0382-380-248
| | - Cristina Cereda
- Genomic and post-Genomic Center, IRCCS Mondino Foundation, Via Mondino 2, 27100 Pavia, Italy; (S.G.); (C.C.)
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Abstract
The spectrum of ischemic heart diseases, encompassing acute myocardial infarction to heart failure, represents the leading cause of death worldwide. Although extensive progress in cardiovascular diagnoses and therapy has been made, the prevalence of the disease continues to increase. Cardiac regeneration has a promising perspective for the therapy of heart failure. Recently, extracellular matrix (ECM) has been shown to play an important role in cardiac regeneration and repair after cardiac injury. There is also evidence that the ECM could be directly used as a drug to promote cardiomyocyte proliferation and cardiac regeneration. Increasing evidence supports that applying ECM biomaterials to maintain heart function recovery is an important approach to apply the concept of cardiac regenerative medicine to clinical practice in the future. Here, we will introduce the essential role of cardiac ECM in cardiac regeneration and summarize the approaches of delivering ECM biomaterials to promote cardiac repair in this review.
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Affiliation(s)
- Haotong Li
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037, China
| | - Minghui Bao
- Department of Cardiology, Peking University First Hospital, Beijing, China
| | - Yu Nie
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037, China.
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105
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Alves P, Gomes LC, Vorobii M, Rodriguez-Emmenegger C, Mergulhão FJ. The potential advantages of using a poly(HPMA) brush in urinary catheters: effects on biofilm cells and architecture. Colloids Surf B Biointerfaces 2020; 191:110976. [PMID: 32272386 DOI: 10.1016/j.colsurfb.2020.110976] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 03/11/2020] [Accepted: 03/12/2020] [Indexed: 12/21/2022]
Abstract
Infections related to bacterial colonization of medical devices are a growing concern given the socio-economical impacts in healthcare systems. Colonization of a device surface with bacteria usually triggers the development of a biofilm, which is more difficult to eradicate than free-floating or adhered bacteria and can act as a reservoir for subsequent infections. Biofilms often harbor Viable but nonculturable (VBNC) cells that are likely to be more resistant to antibiotic treatment and that can become active in more favorable conditions causing infection. Biofilm formation is dependent on different factors, chiefly the properties of the surface and of the surrounding medium, and the hydrodynamic conditions. In this work, the antifouling performance of a poly[N-(2-hydroxypropyl) methacrylamide] (poly(HPMA)) brush was evaluated in vitro in conditions that mimic a urinary catheter using Escherichia coli as a model organism. The results obtained with the brush were compared to those obtained with two control surfaces, polydimethylsiloxane (PDMS) (the most common material for catheters) and glass. A decrease in initial adhesion and surface coverage was observed on the brush. This antifouling behavior was maintained during biofilm maturation and even in a simulated post-bladder infection period when the reduction in total cell number reached 87 %. Biofilms were shown to adapt their architecture during that period and VBNC cells adsorbed weakly on the brushes and were completely washed away. Taken together, these results suggest that the use of the poly(HPMA) brush in urinary tract devices such as catheters and stents may reduce biofilm formation and possibly render the formed biofilms more susceptible to antibiotic treatment and with reduced infectivity potential.
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Affiliation(s)
- P Alves
- LEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - L C Gomes
- LEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - M Vorobii
- DWI - Leibniz Institute for Interactive Materials and Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Forckenbeckstraße 50, 52074 Aachen, Germany
| | - C Rodriguez-Emmenegger
- DWI - Leibniz Institute for Interactive Materials and Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Forckenbeckstraße 50, 52074 Aachen, Germany.
| | - F J Mergulhão
- LEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal.
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106
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107
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Kim J. Systematic approach to characterize the dynamics of protein adsorption on the surface of biomaterials using proteomics. Colloids Surf B Biointerfaces 2020; 188:110756. [DOI: 10.1016/j.colsurfb.2019.110756] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2019] [Revised: 12/03/2019] [Accepted: 12/23/2019] [Indexed: 01/08/2023]
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108
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Pistone A, Iannazzo D, Celesti C, Scolaro C, Giofré SV, Romeo R, Visco A. Chitosan/PAMAM/Hydroxyapatite Engineered Drug Release Hydrogels with Tunable Rheological Properties. Polymers (Basel) 2020; 12:E754. [PMID: 32244275 PMCID: PMC7240481 DOI: 10.3390/polym12040754] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 03/22/2020] [Accepted: 03/24/2020] [Indexed: 12/26/2022] Open
Abstract
In this paper, a new formulation of biodegradable and bioresorbable chitosan-based hydrogel for controlled drug release was investigated. A chitosan-dendrimer-hydroxyapatite hydrogel, obtained by covalently grafting chitosan powder with an hyperbranched PAMAM dendrimer followed by in-situ precipitation of hydroxyapatite and gelification, was synthesized and characterized by FTIR, NMR, TGA, XRD and rheological studies. The hydrogels have been also doped with an anti-inflammatory drug (ketoprofen) in order to investigate their drug release properties. Chemical and chemical-physical characterizations confirmed the successful covalent functionalization of chitosan with PAMAM and the synthesis of nanostructured hydroxyapatite. The developed hydrogel made it possible to obtain an innovative system with tunable rheological and drug-releasing properties relative to the well-known formulation containing chitosan and hydroxyapatite powder. The developed hydrogel showed different rheological and drug-releasing properties of chitosan matrix mixed with hydroxyapatite as a function of dendrimer molecular weight; therefore, the chitosan-dendrimer-hydroxyapatite hydrogel can couple the well-known osteoconductive properties of hydroxyapatite with the drug-release behavior and good processability of chitosan-dendrimer hydrogels, opening new approaches in the field of tissue engineering based on biopolymeric scaffolds.
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Affiliation(s)
- Alessandro Pistone
- Department of Engineering, University of Messina, Contrada Di Dio, I-98166 Messina, Italy; (C.C.); (C.S.); (A.V.)
| | - Daniela Iannazzo
- Department of Engineering, University of Messina, Contrada Di Dio, I-98166 Messina, Italy; (C.C.); (C.S.); (A.V.)
| | - Consuelo Celesti
- Department of Engineering, University of Messina, Contrada Di Dio, I-98166 Messina, Italy; (C.C.); (C.S.); (A.V.)
| | - Cristina Scolaro
- Department of Engineering, University of Messina, Contrada Di Dio, I-98166 Messina, Italy; (C.C.); (C.S.); (A.V.)
| | - Salvatore V. Giofré
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Annunziata, I-98168 Messina, Italy; (S.V.G.); (R.R.)
| | - Roberto Romeo
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Annunziata, I-98168 Messina, Italy; (S.V.G.); (R.R.)
| | - Annamaria Visco
- Department of Engineering, University of Messina, Contrada Di Dio, I-98166 Messina, Italy; (C.C.); (C.S.); (A.V.)
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109
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Im GI. Biomaterials in orthopaedics: the past and future with immune modulation. Biomater Res 2020; 24:7. [PMID: 32042442 PMCID: PMC7001269 DOI: 10.1186/s40824-020-0185-7] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Accepted: 01/28/2020] [Indexed: 02/07/2023] Open
Abstract
Orthopaedics owes its current status of advanced care to the development of biomaterial science more than any other clinical medical specialty. The purpose of this brief review is to introduce the history and present status of biomaterials in orthopaedic field and cast a perspective on the future use of biomaterials to treat musculoskeletal disorders with particular emphasis on immune modulation. While the biomaterials in orthopaedics started from inert materials to replace the function and structure of hard tissue such as bone and cartilage, regenerative medicine will play a greater role in preventing the traumatic loss of tissues, as well as in the earlier stages of diseases. The understanding and modulation of immune response to biomaterials will further lead to the better incorporation of implants into host tissue or the near-perfect regeneration of host tissue.
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Affiliation(s)
- Gun-Il Im
- Research Institute for Integrative Regenerative Biomedical Engineering, Dongguk University Ilsan Hospital, 814 Siksa-Dong, Goyang, 410-773 Republic of Korea
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110
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Liu G, David BT, Trawczynski M, Fessler RG. Advances in Pluripotent Stem Cells: History, Mechanisms, Technologies, and Applications. Stem Cell Rev Rep 2020; 16:3-32. [PMID: 31760627 PMCID: PMC6987053 DOI: 10.1007/s12015-019-09935-x] [Citation(s) in RCA: 228] [Impact Index Per Article: 57.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Over the past 20 years, and particularly in the last decade, significant developmental milestones have driven basic, translational, and clinical advances in the field of stem cell and regenerative medicine. In this article, we provide a systemic overview of the major recent discoveries in this exciting and rapidly developing field. We begin by discussing experimental advances in the generation and differentiation of pluripotent stem cells (PSCs), next moving to the maintenance of stem cells in different culture types, and finishing with a discussion of three-dimensional (3D) cell technology and future stem cell applications. Specifically, we highlight the following crucial domains: 1) sources of pluripotent cells; 2) next-generation in vivo direct reprogramming technology; 3) cell types derived from PSCs and the influence of genetic memory; 4) induction of pluripotency with genomic modifications; 5) construction of vectors with reprogramming factor combinations; 6) enhancing pluripotency with small molecules and genetic signaling pathways; 7) induction of cell reprogramming by RNA signaling; 8) induction and enhancement of pluripotency with chemicals; 9) maintenance of pluripotency and genomic stability in induced pluripotent stem cells (iPSCs); 10) feeder-free and xenon-free culture environments; 11) biomaterial applications in stem cell biology; 12) three-dimensional (3D) cell technology; 13) 3D bioprinting; 14) downstream stem cell applications; and 15) current ethical issues in stem cell and regenerative medicine. This review, encompassing the fundamental concepts of regenerative medicine, is intended to provide a comprehensive portrait of important progress in stem cell research and development. Innovative technologies and real-world applications are emphasized for readers interested in the exciting, promising, and challenging field of stem cells and those seeking guidance in planning future research direction.
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Affiliation(s)
- Gele Liu
- Department of Neurosurgery, Rush University Medical College, 1725 W. Harrison St., Suite 855, Chicago, IL, 60612, USA.
| | - Brian T David
- Department of Neurosurgery, Rush University Medical College, 1725 W. Harrison St., Suite 855, Chicago, IL, 60612, USA
| | - Matthew Trawczynski
- Department of Neurosurgery, Rush University Medical College, 1725 W. Harrison St., Suite 855, Chicago, IL, 60612, USA
| | - Richard G Fessler
- Department of Neurosurgery, Rush University Medical College, 1725 W. Harrison St., Suite 855, Chicago, IL, 60612, USA
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111
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Perveen K, Masood F, Hameed A. Preparation, characterization and evaluation of antibacterial properties of epirubicin loaded PHB and PHBV nanoparticles. Int J Biol Macromol 2020; 144:259-266. [DOI: 10.1016/j.ijbiomac.2019.12.049] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 11/30/2019] [Accepted: 12/05/2019] [Indexed: 12/31/2022]
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112
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Li K, Wang D, Zhao K, Song K, Liang J. Electrohydrodynamic jet 3D printing of PCL/PVP composite scaffold for cell culture. Talanta 2020; 211:120750. [PMID: 32070610 DOI: 10.1016/j.talanta.2020.120750] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 01/11/2020] [Accepted: 01/14/2020] [Indexed: 12/21/2022]
Abstract
Controlled printing of biodegradable and bioresorbable polymers at desired 3D scaffold is of great importance for cell growth and tissue regeneration. In this work, a novel electrohydrodynamic jet 3D printing technology with the resultant effect of electrohydrodynamic force and thermal convection was developed, and its feasibility to fabricate controllable filament composite scaffolds was verified. This method introduces an effective thermal field under the needle to simultaneously enhance the ink viscosity, jetting morphology controllability and printing structure solidify. The fabrication mechanisms of thermal convection on jetting morphology and printed structures feature were investigated through theoretical analysis and experimental characterization. Under optimized conditions, a stable and finer jet was formed; then with the use of this jet, various 3D structures were directly printed at a high aspect ratio ~30. Furthermore, the PCL/PVP composite scaffolds with the controllable filament diameter (~10 μm) which is closed to living cells were printed. Cell culture experiments showed that the printed scaffolds had excellent cell biocompatibility and facilitated cellular proliferation in vitro. It is a great potential that the developed electrohydrodynamic jet 3D printing technology might provide a novel approach to directly print composite synthetic biopolymers into flexibly scale structures for tissue engineering applications.
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Affiliation(s)
- Kai Li
- Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian University of Technology, Dalian, 116024, China
| | - Dazhi Wang
- Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian University of Technology, Dalian, 116024, China; Key Laboratory for Precision and Non-traditional Machining Technology of Ministry of Education, Dalian University of Technology, Dalian, 116024, China.
| | - Kuipeng Zhao
- Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian University of Technology, Dalian, 116024, China
| | - Kedong Song
- State Key Laboratory of Fine Chemicals, Dalian R&D Center for Stem Cell and Tissue Engineering, Dalian University of Technology, Dalian, 116024, China
| | - Junsheng Liang
- Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian University of Technology, Dalian, 116024, China; Key Laboratory for Precision and Non-traditional Machining Technology of Ministry of Education, Dalian University of Technology, Dalian, 116024, China
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113
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Stepanovska J, Matejka R, Rosina J, Bacakova L, Kolarova H. Treatments for enhancing the biocompatibility of titanium implants. Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub 2020; 164:23-33. [PMID: 31907491 DOI: 10.5507/bp.2019.062] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Accepted: 12/17/2019] [Indexed: 12/31/2022] Open
Abstract
Titanium surface treatment is a crucial process for achieving sufficient osseointegration of an implant into the bone. If the implant does not heal sufficiently, serious complications may occur, e.g. infection, inflammation, aseptic loosening of the implant, or the stress-shielding effect, as a result of which the implant may need to be reoperated. After a titanium graft has been implanted, several interactions are crucial in order to create a strong bone-implant connection. It is essential that cells adhere to the surface of the implant. Surface roughness has a significant influence on cell adhesion, and also on improving and accelerating osseointegration. Other highly important factors are biocompatibility and resistance to bacterial contamination. Bio-inertness of titanium is ensured by the protective film of titanium oxides that forms spontaneously on its surface. This film prevents the penetration of metal compounds, and it is well-adhesive for calcium and phosphate ions, which are necessary for the formation of the mineralized bone structure. Since the presence of the film alone is not sufficient for the biocompatibility of titanium, a suitable surface finish is required to create a firm bone-implant connection. In this review, we explain and compare the most widely-used methods for modulating the surface roughness of titanium implants in order to enhance cell adhesion on the surface of the implant, e.g. plasma spraying, sandblasting, acid etching, laser treatment, sol-gel etc., The methods are divided into three overlapping groups, according to the type of modification.
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Affiliation(s)
- Jana Stepanovska
- Department of Biomedical Technology, Faculty of Biomedical Engineering, Czech Technical University in Prague, Kladno, Czech Republic.,Department of Biomaterials and Tissue Engineering, Institute of Physiology, Czech Academy of Sciences, Prague, Czech Republic
| | - Roman Matejka
- Department of Biomedical Technology, Faculty of Biomedical Engineering, Czech Technical University in Prague, Kladno, Czech Republic.,Department of Biomaterials and Tissue Engineering, Institute of Physiology, Czech Academy of Sciences, Prague, Czech Republic
| | - Jozef Rosina
- Department of Biomedical Technology, Faculty of Biomedical Engineering, Czech Technical University in Prague, Kladno, Czech Republic
| | - Lucie Bacakova
- Department of Biomaterials and Tissue Engineering, Institute of Physiology, Czech Academy of Sciences, Prague, Czech Republic
| | - Hana Kolarova
- Department of Medical Biophysics, Faculty of Medicine and Dentistry, Palacky University Olomouc, Olomouc, Czech Republic
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114
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Perez-Puyana V, Rubio-Valle J, Jiménez-Rosado M, Guerrero A, Romero A. Chitosan as a potential alternative to collagen for the development of genipin-crosslinked scaffolds. REACT FUNCT POLYM 2020. [DOI: 10.1016/j.reactfunctpolym.2019.104414] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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115
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Xisto M, Barauna Júnior D, Cardoso P, Olivier N, Antonelli A. Análise da resistência de placas ósseas de acrílico fabricadas a laser quando submetidas a diferentes forças que agem sobre o foco de fratura. ARQ BRAS MED VET ZOO 2019. [DOI: 10.1590/1678-4162-10273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
RESUMO Objetivou-se com este trabalho analisar a resistência de placas ósseas de acrílico, confeccionadas com cortadora a laser CO2, quando submetidas às forças que agem sobre o foco de fratura. Foram utilizados 40 fêmures de ovinos (Ovis aries) e confeccionadas 40 placas de acrílico, os quais foram avaliados em grupos: grupo OP - foram avaliados 20 ossos fraturados reduzidos com 20 placas de acrílico; grupo PS - foram avaliadas 20 placas de acrílico; e grupo OS - foram avaliados 20 ossos íntegros e frescos. Todos foram submetidos a ensaios mecânicos de compressão, flexão, torção e tração, em máquina de ensaios universal EMIC® 10000. Os testes eram interrompidos quando havia fratura do corpo de prova. O grupo PS suportou carga de compressão significativamente superior aos demais grupos OP e OS (13.255±290N, 4.932±827N e 8.681±303N, respectivamente). Já em relação à prova de flexão, o grupo OS foi significativamente mais resistente, com média de 2.698±305N, em relação aos grupos OP e PS, que obtiveram 1.315±92N e 1.537±37N, respectivamente. Conclui-se que as placas de acrílico usinadas a laser apresentam resistência mecânica inferior ao fêmur de ovinos, entretanto, devido à resistência exibida nos testes, demonstraram potencial para serem implantadas em ossos com menor demanda de carga.
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Affiliation(s)
- M.P.C. Xisto
- Universidade Federal do Vale do São Francisco, Brazil
| | | | | | - N.C. Olivier
- Universidade Federal do Vale do São Francisco, Brazil
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116
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Michaelis M, Fayyaz A, Parambath M, Koeppen S, Ciacchi LC, Hanley QS, Perry CC. Platform for Screening Abiotic/Biotic Interactions Using Indicator Displacement Assays. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:14230-14237. [PMID: 31609123 DOI: 10.1021/acs.langmuir.9b03085] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
This paper describes novel adaptations of optically sectioned planar format assays to screen compounds for their affinities to materials surfaces. The novel platform, which we name optically sectioned indicator displacement assays (O-IDA), makes use of displaceable dyes in a format adaptable to high-throughput multiwell plate technologies. We describe two approaches: the first being where the dye exhibits fluorescence in both the surface bound and unbound state and the second, where fluorescence is lost upon displacement of the dye from the surface. Half maximal inhibitory concentration (IC50), binding affinity (Ki), and binding free energy (ΔGads) values can be extracted from the raw data. Representative biomolecules were tested for interactions with silica in an aqueous environment and ZnO(0001)-Zn and (10-10) facets in a nonaqueous environment. We provide the first experimental values for both the binding of small molecules to silica and the facet-dependent ZnO binding affinity of key amino acids associated with ZnO-specific oligopeptides. The specific data will be invaluable to those studying interactions at interfaces both experimentally and computationally. O-IDA provides a general framework for the high-throughput screening of molecule binding to materials surfaces, which has important applications in drug delivery, (bio-) catalysis, biosensing, and biomaterial engineering.
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Affiliation(s)
- Monika Michaelis
- Hybrid Materials Interfaces Group, Faculty of Production Engineering, Bremen Center for Computational Material Science (BCCMS), Center for Environmental Research and Sustainable Technology (UFT) and MAPEX Centre for Materials and Processes , University of Bremen , D-28359 Bremen , Germany
| | | | | | - Susan Koeppen
- Hybrid Materials Interfaces Group, Faculty of Production Engineering, Bremen Center for Computational Material Science (BCCMS), Center for Environmental Research and Sustainable Technology (UFT) and MAPEX Centre for Materials and Processes , University of Bremen , D-28359 Bremen , Germany
| | - Lucio Colombi Ciacchi
- Hybrid Materials Interfaces Group, Faculty of Production Engineering, Bremen Center for Computational Material Science (BCCMS), Center for Environmental Research and Sustainable Technology (UFT) and MAPEX Centre for Materials and Processes , University of Bremen , D-28359 Bremen , Germany
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117
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Madhusoodan AP, Das K, Mili B, Kumar K, Kumar A, Saxena AC, Singh P, Dutt T, Bag S. In vitro proliferation and differentiation of canine bone marrow derived mesenchymal stem cells over hydroxyl functionalized CNT substrates. ACTA ACUST UNITED AC 2019; 24:e00387. [PMID: 31799142 PMCID: PMC6881647 DOI: 10.1016/j.btre.2019.e00387] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 09/06/2019] [Accepted: 10/14/2019] [Indexed: 11/26/2022]
Abstract
Nanotopography of culture substrate acts as a positive cue in cell-biomaterial based tissue regeneration. Considering the potentiality of carbon nanotubes (CNTs) this study was designed to evaluate its two functionalized form by an in vitro culture condition using canine mesenchymal stem cells as cellular model. Cells were isolated and its behaviour, proliferation and differentiation processes were elucidated onto CNT substrates. Beside the variations in cellular behaviour it was remarkably noted that even though proliferation was reduced but osteogenic and chondrogenic differentiation was enhanced over multi-walled CNTs, whereas neuronal differentiation was better supported by single walled CNTs as evidenced by our cytochemical, immunocytochemical, gene expression and flow cytometry assays. The former one was noticed more cytocompatible by our different apoptosis studies. The outcome of these experiments collectively indicated that hydroxylated functionalized CNTs could be a potential scaffold constituent for future experimentations as well as for the application in regenerative medicine.
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Affiliation(s)
- A P Madhusoodan
- Division of Physiology and Climatology, ICAR - Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, India
| | - Kinsuk Das
- Division of Physiology and Climatology, ICAR - Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, India
| | - Bhabesh Mili
- Division of Physiology and Climatology, ICAR - Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, India
| | - Kuldeep Kumar
- Division of Physiology and Climatology, ICAR - Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, India
| | - Ajay Kumar
- Biochemistry and Food Science Section, ICAR - Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, India
| | - A C Saxena
- Division of Surgery, Izatnagar, ICAR - Indian Veterinary Research Institute, Uttar Pradesh, India
| | - Praveen Singh
- Biophysics, Electron Microscopy and Instrumentation Section, ICAR - Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, India
| | - Triveni Dutt
- Division of Livestock Production and Management, ICAR - Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, India
| | - Sadhan Bag
- Division of Physiology and Climatology, ICAR - Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, India
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118
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Chokoza C, Gustafsson CA, Goetsch KP, Zilla P, Thierfelder N, Pisano F, Mura M, Gnecchi M, Bezuidenhout D, Davies NH. Tuning Tissue Ingrowth into Proangiogenic Hydrogels via Dual Modality Degradation. ACS Biomater Sci Eng 2019; 5:5430-5438. [PMID: 33464063 DOI: 10.1021/acsbiomaterials.9b01220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The potential to control the rate of replacement of a biodegradable implant by a tissue would be advantageous. Here, we demonstrate that tissue invasion can be tuned through the novel approach of overlaying an enzymatically degradable hydrogel with an increasingly hydrolytically degradable environment. Poly(ethylene glycol) (PEG) hydrogels were formed from varying proportions of PEG-vinyl sulfone and PEG-acrylate (PEG-AC) monomers via a Michael-type addition reaction with a dithiol-containing matrix-metalloproteinase-susceptible peptide cross-linker. Swelling studies showed that PEG hydrogels with similar initial stiffnesses degraded more rapidly as the PEG-AC content increased. The replacement of subcutaneously implanted PEG hydrogels was also found to be proportional to their PEG-AC content. In addition, it would in many instances be desirable that these materials have the ability to stimulate their neovascularization. These hydrogels contained covalently bound heparin, and it was shown that a formulation of the hydrogel that allowed tissue replacement to occur over 1 month could trap and release growth factors and increase neovascularization by 50% over that time.
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Affiliation(s)
| | | | | | | | - Nikolaus Thierfelder
- Department of Cardiac Surgery, Ludwig-Maximilians University Munich, Leopoldstraße 13, 80802 Munich, Germany
| | - Federica Pisano
- Department of Molecular Medicine, Unit of Cardiology, University of Pavia, Viale Camillo Golgi, 19, 27100 Pavia, Italy
| | - Manuela Mura
- Department of Molecular Medicine, Unit of Cardiology, University of Pavia, Viale Camillo Golgi, 19, 27100 Pavia, Italy
| | - Massimiliano Gnecchi
- Department of Molecular Medicine, Unit of Cardiology, University of Pavia, Viale Camillo Golgi, 19, 27100 Pavia, Italy
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119
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Santana HS, Palma MSA, Lopes MGM, Souza J, Lima GAS, Taranto OP, Silva JL. Microfluidic Devices and 3D Printing for Synthesis and Screening of Drugs and Tissue Engineering. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b03787] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Harrson S. Santana
- School of Chemical Engineering, University of Campinas, 13083-852 Campinas, São Paulo, Brazil
| | - Mauri S. A. Palma
- Department of Biochemical and Pharmaceutical Technology, São Paulo University, 05508-000 São Paulo, São Paulo, Brazil
| | - Mariana G. M. Lopes
- School of Chemical Engineering, University of Campinas, 13083-852 Campinas, São Paulo, Brazil
| | - Johmar Souza
- School of Chemical Engineering, University of Campinas, 13083-852 Campinas, São Paulo, Brazil
| | - Giovanni A. S. Lima
- Institute of Environmental, Chemical, and Pharmaceutical Sciences Federal, University of São Paulo, 09972-270 Diadema, São Paulo, Brazil
| | - Osvaldir P. Taranto
- School of Chemical Engineering, University of Campinas, 13083-852 Campinas, São Paulo, Brazil
| | - João Lameu Silva
- Federal Institute of Education, Science, and Technology of South of Minas Gerais − IFSULDEMINAS, 37560-260 Pouso Alegre, Minas Gerais, Brazil
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120
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Bassous NJ, Jones CL, Webster TJ. 3-D printed Ti-6Al-4V scaffolds for supporting osteoblast and restricting bacterial functions without using drugs: Predictive equations and experiments. Acta Biomater 2019; 96:662-673. [PMID: 31279162 DOI: 10.1016/j.actbio.2019.06.055] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 06/20/2019] [Accepted: 06/27/2019] [Indexed: 12/28/2022]
Abstract
Conditions resulting from musculoskeletal deficiencies (MSDs) are wide-ranging and retain the likelihood for restricting motion or producing pain, especially in the lower back, neck, and upper limbs. Engineered scaffold devices are being produced to replace antiquated modalities that suffer from structural and mechanical deficiencies in the treatment of MSDs. Here, as-fabricated Ti-6Al-4V-based Hive™ interbody fusion scaffolds, commercialized by HD Lifesciences LLC, were assayed for their osteogenicity and antibacterial potential using a series of characterization and in vitro tests, as well as by quantitative analyses. A topographical assessment of the Hive™ meshes indicated that the elementally pure substrates are microscopically porous and rough, in addition to displaying structural heterogeneity. Roughness estimations and static contact angle measurements recommended the use of the as-fabricated Ti-6Al-4V substrates for supporting osteoblast attachment, especially, due to the improved surface roughness and wettability values of these scaffolds relative to the unembellished Ti-6Al-4V surfaces. Quantitative correlations relating the surface properties of roughness and energy were applied to predict cellular behaviors. Cell growth suppositions were experimentally corroborated. Critical in vitro data indicated the competencies of the Hive™ scaffolds for promoting the adhesion and proliferation of human fetal osteoblasts (hFOBs), accumulating substantial calcium deposition from metabolizing hFOBs, and restricting the attachment of bacteria. The model system that investigated the pre-adsorption of casein proteins along the Hive™ test substrates additionally furthered the notion that bacterial attachment may be restricted, with short-scale adhesion dynamics serving as the theoretical basis for this hypothesis. In this manner, this study showed that through predictive models and experiments, these novel 3D printed Ti-based scaffolds can increase bone cell while decreasing bacteria functions without using drugs. STATEMENT OF SIGNIFICANCE: Sintered Ti-6Al-4V spinal fusion devices (Hive™) manufactured and marketed by HD Lifesciences LLC were assessed for their biocompatibility and antibacterial performance. A mixed methods approach was employed, whereby quantitative measures were used to predict the ability for Hive™ substrates to adsorb specialized proteins and to restrict bacterial surface colonization. In vitro tests that evaluated bone cell and bacterial adhesion, calcium deposition, and protein adsorption supported quantitative predictions. The data herein presented demonstrate the following: (1) surface energy is an important predictor of implant-cell interactions, (2) strong correlations exist between surface energy and surface roughness, (3) mathematical models can be used to improve and predict implant device perofrmance, and (4) porous, rough, 3D-printed materials perform well in terms of biocompatibility and antimicrobial efficacy.
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121
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Villard P, Rezaeeyazdi M, Colombani T, Joshi‐Navare K, Rana D, Memic A, Bencherif SA. Autoclavable and Injectable Cryogels for Biomedical Applications. Adv Healthc Mater 2019; 8:e1900679. [PMID: 31348620 DOI: 10.1002/adhm.201900679] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 07/04/2019] [Indexed: 11/06/2022]
Abstract
Prior to any clinical application, terminal sterilization of biomaterials is a critical process imposed by the Food and Drug Administration. Of all the methods available for sterilization, high-pressure steam sterilization such as autoclaving is the most widely used. While autoclave sterilization minimizes pathogen contamination, it can dramatically impact both structural and biological properties of biomaterials. It has recently been reported that injectable cryogels with shape memory properties hold great promises as 3D macroporous biomimetic scaffolds for biomedical applications including tissue engineering. In this study, the impact of autoclave sterilization on properties of a series of cryogels is measured. Unlike conventional hydrogels, cryogels made of natural polymers demonstrate a strong resilience to autoclave sterilization. This process does not alter either their macrostructural or unique physical properties including syringe injectability. The scaffolds' bioactive sites are preserved and autoclaved cryogels retain their excellent cytological compatibility post-autoclaving. Furthermore, autoclaved cryogels do not trigger a notable activation of primary murine bone marrow-derived dendritic cells suggesting a minimal risk for biomaterial-induced inflammation, which is further confirmed by an in vivo histologic analysis. In summary, these results further demonstrate the huge potential of cryogels in the biomedical field and their capacity to be translated into clinical applications.
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Affiliation(s)
- Pierre Villard
- Center of NanotechnologyKing Abdulaziz University Jeddah 21589 Saudi Arabia
- Department of Chemical EngineeringNortheastern University Boston MA 02215 USA
| | | | - Thibault Colombani
- Department of Chemical EngineeringNortheastern University Boston MA 02215 USA
| | | | - Devyesh Rana
- Department of Chemical EngineeringNortheastern University Boston MA 02215 USA
| | - Adnan Memic
- Center of NanotechnologyKing Abdulaziz University Jeddah 21589 Saudi Arabia
| | - Sidi A. Bencherif
- Department of Chemical EngineeringNortheastern University Boston MA 02215 USA
- Department of BioengineeringNortheastern University Boston MA 02215 USA
- John A. Paulson School of Engineering and Applied SciencesHarvard University Cambridge MA 02138 USA
- Laboratory of Biomechanics & Bioengineering (BMBI)Sorbonne UniversityUniversity of Technology of Compiègne (UTC) 60200 Compiègne France
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122
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Bernal-Ballen A, Lopez-Garcia JA, Ozaltin K. (PVA/Chitosan/Fucoidan)-Ampicillin: A Bioartificial Polymeric Material with Combined Properties in Cell Regeneration and Potential Antibacterial Features. Polymers (Basel) 2019; 11:polym11081325. [PMID: 31395803 PMCID: PMC6724007 DOI: 10.3390/polym11081325] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 07/30/2019] [Accepted: 08/06/2019] [Indexed: 12/31/2022] Open
Abstract
Chitosan, fucoidan, and polyvinyl alcohol are categorized as polymers with biomedical applications. Ampicillin, on the other hand, is considered as an important antibiotic that has shown effectivity in both gram-positive and gram-negative micro-organisms. The aforementioned polymers possess unique properties that are considered desirable for cell regeneration although they exhibit drawbacks that can affect their final application. Therefore, films of these biomaterials were prepared and they were characterized using FTIR, SEM, XRD, degree of swelling and solubility, and MTT assay. The statistical significance of the experiments was determined using a two-way analysis of variance (ANOVA) with p < 0.05. The characterization techniques demonstrated that the obtained material exhibits properties suitable for cell regeneration, and that a higher concentration of natural polymers promotes cells proliferation to a greater extent. The presence of PVA, on the other hand, is responsible for matrix stability and dictates the degree of swelling and solubility. The SEM images demonstrated that neither aggregations nor clusters were formed, which is favorable for the biological properties without detrimental to the morphological and physical features. Cell viability was comparatively similar in samples with and without antibiotic, and the physical and biological properties were not negatively affected. Indeed, the inherent bactericidal effect of chitosan was reinforced by the presence of ampicillin. The new material is an outstanding candidate for cell regeneration as a consequence of the synergic effect that each component provides to the blend.
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Affiliation(s)
- Andres Bernal-Ballen
- Grupo de Investigación en Ingeniería Biomédica, Vicerrectoría de Investigaciones, Universidad Manuela Beltrán, Avenida Circunvalar No. 60-00, Bogotá 110231, Colombia.
| | - Jorge-Andres Lopez-Garcia
- Centre of Polymer Systems, Tomas Bata University in Zlín, Tr. Tomase Bati 5678, 76001 Zlín, Czech Republic
| | - Kadir Ozaltin
- Centre of Polymer Systems, Tomas Bata University in Zlín, Tr. Tomase Bati 5678, 76001 Zlín, Czech Republic
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123
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A comprehensive review on electrical properties of hydroxyapatite based ceramic composites. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 101:539-563. [DOI: 10.1016/j.msec.2019.03.077] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Revised: 03/02/2019] [Accepted: 03/22/2019] [Indexed: 12/14/2022]
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124
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Gulino M, Kim D, Pané S, Santos SD, Pêgo AP. Tissue Response to Neural Implants: The Use of Model Systems Toward New Design Solutions of Implantable Microelectrodes. Front Neurosci 2019; 13:689. [PMID: 31333407 PMCID: PMC6624471 DOI: 10.3389/fnins.2019.00689] [Citation(s) in RCA: 74] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Accepted: 06/18/2019] [Indexed: 01/28/2023] Open
Abstract
The development of implantable neuroelectrodes is advancing rapidly as these tools are becoming increasingly ubiquitous in clinical practice, especially for the treatment of traumatic and neurodegenerative disorders. Electrodes have been exploited in a wide number of neural interface devices, such as deep brain stimulation, which is one of the most successful therapies with proven efficacy in the treatment of diseases like Parkinson or epilepsy. However, one of the main caveats related to the clinical application of electrodes is the nervous tissue response at the injury site, characterized by a cascade of inflammatory events, which culminate in chronic inflammation, and, in turn, result in the failure of the implant over extended periods of time. To overcome current limitations of the most widespread macroelectrode based systems, new design strategies and the development of innovative materials with superior biocompatibility characteristics are currently being investigated. This review describes the current state of the art of in vitro, ex vivo, and in vivo models available for the study of neural tissue response to implantable microelectrodes. We particularly highlight new models with increased complexity that closely mimic in vivo scenarios and that can serve as promising alternatives to animal studies for investigation of microelectrodes in neural tissues. Additionally, we also express our view on the impact of the progress in the field of neural tissue engineering on neural implant research.
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Affiliation(s)
- Maurizio Gulino
- i3S – Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- INEB – Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal
- FEUP – Faculdade de Engenharia, Universidade do Porto, Porto, Portugal
| | - Donghoon Kim
- Multi-Scale Robotics Lab (MSRL), Institute of Robotics and Intelligent Systems (IRIS), ETH Zurich, Zurich, Switzerland
| | - Salvador Pané
- Multi-Scale Robotics Lab (MSRL), Institute of Robotics and Intelligent Systems (IRIS), ETH Zurich, Zurich, Switzerland
| | - Sofia Duque Santos
- i3S – Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- INEB – Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal
| | - Ana Paula Pêgo
- i3S – Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- INEB – Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal
- FEUP – Faculdade de Engenharia, Universidade do Porto, Porto, Portugal
- ICBAS – Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
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125
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Ghasemi-Mobarakeh L, Kolahreez D, Ramakrishna S, Williams D. Key terminology in biomaterials and biocompatibility. CURRENT OPINION IN BIOMEDICAL ENGINEERING 2019. [DOI: 10.1016/j.cobme.2019.02.004] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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126
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Williams DF. Challenges With the Development of Biomaterials for Sustainable Tissue Engineering. Front Bioeng Biotechnol 2019; 7:127. [PMID: 31214584 PMCID: PMC6554598 DOI: 10.3389/fbioe.2019.00127] [Citation(s) in RCA: 136] [Impact Index Per Article: 27.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Accepted: 05/13/2019] [Indexed: 12/21/2022] Open
Abstract
The field of tissue engineering has tantalizingly offered the possibility of regenerating new tissue in order to treat a multitude of diseases and conditions within the human body. Nevertheless, in spite of significant progress with in vitro and small animal studies, progress toward realizing the clinical and commercial endpoints has been slow and many would argue that ultimate goals, especially in treating those conditions which, as yet, do not have acceptable conventional therapies, may never be reached because of flawed scientific rationale. In other words, sustainable tissue engineering may not be achievable with current approaches. One of the major factors here is the choice of biomaterial that is intended, through its use as a "scaffold," to guide the regeneration process. For many years, effective specifications for these biomaterials have not been well-articulated, and the requirements for biodegradability and prior FDA approval for use in medical devices, have dominated material selection processes. This essay argues that these considerations are not only wrong in principle but counter-productive in practice. Materials, such as many synthetic bioabsorbable polymers, which are designed to have no biological activity that could stimulate target cells to express new and appropriate tissue, will not be effective. It is argued here that a traditional 'scaffold' represents the wrong approach, and that tissue-engineering templates that are designed to replicate the niche, or microenvironment, of these target cells are much more likely to succeed.
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Affiliation(s)
- David F. Williams
- Wake Forest Institute of Regenerative Medicine, Winston-Salem, NC, United States
- Strait Access Technologies, Cape Town, South Africa
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127
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Polydimethylsiloxane and poly(ether) ether ketone functionally graded composites for biomedical applications. J Mech Behav Biomed Mater 2019; 93:130-142. [DOI: 10.1016/j.jmbbm.2019.02.012] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 01/26/2019] [Accepted: 02/11/2019] [Indexed: 11/18/2022]
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128
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Li T, Shi S, Goel S, Shen X, Xie X, Chen Z, Zhang H, Li S, Qin X, Yang H, Wu C, Liu Y. Recent advancements in mesoporous silica nanoparticles towards therapeutic applications for cancer. Acta Biomater 2019; 89:1-13. [PMID: 30797106 DOI: 10.1016/j.actbio.2019.02.031] [Citation(s) in RCA: 120] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Revised: 02/18/2019] [Accepted: 02/19/2019] [Indexed: 01/25/2023]
Abstract
Recently, drug delivery systems based on nanotechnology have received great attention in cancer therapeutics and diagnostics since they can not only improve the treatment efficacy but also reduce the side effects. Among them, mesoporous silica nanoparticles (MSNs) with large surface area, high pore volume, tunable pore size, abundant surface chemistry, and acceptable biocompatibility exhibit unique advantages and are considered as promising candidates for cancer diagnosis and therapy. In this review, we update the recent progress on MSN-based systems for cancer treatment purposes. We also discuss the drug loading mechanism of MSNs, stimuli-responsive drug release, and surface modification strategies for improving biocompatibility, and targeting functionalities. STATEMENT OF SIGNIFICANCE: The development of MSN-based delivery systems that can be used in both diagnosis and treatment of cancer has attracted tremendous interest in the past decade. MSN-based delivery systems can improve therapeutic efficacy and reduce cytotoxicity to normal tissue. To further improve the in vivo properties of MSNs and potential translation to the clinics, it is critical to design MSNs with appropriate surface engineering and desirable cancer targeting. This review is intended to provide the readers a comprehensive background of the vast literature till date on silica-based drug delivery systems, and to inspire further innovations in silica nanomedicine in the future.
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Affiliation(s)
- Tingting Li
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, PR China; Department of Cancer Systems Imaging, University of Texas MD Anderson Cancer Center, Houston, TX 77054, USA; Center for Information in Biology, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, PR China
| | - Sixiang Shi
- Department of Cancer Systems Imaging, University of Texas MD Anderson Cancer Center, Houston, TX 77054, USA
| | - Shreya Goel
- Department of Materials Science & Engineering, University of Wisconsin-Madison, Madison, WI 53705, USA
| | - Xue Shen
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, PR China
| | - Xiaoxue Xie
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, PR China
| | - Zhongyuan Chen
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, PR China
| | - Hanxi Zhang
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, PR China
| | - Shun Li
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, PR China; Center for Information in Biology, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, PR China
| | - Xiang Qin
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, PR China; Center for Information in Biology, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, PR China
| | - Hong Yang
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, PR China; Center for Information in Biology, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, PR China
| | - Chunhui Wu
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, PR China; Center for Information in Biology, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, PR China
| | - Yiyao Liu
- School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, PR China; Hospital of Chengdu University of Traditional Chinese Medicine, No.39 Shi-er-qiao Road, Chengdu 610072, Sichuan, PR China.
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129
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Sujka W, Draczynski Z, Kolesinska B, Latanska I, Jastrzebski Z, Rybak Z, Zywicka B. Influence of Porous Dressings Based on Butyric-Acetic Chitin Co-Polymer on Biological Processes In Vitro and In Vivo. MATERIALS 2019; 12:ma12060970. [PMID: 30909574 PMCID: PMC6471426 DOI: 10.3390/ma12060970] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 03/08/2019] [Accepted: 03/19/2019] [Indexed: 01/15/2023]
Abstract
In spite of intensively conducted research allowing for the development of more and more advanced wound dressing materials, there is still a need for dressings that stimulate not only reparative and regenerative processes, but also have a positive effect on infected and/or difficult-to-heal wounds. Porous dressing materials based on butyric-acetic chitin co-polyester containing 90% of butyryl and 10% of acetyl groups (BAC 90/10) can also be included in the group mentioned above. Two types of dressings were obtained by the salt leaching method, i.e. a porous sponge Medisorb R and Medisorb Ag with an antibacterial additive. The aim of the study was to evaluate biological effects of porous Medisorb R and Medisorb Ag dressings under in vitro and in vivo conditions. In an in vitro biodegradation test, no mass loss of Medisorb R dressing was observed within 14 days of incubation in physiological fluids at 37 °C. However, on the basis of the FTIR (Fourier Transform Infrared Spectroscopy) tests, surface degradation of Medisorb R dressing was observed. Additionally, the antibacterial activity of the porous Medisorb Ag dressing containing microsilver as an antibacterial additive was confirmed. The in vivo studies included inflammatory activity, skin irritation and sensitisation tests, as well an assessment of local effect after contact with subcutaneous tissue up to 6 months and skin wounds up to 21 days. In the in vivo tests, the dressings exhibited neither effects of skin irritation nor sensitisation. Under macroscopic examination, in full thickness defects of subcutaneous tissue and skin, the dressings caused wound healing with no inflammation, undergoing the most gradual biodegradation between weeks 4 and 8, and the observed differences were statistically significant. In the histological assessment, a weakened, limited inflammatory process associated with degradation of the material has been observed. The process of skin wound healing under Medisorb R dressing in the early period was accelerated compared to that observed in the control group with a gauze dressing.
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Affiliation(s)
- Witold Sujka
- Tricomed S.A., Lodz, Świetojańska Street 5/9, 93-493 Lodz, Poland.
| | - Zbigniew Draczynski
- Department of Material and Commodity Sciences and Textile Metrology, Lodz University of Technology, Żeromskiego Street 116, 90-924 Lodz, Poland.
| | - Beata Kolesinska
- Institute of Organic Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924 Lodz, Poland.
| | - Ilona Latanska
- Tricomed S.A., Lodz, Świetojańska Street 5/9, 93-493 Lodz, Poland.
| | - Zenon Jastrzebski
- National Medicines Institute, Chełmska Street 30/34, 00-725 Warsaw, Poland.
| | - Zbigniew Rybak
- Department of Experimental Surgery and Biomaterial Research, Wroclaw Medical University, Bujwida Street 44, 50-368 Wroclaw, Poland.
| | - Boguslawa Zywicka
- Department of Experimental Surgery and Biomaterial Research, Wroclaw Medical University, Bujwida Street 44, 50-368 Wroclaw, Poland.
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130
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Zhao D, Zhou R, Sun J, Li H, Jin Y. Experimental study of polymeric stent fabrication using homemade 3D printing system. POLYM ENG SCI 2019. [DOI: 10.1002/pen.25091] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Danyang Zhao
- Department of Mechanical EngineeringDalian University of Technology Dalian Liaoning 116023 China
| | - Ruiqi Zhou
- Department of Mechanical EngineeringDalian University of Technology Dalian Liaoning 116023 China
| | - Jianxing Sun
- Department of Mechanical Engineering and Materials ScienceWashington University in Saint Louis St. Louis Missouri 63130
| | - Hongxia Li
- Department of Mechanical EngineeringDalian University of Technology Dalian Liaoning 116023 China
| | - Yifei Jin
- Department of Mechanical and Aerospace EngineeringUniversity of Florida Gainesville Florida 32611
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131
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Research Progress on Conducting Polymer-Based Biomedical Applications. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9061070] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Conducting polymers (CPs) have attracted significant attention in a variety of research fields, particularly in biomedical engineering, because of the ease in controlling their morphology, their high chemical and environmental stability, and their biocompatibility, as well as their unique optical and electrical properties. In particular, the electrical properties of CPs can be simply tuned over the full range from insulator to metal via a doping process, such as chemical, electrochemical, charge injection, and photo-doping. Over the past few decades, remarkable progress has been made in biomedical research including biosensors, tissue engineering, artificial muscles, and drug delivery, as CPs have been utilized as a key component in these fields. In this article, we review CPs from the perspective of biomedical engineering. Specifically, representative biomedical applications of CPs are briefly summarized: biosensors, tissue engineering, artificial muscles, and drug delivery. The motivation for use of and the main function of CPs in these fields above are discussed. Finally, we highlight the technical and scientific challenges regarding electrical conductivity, biodegradability, hydrophilicity, and the loading capacity of biomolecules that are faced by CPs for future work. This is followed by several strategies to overcome these drawbacks.
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132
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Zhang W, Lu X, Yuan Z, Shen M, Song Y, Liu H, Deng J, Zhong X, Zhang X. Establishing an osteoimmunomodulatory coating loaded with aspirin on the surface of titanium primed with phase-transited lysozyme. Int J Nanomedicine 2019; 14:977-991. [PMID: 30787611 PMCID: PMC6368129 DOI: 10.2147/ijn.s190766] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND To improve osseointegration and enhance the success rate of implanted biomaterials, the surface modification technology of bone implants has developed rapidly. Intensive research on osteoimmunomodulation has shown that the surfaces of implants should possess favorable osteoimmunomodulation to facilitate osteogenesis. METHODS A novel, green and efficient phase-transited lysozyme (PTL) technique was used to prime titanium discs with a positive charge. In addition, sodium hyaluronate (HA) and self-assembled type I collagen containing aspirin (ASA) nanoparticles were decorated on PTL-primed Ti discs via electrostatic interaction. RESULTS The behaviors of bone marrow stromal cells (BMSCs) on the Ti disc surfaces containing ASA were analyzed in different conditioned media (CM) generated by macrophages. Additionally, the secretion of inflammation-related cytokines of macrophages on the surfaces of different Ti discs was investigated in in vitro experiments, which showed that the Ti surface containing ASA not only supported the migration, proliferation and differentiation of BMSCs but also reduced the inflammatory response of macrophages compared with Ti discs without surface modification. After implantation in vivo, the ASA-modified implant can significantly contribute to bone formation around the implant, which mirrors the evaluation in vitro. CONCLUSION This study highlights the significant effects of appropriate surface characteristics on the regulation of osteogenesis and osteoimmunomodulation around an implant. Implant modification with ASA potentially provides superior strategies for the surface modification of biomaterials.
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Affiliation(s)
- Wenxin Zhang
- School of Dentistry, Stomatological Hospital, Tianjin Medical University, Tianjin, People's Republic of China,
| | - Xin Lu
- School of Dentistry, Stomatological Hospital, Tianjin Medical University, Tianjin, People's Republic of China,
| | - Zuoying Yuan
- State Key Laboratory of Organic-Inorganic Composites, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing, People's Republic of China
| | - Minjuan Shen
- School of Dentistry, Stomatological Hospital, Tianjin Medical University, Tianjin, People's Republic of China,
| | - Yunjia Song
- School of Dentistry, Stomatological Hospital, Tianjin Medical University, Tianjin, People's Republic of China,
| | - Huanhuan Liu
- School of Dentistry, Stomatological Hospital, Tianjin Medical University, Tianjin, People's Republic of China,
| | - Jingjing Deng
- School of Dentistry, Stomatological Hospital, Tianjin Medical University, Tianjin, People's Republic of China,
| | - Xue Zhong
- School of Dentistry, Stomatological Hospital, Tianjin Medical University, Tianjin, People's Republic of China,
| | - Xu Zhang
- School of Dentistry, Stomatological Hospital, Tianjin Medical University, Tianjin, People's Republic of China,
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133
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Bhatia SK, Wadhwa P, Hong JW, Hong YG, Jeon JM, Lee ES, Yang YH. Lipase mediated functionalization of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) with ascorbic acid into an antioxidant active biomaterial. Int J Biol Macromol 2019; 123:117-123. [DOI: 10.1016/j.ijbiomac.2018.11.052] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 11/06/2018] [Accepted: 11/10/2018] [Indexed: 01/01/2023]
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134
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Arbade GK, Kumar V, Tripathi V, Menon A, Bose S, Patro TU. Emblica officinalis-loaded poly(ε-caprolactone) electrospun nanofiber scaffold as potential antibacterial and anticancer deployable patch. NEW J CHEM 2019. [DOI: 10.1039/c9nj01137d] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Emblica officinalis fruit extract has been incorporated into polymer nanofiber scaffold and the resulting scaffold showed excellent antibacterial and anti-proliferative properties.
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Affiliation(s)
| | | | | | - Aishwarya Menon
- Center for Nano Science and Engineering
- Indian Institute of Science
- Bangalore
- India
| | - Suryasarathi Bose
- Department of Materials Engineering
- Indian Institute of Science
- Bangalore
- India
| | - T. Umasankar Patro
- Department of Metallurgical and Materials Engineering
- Defence Institute of Advanced Technology
- Pune
- India
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135
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Abstract
Biomaterials play a critical role in regenerative strategies such as stem cell-based therapies and tissue engineering, aiming to replace, remodel, regenerate, or support damaged tissues and organs. The design of appropriate three-dimensional (3D) scaffolds is crucial for generating bio-inspired replacement tissues. These scaffolds are primarily composed of degradable or non-degradable biomaterials and can be employed as cells, growth factors, or drug carriers. Naturally derived and synthetic biomaterials have been widely used for these purposes, but the ideal biomaterial remains to be found. Researchers from diversified fields have attempted to design and fabricate novel biomaterials, aiming to find novel theranostic approaches for tissue engineering and regenerative medicine. Since no single biomaterial has been found to possess all the necessary characteristics for an ideal performance, over the years scientists have tried to develop composite biomaterials that complement and combine the beneficial properties of multiple materials into a superior matrix. Herein, we highlight the structural features and performance of various biomaterials and their application in regenerative medicine and for enhanced tissue engineering approaches.
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136
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Severino P, da Silva CF, Andrade LN, de Lima Oliveira D, Campos J, Souto EB. Alginate Nanoparticles for Drug Delivery and Targeting. Curr Pharm Des 2019; 25:1312-1334. [PMID: 31465282 DOI: 10.2174/1381612825666190425163424] [Citation(s) in RCA: 98] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 04/15/2019] [Indexed: 12/31/2022]
Abstract
Nanotechnology refers to the control, manipulation, study and manufacture of structures and devices at the nanometer size range. The small size, customized surface, improved solubility and multi-functionality of nanoparticles will continue to create new biomedical applications, as nanoparticles allow to dominate stability, solubility and bioavailability, as well controlled release of drugs. The type of a nanoparticle, and its related chemical, physical and morphological properties influence its interaction with living cells, as well as determine the route of clearance and possible toxic effects. This field requires cross-disciplinary research and gives opportunities to design and develop multifunctional devices, which allow the diagnosis and treatment of devastating diseases. Over the past few decades, biodegradable polymers have been studied for the fabrication of drug delivery systems. There was extensive development of biodegradable polymeric nanoparticles for drug delivery and tissue engineering, in view of their applications in controlling the release of drugs, stabilizing labile molecules from degradation and site-specific drug targeting. The primary aim is to reduce dosing frequency and prolong the therapeutic outcomes. For this purpose, inert excipients should be selected, being biopolymers, e.g. sodium alginate, commonly used in controlled drug delivery. Nanoparticles composed of alginate (known as anionic polysaccharide widely distributed in the cell walls of brown algae which, when in contact with water, forms a viscous gum) have emerged as one of the most extensively characterized biomaterials used for drug delivery and targeting a set of administration routes. Their advantages include not only the versatile physicochemical properties, which allow chemical modifications for site-specific targeting but also their biocompatibility and biodegradation profiles, as well as mucoadhesiveness. Furthermore, mechanical strength, gelation, and cell affinity can be modulated by combining alginate nanoparticles with other polymers, surface tailoring using specific targeting moieties and by chemical or physical cross-linking. However, for every physicochemical modification in the macromolecule/ nanoparticles, a new toxicological profile may be obtained. In this paper, the different aspects related to the use of alginate nanoparticles for drug delivery and targeting have been revised, as well as how their toxicological profile will determine the therapeutic outcome of the drug delivery system.
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Affiliation(s)
- Patricia Severino
- Universidade Tiradentes (Unit), Av. Murilo Dantas, 300, Farolandia, Aracaju-SE, CEP 49.032-490, Brazil
- Instituto de Tecnologia e Pesquisa, Laboratório de Nanotecnologia e Nanomedicina (LNMed) Av. Murilo Dantas, 300, Aracaju - SE, CEP 49.032-490, Brazil
| | - Classius F da Silva
- Universidade Federal de Sao Paulo, Instituto de Ciências Ambientais, Quimicas e Farmaceuticas, Departamento de Engenharia Quimica, Rua Sao Nicolau, 210, Diadema - SP, CEP 09.913-030, Brazil
| | - Luciana N Andrade
- Universidade Tiradentes (Unit), Av. Murilo Dantas, 300, Farolandia, Aracaju-SE, CEP 49.032-490, Brazil
- Instituto de Tecnologia e Pesquisa, Laboratório de Nanotecnologia e Nanomedicina (LNMed) Av. Murilo Dantas, 300, Aracaju - SE, CEP 49.032-490, Brazil
| | - Daniele de Lima Oliveira
- Universidade Tiradentes (Unit), Av. Murilo Dantas, 300, Farolandia, Aracaju-SE, CEP 49.032-490, Brazil
- Instituto de Tecnologia e Pesquisa, Laboratório de Nanotecnologia e Nanomedicina (LNMed) Av. Murilo Dantas, 300, Aracaju - SE, CEP 49.032-490, Brazil
| | - Joana Campos
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Coimbra (FFUC), Polo das Ciencias da Saude, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal
| | - Eliana B Souto
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Coimbra (FFUC), Polo das Ciencias da Saude, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal
- CEB - Centre of Biological Engineering, University of Minho, Campus de Gualtar 4710-057 Braga, Portugal
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137
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Zeraatpishe L, Mohebali A, Abdouss M. Fabrication and characterization of biocompatible pH responsive halloysite nanotubes grafted with sodium alginate for sustained release of phenytoin sodium. NEW J CHEM 2019. [DOI: 10.1039/c9nj00976k] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Schematic design of a new method for fabrication of biocompatible pH sensitive halloysite nanocomposites for controlled release of phenytoin sodium.
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Affiliation(s)
| | - Alireza Mohebali
- Department of Chemistry
- Amirkabir University of Technology
- Tehran
- Iran
| | - Majid Abdouss
- Department of Chemistry
- Amirkabir University of Technology
- Tehran
- Iran
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138
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Shin BH, Kim BH, Kim S, Lee K, Choy YB, Heo CY. Silicone breast implant modification review: overcoming capsular contracture. Biomater Res 2018; 22:37. [PMID: 30598837 PMCID: PMC6302391 DOI: 10.1186/s40824-018-0147-5] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Accepted: 12/07/2018] [Indexed: 12/25/2022] Open
Abstract
Background Silicone implants are biomaterials that are frequently used in the medical industry due to their physiological inertness and low toxicity. However, capsular contracture remains a concern in long-term transplantation. To date, several studies have been conducted to overcome this problem. This review summarizes and explores these trends. Main body First, we examined the overall foreign body response from initial inflammation to fibrosis capsule formation in detail and introduced various studies to overcome capsular contracture. Secondly, we introduced that the main research approaches are to inhibit fibrosis with anti-inflammatory drugs or antibiotics, to control the topography of the surface of silicone implants, and to administer plasma treatment. Each study examined aspects of the various mechanisms by which capsular contracture could occur, and addressed the effects of inhibiting fibrosis. Conclusion This review introduces various silicone surface modification methods to date and examines their limitations. This review will help identify new directions in inhibiting the fibrosis of silicone implants.
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Affiliation(s)
- Byung Ho Shin
- 1Department of Biomedical Engineering, Seoul National University College of Medicine, Seoul, 03080 Republic of Korea
| | - Byung Hwi Kim
- 1Department of Biomedical Engineering, Seoul National University College of Medicine, Seoul, 03080 Republic of Korea
| | - Sujin Kim
- 2Department of Transdisciplinary Studies, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, 08826 Republic of Korea
| | - Kangwon Lee
- 2Department of Transdisciplinary Studies, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, 08826 Republic of Korea.,7Advanced Institutes of Convergence Technology, Suwon, Gyeonggi-do 16229 South Korea
| | - Young Bin Choy
- 1Department of Biomedical Engineering, Seoul National University College of Medicine, Seoul, 03080 Republic of Korea.,3Interdisciplinary Program for Bioengineering, College of Engineering, Seoul National University, Seoul, 08826 Republic of Korea.,6Institute of Medical & Biological Engineering, Medical Research Center, Seoul National University, Seoul, 03080 Republic of Korea
| | - Chan Yeong Heo
- 3Interdisciplinary Program for Bioengineering, College of Engineering, Seoul National University, Seoul, 08826 Republic of Korea.,4Department of Plastic and Reconstructive Surgery, College of Medicine, Seoul National University, Seoul, 03080 Republic of Korea.,5Department of Plastic and Reconstructive Surgery, Seoul National University Bundang Hospital, Seongnam, 13620 Republic of Korea
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139
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140
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Harkin DG, Dunphy SE, Shadforth AMA, Dawson RA, Walshe J, Zakaria N. Mounting of Biomaterials for Use in Ophthalmic Cell Therapies. Cell Transplant 2018; 26:1717-1732. [PMID: 29338382 PMCID: PMC5784520 DOI: 10.1177/0963689717723638] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
When used as scaffolds for cell therapies, biomaterials often present basic handling and logistical problems for scientists and surgeons alike. The quest for an appropriate mounting device for biomaterials is therefore a significant and common problem. In this review, we provide a detailed overview of the factors to consider when choosing an appropriate mounting device including those experienced during cell culture, quality assurance, and surgery. By way of example, we draw upon our combined experience in developing epithelial cell therapies for the treatment of eye diseases. We discuss commercially available options for achieving required goals and provide a detailed analysis of 4 experimental designs developed within our respective laboratories in Australia, the United Kingdom, and Belgium.
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Affiliation(s)
- Damien G Harkin
- 1 School of Biomedical Sciences and Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia.,2 Queensland Eye Institute, South Brisbane, Queensland, Australia
| | - Siobhan E Dunphy
- 3 Division of Clinical Neuroscience, School of Pharmacy, University of Nottingham, Nottingham, United Kingdom.,4 Department of Mechanical and Manufacturing Engineering, School of Engineering, Trinity College, Dublin, Ireland
| | - Audra M A Shadforth
- 1 School of Biomedical Sciences and Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia.,2 Queensland Eye Institute, South Brisbane, Queensland, Australia
| | - Rebecca A Dawson
- 1 School of Biomedical Sciences and Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia.,2 Queensland Eye Institute, South Brisbane, Queensland, Australia
| | - Jennifer Walshe
- 2 Queensland Eye Institute, South Brisbane, Queensland, Australia
| | - Nadia Zakaria
- 5 Division of Ophthalmology, Center for Cell Therapy and Regenerative Medicine, University Hospital Antwerp, Edegem, Belgium.,6 Department of Ophthalmology, Visual Optics and Visual Rehabilitation, Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
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141
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Sridharan R, Ryan EJ, Kearney CJ, Kelly DJ, O’Brien FJ. Macrophage Polarization in Response to Collagen Scaffold Stiffness Is Dependent on Cross-Linking Agent Used To Modulate the Stiffness. ACS Biomater Sci Eng 2018; 5:544-552. [DOI: 10.1021/acsbiomaterials.8b00910] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Rukmani Sridharan
- Tissue Engineering Research Group, Department of Anatomy, Royal College of Surgeons in Ireland, Dublin 2, Ireland
- Trinity Centre for Bioengineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
- Advanced Materials Bio-Engineering Research Centre (AMBER), Trinity College Dublin & Royal College of Surgeons in Ireland, Dublin 2, Ireland
| | - Emily J. Ryan
- Tissue Engineering Research Group, Department of Anatomy, Royal College of Surgeons in Ireland, Dublin 2, Ireland
- Advanced Materials Bio-Engineering Research Centre (AMBER), Trinity College Dublin & Royal College of Surgeons in Ireland, Dublin 2, Ireland
| | - Cathal J. Kearney
- Tissue Engineering Research Group, Department of Anatomy, Royal College of Surgeons in Ireland, Dublin 2, Ireland
- Trinity Centre for Bioengineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
- Advanced Materials Bio-Engineering Research Centre (AMBER), Trinity College Dublin & Royal College of Surgeons in Ireland, Dublin 2, Ireland
| | - Daniel J. Kelly
- Tissue Engineering Research Group, Department of Anatomy, Royal College of Surgeons in Ireland, Dublin 2, Ireland
- Trinity Centre for Bioengineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
- Advanced Materials Bio-Engineering Research Centre (AMBER), Trinity College Dublin & Royal College of Surgeons in Ireland, Dublin 2, Ireland
| | - Fergal J. O’Brien
- Tissue Engineering Research Group, Department of Anatomy, Royal College of Surgeons in Ireland, Dublin 2, Ireland
- Trinity Centre for Bioengineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
- Advanced Materials Bio-Engineering Research Centre (AMBER), Trinity College Dublin & Royal College of Surgeons in Ireland, Dublin 2, Ireland
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142
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Groll J, Burdick JA, Cho DW, Derby B, Gelinsky M, Heilshorn SC, Jüngst T, Malda J, Mironov VA, Nakayama K, Ovsianikov A, Sun W, Takeuchi S, Yoo JJ, Woodfield TBF. A definition of bioinks and their distinction from biomaterial inks. Biofabrication 2018; 11:013001. [PMID: 30468151 DOI: 10.1088/1758-5090/aaec52] [Citation(s) in RCA: 351] [Impact Index Per Article: 58.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Biofabrication aims to fabricate biologically functional products through bioprinting or bioassembly (Groll et al 2016 Biofabrication 8 013001). In biofabrication processes, cells are positioned at defined coordinates in three-dimensional space using automated and computer controlled techniques (Moroni et al 2018 Trends Biotechnol. 36 384-402), usually with the aid of biomaterials that are either (i) directly processed with the cells as suspensions/dispersions, (ii) deposited simultaneously in a separate printing process, or (iii) used as a transient support material. Materials that are suited for biofabrication are often referred to as bioinks and have become an important area of research within the field. In view of this special issue on bioinks, we aim herein to briefly summarize the historic evolution of this term within the field of biofabrication. Furthermore, we propose a simple but general definition of bioinks, and clarify its distinction from biomaterial inks.
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Affiliation(s)
- J Groll
- Department of Functional Materials in Medicine and Dentistry and Bavarian Polymer Institute, University of Würzburg, D-97070 Würzburg, Germany
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143
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Argentati C, Morena F, Bazzucchi M, Armentano I, Emiliani C, Martino S. Adipose Stem Cell Translational Applications: From Bench-to-Bedside. Int J Mol Sci 2018; 19:E3475. [PMID: 30400641 PMCID: PMC6275042 DOI: 10.3390/ijms19113475] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 10/22/2018] [Accepted: 11/01/2018] [Indexed: 02/08/2023] Open
Abstract
During the last five years, there has been a significantly increasing interest in adult adipose stem cells (ASCs) as a suitable tool for translational medicine applications. The abundant and renewable source of ASCs and the relatively simple procedure for cell isolation are only some of the reasons for this success. Here, we document the advances in the biology and in the innovative biotechnological applications of ASCs. We discuss how the multipotential property boosts ASCs toward mesenchymal and non-mesenchymal differentiation cell lineages and how their character is maintained even if they are combined with gene delivery systems and/or biomaterials, both in vitro and in vivo.
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Affiliation(s)
- Chiara Argentati
- Department of Chemistry, Biology and Biotechnologies, University of Perugia, Via del Giochetto, 06126 Perugia, Italy.
| | - Francesco Morena
- Department of Chemistry, Biology and Biotechnologies, University of Perugia, Via del Giochetto, 06126 Perugia, Italy.
| | - Martina Bazzucchi
- Department of Chemistry, Biology and Biotechnologies, University of Perugia, Via del Giochetto, 06126 Perugia, Italy.
| | - Ilaria Armentano
- Department of Ecological and Biological Sciences, Tuscia University Largo dell'Università, snc, 01100 Viterbo, Italy.
| | - Carla Emiliani
- Department of Chemistry, Biology and Biotechnologies, University of Perugia, Via del Giochetto, 06126 Perugia, Italy.
- CEMIN, Center of Excellence on Nanostructured Innovative Materials, Via del Giochetto, 06126 Perugia, Italy.
| | - Sabata Martino
- Department of Chemistry, Biology and Biotechnologies, University of Perugia, Via del Giochetto, 06126 Perugia, Italy.
- CEMIN, Center of Excellence on Nanostructured Innovative Materials, Via del Giochetto, 06126 Perugia, Italy.
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144
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Alcaraz JP, Cinquin P, Martin DK. Tackling the Concept of Symbiotic Implantable Medical Devices with Nanobiotechnologies. Biotechnol J 2018; 13:e1800102. [PMID: 30367543 DOI: 10.1002/biot.201800102] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Revised: 09/17/2018] [Indexed: 12/21/2022]
Abstract
This review takes an approach to implanted medical devices that considers whether the intention of the implanted device is to have any communication of energy or materials with the body. The first part describes some specific examples of three different classes of implants, analyzed with regards to the type of signal sent to cells. Through several examples, the authors describe that a one way signaling to the body leads to encapsulation or degradation. In most cases, those phenomena do not lead to major problems. However, encapsulation or degradation are critical for new kinds of medical devices capable of duplex communication, which are defined in this review as symbiotic devices. The concept the authors propose is that implanted medical devices that need to be symbiotic with the body also need to be designed with an intended duplex communication of energy and materials with the body. This extends the definition of a biocompatible system to one that requires stable exchange of materials between the implanted device and the body. Having this novel concept in mind will guide research in a new field between medical implant and regenerative medicine to create actual symbiotic devices.
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Affiliation(s)
- Jean-Pierre Alcaraz
- Univverity Grenoble Alpes, CNRS, Grenoble INP, TIMC-IMAG, F-38000 Grenoble, France.,SyNaBi, Pavillon Taillefer, Domaine de la Merci, La Tronche 38706, Grenoble, France
| | - Philippe Cinquin
- Univverity Grenoble Alpes, CNRS, Grenoble INP, TIMC-IMAG, F-38000 Grenoble, France.,SyNaBi, Pavillon Taillefer, Domaine de la Merci, La Tronche 38706, Grenoble, France
| | - Donald K Martin
- Univverity Grenoble Alpes, CNRS, Grenoble INP, TIMC-IMAG, F-38000 Grenoble, France.,SyNaBi, Pavillon Taillefer, Domaine de la Merci, La Tronche 38706, Grenoble, France
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Stiffness memory nanohybrid scaffolds generated by indirect 3D printing for biologically responsive soft implants. Acta Biomater 2018; 80:188-202. [PMID: 30223094 DOI: 10.1016/j.actbio.2018.09.016] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 09/13/2018] [Accepted: 09/13/2018] [Indexed: 11/20/2022]
Abstract
Cell and tissue stiffness is an important biomechanical signalling parameter for dynamic biological processes; responsive polymeric materials conferring responsive functionality are therefore appealing for in vivo implants. We have developed thermoresponsive poly(urea-urethane) nanohybrid scaffolds with 'stiffness memory' through a versatile 3D printing-guided thermally induced phase separation (3D-TIPS) technique. 3D-TIPS, a combination of 3D printing with phase separation, allows uniform phase-separation and phase transition of the polymer solution at a large interface of network within the printed sacrificial preform, leading to the creation of full-scale scaffolds with bespoke anatomical complex geometry. A wide range of hyperelastic mechanical properties of the soft elastomer scaffolds with interconnected pores at multi-scale, controlled porosity and crystallinity have been manufactured, not previously achievable via direct printing techniques or phase-separation alone. Semi-crystalline polymeric reverse self-assembly to a ground-stated quasi-random nanophase structure, throughout a hierarchical structure of internal pores, contributes to gradual stiffness relaxation during in vitro cell culture with minimal changes to shape. This 'stiffness memory' provides initial mechanical support to surrounding tissues before gradually softening to a better mechanical match, raising hopes for personalized and biologically responsive soft tissue implants which promote human fibroblast cells growth as model and potential scaffold tissue integration. STATEMENT OF SIGNIFICANCE: Biological processes are dynamic in nature, however current medical implants are often stronger and stiffer than the surrounding tissue, with little adaptability in response to biological and physical stimuli. This work has contributed to the development of a range of thermoresponsive nanohybrid elastomer scaffolds, with tuneable stiffness and hierarchically interconnected porous structure, manufactured by a versatile indirect 3D printing technique. For the first time, stiffness memory of the scaffold was observed to be driven by phase transition and a reverse self-assembly from a semicrystalline phase to a quasi-random nanostructured rubber phase. Early insight into cell response during the stiffness relaxation of the scaffolds in vitro holds promise for personalized biologically responsive soft implants.
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146
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A Novel Approach for Assessing the Fatigue Behavior of PEEK in a Physiologically Relevant Environment. MATERIALS 2018; 11:ma11101923. [PMID: 30308932 PMCID: PMC6213617 DOI: 10.3390/ma11101923] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Revised: 09/27/2018] [Accepted: 10/06/2018] [Indexed: 11/17/2022]
Abstract
In recent years, the need of surgical procedures has continuously increased and, therefore, researchers and clinicians are broadly focusing on the development of new biocompatible materials. Among them, polyetheretherketone (PEEK) has gained wide interest in load-bearing applications due to its yielding behaviour and its superior corrosion resistance. To assure its reliability in these applications where notches and other stress concentrators weaken implants resistance, a design tool for assessing its tensile and fatigue behaviour in the presence of geometrical discontinuities is highly claimed. Herein, a new fatigue design method based on a local approach is proposed for PEEK implant, and the results are compared with those obtained using the two main biomaterial design approaches available in literature, i.e., the theory of critical distances (TCD) and the notch stress intensity factor (NSIF) approach. To this aim, previously published datasets of PEEK-notched specimens are used, and the proposed method is reported to provide more accurate results and to be robust for different notch geometries.
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147
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Xu T, Zhang J, Zhu Y, Zhao W, Pan C, Ma H, Zhang L. A poly(hydroxyethyl methacrylate)-Ag nanoparticle porous hydrogel for simultaneous in vivo prevention of the foreign-body reaction and bacterial infection. NANOTECHNOLOGY 2018; 29:395101. [PMID: 29989569 DOI: 10.1088/1361-6528/aad257] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The use of implants or indwelling medical devices has greatly enhanced the quality and efficacy of health care. However, foreign-body reactions (FBRs) and infections can lead to potential failure or removal of the devices, or increased morbidity and mortality of patients. Herein, we develop a silver nanoparticle (AgNP) loaded poly(hydroxyethyl methacrylate) hydrogel with spherical, interconnected 40 μm pores. The resulting hydrogels displayed good antibacterial properties regarding both gram positive bacteria (Staphylococcus aureus) and gram negative bacteria (Escherichia coli (E. coli)) in vitro and were highly efficient at inhibiting bacterial cell growth. Moreover, they exhibited an in vivo resistance to FBRs by reducing the immune responses, and completely prevented the formation of collagen capsules. Finally, in vivo studies of the E. coli infected mouse model demonstrated that the AgNP loaded porous hydrogels were highly efficient at resisting the bacterial FBRs and infections, while they promoted cell mitigation and infiltration. Findings from this work suggest that AgNP loaded porous hydrogels hold promise in various biomedical applications including in the new generation of implantable biomedical devices and tissue engineering scaffolds.
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Affiliation(s)
- Tong Xu
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, People's Republic of China. Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin 300072, People's Republic of China. Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin, 300072, People's Republic of China
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148
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da Silva Fernandes R, de Moura MR, Glenn GM, Aouada FA. Thermal, microstructural, and spectroscopic analysis of Ca2+ alginate/clay nanocomposite hydrogel beads. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.06.005] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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149
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150
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Advances and Challenges of Biodegradable Implant Materials with a Focus on Magnesium-Alloys and Bacterial Infections. METALS 2018. [DOI: 10.3390/met8070532] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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