1
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Zhou J, Liu Y, Liu X, Wan J, Zuo S, Pan T, Liu Y, Sun F, Gao M, Yu X, Zhou W, Xu J, Zhou Z, Wang S. Hyaluronic acid-based dual network hydrogel with sustained release of platelet-rich plasma as a diabetic wound dressing. Carbohydr Polym 2023; 314:120924. [PMID: 37173024 DOI: 10.1016/j.carbpol.2023.120924] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 04/12/2023] [Accepted: 04/13/2023] [Indexed: 05/15/2023]
Abstract
In recent years, the incidence of diabetic skin ulcers has increased. Because of its extremely high disability and fatality rate, it brings a huge burden to patients and society. Platelet-rich plasma (PRP) contains a large number of biologically active substances and is of great clinical value in the treatment of various wounds. However, its weak mechanical properties and the consequent abrupt release of active substances greatly limit its clinical application and therapeutic efficacy. Here, we chose hyaluronic acid (HA) and ε-polylysine (ε-PLL) to prepare a hydrogel with the ability to prevent wound infection and promote tissue regeneration. At the same time, using the macropore barrier effect of the lyophilized hydrogel scaffold, platelets in PRP are activated with calcium gluconate in the macropores of the scaffold carrier, and fibrinogen from PRP is converted in a fibrin-packed network forming a gel that interpenetrates the hydrogel scaffold carrier, thus creating a double network hydrogel with slow-release of growth factors from degranulated platelets. The hydrogel not only showed better performance in functional assays in vitro, but also showed more superior therapeutic effects in reducing inflammatory response, promoting collagen deposition, facilitating re-epithelialization and angiogenesis in the treatment of full skin defects in diabetic rats.
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Affiliation(s)
- Jie Zhou
- Key Laboratory of Bioactive Materials for Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Yufei Liu
- Key Laboratory of Bioactive Materials for Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Xiangsheng Liu
- Key Laboratory of Bioactive Materials for Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Jinpeng Wan
- Key Laboratory of Bioactive Materials for Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Shuyu Zuo
- Key Laboratory of Bioactive Materials for Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Tengwu Pan
- Key Laboratory of Bioactive Materials for Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Yanyu Liu
- Key Laboratory of Bioactive Materials for Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Feifan Sun
- Key Laboratory of Bioactive Materials for Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Minli Gao
- Key Laboratory of Bioactive Materials for Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Xinyi Yu
- Key Laboratory of Bioactive Materials for Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Weihong Zhou
- Key Laboratory of Bioactive Materials for Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Jun Xu
- Tianjin Medical University Chu Hisen-I Memorial Hospital, Tianjin 300134, China.
| | - Zhenyu Zhou
- Department of Orthopedics, The 960th Hospital of the PLA Joint Logistics Support Force (Previous name: General Hospital of Jinan Military Command), Jinan 250031, China.
| | - Shufang Wang
- Key Laboratory of Bioactive Materials for Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China.
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2
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Santos NE, Mendes JC, Braga SS. The Gemstone Cyborg: How Diamond Films Are Creating New Platforms for Cell Regeneration and Biointerfacing. Molecules 2023; 28:molecules28041626. [PMID: 36838614 PMCID: PMC9968187 DOI: 10.3390/molecules28041626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 01/26/2023] [Accepted: 01/31/2023] [Indexed: 02/11/2023] Open
Abstract
Diamond is a promising material for the biomedical field, mainly due to its set of characteristics such as biocompatibility, strength, and electrical conductivity. Diamond can be synthesised in the laboratory by different methods, is available in the form of plates or films deposited on foreign substrates, and its morphology varies from microcrystalline diamond to ultrananocrystalline diamond. In this review, we summarise some of the most relevant studies regarding the adhesion of cells onto diamond surfaces, the consequent cell growth, and, in some very interesting cases, the differentiation of cells into neurons and oligodendrocytes. We discuss how different morphologies can affect cell adhesion and how surface termination can influence the surface hydrophilicity and consequent attachment of adherent proteins. At the end of the review, we present a brief perspective on how the results from cell adhesion and biocompatibility can make way for the use of diamond as biointerface.
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Affiliation(s)
- Nádia E. Santos
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
- Instituto de Telecomunicações and University of Aveiro, 3810-193 Aveiro, Portugal
| | - Joana C. Mendes
- Instituto de Telecomunicações and University of Aveiro, 3810-193 Aveiro, Portugal
- Correspondence: (J.C.M.); (S.S.B.)
| | - Susana Santos Braga
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
- Correspondence: (J.C.M.); (S.S.B.)
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3
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Zalieckas J, Mondragon IR, Pobedinskas P, Kristoffersen AS, Mohamed-Ahmed S, Gjerde C, Høl PJ, Hallan G, Furnes ON, Cimpan MR, Haenen K, Holst B, Greve MM. Polycrystalline Diamond Coating on Orthopedic Implants: Realization and Role of Surface Topology and Chemistry in Adsorption of Proteins and Cell Proliferation. ACS APPLIED MATERIALS & INTERFACES 2022; 14:44933-44946. [PMID: 36135965 PMCID: PMC9542704 DOI: 10.1021/acsami.2c10121] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 09/14/2022] [Indexed: 06/16/2023]
Abstract
Polycrystalline diamond has the potential to improve the osseointegration of orthopedic implants compared to conventional materials such as titanium. However, despite the excellent biocompatibility and superior mechanical properties, the major challenge of using diamond for implants, such as those used for hip arthroplasty, is the limitation of microwave plasma chemical vapor deposition (CVD) techniques to synthesize diamond on complex-shaped objects. Here, for the first time, we demonstrate diamond growth on titanium acetabular shells using the surface wave plasma CVD method. Polycrystalline diamond coatings were synthesized at low temperatures (∼400 °C) on three types of acetabular shells with different surface structures and porosities. We achieved the growth of diamond on highly porous surfaces designed to mimic the structure of the trabecular bone and improve osseointegration. Biocompatibility was investigated on nanocrystalline diamond (NCD) and ultrananocrystalline diamond (UNCD) coatings terminated either with hydrogen or oxygen. To understand the role of diamond surface topology and chemistry in the attachment and proliferation of mammalian cells, we investigated the adsorption of extracellular matrix proteins and monitored the metabolic activity of fibroblasts, osteoblasts, and bone-marrow-derived mesenchymal stem cells (MSCs). The interaction of bovine serum albumin and type I collagen with the diamond surfaces was investigated by confocal fluorescence lifetime imaging microscopy (FLIM). We found that the proliferation of osteogenic cells was better on hydrogen-terminated UNCD than on the oxygen-terminated counterpart. These findings correlated with the behavior of collagen on diamond substrates observed by FLIM. Hydrogen-terminated UNCD provided better adhesion and proliferation of osteogenic cells, compared to titanium, while the growth of fibroblasts was poorest on hydrogen-terminated NCD and MSCs behaved similarly on all tested surfaces. These results open new opportunities for application of diamond coatings on orthopedic implants to further improve bone fixation and osseointegration.
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Affiliation(s)
- Justas Zalieckas
- Department
of Physics and Technology, University of
Bergen, Allegaten 55, 5007 Bergen, Norway
| | - Ivan R. Mondragon
- Department
for Clinical Dentistry, University of Bergen, Årstadveien 19, 5009 Bergen, Norway
| | - Paulius Pobedinskas
- Institute
for Materials Research (IMO), Hasselt University, Wetenschapspark 1, 3590 Diepenbeek, Belgium
- IMOMEC,
Interuniversity MicroElectronics Center (IMEC) vzw, Wetenschapspark 1, 3590 Diepenbeek, Belgium
| | - Arne S. Kristoffersen
- Department
of Physics and Technology, University of
Bergen, Allegaten 55, 5007 Bergen, Norway
| | - Samih Mohamed-Ahmed
- Department
for Clinical Dentistry, University of Bergen, Årstadveien 19, 5009 Bergen, Norway
| | - Cecilie Gjerde
- Department
for Clinical Dentistry, University of Bergen, Årstadveien 19, 5009 Bergen, Norway
| | - Paul J. Høl
- Department
of Orthopaedic Surgery, Haukeland University
Hospital, Jonas Lies vei 65, 5021 Bergen, Norway
- Department
of Clinical Medicine, University of Bergen, Jonas Lies vei 87, 5021 Bergen, Norway
| | - Geir Hallan
- Department
of Orthopaedic Surgery, Haukeland University
Hospital, Jonas Lies vei 65, 5021 Bergen, Norway
- Department
of Clinical Medicine, University of Bergen, Jonas Lies vei 87, 5021 Bergen, Norway
| | - Ove N. Furnes
- Department
of Orthopaedic Surgery, Haukeland University
Hospital, Jonas Lies vei 65, 5021 Bergen, Norway
- Department
of Clinical Medicine, University of Bergen, Jonas Lies vei 87, 5021 Bergen, Norway
| | - Mihaela Roxana Cimpan
- Department
for Clinical Dentistry, University of Bergen, Årstadveien 19, 5009 Bergen, Norway
| | - Ken Haenen
- Institute
for Materials Research (IMO), Hasselt University, Wetenschapspark 1, 3590 Diepenbeek, Belgium
- IMOMEC,
Interuniversity MicroElectronics Center (IMEC) vzw, Wetenschapspark 1, 3590 Diepenbeek, Belgium
| | - Bodil Holst
- Department
of Physics and Technology, University of
Bergen, Allegaten 55, 5007 Bergen, Norway
| | - Martin M. Greve
- Department
of Physics and Technology, University of
Bergen, Allegaten 55, 5007 Bergen, Norway
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4
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Skjöldebrand C, Tipper JL, Hatto P, Bryant M, Hall RM, Persson C. Current status and future potential of wear-resistant coatings and articulating surfaces for hip and knee implants. Mater Today Bio 2022; 15:100270. [PMID: 35601891 PMCID: PMC9118168 DOI: 10.1016/j.mtbio.2022.100270] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 04/09/2022] [Accepted: 04/24/2022] [Indexed: 10/29/2022] Open
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5
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Sosnowska M, Kutwin M, Strojny B, Wierzbicki M, Cysewski D, Szczepaniak J, Ficek M, Koczoń P, Jaworski S, Chwalibog A, Sawosz E. Diamond Nanofilm Normalizes Proliferation and Metabolism in Liver Cancer Cells. Nanotechnol Sci Appl 2021; 14:115-137. [PMID: 34511890 PMCID: PMC8420805 DOI: 10.2147/nsa.s322766] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 07/28/2021] [Indexed: 01/10/2023] Open
Abstract
Purpose Surgical resection of hepatocellular carcinoma can be associated with recurrence resulting from the degeneration of residual volume of the liver. The objective was to assess the possibility of using a biocompatible nanofilm, made of a colloid of diamond nanoparticles (nfND), to fill the side after tumour resection and optimize its contact with proliferating liver cells, minimizing their cancerous transformation. Methods HepG2 and C3A liver cancer cells and HS-5 non-cancer cells were used. An aqueous colloid of diamond nanoparticles, which covered the cell culture plate, was used to create the nanofilm. The roughness of the resulting nanofilm was measured by atomic force microscopy. Mitochondrial activity and cell proliferation were measured by XTT and BrdU assays. Cell morphology and a scratch test were used to evaluate the invasiveness of cells. Flow cytometry determined the number of cells within the cell cycle. Protein expression in was measured by mass spectrometry. Results The nfND created a surface with increased roughness and exposed oxygen groups compared with a standard plate. All cell lines were prone to settling on the nanofilm, but cancer cells formed more relaxed clusters. The surface compatibility was dependent on the cell type and decreased in the order C3A >HepG2 >HS-5. The invasion was reduced in cancer lines with the greatest effect on the C3A line, reducing proliferation and increasing the G2/M cell population. Among the proteins with altered expression, membrane and nuclear proteins dominated. Conclusion In vitro studies demonstrated the antiproliferative properties of nfND against C3A liver cancer cells. At the same time, the need to personalize potential therapy was indicated due to the differential protein synthetic responses in C3A vs HepG2 cells. We documented that nfND is a source of signals capable of normalizing the expression of many intracellular proteins involved in the transformation to non-cancerous cells.
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Affiliation(s)
- Malwina Sosnowska
- Department of Nanobiotechnology, Institute of Biology, Warsaw University of Life Sciences, Warsaw, Poland
| | - Marta Kutwin
- Department of Nanobiotechnology, Institute of Biology, Warsaw University of Life Sciences, Warsaw, Poland
| | - Barbara Strojny
- Department of Nanobiotechnology, Institute of Biology, Warsaw University of Life Sciences, Warsaw, Poland
| | - Mateusz Wierzbicki
- Department of Nanobiotechnology, Institute of Biology, Warsaw University of Life Sciences, Warsaw, Poland
| | - Dominik Cysewski
- Spectrometry Laboratory, Institute of Biochemistry and Biophysics, Polish Academy of Science, Warsaw, Poland
| | - Jarosław Szczepaniak
- Department of Nanobiotechnology, Institute of Biology, Warsaw University of Life Sciences, Warsaw, Poland
| | - Mateusz Ficek
- Department of Metrology and Optoelectronics, Gdansk University of Technology, Gdansk, Poland
| | - Piotr Koczoń
- Department of Chemistry, Institute of Food Sciences, Warsaw University of Life Sciences, Warsaw, Poland
| | - Sławomir Jaworski
- Department of Nanobiotechnology, Institute of Biology, Warsaw University of Life Sciences, Warsaw, Poland
| | - André Chwalibog
- Department of Veterinary and Animal, Sciences, University of Copenhagen, Frederiksberg, Denmark
| | - Ewa Sawosz
- Department of Nanobiotechnology, Institute of Biology, Warsaw University of Life Sciences, Warsaw, Poland
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6
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Fong JSL, Booth MA, Rifai A, Fox K, Gelmi A. Diamond in the Rough: Toward Improved Materials for the Bone-Implant Interface. Adv Healthc Mater 2021; 10:e2100007. [PMID: 34170623 DOI: 10.1002/adhm.202100007] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Revised: 05/17/2021] [Indexed: 01/16/2023]
Abstract
The ability of an orthopedic implant to integrate successfully with the surrounding bone tissue is imperative for optimal patient outcomes. Here, the recent advances and future prospects for diamond-based coatings of conventional osteo-implant materials (primarily titanium) are explored. The ability of these diamond coatings to enhance integration into existing bone, improved implant mechanical properties, facilitate surface chemical functionalization, and provide anti-microbial properties are discussed in context of orthopedic implants. These diamond-based materials may have the additional benefit of providing an osteo-inductive effect, enabling better integration into existing bone via stem cell recruitment and bone regeneration. Current and timely research is highlighted to support the discussion and suggestions in further improving implant integration via an osseoinductive effect from the diamond composite materials.
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Affiliation(s)
- Jessica S L Fong
- School of Science, RMIT University, Melbourne, VIC, 3000, Australia
| | - Marsilea A Booth
- School of Engineering, RMIT University, Melbourne, VIC, 3000, Australia
| | - Aaqil Rifai
- School of Engineering, RMIT University, Melbourne, VIC, 3000, Australia
- School of Medicine, Deakin University, Waurn Ponds, VIC, 3216, Australia
| | - Kate Fox
- School of Engineering, RMIT University, Melbourne, VIC, 3000, Australia
| | - Amy Gelmi
- School of Science, RMIT University, Melbourne, VIC, 3000, Australia
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7
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Abstract
The paper briefly describes major thermal spray techniques used to spray functionally graded coatings such as atmospheric plasma spraying, high velocity oxy-fuel spraying, suspension and solution precursor plasma spraying, and finally low and high pressure cold gas spray method. The examples of combined spray processes as well as some examples of post spray treatment including laser and high temperature treatments or mechanical one, are described. Then, the solid and liquid feedstocks used to spray and their properties are shortly discussed. The reviewed properties of functional coatings include: (i) mechanical (adhesion, toughness, hardness); (ii) physical (porosity, thermal conductivity and diffusivity, thermal expansion, photo-catalytic activity), and; (iii) bioactivity and simulated body fluid (SBF) corrosion. These properties are useful in present applications of functionally graded coatings as thermal barriers, the bioactive coatings in prostheses, photo-catalytic coatings in water treatment, coatings used in printing industry (anilox and corona rolls). Finally, some of the future possible fields of functional thermal sprayed coatings applications are discussed, e.g., to coat polymer substrates or to use the cheap technology of low pressure cold gas spray method instead of expensive technology of vacuum plasma spraying to obtain bond coatings.
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8
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Potentials of sandwich-like chitosan/polycaprolactone/gelatin scaffolds for guided tissue regeneration membrane. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 109:110618. [DOI: 10.1016/j.msec.2019.110618] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2019] [Revised: 11/29/2019] [Accepted: 12/30/2019] [Indexed: 12/13/2022]
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9
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Rastogi SK, Kalmykov A, Johnson N, Cohen-Karni T. Bioelectronics with nanocarbons. J Mater Chem B 2018; 6:7159-7178. [PMID: 32254631 DOI: 10.1039/c8tb01600c] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Characterizing the electrical activity of cardiomyocytes and neurons is crucial in understanding the complex processes in the heart and brain tissues, both in healthy and diseased states. Micro- and nanotechnologies have significantly improved the electrophysiological investigation of cellular networks. Carbon-based nanomaterials or nanocarbons, such as carbon nanotubes (CNTs), nanodiamonds (NDs) and graphene are promising building blocks for bioelectronics platforms owing to their outstanding chemical and physical properties. In this review, we discuss the various bioelectronics applications of nanocarbons and their derivatives. Furthermore, we touch upon the challenges that remain in the field and describe the emergence of carbon-based hybrid-nanomaterials that will potentially address those limitations, thus improving the capabilities to investigate the electrophysiology of excitable cells, both as a network and at the single cell level.
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Affiliation(s)
- Sahil Kumar Rastogi
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA.
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10
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Tian Z, Huang W, Xu B, Li X, Mei Y. Anisotropic Rolling and Controlled Chirality of Nanocrystalline Diamond Nanomembranes toward Biomimetic Helical Frameworks. NANO LETTERS 2018; 18:3688-3694. [PMID: 29799209 DOI: 10.1021/acs.nanolett.8b00828] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Future advances in materials will be aided by improved dimensional control in fabrication of 3D hierarchical structures. Self-rolling technology provides additional degrees of freedom in 3D design by enabling an arbitrary rolling direction with controllable curvature. Here, we demonstrate that deterministic helical structures with variable rolling directions can be formed through releasing a strained nanomembrane patterned in a "utility knife" shape. The asymmetry of the membrane shape provides anisotropic driving force generated by the disparity between the etching rates along different sides in this asymmetric shape. A transient finite element method (FEM) model of diagonal rolling is established to analyze the relationships among geometries, elastic properties, and boundary conditions. On the basis of this model, a diamond-based helical framework consisting of two or three helical segments has been fabricated to mimic the shapes of natural plants. Further experiment has been done to extend this approach to other materials and material combinations, such as MoSe2/Cr, Cr/Pt, and VO2. To demonstrate the possible application accessible by our technology to new fields, VO2-based helical microscale actuation has been demonstrated with photocontrollable bending in a selected region, as well as morphable and recognizable helix. This study offers a new way to construct helical mesostructures that combine special properties of the advanced materials, thus possess novel features and potential applications.
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Affiliation(s)
- Ziao Tian
- Department of Materials Science, State Key Laboratory of ASIC and Systems , Fudan University , Shanghai 200433 , People's Republic of China
| | - Wen Huang
- Department of Electrical and Computer Engineering, Micro and Nanotechnology Laboratory , University of Illinois Urbana-Champaign , 208 N. Wright Street , Urbana , Illinois 61801 , United States
| | - Borui Xu
- Department of Materials Science, State Key Laboratory of ASIC and Systems , Fudan University , Shanghai 200433 , People's Republic of China
| | - Xiuling Li
- Department of Electrical and Computer Engineering, Micro and Nanotechnology Laboratory , University of Illinois Urbana-Champaign , 208 N. Wright Street , Urbana , Illinois 61801 , United States
| | - YongFeng Mei
- Department of Materials Science, State Key Laboratory of ASIC and Systems , Fudan University , Shanghai 200433 , People's Republic of China
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11
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Yang J, Zhang Y. Nanocrystalline Diamond Films Grown by Microwave Plasma Chemical Vapor Deposition and Its Biocompatible Property. ACTA ACUST UNITED AC 2018. [DOI: 10.4236/ampc.2018.84011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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12
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Nistor PA, May PW. Diamond thin films: giving biomedical applications a new shine. J R Soc Interface 2017; 14:20170382. [PMID: 28931637 PMCID: PMC5636274 DOI: 10.1098/rsif.2017.0382] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Accepted: 08/29/2017] [Indexed: 01/10/2023] Open
Abstract
Progress made in the last two decades in chemical vapour deposition technology has enabled the production of inexpensive, high-quality coatings made from diamond to become a scientific and commercial reality. Two properties of diamond make it a highly desirable candidate material for biomedical applications: first, it is bioinert, meaning that there is minimal immune response when diamond is implanted into the body, and second, its electrical conductivity can be altered in a controlled manner, from insulating to near-metallic. In vitro, diamond can be used as a substrate upon which a range of biological cells can be cultured. In vivo, diamond thin films have been proposed as coatings for implants and prostheses. Here, we review a large body of data regarding the use of diamond substrates for in vitro cell culture. We also detail more recent work exploring diamond-coated implants with the main targets being bone and neural tissue. We conclude that diamond emerges as one of the major new biomaterials of the twenty-first century that could shape the way medical treatment will be performed, especially when invasive procedures are required.
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Affiliation(s)
- P A Nistor
- Regenerative Medicine Laboratory, University of Bristol, Bristol BS8 1TD, UK
| | - P W May
- School of Chemistry, University of Bristol, Bristol BS8 1TS, UK
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13
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Liang Y, Liu DG, Bai WQ, Tu JP. Investigation of silicon carbon nitride nanocomposite films as a wear resistant layer in vitro and in vivo for joint replacement applications. Colloids Surf B Biointerfaces 2017; 153:41-51. [PMID: 28213286 DOI: 10.1016/j.colsurfb.2017.02.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Revised: 02/04/2017] [Accepted: 02/08/2017] [Indexed: 01/27/2023]
Abstract
Silicon-contained CNx nanocomposite films were prepared using the ion beam assisted magnetron sputtering under different nitrogen gas pressure. With increase of the nitrogen pressure, silicon and nitrogen content of the CNx films drastically increase, and is saturated as the PN2 reach about 40%. Surface roughness and the contact angle are increase, while the friction coefficient decreased. The CNx film with 5.7at.% Si content possess the lowest friction coefficient of only 0.07, and exhibited the best tribological properties. The impact of CNx films with different silicon content on the growth and the activation of osteoblasts were compared to that of Ti6Al4V. The incorporation of silicon in the CNx film also showed an increase cell adhesion. Bonding structure and surface energy were determined to be the factors contributing to the improved biocompatibility. Macrophages attached to 5.7at.% Si contained CNx films down regulated their production of cytokines and chemokines. Moreover, employed with Si contained CNx coated joint replacements, which were implanted subcutaneously into Sprague-Dawley mice for up to 36days, the tissue reaction and capsule formation was significantly decreased compared to that of Ti6Al4V. A mouse implantation study demonstrated the excellent in vivo biocompatibility and functional reliability of wear resist layer for joint replacements with a Si doped a-CNx coating for 36days.
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Affiliation(s)
- Y Liang
- Center of Medical Device Adverse Events Monitoring of Anhui, Center for Adverse Drug Reaction Monitoring of Anhui, Hefei 230031, China
| | - D G Liu
- Institute of Industry and Equipment Technology, School of Materials Science and Engineering, Hefei University of Technology, Hefei 230099, China; Center of Composite Material and Surface Treatment, China Electronic Technology Group Corporation No. 38 Research Institute (CETC 38), Hefei 230088, China.
| | - W Q Bai
- State Key Laboratory of Silicon Materials and Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - J P Tu
- State Key Laboratory of Silicon Materials and Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China.
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14
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Alcaide M, Papaioannou S, Taylor A, Fekete L, Gurevich L, Zachar V, Pennisi CP. Resistance to protein adsorption and adhesion of fibroblasts on nanocrystalline diamond films: the role of topography and boron doping. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2016; 27:90. [PMID: 26975747 DOI: 10.1007/s10856-016-5696-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Accepted: 02/29/2016] [Indexed: 06/05/2023]
Abstract
Boron-doped nanocrystalline diamond (BNCD) films exhibit outstanding electrochemical properties that make them very attractive for the fabrication of electrodes for novel neural interfaces and prosthetics. In these devices, the physicochemical properties of the electrode materials are critical to ensure an efficient long-term performance. The aim of this study was to investigate the relative contribution of topography and doping to the biological performance of BNCD films. For this purpose, undoped and boron-doped NCD films were deposited on low roughness (LR) and high roughness (HR) substrates, which were studied in vitro by means of protein adsorption and fibroblast growth assays. Our results show that BNCD films significantly reduce the adsorption of serum proteins, mostly on the LR substrates. As compared to fibroblasts cultured on LR BNCD films, cells grown on the HR BNCD films showed significantly reduced adhesion and lower growth rates. The mean length of fibronectin fibrils deposited by the cells was significantly increased in the BNCD coated substrates, mainly in the LR surfaces. Overall, the largest influence on protein adsorption, cell adhesion, proliferation, and fibronectin deposition was due to the underlying sub-micron topography, with little or no influence of boron doping. In perspective, BNCD films displaying surface roughness in the submicron range may be used as a strategy to reduce the fibroblast growth on the surface of neural electrodes.
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Affiliation(s)
- María Alcaide
- Laboratory for Stem Cell Research, Department of Health Science and Technology, Aalborg University, Fredrik Bajers Vej 3B, 9220, Aalborg, Denmark
| | - Stavros Papaioannou
- Laboratory for Stem Cell Research, Department of Health Science and Technology, Aalborg University, Fredrik Bajers Vej 3B, 9220, Aalborg, Denmark
| | - Andrew Taylor
- Institute of Physics, ASCR v.v.i., Prague, Czech Republic
- Nano6 s.r.o., Kladno, Czech Republic
| | | | - Leonid Gurevich
- Department of Physics and Nanotechnology, Aalborg University, Aalborg ∅, Denmark
| | - Vladimir Zachar
- Laboratory for Stem Cell Research, Department of Health Science and Technology, Aalborg University, Fredrik Bajers Vej 3B, 9220, Aalborg, Denmark
| | - Cristian Pablo Pennisi
- Laboratory for Stem Cell Research, Department of Health Science and Technology, Aalborg University, Fredrik Bajers Vej 3B, 9220, Aalborg, Denmark.
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Gorzelanny C, Kmeth R, Obermeier A, Bauer AT, Halter N, Kümpel K, Schneider MF, Wixforth A, Gollwitzer H, Burgkart R, Stritzker B, Schneider SW. Silver nanoparticle-enriched diamond-like carbon implant modification as a mammalian cell compatible surface with antimicrobial properties. Sci Rep 2016; 6:22849. [PMID: 26955791 PMCID: PMC4783782 DOI: 10.1038/srep22849] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Accepted: 02/23/2016] [Indexed: 02/06/2023] Open
Abstract
The implant-bone interface is the scene of competition between microorganisms and distinct types of tissue cells. In the past, various strategies have been followed to support bony integration and to prevent bacterial implant-associated infections. In the present study we investigated the biological properties of diamond-like carbon (DLC) surfaces containing silver nanoparticles. DLC is a promising material for the modification of medical implants providing high mechanical and chemical stability and a high degree of biocompatibility. DLC surface modifications with varying silver concentrations were generated on medical-grade titanium discs, using plasma immersion ion implantation-induced densification of silver nanoparticle-containing polyvinylpyrrolidone polymer solutions. Immersion of implants in aqueous liquids resulted in a rapid silver release reducing the growth of surface-bound and planktonic Staphylococcus aureus and Staphylococcus epidermidis. Due to the fast and transient release of silver ions from the modified implants, the surfaces became biocompatible, ensuring growth of mammalian cells. Human endothelial cells retained their cellular differentiation as indicated by the intracellular formation of Weibel-Palade bodies and a high responsiveness towards histamine. Our findings indicate that the integration of silver nanoparticles into DLC prevents bacterial colonization due to a fast initial release of silver ions, facilitating the growth of silver susceptible mammalian cells subsequently.
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Affiliation(s)
- Christian Gorzelanny
- Experimental Dermatology, Department of Dermatology, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Ralf Kmeth
- Experimental Physics IV, Physics Institute, Augsburg University, Augsburg, Germany
| | - Andreas Obermeier
- Clinic of Orthopedics and Traumatology, Technical University Munich, 81675 Munich, Germany
| | - Alexander T Bauer
- Experimental Dermatology, Department of Dermatology, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Natalia Halter
- Experimental Dermatology, Department of Dermatology, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Katharina Kümpel
- Clinic of Orthopedics and Traumatology, Technical University Munich, 81675 Munich, Germany
| | | | - Achim Wixforth
- Experimental Physics I, Physics Institute, Augsburg University, Augsburg, Germany.,Augsburg Center for Innovative Technologies, Augsburg, Germany
| | - Hans Gollwitzer
- Clinic of Orthopedics and Traumatology, Technical University Munich, 81675 Munich, Germany
| | - Rainer Burgkart
- Clinic of Orthopedics and Traumatology, Technical University Munich, 81675 Munich, Germany
| | - Bernd Stritzker
- Experimental Physics IV, Physics Institute, Augsburg University, Augsburg, Germany
| | - Stefan W Schneider
- Experimental Dermatology, Department of Dermatology, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
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Cai Y, Edin F, Jin Z, Alexsson A, Gudjonsson O, Liu W, Rask-Andersen H, Karlsson M, Li H. Strategy towards independent electrical stimulation from cochlear implants: Guided auditory neuron growth on topographically modified nanocrystalline diamond. Acta Biomater 2016; 31:211-220. [PMID: 26593784 DOI: 10.1016/j.actbio.2015.11.021] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Revised: 11/10/2015] [Accepted: 11/14/2015] [Indexed: 12/14/2022]
Abstract
Cochlear implants (CI) have been used for several decades to treat patients with profound hearing loss. Nevertheless, results vary between individuals, and fine hearing is generally poor due to the lack of discrete neural stimulation from the individual receptor hair cells. A major problem is the deliverance of independent stimulation signals to individual auditory neurons. Fine hearing requires significantly more stimulation contacts with intimate neuron/electrode interphases from ordered axonal re-growth, something current CI technology cannot provide. Here, we demonstrate the potential application of micro-textured nanocrystalline diamond (NCD) surfaces on CI electrode arrays. Such textured NCD surfaces consist of micrometer-sized nail-head-shaped pillars (size 5×5μm(2)) made with sequences of micro/nano-fabrication processes, including sputtering, photolithography and plasma etching. The results show that human and murine inner-ear ganglion neurites and, potentially, neural progenitor cells can attach to patterned NCD surfaces without an extracellular matrix coating. Microscopic methods revealed adhesion and neural growth, specifically along the nail-head-shaped NCD pillars in an ordered manner, rather than in non-textured areas. This pattern was established when the inter-NCD pillar distance varied between 4 and 9μm. The findings demonstrate that regenerating auditory neurons show a strong affinity to the NCD pillars, and the technique could be used for neural guidance and the creation of new neural networks. Together with the NCD's unique anti-bacterial and electrical properties, patterned NCD surfaces could provide designed neural/electrode interfaces to create independent electrical stimulation signals in CI electrode arrays for the neural population. STATEMENT OF SIGNIFICANCE Cochlear implant is currently a successful way to treat sensorineural hearing loss and deafness especially in children. Although clinically successful, patients' fine hearing cannot be completely restored. One problem is the amount of the electrodes; 12-20 electrodes are used to replace the function of 3400 inner hair cells. Intense research is ongoing aiming to increase the number of electrodes. This study demonstrates the use of nanocrystalline diamond as a potential nerve-electrode interface. Micrometer-sized nanocrystalline diamond pillars showed high affinity to regenerated human neurons, which grew into a pre-defined network based on the pillar design. Our findings are of particular interest since they can be applied on any silicon-based implant to increase electrode count and to achieve individual neuron stimulation patterns.
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Affiliation(s)
- Yixiao Cai
- Department of Engineering Sciences, Ångström Laboratory, Uppsala University, Uppsala, Sweden
| | - Fredrik Edin
- Otolaryngology and Head & Neck Surgery, Department of Surgical Sciences, Uppsala University, Uppsala, Sweden
| | - Zhe Jin
- Physiology; Molecular Physiology and Neuroscience, Department of Neuroscience, Uppsala University, Uppsala, Sweden
| | - Andrei Alexsson
- Rheumatology, Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | - Olafur Gudjonsson
- Neurosurgery, Department of Neuroscience, Uppsala University, Uppsala, Sweden
| | - Wei Liu
- Otolaryngology and Head & Neck Surgery, Department of Surgical Sciences, Uppsala University, Uppsala, Sweden
| | - Helge Rask-Andersen
- Otolaryngology and Head & Neck Surgery, Department of Surgical Sciences, Uppsala University, Uppsala, Sweden
| | - Mikael Karlsson
- Department of Engineering Sciences, Ångström Laboratory, Uppsala University, Uppsala, Sweden.
| | - Hao Li
- Otolaryngology and Head & Neck Surgery, Department of Surgical Sciences, Uppsala University, Uppsala, Sweden.
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Taylor AC, Vagaska B, Edgington R, Hébert C, Ferretti P, Bergonzo P, Jackman RB. Biocompatibility of nanostructured boron doped diamond for the attachment and proliferation of human neural stem cells. J Neural Eng 2015; 12:066016. [DOI: 10.1088/1741-2560/12/6/066016] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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18
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Maru M, Amaral M, Rodrigues S, Santos R, Gouvea C, Archanjo B, Trommer R, Oliveira F, Silva R, Achete C. The High performance of nanocrystalline CVD diamond coated hip joints in wear simulator test. J Mech Behav Biomed Mater 2015; 49:175-85. [DOI: 10.1016/j.jmbbm.2015.05.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Revised: 04/28/2015] [Accepted: 05/07/2015] [Indexed: 12/12/2022]
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Al-Haj Ali SN. In vitro toxicity of propolis in comparison with other primary teeth pulpotomy agents on human fibroblasts. ACTA ACUST UNITED AC 2015; 7:308-13. [PMID: 25917461 DOI: 10.1111/jicd.12157] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2014] [Accepted: 02/28/2015] [Indexed: 11/30/2022]
Abstract
AIM The aim of this study was to assess and compare the in vitro toxicity of propolis with other primary teeth pulpotomy medicaments. METHODS Human periodontal ligament (PDL) cells were subjected to different concentrations of propolis, formocresol, ferric sulfate, and gray mineral trioxide aggregate (MTA) (0.05, 0.5, 5, 50, and 100 μg/mL) for 24 h at 37°C. Cells that were not exposed to the tested materials served as the negative control. In vitro toxicity was assessed using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay. Statistical analysis of the data was accomplished using anova and Tukey statistical tests (P < 0.05). RESULTS Only propolis and gray MTA had comparable cell viability to the negative control group. Almost all remaining concentrations of tested materials were significantly inferior to the negative control after 24 h of exposure (P < 0.05). CONCLUSION Propolis and MTA are more biocompatible than formocresol and ferric sulfate since they were both able to preserve PDL fibroblasts for up to 24 h.
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Affiliation(s)
- Sanaa Najeh Al-Haj Ali
- Department of Orthodontics and Pediatric Dentistry, Qassim University, Qassim, Saudi Arabia
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20
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Tong W, Fox K, Ganesan K, Prawer S. Design of a Patterned Diamond Substrate for Ordered Neural Cell Adhesion. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.protcy.2015.07.033] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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21
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Vaitkuviene A, McDonald M, Vahidpour F, Noben JP, Sanen K, Ameloot M, Ratautaite V, Kaseta V, Biziuleviciene G, Ramanaviciene A, Nesladek M, Ramanavicius A. Impact of differently modified nanocrystalline diamond on the growth of neuroblastoma cells. N Biotechnol 2015; 32:7-12. [DOI: 10.1016/j.nbt.2014.06.008] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2013] [Revised: 06/24/2014] [Accepted: 06/24/2014] [Indexed: 01/23/2023]
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22
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Al-Haj Ali SN, Al-Jundi SH, Ditto DJ. In vitro toxicity of formocresol, ferric sulphate, and grey MTA on human periodontal ligament fibroblasts. Eur Arch Paediatr Dent 2014; 16:51-5. [PMID: 25351856 DOI: 10.1007/s40368-014-0147-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2014] [Accepted: 09/05/2014] [Indexed: 11/29/2022]
Abstract
AIM This was to assess and compare the in vitro toxicity of formocresol, ferric sulphate and MTA on cultured human periodontal ligament (PDL) fibroblasts. STUDY DESIGN PDL cells were obtained from sound first permanent molars and cultured in Dulbecco's modified Eagle's medium. METHODS PDL cells were subjected to different concentrations of formocresol, ferric sulphate, and grey MTA for 24, 48, and 72 h at 37 °C. Cells that were not exposed to the tested materials served as the negative control. In vitro toxicity was assessed using MTT assay. STATISTICS Statistical analysis of data was accomplished using ANOVA and Tukey statistical tests (p<0.05). RESULTS The overall toxicity ranking of the tested materials was as follows: formocresol>ferric sulphate>grey MTA. Only grey MTA had comparable cell viability to the negative control, the other tested materials were significantly inferior at the three exposure periods (p<0.05). CONCLUSION Regarding the viability of PDL fibroblasts, MTA stands as the most promising substitute to formocresol. However, considering MTA's unavailability and high price in Jordan, ferric sulphate may be the best alternative to formocresol in pulpotomy of primary teeth.
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Affiliation(s)
- S N Al-Haj Ali
- Department of Orthodontics and Paediatric Dentistry, Faculty of Dentistry, Qassim University, PO Box 1126, Qassim, 51431, Kingdom of Saudi Arabia,
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23
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Al-Haj Ali SN, Al-Jundi SH, Ditto DJ. In vitro toxicity of grey MTA in comparison to white MTA on human periodontal ligament fibroblasts. Eur Arch Paediatr Dent 2014; 15:429-33. [DOI: 10.1007/s40368-014-0134-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2014] [Accepted: 05/26/2014] [Indexed: 11/30/2022]
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24
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Yeap WS, Murib MS, Cuypers W, Liu X, van Grinsven B, Ameloot M, Fahlman M, Wagner P, Maes W, Haenen K. Boron-Doped Diamond Functionalization by an Electrografting/Alkyne-Azide Click Chemistry Sequence. ChemElectroChem 2014. [DOI: 10.1002/celc.201402068] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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25
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Ojovan SM, McDonald M, McDonald M, Rabieh N, Shmuel N, Erez H, Nesladek M, Spira ME. Nanocrystalline diamond surfaces for adhesion and growth of primary neurons, conflicting results and rational explanation. FRONTIERS IN NEUROENGINEERING 2014; 7:17. [PMID: 24966832 PMCID: PMC4052739 DOI: 10.3389/fneng.2014.00017] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/11/2014] [Accepted: 05/23/2014] [Indexed: 02/05/2023]
Abstract
Using a variety of proliferating cell types, it was shown that the surface of nanocrystalline diamond (NCD) provides a permissive substrate for cell adhesion and development without the need of complex chemical functionalization prior to cell seeding. In an extensive series of experiments we found that, unlike proliferating cells, post-mitotic primary neurons do not adhere to bare NCD surfaces when cultured in defined medium. These observations raise questions on the potential use of bare NCD as an interfacing layer for neuronal devices. Nevertheless, we also found that classical chemical functionalization methods render the “hostile” bare NCD surfaces with adhesive properties that match those of classically functionalized substrates used extensively in biomedical research and applications. Based on the results, we propose a mechanism that accounts for the conflicting results; which on one hand claim that un-functionalized NCD provides a permissive substrate for cell adhesion and growth, while other reports demonstrate the opposite.
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Affiliation(s)
- Silviya M Ojovan
- Department of Neurobiology, The Alexander Silberman Institute of Life Science, The Hebrew University of Jerusalem Jerusalem, Israel
| | - Matthew McDonald
- Institute for Materials Research in MicroElectronics - Interuniversity Micro Electronics Centre, Hasselt University Antwerp, Belgium
| | | | - Noha Rabieh
- Department of Neurobiology, The Alexander Silberman Institute of Life Science, The Hebrew University of Jerusalem Jerusalem, Israel
| | - Nava Shmuel
- Department of Neurobiology, The Alexander Silberman Institute of Life Science, The Hebrew University of Jerusalem Jerusalem, Israel ; The Harvy M. Kruger Family Center for Nanoscience, The Hebrew University of Jerusalem Jerusalem, Israel
| | - Hadas Erez
- Department of Neurobiology, The Alexander Silberman Institute of Life Science, The Hebrew University of Jerusalem Jerusalem, Israel
| | - Milos Nesladek
- Institute for Materials Research in MicroElectronics - Interuniversity Micro Electronics Centre, Hasselt University Antwerp, Belgium
| | - Micha E Spira
- Department of Neurobiology, The Alexander Silberman Institute of Life Science, The Hebrew University of Jerusalem Jerusalem, Israel ; The Harvy M. Kruger Family Center for Nanoscience, The Hebrew University of Jerusalem Jerusalem, Israel
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26
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Duailibi SE, Duailibi MT, Ferreira LM, Salmazi KILC, Salvadori MC, de Sá Teixeira F, Pasquarelli A, Vacanti JP, Yelick PC. Tooth tissue engineering: the influence of hydrophilic surface on nanocrystalline diamond films for human dental stem cells. Tissue Eng Part A 2013; 19:2537-43. [PMID: 23863195 DOI: 10.1089/ten.tea.2012.0628] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
New techniques for tissue engineering (TE) are rapidly emerging. The basic concept of autologous TE is to isolate cells from small biopsy specimens, and to expand these cells in culture for subsequent seeding onto biodegradable scaffolds. Nanocrystalline diamond films have attracted the attention of researchers from a variety of different areas in recent years, due to their unique and exceptional properties. In this approach, human dental stem cells (hDSCs) were characterized by flow cytometry and grown on diamond films with hydrogen (H)-terminated and oxygen (O)-terminated surfaces for 28 days, and then removed by lysis and washing with distilled water. Energy dispersive spectroscopy analysis was performed, showing that the regions with O-terminated surfaces contained much higher levels of deposited calcium, oxygen, and phosphorus. These results suggest that the extracellular matrix was considerably more developed in the O-terminated regions, as compared with the H-terminated regions. In addition, optical microscopy of hDSCs cultured on the diamond substrate with H- and O-terminated surfaces, before washing with distilled water, showed preferential directions of the cells arrangement, where orthogonal lines suggest that the cells appeared to be following the O-terminated regions or hydrophilic surface. These findings suggest that O-terminated diamond surfaces prepared on biodegradable scaffolds can be useful for mineralized dental tissue formation.
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Affiliation(s)
- Silvio Eduardo Duailibi
- 1 Department of Medicine, Division of Plastic Surgery, UNIFESP-CTCMol-Federal University of São Paulo, Center of Cellular and Molecular Therapy, São Paulo, Brazil
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27
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Metzler P, von Wilmowsky C, Stadlinger B, Zemann W, Schlegel KA, Rosiwal S, Rupprecht S. Nano-crystalline diamond-coated titanium dental implants – A histomorphometric study in adult domestic pigs. J Craniomaxillofac Surg 2013; 41:532-8. [DOI: 10.1016/j.jcms.2012.11.020] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2012] [Revised: 11/13/2012] [Accepted: 11/14/2012] [Indexed: 10/27/2022] Open
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Variations to the nanotube surface for bone regeneration. Int J Biomater 2013; 2013:513680. [PMID: 23710182 PMCID: PMC3655601 DOI: 10.1155/2013/513680] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2012] [Accepted: 03/31/2013] [Indexed: 12/02/2022] Open
Abstract
The complex mechanisms of the bone cell-surface interactions are yet to be completely understood, and researchers continue to strive to uncover the fully optimized implant material for perfect osseointegration. A particularly fascinating area of research involves the study of nanostructured surfaces, which are believed to enhance osteogenic behavior, possibly due to the mimicry of components of the extracellular matrix of bone. There is a growing body of data that emphasizes the promise of the titanium oxide (TiO2) nanotube architecture as an advanced orthopedic implant material. The review herein highlights findings regarding TiO2 nanotube surfaces for bone regeneration and the osteogenic effects of minute changes to the surface such as tube size and surface chemistry.
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29
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Catledge SA, Thomas V, Vohra YK. Nanostructured diamond coatings for orthopaedic applications. WOODHEAD PUBLISHING SERIES IN BIOMATERIALS 2013; 2013:105-150. [PMID: 25285213 PMCID: PMC4181380 DOI: 10.1533/9780857093516.2.105] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
With increasing numbers of orthopaedic devices being implanted, greater emphasis is being placed on ceramic coating technology to reduce friction and wear in mating total joint replacement components, in order to improve implant function and increase device lifespan. In this chapter, we consider ultra-hard carbon coatings, with emphasis on nanostructured diamond, as alternative bearing surfaces for metallic components. Such coatings have great potential for use in biomedical implants as a result of their extreme hardness, wear resistance, low friction and biocompatibility. These ultra-hard carbon coatings can be deposited by several techniques resulting in a wide variety of structures and properties.
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Affiliation(s)
| | - V Thomas
- University of Alabama at Birmingham, USA
| | - Y K Vohra
- University of Alabama at Birmingham, USA
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30
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Rodrigues SP, Paiva JM, De Francesco S, Amaral MI, Oliveira FJ, Silva RF. Artifact level produced by different femoral head prostheses in CT imaging: diamond coated silicon nitride as total hip replacement material. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2013; 24:231-239. [PMID: 23053807 DOI: 10.1007/s10856-012-4778-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2012] [Accepted: 09/25/2012] [Indexed: 06/01/2023]
Abstract
Commercial femoral head prostheses (cobalt-chromium alloy, yttria partially stabilized zirconia (Y-PSZ) and alumina) and new silicon nitride ceramic ones (nanocrystalline diamond coated and uncoated) were compared in terms of artifact level production by computed tomography (CT). Pelvis examination by CT allows the correct diagnosis of some pathologies (e.g. prostate and colon cancer) and the evaluation of the prosthesis-bone interface in post-operative joint surgery. Artifact quantification is rarely seen in literature despite having a great potential to grade biomaterials according to their imaging properties. Materials' characteristics (density and effective atomic number), size and geometry of the prostheses can cause more or less artifact. A quantification procedure based on the calculation of four statistical parameters for the Hounsfield pixel values (mean, standard deviation, mean squared error and worst case error) is presented. CT sequential and helical scanning modes were performed. Results prove the artifact reproducibility and indicate that the cobalt-chromium and Y-PSZ are the most artifact-inducing materials, while alumina and silicon nitride (diamond coated and uncoated) ceramic ones present a low level of artifact. Considering the excellent biocompatibility and biotribological behaviour reported in earlier works, combined with the high medical imaging quality here assessed, diamond coated silicon nitride ceramics are arising as new materials for joint replacement.
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Affiliation(s)
- Simone P Rodrigues
- CICECO, Department of Ceramics and Glass Engineering, University of Aveiro, Aveiro, Portugal.
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31
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Kumar V, Kumari A, Guleria P, Yadav SK. Evaluating the toxicity of selected types of nanochemicals. REVIEWS OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2012; 215:39-121. [PMID: 22057930 DOI: 10.1007/978-1-4614-1463-6_2] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Nanotechnology is a fast growing field that provides for the development of materials that have new dimensions, novel properties, and a broader array of applications. Various scientific groups are keen about this technology and are devoting themselves to the development of more, new, and better nanomaterials. In the near future, expectations are that no field will be left untouched by the magical benefits available through application of nanotechnology. Presently, there is only limited knowledge concerning the toxicological effects of NPs. However, it is now known that the toxic behavior of NPs differ from their bulk counterparts. Even NPs that have the same chemical composition differ in their toxicological properties; the differences in toxicity depend upon size, shape, and surface covering. Hence, before NPs are commercially used it is most important that they be subjected to appropriate toxicity evaluation. Among the parameters of NPs that must be evaluated for their effect on toxicity are surface charges, types of coating material, and reactivity of NPs. In this article, we have reviewed the literature pertinent to the toxicity of metal oxide NPs, metallic NPs, quantum dots (QDs), silica (SiO2) NPs, carbon nanotubes (CNTs), and certain other carbon nanomaterials (NMs). These NPs have already found a wide range of applications around the world. In vitro and in vivo studies on NPs have revealed that most are toxic to animals. However, their toxic behavior varies with their size, shape, surface charge, type of coating material and reactivity. Dose, route of administration, and exposure are critical factors that affect the degree of toxicity produced by any particular type of NP. It is for this reason that we believe a careful and rigorous toxicity testing is necessary before any NP is declared to be safe for broad use. We also believe that an agreed upon testing system is needed that can be used to suitably, accurately, and economically assess the toxicity of NPs. NPs have produced an array of different toxic effects in many different types of in vivo and in vitro studies. The types of effects that NPs have produced are those on the pulmonary, cardiac, reproductive, renal and cutaneous systems, as well as on various cell lines. After exposures, significant accumulations of NPs have been found in the lungs, brain, liver, spleen, and bones of test species. It has been well established that the degree of toxicity produced by NPs is linked to their surface properties. Soluble NPs are rendered toxic because of their constituents; however, the situation is entirely different for insoluble NPs. Stable metal oxides do not show any toxicity, whereas metallic NPs that have redox potential may be cytotoxic and genotoxic. The available data on NP toxicity is unfortunately limited, and hence, does not allow scientists to yet make a significant quantitative risk assessment of the safety of synthesized NPs. In this review, we have endeavored to illustrate the importance of having and using results from existing nanotoxicological studies and for developing new and more useful future risk assessment systems. Increased efforts of both an individual and collective nature are required to explore the future pros and cons of nanotechnology.
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Affiliation(s)
- Vineet Kumar
- Biotechnology Division, Institute of Himalayan Bioresource Technology, CSIR, Palampur, HP, 176061, India
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Brammer KS, Choi C, Frandsen CJ, Oh S, Johnston G, Jin S. Comparative cell behavior on carbon-coated TiO2 nanotube surfaces for osteoblasts vs. osteo-progenitor cells. Acta Biomater 2011; 7:2697-703. [PMID: 21382531 DOI: 10.1016/j.actbio.2011.02.039] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2010] [Revised: 01/27/2011] [Accepted: 02/28/2011] [Indexed: 10/18/2022]
Abstract
Surface engineering approaches that alter the topological chemistry of a substrate could be used as an effective tool for directing cell interactions and their subsequent function. It is well known that the physical environment of nanotopography has positive effects on cell behavior, yet direct comparisons of nanotopographic surface chemistry have not been fully explored. Here we compare TiO(2) nanotubes with carbon-coated TiO(2) nanotubes, probing osteogenic cell behavior, including osteoblast (bone cells) and mesenchymal stem cell (MSC) (osteo-progenitor cells) interactions with the different surface chemistries (TiO(2) vs. carbon). The roles played by the material surface chemistry of the nanotubes did not have an effect on the adhesion, growth or morphology, but had a major influence on the alkaline phosphatase (ALP) activity of osteoblast cells, with the original TiO(2) chemistry having higher ALP levels. In addition, the different chemistries caused different levels of osteogenic differentiation in MSCs; however, it was the carbon-coated TiO(2) nanotubes that had the greater advantage, with higher levels of osteo-differentiation. It was observed in this study that: (a) chemistry plays a role in cell functionality, such as ALP activity and osteogenic protein gene expression (PCR); (b) different cell types may have different chemical preferences for optimal function. The ability to optimize cell behavior using surface chemistry factors has a profound effect on both orthopedic and tissue engineering in general. This study aims to highlight the importance of the chemistry of the carrier material in osteogenic tissue engineering schemes.
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Marcon L, Spriet C, Coffinier Y, Galopin E, Rosnoblet C, Szunerits S, Héliot L, Angrand PO, Boukherroub R. Cell adhesion properties on chemically micropatterned boron-doped diamond surfaces. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:15065-15069. [PMID: 20715878 DOI: 10.1021/la101757f] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
The adhesion properties of living cells were investigated on a range of chemically modified boron-doped diamond (BDD) surfaces. We studied the influence of oxidized, H-, amine- (NH(2)-), methyl- (CH(3)-), trifluoromethyl- (CF(3)-) and vinyl- (CH(2)═CH-) terminated BDD surfaces on human osteosarcoma U2OS and mouse fibroblast L929 cells behavior. Cell-surface interactions were analyzed by fluorescence microscopy in terms of cell attachment, spreading and proliferation. U2OS cells poorly adhered on hydrophobic surfaces and their growth was blocked. In contrast, L929 cells were mainly influenced by the presence of perfluoroalkyl chains in regard to their morphology. The results were subsequently applied to selectively micropattern U2OS cells on dual hydrophobic/hydrophilic surfaces prepared by a UV/ozone lithographic approach. U2OS cells colonized preferentially hydrophilic (oxide-terminated) motifs, forming confluent arrays with distinguishable edges separating the alkyl regions.
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Affiliation(s)
- Lionel Marcon
- Interdisciplinary Research Institute, USR-CNRS 3078, Université de Lille 1, Parc de la Haute Borne, 50 avenue de Halley, 59658 Villeneuve d'Ascq, France.
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Kang Y, Cheung KC, Wong MH. Polycyclic aromatic hydrocarbons (PAHs) in different indoor dusts and their potential cytotoxicity based on two human cell lines. ENVIRONMENT INTERNATIONAL 2010; 36:542-7. [PMID: 20452024 DOI: 10.1016/j.envint.2010.04.006] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2010] [Revised: 03/22/2010] [Accepted: 04/09/2010] [Indexed: 05/04/2023]
Abstract
In this study, 55 air-conditioner filter dust samples from six different workplaces including commercial office, secondary school, shopping mall, hospital, electronic factory and manufacturing plant in Hong Kong were collected for analyses of PAH concentration and cytotoxicity. Chemical analyses showed that the total PAHs ranged from 1.17 to 25.5 microg/g, with the dust samples from manufacturing plant having the highest concentration. MTT (3-[4, 5-dimethylthiazol-2-yl]-2, 5-diphenyltetrasodium bromide) assay was performed to evaluate the cytotoxicity of organic dust extracts using human hepatocellular liver carcinoma cell line (HepG2) and human skin keratinocyte cell line (KERTr). Each organic dust extract showed marked dose-related response. Dust samples from the manufacturing plant showed the highest cytotoxicity. Curve estimation indicated that power model was fit for explaining the relationship between the total PAH concentration and lethal concentration 50 (LC(50)). In addition, a significant negative correlation was observed between the total PAH concentration and LC(50) both on HepG2 (r=-0.65, p<0.01) and KERTr (r=-0.63, p<0.01) cell lines. Source analyses demonstrated that the PAHs in dust were derived from pyrogenic origins.
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Affiliation(s)
- Yuan Kang
- Croucher Institute for Environmental Sciences, Department of Biology, Hong Kong Baptist University, Kowloon Tong, Hong Kong, PR China
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