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Alhilou A, Do T, Mizban L, Clarkson BH, Wood DJ, Katsikogianni MG. Physicochemical and Antibacterial Characterization of a Novel Fluorapatite Coating. ACS OMEGA 2016; 1:264-276. [PMID: 27656690 PMCID: PMC5026462 DOI: 10.1021/acsomega.6b00080] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Accepted: 08/01/2016] [Indexed: 06/06/2023]
Abstract
Peri-implantitis remains the major impediment to the long-term use of dental implants. With increasing concern over the growth in antibiotic resistance, there is considerable interest in the preparation of antimicrobial dental implant coatings that also induce osseointegration. One such potential coating material is fluorapatite (FA). The aim of this study was to relate the antibacterial effectiveness of FA coatings against pathogens implicated in peri-implantitis to the physicochemical properties of the coating. Ordered and disordered FA coatings were produced on the under and upper surfaces of stainless steel (SS) discs, respectively, using a hydrothermal method. Surface charge, surface roughness, wettability, and fluoride release were measured for each coating. Surface chemistry was assessed using X-ray photoelectron spectroscopy and FA crystallinity using X-ray diffraction. Antibacterial activity against periodontopathogens was assessed in vitro using viable counts, confocal microscopy, and scanning electron microscopy (SEM). SEM showed that the hydrothermal method produced FA coatings that were predominately aligned perpendicular to the SS substrate or disordered FA coatings consisting of randomly aligned rodlike crystals. Both FA coatings significantly reduced the growth of all examined bacterial strains in comparison to the control. The FA coatings, especially the disordered ones, presented significantly lower charge, greater roughness, and higher area when compared to the control, enhancing bacteria-material interactions and therefore bacterial deactivation by fluoride ions. The ordered FA layer reduced not only bacterial viability but adhesion too. The ordered FA crystals produced as a potential novel implant coating showed significant antibacterial activity against bacteria implicated in peri-implantitis, which could be explained by a detailed understanding of their physicochemical properties.
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Affiliation(s)
- Ahmed Alhilou
- Biomaterials
and Tissue Engineering Research Group and Microbiology and Cell Biology Research
Group, School of Dentistry, University of
Leeds, Clarendon Way, Leeds LS2 9LU, West Yorkshire, U.K.
| | - Thuy Do
- Biomaterials
and Tissue Engineering Research Group and Microbiology and Cell Biology Research
Group, School of Dentistry, University of
Leeds, Clarendon Way, Leeds LS2 9LU, West Yorkshire, U.K.
| | - Laith Mizban
- Biomaterials
and Tissue Engineering Research Group and Microbiology and Cell Biology Research
Group, School of Dentistry, University of
Leeds, Clarendon Way, Leeds LS2 9LU, West Yorkshire, U.K.
| | - Brian H. Clarkson
- Cariology,
Restorative Sciences, and Endodontics, School of Dentistry, University of Michigan, Ann Arbor 48109-1078, United States
| | - David J. Wood
- Biomaterials
and Tissue Engineering Research Group and Microbiology and Cell Biology Research
Group, School of Dentistry, University of
Leeds, Clarendon Way, Leeds LS2 9LU, West Yorkshire, U.K.
| | - Maria G. Katsikogianni
- Biomaterials
and Tissue Engineering Research Group and Microbiology and Cell Biology Research
Group, School of Dentistry, University of
Leeds, Clarendon Way, Leeds LS2 9LU, West Yorkshire, U.K.
- Advanced
Materials Engineering, Faculty of Engineering and Informatics, University of Bradford, Bradford BD7 1DP, U.K.
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102
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Koerner JD, Vives MJ, O'Connor JP, Chirichella P, Breitbart EA, Chaudhary SB, Uko L, Subramanian S, Fritton JC, Benevenia J, Lin SS. Zinc has insulin-mimetic properties which enhance spinal fusion in a rat model. Spine J 2016; 16:777-83. [PMID: 26850174 DOI: 10.1016/j.spinee.2016.01.190] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2015] [Revised: 12/17/2015] [Accepted: 01/22/2016] [Indexed: 02/03/2023]
Abstract
BACKGROUND CONTEXT Previous studies have found that insulin or insulin-like growth factor treatment can stimulate fracture healing in diabetic and normal animal models, and increase fusion rates in a rat spinal fusion model. Insulin-mimetic agents, such as zinc, have demonstrated antidiabetic effects in animal and human studies, and these agents that mimic the effects of insulin could produce the same beneficial effects on bone regeneration and spinal fusion. PURPOSE The purpose of this study was to analyze the effects of locally applied zinc on spinal fusion in a rat model. STUDY DESIGN/SETTING Institutional Animal Care and Use Committee-approved animal study using Sprague-Dawley rats was used as the study design. METHODS Thirty Sprague-Dawley rats (450-500 g) underwent L4-L5 posterolateral lumbar fusion (PLF). After decortication and application of approximately 0.3 g of autograft per side, one of three pellets were added to each site: high-dose zinc calcium sulfate (ZnCaSO4), low-dose ZnCaSO4 (half of the high dose), or a control palmitic acid pellet (no Zn dose). Systemic blood glucose levels were measured 24 hours postoperatively. Rats were sacrificed after 8weeks and the PLFs analyzed qualitatively by manual palpation and radiograph review, and quantitatively by micro-computed tomography (CT) analysis of bone volume and trabecular thickness. Statistical analyses with p-values set at .05 were accomplished with analysis of variance, followed by posthoc tests for quantitative data, or Mann-Whitney rank tests for qualitative assessments. RESULTS Compared with controls, the low-dose zinc group demonstrated a significantly higher manual palpation grade (p=.011), radiographic score (p=.045), and bone formation on micro-CT (172.9 mm(3) vs. 126.7 mm(3) for controls) (p<.01). The high-dose zinc also demonstrated a significantly higher radiographic score (p=.017) and bone formation on micro-CT (172.7 mm(3) vs. 126.7 mm(3)) (p<.01) versus controls, and was trending toward higher manual palpation scores (p=.058). CONCLUSIONS This study demonstrates the potential benefit of a locally applied insulin-mimetic agent, such as zinc, in a rat lumbar fusion model. Previous studies have demonstrated the benefits of local insulin application in the same model, and it appears that zinc has similar effects.
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Affiliation(s)
- John D Koerner
- Department of Orthopaedics, Rutgers University, New Jersey Medical School, 90 Bergen St, Suite 7300, Newark, NJ 07101, USA.
| | - Michael J Vives
- Department of Orthopaedics, Rutgers University, New Jersey Medical School, 90 Bergen St, Suite 7300, Newark, NJ 07101, USA
| | - J Patrick O'Connor
- Department of Orthopaedics, Rutgers University, New Jersey Medical School, 90 Bergen St, Suite 7300, Newark, NJ 07101, USA
| | - Paul Chirichella
- Department of Orthopaedics, Rutgers University, New Jersey Medical School, 90 Bergen St, Suite 7300, Newark, NJ 07101, USA
| | - Eric A Breitbart
- Department of Orthopaedics, Rutgers University, New Jersey Medical School, 90 Bergen St, Suite 7300, Newark, NJ 07101, USA
| | - Saad B Chaudhary
- Department of Orthopaedics, Rutgers University, New Jersey Medical School, 90 Bergen St, Suite 7300, Newark, NJ 07101, USA
| | - Linda Uko
- Department of Orthopaedics, Rutgers University, New Jersey Medical School, 90 Bergen St, Suite 7300, Newark, NJ 07101, USA
| | - Sangeeta Subramanian
- Department of Orthopaedics, Rutgers University, New Jersey Medical School, 90 Bergen St, Suite 7300, Newark, NJ 07101, USA
| | - J C Fritton
- Department of Orthopaedics, Rutgers University, New Jersey Medical School, 90 Bergen St, Suite 7300, Newark, NJ 07101, USA
| | - Joseph Benevenia
- Department of Orthopaedics, Rutgers University, New Jersey Medical School, 90 Bergen St, Suite 7300, Newark, NJ 07101, USA
| | - Sheldon S Lin
- Department of Orthopaedics, Rutgers University, New Jersey Medical School, 90 Bergen St, Suite 7300, Newark, NJ 07101, USA
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103
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Shadjou N, Hasanzadeh M. Graphene and its nanostructure derivatives for use in bone tissue engineering: Recent advances. J Biomed Mater Res A 2016; 104:1250-75. [DOI: 10.1002/jbm.a.35645] [Citation(s) in RCA: 93] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Accepted: 01/06/2016] [Indexed: 01/22/2023]
Affiliation(s)
- Nasrin Shadjou
- Department of Nanochemistry; Nano Technology Research Center and Faculty of Chemistry, Urmia University; Urmia Iran
| | - Mohammad Hasanzadeh
- Drug Applied Research Center, Tabriz University of Medical Sciences; Tabriz 51664 Iran
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104
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Garbo C, Sindilaru M, Carlea A, Tomoaia G, Almasan V, Petean I, Mocanu A, Horovitz O, Tomoaia-Cotisel M. Synthesis and structural characterization of novel porous zinc substituted nanohydroxyapatite powders. PARTICULATE SCIENCE AND TECHNOLOGY 2015. [DOI: 10.1080/02726351.2015.1121180] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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105
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Abstract
In recent years, a significant achievement has been made in developing biomaterials, in particular the design of bioceramics, from natural sources for various biomedical applications. In this review, we discuss the fundamentals of structure, function and characteristics of human bone, its calcium and phosphate composition, role and importance of bioceramics for bone repairing or regeneration. This review also outlines various isolation techniques and the application of novel marine-derived hydroxyapatite (HA) and tri-calcium phosphate (TCP) for biocomposites engineering, and their potentials for bone substitute and bone regeneration.
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106
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Kaygili O, Keser S, Kom M, Eroksuz Y, Dorozhkin SV, Ates T, Ozercan IH, Tatar C, Yakuphanoglu F. Strontium substituted hydroxyapatites: Synthesis and determination of their structural properties, in vitro and in vivo performance. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 55:538-46. [PMID: 26117787 DOI: 10.1016/j.msec.2015.05.081] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2014] [Revised: 04/10/2015] [Accepted: 05/28/2015] [Indexed: 01/20/2023]
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107
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Douglas TEL, Pilarz M, Lopez-Heredia M, Brackman G, Schaubroeck D, Balcaen L, Bliznuk V, Dubruel P, Knabe-Ducheyne C, Vanhaecke F, Coenye T, Pamula E. Composites of gellan gum hydrogel enzymatically mineralized with calcium-zinc phosphate for bone regeneration with antibacterial activity. J Tissue Eng Regen Med 2015; 11:1610-1618. [PMID: 26174042 DOI: 10.1002/term.2062] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Revised: 04/22/2015] [Accepted: 05/04/2015] [Indexed: 11/05/2022]
Abstract
Gellan gum hydrogels functionalized with alkaline phosphatase were enzymatically mineralized with phosphates in mineralization medium containing calcium (Ca) and zinc (Zn) to improve their suitability as biomaterials for bone regeneration. The aims of the study were to endow mineralized hydrogels with antibacterial activity by incorporation of Zn in the inorganic phase, and to investigate the effect of Zn incorporation on the amount and type of mineral formed, the compressive modulus of the mineralized hydrogels and on their ability to support adhesion and growth of MC3T3-E1 osteoblast-like cells. Mineralization medium contained glycerophosphate (0.05 m) and three different molar Ca:Zn ratios, 0.05:0, 0.04:0.01 and 0.025:0.025 (all mol/dm3 ), hereafter referred to as A, B and C, respectively. FTIR, SAED and TEM analysis revealed that incubation for 14 days caused the formation of predominantly amorphous mineral phases in sample groups A, B and C. The presence of Zn in sample groups B and C was associated with a drop in the amount of mineral formed and a smaller mineral deposit morphology, as observed by SEM. ICP-OES revealed that Zn was preferentially incorporated into mineral compared to Ca. Mechanical testing revealed a decrease in compressive modulus in sample group C. Sample groups B and C, but not A, showed antibacterial activity against biofilm-forming, methicillin-resistant Staphylococcus aureus. All sample groups supported cell growth. Zn incorporation increased the viable cell number. The highest values were seen on sample group C. In conclusion, the sample group containing the most Zn, i.e. group C, appears to be the most promising. Copyright © 2015 John Wiley & Sons, Ltd.
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Affiliation(s)
- Timothy E L Douglas
- Polymer Chemistry and Biomaterials (PBM) Group, Department of Organic Chemistry, Ghent University, Belgium
| | - Magdalena Pilarz
- Department of Biomaterials, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, Krakow, Poland
| | - Marco Lopez-Heredia
- Department of Experimental and Orofacial Medicine, Faculty of Dentistry, Philipps University, Marburg, Germany
| | - Gilles Brackman
- Laboratory of Pharmaceutical Microbiology, Ghent University, Belgium
| | - David Schaubroeck
- Centre for Microsystems Technology (CMST), IMEC, and Ghent University, Belgium
| | - Lieve Balcaen
- Department of Analytical Chemistry, Ghent University, Belgium
| | - Vitaliy Bliznuk
- Department of Materials Science and Engineering, Zwijnaarde, Belgium
| | - Peter Dubruel
- Polymer Chemistry and Biomaterials (PBM) Group, Department of Organic Chemistry, Ghent University, Belgium
| | - Christine Knabe-Ducheyne
- Department of Experimental and Orofacial Medicine, Faculty of Dentistry, Philipps University, Marburg, Germany
| | - Frank Vanhaecke
- Department of Analytical Chemistry, Ghent University, Belgium
| | - Tom Coenye
- Laboratory of Pharmaceutical Microbiology, Ghent University, Belgium
| | - Elzbieta Pamula
- Department of Biomaterials, Faculty of Materials Science and Ceramics, AGH University of Science and Technology, Krakow, Poland
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108
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Törne K, Larsson M, Norlin A, Weissenrieder J. Degradation of zinc in saline solutions, plasma, and whole blood. J Biomed Mater Res B Appl Biomater 2015; 104:1141-51. [PMID: 26061136 DOI: 10.1002/jbm.b.33458] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Revised: 04/30/2015] [Accepted: 05/13/2015] [Indexed: 11/08/2022]
Abstract
The initial degradation of zinc has been investigated through exposures to simulated and real body fluids of increasing complexity: phosphate buffered saline (PBS), Ringer's saline solution, human plasma, and whole blood. Real body fluids were used to close the electrolyte gap between simulated and in vivo environment. Polarization of zinc in whole blood show a passive response not present in other electrolytes. The analysis shows a decrease in corrosion rate with time for plasma and whole blood and an increase for PBS and Ringer's. During exposure to plasma and whole blood a bi-layered corrosion product with poor adherence was formed over a uniformly corroding surface. The corrosion products comprise a mixture of inorganic material and biomolecules. Samples degrading in PBS were prone to localized corrosion and formed thick porous corrosion products of primarily zinc phosphates while in Ringer's solution a gel like layer of zinc carbonate was formed over an interface with shallow pits. The use of whole blood or plasma as electrolytes for short term in vitro evaluation of potential biodegradable metals may provide an improved understanding of the behavior in vivo, while Ringer's solution is preferred over PBS for long term degradation studies of zinc. © 2015 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 104B: 1141-1151, 2016.
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Affiliation(s)
- Karin Törne
- Material Physics, KTH Royal Institute of Technology, Electrum 229, 16440, Kista, Sweden.,St Jude Medical Systems AB, Palmbladsgatan, Uppsala, Sweden
| | - Mariann Larsson
- Material Physics, KTH Royal Institute of Technology, Electrum 229, 16440, Kista, Sweden
| | - Anna Norlin
- St Jude Medical Systems AB, Palmbladsgatan, Uppsala, Sweden
| | - Jonas Weissenrieder
- Material Physics, KTH Royal Institute of Technology, Electrum 229, 16440, Kista, Sweden
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109
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Sampath Kumar TS, Madhumathi K, Rubaiya Y, Doble M. Dual mode antibacterial activity of ion substituted calcium phosphate nanocarriers for bone infections. Front Bioeng Biotechnol 2015; 3:59. [PMID: 25984512 PMCID: PMC4416447 DOI: 10.3389/fbioe.2015.00059] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2014] [Accepted: 04/17/2015] [Indexed: 12/02/2022] Open
Abstract
Nanotechnology has tremendous potential for the management of infectious diseases caused by multi-drug resistant bacteria, through the development of newer antibacterial materials and efficient modes of antibiotic delivery. Calcium phosphate (CaP) bioceramics are commonly used as bone substitutes due to their similarity to bone mineral and are widely researched upon for the treatment of bone infections associated with bone loss. CaPs can be used as local antibiotic delivery agents for bone infections and can be substituted with antibacterial ions in their crystal structure to have a wide spectrum, sustained antibacterial activity even against drug resistant bacteria. In the present work, a dual mode antibiotic delivery system with antibacterial ion substituted calcium deficient hydroxyapatite (CDHA) nanoparticles has been developed. Antibacterial ions such as zinc, silver, and strontium have been incorporated into CDHA at concentrations of 6, 0.25–0.75, and 2.5–7.5 at. %, respectively. The samples were found to be phase pure, acicular nanoparticles of length 40–50 nm and width 5–6 nm approximately. The loading and release profile of doxycycline, a commonly used antibiotic, was studied from the nanocarriers. The drug release was studied for 5 days and the release profile was influenced by the ion concentrations. The release of antibacterial ions was studied over a period of 21 days. The ion substituted CDHA samples were tested for antibacterial efficacy on Staphylococcus aureus and Escherichia coli by MIC/MBC studies and time-kill assay. AgCDHA and ZnCDHA showed high antibacterial activity against both bacteria, while SrCDHA was weakly active against S. aureus. Present study shows that the antibiotic release can provide the initial high antibacterial activity, and the sustained ion release can provide a long-term antibacterial activity. Such dual mode antibiotic and antibacterial ion release offers an efficient and potent way to treat an incumbent drug resistant infection.
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Affiliation(s)
- T S Sampath Kumar
- Medical Materials Laboratory, Department of Metallurgical and Materials Engineering, Indian Institute of Technology Madras , Chennai , India
| | - K Madhumathi
- Medical Materials Laboratory, Department of Metallurgical and Materials Engineering, Indian Institute of Technology Madras , Chennai , India
| | - Y Rubaiya
- Department of Biotechnology, Indian Institute of Technology Madras , Chennai , India
| | - Mukesh Doble
- Department of Biotechnology, Indian Institute of Technology Madras , Chennai , India
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110
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Uskoković V. Nanostructured platforms for the sustained and local delivery of antibiotics in the treatment of osteomyelitis. Crit Rev Ther Drug Carrier Syst 2015; 32:1-59. [PMID: 25746204 PMCID: PMC4406243 DOI: 10.1615/critrevtherdrugcarriersyst.2014010920] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
This article provides a critical view of the current state of the development of nanoparticulate and other solid-state carriers for the local delivery of antibiotics in the treatment of osteomyelitis. Mentioned are the downsides of traditional means for treating bone infection, which involve systemic administration of antibiotics and surgical debridement, along with the rather imperfect local delivery options currently available in the clinic. Envisaged are more sophisticated carriers for the local and sustained delivery of antimicrobials, including bioresorbable polymeric, collagenous, liquid crystalline, and bioglass- and nanotube-based carriers, as well as those composed of calcium phosphate, the mineral component of bone and teeth. A special emphasis is placed on composite multifunctional antibiotic carriers of a nanoparticulate nature and on their ability to induce osteogenesis of hard tissues demineralized due to disease. An ideal carrier of this type would prevent the long-term, repetitive, and systemic administration of antibiotics and either minimize or completely eliminate the need for surgical debridement of necrotic tissue. Potential problems faced by even hypothetically "perfect" antibiotic delivery vehicles are mentioned too, including (i) intracellular bacterial colonies involved in recurrent, chronic osteomyelitis; (ii) the need for mechanical and release properties to be adjusted to the area of surgical placement; (iii) different environments in which in vitro and in vivo testings are carried out; (iv) unpredictable synergies between drug delivery system components; and (v) experimental sensitivity issues entailing the increasing subtlety of the design of nanoplatforms for the controlled delivery of therapeutics.
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Affiliation(s)
- Vuk Uskoković
- Advanced Materials and Nanobiotechnology Laboratory, Richard and Loan Hill Department of Bioengineering, College of Medicine, University of Illinois at Chicago, 851 South Morgan St, #205 Chicago, Illinois, 60607-7052
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111
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Antibacterial properties of metal and metalloid ions in chronic periodontitis and peri-implantitis therapy. Acta Biomater 2014; 10:3795-810. [PMID: 24704700 DOI: 10.1016/j.actbio.2014.03.028] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2013] [Revised: 03/07/2014] [Accepted: 03/26/2014] [Indexed: 12/21/2022]
Abstract
Periodontal diseases like periodontitis and peri-implantitis have been linked with Gram-negative anaerobes. The incorporation of various chemotherapeutic agents, including metal ions, into several materials and devices has been extensively studied against periodontal bacteria, and materials doped with metal ions have been proposed for the treatment of periodontal and peri-implant diseases. The aim of this review is to discuss the effectiveness of materials doped with metal and metalloid ions already used in the treatment of periodontal diseases, as well as the potential use of alternative materials that are currently available for other applications but have been proved to be cytotoxic to the specific periodontal pathogens. The sources of this review included English articles using Google Scholar™, ScienceDirect, Scopus and PubMed. Search terms included the combinations of the descriptors "disease", "ionic species" and "bacterium". Articles that discuss the biocidal properties of materials doped with metal and metalloid ions against the specific periodontal bacteria were included. The articles were independently extracted by two authors using predefined data fields. The evaluation of resources was based on the quality of the content and the relevance to the topic, which was evaluated by the ionic species and the bacteria used in the study, while the final application was not considered as relevant. The present review summarizes the extensive previous and current research efforts concerning the use of metal ions in periodontal diseases therapy, while it points out the challenges and opportunities lying ahead.
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112
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Short-term in vivo evaluation of zinc-containing calcium phosphate using a normalized procedure. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 41:309-19. [DOI: 10.1016/j.msec.2014.04.054] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2013] [Revised: 04/04/2014] [Accepted: 04/23/2014] [Indexed: 11/22/2022]
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113
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Electrophoretic deposition of zinc-substituted hydroxyapatite coatings. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 39:67-72. [DOI: 10.1016/j.msec.2014.02.023] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2013] [Revised: 01/13/2014] [Accepted: 02/17/2014] [Indexed: 01/10/2023]
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114
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Kolmas J, Groszyk E, Kwiatkowska-Różycka D. Substituted hydroxyapatites with antibacterial properties. BIOMED RESEARCH INTERNATIONAL 2014; 2014:178123. [PMID: 24949423 PMCID: PMC4037608 DOI: 10.1155/2014/178123] [Citation(s) in RCA: 92] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Accepted: 04/14/2014] [Indexed: 02/06/2023]
Abstract
Reconstructive surgery is presently struggling with the problem of infections located within implantation biomaterials. Of course, the best antibacterial protection is antibiotic therapy. However, oral antibiotic therapy is sometimes ineffective, while administering an antibiotic at the location of infection is often associated with an unfavourable ratio of dosage efficiency and toxic effect. Thus, the present study aims to find a new factor which may improve antibacterial activity while also presenting low toxicity to the human cells. Such factors are usually implemented along with the implant itself and may be an integral part of it. Many recent studies have focused on inorganic factors, such as metal nanoparticles, salts, and metal oxides. The advantages of inorganic factors include the ease with which they can be combined with ceramic and polymeric biomaterials. The following review focuses on hydroxyapatites substituted with ions with antibacterial properties. It considers materials that have already been applied in regenerative medicine (e.g., hydroxyapatites with silver ions) and those that are only at the preliminary stage of research and which could potentially be used in implantology or dentistry. We present methods for the synthesis of modified apatites and the antibacterial mechanisms of various ions as well as their antibacterial efficiency.
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Affiliation(s)
- Joanna Kolmas
- Department of Inorganic and Analytical Chemistry, Faculty of Pharmacy, Medical University of Warsaw, Ul. Banacha 1, 02-097 Warsaw, Poland
| | - Ewa Groszyk
- Department of Inorganic and Analytical Chemistry, Faculty of Pharmacy, Medical University of Warsaw, Ul. Banacha 1, 02-097 Warsaw, Poland
| | - Dagmara Kwiatkowska-Różycka
- Department of Inorganic and Analytical Chemistry, Faculty of Pharmacy, Medical University of Warsaw, Ul. Banacha 1, 02-097 Warsaw, Poland
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