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Zhang M, Chen Q, Zhang R, Zhang Y, Wang F, He M, Guo X, Yang J, Zhang X, Mu J. Pyrolysis of Ca/Fe-rich antibiotic fermentation residues into biochars for efficient phosphate removal/recovery from wastewater: Turning hazardous waste to phosphorous fertilizer. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 869:161732. [PMID: 36682552 DOI: 10.1016/j.scitotenv.2023.161732] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Revised: 12/31/2022] [Accepted: 01/16/2023] [Indexed: 06/17/2023]
Abstract
Ca/Fe-rich antibiotic fermentation residues (AFRs), a type of hazardous waste, can be regarded as recyclable biomass and metal resources. However, concurrent detoxification and reutilization of biomass and metals resources from AFRs have never been reported before. In this study, Ca/Fe-rich vancomycin fermentation residues were pyrolyzed into biochar to adsorb phosphate for the first time. The residual vancomycin and antibiotic resistance genes were completely decomposed during pyrolysis. The resultant Ca/Fe-rich biochar exhibited excellent performance at adsorbing phosphate without further modifications. The process had rapid kinetics and a maximum adsorption capacity of 102 mg P/g. Ca and Fe were the active sites, whereas different mechanisms were observed under acidic and alkaline conditions. Surprisingly, HCO3- enhanced phosphate adsorption with an increase of adsorption capacity from 43.9 to 71.0 mg/g when HCO3- concentration increased from 1 to 10 mM. Furthermore, actual wastewater could be effectively treated by the biochar. The phosphate-rich spent biochar significantly promoted seed germination (germination rate: 96.7 % vs. 80.0 % in control group, p < 0.01) and seedling growth (shoot length was increased by 57.9 %, p < 0.01) due to the slow release of bioavailable phosphate, and thus could be potentially used as a phosphorous fertilizer. Consequently, the hazardous waste was turned into phosphorous fertilizer, with the additional benefits of detoxifying AFRs, reutilizing biomass and metal resources from AFRs, controlling phosphate pollution, and recovering phosphate from wastewater.
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Affiliation(s)
- Mingdong Zhang
- Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, Fuzhou Institute of Oceanography, Minjiang University, Fuzhou 350108, PR China
| | - Qinpeng Chen
- Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, Fuzhou Institute of Oceanography, Minjiang University, Fuzhou 350108, PR China; College of life and Environmental Science, Wenzhou University, Wenzhou 325035, PR China
| | - Ruirui Zhang
- Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, Fuzhou Institute of Oceanography, Minjiang University, Fuzhou 350108, PR China
| | - Yuting Zhang
- Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, Fuzhou Institute of Oceanography, Minjiang University, Fuzhou 350108, PR China
| | - Feipeng Wang
- Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, Fuzhou Institute of Oceanography, Minjiang University, Fuzhou 350108, PR China
| | - Minzhen He
- Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, Fuzhou Institute of Oceanography, Minjiang University, Fuzhou 350108, PR China; College of Environment & Safety Engineering, Fuzhou University, Fuzhou 350028, PR China
| | - Xiumei Guo
- Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, Fuzhou Institute of Oceanography, Minjiang University, Fuzhou 350108, PR China
| | - Jian Yang
- Fuzhou Fuxing Pharmaceutical Co., Ltd. of Lizhu Group, Fuzhou 350309, PR China
| | - Xiaoyuan Zhang
- Advanced Environmental Biotechnology Centre, Nanyang Environment & Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, Singapore 637141, Singapore; College of Environmental Science and Engineering, Nankai University, Tianjin 300350, PR China.
| | - Jingli Mu
- Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, Fuzhou Institute of Oceanography, Minjiang University, Fuzhou 350108, PR China.
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Moussa SB, Mehri A, Badraoui B. Magnesium modified calcium hydroxyapatite: An efficient and recyclable catalyst for the one-pot Biginelli condensation. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127111] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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3
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Degradation Behavior of Micro-Arc Oxidized ZK60 Magnesium Alloy in a Simulated Body Fluid. METALS 2018. [DOI: 10.3390/met8090724] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Bio-ceramic coatings were synthesized on ZK60 magnesium alloys by micro-arc oxidation (MAO). The degradation behavior of the ZK60 alloys with and without MAO coating in the simulated body fluid (SBF) was studied. The samples were characterized by means of scanning electron microscopy (SEM), laser scanning confocal microscopy (CLSM), and X-ray diffraction (XRD). Electrochemical impedance spectroscopy (EIS) was used to study the degradation behavior. The results showed that the porous MAO coating mainly consisted of MgO, Mg2SiO4, Mg3(PO4)2, and CaCO3. The pH values of both coated and uncoated samples increased over time. However, the pH values of the SBF for coated samples always maintained a lower level compared with those for the uncoated samples. Thereby, the coated samples showed a much lower degradation rate. After immersion in SBF for 5 days, corrosion product containing Ca and P was found on both samples, while the deposition was more active on the coated samples. The degradation models for the uncoated and coated samples in the SBF are also proposed and discussed.
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Tõnsuaadu K, Gruselle M, Kriisa F, Trikkel A, Gredin P, Villemin D. Dependence of the interaction mechanisms between L-serine and O-phospho-L-serine with calcium hydroxyapatite and copper modified hydroxyapatite in relation with the acidity of aqueous medium. J Biol Inorg Chem 2018; 23:929-937. [PMID: 29987356 DOI: 10.1007/s00775-018-1594-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Accepted: 07/05/2018] [Indexed: 11/24/2022]
Abstract
Motivated by the role of copper ions in biological processes the aim of this study was to elucidate the impact of copper ions bound to hydroxyapatite on L-serine (L-Ser) and O-phospho-L-serine (O-Ph-L-Ser) adsorption at different acidity of aqueous solutions. The adsorption phenomenon was studied by FTIR, UV, and AA spectroscopy, XRD and thermal analysis methods together with the evolved gases analysis taking into consideration the ionic state of the amino acids as well as the apatite surface state, which are tightly correlated with the solution pH. In acidic solution, the main process involves apatite dissolution releasing calcium and copper ions. At pH > 5 the complexation of amino acids with Ca2+ or Cu2+ ions is more important leading also to the release of cations. The ability of copper ions to form water soluble complexes with L-Ser and O-Ph-L-Ser leads to an important loss of these ions, while calcium release is very low at this pH. Therefore, the use of copper ions substituting calcium in the apatite structure to enhance the ability of amino acids adsorption on the apatite surface seems problematic even at pH > 5.
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Affiliation(s)
- Kaia Tõnsuaadu
- Institute of Materials and Environmental Technology, Tallinn University of Technology, Ehitajate tee 5, 19086, Tallinn, Estonia.
| | - Michel Gruselle
- CNRS, UMR 8232, Institut Parisien de Chimie Moléculaire, 4 Place Jussieu, 75005, Paris, France.,Sorbonne Université, UPMC Université Paris 06, 4 Place Jussieu, 75005, Paris, France
| | - Frieda Kriisa
- Institute of Materials and Environmental Technology, Tallinn University of Technology, Ehitajate tee 5, 19086, Tallinn, Estonia
| | - Andres Trikkel
- Institute of Materials and Environmental Technology, Tallinn University of Technology, Ehitajate tee 5, 19086, Tallinn, Estonia
| | - Patrick Gredin
- Sorbonne Université, UPMC Université Paris 06, 4 Place Jussieu, 75005, Paris, France.,Chimie Paris Tech, PSL Research Université, CNRS, Institut de Recherche de Chimie Paris, 75005, Paris, France
| | - Didier Villemin
- LCTM, UMR 6507, ENSICAEN, INC3M, Fr 3038, Normandie Université, 14050, Caen, France
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Ben Moussa S, Lachheb J, Gruselle M, Maaten B, Kriis K, Kanger T, Tõnsuaadu K, Badraoui B. Calcium, Barium and Strontium apatites: A new generation of catalysts in the Biginelli reaction. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.09.051] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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6
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Venegas SC, Palacios JM, Apella MC, Morando PJ, Blesa MA. Calcium Modulates Interactions between Bacteria and Hydroxyapatite. J Dent Res 2016; 85:1124-8. [PMID: 17122166 DOI: 10.1177/154405910608501211] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Bacterial adhesion onto hydroxyapatite is known to depend on the surface properties of both the biomaterial and the bacterial strain, but less is known about the influence of the composition of the aqueous medium. Here, the adhesion of Streptococcus mutans and 3 different Lactobacilli on powdered hydroxyapatite was shown to change with Ca2+ concentration. The effect depends on the surface properties of each strain. Adhesion of Lactobacillus fermentum and salivarius (and of Streptococcus mutans at low Ca2+) was enhanced with increasing Ca2+ concentration. Lactobacillus casei was efficiently removed by adhesion on hydroxyapatite, even without Ca2+ addition, and the effect of this ion was only marginal. The results are interpreted in terms of Ca2+-mediated adhesion, and relative to the hydrophobic properties of each strain and the electrical properties of the bacterial and solid surfaces (electrophoretic mobility).
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Affiliation(s)
- S C Venegas
- Centro de Referencia para Lactobacilos (CERELA), Chacabuco 145, 4000, San Miguel de Tucumán, Tucumán, Argentina
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Uskoković V. The Role of Hydroxyl Channel in Defining Selected Physicochemical Peculiarities Exhibited by Hydroxyapatite. RSC Adv 2015; 5:36614-36633. [PMID: 26229593 PMCID: PMC4517856 DOI: 10.1039/c4ra17180b] [Citation(s) in RCA: 85] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Mysteries surrounding the most important mineral for the vertebrate biology, hydroxyapatite, are many. Perhaps the Greek root of its name, απαταo, meaning 'to deceive' and given to its mineral form by the early gem collectors who confused it with more precious stones, is still applicable today, though in a different connotation, descriptive of a number of physicochemical peculiarities exhibited by it. Comparable to water as the epitome of peculiarities in the realm of liquids, hydroxyapatite can serve as a paradigm for peculiarities in the world of solids. Ten of the peculiar properties of hydroxyapatite are sketched in this review piece, ranging from (i) the crystal lattice flexibility to (ii) notorious surface layer instability to (iii) finite piezoelectricity, pyroelectricity and conductivity to protons to (iv) accelerated growth and improved osteoconductivity in the electromagnetic fields to (v) high nucleation rate at low supersaturations and low crystal growth rate at high supersaturations to (vi) higher bioactivity and resorbability of biological apatite compared to the synthetic ones, and beyond. An attempt has been made to explain this array of curious characteristics by referring to a particular element of the crystal structure of hydroxyapatite: the hydroxyl ion channel extending in the direction of the c-axis, through a crystallographic column created by the overlapping calcium ion triangles.
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Affiliation(s)
- Vuk Uskoković
- Advanced Materials and Nanobiotechnology Laboratory, Department of Bioengineering, University of Illinois, Chicago, IL 60607-7052, USA
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8
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Nunes APL, Peres AEC, Valadao GES. The influence of lattice ions on the electrokinetic potential of primary and secondary phosphates. SEP SCI TECHNOL 2015. [DOI: 10.1080/01496395.2015.1004347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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9
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Silver ion impregnated composite biomaterial optimally prepared using zeta potential measurements. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 47:222-9. [DOI: 10.1016/j.msec.2014.11.018] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2014] [Revised: 10/15/2014] [Accepted: 11/06/2014] [Indexed: 11/18/2022]
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10
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Cu-modified hydroxy-apatite as catalyst for Glaser–Hay CC homo- coupling reaction of terminal alkynes. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.molcata.2014.06.011] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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11
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Martínez CR, Rodríguez TL, Zhurbenko R, Valdés IA, Gontijo SML, Gomes ADM, Suarez DF, Sinisterra RD, Cortés ME. Development of a calcium phosphate nanocomposite for fast fluorogenic detection of bacteria. Molecules 2014; 19:13948-64. [PMID: 25197932 PMCID: PMC6271650 DOI: 10.3390/molecules190913948] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Revised: 06/30/2014] [Accepted: 07/02/2014] [Indexed: 11/30/2022] Open
Abstract
Current procedures for the detection and identification of bacterial infections are laborious, time-consuming, and require a high workload and well-equipped laboratories. Therefore the work presented herein developed a simple, fast, and low cost method for bacterial detection based on hydroxyapatite nanoparticles with a nutritive mixture and the fluorogenic substrate. Calcium phosphate ceramic nanoparticles were characterized and integrated with a nutritive mixture for the early detection of bacteria by visual as well as fluorescence spectroscopy techniques. The composite was obtained by combining calcium phosphate nanoparticles (Ca:P ratio, 1.33:1) with a nutritive mixture of protein hydrolysates and carbon sources, which promote fast bacterial multiplication, and the fluorogenic substrate 4-methylumbellipheryl-β-D-glucuronide (MUG). The composite had an average particle size of 173.2 nm and did not show antibacterial activity against Gram-negative or Gram-positive bacteria. After an Escherichia coli suspension was in contact with the composite for 60-90 min, fluorescence detected under UV light or by fluorescence spectrophotometer indicated the presence of bacteria. Intense fluorescence was observed after incubation for a maximum of 90 min. Thus, this calcium phosphate nanocomposite system may be useful as a model for the development of other nanoparticle composites for detection of early bacterial adhesion.
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Affiliation(s)
- Claudio R Martínez
- Centro Nacional de Biopreparados, Carretera a Beltrán Km 1 1/2, Bejucal, Mayabeque, Apartado 6048, Cuba.
| | - Tamara L Rodríguez
- Centro Nacional de Biopreparados, Carretera a Beltrán Km 1 1/2, Bejucal, Mayabeque, Apartado 6048, Cuba.
| | - Raisa Zhurbenko
- Centro Nacional de Biopreparados, Carretera a Beltrán Km 1 1/2, Bejucal, Mayabeque, Apartado 6048, Cuba.
| | - Ivonne A Valdés
- Centro Nacional de Biopreparados, Carretera a Beltrán Km 1 1/2, Bejucal, Mayabeque, Apartado 6048, Cuba.
| | - Sávio M L Gontijo
- Restorative Dentistry Department, Faculty of Dentistry, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, CEP 31270-901 Belo Horizonte, MG, Brazil.
| | - Alinne D M Gomes
- Chemistry Department, ICEx, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, CEP 31270-901 Belo Horizonte, MG, Brazil.
| | - Diego F Suarez
- Chemistry Department, ICEx, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, CEP 31270-901 Belo Horizonte, MG, Brazil.
| | - Rubén D Sinisterra
- Chemistry Department, ICEx, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, CEP 31270-901 Belo Horizonte, MG, Brazil.
| | - Maria E Cortés
- Restorative Dentistry Department, Faculty of Dentistry, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, CEP 31270-901 Belo Horizonte, MG, Brazil.
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Viipsi K, Sjöberg S, Tõnsuaadu K, Shchukarev A. Hydroxy- and fluorapatite as sorbents in Cd(II)-Zn(II) multi-component solutions in the absence/presence of EDTA. JOURNAL OF HAZARDOUS MATERIALS 2013; 252-253:91-98. [PMID: 23500794 DOI: 10.1016/j.jhazmat.2013.02.034] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2012] [Revised: 01/28/2013] [Accepted: 02/15/2013] [Indexed: 06/01/2023]
Abstract
Apatites are suitable sorbent materials for contaminated soil and water remediation because of their low solubility and ability to bind toxic metals into their structure. Whereas in soil/water systems different complexing ligands are present, it is important to examine how these ligands affect apatite metal sorption process. The removal of cadmium (Cd) and zinc (Zn) ions from aqueous solutions by hydroxyapatite (HAP) and fluorapatite (FAP) was investigated by batch experiments with and without EDTA being present in the pH range 4-11. The surface composition of the solid phases was analyzed by X-ray photoelectron spectroscopy (XPS). The surface layer of apatites (AP), according to the (Ca+Cd+Zn):P atomic ratio, remained constant (1.4 ± 0.1) through an ion exchange. The amount of Cd(2+) and Zn(2+) removed increased with increasing pH. The removed amount of Zn(2+) was higher than Cd(2+). In the Cd-Zn binary system, competitive sorption reduced the individual removed amounts but the total maximum sorption was approximately constant. In the presence of EDTA, Cd(2+) and Zn(2+) removal was reduced because of the formation of [CdEDTA](2-) and [ZnEDTA](2-) in solution. XPS revealed an enrichment of AP surface by Cd(2+) and Zn(2+) and formation of new surface solid-solution phase with the general composition Ca8.4-xMex(HPO4)1.6(PO4)4.4(OH)0.4.
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Affiliation(s)
- Karin Viipsi
- Laboratory of Inorganic Materials, Tallinn University of Technology, Ehitajate tee 5, 19086 Tallinn, Estonia.
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13
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Shi Q, Feng Q, Zhang G, Deng H. Electrokinetic properties of smithsonite and its floatability with anionic collector. Colloids Surf A Physicochem Eng Asp 2012. [DOI: 10.1016/j.colsurfa.2012.06.044] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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14
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Thrombin production and human neutrophil elastase sequestration by modified cellulosic dressings and their electrokinetic analysis. J Funct Biomater 2011; 2:391-413. [PMID: 24956451 PMCID: PMC4030916 DOI: 10.3390/jfb2040391] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2011] [Revised: 12/03/2011] [Accepted: 12/07/2011] [Indexed: 01/01/2023] Open
Abstract
Wound healing is a complex series of biochemical and cellular events. Optimally, functional material design addresses the overlapping acute and inflammatory stages of wound healing based on molecular, cellular, and bio-compatibility issues. In this paper the issues addressed are uncontrolled hemostasis and inflammation which can interfere with the orderly flow of wound healing. In this regard, we review the serine proteases thrombin and elastase relative to dressing functionality that improves wound healing and examine the effects of charge in cotton/cellulosic dressing design on thrombin production and elastase sequestration (uptake by the wound dressing). Thrombin is central to the initiation and propagation of coagulation, and elastase is released from neutrophils that can function detrimentally in a stalled inflammatory phase characteristic of chronic wounds. Electrokinetic fiber surface properties of the biomaterials of this study were determined to correlate material charge and polarity with function relative to thrombin production and elastase sequestration. Human neutrophil elastase sequestration was assessed with an assay representative of chronic wound concentration with cotton gauze cross-linked with three types of polycarboxylic acids and one phosphorylation finish; thrombin production, which was assessed in a plasma-based assay via a fluorogenic peptide substrate, was determined for cotton, cotton-grafted chitosan, chitosan, rayon/polyester, and two kaolin-treated materials including a commercial hemorrhage control dressing (QuickClot Combat Gauze). A correlation in thrombin production to zeta potential was found. Two polycarboxylic acid cross linked and a phosphorylated cotton dressing gave high elastase sequestration.
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Gruselle M, Kanger T, Thouvenot R, Flambard A, Kriis K, Mikli V, Traksmaa R, Maaten B, Tõnsuaadu K. Calcium Hydroxyapatites as Efficient Catalysts for the Michael C–C Bond Formation. ACS Catal 2011. [DOI: 10.1021/cs200460k] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Michel Gruselle
- Institut Parisien de Chimie Moléculaire, UMR CNRS 7201, Université Pierre et Marie Curie, 4 place Jussieu, case 42, 75252 Paris Cedex 05, France
| | - Tõnis Kanger
- Department of Chemistry, Tallinn University of Technology, Akadeemia tee 15, 12618 Tallinn, Estonia
| | - René Thouvenot
- Institut Parisien de Chimie Moléculaire, UMR CNRS 7201, Université Pierre et Marie Curie, 4 place Jussieu, case 42, 75252 Paris Cedex 05, France
| | - Alexandrine Flambard
- Institut Parisien de Chimie Moléculaire, UMR CNRS 7201, Université Pierre et Marie Curie, 4 place Jussieu, case 42, 75252 Paris Cedex 05, France
| | - Kadri Kriis
- Department of Chemistry, Tallinn University of Technology, Akadeemia tee 15, 12618 Tallinn, Estonia
| | | | | | - Birgit Maaten
- Department of Chemistry, Tallinn University of Technology, Akadeemia tee 15, 12618 Tallinn, Estonia
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16
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Nunes APL, Peres AEC, de Araujo AC, Valadão GES. Electrokinetic properties of wavellite and its floatability with cationic and anionic collectors. J Colloid Interface Sci 2011; 361:632-8. [DOI: 10.1016/j.jcis.2011.06.014] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2011] [Revised: 06/02/2011] [Accepted: 06/03/2011] [Indexed: 11/25/2022]
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17
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Abdel-Fattah WI, Elkhooly TA. Nano-beta-tricalcium phosphates synthesis and biodegradation: 2. Biodegradation and apatite layer formation on nabo-β-TCP synthesized via microwave treatment. Biomed Mater 2010; 5:35015. [PMID: 20526025 DOI: 10.1088/1748-6041/5/3/035015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The degradation and/or apatite layer precipitation ability of porous β-tricalcium phosphate(β-TCP) samples treated and untreated with microwave radiation during synthesis is investigated. Microwave heating was used to accelerate the formation of CDHA with the Ca/P ratio 1.5 in a shorter processing time which later forms β-TCP at around 650 ◦C. Soaking in simulated body fluid (SBF) for several periods (4, 8, 12, 24, 36, 48, 60 and 72 h) is performed in a cumulative manner. The deposition of an apatite layer is followed through diffuse reflected FT-IR, SEM and EDS. A microwave-treated sample having a smaller particle size than its parent induces the formation of a homogeneous carbonated apatite layer on its surface.On the other hand, the parent β-TCP sample exhibited less ability to induce Ca–P formation after being soaked in SBF. The formation of an apatite layer is attributed to the increase in surface area consequent to reduced particle and grain sizes besides the presence of a minor amount of hydroxyapatite phase in the microwave-treated β-TCP sample. The results prove that it is possible to control the biodegradation and apatite layer formation on sintered β-TCP porous disks through controlling the particle size.
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Vucinić DR, Radulović DS, Deusić SD. Electrokinetic properties of hydroxyapatite under flotation conditions. J Colloid Interface Sci 2009; 343:239-45. [PMID: 20018290 DOI: 10.1016/j.jcis.2009.11.024] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2009] [Revised: 11/03/2009] [Accepted: 11/10/2009] [Indexed: 12/15/2022]
Abstract
The effect of calcite supernatant, calcium, and carbonate ions on the hydroxyapatite (HA) zeta potential without and in the presence of sodium oleate (1x10(-4) mol L(-1)) was examined within the pH range from 4 to 12. The interpretation of results was based on the HA surface and oleate solution chemistry, and on some floatability tests. HA, with different positive and negative surface sites formed depending on its solubility and pH, had a negative zeta potential over the whole pH range. This mineral is not naturally floatable (flotation recovery, 5%<R<18%). The oleate ions (Ol(-)), present in a very low concentration in an acidic medium (pH from 4.8 to 6), chemisorb individually on HA surface centers [triple bond]Ca(+), [triple bond]HPO(4)Ca(+), and [triple bond]OH(2)(+), increasing the negative zeta potential of the mineral. Within the pH range from 7 to 9, the dominant oleate species Ol(-) ion and ion-molecule complex, H(Ol)(2)(-), adsorbed on HA by head groups toward the solid and associated due to chain-chain interaction in hemimicelles, made the HA surface with zeta potential about -22/-23 mV, and more floatable (R=80-100%) than in 4<pH<7 (R=15-35%) or in pH>9.3. The HA surface is less negatively charged in calcite supernatant than in water from pH 6.6 to 9.2 due to the adsorption on HA negative surface active centers ([triple bond]HPO(4)(-) and [triple bond]PO(4)(2-)) of the Ca(2+), and CaOH(+) ions (present in the calcite supernatant), producing more surface sites [triple bond]HPO(4)Ca(+), [triple bond]PO(4)Ca, [triple bond]HPO(4)CaOH, and [triple bond]PO(4)(-) CaOH, and new centers [triple bond]HPO(4)CaHCO(3) and [triple bond]PO(4)(-) CaHCO(3). In the presence of 1x10(-3) mol L(-1) CaCl(2), the HA sample has positive zeta potential, the same as calcite from the same deposit, up to IEP at pH 11.25. Carbonate ions (1x10(-3) mol L(-1) Na(2)CO(3)) do not affect the HA zeta potential. However, a possible process can be the ion-exchange reaction between bicarbonate (or carbonate) and some anion from the surface sites formed on HA. The obtained values of the HA zeta potential with the collector (1x10(-4) mol L(-1) Na-oleate) added into hydroxyapatite/calcite supernatant suspensions corroborate the weak chemisorption of Ol(-) and H(Ol)(2)(-). The likely processes in this system also are the ion-exchange reactions on [triple bond]HPO(4)CaOH and [triple bond]PO(4)(-) CaOH, [triple bond]HPO(4)CaHCO(3) and [triple bond]PO(4)(-) CaHCO(3) between oleate ion and surface hydroxyl and bicarbonate ions, surface and bulk precipitations of calcium oleate, Ca(Ol)(2), and the surface and bulk precipitations of Ca[H(Ol)(2)(-)](2) over the pH range from 7 to 9. Calcite supernatant does not influence natural floatability of the mineral. However, calcite supernatant depresses the hydroxyapatite flotation in the presence of 1x10(-4) mol L(-1) Na-oleate (pH 9, R approximately 50%), a likely result of the weak chemisorption due to the steric effect of heterogeneous HA surface formed in calcite supernatant, Ca(Ol)(2) and Ca[H(Ol)(2)(-)](2) surface and bulk precipitations.
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Affiliation(s)
- Dusica R Vucinić
- Faculty of Mining and Geology, Department of Mineral Processing, University of Belgrade, Belgrade, Serbia.
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Cárdenas M, Valle-Delgado JJ, Hamit J, Rutland MW, Arnebrant T. Interactions of hydroxyapatite surfaces: conditioning films of human whole saliva. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2008; 24:7262-7268. [PMID: 18547092 DOI: 10.1021/la800402s] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Hydroxyapatite is a very interesting material given that it is the main component in tooth enamel and because of its uses in bone implant applications. Therefore, not only the characterization of its surface is of high relevance but also designing reliable methods to study the interfacial properties of films adsorbed onto it. In this paper we apply the colloidal probe atomic force microscopy method to investigate the surface properties of commercially available hydroxyapatite surfaces (both microscopic particles and macroscopic discs) in terms of interfacial and frictional forces. In this way, we find that hydroxyapatite surfaces at physiological relevant conditions are slightly negatively charged. The surfaces were then exposed to human whole saliva, and the surface properties were re-evaluated. A thick film was formed that was very resistant to mechanical stress. The frictional measurements demonstrated that the film was indeed highly lubricating, supporting the argument that this system may prove to be a relevant model for evaluating dental and implant systems.
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Affiliation(s)
- Marité Cárdenas
- Biomedical Laboratory Science and Technology, Health and Society, Malmoe University, SE-20506 Malmoe, Sweden.
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Tõnsuaadu K, Viipsi K, Trikkel A. EDTA impact on Cd2+ migration in apatite-water system. JOURNAL OF HAZARDOUS MATERIALS 2008; 154:491-497. [PMID: 18054159 DOI: 10.1016/j.jhazmat.2007.10.051] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2007] [Revised: 10/15/2007] [Accepted: 10/16/2007] [Indexed: 05/25/2023]
Abstract
The impact factors on Cd sorption and desorption in aqueous solution on apatite were studied. Batch experiments were carried out using synthetic hydroxyapatite with Ca/P 1.44, 1.66 and 1.94 in Cd(NO3)2 and Cd(NO3)2-EDTA equimolar complex solutions in the pH range from 4 to 7. It was established that Cd sorption on apatite depends not only on apatite specific surface area but also on Ca/P mole ratio in apatite as well as on the presence of chelating compounds. Presence of EDTA in the solution decreases the amount of Cd bound. [CdEDTA]2- prevents chemical sorption of Cd2+ ions on apatite. EDTA considerably decreases the sorption capacity of apatite with Ca excess. Impact of EDTA is smaller for the stoichiometric apatite and for the apatite with calcium deficiency. Cd bound due to adsorption is more easily removed from apatite. Ca2+ ions increase and presence of EDTA in a solution cause total Cd desorption from apatite.
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Affiliation(s)
- Kaia Tõnsuaadu
- Tallinn University of Technology, Laboratory of Inorganic Materials, Ehitajate tee 5, 19086, Tallinn, Estonia.
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Jack KS, Vizcarra TG, Trau M. Characterization and surface properties of amino-acid-modified carbonate-containing hydroxyapatite particles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2007; 23:12233-12242. [PMID: 17963411 DOI: 10.1021/la701848c] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
The surface properties (nature, strength, and stability of interaction of functional groups) and bulk morphologies of a series of amino-acid-functionalized carbonate-containing hydroxyapatite (CHA) particles were investigated. It was found that the amino acids were both occluded in and presented on the surface of the CHA particles. Furthermore, their presence enhanced particle colloidal stability by retardation of Ostwald ripening and in some cases increasing the magnitude of the zeta-potential. Measurements of adsorption isotherms and zeta-potential titrations have shown that the amino-acid-surface interactions are weak and reversible at pH 9 and consistent with a model in which the carboxyl terminus interacts with calcium ions in the CHA lattice. Complexities in adsorption behavior are discussed in terms of different adsorption mechanisms that may be prevalent at different pHs.
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Affiliation(s)
- Kevin S Jack
- Centre for Nanotechnology and Biomaterials, Level 5 East, Australian Institute for Bioengineering and Nanotechnology, University of Queensland, St Lucia, QLD 4072, Australia
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Ostomel TA, Shi Q, Stoimenov PK, Stucky GD. Metal oxide surface charge mediated hemostasis. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2007; 23:11233-8. [PMID: 17892311 DOI: 10.1021/la701281t] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Blood coagulates faster upon contact with polar glasslike surfaces than on nonpolar plastic surfaces; this phenomenon is commonly termed the glass effect. However, the variable hemostatic response that we report here for contact-activated coagulation by different metal oxides, all of which are polar substrates, requires a refinement of this simple polarity model of how inorganic metal oxides activate the intrinsic pathway of blood coagulation. To our knowledge, the role of metal oxide surface charge as determined at the physiological pH and Ca2+ concentration of blood has not been previously investigated. We find that basic oxides with an isoelectric point above the pH of blood are anticoagulant while acidic oxides with an isoelectric point below the pH of blood are procoagulant. Using a thromboelastograph, we find that the onset time for coagulation and rate of coagulation post-initiation depend on both the sign and the magnitude of the initial surface charge density of the metal oxide. This work presents a useful strategy based on a quantifiable material parameter to select metal oxides to elicit a predictable and tunable biological response when they are in contact with blood.
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Affiliation(s)
- Todd A Ostomel
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, USA
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Bhattacharjee S, Swain SK, Sengupta DK, Singh BP. Effect of heat treatment of hydroxyapatite on its dispersibility in aqueous medium. Colloids Surf A Physicochem Eng Asp 2006. [DOI: 10.1016/j.colsurfa.2005.11.057] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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