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Pulsed plasma surface modified omeprazole microparticles for delayed release application. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2021.102905] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Calcium phosphate powders synthesized from CaCO 3 and CaO of natural origin using mechanical activation in different media combined with solid-state interaction. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 118:111333. [PMID: 33254965 DOI: 10.1016/j.msec.2020.111333] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2018] [Revised: 07/28/2020] [Accepted: 08/01/2020] [Indexed: 11/24/2022]
Abstract
The highly pure and crystalline calcium carbonate (CaCO3) and calcium oxide (CaO) with small amounts of As, Cd, Hg, and Pb were prepared by calcinating shells of a golden apple snail. Solid-state reaction and mechanical activation between the CaCO3 and CaO from calcined golden apple snail shells and dibasic calcium phosphate dihydrate (CaHPO4•2H2O, DCPD) were performed to develop calcium phosphate powders. The effects of the milling media used on the mechanical activation were examined. A solid-state reaction of manually mixed CaCO3 or CaO with DCPD powders at a temperature of 1100 °C produced mostly β-tricalcium phosphate (β-TCP). Hydroxyapatite (HAp) with a small quantity of β-TCP could be produced from a mixed CaCO3 + DCPD powder using dry and wet mechanical activations with distilled water, alcohol and acetone and from a mixed CaO + DCPD powder using dry mechanical activation combined with a solid-state reaction at a temperature of 1100 °C. A phase change of milled powders to β-TCP was clearly observed from a wet mechanical activation of CaO + DCPD powder with distilled water or alcohol in a solid-state reaction. The thermal instability of HAp powders from a combined mechanical activation with solid-state reaction of CaCO3 or CaO and DCPD powders could result from two factors. The first is that the pollution was released from the balls and pot mill materials during the mechanical process. Another factor is a reduced level of calcium in the CaO + DCPD mixed powder due to a reaction between CaO and water or alcohol during mechanical milling.
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Biggemann J, Müller P, Köllner D, Simon S, Hoffmann P, Heik P, Lee JH, Fey T. Hierarchical Surface Texturing of Hydroxyapatite Ceramics: Influence on the Adhesive Bonding Strength of Polymeric Polycaprolactone. J Funct Biomater 2020; 11:jfb11040073. [PMID: 33023048 PMCID: PMC7712268 DOI: 10.3390/jfb11040073] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 09/29/2020] [Accepted: 09/30/2020] [Indexed: 11/16/2022] Open
Abstract
The tailored manipulation of ceramic surfaces gained recent interest to optimize the performance and lifetime of composite materials used as implants. In this work, a hierarchical surface texturing of hydroxyapatite (HAp) ceramics was developed to improve the poor adhesive bonding strength in hydroxyapatite and polycaprolactone (HAp/PCL) composites. Four different types of periodic surface morphologies (grooves, cylindric pits, linear waves and Gaussian hills) were realized by a ceramic micro-transfer molding technique in the submillimeter range. A subsequent surface roughening and functionalization on a micron to nanometer scale was obtained by two different etchings with hydrochloric and tartaric acid. An ensuing silane coupling with 3-aminopropyltriethoxysilane (APTES) enhanced the chemical adhesion between the HAp surface and PCL on the nanometer scale by the formation of dipole-dipole interactions and covalent bonds. The adhesive bonding strengths of the individual and combined surface texturings were investigated by performing single-lap compressive shear tests. All individual texturing types (macro, micro and nano) showed significantly improved HAp/PCL interface strengths compared to the non-textured HAp reference, based on an enhanced mechanical, physical and chemical adhesion. The independent effect mechanisms allow the deliberately hierarchical combination of all texturing types without negative influences. The hierarchical surface-textured HAp showed a 6.5 times higher adhesive bonding strength (7.7 ± 1.5 MPa) than the non-textured reference, proving that surface texturing is an attractive method to optimize the component adhesion in composites for potential medical implants.
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Affiliation(s)
- Jonas Biggemann
- Department of Materials Science (Institute of Glass and Ceramics), University of Erlangen-Nuernberg, Martensstr. 5, D-91058 Erlangen, Germany; (P.M.); (D.K.); (S.S.); (P.H.); (P.H.)
- Correspondence: (J.B.); (T.F.); Tel.: +49-9131-8527561 (J.B.); +49-9131-8527546 (T.F.)
| | - Philipp Müller
- Department of Materials Science (Institute of Glass and Ceramics), University of Erlangen-Nuernberg, Martensstr. 5, D-91058 Erlangen, Germany; (P.M.); (D.K.); (S.S.); (P.H.); (P.H.)
| | - David Köllner
- Department of Materials Science (Institute of Glass and Ceramics), University of Erlangen-Nuernberg, Martensstr. 5, D-91058 Erlangen, Germany; (P.M.); (D.K.); (S.S.); (P.H.); (P.H.)
| | - Swantje Simon
- Department of Materials Science (Institute of Glass and Ceramics), University of Erlangen-Nuernberg, Martensstr. 5, D-91058 Erlangen, Germany; (P.M.); (D.K.); (S.S.); (P.H.); (P.H.)
| | - Patrizia Hoffmann
- Department of Materials Science (Institute of Glass and Ceramics), University of Erlangen-Nuernberg, Martensstr. 5, D-91058 Erlangen, Germany; (P.M.); (D.K.); (S.S.); (P.H.); (P.H.)
| | - Paula Heik
- Department of Materials Science (Institute of Glass and Ceramics), University of Erlangen-Nuernberg, Martensstr. 5, D-91058 Erlangen, Germany; (P.M.); (D.K.); (S.S.); (P.H.); (P.H.)
| | - Jung Heon Lee
- School of Advanced Materials Science & Engineering, Sungkyunkwan University (SKKU), Suwon 16149, Korea;
| | - Tobias Fey
- Department of Materials Science (Institute of Glass and Ceramics), University of Erlangen-Nuernberg, Martensstr. 5, D-91058 Erlangen, Germany; (P.M.); (D.K.); (S.S.); (P.H.); (P.H.)
- Frontier Research Institute for Materials Science, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan
- Correspondence: (J.B.); (T.F.); Tel.: +49-9131-8527561 (J.B.); +49-9131-8527546 (T.F.)
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Harun W, Kamariah M, Muhamad N, Ghani S, Ahmad F, Mohamed Z. A review of powder additive manufacturing processes for metallic biomaterials. POWDER TECHNOL 2018. [DOI: 10.1016/j.powtec.2017.12.058] [Citation(s) in RCA: 110] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Sonamuthu J, Samayanan S, Jeyaraman AR, Murugesan B, Krishnan B, Mahalingam S. Influences of ionic liquid and temperature on the tailorable surface morphology of F-apatite nanocomposites for enhancing biological abilities for orthopedic implantation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017. [PMID: 29519448 DOI: 10.1016/j.msec.2017.11.035] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
This report has approached for the green synthesis of morphological controlled novel metal-doped fluorinated apatite/polymeric nanocomposites. The synthesized nanocomposites have investigated for hard tissue engineering and bone substitute applications. The selected fluoro ionic liquid explored the dual performances as fluorine precursor and as a soft template for the morphological development of apatite nanocomposite synthesis. The structural and surface studies (XRD, FTIR, FE-SEM, EDS, AFM, HR-TEM & SAED) confirmed the crystalline and morphological changes of synthesized fluorohydroxyapatite nanostructures at two different reaction temperatures. The fluorinated apatite nanocomposites doped with silver for metal-doped composites, which have effective antibacterial efficacy and favorable biocompatibility. The silver-doped nanocomposites showed excellent antibacterial ability against Staphylococcus aureus and Escherichia coli bacterial pathogens with the uniform release of silver and fluorine ions. These antibacterial performances have systematically tested by the quantitative and qualitative methods. The rod-like fluorinated apatite nanocrystals promote cell adhesion and viability of human osteosarcoma (MG-63) cell lines and these studies compared with the sheet-like apatite nanocomposites. This type of biomedical apatite materials may be a promising material for orthopedic implant and regeneration applications.
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Affiliation(s)
- Jegatheeswaran Sonamuthu
- Advanced Green Chemistry Lab, Department of Industrial Chemistry, School of Chemical Sciences, Alagappa University, Karaikudi 630003, Tamil Nadu, India
| | - Selvam Samayanan
- Laser and Sensor Application Laboratory, Pusan National University, Busan 609735, South Korea
| | - Anandha Raj Jeyaraman
- Functional Materials Division, CSIR - Central Electrochemical Research Institute, Karaikudi 630006, Tamilnadu, India
| | - Balaji Murugesan
- Advanced Green Chemistry Lab, Department of Industrial Chemistry, School of Chemical Sciences, Alagappa University, Karaikudi 630003, Tamil Nadu, India
| | - Bama Krishnan
- Advanced Green Chemistry Lab, Department of Industrial Chemistry, School of Chemical Sciences, Alagappa University, Karaikudi 630003, Tamil Nadu, India
| | - Sundrarajan Mahalingam
- Advanced Green Chemistry Lab, Department of Industrial Chemistry, School of Chemical Sciences, Alagappa University, Karaikudi 630003, Tamil Nadu, India.
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Alghunaim A, Kirdponpattara S, Newby BMZ. Techniques for determining contact angle and wettability of powders. POWDER TECHNOL 2016. [DOI: 10.1016/j.powtec.2015.10.002] [Citation(s) in RCA: 168] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Frances C, Le Bolay N. Special issue on innovative processes and materials. POWDER TECHNOL 2014. [DOI: 10.1016/j.powtec.2014.01.066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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