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Adamska K, Voelkel A, Sandomierski M. Characterization of mesoporous aluminosilicate materials by means of inverse liquid chromatography. J Chromatogr A 2020; 1610:460544. [DOI: 10.1016/j.chroma.2019.460544] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 09/11/2019] [Accepted: 09/14/2019] [Indexed: 12/21/2022]
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2
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Ma Z, Zeng F, Wang J, Yang S, Liu C. Enhanced cell affinity of PHBHHx composite scaffold with polylactide-graft-hydroxyapatite as compatibilizer. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 80:472-483. [DOI: 10.1016/j.msec.2017.06.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Revised: 12/23/2016] [Accepted: 06/07/2017] [Indexed: 01/14/2023]
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3
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Lu S, McEnery MAP, Rogers BR, Wenke JC, Shimko D, Guelcher SA. Resorbable Nanocomposites with Bone-Like Strength and Enhanced Cellular Activity. J Mater Chem B 2017; 5:4198-4206. [PMID: 30101031 PMCID: PMC6086367 DOI: 10.1039/c7tb00657h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Bone cements for treatment of fractures at weight-bearing sites are subjected to dynamic physiological loading from daily activities. An ideal bone cement rapidly sets after injection, exhibits bone-like strength, stimulates osteogenic differentiation of endogenous cells, and resorbs at a rate aligned with patient biology. However, currently available materials fall short of these targeted properties. Nanocrystalline hydroxyapatite (nHA) enhances osteogenic differentiation, new bone formation, and osteoclast differentiation activity compared to amorphous or micron-scale crystalline hydroxyapatite. However, the brittle mechanical properties of nHA precludes its use in treatment of weight-bearing bone defects. In this study, we report settable nHA-poly(ester urethane) (PEUR) nanocomposites synthesized from nHA, lysine triisocyanate (LTI), and poly(caprolactone) triol via a solvent-free process. The nanocomposites are easily mixed and injected using a double-barrel syringe, exhibit mechanical properties exceeding those of conventional bone cements, enhance mineralization of osteoprogenitor cells in vitro, and undergo osteoclast-mediated degradation in vitro. This combination of properties cannot be achieved using other technologies, which underscores the potential of nHA-PEUR nanocomposites as a new approach for promoting bone healing at weight-bearing sites.
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Affiliation(s)
- S Lu
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, TN, 37235, USA
| | - M A P McEnery
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, 37235, USA
| | - B R Rogers
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, TN, 37235, USA
| | - J C Wenke
- Orthopaedic Task Area, U.S. Army Institute of Surgical Research, San Antonio, TX, USA
| | - D Shimko
- Medtronic Spine and Biologics, Memphis, TN, 38132, USA
| | - S A Guelcher
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, TN, 37235, USA
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, 37235, USA
- Center for Bone Biology, Vanderbilt University Medical Center, Nashville, TN, 37235, USA
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Lin X, Xie F, Ma X, Hao Y, Qin H, Long J. Fabrication and characterization of dendrimer-functionalized nano-hydroxyapatite and its application in dentin tubule occlusion. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2017; 28:846-863. [PMID: 28325103 DOI: 10.1080/09205063.2017.1308654] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Xuandong Lin
- Department of Endodontics, Stomatological Hospital, Guangxi Medical University, Nanning, China
| | - Fangfang Xie
- Department of Endodontics, Stomatological Hospital, Guangxi Medical University, Nanning, China
| | - Xueling Ma
- Department of Endodontics, Stomatological Hospital, Guangxi Medical University, Nanning, China
| | - Yuhong Hao
- Department of Endodontics, Stomatological Hospital, Guangxi Medical University, Nanning, China
| | - Hejia Qin
- Department of Endodontics, Stomatological Hospital, Guangxi Medical University, Nanning, China
| | - Jindong Long
- Department of Endodontics, Stomatological Hospital, Guangxi Medical University, Nanning, China
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Li Z, Cheng X, Shi L, He S, Gong L, Li C, Zhang H. Flammability and oxidation kinetics of hydrophobic silica aerogels. JOURNAL OF HAZARDOUS MATERIALS 2016; 320:350-358. [PMID: 27566928 DOI: 10.1016/j.jhazmat.2016.07.054] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2016] [Revised: 07/19/2016] [Accepted: 07/22/2016] [Indexed: 06/06/2023]
Abstract
Silica aerogels (SAs) present great application prospects especially on thermal insulation, but their flammability is usually ignored. A combined study on the combustion behaviors and oxidation kinetics of hydrophobic silica aerogels prepared by ambient pressure drying (SA-apd) and supercritical drying (SA-sd) was performed by employing cone calorimeter and thermal analysis. The whole combustion process for SAs could be divided into three stages in which a fire propagation phenomenon was observed with the radial propagation velocity of 6.6-8.3cms-1. Current investigations forcefully demonstrated that hydrophobic SAs were combustible and easy to flashover when exposed to a heat flux higher than 25kWm-2. Compared between the two SAs, the SA-sd owned a less fire risk with presenting a less fire hazard and a lower smoke toxicity than those of SA-apd. The oxidation kinetics by Ozawa-Flynn-Wall method revealed that SA-sd had larger apparent activation energies than those of SA-apd which conformed to the thermal stability analysis by TG-DSC. Furthermore, a two-step combustion mechanism was proposed to explain the combustion behaviors of SAs.
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Affiliation(s)
- Zhi Li
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei, Anhui 230027, P. R. China
| | - Xudong Cheng
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei, Anhui 230027, P. R. China.
| | - Long Shi
- Civil and Infrastructure Engineering Discipline, School of Engineering, RMIT University, GPO Box 2476, Melbourne VIC 3001, Australia
| | - Song He
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei, Anhui 230027, P. R. China
| | - Lunlun Gong
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei, Anhui 230027, P. R. China
| | - Congcong Li
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei, Anhui 230027, P. R. China
| | - Heping Zhang
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei, Anhui 230027, P. R. China.
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Kadlec K, Adamska K, Okulus Z, Voelkel A. Inverse liquid chromatography as a tool for characterisation of the surface layer of ceramic biomaterials. J Chromatogr A 2016; 1468:116-125. [DOI: 10.1016/j.chroma.2016.09.032] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Revised: 09/09/2016] [Accepted: 09/14/2016] [Indexed: 02/07/2023]
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Adamska K, Kadlec K, Voelkel A. Application of Inverse Liquid Chromatography for Surface Characterization of Biomaterials. Chromatographia 2016; 79:473-480. [PMID: 27069275 PMCID: PMC4803825 DOI: 10.1007/s10337-016-3049-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Revised: 01/19/2016] [Accepted: 02/08/2016] [Indexed: 10/28/2022]
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Kadlec K, Adamska K, Voelkel A. Characterization of ceramic hydroxyapatite surface by inverse liquid chromatography in aquatic systems. Talanta 2016; 147:44-9. [DOI: 10.1016/j.talanta.2015.09.044] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Revised: 09/14/2015] [Accepted: 09/16/2015] [Indexed: 11/16/2022]
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Mustafi D, Fan X, Peng B, Foxley S, Palgen J, Newstead GM. Using MRI to detect and differentiate calcium oxalate and calcium hydroxyapatite crystals in air-bubble-free phantom. Phys Med 2015; 31:1075-1079. [PMID: 26392170 DOI: 10.1016/j.ejmp.2015.07.141] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2015] [Revised: 07/02/2015] [Accepted: 07/13/2015] [Indexed: 11/28/2022] Open
Abstract
Calcium oxalate (CaOX) crystals and calcium hydroxyapatite (CaHA) crystals were commonly associated with breast benign and malignant lesions, respectively. In this research, CaOX (n = 6) and CaHA (n = 6) crystals in air-bubble-free agarose phantom were studied and characterized by using MRI at 9.4 T scanner. Calcium micro-crystals, with sizes that ranged from 200 to 500 µm, were made with either 99% pure CaOX or CaHA powder and embedded in agar to mimic the dimensions and calcium content of breast microcalcifications in vivo. MRI data were acquired with high spatial resolution T2-weighted (T2W) images and gradient echo images with five different echo times (TEs). The crystal areas were determined by setting the threshold relative to agarose signal. The ratio of crystal areas was calculated by the measurements from gradient echo images divided by T2W images. Then the ratios as a function of TE were fitted with the radical function. The results showed that the blooming artifacts due to magnetic susceptibility between agar and CaHA crystals were more than twice as large as the susceptibility in CaOX crystals (p < 0.05). In addition, larger bright rings were observed on gradient echo images around CaHA crystals compared to CaOX crystals. Our results suggest that MRI may provide useful information regarding breast microcalcifications by evaluating the apparent area of crystal ratios obtained between gradient echo and T2W images.
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Affiliation(s)
- Devkumar Mustafi
- Department of Radiology, The University of Chicago, Chicago, IL, USA.
| | - Xiaobing Fan
- Department of Radiology, The University of Chicago, Chicago, IL, USA
| | - Bo Peng
- Department of Radiology, The University of Chicago, Chicago, IL, USA
| | - Sean Foxley
- Department of Radiology, The University of Chicago, Chicago, IL, USA
| | - Jeremy Palgen
- Department of Radiology, The University of Chicago, Chicago, IL, USA
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Pramanik N, Imae T. Fabrication and characterization of dendrimer-functionalized mesoporous hydroxyapatite. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:14018-14027. [PMID: 22946771 DOI: 10.1021/la302066e] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
A successful synthesis of mesostructured hydroxyapatite (HAp) using cetyltrimethylammonium bromide and poly(amido amine) dendrimer porogens has been reported. A comparative study of physicochemical properties has also been performed. The formation of a single-phase hydroxyapatite crystal in synthesized HAp particles with an aspect ratio of 2.3 was revealed. The formation of the mesostructural nature of HAp was proven with a specific surface area (56-63 m(2)/g) and a certain pore size (4.7-5.5 nm), although there were significant differences between particles from surfactant micelle and dendrimer porogens. In addition, the surface modification of mesoporous HAp particles was carried out using poly(amido amine) dendrimer. The content and thickness of the dendrimer coating on particle surfaces were highly dependent on the pH. At pH 9 or greater, the coating thickness corresponded to at least a double layer of dendrimer, but it decreased sharply with decreasing pH from 9 to 6, in agreement with the protonation of amine groups in the dendrimer, indicating the strong interaction of nonionic dendrimer with HAp. The developed dendrimer-functionalized mesoporous hydroxyapatite materials may be applicable in biocomposite material and/or bone tissue engineering.
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Affiliation(s)
- Nabakumar Pramanik
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
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Mingalev PG, Kolyagin YG, Lisichkin GV. Reactivity of a phosphonate layer grafted onto a surface of dispersed hydroxyapatite. COLLOID JOURNAL 2012. [DOI: 10.1134/s1061933x12040114] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Mingalyov PG, Kolyagin YG, Lisichkin GV. Solid-state NMR spectroscopic study of the structure of grafted layers of phosphonic acid ester-modified hydroxyapatite. COLLOID JOURNAL 2011. [DOI: 10.1134/s1061933x11010121] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Tanaka H, Uchida K. PREPARATION AND SURFACE CHARACTERIZATION OF CALCIUM HYDROXYAPATITE GRAFTING OF PHOSPHOETHANOLAMINE. ACTA ACUST UNITED AC 2010. [DOI: 10.3363/prb.24.38] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Supová M. Problem of hydroxyapatite dispersion in polymer matrices: a review. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2009; 20:1201-1213. [PMID: 19225871 DOI: 10.1007/s10856-009-3696-2] [Citation(s) in RCA: 104] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2008] [Accepted: 01/21/2009] [Indexed: 05/27/2023]
Abstract
This review summarizes recent work on manufacturing biocomposites suitable for bone tissue engineering. There is a great need to engineer multi-phase (i.e. composite) materials that combine the advantages exhibited by each component of the material, with a structure and composition similar to that of natural bone. The discussion concentrates on the preparation of nanocomposites containing hydroxyapatite particles (one of the most widely used bioceramics materials) with polymer matrices. Special attention is paid to the preparation of nanocomposites with individual (non-aggregated) nanoparticles because this is a key problem in nanotechnology industrialization. Controlling the mixing between so two dissimilar phases is a critical challenge in the design of these inorganic-organic systems. Several approaches that may be applied to overcome this problem will be described in this review.
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Affiliation(s)
- Monika Supová
- Department of Composites and Carbon Materials, Institute of Rock Structure and Mechanics, Prague, Czech Republic.
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Spiridonov VS, Mingalev PG, Lisichkin GV, Sklyarenko AV, Satarova DE, Kurochkina VB. Synthesis of prolonged-release drugs for osteoplasty that are based on chemically modified calcium phosphates. COLLOID JOURNAL 2006. [DOI: 10.1134/s1061933x06060159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Tanaka H, Futaoka M, Hino R. Surface modification of calcium hydroxyapatite with pyrophosphoric acid. J Colloid Interface Sci 2004; 269:358-63. [PMID: 14654396 DOI: 10.1016/j.jcis.2003.07.039] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The surface of synthetic colloidal calcium hydroxyapatite (Ca(10)(PO(4))(6)(OH)(2); CaHap) was treated with pyrophosphoric acid (H(4)P(2)O(7); PP) in acetone and the materials were characterized by XRD, thermal analysis, N(2) adsorption, TEM, and FTIR. No remarkable change in XRD patterns or in particle morphology by the modification was observed. The additional amount of PO(4) of CaHap was increased with an increase in PP concentration. The Ca/P molar ratio of CaHap was decreased from 1.62 to 1.35 by the modification. IR results indicated that the PP reacts with surface P-OH groups of CaHap to form additional surface P-OH groups as follows: surface P-OH+H(4)P(2)O(7)--> surface P-O-PO(OH)(2) + H(3)PO(4). When the modified CaHap with Ca/P molar ratio less than 1.50 was treated at 850 degrees C in air, the materials transformed into beta-Ca(3)(PO(4))(2).
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Affiliation(s)
- Hidekazu Tanaka
- Department of Material Science, Faculty of Science and Engineering, Shimane University, 1060 Nishikawatsu, Matsue, 690-8504, Shimane, Japan.
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D'Andrea SC, Swaminathan Iyer K, Luzinov I, Fadeev AY. Self-assembled monolayers of organophosphonic acids supported on teeth. Colloids Surf B Biointerfaces 2003. [DOI: 10.1016/s0927-7765(03)00161-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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