101
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Monodisperse magnetic composite poly(glycidyl methacrylate)/La0.75Sr0.25MnO3 microspheres by the dispersion polymerization. POLYMER 2010. [DOI: 10.1016/j.polymer.2010.04.055] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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102
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Gijs MAM, Lacharme F, Lehmann U. Microfluidic applications of magnetic particles for biological analysis and catalysis. Chem Rev 2010; 110:1518-63. [PMID: 19961177 DOI: 10.1021/cr9001929] [Citation(s) in RCA: 368] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Martin A M Gijs
- Laboratory of Microsystems, Ecole Polytechnique Fédérale de Lausanne, 1015 Lausanne EPFL, Switzerland.
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103
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Yang C, Shao Q, He J, Jiang B. Preparation of monodisperse magnetic polymer microspheres by swelling and thermolysis technique. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:5179-5183. [PMID: 19908847 DOI: 10.1021/la903659z] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
A novel process for the preparation of monodisperse magnetic polymer microspheres by uniquely combining swelling and thermolysis technique was reported. The monodisperse polystyrene microspheres were first prepared by dispersion polymerization and swelled in chloroform. Then, ferric oleate was dispersed in chloroform as a precursor and impregnated into the swollen polymer microspheres. Subsequently, the iron oxide nanoparticles were formed within the polymer matrix by thermal decomposition of ferric oleate. The morphology, inner structure, and magnetic properties of the magnetic polymer microspheres were studied with a field emission scanning electron microscope (SEM), transmission electron microscope (TEM), and superconducting quantum interference device (SQUID) magnetometer. The results showed that the average diameter of the magnetic polymer microspheres was 5.1 microm with a standard deviation of 0.106, and the magnetic polymer microspheres with saturation magnetization of 12.6 emu/g exhibited distinct superparamagnetic characteristics at room temperature. More interestingly, the magnetite nanoparticles with a spinel structure are evenly distributed over the whole area of the polymer microspheres. These magnetic polymer microspheres have potential applications in biotechnology.
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Affiliation(s)
- Chengli Yang
- Nano-Micro Materials Research Center, Key Laboratory of Chemical Genomics, School of Chemical Biology & Biotechnology, Peking University Shenzhen Graduate School, Shenzhen 518055, China.
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104
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Katagiri K, Nakamura M, Koumoto K. Magnetoresponsive smart capsules formed with polyelectrolytes, lipid bilayers and magnetic nanoparticles. ACS APPLIED MATERIALS & INTERFACES 2010; 2:768-73. [PMID: 20356279 DOI: 10.1021/am900784a] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Magnetoresponsive smart capsules formed with polyelectrolytes, lipid bilayers and magnetic nanoparticles were fabricated by a colloid-templating technique. Melamine-formaldehyde core particles with polyelectrolyte multilayer shell were prepared by layer-by-layer assembly. Magnetite (Fe(3)O(4)) nanoparticles were selectively deposited on the capsular surface by aqueous solution deposition using Pd catalysts. Hollow capsules were obtained by the removal of the melamine formaldehyde core particles. Vibrating sample magnetometer (VSM) measurement of the capsules revealed the ferromagnetic behavior of deposited Fe(3)O(4) nanoparticles. Alternating magnetic field irradiation generates heat in the capsular dispersion. Additional lipid bilayer coating was carried out on the obtained hollow capsules. Dye molecules were loaded by exploiting the temperature-dependence of the lipid membrane permeability. An encapsulated dye was released on-demand by irradiation with an alternating magnetic field, due to a phase transition in the lipid membrane, induced by heating of the magnetic nanoparticles. The magnetically induced release is attributed to the phase transition of the lipid membrane, caused by heat of Fe(3)O(4) nanoparticles under magnetic stimuli, and not to rupture of the capsules.
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Affiliation(s)
- Kiyofumi Katagiri
- Department of Applied Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan.
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105
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Synthesis and characterization of uniform polyepoxide micrometer sized particles by redox graft polymerization of glycidyl methacylate on oxidized polystyrene and polydivinylbenzene microspheres for enzyme immobilization. POLYMER 2010. [DOI: 10.1016/j.polymer.2010.01.015] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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106
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Réthoré G, Pandit A. Use of templates to fabricate nanoscale spherical structures for defined architectural control. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2010; 6:488-498. [PMID: 20077516 DOI: 10.1002/smll.200901253] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Architectural design of biomaterial structures is essential to reach the full potential of the materials' chemical and biological properties. Clinically, these properties depend on the targeted applications of delivery, such as tissue regeneration, imaging, or cancer. To get an efficient material for biological applications, key properties are needed, such as degradability, low toxicity, cell specificity, relative efficiency, and capability of delivering multiple molecules. In recent years, significant progress has been made through either the design of the material itself (synthetic or natural polymers, dendrimers, crosslinking) or the fabrication technique (nozzle reactor, emulsion, and template). The combination of these materials and techniques results in a large variety of biomaterials that have varied shape and physico-chemical and biological properties. Nevertheless, these inherent properties are not sufficient and interest in discovering and developing new techniques that present these biomaterials in different light is now under focus. A useful strategy to prepare biomaterials with unique and novel architectures is through the use of templates that have defined geometrical features. This holds great promise, especially for the development of hollow structures, such as spheres. The nanoscale structural design of biomaterials via the use of templates and their potential clinical applications are discussed. In addition, the conceptual hurdles that must be overcome to produce applications that are clinically relevant are examined.
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Affiliation(s)
- Gildas Réthoré
- Network of Excellence for Functional Biomaterials (NFB), NUI Galway, Galway (Ireland)
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107
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Zhang Q, Han Y, Wang W, Song T, Chang J. A theoretical and experimental investigation of the size distribution of polystyrene microspheres by seeded polymerization. J Colloid Interface Sci 2010; 342:62-7. [DOI: 10.1016/j.jcis.2009.10.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2009] [Revised: 09/30/2009] [Accepted: 10/01/2009] [Indexed: 10/20/2022]
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108
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Chang Z, Serra CA, Bouquey M, Kraus I, Li S, Köhler JM. Multiscale materials from microcontinuous-flow synthesis: ZnO and Au nanoparticle-filled uniform and homogeneous polymer microbeads. NANOTECHNOLOGY 2010; 21:015605. [PMID: 19946165 DOI: 10.1088/0957-4484/21/1/015605] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Tri(propylene glycol) diacrylate (TPGDA) was found to be an excellent monomer for the stabilization and dispersion of inorganic nanoparticles. Uniform nano-Au/poly(TPGDA) and nano-ZnO/poly(TPGDA) composite microbeads were synthesized in situ using a designed axisymmetric capillary-based flow-focusing microfluidic device without any additional surfactant or coupling agent. Using the designed mixing-enhanced microfluidic device, homogeneous nano-inorganic/polymer composites with a high content of nanoparticles were obtained. Morphologies of the composites were characterized by SEM, TEM, surface microscopy, dark-field microscopy and internal fluorescence.
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Affiliation(s)
- Zhenqi Chang
- Laboratoire d'Ingénierie des Polymères pour les Hautes Technologies (LIPHT)-EAc 4379- Convention CNRS, Ecole Européenne de Chimie, Polymères et Matériaux (ECPM), Université de Strasbourg (UdS), 25 rue Becquerel, F-67087 Strasbourg, France
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109
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Organic/Inorganic Composite Latexes: The Marriage of Emulsion Polymerization and Inorganic Chemistry. HYBRID LATEX PARTICLES 2010. [DOI: 10.1007/12_2010_60] [Citation(s) in RCA: 116] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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110
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Oh J, Lee JH, Koo JC, Choi HR, Lee Y, Kim T, Luong ND, Nam JD. Graphene oxide porous paper from amine-functionalized poly(glycidyl methacrylate)/graphene oxide core-shell microspheres. ACTA ACUST UNITED AC 2010. [DOI: 10.1039/c0jm00107d] [Citation(s) in RCA: 137] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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111
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Amara D, Grinblat J, Margel S. Synthesis of magnetic iron and iron oxide micrometre-sized composite particles of narrow size distribution by annealing iron salts entrapped within uniform porous poly(divinylbenzene) microspheres. ACTA ACUST UNITED AC 2010. [DOI: 10.1039/b923500k] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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112
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Ji C, Shi J, Sun C, Qu R, Wang C, Sun Y. Synthesis and characterization of crosslinked phenolic-typed beads by dispersion polycondensation of 2-phenoxyethanol with formaldehyde. J Appl Polym Sci 2010. [DOI: 10.1002/app.31948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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113
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Nakamura M, Katagiri K, Koumoto K. Preparation of hybrid hollow capsules formed with Fe3O4 and polyelectrolytes via the layer-by-layer assembly and the aqueous solution process. J Colloid Interface Sci 2010; 341:64-8. [DOI: 10.1016/j.jcis.2009.09.014] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2009] [Revised: 09/01/2009] [Accepted: 09/11/2009] [Indexed: 10/20/2022]
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114
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Lee S, Cho SK, Yoon JW, Choi SH, Chun JH, Eum CH, Kwen H. REMOVAL OF AGGREGATES FROM MICRON-SIZED POLYMETHYL METHACRYLATE (PMMA) LATEX BEADS USING FULL FEED DEPLETION MODE OF GRAVITATIONAL SPLITT FRACTIONATION (FFD-GSF). J LIQ CHROMATOGR R T 2009. [DOI: 10.1080/10826070903427064] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Seungho Lee
- a Department of Chemistry , Hannam University , Daejeon , Korea
| | - Sung Kwang Cho
- a Department of Chemistry , Hannam University , Daejeon , Korea
| | - Jin Woo Yoon
- a Department of Chemistry , Hannam University , Daejeon , Korea
| | - Seong-Ho Choi
- a Department of Chemistry , Hannam University , Daejeon , Korea
| | - Jong-Han Chun
- b Department of Applied Chemistry , Hanbat University , Daejeon , Korea
| | - Chul Hun Eum
- c Korea Institute of Geosciences and Mineral Resources , Daejeon , Korea
| | - HaiDoo Kwen
- a Department of Chemistry , Hannam University , Daejeon , Korea
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115
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YAN Q, BAI YW, MENG Z, YANG WT. SYNTHESIS OF NARROW DISPERSE CROSSLINKED POLY(DIVINYLBENZENE) MICROSPHERES IN ACETIC ACID via PRECIPITATION POLYMERIZATION. ACTA POLYM SIN 2009. [DOI: 10.3724/sp.j.1105.2007.01102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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116
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Lee KC, Her JH, Kim KJ. Effects of Reaction Parameters on Particle Size, Molecular Weight, and Kinetics for Dispersion Polymerization ofn-Butyl Acrylate. INTERNATIONAL JOURNAL OF POLYMER ANALYSIS AND CHARACTERIZATION 2009. [DOI: 10.1080/10236660903225460] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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117
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Gu W, Chen G, Stenzel MH. Synthesis of glyco-microspheres via a thiol-ene coupling reaction. ACTA ACUST UNITED AC 2009. [DOI: 10.1002/pola.23615] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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118
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Wi Y, Lee K, Lee BH, Choe S. Ab initio dispersion polymerization of styrene in the presence of the poly(methacrylic acid) macro-RAFT agent. Macromol Res 2009. [DOI: 10.1007/bf03218610] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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119
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Wang C, Zhang C, Li Y, Chen Y, Tong Z. Facile fabrication of nanocomposite microspheres with polymer cores and magnetic shells by Pickering suspension polymerization. REACT FUNCT POLYM 2009. [DOI: 10.1016/j.reactfunctpolym.2009.06.003] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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120
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121
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Ebert F, Dillmann P, Maret G, Keim P. The experimental realization of a two-dimensional colloidal model system. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2009; 80:083902. [PMID: 19725662 DOI: 10.1063/1.3188948] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
We present the technical details of an experimental method to realize a model system for two-dimensional (2D) phase transitions and the glass transition. The system consists of several hundred thousand colloidal superparamagnetic particles confined by gravity at a flat water-air interface of a pending water droplet where they are subjected to Brownian motion. The dipolar pair potential and, therefore, the system temperature are not only known precisely but also directly and instantaneously controllable via an external magnetic field H. In the case of a one-component system of monodisperse particles the system can crystallize upon application of H whereas in a two component system it undergoes a glass transition. Up to 10,000 particles are observed by video microscopy and image processing provides their trajectories on all relative length and time scales. The position of the interface is actively regulated thereby reducing surface fluctuations to less than 1 microm and the setup inclination is controlled to an accuracy of +/-1 murad. The sample quality being necessary to enable the experimental investigation of the 2D melting scenario, 2D crystallization, and the 2D glass transition, is discussed.
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Affiliation(s)
- F Ebert
- Fachbereich Physik, University of Konstanz, Box M621, 78457 Konstanz, Germany
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122
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Lee SM, Bae IA, Park JH, Kim TD, Choi SH. Preparation of Affinity Column Based on ZR 4+Ion forPhosphoproteins Isolation. JOURNAL OF THE KOREAN CHEMICAL SOCIETY-DAEHAN HWAHAK HOE JEE 2009. [DOI: 10.5012/jkcs.2009.53.3.279] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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123
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Unsal E, Uguzdogan E, Patir S, Tuncel A. Ion-exchanger synthesis using reversible addition-fragmentation chain transfer polymerization. J Sep Sci 2009; 32:1791-800. [DOI: 10.1002/jssc.200900003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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124
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Guo N, Wu D, Pan X, Lu M. Magnetic polymer microspheres with azidocarbonyl groups: Synthesis, characterization and application in protein immobilization. J Appl Polym Sci 2009. [DOI: 10.1002/app.29755] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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125
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Tomás A, Gil MH, Bordado JC, Gonçalves P, Rodrigues P. Preparation of poly(vinyl chloride) latexes using a dual surfactant system: The effect in the particle size distribution. J Appl Polym Sci 2009. [DOI: 10.1002/app.29509] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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126
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Functionalised magnetic microspheres with hydrophilic properties for molecular diagnostic applications. Food Res Int 2009. [DOI: 10.1016/j.foodres.2009.01.020] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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127
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Wang C, Wang L, Yang W. Preparation and characterization of functional inorganic/organic composite microspheres via electrostatic interaction. J Colloid Interface Sci 2009; 333:749-56. [DOI: 10.1016/j.jcis.2009.02.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2008] [Revised: 01/19/2009] [Accepted: 02/04/2009] [Indexed: 11/15/2022]
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128
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A facile preparation of microparticles from sulfonated polyester nanoparticles via emulsion–aggregation process. Colloids Surf A Physicochem Eng Asp 2009. [DOI: 10.1016/j.colsurfa.2009.02.037] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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129
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Preparation and characterization of core-shell polystyrene/polychloromethylstyrene and hollow polychloromethylstyrene micrometer-sized particles of narrow-size distribution. Colloid Polym Sci 2009. [DOI: 10.1007/s00396-009-2041-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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130
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Zhang C, Wei Q. Influence of poly(methyl methacrylate) particles with different initial temperature rising ramps on size distribution in dispersion polymerization. J Appl Polym Sci 2009. [DOI: 10.1002/app.29461] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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131
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Qian H, Lin Z, Xu H, Chen M. The efficient and specific isolation of the antibodies from human serum by thiophilic paramagnetic polymer nanospheres. Biotechnol Prog 2009; 25:376-83. [DOI: 10.1002/btpr.105] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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132
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Yan Q, Zhao T, Bai Y, Zhang F, Yang W. Precipitation Polymerization in Acetic Acid: Study of the Solvent Effect on the Morphology of Poly(divinylbenzene). J Phys Chem B 2009; 113:3008-14. [DOI: 10.1021/jp808974x] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Qing Yan
- State Key Laboratory of Chemical Resource Engineering, Beijing 100029, People’s Republic of China, and College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, People’s Republic of China
| | - Tongyang Zhao
- State Key Laboratory of Chemical Resource Engineering, Beijing 100029, People’s Republic of China, and College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, People’s Republic of China
| | - Yaowen Bai
- State Key Laboratory of Chemical Resource Engineering, Beijing 100029, People’s Republic of China, and College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, People’s Republic of China
| | - Fen Zhang
- State Key Laboratory of Chemical Resource Engineering, Beijing 100029, People’s Republic of China, and College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, People’s Republic of China
| | - Wantai Yang
- State Key Laboratory of Chemical Resource Engineering, Beijing 100029, People’s Republic of China, and College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, People’s Republic of China
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133
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Omer-Mizrahi M, Margel S. Synthesis and characterization of magnetic and non-magnetic core–shell polyepoxide micrometer-sized particles of narrow size distribution. J Colloid Interface Sci 2009; 329:228-34. [DOI: 10.1016/j.jcis.2008.09.047] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2008] [Revised: 09/14/2008] [Accepted: 09/16/2008] [Indexed: 10/21/2022]
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134
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The effective and specific isolation of antibodies from human serum by using thiophilic paramagnetic polymer beads. Colloids Surf B Biointerfaces 2008; 67:224-9. [DOI: 10.1016/j.colsurfb.2008.08.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2008] [Revised: 08/26/2008] [Accepted: 08/29/2008] [Indexed: 11/24/2022]
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135
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Synthesis of functional magnetic porous SrFe12O19/P(St-DVB-MAA) microspheres by a novel suspension polymerization. OPEN CHEM 2008. [DOI: 10.2478/s11532-008-0055-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
AbstractIn this study, a novel and effective suspension polymerization has been employed to prepare functional magnetic porous SrFe12O19/P(St-DVB-MAA) microspheres in the presence of bilayer surfactants (sodium dodecyl benzene sulfonate (SDBS) and oleic acid (OA)) coated on micro-size magnetic SrFe12O19. This was achieved by pre-polymerizing the organic phase, which contained co-monomers, porogens and treated magnetic particles, at 65°C for 0.5 h under ultrasound conditions. Aqueous solutions containing a dispersion agent were then added to effect suspension polymerization. Scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), thermogravimetric analysis (TGA) and magnetic property measurement system (MPMS) were used to characterize the functional magnetic porous microspheres. The results show that the microparticles are well shaped with a uniform size distribution of about 0.5 ∼ 0.7 mm and the surfaces of the microspheres have many micro-pores with an average diameter of 0.533 µm. There are carboxyl groups (−COOH) on the surface of the microspheres to the extent of 0.65 mmol g−1, as determined by conductometric titration. According to the XRD spectra, iron oxide consists mainly of SrFe12O19 which reveals hexahedral structure. The content of magnetic SrFe12O19 reaches 17.81% (by mass), and the microspheres have good heat resistance. The magnetic porous microspheres are ferromagnetic with high residual magnetization and coercivity, 21.59 emu g−1 and 4.13 kOe, respectively. The saturation magnetisation is around 42.85 emu g−1.
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136
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Mahdavian AR, Ashjari M, Mobarakeh HS. Nanocomposite particles with core-shell morphology. I. Preparation and characterization of Fe3O4-poly(butyl acrylate-styrene) particles via miniemulsion polymerization. J Appl Polym Sci 2008. [DOI: 10.1002/app.28729] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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137
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Ha M, Lee K, Choe S. Crosslinkable functional moiety for the formation of highly crosslinked stable microspheres in the precipitation polymerization. POLYMER 2008. [DOI: 10.1016/j.polymer.2008.08.013] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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138
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ŠponarovÁ D, Horák D. Poly(N,N-diethylacrylamide) microspheres by dispersion polymerization. ACTA ACUST UNITED AC 2008. [DOI: 10.1002/pola.22936] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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139
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140
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Lee KC, Lee SY. Preparation of highly cross-linked, monodisperse poly(methyl methacrylate) microspheres by dispersion polymerization; Part II. Semi-continuous processes. Macromol Res 2008. [DOI: 10.1007/bf03218520] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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141
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Yan Q, Bai Y, Meng Z, Yang W. Precipitation Polymerization in Acetic Acid: Synthesis of Monodisperse Cross-Linked Poly(divinylbenzene) Microspheres. J Phys Chem B 2008; 112:6914-22. [DOI: 10.1021/jp711324a] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Qing Yan
- State Key Laboratory of Chemical Resource Engineering, Beijing and College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Yaowen Bai
- State Key Laboratory of Chemical Resource Engineering, Beijing and College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Zhe Meng
- State Key Laboratory of Chemical Resource Engineering, Beijing and College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Wantai Yang
- State Key Laboratory of Chemical Resource Engineering, Beijing and College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
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142
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Ding X, Han D, Wang Z, Xu X, Niu L, Zhang Q. Micelle-assisted synthesis of polyaniline/magnetite nanorods by in situ self-assembly process. J Colloid Interface Sci 2008; 320:341-5. [DOI: 10.1016/j.jcis.2008.01.004] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2007] [Revised: 01/03/2008] [Accepted: 01/05/2008] [Indexed: 11/29/2022]
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143
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Lei Z, Li Y, Wei X. A facile two-step modifying process for preparation of poly(SStNa)-grafted Fe3O4/SiO2 particles. J SOLID STATE CHEM 2008. [DOI: 10.1016/j.jssc.2007.12.004] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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144
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Kim JW, Suh KD. Monodisperse polymer particles synthesized by seeded polymerization techniques. J IND ENG CHEM 2008. [DOI: 10.1016/j.jiec.2007.06.001] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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145
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Synthesis and characterization of poly(divinylbenzene)-coated magnetic iron oxide nanoparticles as precursor for the formation of air-stable carbon-coated iron crystalline nanoparticles. J Colloid Interface Sci 2008; 317:101-14. [DOI: 10.1016/j.jcis.2007.09.014] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2007] [Revised: 08/27/2007] [Accepted: 09/10/2007] [Indexed: 11/22/2022]
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146
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Baruch-Sharon S, Margel S. Synthesis by a single-step swelling process and characterization of micrometer-sized polychloromethylstyrene/poly(butyl methacrylate) hemispherical composite particles of narrow size distribution. J Appl Polym Sci 2008. [DOI: 10.1002/app.27385] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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147
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Alam MA, Miah MAJ, Ahmad H. Synthesis and characterization of dual-responsive micrometer-sized core-shell composite polymer particles. POLYM ADVAN TECHNOL 2008. [DOI: 10.1002/pat.993] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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148
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Partouche E, Margel S. Redoxgraft polymerization of vinylic monomers on ozone-activated poly(styrene-divinylbenzene) microspheres of narrow size distribution. NEW J CHEM 2008. [DOI: 10.1039/b710584c] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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149
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Chen J, Zeng Z, Yang J, Chen Y. Photoinitiated dispersion polymerization of methyl methacrylate: A quick approach to prepare polymer microspheres with narrow size distribution. ACTA ACUST UNITED AC 2007. [DOI: 10.1002/pola.22473] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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150
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Shen SL, Wu W, Guo K, Meng H, Chen JF. A novel process to synthesize magnetic hollow silica microspheres. Colloids Surf A Physicochem Eng Asp 2007. [DOI: 10.1016/j.colsurfa.2007.06.002] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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