1
|
Singh S, Basu H, Bassan MKT, Singhal RK. Thiol functionalised silica microsphere loaded polymeric hydrogel: Development of a novel hybrid sorbent for removal of lead and cadmium. CHEMOSPHERE 2022; 286:131659. [PMID: 34346342 DOI: 10.1016/j.chemosphere.2021.131659] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 07/11/2021] [Accepted: 07/21/2021] [Indexed: 06/13/2023]
Abstract
Current study presents a facile synthesis method for thiol functionalised silica microsphere loaded polymeric hydrogel. Silica microspheres were synthesised as core shell particles by sol-gel method followed by hydrolysis and condensation reaction to form the silica core. The silica was functionalised with thiol and the functionalised silica microsphere was subsequently impregnated into polymeric alginate matrix to form thiol functionalised silica microspheres loaded alginate hydrogel beads (SH-SiO2MS-Ca-Alg). The developed components and final products were characterised by BET, FTIR, DLS, SEM-EDS. The developed SH-SiO2MS-Ca-Alg hydrogel beads were used for efficient removal of Pb and Cd [72-97 % for Pb; 60-85 % for Cd at concentration range of 0.1-100 μg mL-1 and optimum pH 5-7] from aquatic medium. The sorption capacities evaluated for Pb and Cd from Langmuir isotherm were 127.99 and 70.68 mgg-1 respectively. Uptake kinetics, isotherm, thermodynamics, intraparticle diffusion studies were carried out for both Pb (II) and Cd (II). Mechanism of Pb (II) and Cd (II) removal by SH-SiO2MS-Ca-Alg hydrogel hybrid beads was proposed with the help of zeta potentials of SH-SiO2MS at different pH along with fraction diagram of Pb and Cd.
Collapse
Affiliation(s)
- Shweta Singh
- Analytical Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - Hirakendu Basu
- Analytical Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India.
| | - M K T Bassan
- Analytical Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - Rakesh Kumar Singhal
- Analytical Chemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India.
| |
Collapse
|
2
|
Marmey P, Lebaz N, Eissa M, Delair T, Elaissari A. Polystyrene latex particles bearing primary amine groups via soap‐free emulsion polymerization. POLYM INT 2020. [DOI: 10.1002/pi.6060] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Pascal Marmey
- Unité mixte CNRS‐BioMérieux Ecole Normale Supérieure de Lyon Lyon France
| | - Noureddine Lebaz
- Univ Lyon, University Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007 Villeurbanne France
| | - Mohamed Eissa
- Univ Lyon, University Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007 Villeurbanne France
- Polymers and Pigments Department National Research Centre Giza Egypt
| | - Thierry Delair
- Univ Lyon, University Claude Bernard Lyon 1, CNRS, IMP, UMR 5223 Villeurbanne France
| | - Abdelhamid Elaissari
- Univ Lyon, University Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007 Villeurbanne France
| |
Collapse
|
3
|
Wald S, Simon J, Dietz JP, Wurm FR, Landfester K. Polyglycerol Surfmers and Surfactants for Direct and Inverse Miniemulsion. Macromol Biosci 2017; 17. [DOI: 10.1002/mabi.201700070] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Revised: 04/11/2017] [Indexed: 01/05/2023]
Affiliation(s)
- Sarah Wald
- Max Planck Institute for Polymer Research; Ackermannweg 10 55128 Mainz Germany
| | - Johanna Simon
- Max Planck Institute for Polymer Research; Ackermannweg 10 55128 Mainz Germany
| | - Jule P. Dietz
- Max Planck Institute for Polymer Research; Ackermannweg 10 55128 Mainz Germany
| | - Frederik R. Wurm
- Max Planck Institute for Polymer Research; Ackermannweg 10 55128 Mainz Germany
| | | |
Collapse
|
4
|
Zhang F, Ren H, Dou J, Tong G, Deng Y. Cellulose Nanofibril Based-Aerogel Microreactors: A High Efficiency and Easy Recoverable W/O/W Membrane Separation System. Sci Rep 2017; 7:40096. [PMID: 28059153 PMCID: PMC5216329 DOI: 10.1038/srep40096] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Accepted: 12/01/2016] [Indexed: 12/15/2022] Open
Abstract
Hereby we report a novel cellulose nanofirbril aerogel-based W/O/W microreactor system that can be used for fast and high efficient molecule or ions extraction and separation. The ultra-light cellulose nanofibril based aerogel microspheres with high porous structure and water storage capacity were prepared. The aerogel microspheres that were saturated with stripping solution were dispersed in an oil phase to form a stable water-in-oil (W/O) suspension. This suspension was then dispersed in large amount of external waste water to form W/O/W microreactor system. Similar to a conventional emulsion liquid membrane (ELM), the molecules or ions in external water can quickly transport to the internal water phase. However, the microreactor is also significantly different from traditional ELM: the water saturated nanocellulose cellulose aerogel microspheres can be easily removed by filtration or centrifugation after extraction reaction. The condensed materials in the filtrated aerogel particles can be squeezed and washed out and aerogel microspheres can be reused. This novel process overcomes the key barrier step of demulsification in traditional ELM process. Our experimental indicates the novel microreactor was able to extract 93% phenol and 82% Cu2+ from external water phase in a few minutes, suggesting its great potential for industrial applications.
Collapse
Affiliation(s)
- Fang Zhang
- Jiangsu Provincial Key Lab of Pulp and Paper Science and Technology, Nanjing Forestry University, 159 LongPan Road, NanJing, JiangSu Province 210037, P.R. China.,School of Chemical &Biomolecular Engineering and RBI, Georgia Institute of Technology, 500 10th Street N.W., Atlanta, Georgia 30332-0620, United States
| | - Hao Ren
- Jiangsu Provincial Key Lab of Pulp and Paper Science and Technology, Nanjing Forestry University, 159 LongPan Road, NanJing, JiangSu Province 210037, P.R. China
| | - Jing Dou
- Jiangsu Provincial Key Lab of Pulp and Paper Science and Technology, Nanjing Forestry University, 159 LongPan Road, NanJing, JiangSu Province 210037, P.R. China
| | - Guolin Tong
- Jiangsu Provincial Key Lab of Pulp and Paper Science and Technology, Nanjing Forestry University, 159 LongPan Road, NanJing, JiangSu Province 210037, P.R. China
| | - Yulin Deng
- School of Chemical &Biomolecular Engineering and RBI, Georgia Institute of Technology, 500 10th Street N.W., Atlanta, Georgia 30332-0620, United States
| |
Collapse
|
5
|
Lipase immobilization on epoxy-activated poly(vinyl acetate-acrylamide) microspheres. Colloids Surf B Biointerfaces 2015; 129:206-10. [DOI: 10.1016/j.colsurfb.2015.03.056] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Revised: 03/25/2015] [Accepted: 03/26/2015] [Indexed: 02/02/2023]
|
6
|
Cai H, Sharma S, Liu W, Mu W, Liu W, Zhang X, Deng Y. Aerogel microspheres from natural cellulose nanofibrils and their application as cell culture scaffold. Biomacromolecules 2014; 15:2540-7. [PMID: 24894125 DOI: 10.1021/bm5003976] [Citation(s) in RCA: 103] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We demonstrated that ultralight pure natural aerogel microspheres can be fabricated using cellulose nanofibrials (CNF) directly. Experimentally, the CNF aqueous gel droplets, produced by spraying and atomizing through a steel nozzle, were collected into liquid nitrogen for instant freezing followed by freeze-drying. The aerogel microspheres are highly porous with bulk density as low as 0.0018 g cm(-3). The pore size of the cellulose aeogel microspheres ranges from nano- to macrometers. The unique ultralight and high porous structure ensured high moisture (~90 g g(-1)) and water uptake capacity (~100 g g(-1)) of the aerogel microspheres. Covalent cross-linking between the native nanofibrils and cross-linkers made the aerogel microspheres very stable even in a harsh environment. The present study also confirmed this kind of aerogel microspheres from native cellulose fibers can be used as cell culture scaffold.
Collapse
Affiliation(s)
- Hongli Cai
- College of Quartermaster Technology, Jilin University , Changchun, Jilin Province 130062, China
| | | | | | | | | | | | | |
Collapse
|
7
|
Thomas A, Müller SS, Frey H. Beyond Poly(ethylene glycol): Linear Polyglycerol as a Multifunctional Polyether for Biomedical and Pharmaceutical Applications. Biomacromolecules 2014; 15:1935-54. [DOI: 10.1021/bm5002608] [Citation(s) in RCA: 170] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Anja Thomas
- Institute
of Organic Chemistry, Johannes Gutenberg-University Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Sophie S. Müller
- Institute
of Organic Chemistry, Johannes Gutenberg-University Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
- Graduate School Materials Science in Mainz, Staudingerweg 9, 55128 Mainz, Germany
| | - Holger Frey
- Institute
of Organic Chemistry, Johannes Gutenberg-University Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| |
Collapse
|
8
|
Podkościelna B, Kołodyńska D. A new type of cation-exchange polymeric microspheres with pendant methylenethiol groups. POLYM ADVAN TECHNOL 2013. [DOI: 10.1002/pat.3155] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Beata Podkościelna
- Department of Polymer Chemistry, Faculty of Chemistry; Maria Curie-Sklodowska University; Maria Curie Skłodowska Sq. 5 20-031 Lublin Poland
| | - Dorota Kołodyńska
- Department of Inorganic Chemistry, Faculty of Chemistry; Maria Curie-Sklodowska University; Maria Curie Skłodowska Sq. 5 20-031 Lublin Poland
| |
Collapse
|
9
|
Behrendt JM, Nagel D, Chundoo E, Alexander LM, Dupin D, Hine AV, Bradley M, Sutherland AJ. Synthesis and characterization of dual-functionalized core-shell fluorescent microspheres for bioconjugation and cellular delivery. PLoS One 2013; 8:e50713. [PMID: 23526923 PMCID: PMC3602537 DOI: 10.1371/journal.pone.0050713] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2012] [Accepted: 10/23/2012] [Indexed: 01/15/2023] Open
Abstract
The efficient transport of micron-sized beads into cells, via a non-endocytosis mediated mechanism, has only recently been described. As such there is considerable scope for optimization and exploitation of this procedure to enable imaging and sensing applications to be realized. Herein, we report the design, synthesis and characterization of fluorescent microsphere-based cellular delivery agents that can also carry biological cargoes. These core-shell polymer microspheres possess two distinct chemical environments; the core is hydrophobic and can be labeled with fluorescent dye, to permit visual tracking of the microsphere during and after cellular delivery, whilst the outer shell renders the external surfaces of the microspheres hydrophilic, thus facilitating both bioconjugation and cellular compatibility. Cross-linked core particles were prepared in a dispersion polymerization reaction employing styrene, divinylbenzene and a thiol-functionalized co-monomer. These core particles were then shelled in a seeded emulsion polymerization reaction, employing styrene, divinylbenzene and methacrylic acid, to generate orthogonally functionalized core-shell microspheres which were internally labeled via the core thiol moieties through reaction with a thiol reactive dye (DY630-maleimide). Following internal labeling, bioconjugation of green fluorescent protein (GFP) to their carboxyl-functionalized surfaces was successfully accomplished using standard coupling protocols. The resultant dual-labeled microspheres were visualized by both of the fully resolvable fluorescence emissions of their cores (DY630) and shells (GFP). In vitro cellular uptake of these microspheres by HeLa cells was demonstrated conventionally by fluorescence-based flow cytometry, whilst MTT assays demonstrated that 92% of HeLa cells remained viable after uptake. Due to their size and surface functionalities, these far-red-labeled microspheres are ideal candidates for in vitro, cellular delivery of proteins.
Collapse
Affiliation(s)
- Jonathan M. Behrendt
- Chemical Engineering & Applied Chemistry, School of Engineering & Applied Science, Aston University, Birmingham, United Kingdom
| | - David Nagel
- School of Life & Health Sciences, Aston University, Birmingham, United Kingdom
| | - Evita Chundoo
- Chemical Engineering & Applied Chemistry, School of Engineering & Applied Science, Aston University, Birmingham, United Kingdom
| | - Lois M. Alexander
- School of Chemistry, Edinburgh University, Edinburgh, United Kingdom
| | - Damien Dupin
- Department of Chemistry, Dainton Building, the University of Sheffield, Brook Hill, Sheffield, United Kingdom
| | - Anna V. Hine
- School of Life & Health Sciences, Aston University, Birmingham, United Kingdom
| | - Mark Bradley
- School of Chemistry, Edinburgh University, Edinburgh, United Kingdom
| | - Andrew J. Sutherland
- Chemical Engineering & Applied Chemistry, School of Engineering & Applied Science, Aston University, Birmingham, United Kingdom
- * E-mail:
| |
Collapse
|
10
|
Fractional statistical theory of adsorption applied to protein adsorption. J Colloid Interface Sci 2013; 390:183-8. [DOI: 10.1016/j.jcis.2012.09.054] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2012] [Revised: 08/23/2012] [Accepted: 09/24/2012] [Indexed: 01/20/2023]
|
11
|
Kenari HS, Imani M, Nodehi A. Full factorial design-of-experiments for preparation of crosslinked dextran microspheres. J Appl Polym Sci 2012. [DOI: 10.1002/app.37983] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
12
|
Li P, Hu X, Song G, Chu PK, Xu Z. Facile preparation of cationic P (St-BA-METAC) copolymer nanoparticles and the investigation of their interaction with bovine serum albumin. J Appl Polym Sci 2011. [DOI: 10.1002/app.35676] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
13
|
Xu X, Zhang J, Jin Z, Cheng J. Preparation of phenolic microspheres in water/“water” system. POLYM ADVAN TECHNOL 2011. [DOI: 10.1002/pat.2010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Xu Xu
- Key Laboratory of Carbon Fiber and Functional Polymers; Beijing University of Chemical Technology; Beijing; China
| | - Junying Zhang
- Key Laboratory of Carbon Fiber and Functional Polymers; Beijing University of Chemical Technology; Beijing; China
| | - Zichao Jin
- Key Laboratory of Carbon Fiber and Functional Polymers; Beijing University of Chemical Technology; Beijing; China
| | - Jue Cheng
- Key Laboratory of Carbon Fiber and Functional Polymers; Beijing University of Chemical Technology; Beijing; China
| |
Collapse
|
14
|
Zhang DH, Zhang YF, Zhi GY, Xie YL. Effect of hydrophobic/hydrophilic characteristics of magnetic microspheres on the immobilization of BSA. Colloids Surf B Biointerfaces 2011; 82:302-6. [DOI: 10.1016/j.colsurfb.2010.09.001] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2010] [Revised: 08/27/2010] [Accepted: 09/01/2010] [Indexed: 10/19/2022]
|
15
|
Cao C, Yang K, Wu F, Wei X, Lu L, Cai Y. Thermally Induced Swellability and Acid-Liable Dynamic Properties of Microgels of Copolymers Based on PEGMA and Aldehyde-Functionalized Monomer. Macromolecules 2010. [DOI: 10.1021/ma1017549] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Chaowei Cao
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, Key Laboratory of Advanced Functional Polymeric Materials of College of Hunan Province, Key Laboratory of Polymeric Materials & Application Technology of Hunan Province, College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105, China
| | - Ke Yang
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, Key Laboratory of Advanced Functional Polymeric Materials of College of Hunan Province, Key Laboratory of Polymeric Materials & Application Technology of Hunan Province, College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105, China
| | - Fen Wu
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, Key Laboratory of Advanced Functional Polymeric Materials of College of Hunan Province, Key Laboratory of Polymeric Materials & Application Technology of Hunan Province, College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105, China
| | - Xiangqian Wei
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, Key Laboratory of Advanced Functional Polymeric Materials of College of Hunan Province, Key Laboratory of Polymeric Materials & Application Technology of Hunan Province, College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105, China
| | - Lican Lu
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, Key Laboratory of Advanced Functional Polymeric Materials of College of Hunan Province, Key Laboratory of Polymeric Materials & Application Technology of Hunan Province, College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105, China
| | - Yuanli Cai
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, Key Laboratory of Advanced Functional Polymeric Materials of College of Hunan Province, Key Laboratory of Polymeric Materials & Application Technology of Hunan Province, College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105, China
| |
Collapse
|
16
|
Slomkowski S, Basinska T. Polymer Nano- and Microparticle Based Systems for Medical Diagnostics. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/masy.200900084] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
17
|
REVERSIBLE ADDITION-FRAGMENTATION TRANSFER POLYMERIZATION OF POLYMERS CONTAINING BOTH FORMYL AND <I>β</I>-PINENE FUNCTIONAL GROUPS. ACTA POLYM SIN 2010. [DOI: 10.3724/sp.j.1105.2010.09364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
18
|
Xiao ZP, Yang KM, Liang H, Lu J. Synthesis of magnetic, reactive, and thermoresponsive Fe3O4nanoparticles via surface-initiated RAFT copolymerization ofN-isopropylacrylamide and acrolein. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/pola.23752] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
|
19
|
Alexander LM, Pernagallo S, Livigni A, Sánchez-Martín RM, Brickman JM, Bradley M. Investigation of microsphere-mediated cellular delivery by chemical, microscopic and gene expression analysis. MOLECULAR BIOSYSTEMS 2009; 6:399-409. [PMID: 20094660 DOI: 10.1039/b914428e] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Amino functionalized cross-linked polystyrene microspheres of well defined sizes (0.2-2 mum) have been prepared and shown to be efficient and controllable delivery devices, capable of transporting anything from small dye molecules to bulky proteins into cells. However, the specific mechanism of cellular entry is largely unknown and widely variant from study to study. As such, chemical, biological and microscopic methods are used to elucidate the mechanism of cellular uptake for polystyrene microspheres of 0.2, 0.5 and 2 mum in mouse melanoma cells. Uptake is found to be wholly unreliant upon energetic processes, while lysosomal and endosomal tracking agents failed to show co-localisation with lysosomes/endosomes, suggesting a non-endocytic uptake pathway. To further explore the consequences of microsphere uptake, gene expression profiling is used to determine if there is a transcriptional response to "beadfection" in both murine and human cells. None of the common transcriptional responses to enhanced endocytosis are observed in beadfected cells, further supporting a non-endocytic uptake mechanism. Furthermore, the microspheres are noted to have a limited interaction with cells at a transcriptional level, supporting them as a non-toxic delivery vehicle.
Collapse
Affiliation(s)
- Lois M Alexander
- Chemical Biology Section, School of Chemistry, University of Edinburgh, West Mains Road, Edinburgh, UK
| | | | | | | | | | | |
Collapse
|
20
|
Song S, Zhang W, Hu Z, Zhang Z. Monodisperse micrometer-size carboxyl-functionalized polystyrene particles obtained by two-stage radiation-induced dispersion polymerization. Colloids Surf A Physicochem Eng Asp 2009. [DOI: 10.1016/j.colsurfa.2009.07.019] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
21
|
Tunc Y, Ulubayram K. Production of highly crosslinked microspheres by the precipitation polymerization of 2-(diethylamino)ethyl methacrylate with two or three functional crosslinkers. J Appl Polym Sci 2009. [DOI: 10.1002/app.29390] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
22
|
Basinska T, Slomkowski S, Kazmierski S, Chehimi MM. Properties of poly(styrene/alpha-tert-butoxy-omega-vinylbenzyl-polyglycidol) microspheres suspended in water. Effect of sodium chloride and temperature on particle diameters and electrophoretic mobility. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2008; 24:8465-8472. [PMID: 18630979 DOI: 10.1021/la800836t] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Hydrodynamic and electrophoretic properties of core-shell poly(styrene/alpha- tert-butoxy-omega-vinylbenzyl-polyglycidol) (P(S/PGL)) microspheres suspended in water are described. The microspheres were obtained by surfactant-free emulsion copolymerization of styrene and alpha- tert-butoxy-omega-vinylbenzyl-polyglycidol macromonomer ( M n = 2800, M w/ M n = 1.05). The process yielded microspheres with number average diameter D n = 270 nm and with low diameter dispersity index D w/ D n = 1.01. Shells of P(S/PGL) microspheres were enriched in polyglycidol. Molar fraction of polyglycidol monomeric units in the shells (determined by X-ray photoelectron spectroscopy) was equal to 0.34, which is much higher than the average molar fraction of polyglycidol monomeric units in whole particles of 0.048. Influences of NaCl concentration and temperature on P(S/PGL) microsphere diameters and on their electrophoretic mobility were investigated. It was found that hydrodynamic diameter of P(S/PGL) microspheres, determined by photon correlation spectroscopy, decreased significantly when temperature did exceed a certain value (transition temperature, T t). It has been found that the decrease is more pronounced for higher concentrations of NaCl in the medium. For microspheres suspended in 10 (-1) M NaCl, the hydrodynamic diameter decreased by 8% whereas for the same particles in pure water the diameter decreased by 5.2%. The process of shrinkage was fully reversible. Values of T t for P(S/PGL) microspheres were lower for higher concentrations of NaCl. Adjustment of salt concentration allowed controlling T t in a range from 44.4 to 49.9 degrees C. 13C NMR relaxation time measurements (T 1) for carbon atoms in polyglycidol macromonomer revealed that T 1 did increase with increasing temperature (in temperature range from 25 to 75 degrees C) indicating higher motion of chains at higher temperature. Addition of NaCl did not induce a substantial change of T 1 in the mentioned temperature range. The swelling-deswelling properties of P(S/PGL) microspheres' interfacial layer affected adsorption of P(S/PGL) particles on modified with (3-aminopropyl)triethoxysilane mica. It was shown that the deposition of P(S/PGL) microspheres at 25 degrees C on mica led to formation of two-dimensional crystal-shape assemblies, whereas at 60 degrees C (far above T t = 49.8 degrees C in H2O) the microspheres were randomly adsorbed without formation of colloidal crystal assemblies.
Collapse
Affiliation(s)
- Teresa Basinska
- Center of Molecular and Macromolecular Studies, Polish Academy of Sciences, ul. Sienkiewicza 112, Lodz, Poland.
| | | | | | | |
Collapse
|
23
|
Rossi NAA, Zou Y, Scott MD, Kizhakkedathu JN. RAFT Synthesis of Acrylic Copolymers Containing Poly(ethylene glycol) and Dioxolane Functional Groups: Toward Well-Defined Aldehyde Containing Copolymers for Bioconjugation. Macromolecules 2008. [DOI: 10.1021/ma800606k] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Nicholas A. A. Rossi
- Centre for Blood Research and the Department of Pathology and Laboratory Medicine, and, Canadian Blood Services, Life Sciences Centre, University of British Columbia, Vancouver, BC V6T 1Z3, Canada
| | - Yuquan Zou
- Centre for Blood Research and the Department of Pathology and Laboratory Medicine, and, Canadian Blood Services, Life Sciences Centre, University of British Columbia, Vancouver, BC V6T 1Z3, Canada
| | - Mark D. Scott
- Centre for Blood Research and the Department of Pathology and Laboratory Medicine, and, Canadian Blood Services, Life Sciences Centre, University of British Columbia, Vancouver, BC V6T 1Z3, Canada
| | - Jayachandran N. Kizhakkedathu
- Centre for Blood Research and the Department of Pathology and Laboratory Medicine, and, Canadian Blood Services, Life Sciences Centre, University of British Columbia, Vancouver, BC V6T 1Z3, Canada
| |
Collapse
|
24
|
Zhang X, Shen S, Fan L. Uniform Polystyrene Particles by Dispersion Polymerization in Different Dispersion Medium. Polym Bull (Berl) 2008. [DOI: 10.1007/s00289-008-0922-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
25
|
Xiao NY, Li AL, Liang H, Lu J. A Well-Defined Novel Aldehyde-Functionalized Glycopolymer: Synthesis, Micelle Formation, and Its Protein Immobilization. Macromolecules 2008. [DOI: 10.1021/ma702510n] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Nai-Yu Xiao
- Department of Polymer and Materials Science, School of Chemistry and Chemical Engineering, SunYat-sen (Zhongshan) University, Guangzhou 510275, China
| | - An-Long Li
- Department of Polymer and Materials Science, School of Chemistry and Chemical Engineering, SunYat-sen (Zhongshan) University, Guangzhou 510275, China
| | - Hui Liang
- Department of Polymer and Materials Science, School of Chemistry and Chemical Engineering, SunYat-sen (Zhongshan) University, Guangzhou 510275, China
| | - Jiang Lu
- Department of Polymer and Materials Science, School of Chemistry and Chemical Engineering, SunYat-sen (Zhongshan) University, Guangzhou 510275, China
| |
Collapse
|
26
|
Hou X, Liu B, Deng X, Zhang B, Yan J. Monodisperse polystyrene microspheres by dispersion copolymerization of styrene and other vinyl comonomers: characterization and protein adsorption properties. J Biomed Mater Res A 2007; 83:280-9. [PMID: 17415761 DOI: 10.1002/jbm.a.31229] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Dispersion polymerization is a very attractive method for preparing micron-size monodisperse polymeric microspheres. The applications of microspheres have been greatly extended by using comonomers. In the present study, five kinds of polystyrene microspheres of 4-6 microm in diameters bearing different surface functional groups were synthesized by copolymerization of styrene and various vinyl comonomers. Their surface physicochemical characteristics were examined, including average particle size and size distribution, concentration of surface functional groups, as well as hydrophobicity. Concentration of FT-IR spectra of different samples were also discussed. The effects of microspheres' surface physicochemical properties on the isotherms of adsorption and chemisorption of BSA were determined. The results show that microspheres bearing different surface function groups have different capacity of protein adsorption. Besides, since the protein adsorption behaviors were more complex than the ideal adsorption model, the isotherms could not fit Freundlich model very well. Possible reasons were discussed. Knowledge gained from these results may be utilized for rational design of carriers of receptors and antibodies used in solid-phase immunoassay, especially Scintillation proximity assay in High-throughput Screening.
Collapse
Affiliation(s)
- Xiaohui Hou
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Renminnan Road 9, Chengdu 610041, People's Republic of China
| | | | | | | | | |
Collapse
|
27
|
Deepa P, Jayakannan M. Solvent-induced self-organization approach for polymeric architectures of micropores, hexagons and spheres based on polyurethanes prepared via novel melt transurethane methodology. ACTA ACUST UNITED AC 2007. [DOI: 10.1002/pola.22058] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
28
|
Shi M, Li AL, Liang H, Lu J. Reversible Addition−Fragmentation Transfer Polymerization of a Novel Monomer Containing Both Aldehyde and Ferrocene Functional Groups. Macromolecules 2007. [DOI: 10.1021/ma062577s] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mao Shi
- Department of Polymer and Materials Science, School of Chemistry and Chemical Engineering, Sun Yat-sen (Zhongshan) University, Guangzhou 510275, China
| | - An-Long Li
- Department of Polymer and Materials Science, School of Chemistry and Chemical Engineering, Sun Yat-sen (Zhongshan) University, Guangzhou 510275, China
| | - Hui Liang
- Department of Polymer and Materials Science, School of Chemistry and Chemical Engineering, Sun Yat-sen (Zhongshan) University, Guangzhou 510275, China
| | - Jiang Lu
- Department of Polymer and Materials Science, School of Chemistry and Chemical Engineering, Sun Yat-sen (Zhongshan) University, Guangzhou 510275, China
| |
Collapse
|
29
|
Wei Q, Li B, Li C, Wang J, Wang W, Yang X. PVP-capped silver nanoparticles as catalysts for polymerization of alkylsilanes to siloxane composite microspheres. ACTA ACUST UNITED AC 2006. [DOI: 10.1039/b608643h] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
30
|
Zeo U, Tarabukina E, Budtova T. Kinetics of shear-induced gel deswelling/solvent release. J Control Release 2005; 108:73-83. [PMID: 16126296 DOI: 10.1016/j.jconrel.2005.07.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2005] [Revised: 07/12/2005] [Accepted: 07/18/2005] [Indexed: 11/21/2022]
Abstract
The kinetics of shear-induced deswelling of gel particles based on synthetic (sodium polyacrylate) and natural (alginate) polymers was studied by rheo-optical technique. A swollen spherical gel particle of 100+/-50 microm diameter was placed in silicone oil and the evolution of the gel size as a function of time and shear rate was monitored. Different aqueous polymer solutions were used as synthetic gel solvent: polyvinylpyrrolidone, hydroxypropyl cellulose and glucose-based polymer. The interfacial tension (gel solvent)/(silicone oil), gel degree of swelling, solvent quality and viscosity are the main parameters influencing the kinetics of shear-induced gel deswelling. The kinetics of gel volume loss was approximated by a modified Weibull equation.
Collapse
Affiliation(s)
- Undina Zeo
- Ecole des Mines de Paris, Centre de Mise en Forme des Matériaux, UMR CNRS/Ecole des Mines de Paris 7635, BP 207, 06904 Sophia-Antipolis, France
| | | | | |
Collapse
|
31
|
Wu M, Lin Z, Schäferling M, Dürkop A, Wolfbeis OS. Fluorescence imaging of the activity of glucose oxidase using a hydrogen-peroxide-sensitive europium probe. Anal Biochem 2005; 340:66-73. [PMID: 15802131 DOI: 10.1016/j.ab.2005.01.050] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2004] [Indexed: 11/30/2022]
Abstract
A method for optical imaging of the activity of glucose oxidase (GOx) using a fluorescent europium(III) tetracycline probe for hydrogen peroxide is presented. A decay time in the microsecond range and the large Stokes shift of 210 nm of the probe facilitate intensity-based, time-resolved, and decay-time-based imaging of glucose oxidase. Four methods for imaging the activity of GOx were compared, and rapid lifetime determination imaging was found to be the best in giving a linear range from 0.32 to 2.7 m Unit/mL. The detection limit is 0.32 m Unit/mL (1.7 ng mL(-1)) which is similar to that of the time-resolved (gated) imaging using a microtiterplate reader. Fluorescent imaging of the activity of GOx is considered to be a useful tool for GOx-based immunoassays with potential for high-throughput screening, immobilization studies, and biosensor array technologies.
Collapse
Affiliation(s)
- Meng Wu
- Institute of Analytical Chemistry, Chemo- and Biosensors, University of Regensburg, D-93040 Regensburg, Germany
| | | | | | | | | |
Collapse
|
32
|
Basinska T, Wisniewska M, Chmiela M. Principle of a New Immunoassay Based on Electrophoretic Mobility of Poly(styrene/?-tert-butoxy-?-vinylbenzyl-polyglycidol) Microspheres: Application for the Determination ofHelicobacter pylori IgG in Blood Serum. Macromol Biosci 2005; 5:70-7. [PMID: 15635718 DOI: 10.1002/mabi.200400112] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The principle of a novel latex diagnostic test for the determination of antibodies against Helicobacter pylori in blood sera is described. The test is based on the measurement of the electrophoretic mobility of the microspheres with immobilized H. pylori antigens. The electrophoretic mobility of these microspheres depends on the concentration of the antibodies against H. pylori in suspending medium. Particles with hydrophilic polyglycidol in the surface layer were used for the test. The microspheres were obtained by an emulsifier-free emulsion copolymerization of styrene and alpha-tert-butoxy-omega-vinylbenzyl-polyglycidol macromonomer (D(n) = 220 nm, diameter polydispersity factor D(w)//D(n) = 1.02). Activation of polyglycidol hydroxyl groups with cyanuric chloride allowed for covalent immobilization of H. pylori antigens. The fraction of H. pylori not specifically adsorbed onto the microspheres was negligible. Changes of the electrophoretic mobility of the microspheres with the surface concentration of the covalently immobilized H. pylori antigens Gamma = (1.6 +/- 0.3) . 10(-3) g m(-2) were suitable for the detection of the antibodies in the sera of patients with titer in the range (determined by the indirect ELISA test) from 1:500 to 1:32 000.
Collapse
Affiliation(s)
- Teresa Basinska
- Center of Molecular and Macromolecular Studies, Polish Academy of Sciences, ul. Sienkiewicza 112, 90-363 Lodz, Poland.
| | | | | |
Collapse
|
33
|
Maciejewska M, Osypiuk J, Gawdzik B. Preparation and characterization of the chromatographic properties of ethylene glycol dimethacrylate/divinylbenzene polymeric microspheres. ACTA ACUST UNITED AC 2005. [DOI: 10.1002/pola.20780] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
34
|
Xu ZS, Deng ZW, Hu XX, Li L, Yi CF. Monodisperse polystyrene microspheres prepared by dispersion polymerization with microwave irradiation. ACTA ACUST UNITED AC 2005. [DOI: 10.1002/pola.20714] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
35
|
Ma Z, Guan Y, Liu X, Liu H. Covalent immobilization of albumin on micron-sized magnetic poly(methyl methacrylate-divinylbenzene-glycidyl methacrylate) microspheres prepared by modified suspension polymerization. POLYM ADVAN TECHNOL 2005. [DOI: 10.1002/pat.618] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
|
36
|
Radomska-Galant I, Basinska T. Poly(styrene/α-tert-butoxy-ω-vinylbenzylpolyglycidol) Microspheres for Immunodiagnostics. Principle of a Novel Latex Test Based on Combined Electrophoretic Mobility and Particle Aggregation Measurements. Biomacromolecules 2003; 4:1848-55. [PMID: 14606918 DOI: 10.1021/bm0342887] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The principle of a novel latex agglutination test based on combined results of electrophoretic mobility and particle aggregation measurements is described. Poly(styrene/alpha-tert-butoxy-omega-vinylbenzylpolyglycidol) (P(S/PGL)) microspheres were synthesized by a one step soap-free emulsion copolymerization of styrene and alpha-tert-butoxy-omega-vinylbenzylpolyglycidol macromonomer with number average molecular weight Mn = 2700 (polydispersity [Mw]/[Mn] = 1.10). Particles with monomodal size distribution (number average diameter Dn = 220 nm) and surface fraction of polyglycidol equal to f = 0.42 mol % were obtained. Human serum albumin (HSA) was covalently bound onto the surface of P(S/PGL) microspheres activated with 1,3,5-trichlorotriazine. In a model immunodiagnostic assay for anti-HSA, in which P(S/PGL) particles with covalently bound HSA have been used, the electrophoretic mobility and aggregation of microspheres were measured simultaneously. This approach allowed detection of anti-HSA in the serum in the range of anti-HSA concentrations from 0.1 to 150 microg/mL. The highest changes in electrophoretic mobility were registered for microspheres with surface concentration of immobilized HSA equal to Gamma = 9.2 x 10(-4) g/m2.
Collapse
Affiliation(s)
- Izabela Radomska-Galant
- Department of Biotechnology and Food Science, Institute of Technical Biochemistry Technical University of Lodz, ul. Stefanowskiego 4/10, 90-924 Lodz, Poland
| | | |
Collapse
|