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Durga G, Kalra P, Kumar Verma V, Wangdi K, Mishra A. Ionic liquids: From a solvent for polymeric reactions to the monomers for poly(ionic liquids). J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116540] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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An in-situ photocrosslinking microfluidic technique to generate non-spherical, cytocompatible, degradable, monodisperse alginate microgels for chondrocyte encapsulation. BIOMICROFLUIDICS 2018; 12:014106. [PMID: 29375727 PMCID: PMC5762234 DOI: 10.1063/1.5017644] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Accepted: 01/04/2018] [Indexed: 05/25/2023]
Abstract
Alginate microgels are widely generated by ionic crosslinking methods, but this method has limitations in controlling the microgel degradation and generating non-spherical microgels. By employing oxidized methacrylated alginate (OMA) that is degradable and photocrosslinkable, we have successfully photocrosslinked monodisperse OMA microgels and demonstrated the feasibility to generate discoid alginate microgels. However, several technical issues obstructed our opto-microfluidic method from being a useful technique. Here, we further characterized and optimized this method. Monodisperse discoid OMA microgels with good shape consistency were, for the first time, generated. The curability of OMA microgels was characterized as the macromer concentration varied from 2% to 10%, and the minimum required photoinitiator (VA-086) concentrations were determined. The effects of crosslinking density and the presence of ions in the storage solution on swelling of OMA hydrogels were identified to give insights into accurate controlling of the microgel size. A much quicker degradation rate (within three weeks) compared to ionically crosslinked alginate hydrogels was indirectly identified by quantifying the elastic modulus using atomic force microscopy. The viability of encapsulated chondrocytes in OMA microgels formed by this method was higher than those from other existing methods, demonstrating its favorable cytocompatibility. It was found that the oxygen tension played a critical role in both the curability of microgels and the cytocompatibility of this technique. We also summarize common practical issues and provide related solutions and/or operational suggestions. By this method, OMA microgels are expected to be valuable alternatives to traditional ionically crosslinked alginate microgels in drug delivery, tissue engineering, and single cell analysis areas due to their multiple favorable properties.
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Bouzrati-Zerelli M, Kirschner J, Fik CP, Maier M, Dietlin C, Morlet-Savary F, Fouassier JP, Becht JM, Klee JE, Lalevée J. Silyl Glyoxylates as a New Class of High Performance Photoinitiators: Blue LED Induced Polymerization of Methacrylates in Thin and Thick Films. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b01370] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Mariem Bouzrati-Zerelli
- Institut
de Science des Matériaux de Mulhouse IS2M, UMR CNRS 7361, UHA, 15, rue Jean Starcky, Cedex 68057 Mulhouse, France
| | - Julie Kirschner
- Institut
de Science des Matériaux de Mulhouse IS2M, UMR CNRS 7361, UHA, 15, rue Jean Starcky, Cedex 68057 Mulhouse, France
| | - Christoph P. Fik
- Dentsply Sirona
Restorative, De-Trey-Str. 1, 78467 Konstanz, Germany
| | - Maximilian Maier
- Dentsply Sirona
Restorative, De-Trey-Str. 1, 78467 Konstanz, Germany
| | - Celine Dietlin
- Institut
de Science des Matériaux de Mulhouse IS2M, UMR CNRS 7361, UHA, 15, rue Jean Starcky, Cedex 68057 Mulhouse, France
| | - Fabrice Morlet-Savary
- Institut
de Science des Matériaux de Mulhouse IS2M, UMR CNRS 7361, UHA, 15, rue Jean Starcky, Cedex 68057 Mulhouse, France
| | - Jean Pierre Fouassier
- Institut
de Science des Matériaux de Mulhouse IS2M, UMR CNRS 7361, UHA, 15, rue Jean Starcky, Cedex 68057 Mulhouse, France
| | - Jean-Michel Becht
- Institut
de Science des Matériaux de Mulhouse IS2M, UMR CNRS 7361, UHA, 15, rue Jean Starcky, Cedex 68057 Mulhouse, France
| | - Joachim E. Klee
- Dentsply Sirona
Restorative, De-Trey-Str. 1, 78467 Konstanz, Germany
| | - Jacques Lalevée
- Institut
de Science des Matériaux de Mulhouse IS2M, UMR CNRS 7361, UHA, 15, rue Jean Starcky, Cedex 68057 Mulhouse, France
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Whitley JW, Benefield SC, Liu H, Burnette MT, Turner CH, Bara JE. Photopolymerization Behavior of Coordinated Ionic Liquids Formed from Organic Monomers with Alkali and Alkaline Earth Metal Bistriflimide Salts. MACROMOL CHEM PHYS 2016. [DOI: 10.1002/macp.201600358] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- John W. Whitley
- Department of Chemical and Biological Engineering; University of Alabama; Tuscaloosa AL 35487-0203 USA
| | - Shellby C. Benefield
- Department of Chemical and Biological Engineering; University of Alabama; Tuscaloosa AL 35487-0203 USA
| | - Haining Liu
- Department of Chemistry and Biochemistry; University of Notre Dame; Notre Dame IN 46566 USA
| | - Michael T. Burnette
- Department of Chemical and Biological Engineering; University of Alabama; Tuscaloosa AL 35487-0203 USA
| | - C. Heath Turner
- Department of Chemical and Biological Engineering; University of Alabama; Tuscaloosa AL 35487-0203 USA
| | - Jason E. Bara
- Department of Chemical and Biological Engineering; University of Alabama; Tuscaloosa AL 35487-0203 USA
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Gutowska N, Maciejewski A. The emission properties of bmimBF4 determined using an HPLC system. Significant influence of emission of impurities. J Photochem Photobiol A Chem 2016. [DOI: 10.1016/j.jphotochem.2016.06.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Affiliation(s)
- Ewa Andrzejewska
- Poznan University of Technology; Faculty of Chemical Technology; Berdychowo 4 60-965 Poznan Poland
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Zgrzeba A, Andrzejewska E, Marcinkowska A. Ionic liquid – containing ionogels by thiol–ene photopolymerization. Kinetics and solvent effect. RSC Adv 2015. [DOI: 10.1039/c5ra21254e] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Vinyl ether/thiol photopolymerization is accelerated by solvents; it occurs faster in non-ionic solvents than in ionic liquids.
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Affiliation(s)
- A. Zgrzeba
- Faculty of Chemical Technology
- Poznan University of Technology
- 60-965 Poznan
- Poland
| | - E. Andrzejewska
- Faculty of Chemical Technology
- Poznan University of Technology
- 60-965 Poznan
- Poland
| | - A. Marcinkowska
- Faculty of Chemical Technology
- Poznan University of Technology
- 60-965 Poznan
- Poland
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