1
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Gil N, Thomas C, Mhanna R, Mauriello J, Maury R, Leuschel B, Malval JP, Clément JL, Gigmes D, Lefay C, Soppera O, Guillaneuf Y. Thionolactone as a Resin Additive to Prepare (Bio)degradable 3D Objects via VAT Photopolymerization. Angew Chem Int Ed Engl 2022; 61:e202117700. [PMID: 35128770 DOI: 10.1002/anie.202117700] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Indexed: 12/22/2022]
Abstract
Three-dimensional (3D) printing and especially VAT photopolymerization leads to cross-linked materials with high thermal, chemical, and mechanical stability. Nevertheless, these properties are incompatible with requirements of degradability and re/upcyclability. We show here that thionolactone and in particular dibenzo[c,e]-oxepane-5-thione (DOT) can be used as an additive (2 wt %) to acrylate-based resins to introduce weak bonds into the network via a radical ring-opening polymerization process. The low amount of additive makes it possible to modify the printability of the resin only slightly, keep its resolution intact, and maintain the mechanical properties of the 3D object. The resin with additive was used in UV microfabrication and two-photon stereolithography setups and commercial 3D printers. The fabricated objects were shown to degrade in basic solvent as well in a homemade compost. The rate of degradation is nonetheless dependent on the size of the object. This feature was used to prepare 3D objects with support structures that could be easily solubilized.
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Affiliation(s)
- Noémie Gil
- Aix-Marseille Univ., CNRS, Institut de Chimie Radicalaire (UMR 7273), Av. Esc. Normendie-Niemen, Case 542, 13397, Cedex 20, France
| | - Constance Thomas
- Université de Haute-Alsace CNRS, IS2M UMR 7361, 68100, Mulhouse, France.,Université de Strasbourg, Strasbourg, France
| | - Rana Mhanna
- Université de Haute-Alsace CNRS, IS2M UMR 7361, 68100, Mulhouse, France.,Université de Strasbourg, Strasbourg, France
| | - Jessica Mauriello
- Aix-Marseille Univ., CNRS, Institut de Chimie Radicalaire (UMR 7273), Av. Esc. Normendie-Niemen, Case 542, 13397, Cedex 20, France
| | - Romain Maury
- Aix-Marseille Univ., CNRS, Institut de Chimie Radicalaire (UMR 7273), Av. Esc. Normendie-Niemen, Case 542, 13397, Cedex 20, France
| | - Benjamin Leuschel
- Université de Haute-Alsace CNRS, IS2M UMR 7361, 68100, Mulhouse, France.,Université de Strasbourg, Strasbourg, France
| | - Jean-Pierre Malval
- Université de Haute-Alsace CNRS, IS2M UMR 7361, 68100, Mulhouse, France.,Université de Strasbourg, Strasbourg, France
| | - Jean-Louis Clément
- Aix-Marseille Univ., CNRS, Institut de Chimie Radicalaire (UMR 7273), Av. Esc. Normendie-Niemen, Case 542, 13397, Cedex 20, France
| | - Didier Gigmes
- Aix-Marseille Univ., CNRS, Institut de Chimie Radicalaire (UMR 7273), Av. Esc. Normendie-Niemen, Case 542, 13397, Cedex 20, France
| | - Catherine Lefay
- Aix-Marseille Univ., CNRS, Institut de Chimie Radicalaire (UMR 7273), Av. Esc. Normendie-Niemen, Case 542, 13397, Cedex 20, France
| | - Olivier Soppera
- Université de Haute-Alsace CNRS, IS2M UMR 7361, 68100, Mulhouse, France.,Université de Strasbourg, Strasbourg, France
| | - Yohann Guillaneuf
- Aix-Marseille Univ., CNRS, Institut de Chimie Radicalaire (UMR 7273), Av. Esc. Normendie-Niemen, Case 542, 13397, Cedex 20, France
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2
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Carberry BJ, Hernandez JJ, Dobson A, Bowman CN, Anseth KS. Kinetic Analysis of Degradation in Thioester Cross-linked Hydrogels as a Function of Thiol Concentration, p Ka, and Presentation. Macromolecules 2022. [DOI: 10.1021/acs.macromol.1c02396] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Benjamin J. Carberry
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80303, United States
- The BioFrontiers Institute, University of Colorado Boulder, Boulder, Colorado 80303, United States
| | - Juan J. Hernandez
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80303, United States
- The BioFrontiers Institute, University of Colorado Boulder, Boulder, Colorado 80303, United States
| | - Adam Dobson
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80303, United States
- The BioFrontiers Institute, University of Colorado Boulder, Boulder, Colorado 80303, United States
| | - Christopher N. Bowman
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80303, United States
- The BioFrontiers Institute, University of Colorado Boulder, Boulder, Colorado 80303, United States
- Department of Materials Science and Engineering, University of Colorado Boulder, Boulder, Colorado 80303, United States
| | - Kristi S. Anseth
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80303, United States
- The BioFrontiers Institute, University of Colorado Boulder, Boulder, Colorado 80303, United States
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3
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Gil N, Thomas C, Mhanna R, Mauriello J, Maury R, Leuschel B, Malval J, Clément J, Gigmes D, Lefay C, Soppera O, Guillaneuf Y. Thionolactone as a Resin Additive to Prepare (Bio)degradable 3D Objects via VAT Photopolymerization**. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202117700] [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]
Affiliation(s)
- Noémie Gil
- Aix-Marseille Univ. CNRS, Institut de Chimie Radicalaire (UMR 7273) Av. Esc. Normendie-Niemen, Case 542 13397 Cedex 20 France
| | - Constance Thomas
- Université de Haute-Alsace CNRS IS2M UMR 7361 68100 Mulhouse France
- Université de Strasbourg Strasbourg France
| | - Rana Mhanna
- Université de Haute-Alsace CNRS IS2M UMR 7361 68100 Mulhouse France
- Université de Strasbourg Strasbourg France
| | - Jessica Mauriello
- Aix-Marseille Univ. CNRS, Institut de Chimie Radicalaire (UMR 7273) Av. Esc. Normendie-Niemen, Case 542 13397 Cedex 20 France
| | - Romain Maury
- Aix-Marseille Univ. CNRS, Institut de Chimie Radicalaire (UMR 7273) Av. Esc. Normendie-Niemen, Case 542 13397 Cedex 20 France
| | - Benjamin Leuschel
- Université de Haute-Alsace CNRS IS2M UMR 7361 68100 Mulhouse France
- Université de Strasbourg Strasbourg France
| | - Jean‐Pierre Malval
- Université de Haute-Alsace CNRS IS2M UMR 7361 68100 Mulhouse France
- Université de Strasbourg Strasbourg France
| | - Jean‐Louis Clément
- Aix-Marseille Univ. CNRS, Institut de Chimie Radicalaire (UMR 7273) Av. Esc. Normendie-Niemen, Case 542 13397 Cedex 20 France
| | - Didier Gigmes
- Aix-Marseille Univ. CNRS, Institut de Chimie Radicalaire (UMR 7273) Av. Esc. Normendie-Niemen, Case 542 13397 Cedex 20 France
| | - Catherine Lefay
- Aix-Marseille Univ. CNRS, Institut de Chimie Radicalaire (UMR 7273) Av. Esc. Normendie-Niemen, Case 542 13397 Cedex 20 France
| | - Olivier Soppera
- Université de Haute-Alsace CNRS IS2M UMR 7361 68100 Mulhouse France
- Université de Strasbourg Strasbourg France
| | - Yohann Guillaneuf
- Aix-Marseille Univ. CNRS, Institut de Chimie Radicalaire (UMR 7273) Av. Esc. Normendie-Niemen, Case 542 13397 Cedex 20 France
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4
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Hernandez JJ, Dobson AL, Carberry BJ, Kuenstler AS, Shah PK, Anseth KS, White TJ, Bowman CN. Controlled Degradation of Cast and 3-D Printed Photocurable Thioester Networks via Thiol–Thioester Exchange. Macromolecules 2022. [DOI: 10.1021/acs.macromol.1c02459] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Juan J. Hernandez
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80309, United States
| | - Adam L. Dobson
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80309, United States
| | - Benjamin J. Carberry
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80309, United States
- The Bio Frontiers Institute, University of Colorado Boulder, Boulder, Colorado 80309, United States
| | - Alexa S. Kuenstler
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80309, United States
| | - Parag K. Shah
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80309, United States
| | - Kristi S. Anseth
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80309, United States
- The Bio Frontiers Institute, University of Colorado Boulder, Boulder, Colorado 80309, United States
| | - Timothy J. White
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80309, United States
- Materials Science and Engineering Program, University of Colorado Boulder, Boulder, Colorado 80309, United States
| | - Christopher N. Bowman
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80309, United States
- Materials Science and Engineering Program, University of Colorado Boulder, Boulder, Colorado 80309, United States
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5
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Vernerey FJ, Lalitha Sridhar S, Muralidharan A, Bryant SJ. Mechanics of 3D Cell-Hydrogel Interactions: Experiments, Models, and Mechanisms. Chem Rev 2021; 121:11085-11148. [PMID: 34473466 DOI: 10.1021/acs.chemrev.1c00046] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Hydrogels are highly water-swollen molecular networks that are ideal platforms to create tissue mimetics owing to their vast and tunable properties. As such, hydrogels are promising cell-delivery vehicles for applications in tissue engineering and have also emerged as an important base for ex vivo models to study healthy and pathophysiological events in a carefully controlled three-dimensional environment. Cells are readily encapsulated in hydrogels resulting in a plethora of biochemical and mechanical communication mechanisms, which recapitulates the natural cell and extracellular matrix interaction in tissues. These interactions are complex, with multiple events that are invariably coupled and spanning multiple length and time scales. To study and identify the underlying mechanisms involved, an integrated experimental and computational approach is ideally needed. This review discusses the state of our knowledge on cell-hydrogel interactions, with a focus on mechanics and transport, and in this context, highlights recent advancements in experiments, mathematical and computational modeling. The review begins with a background on the thermodynamics and physics fundamentals that govern hydrogel mechanics and transport. The review focuses on two main classes of hydrogels, described as semiflexible polymer networks that represent physically cross-linked fibrous hydrogels and flexible polymer networks representing the chemically cross-linked synthetic and natural hydrogels. In this review, we highlight five main cell-hydrogel interactions that involve key cellular functions related to communication, mechanosensing, migration, growth, and tissue deposition and elaboration. For each of these cellular functions, recent experiments and the most up to date modeling strategies are discussed and then followed by a summary of how to tune hydrogel properties to achieve a desired functional cellular outcome. We conclude with a summary linking these advancements and make the case for the need to integrate experiments and modeling to advance our fundamental understanding of cell-matrix interactions that will ultimately help identify new therapeutic approaches and enable successful tissue engineering.
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Affiliation(s)
- Franck J Vernerey
- Department of Mechanical Engineering, University of Colorado at Boulder, 1111 Engineering Drive, Boulder, Colorado 80309-0428, United States.,Materials Science and Engineering Program, University of Colorado at Boulder, 4001 Discovery Drive, Boulder, Colorado 80309-613, United States
| | - Shankar Lalitha Sridhar
- Department of Mechanical Engineering, University of Colorado at Boulder, 1111 Engineering Drive, Boulder, Colorado 80309-0428, United States
| | - Archish Muralidharan
- Materials Science and Engineering Program, University of Colorado at Boulder, 4001 Discovery Drive, Boulder, Colorado 80309-613, United States
| | - Stephanie J Bryant
- Materials Science and Engineering Program, University of Colorado at Boulder, 4001 Discovery Drive, Boulder, Colorado 80309-613, United States.,Department of Chemical and Biological Engineering, University of Colorado at Boulder, 3415 Colorado Avenue, Boulder, Colorado 80309-0596, United States.,BioFrontiers Institute, University of Colorado at Boulder, 3415 Colorado Avenue, Boulder, Colorado 80309-0596, United States
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6
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Alameda BM, Palmer TC, Sisemore JD, Pierini NG, Patton DL. Hydrolytically degradable poly(β-thioether ester ketal) thermosets via radical-mediated thiol–ene photopolymerization. Polym Chem 2019. [DOI: 10.1039/c9py01082c] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Poly(β-thioether ester ketal) networks are reported that undergo complete degradation with tuneable degradation profiles under acid and/or basic conditions.
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Affiliation(s)
- Benjamin M. Alameda
- School of Polymer Science and Engineering
- The University of Southern Mississippi
- Hattiesburg
- USA
| | - Travis C. Palmer
- School of Polymer Science and Engineering
- The University of Southern Mississippi
- Hattiesburg
- USA
| | - Jonathan D. Sisemore
- School of Polymer Science and Engineering
- The University of Southern Mississippi
- Hattiesburg
- USA
| | - Nicholas G. Pierini
- School of Polymer Science and Engineering
- The University of Southern Mississippi
- Hattiesburg
- USA
| | - Derek L. Patton
- School of Polymer Science and Engineering
- The University of Southern Mississippi
- Hattiesburg
- USA
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7
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Forghani A, Garber L, Chen C, Tavangarian F, Tighe TB, Devireddy R, Pojman JA, Hayes D. Fabrication and characterization of thiol-triacrylate polymer via Michael addition reaction for biomedical applications. ACTA ACUST UNITED AC 2018; 14:015001. [PMID: 30355851 DOI: 10.1088/1748-605x/aae684] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Thiol-acrylate polymers have therapeutic potential as biocompatible scaffolds for bone tissue regeneration. Synthesis of a novel cyto-compatible and biodegradable polymer composed of trimethylolpropane ethoxylate triacrylate-trimethylolpropane tris (3-mercaptopropionate) (TMPeTA-TMPTMP) using a simple amine-catalyzed Michael addition reaction is reported in this study. This study explores the impact of molecular weight and crosslink density on the cyto-compatibility of human adipose derived mesenchymal stem cells. Eight groups were prepared with two different average molecular weights of trimethylolpropane ethoxylate triacrylate (TMPeTA 692 and 912) and four different concentrations of diethylamine (DEA) as catalyst. The materials were physically characterized by mechanical testing, wettability, mass loss, protein adsorption and surface topography. Cyto-compatibility of the polymeric substrates was evaluated by LIVE/DEAD staining® and DNA content assay of cultured human adipose derived stem cells (hASCs) on the samples over over days. Surface topography studies revealed that TMPeTA (692) samples have island pattern features whereas TMPeTA (912) polymers showed pitted surfaces. Water contact angle results showed a significant difference between TMPeTA (692) and TMPeTA (912) monomers with the same DEA concentration. Decreased protein adsorption was observed on TMPeTA (912) -16% DEA compared to other groups. Fluorescent microscopy also showed distinct hASCs attachment behavior between TMPeTA (692) and TMPeTA (912), which is due to their different surface topography, protein adsorption and wettability. Our finding suggested that this thiol-acrylate based polymer is a versatile, cyto-compatible material for tissue engineering applications with tunable cell attachment property based on surface characteristics.
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Affiliation(s)
- Anoosha Forghani
- Department of Biomedical Engineering, Millennium Science Complex, Pennsylvania State University, University Park, PA 16802, United States of America
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8
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Rider P, Kačarević ŽP, Alkildani S, Retnasingh S, Schnettler R, Barbeck M. Additive Manufacturing for Guided Bone Regeneration: A Perspective for Alveolar Ridge Augmentation. Int J Mol Sci 2018; 19:E3308. [PMID: 30355988 PMCID: PMC6274711 DOI: 10.3390/ijms19113308] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 10/18/2018] [Accepted: 10/21/2018] [Indexed: 12/14/2022] Open
Abstract
Three-dimensional (3D) printing has become an important tool in the field of tissue engineering and its further development will lead to completely new clinical possibilities. The ability to create tissue scaffolds with controllable characteristics, such as internal architecture, porosity, and interconnectivity make it highly desirable in comparison to conventional techniques, which lack a defined structure and repeatability between scaffolds. Furthermore, 3D printing allows for the production of scaffolds with patient-specific dimensions using computer-aided design. The availability of commercially available 3D printed permanent implants is on the rise; however, there are yet to be any commercially available biodegradable/bioresorbable devices. This review will compare the main 3D printing techniques of: stereolithography; selective laser sintering; powder bed inkjet printing and extrusion printing; for the fabrication of biodegradable/bioresorbable bone tissue scaffolds; and, discuss their potential for dental applications, specifically augmentation of the alveolar ridge.
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Affiliation(s)
- Patrick Rider
- Botiss Biomaterials GmbH, Hauptstr. 28, 15806 Zossen, Germany.
| | - Željka Perić Kačarević
- Department of Anatomy, Histology and Embryology, Faculty of Dental Medicine and Health, Josip Juraj Strossmayer University of Osijek, Osijek 31000, Croatia.
| | - Said Alkildani
- Department of Biomedical Engineering, Faculty of Applied Medical Sciences, German-Jordanian University, Amman 11180, Jordan.
| | - Sujith Retnasingh
- Institutes for Environmental Toxicology, Martin-Luther-Universität, Halle-Wittenberg and Faculty of Biomedical Engineering, Anhalt University of Applied Science, 06366 Köthen, Germany.
| | - Reinhard Schnettler
- Department of Oral and Maxillofacial Surgery, University Hospital Hamburg-Eppendorf, 20246 Hamburg, Germany.
| | - Mike Barbeck
- Department of Oral and Maxillofacial Surgery, University Hospital Hamburg-Eppendorf, 20246 Hamburg, Germany.
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9
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Photocrosslinker technology: An antimicrobial efficacy of cinnamaldehyde cross-linked low-density polyethylene (Cin-C-LDPE) as a novel food wrapper. Food Res Int 2017; 102:144-155. [DOI: 10.1016/j.foodres.2017.09.095] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Revised: 09/29/2017] [Accepted: 09/29/2017] [Indexed: 12/21/2022]
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10
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Preparation and Characterization of Fluorinated Hydrophobic UV-Crosslinkable Thiol-Ene Polyurethane Coatings. COATINGS 2017. [DOI: 10.3390/coatings7080117] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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11
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Concellón A, Asín L, González-Lana S, de la Fuente JM, Sánchez-Somolinos C, Piñol M, Oriol L. Photopolymers based on ethynyl-functionalized degradable polylactides by thiol-yne ‘Click Chemistry’. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.04.035] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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12
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Shi Z, Shao L, Zhang Y, Guan Y, Wang F, Deng F, Liu Y, Wang Y. Fabrication of polymer-dispersed liquid crystals with low driving voltage based on the thiol-ene click reaction. POLYM INT 2017. [DOI: 10.1002/pi.5365] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Zhiqing Shi
- State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering; Sichuan University; Chengdu PR China
| | - Leishan Shao
- Research Institute of Maoming Petrochemical Company; SINOPEC; PR China
| | - Yuliang Zhang
- State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering; Sichuan University; Chengdu PR China
| | - Yu Guan
- State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering; Sichuan University; Chengdu PR China
| | - Fei Wang
- State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering; Sichuan University; Chengdu PR China
| | - Feifei Deng
- State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering; Sichuan University; Chengdu PR China
| | - Yawei Liu
- State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering; Sichuan University; Chengdu PR China
| | - Yinghan Wang
- State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering; Sichuan University; Chengdu PR China
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13
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Emmakah AM, Arman HE, Bragg JC, Greene T, Alvarez MB, Childress PJ, Goebel WS, Kacena MA, Lin CC, Chu TM. A fast-degrading thiol–acrylate based hydrogel for cranial regeneration. Biomed Mater 2017; 12:025011. [DOI: 10.1088/1748-605x/aa5f3e] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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14
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15
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Ji H, Xi K, Zhang Q, Jia X. Photodegradable hydrogels for external manipulation of cellular microenvironments with real-time monitoring. RSC Adv 2017. [DOI: 10.1039/c7ra02629c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A designed hydrogel whose stiffness could not only be controlled but also monitored in situ by fluorescence.
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Affiliation(s)
- Hanxu Ji
- State Key Laboratory of Coordination Chemistry
- Department of Polymer Science & Engineering
- Nanjing National Laboratory of Microstructures
- Nanjing University
- Nanjing 210093
| | - Kai Xi
- Department of Polymer Science & Engineering
- Nanjing University
- Nanjing 210093
- P. R. China
| | - Qiuhong Zhang
- Department of Polymer Science & Engineering
- Nanjing University
- Nanjing 210093
- P. R. China
| | - Xudong Jia
- State Key Laboratory of Coordination Chemistry
- Department of Polymer Science & Engineering
- Nanjing National Laboratory of Microstructures
- Nanjing University
- Nanjing 210093
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16
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Mehdizadeh H, Bayrak ES, Lu C, Somo SI, Akar B, Brey EM, Cinar A. Agent-based modeling of porous scaffold degradation and vascularization: Optimal scaffold design based on architecture and degradation dynamics. Acta Biomater 2015; 27:167-178. [PMID: 26363375 DOI: 10.1016/j.actbio.2015.09.011] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2015] [Revised: 08/26/2015] [Accepted: 09/08/2015] [Indexed: 12/11/2022]
Abstract
A multi-layer agent-based model (ABM) of biomaterial scaffold vascularization is extended to consider the effects of scaffold degradation kinetics on blood vessel formation. A degradation model describing the bulk disintegration of porous hydrogels is incorporated into the ABM. The combined degradation-angiogenesis model is used to investigate growing blood vessel networks in the presence of a degradable scaffold structure. Simulation results indicate that higher porosity, larger mean pore size, and rapid degradation allow faster vascularization when not considering the structural support of the scaffold. However, premature loss of structural support results in failure for the material. A strategy using multi-layer scaffold with different degradation rates in each layer was investigated as a way to address this issue. Vascularization was improved with the multi-layered scaffold model compared to the single-layer model. The ABM developed provides insight into the characteristics that influence the selection of optimal geometric parameters and degradation behavior of scaffolds, and enables easy refinement of the model as new knowledge about the underlying biological phenomena becomes available. STATEMENT OF SIGNIFICANCE This paper proposes a multi-layer agent-based model (ABM) of biomaterial scaffold vascularization integrated with a structural-kinetic model describing bulk degradation of porous hydrogels to consider the effects of scaffold degradation kinetics on blood vessel formation. This enables the assessment of scaffold characteristics and in particular the disintegration characteristics of the scaffold on angiogenesis. Simulation results indicate that higher porosity, larger mean pore size, and rapid degradation allow faster vascularization when not considering the structural support of the scaffold. However, premature loss of structural support by scaffold disintegration results in failure of the material and disruption of angiogenesis. A strategy using multi-layer scaffold with different degradation rates in each layer was investigated as away to address this issue. Vascularization was improved with the multi-layered scaffold model compared to the single-layer model. The ABM developed provides insight into the characteristics that influence the selection of optimal geometric and degradation characteristics of tissue engineering scaffolds.
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Affiliation(s)
- Hamidreza Mehdizadeh
- Department of Chemical and Biological Engineering, Illinois Institute of Technology, 10 W 33rd St, Suite 127, Chicago, IL 60616, USA
| | - Elif S Bayrak
- Department of Chemical and Biological Engineering, Illinois Institute of Technology, 10 W 33rd St, Suite 127, Chicago, IL 60616, USA
| | - Chenlin Lu
- Department of Chemical and Biological Engineering, Illinois Institute of Technology, 10 W 33rd St, Suite 127, Chicago, IL 60616, USA
| | - Sami I Somo
- Department of Biomedical Engineering, Illinois Institute of Technology, Suite 314, 3255 S Dearborn St, Chicago, IL 60616, USA
| | - Banu Akar
- Department of Biomedical Engineering, Illinois Institute of Technology, Suite 314, 3255 S Dearborn St, Chicago, IL 60616, USA
| | - Eric M Brey
- Department of Biomedical Engineering, Illinois Institute of Technology, Suite 314, 3255 S Dearborn St, Chicago, IL 60616, USA; Research Service, Hines Veterans Administration Hospital, Hines, IL, USA
| | - Ali Cinar
- Department of Chemical and Biological Engineering, Illinois Institute of Technology, 10 W 33rd St, Suite 127, Chicago, IL 60616, USA; Department of Biomedical Engineering, Illinois Institute of Technology, Suite 314, 3255 S Dearborn St, Chicago, IL 60616, USA.
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17
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Reid R, Sgobba M, Raveh B, Rastelli G, Sali A, Santi DV. Analytical and Simulation-Based Models for Drug Release and Gel-Degradation in a Tetra-PEG Hydrogel Drug-Delivery System. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b01598] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ralph Reid
- ProLynx, San Francisco, California 94158, United States
| | - Miriam Sgobba
- Department
of Bioengineering and Therapeutic Sciences, Department of Pharmaceutical
Chemistry, and California Institute for Quantitative Biosciences (QB3), University of California, San Francisco, San Francisco, California 94143, United States
- Dipartimento
di Scienze della Vita, Università di Modena e Reggio, 41121 Emilia, Italy
| | - Barak Raveh
- Department
of Bioengineering and Therapeutic Sciences, Department of Pharmaceutical
Chemistry, and California Institute for Quantitative Biosciences (QB3), University of California, San Francisco, San Francisco, California 94143, United States
| | - Giulio Rastelli
- Dipartimento
di Scienze della Vita, Università di Modena e Reggio, 41121 Emilia, Italy
| | - Andrej Sali
- Department
of Bioengineering and Therapeutic Sciences, Department of Pharmaceutical
Chemistry, and California Institute for Quantitative Biosciences (QB3), University of California, San Francisco, San Francisco, California 94143, United States
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18
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Sawicki LA, Kloxin AM. Design of thiol-ene photoclick hydrogels using facile techniques for cell culture applications†Electronic supplementary information (ESI) available. See DOI: 10.1039/c4bm00187gClick here for additional data file. Biomater Sci 2014; 2:1612-1626. [PMID: 25717375 PMCID: PMC4324132 DOI: 10.1039/c4bm00187g] [Citation(s) in RCA: 86] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Accepted: 08/14/2014] [Indexed: 01/25/2023]
Abstract
Thiol-ene 'click' chemistries have been widely used in biomaterials applications, including drug delivery, tissue engineering, and controlled cell culture, owing to their rapid, cytocompatible, and often orthogonal reactivity. In particular, hydrogel-based biomaterials formed by photoinitiated thiol-ene reactions afford spatiotemporal control over the biochemical and biomechanical properties of the network for creating synthetic materials that mimic the extracellular matrix or enable controlled drug release. However, the use of charged peptides functionalized with cysteines, which can form disulfides prior to reaction, and vinyl monomers that require multistep syntheses and contain ester bonds, may lead to undesired inhomogeneity or degradation under cell culture conditions. Here, we designed a thiol-ene hydrogel formed by the reaction of allyloxycarbonyl-functionalized peptides and thiol-functionalized poly(ethylene glycol). Hydrogels were polymerized by free radical initiation under cytocompatible doses of long wavelength ultraviolet light in the presence of water-soluble photoinitiators (lithium acylphosphinate, LAP, and 2-hydroxy-1-[4-(2-hydroxyethoxy)phenyl]-2-methyl-1-propanone, Irgacure 2959). Mechanical properties of these hydrogels were controlled by varying the monomer concentration to mimic a range of soft tissue environments, and hydrogel stability in cell culture medium was observed over weeks. Patterns of biochemical cues were created within the hydrogels post-formation and confirmed through the incorporation of fluorescently-labeled peptides and Ellman's assay to detect free thiols. Human mesenchymal stem cells remained viable after encapsulation and subsequent photopatterning, demonstrating the utility of the monomers and hydrogels for three-dimensional cell culture. This facile approach enables the formation and characterization of hydrogels with well-defined, spatially-specific properties and expands the suite of monomers available for three-dimensional cell culture and other biological applications.
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Affiliation(s)
- Lisa A Sawicki
- Department of Chemical and Biomolecular Engineering , University of Delaware , Newark , DE 19716 , USA .
| | - April M Kloxin
- Department of Chemical and Biomolecular Engineering , University of Delaware , Newark , DE 19716 , USA . ; Department of Materials Science and Engineering , University of Delaware , Newark , DE 19716 , USA
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19
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Thiol-ene coupling: An efficient tool for the synthesis of new biobased aliphatic amines for epoxy curing. POLYMER 2014. [DOI: 10.1016/j.polymer.2014.07.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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20
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Jasinski F, Lobry E, Tarablsi B, Chemtob A, Croutxé-Barghorn C, Le Nouen D, Criqui A. Light-Mediated Thiol-Ene Polymerization in Miniemulsion: A Fast Route to Semicrystalline Polysulfide Nanoparticles. ACS Macro Lett 2014; 3:958-962. [PMID: 35596368 DOI: 10.1021/mz500458s] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Historically, the synthesis of aqueous polymer dispersions has focused on radical chain-growth polymerization of low-cost acrylate or styrene emulsions. Herein, we demonstrate the potential of UV-initiated thiol-ene step-growth radical polymerization, departing from a nontransparent difunctional monomer miniemulsion based on ethylene glycol dithiol and diallyl adipate. Performed without solvent and at ambient conditions, the photopolymerization process is energy-effective, environmentally friendly, and ultrafast, leading to full monomer consumption in 2 s, upon irradiating a miniemulsion contained in a 1 mm thick quartz cell microreactor. The resultant linear poly(thioether ester) particles have an average diameter of 130 nm. After water evaporation, they yield a clear elastomeric film combining chemical resistance and high degree of crystallinity (55%).
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Affiliation(s)
| | | | | | | | | | | | - Adrien Criqui
- Mäder Research - MÄDER GROUP, 130 rue de la Mer Rouge, 68200 Mulhouse, France
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21
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Bajaj P, Schweller RM, Khademhosseini A, West JL, Bashir R. 3D biofabrication strategies for tissue engineering and regenerative medicine. Annu Rev Biomed Eng 2014; 16:247-76. [PMID: 24905875 PMCID: PMC4131759 DOI: 10.1146/annurev-bioeng-071813-105155] [Citation(s) in RCA: 378] [Impact Index Per Article: 37.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Over the past several decades, there has been an ever-increasing demand for organ transplants. However, there is a severe shortage of donor organs, and as a result of the increasing demand, the gap between supply and demand continues to widen. A potential solution to this problem is to grow or fabricate organs using biomaterial scaffolds and a person's own cells. Although the realization of this solution has been limited, the development of new biofabrication approaches has made it more realistic. This review provides an overview of natural and synthetic biomaterials that have been used for organ/tissue development. It then discusses past and current biofabrication techniques, with a brief explanation of the state of the art. Finally, the review highlights the need for combining vascularization strategies with current biofabrication techniques. Given the multitude of applications of biofabrication technologies, from organ/tissue development to drug discovery/screening to development of complex in vitro models of human diseases, these manufacturing technologies can have a significant impact on the future of medicine and health care.
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Affiliation(s)
- Piyush Bajaj
- Department of Bioengineering, University of Illinois Urbana-Champaign, Urbana, Illinois 61801
- Micro and Nanotechnology Laboratory, University of Illinois Urbana-Champaign, Urbana, Illinois 61801
- Defense System and Analysis Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545
| | - Ryan M. Schweller
- Department of Biomedical Engineering, Duke University, Durham, North Carolina 27708
| | - Ali Khademhosseini
- Center for Biomedical Engineering, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, Massachusetts 02139
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, Massachusetts 02115
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
| | - Jennifer L. West
- Department of Biomedical Engineering, Duke University, Durham, North Carolina 27708
| | - Rashid Bashir
- Department of Bioengineering, University of Illinois Urbana-Champaign, Urbana, Illinois 61801
- Micro and Nanotechnology Laboratory, University of Illinois Urbana-Champaign, Urbana, Illinois 61801
- Department of Electrical and Computer Engineering, University of Illinois Urbana-Champaign, Urbana, Illinois 61801
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22
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Hao Y, Shih H, Muňoz Z, Kemp A, Lin CC. Visible light cured thiol-vinyl hydrogels with tunable degradation for 3D cell culture. Acta Biomater 2014; 10:104-14. [PMID: 24021231 DOI: 10.1016/j.actbio.2013.08.044] [Citation(s) in RCA: 74] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2013] [Revised: 08/05/2013] [Accepted: 08/29/2013] [Indexed: 10/26/2022]
Abstract
We report here a synthetically simple yet highly tunable and diverse visible light mediated thiol-vinyl gelation system for fabricating cell-instructive hydrogels. Gelation was achieved via a mixed-mode step-and-chain-growth photopolymerization using functionalized 4-arm poly(ethylene glycol) as backbone macromer, eosin-Y as photosensitizer, and di-thiol containing molecule as dual purpose co-initiator/cross-linker. N-vinylpyrrolidone (NVP) was used to accelerate gelation kinetics and to adjust the stiffness of the hydrogels. Visible light (wavelength: 400-700 nm) was used to initiate rapid gelation (gel points: ~20s) that reached completion within a few minutes. The major differences between current thiol-vinyl gelation and prior visible light mediated photopolymerization are that: (1) the co-initiator triethanolamine (TEA) used in the previous systems was replaced with multifunctional thiols and (2) mixed-mode polymerized gels contain less network heterogeneity. The gelation kinetics and gel properties at the same PEG macromer concentration could be tuned by changing the identity of vinyl groups and di-thiol cross-linkers, as well as concentration of cross-linker and NVP. Specifically, acrylate-modified PEG afforded the fastest gelation rate, followed by acrylamide and methacrylate-functionalized PEG. Increasing NVP concentration also accelerated gelation and led to a higher network cross-linking density. Further, increasing di-thiol peptide concentration in the gel formulation increased hydrogel swelling and decreased gel stiffness. Due to the formation of thiol-ether-ester bonds following thiol-acrylate reaction, the gels degraded hydrolytically following a pseudo first order degradation kinetics. Degradation rate was controlled by adjusting thiol or NVP content in the polymer precursor solution. The cytocompatibility and utility of this hydrogel system were evaluated using in situ encapsulation of human mesenchymal stem cells (hMSC). Encapsulated hMSCs remained alive (>90%) throughout the duration of the study and the cells were differentiated down osteogenic lineage with varying degrees by controlling the rate and mode of gel degradation.
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23
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Hao Y, Lin CC. Degradable thiol-acrylate hydrogels as tunable matrices for three-dimensional hepatic culture. J Biomed Mater Res A 2013; 102:3813-27. [DOI: 10.1002/jbm.a.35044] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2013] [Revised: 11/08/2013] [Accepted: 11/26/2013] [Indexed: 11/12/2022]
Affiliation(s)
- Yiting Hao
- Department of Biomedical Engineering; Purdue School of Engineering and Technology; Indiana University-Purdue University Indianapolis; Indianapolis Indiana 46202
| | - Chien-Chi Lin
- Department of Biomedical Engineering; Purdue School of Engineering and Technology; Indiana University-Purdue University Indianapolis; Indianapolis Indiana 46202
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24
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Kharkar PM, Kiick KL, Kloxin AM. Designing degradable hydrogels for orthogonal control of cell microenvironments. Chem Soc Rev 2013; 42:7335-72. [PMID: 23609001 PMCID: PMC3762890 DOI: 10.1039/c3cs60040h] [Citation(s) in RCA: 471] [Impact Index Per Article: 42.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2013] [Indexed: 12/12/2022]
Abstract
Degradable and cell-compatible hydrogels can be designed to mimic the physical and biochemical characteristics of native extracellular matrices and provide tunability of degradation rates and related properties under physiological conditions. Hence, such hydrogels are finding widespread application in many bioengineering fields, including controlled bioactive molecule delivery, cell encapsulation for controlled three-dimensional culture, and tissue engineering. Cellular processes, such as adhesion, proliferation, spreading, migration, and differentiation, can be controlled within degradable, cell-compatible hydrogels with temporal tuning of biochemical or biophysical cues, such as growth factor presentation or hydrogel stiffness. However, thoughtful selection of hydrogel base materials, formation chemistries, and degradable moieties is necessary to achieve the appropriate level of property control and desired cellular response. In this review, hydrogel design considerations and materials for hydrogel preparation, ranging from natural polymers to synthetic polymers, are overviewed. Recent advances in chemical and physical methods to crosslink hydrogels are highlighted, as well as recent developments in controlling hydrogel degradation rates and modes of degradation. Special attention is given to spatial or temporal presentation of various biochemical and biophysical cues to modulate cell response in static (i.e., non-degradable) or dynamic (i.e., degradable) microenvironments. This review provides insight into the design of new cell-compatible, degradable hydrogels to understand and modulate cellular processes for various biomedical applications.
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Affiliation(s)
- Prathamesh M. Kharkar
- Department of Materials Science and Engineering , University of Delaware , Newark , DE 19716 , USA . ;
| | - Kristi L. Kiick
- Department of Materials Science and Engineering , University of Delaware , Newark , DE 19716 , USA . ;
- Biomedical Engineering , University of Delaware , Newark , DE 19716 , USA
- Delaware Biotechnology Institute , University of Delaware , Newark , DE 19716 , USA
| | - April M. Kloxin
- Department of Materials Science and Engineering , University of Delaware , Newark , DE 19716 , USA . ;
- Department of Chemical and Biomolecular Engineering , University of Delaware , Newark , DE 19716 , USA
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25
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Photo-initiated thiol-ene “click” hydrogels from RAFT-synthesized poly(N
-isopropylacrylamide). ACTA ACUST UNITED AC 2013. [DOI: 10.1002/pola.26883] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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26
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Tibbitt MW, Kloxin AM, Anseth KS. Modeling Controlled Photodegradation in Optically Thick Hydrogels. JOURNAL OF POLYMER SCIENCE. PART A, POLYMER CHEMISTRY 2013; 51:1899-1911. [PMID: 24496479 PMCID: PMC3785226 DOI: 10.1002/pola.26574] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
There is a growing interest in developing dynamically responsive hydrogels whose material properties are modulated by environmental cues, including with light. These photoresponsive hydrogels afford spatiotemporal control of material properties through an array of photoaddition and photodegradation reactions. For photoresponsive hydrogels to be utilized most effectively in a broad range of applications, the photoreaction behavior should be well understood, enabling the design of dynamic materials with uniform or anisostropic material properties. Here, a general statistical-kinetic model has been developed to describe controlled photodegradation in hydrogel polymer networks containing photolabile crosslinks. The heterogeneous reaction rates that necessarily accompany photochemical reactions were described by solving a system of partial differential equations that quantify the photoreaction kinetics in the material. The kinetics were coupled with statistical descriptions of network structure in chain polymerized hydrogels to model material property changes and mass loss that occur during the photodegradation process. Finally, the physical relevance of the model was demonstrated by comparing model predictions with experimental data of mass loss and material property changes in photodegradable, PEG-based hydrogels.
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Affiliation(s)
- Mark W. Tibbitt
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80303
| | - April M. Kloxin
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80303
- Howard Hughes Medical Institute, University of Colorado Boulder, Boulder, Colorado 80303
| | - Kristi S. Anseth
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80303
- Howard Hughes Medical Institute, University of Colorado Boulder, Boulder, Colorado 80303
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27
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Grube S, Oppermann W. Inhomogeneity in Hydrogels Synthesized by Thiol–Ene Polymerization. Macromolecules 2013. [DOI: 10.1021/ma302520p] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Svenja Grube
- Institute of Physical Chemistry, Clausthal University of Technology, Arnold-Sommerfeld-Straße
4, D-38678 Clausthal-Zellerfeld, Germany
| | - Wilhelm Oppermann
- Institute of Physical Chemistry, Clausthal University of Technology, Arnold-Sommerfeld-Straße
4, D-38678 Clausthal-Zellerfeld, Germany
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28
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Kloxin AM, Lewis KJR, DeForest CA, Seedorf G, Tibbitt MW, Balasubramaniam V, Anseth KS. Responsive culture platform to examine the influence of microenvironmental geometry on cell function in 3D. Integr Biol (Camb) 2012; 4:1540-9. [PMID: 23138879 PMCID: PMC3928973 DOI: 10.1039/c2ib20212c] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
We describe the development of a well-based cell culture platform that enables experimenters to control the geometry and connectivity of cellular microenvironments spatiotemporally. The base material is a hydrogel comprised of photolabile and enzyme-labile crosslinks and pendant cell adhesion sequences, enabling spatially-specific, in situ patterning with light and cell-dictated microenvironment remodeling through enzyme secretion. Arrays of culture wells of varying shape and size were patterned into the hydrogel surface using photolithography, where well depth was correlated with irradiation dose. The geometry of these devices can be subsequently modified through sequential patterning, while simultaneously monitoring changes in cell geometry and connectivity. Towards establishing the utility of these devices for dynamic evaluation of the influence of physical cues on tissue morphogenesis, the effect of well shape on lung epithelial cell differentiation (i.e., primary mouse alveolar type II cells, ATII cells) was assessed. Shapes inspired by alveoli were degraded into hydrogel surfaces. ATII cells were seeded within the well-based arrays and encapsulated by the addition of a top hydrogel layer. Cell differentiation in response to these geometries was characterized over 7 days of culture with immunocytochemistry (surfactant protein C, ATII; T1α protein, alveolar type I (ATI) differentiated epithelial cells) and confocal image analysis. Individual cell clusters were further connected by eroding channels between wells during culture via controlled two-photon irradiation. Collectively, these studies demonstrate the development and utility of responsive hydrogel culture devices to study how a range of microenvironment geometries of evolving shape and connectivity might influence or direct cell function.
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Affiliation(s)
- April M. Kloxin
- Chemical and Biological Engineering, University of Colorado, Boulder, CO. Tel: (303)-735–5336
| | - Katherine J. R. Lewis
- Chemical and Biological Engineering, University of Colorado, Boulder, CO. Tel: (303)-735–5336
| | - Cole A. DeForest
- Chemical and Biological Engineering, University of Colorado, Boulder, CO. Tel: (303)-735–5336
| | - Gregory Seedorf
- Pediatric Heart Lung Center Laboratory, University of Colorado, Denver, CO
| | - Mark W. Tibbitt
- Chemical and Biological Engineering, University of Colorado, Boulder, CO. Tel: (303)-735–5336
| | | | - Kristi S. Anseth
- Chemical and Biological Engineering, University of Colorado, Boulder, CO. Tel: (303)-735–5336
- Howard Hughes Medical Institute, University of Colorado, Boulder, CO
- BioFrontiers Institute, University of Colorado, Boulder, CO
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29
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Lomba M, Oriol L, Sánchez C, Grazú V, Gutiérrez BS, Serrano JL, De la Fuente JM. Photocrosslinking, micropatterning and cell adhesion studies of sodium hyaluronate with a trisdiazonium salt. Carbohydr Polym 2012; 90:419-30. [DOI: 10.1016/j.carbpol.2012.05.061] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2012] [Revised: 05/07/2012] [Accepted: 05/19/2012] [Indexed: 11/28/2022]
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30
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Poly(2-oxazoline) Hydrogel Monoliths via Thiol-ene Coupling. Macromol Rapid Commun 2012; 33:1695-700. [DOI: 10.1002/marc.201200249] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2012] [Indexed: 12/29/2022]
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31
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Shih H, Lin CC. Cross-linking and degradation of step-growth hydrogels formed by thiol-ene photoclick chemistry. Biomacromolecules 2012; 13:2003-12. [PMID: 22708824 DOI: 10.1021/bm300752j] [Citation(s) in RCA: 188] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Thiol-ene photoclick hydrogels have been used for a variety of tissue engineering and controlled release applications. In this step-growth photopolymerization scheme, four-arm poly(ethylene glycol) norbornene (PEG4NB) was cross-linked with dithiol containing cross-linkers to form chemically cross-linked hydrogels. While the mechanism of thiol-ene gelation was well described in the literature, its network ideality and degradation behaviors are not well-characterized. Here, we compared the network cross-linking of thiol-ene hydrogels to Michael-type addition hydrogels and found thiol-ene hydrogels formed with faster gel points and higher degree of cross-linking. However, thiol-ene hydrogels still contained significant network nonideality, demonstrated by a high dependency of hydrogel swelling on macromer contents. In addition, the presence of ester bonds within the PEG-norbornene macromer rendered thiol-ene hydrogels hydrolytically degradable. Through validating model predictions with experimental results, we found that the hydrolytic degradation of thiol-ene hydrogels was not only governed by ester bond hydrolysis, but also affected by the degree of network cross-linking. In an attempt to manipulate network cross-linking and degradation of thiol-ene hydrogels, we incorporated peptide cross-linkers with different sequences and characterized the hydrolytic degradation of these PEG-peptide hydrogels. In addition, we incorporated a chymotrypsin-sensitive peptide as part of the cross-linkers to tune the mode of gel degradation from bulk degradation to surface erosion.
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Affiliation(s)
- Han Shih
- Department of Biomedical Engineering, Purdue School of Engineering and Technology, Indiana University-Purdue University at Indianapolis, Indianapolis, Indiana 46202, United States
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32
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Dispinar T, Van Camp W, De Cock LJ, De Geest BG, Du Prez FE. Redox-Responsive Degradable PEG Cryogels as Potential Cell Scaffolds in Tissue Engineering. Macromol Biosci 2012; 12:383-94. [DOI: 10.1002/mabi.201100396] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2011] [Indexed: 12/27/2022]
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33
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Baudis S, Nehl F, Ligon SC, Nigisch A, Bergmeister H, Bernhard D, Stampfl J, Liska R. Elastomeric degradable biomaterials by photopolymerization-based CAD-CAM for vascular tissue engineering. Biomed Mater 2011; 6:055003. [PMID: 21849722 DOI: 10.1088/1748-6041/6/5/055003] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
A predominant portion of mortalities in industrial countries can be attributed to diseases of the cardiovascular system. In the last decades great efforts have been undertaken to develop materials for artificial vascular constructs. However, bio-inert materials like ePTFE or PET fail as material for narrow blood vessel replacements (coronary bypasses). Therefore, we aim to design new biocompatible materials to overcome this. In this paper we investigate the use of photoelastomers for artificial vascular constructs since they may be precisely structured by means of additive manufacturing technologies. Hence, 3D computer aided design and manufacturing technologies (CAD-CAM) offer the possibility of creating cellular structures within the grafts that might favour ingrowth of tissue. Different monomer formulations were screened concerning their suitability for this application but all had drawbacks, especially concerning the suture tear resistance. Therefore, we chose to modify the original network architecture by including dithiol chain transfer agents which effectively co-react with the acrylates and reduce crosslink density. A commercial urethane diacrylate was chosen as base monomer. In combination with reactive diluents and dithiols, the properties of the photopolymers could be tailored and degradability could be introduced. The optimized photoelastomers were in good mechanical accordance with native blood vessels, showed good biocompatibility in in vitro tests, degraded similar to poly(lactic acid) and were successfully manufactured with the 3D CAD-CAM technology.
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Affiliation(s)
- Stefan Baudis
- Institute of Applied Synthetic Chemistry, Vienna University of Technology, Vienna, Austria
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34
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Lomba M, Oriol L, Alcalá R, Sánchez C, Moros M, Grazú V, Serrano JL, De la Fuente JM. In situ photopolymerization of biomaterials by thiol-yne click chemistry. Macromol Biosci 2011; 11:1505-14. [PMID: 21793215 DOI: 10.1002/mabi.201100123] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2011] [Revised: 05/31/2011] [Indexed: 11/06/2022]
Abstract
The thiol-yne click chemistry reaction has been used for the in situ photocrosslinking of an aliphatic hyperbranched polyester. The biocompatibility of the resulting networks has been studied and marked cytotoxicity was not found for HeLa (human cervical carcinoma) tumoral cells and COS7 fibroblasts. The photoinduced thiol-yne process allows the generation of patterned structures with different geometries in films by DLW and these materials can be used as substrates for cell adhesion. The influence of the substrate geometry on cell adhesion has been studied by culturing cells onto these substrates and a preference for the photopatterned polymeric material can be seen in some of the structures by contrast phase microscopy. Actin and vinculin fluorescent staining revealed different adhesion behavior for HeLa cells and COS7 fibroblasts and this could be assigned to the different motility of cells. The thiol-yne photoreaction has proven to be an attractive approach for the preparation of micropatterned biomaterials.
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Affiliation(s)
- Miguel Lomba
- Instituto de Ciencia de Materiales de Aragón (ICMA), CSIC-Universidad de Zaragoza, Departamento de Química Orgánica, Zaragoza, Spain
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35
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Harvison MA, Roth PJ, Davis TP, Lowe AB. End Group Reactions of RAFT-Prepared (Co)Polymers. Aust J Chem 2011. [DOI: 10.1071/ch11152] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This review highlights the chemistry of thiocarbonylthio groups with an emphasis on chemistry conducted at ω or α and ω chain-ends in copolymers prepared by reversible addition–fragmentation chain-transfer (RAFT) radical polymerization. We begin by giving a general overview of reactions associated with the thiocarbonylthio groups, followed by examples associated with macromolecular thiols.
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36
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Temel G, Karaca N, Arsu N. Synthesis of main chain polymeric benzophenone photoinitiator via thiol-ene click chemistry and Its use in free radical polymerization. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/pola.24330] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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37
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DeForest CA, Sims EA, Anseth KS. Peptide-Functionalized Click Hydrogels with Independently Tunable Mechanics and Chemical Functionality for 3D Cell Culture. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2010; 22:4783-4790. [PMID: 20842213 PMCID: PMC2937999 DOI: 10.1021/cm101391y] [Citation(s) in RCA: 135] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2010] [Revised: 07/09/2010] [Indexed: 05/21/2023]
Abstract
Multifunctionalized macromers react via a copper-free click chemistry to form an idealized 3D hydrogel. Subsequently, thiol-containing biomolecules are spatially patterned within the material with precise control over the amount and location of functionalization. Both the network formation and subsequent patterning reactions are fully cytocompatible, allowing these systems to be used to study individual cell behavior at user-defined locations throughout the material.
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Affiliation(s)
| | - Evan A. Sims
- Department of Chemical and Biological Engineering
| | - Kristi S. Anseth
- Department of Chemical and Biological Engineering
- the Howard Hughes Medical Institute
- Corresponding author. E-mail:
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38
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Yang Z, Wicks DA, Yuan J, Pu H, Liu Y. Newly UV-curable polyurethane coatings prepared by multifunctional thiol- and ene-terminated polyurethane aqueous dispersions: Photopolymerization properties. POLYMER 2010. [DOI: 10.1016/j.polymer.2010.02.003] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Lundberg P, Bruin A, Klijnstra JW, Nyström AM, Johansson M, Malkoch M, Hult A. Poly(ethylene glycol)-based thiol-ene hydrogel coatings-curing chemistry, aqueous stability, and potential marine antifouling applications. ACS APPLIED MATERIALS & INTERFACES 2010; 2:903-912. [PMID: 20356297 DOI: 10.1021/am900875g] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Photocured thiol-ene hydrogel coatings based on poly(ethylene glycol) (PEG) were investigated for marine antifouling purposes. By varying the PEG length, vinylic end-group, and thiol cross-linker, a library of hydrogel coatings with different structural composition was efficiently accomplished, with or without ester linkages. The thiol-methacrylate and thiol-allyl systems were evaluated with respect to curing, degradation, as well as antifouling properties. Methacrylate-based systems exhibited homopolymerization, whereas allyl-based systems reacted more selectively through thiol-ene couplings reaction. The ester-free hydrogels elucidated higher hydrolytic stability whereas longer PEG chains accelerated the degradation process. The antifouling properties were evaluated by protein adsorption with Bovine serum albumin (BSA) and bioassays with the marine bacteria, Cobetia marina, and the marine diatom, Amphora coffeaeformis; in all tests, longer PEG lengths improved the antifouling properties.
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Affiliation(s)
- Pontus Lundberg
- KTH Fibre and Polymer Technology, Teknikringen 56-58, SE-100 44 Stockholm, Sweden
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Affiliation(s)
- Charles E Hoyle
- School of Polymers and High Performance Materials, University of Southern Mississippi, Hattiesburg, MS 39406-0001, USA
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Lowe AB. Thiol-ene “click” reactions and recent applications in polymer and materials synthesis. Polym Chem 2010. [DOI: 10.1039/b9py00216b] [Citation(s) in RCA: 1194] [Impact Index Per Article: 85.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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A versatile approach to high-throughput microarrays using thiol-ene chemistry. Nat Chem 2009; 2:138-45. [DOI: 10.1038/nchem.478] [Citation(s) in RCA: 193] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2009] [Accepted: 11/11/2009] [Indexed: 02/04/2023]
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Iha RK, Wooley KL, Nyström AM, Burke DJ, Kade MJ, Hawker CJ. Applications of orthogonal "click" chemistries in the synthesis of functional soft materials. Chem Rev 2009; 109:5620-86. [PMID: 19905010 PMCID: PMC3165017 DOI: 10.1021/cr900138t] [Citation(s) in RCA: 1174] [Impact Index Per Article: 78.3] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Rhiannon K. Iha
- Department of Chemistry, Department of Radiology, Washington University in Saint Louis, Saint Louis, Missouri 63130, USA
| | - Karen L. Wooley
- Department of Chemistry, Department of Radiology, Washington University in Saint Louis, Saint Louis, Missouri 63130, USA
- Department of Chemistry, Texas A&M University, College Station, Texas 77842
| | - Andreas M. Nyström
- Cancer Center Karolinska, Department of Oncology-Pathology CCK, R8:03 Karolinska Hospital and Institute, SE-171 76 Stockholm, Sweden
| | - Daniel J. Burke
- Department of Chemistry and Biochemistry, Department of Materials, and Materials Research Laboratory, University of California, Santa Barbara, California 93106, USA
| | - Matthew J. Kade
- Department of Chemistry and Biochemistry, Department of Materials, and Materials Research Laboratory, University of California, Santa Barbara, California 93106, USA
| | - Craig J. Hawker
- Department of Chemistry and Biochemistry, Department of Materials, and Materials Research Laboratory, University of California, Santa Barbara, California 93106, USA
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Newly UV-curable polyurethane coatings prepared by multifunctional thiol- and ene-terminated polyurethane aqueous dispersions mixtures: Preparation and characterization. POLYMER 2009. [DOI: 10.1016/j.polymer.2008.12.018] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Bowman CN, Kloxin CJ. Toward an enhanced understanding and implementation of photopolymerization reactions. AIChE J 2008. [DOI: 10.1002/aic.11678] [Citation(s) in RCA: 193] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Khire VS, Lee TY, Bowman CN. Synthesis, Characterization and Cleavage of Surface-Bound Linear Polymers Formed Using Thiol−Ene Photopolymerizations. Macromolecules 2008. [DOI: 10.1021/ma8008965] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Vaibhav S. Khire
- Department of Chemical and Biological Engineering, University of Colorado, Boulder, Colorado 80309-0424, and Department of Restorative Dentistry, University of Colorado Health Sciences Center, Denver, Colorado 80045-0508
| | - Tai Yeon Lee
- Department of Chemical and Biological Engineering, University of Colorado, Boulder, Colorado 80309-0424, and Department of Restorative Dentistry, University of Colorado Health Sciences Center, Denver, Colorado 80045-0508
| | - Christopher N. Bowman
- Department of Chemical and Biological Engineering, University of Colorado, Boulder, Colorado 80309-0424, and Department of Restorative Dentistry, University of Colorado Health Sciences Center, Denver, Colorado 80045-0508
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