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Canillas M, de Lima GG, de Sá MJC, Nugent MJD, Rodríguez MA, Devine DM. Self-Photopolymerizable Hydrogel-Ceramic Composites with Scavenger Properties. Polymers (Basel) 2022; 14:polym14061261. [PMID: 35335593 PMCID: PMC8950735 DOI: 10.3390/polym14061261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 03/07/2022] [Accepted: 03/16/2022] [Indexed: 11/16/2022] Open
Abstract
The photocatalytic behaviours of semiconductive ceramic nanoparticles such as TiO2, ZnO, Fe2O3, and Fe3O4, have been extensively studied in photocatalysis and photopolymerization, due to their ability to produce radical species under ultraviolet-visible light, and even in dark conditions. In addition, in the form of microparticles, TiO2 and its Magnéli phases are capable of neutralizing radical species, and a heterogeneous catalytic process has been suggested to explain this property, as it is well known as scavenging activity. Thus, in this study, we demonstrate that these ceramic powders, in the form of microparticles, could be used as photoinitiators in UV polymerization in order to synthesize a hydrogel matrix. Them, embedded ceramic powders could be able to neutralize radical species of physiological media once implanted. The hydrogel matrix would regulate the exchange of free radicals in any media, while the ceramic particles would neutralize the reactive species. Therefore, in this work, the scavenger activities of TiO2, ZnO, Fe2O3, and Fe3O4 microparticles, along with their photoinitiation yield, were evaluated. After photopolymerization, the gel fraction and swelling behaviour were evaluated for each hydrogel produced with different ceramic initiators. Gel fractions were higher than 60%, exhibiting variation in their scavenging activity. Therefore, we demonstrate that ceramic photoinitiators of TiO2, ZnO, Fe2O3, and Fe3O4 can be used to fabricate implantable devices with scavenger properties in order to neutralize radical species involved in inflammatory processes and degenerative diseases.
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Affiliation(s)
- Maria Canillas
- Consejo Superior de Investigaciones Cientificas, Instituto de Cerámica y Vidrio, Calle Kelsen, 5, 28049 Madrid, Spain;
- Correspondence: (M.C.); (D.M.D.)
| | - Gabriel Goetten de Lima
- Programa de Pós-Graduação em Engenharia e Ciência dos Materiais—PIPE, Universidade Federal do Paraná, Av. Cel. Francisco H. dos Santos, 100, Jardim das Américas, Curitiba 81530-000, Brazil;
- Materials Research Institute, Technological University of the Shannon, Midlands Midwest, Athlone Campus, University Road, N37 HD68 Athlone, Ireland; (M.J.C.d.S.); (M.J.D.N.)
| | - Marcelo J. C. de Sá
- Materials Research Institute, Technological University of the Shannon, Midlands Midwest, Athlone Campus, University Road, N37 HD68 Athlone, Ireland; (M.J.C.d.S.); (M.J.D.N.)
- Programa de Pós-Graduação em Medicina Veterinária—PPGMV, Universidade Federal de Campina Grande, Avenida Universitária, s/n, Patos, Santa Cecilia, Sao Paulo 58708-110, Brazil
| | - Michael J. D. Nugent
- Materials Research Institute, Technological University of the Shannon, Midlands Midwest, Athlone Campus, University Road, N37 HD68 Athlone, Ireland; (M.J.C.d.S.); (M.J.D.N.)
| | - Miguel A. Rodríguez
- Consejo Superior de Investigaciones Cientificas, Instituto de Cerámica y Vidrio, Calle Kelsen, 5, 28049 Madrid, Spain;
| | - Declan M. Devine
- Materials Research Institute, Technological University of the Shannon, Midlands Midwest, Athlone Campus, University Road, N37 HD68 Athlone, Ireland; (M.J.C.d.S.); (M.J.D.N.)
- Correspondence: (M.C.); (D.M.D.)
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Pradhan SS, Saha S. Advances in design and applications of polymer brush modified anisotropic particles. Adv Colloid Interface Sci 2022; 300:102580. [PMID: 34922246 DOI: 10.1016/j.cis.2021.102580] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 11/24/2021] [Accepted: 11/30/2021] [Indexed: 12/17/2022]
Abstract
Current advancements in the creation of anisotropy in particles and their surface modification with polymer brushes have established a new class of hybrid materials termed polymer brush modified anisotropic particles (PBMAP). PBMAPs display unique property combinations, e.g., multi-functionality in multiple directions along with smart behavior, which is not easily achievable in traditional hybrid materials. Typically, anisotropic particles can be categorized based on three different factors, such as shape anisotropy (geometry driven), compositional anisotropy (functionality driven), and surface anisotropy (spatio-selective surface modification driven). In this review, we have particularly focused on the synthetic strategies to construct the various type of PBMAPs based on inorganic or organic core which may or may not be isotropic in nature, and their applications in various fields ranging from drug delivery to catalysis. In addition, superior performances and fascinating properties of PBMAPs over their isotropic analogues are also highlighted. A brief overview of their future developments and associated challenges have been discussed at the end.
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Affiliation(s)
| | - Sampa Saha
- Department of Materials Science and Engineering, Indian Institute of Technology Delhi, New Delhi, India.
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Li C, Lee B, Wang C, Bajpayee A, Douglas LD, Phillips BK, Yu G, Rivera-Gonzalez N, Peng BJ, Jiang Z, Sue HJ, Banerjee S, Fang L. Photopolymerized superhydrophobic hybrid coating enabled by dual-purpose tetrapodal ZnO for liquid/liquid separation. MATERIALS HORIZONS 2022; 9:452-461. [PMID: 34846413 DOI: 10.1039/d1mh01672e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Low-cost and scalable superhydrophobic coating methods provide viable approaches for energy-efficient separation of immiscible liquid/liquid mixtures. A scalable photopolymerization method is developed to functionalize porous substrates with a hybrid coating of tetrapodal ZnO (T-ZnO) and polymethacrylate, which exhibits simultaneous superhydrophobicity and superoleophilicity. Here, T-ZnO serves dual purposes by (i) initiating radical photopolymerization during the fabrication process through a hole-mediated pathway and (ii) providing a hierarchical surface roughness to amplify wettability characteristics and suspend liquid droplets in the metastable Cassie-Baxter regime. Photopolymerization provides a means to finely control the conversion and spatial distribution of the formed polymer, whilst allowing for facile large-area fabrication and potential coating on heat-sensitive substrates. Coated stainless-steel meshes and filter papers with desired superhydrophobic/superoleophilic properties exhibit excellent performance in separating stratified oil/water, oil/ionic-liquid, and water/ionic-liquid mixtures as well as water-in-oil emulsions. The hybrid coating demonstrates desired mechanical robustness and chemical resistance for their long-term application in large-scale energy-efficient separation of immiscible liquid/liquid mixtures.
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Affiliation(s)
- Chenxuan Li
- Department of Chemistry, Texas A&M University, 3255 TAMU, College Station, TX 77843, USA.
| | - Brian Lee
- Department of Chemistry, Texas A&M University, 3255 TAMU, College Station, TX 77843, USA.
| | - Chenxu Wang
- Department of Materials Science & Engineering, Texas A&M University, 3003 TAMU, College Station, TX 77843, USA
| | - Aayushi Bajpayee
- Department of Chemistry, Texas A&M University, 3255 TAMU, College Station, TX 77843, USA.
- Department of Materials Science & Engineering, Texas A&M University, 3003 TAMU, College Station, TX 77843, USA
| | - Lacey D Douglas
- Department of Chemistry, Texas A&M University, 3255 TAMU, College Station, TX 77843, USA.
- Department of Materials Science & Engineering, Texas A&M University, 3003 TAMU, College Station, TX 77843, USA
| | - Bailey K Phillips
- Department of Chemistry, Texas A&M University, 3255 TAMU, College Station, TX 77843, USA.
| | - Guanghua Yu
- Department of Chemistry, Texas A&M University, 3255 TAMU, College Station, TX 77843, USA.
- Department of Materials Science & Engineering, Texas A&M University, 3003 TAMU, College Station, TX 77843, USA
| | - Natalia Rivera-Gonzalez
- Department of Chemistry, Texas A&M University, 3255 TAMU, College Station, TX 77843, USA.
- Department of Materials Science & Engineering, Texas A&M University, 3003 TAMU, College Station, TX 77843, USA
| | - Bo-Ji Peng
- Department of Chemistry, Texas A&M University, 3255 TAMU, College Station, TX 77843, USA.
| | - Zhiyuan Jiang
- Department of Materials Science & Engineering, Texas A&M University, 3003 TAMU, College Station, TX 77843, USA
| | - Hung-Jue Sue
- Department of Materials Science & Engineering, Texas A&M University, 3003 TAMU, College Station, TX 77843, USA
| | - Sarbajit Banerjee
- Department of Chemistry, Texas A&M University, 3255 TAMU, College Station, TX 77843, USA.
- Department of Materials Science & Engineering, Texas A&M University, 3003 TAMU, College Station, TX 77843, USA
| | - Lei Fang
- Department of Chemistry, Texas A&M University, 3255 TAMU, College Station, TX 77843, USA.
- Department of Materials Science & Engineering, Texas A&M University, 3003 TAMU, College Station, TX 77843, USA
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Zhu Y, Egap E. Light-Mediated Polymerization Induced by Semiconducting Nanomaterials: State-of-the-Art and Future Perspectives. ACS POLYMERS AU 2021; 1:76-99. [PMID: 36855427 PMCID: PMC9954404 DOI: 10.1021/acspolymersau.1c00014] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Direct capture of solar energy for chemical transformation via photocatalysis proves to be a cost-effective and energy-saving approach to construct organic compounds. With the recent growth in photosynthesis, photopolymerization has been established as a robust strategy for the production of specialty polymers with complex structures, precise molecular weight, and narrow dispersity. A key challenge in photopolymerization is the scarcity of effective photomediators (photoinitiators, photocatalysts, etc.) that can provide polymerization with high yield and well-defined polymer products. Current efforts on developing photomediators have mainly focused on organic dyes and metal complexes. On the other hand, nanomaterials (NMs), particularly semiconducting nanomaterials (SNMs), are suitable candidates for photochemical reactions due to their unique optical and electrical properties, such as high absorption coefficients, large charge diffusion lengths, and broad absorption spectra. This review provides a comprehensive insight into SNMs' photomediated polymerizations and highlights the roles SNMs play in photopolymerizations, types of polymerizations, applications in producing advanced materials, and the future directions.
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Affiliation(s)
- Yifan Zhu
- †Department
of Materials Science and Nanoengineering and ‡Department of Chemical and Biomolecular
Engineering, Rice University, Houston, Texas 77005, United States
| | - Eilaf Egap
- †Department
of Materials Science and Nanoengineering and ‡Department of Chemical and Biomolecular
Engineering, Rice University, Houston, Texas 77005, United States,
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Liao J, Ye D. Improving ZnO photoinitiation efficiency by surface reaction with 2-hydroxy-2-methylpropiophenone. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110293] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Waiskopf N, Magdassi S, Banin U. Quantum Photoinitiators: Toward Emerging Photocuring Applications. J Am Chem Soc 2021; 143:577-587. [PMID: 33353293 DOI: 10.1021/jacs.0c10554] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Semiconductor nanocrystals are promising photocatalysts for a wide range of applications, ranging from alternative fuel generation to biomedical and environmental applications. This stems from their diverse properties, including flexible spectral tunability, stability, and photocatalytic efficiencies. Their functionality depends on the complex influence of multiple parameters, including their composition, dimensions, architecture, surface coating, and environmental conditions. A particularly promising direction for rapid adoption of these nanoparticles as photocatalysts is their ability to act as photoinitiators (PIs) for radical polymerization. Previous studies served to demonstrate the proof of concept for the use of quantum confined semiconductor nanocrystals as photoinitiators, coining the term Quantum PIs, and provided insights for their photocatalytic mechanism of action. However, these early reports suffered from low efficiencies while requiring purging with inert gases, use of additives, and irradiation by high light intensities with very long excitation durations, which limited their potential for real-life applications. The progress in nanocrystal syntheses and surface engineering has opened the way to the introduction of the next generation of Quantum PIs. Herein, we introduce the research area of nanocrystal photocatalysts, review their studies as Quantum PIs for radical polymerization, from suspension polymerization to novel printing, as well as in a new family of polymerization techniques, of reversible deactivation radical polymerization, and provide a forward-looking view for the challenges and prospects of this field.
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Affiliation(s)
- Nir Waiskopf
- The Institute of Chemistry and The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Edmond J. Safra Campus, Jerusalem, 91904, Israel
| | - Shlomo Magdassi
- The Institute of Chemistry and The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Edmond J. Safra Campus, Jerusalem, 91904, Israel
| | - Uri Banin
- The Institute of Chemistry and The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Edmond J. Safra Campus, Jerusalem, 91904, Israel
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7
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Brush-modified materials: Control of molecular architecture, assembly behavior, properties and applications. Prog Polym Sci 2020. [DOI: 10.1016/j.progpolymsci.2019.101180] [Citation(s) in RCA: 88] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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8
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Feng J, Ye D. Polymerizable ZnO photoinitiators of surface modification with hydroxyl acrylates and photopolymerization with UV-curable waterborne polyurethane acrylates. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.109252] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Schmitt M, Becker D, Lalevée J. Performance analysis of the solidification of acrylic esters photo-initiated by systematically modified ZnO nanoparticles. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.10.048] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Schmitt M, Garra P, Lalevée J. Bulk Polymerization Photo-Initiator ZnO: Increasing of the Benzoyl Formic Acid Concentration and LED Illumination. MACROMOL CHEM PHYS 2018. [DOI: 10.1002/macp.201800208] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Michael Schmitt
- Institute for Coatings and Surface Chemistry; University of Applied Sciences Niederrhein; 47798 Krefeld Germany
- Department of Physical Chemistry and Physical Chemistry and Didactics of Chemistry; Saarland University; 66123 Saarbrücken Germany
- Institut de Science des Matériaux de Mulhouse IS2M; UMR CNRS 7361; UHA; 15, rue Jean Starcky, 68057 Mulhouse Cedex France
| | - Patxi Garra
- Institut de Science des Matériaux de Mulhouse IS2M; UMR CNRS 7361; UHA; 15, rue Jean Starcky, 68057 Mulhouse Cedex France
| | - Jacques Lalevée
- Institut de Science des Matériaux de Mulhouse IS2M; UMR CNRS 7361; UHA; 15, rue Jean Starcky, 68057 Mulhouse Cedex France
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