1
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Zhang S, Jia E, Zhang W, Wang Z, Deng D, Zhang Y, Huang X, Tian Q, Tan Y, Wang B, Lin F. Injectable alginate-based zwitterionic hydrogels promoting endometrial repair and restoring fertility. Int J Biol Macromol 2024; 275:133458. [PMID: 38945326 DOI: 10.1016/j.ijbiomac.2024.133458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Revised: 05/20/2024] [Accepted: 06/25/2024] [Indexed: 07/02/2024]
Abstract
The development of novel therapeutic approaches to facilitate endometrial repair and regeneration while preventing adhesion recurrence is a crucial research objective aimed at enhancing clinical outcomes for women with intrauterine adhesions (IUA). In this study, we introduced an injectable Alg-GMA/PTSB zwitterionic hydrogel, characterized by excellent biocompatibility, anti-protein adsorption properties, and biodegradability. In a rat model, the hydrogel significantly promoted the regeneration and angiogenesis of damaged endometrial tissue, leading to improved recovery of epithelial cells, glands, proliferation, and vascularization. Furthermore, it exhibited the ability to suppress cellular apoptosis and collagen deposition, thereby mitigating fibrosis. Additionally, the hydrogel restored the expression of estrogen/progesterone receptors and endometrial receptivity markers, contributing to enhanced embryo implantation and fertility. These findings underscore the potential of the hydrogel as a promising therapeutic strategy for addressing endometrial injury, reducing fibrosis, restoring fertility, and ultimately improving outcomes for women with IUA.
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Affiliation(s)
- Sisi Zhang
- Department of Reproductive Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Erna Jia
- Joint Research Centre on Medicine, The Affiliated Xiangshan Hospital of Wenzhou Medical University, Ningbo 315700, China; Wenzhou Key Laboratory of Biophysics, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325000, China
| | - Weiqi Zhang
- Department of Gynecology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Zhiying Wang
- Joint Research Centre on Medicine, The Affiliated Xiangshan Hospital of Wenzhou Medical University, Ningbo 315700, China
| | - Da Deng
- Joint Research Centre on Medicine, The Affiliated Xiangshan Hospital of Wenzhou Medical University, Ningbo 315700, China
| | - Yixin Zhang
- Department of Gynecology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Xuefeng Huang
- Department of Reproductive Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Qingquan Tian
- Hangzhou Kewan New Materials Technology Co., Ltd, Hangzhou 311305, China
| | - Ying Tan
- Joint Research Centre on Medicine, The Affiliated Xiangshan Hospital of Wenzhou Medical University, Ningbo 315700, China; Wenzhou Key Laboratory of Biophysics, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325000, China.
| | - Bujun Wang
- Department of Obstetrics, Pingyang People's Hospital of Wenzhou Medical University, Wenzhou 325499, China.
| | - Feng Lin
- Department of Gynecology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China.
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2
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Zhong C, Nidetzky B. Bottom-Up Synthesized Glucan Materials: Opportunities from Applied Biocatalysis. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2400436. [PMID: 38514194 DOI: 10.1002/adma.202400436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 03/05/2024] [Indexed: 03/23/2024]
Abstract
Linear d-glucans are natural polysaccharides of simple chemical structure. They are comprised of d-glucosyl units linked by a single type of glycosidic bond. Noncovalent interactions within, and between, the d-glucan chains give rise to a broad variety of macromolecular nanostructures that can assemble into crystalline-organized materials of tunable morphology. Structure design and functionalization of d-glucans for diverse material applications largely relies on top-down processing and chemical derivatization of naturally derived starting materials. The top-down approach encounters critical limitations in efficiency, selectivity, and flexibility. Bottom-up approaches of d-glucan synthesis offer different, and often more precise, ways of polymer structure control and provide means of functional diversification widely inaccessible to top-down routes of polysaccharide material processing. Here the natural and engineered enzymes (glycosyltransferases, glycoside hydrolases and phosphorylases, glycosynthases) for d-glucan polymerization are described and the use of applied biocatalysis for the bottom-up assembly of specific d-glucan structures is shown. Advanced material applications of the resulting polymeric products are further shown and their important role in the development of sustainable macromolecular materials in a bio-based circular economy is discussed.
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Affiliation(s)
- Chao Zhong
- Institute of Biotechnology and Biochemical Engineering, Graz University of Technology, NAWI Graz, Petersgasse 12, Graz, 8010, Austria
| | - Bernd Nidetzky
- Institute of Biotechnology and Biochemical Engineering, Graz University of Technology, NAWI Graz, Petersgasse 12, Graz, 8010, Austria
- Austrian Centre of Industrial Biotechnology (acib), Krenngasse 37, Graz, 8010, Austria
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3
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Luu T, Gristwood K, Knight JC, Jörg M. Click Chemistry: Reaction Rates and Their Suitability for Biomedical Applications. Bioconjug Chem 2024; 35:715-731. [PMID: 38775705 PMCID: PMC11191409 DOI: 10.1021/acs.bioconjchem.4c00084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2024] [Revised: 05/09/2024] [Accepted: 05/09/2024] [Indexed: 06/21/2024]
Abstract
Click chemistry has become a commonly used synthetic method due to the simplicity, efficiency, and high selectivity of this class of chemical reactions. Since their initial discovery, further click chemistry methods have been identified and added to the toolbox of click chemistry reactions for biomedical applications. However, selecting the most suitable reaction for a specific application is often challenging, as multiple factors must be considered, including selectivity, reactivity, biocompatibility, and stability. Thus, this review provides an overview of the benefits and limitations of well-established click chemistry reactions with a particular focus on the importance of considering reaction rates, an often overlooked criterion with little available guidance. The importance of understanding each click chemistry reaction beyond simply the reaction speed is discussed comprehensively with reference to recent biomedical research which utilized click chemistry. This review aims to provide a practical resource for researchers to guide the selection of click chemistry classes for different biomedical applications.
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Affiliation(s)
- Tracey Luu
- Medicinal
Chemistry Theme, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria 3052, Australia
| | - Katie Gristwood
- School
of Natural & Environmental Sciences, Newcastle University, Newcastle Upon Tyne NE1 7RU, U.K.
| | - James C. Knight
- School
of Natural & Environmental Sciences, Newcastle University, Newcastle Upon Tyne NE1 7RU, U.K.
| | - Manuela Jörg
- Medicinal
Chemistry Theme, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria 3052, Australia
- School
of Natural & Environmental Sciences, Newcastle University, Newcastle Upon Tyne NE1 7RU, U.K.
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4
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Eskandani M, Jahanban-Esfahlan R, Sadughi MM, Jaymand M. Thermal-responsive β-cyclodextrin-based magnetic hydrogel as a de novo nanomedicine for chemo/hyperthermia treatment of cancerous cells. Heliyon 2024; 10:e32183. [PMID: 38873686 PMCID: PMC11170153 DOI: 10.1016/j.heliyon.2024.e32183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 05/26/2024] [Accepted: 05/29/2024] [Indexed: 06/15/2024] Open
Abstract
A novel thermal-responsive β-cyclodextrin-based magnetic hydrogel [β-cyclodextrin-graft-poly(N-isopropylacrylamide)/Fe3O4 (β-CD-g-PNIPAAm/Fe3O4)] was fabricated as a novel nanomedicine for chemo/hyperthermia treatment of cancer cells. Firstly, β-CD was modified by maleic anhydride (MA) followed by copolymerization with NIPAAm monomer and thiol-end capped Fe3O4 nanoparticles (NPs) in the presence of a crosslinker through acrylamide-thiol polymerization system to afford a magnetic hydrogel. The saturation magnetization (δ s) value for developed hydrogel was determined to be 8.2 emu g-1. The hydrogel was physically loaded with an anticancer agent, doxorubicin hydrochloride (Dox). The encapsulation efficiency (EE) of drug into the hydrogel was obtained as 73 %. The system represented acceptable thermal-triggered drug release behavior that best fitted with Higuchi model, demonstrating the release of drug is mostly controlled by diffusion mechanism. The anticancer performance of the β-CD-g-PNIPAAm/Fe3O4-Dox was evaluated using MCF7 cells by MTT-assay. In addition, flow cytometry analyses showed considerable cellular uptake of Dox in the cells treated with β-CD-g-PNIPAAm/Fe3O4-Dox (∼70 %) compared to free Dox (∼28 %). As results, in time period of 48 h by combination of chemo- and hyperthermia-therapies, the developed system displayed greater anticancer efficiency than the free Dox.
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Affiliation(s)
- Morteza Eskandani
- Research Center for Pharmaceutical Nanotechnology, Biomedicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Rana Jahanban-Esfahlan
- Department of Medical Biotechnology, School of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Mehdi Jaymand
- Nano Drug Delivery Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
- Students Research Committee, Kermanshah University of Medical Sciences, Kermanshah, Iran
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5
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Yu W, Lu X, Xiong L, Teng J, Chen C, Li B, Liao BQ, Lin H, Shen L. Thiol-Ene Click Reaction in Constructing Liquid Separation Membranes for Water Treatment. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2310799. [PMID: 38213014 DOI: 10.1002/smll.202310799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 12/25/2023] [Indexed: 01/13/2024]
Abstract
In the evolving landscape of water treatment, membrane technology has ascended to an instrumental role, underscored by its unmatched efficacy and ubiquity. Diverse synthesis and modification techniques are employed to fabricate state-of-the-art liquid separation membranes. Click reactions, distinguished by their rapid kinetics, minimal byproduct generation, and simple reaction condition, emerge as a potent paradigm for devising eco-functional materials. While the metal-free thiol-ene click reaction is acknowledged as a viable approach for membrane material innovation, a systematic elucidation of its applicability in liquid separation membrane development remains conspicuously absent. This review elucidates the pre-functionalization strategies of substrate materials tailored for thiol-ene reactions, notably highlighting thiolation and introducing unsaturated moieties. The consequential implications of thiol-ene reactions on membrane properties-including trade-off effect, surface wettability, and antifouling property-are discussed. The application of thiol-ene reaction in fabricating various liquid separation membranes for different water treatment processes, including wastewater treatment, oil/water separation, and ion separation, are reviewed. Finally, the prospects of thiol-ene reaction in designing novel liquid separation membrane, including pre-functionalization, products prediction, and solute-solute separation membrane, are proposed. This review endeavors to furnish invaluable insights, paving the way for expanding the horizons of thiol-ene reaction application in liquid separation membrane fabrication.
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Affiliation(s)
- Wei Yu
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
- Key Laboratory of Watershed Earth Surface Processes and Ecological Security, Zhejiang Normal University, Jinhua, 321004, China
| | - Xinyi Lu
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
- Key Laboratory of Watershed Earth Surface Processes and Ecological Security, Zhejiang Normal University, Jinhua, 321004, China
| | - Liping Xiong
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
- Key Laboratory of Watershed Earth Surface Processes and Ecological Security, Zhejiang Normal University, Jinhua, 321004, China
| | - Jiaheng Teng
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
- Key Laboratory of Watershed Earth Surface Processes and Ecological Security, Zhejiang Normal University, Jinhua, 321004, China
| | - Cheng Chen
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
- Key Laboratory of Watershed Earth Surface Processes and Ecological Security, Zhejiang Normal University, Jinhua, 321004, China
| | - Bisheng Li
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
- Key Laboratory of Watershed Earth Surface Processes and Ecological Security, Zhejiang Normal University, Jinhua, 321004, China
| | - Bao-Qiang Liao
- Department of Chemical Engineering, Lakehead University, 955 Oliver Road, Thunder Bay, Ontario, P7B 5E1, Canada
| | - Hongjun Lin
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
- Key Laboratory of Watershed Earth Surface Processes and Ecological Security, Zhejiang Normal University, Jinhua, 321004, China
| | - Liguo Shen
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
- Key Laboratory of Watershed Earth Surface Processes and Ecological Security, Zhejiang Normal University, Jinhua, 321004, China
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6
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Orimoto G, Yoshida S. Iterative click reactions using trivalent platforms for sequential molecular assembly. Chem Commun (Camb) 2024; 60:5824-5827. [PMID: 38747212 DOI: 10.1039/d4cc01177e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2024]
Abstract
A facile synthesis of multi(triazole)s by iterative click reactions is disclosed. Good functional group tolerance of sequential click assembly by sulfur-fluoride exchange (SuFEx), copper-catalyzed azide-alkyne cycloaddition (CuAAC), and thia-Michael reaction realizes the iterative click reactions. Diverse multi(triazole)-type mid-molecules can be synthesized easily from readily available modules through good chemoselective reactions without functional group transformation steps.
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Affiliation(s)
- Gaku Orimoto
- Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science, 6-3-1 Niijuku, Katsushika-ku, Tokyo 125-8585, Japan.
| | - Suguru Yoshida
- Department of Biological Science and Technology, Faculty of Advanced Engineering, Tokyo University of Science, 6-3-1 Niijuku, Katsushika-ku, Tokyo 125-8585, Japan.
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7
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Xing S, Yu C, Ding L, Li S, Pan G, Jin M, Liu L, Wen S. Fluorination Modification of Methyl Vinyl Silicone Rubber and Its Compatibilization Effect on Fluorine/Silicone Rubber Composites. ACS OMEGA 2024; 9:20388-20396. [PMID: 38737060 PMCID: PMC11080006 DOI: 10.1021/acsomega.4c00015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Revised: 04/12/2024] [Accepted: 04/16/2024] [Indexed: 05/14/2024]
Abstract
Among numerous rubbers, high-performance rubber composites can be obtained by mixing fluororubber (FKM) with excellent oil resistance and silicone rubber (SiR) with excellent low-temperature resistance. While the difference in polarity between these two kinds of rubbers leads to a reduction in the properties of the composites. To solve the compatibility problem between the two-phase interfaces in FKM/SiR composites, in this research, fluorinated silicone rubbers (MVQ-g-PFDT) of methyl vinyl silicone rubber (MVQ) grafted with 1H,1H,2H,2H-perfluorodecanethiol (PFDT) were prepared via a facile and efficient thiol-ene click reaction, which was then added into FKM/SiR composites. The results showed that the fluorine-containing side chains could effectively inhibit the low-temperature crystallization phenomenon of silicone rubber and further broaden its application ranges in low-temperature environments. The properties of FKM/SiR composites with the addition of MVQ-g-PFDT were significantly improved, with the highest tensile strength of 14.1 MPa and the lowest mass change rate of 6.71% after 48h immersion at 200 °C in IRM903 oil. Additionally, the hydroxyl groups between the fluorine-containing side chains of MVQ-g-PFDT and the surface of silica facilitate the enhancement of the uniform dispersion of fillers. Atomic force microscopy (AFM) characterization results showed a distinct enhancement of the compatibility between the two phases of FKM and SiR. This work would provide further insight into efforts to improve compatibility between rubbers with widely different polarities.
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Affiliation(s)
- Shuwen Xing
- State
Key Laboratory of Organic−Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, PR China
- Engineering
Research Center of Elastomer Materials on Energy Conservation and
Resources, Ministry of Education, Beijing 100029, PR China
| | - Chuhui Yu
- State
Key Laboratory of Organic−Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, PR China
- Engineering
Research Center of Elastomer Materials on Energy Conservation and
Resources, Ministry of Education, Beijing 100029, PR China
| | - Lei Ding
- China
State Shipbuilding Corporation Systems Engineering Research Institute, Beijing 100094, PR China
| | - Shuaiqi Li
- State
Key Laboratory of Organic−Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, PR China
- Engineering
Research Center of Elastomer Materials on Energy Conservation and
Resources, Ministry of Education, Beijing 100029, PR China
| | - Gao Pan
- State
Key Laboratory of Organic−Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, PR China
- Engineering
Research Center of Elastomer Materials on Energy Conservation and
Resources, Ministry of Education, Beijing 100029, PR China
| | - Mengyu Jin
- State
Key Laboratory of Organic−Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, PR China
- Engineering
Research Center of Elastomer Materials on Energy Conservation and
Resources, Ministry of Education, Beijing 100029, PR China
| | - Li Liu
- State
Key Laboratory of Organic−Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, PR China
- Engineering
Research Center of Elastomer Materials on Energy Conservation and
Resources, Ministry of Education, Beijing 100029, PR China
| | - Shipeng Wen
- State
Key Laboratory of Organic−Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, PR China
- Engineering
Research Center of Elastomer Materials on Energy Conservation and
Resources, Ministry of Education, Beijing 100029, PR China
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8
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Xu W, Wang Z, Cao H, Zhou L, Jiang N, Ke K, Liu Z, Yang W, Yang M. Optimization of the Thermally Conductive Low- k Polymer Dielectrics Based on Multisource Free-Volume Effects. ACS APPLIED MATERIALS & INTERFACES 2024; 16:16809-16819. [PMID: 38502907 DOI: 10.1021/acsami.4c00553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/21/2024]
Abstract
Polymers/polymer matrix composites possessing low dielectric constants (low-k polymer dielectrics) contribute to the advance of electronics, for instance, microprocessor chips, mobile phone antennas, and data communication terminals. However, the intrinsic long-chain structural characteristic results in poor thermal conductivities, which draw heat accumulation and undermine the outstanding low-k performance of polymers. Herein, multisource free-volume effects that combine two novel kinds of extra free volume with the known in-cage free volume of polyhedral oligomeric silsesquioxanes (POSSs) are discussed to reduce the capacity for dielectric constant reduction. The multisource free-volume effects of POSSs are associated with the thermal conductive network formed by the hexagonal boron nitride (BN) in the polymer matrix. The results show a decent balance between low-k performance (dielectric constant is 2.08 at 1 MHz and 1.98 at 10 GHz) and thermal conductivity (0.555 W m-1 K-1, 4.91 times the matrix). The results provide a new idea to maximize the free-volume effects of POSSs to optimize dielectric properties together with other desired performances for the dielectrics.
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Affiliation(s)
- Weidi Xu
- College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Ziyang Wang
- College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Hong Cao
- College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Ling Zhou
- School of Materials Scence and Engineering, Hubei University of Technology, Wuhan, Hubei 430068, China
| | - Niu Jiang
- College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Kai Ke
- College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Zhengying Liu
- College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Wei Yang
- College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, China
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Mingbo Yang
- College of Polymer Science and Engineering, Sichuan University, Chengdu 610065, China
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
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9
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Rabadán González I, McLean JT, Ostrovitsa N, Fitzgerald S, Mezzetta A, Guazzelli L, O'Shea DF, Scanlan EM. A thiol-ene mediated approach for peptide bioconjugation using 'green' solvents under continuous flow. Org Biomol Chem 2024; 22:2203-2210. [PMID: 38414440 DOI: 10.1039/d4ob00122b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/29/2024]
Abstract
Flow chemistry has emerged as an integral process within the chemical sector permitting energy efficient synthetic scale-up while improving safety and minimising solvent usage. Herein, we report the first applications of the photoactivated, radical-mediated thiol-ene reaction for peptide bioconjugation under continuous flow. Bioconjugation reactions employing deep eutectic solvents, bio-based solvents and fully aqueous systems are reported here for a range of biologically relevant peptide substrates. The use of a water soluble photoinitiator, Irgacure 2959, permitted synthesis of glycosylated peptides in fully aqueous conditions, obviating the need for addition of organic solvents and enhancing the green credentials of these rapid, photoactivated, bioconjugation reactions.
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Affiliation(s)
- Inés Rabadán González
- Trinity Biomedical Sciences Institute, Trinity College Dublin, 152-160 Pearse Street, Dublin 2, Ireland.
| | - Joshua T McLean
- Trinity Biomedical Sciences Institute, Trinity College Dublin, 152-160 Pearse Street, Dublin 2, Ireland.
| | - Nikita Ostrovitsa
- Trinity Biomedical Sciences Institute, Trinity College Dublin, 152-160 Pearse Street, Dublin 2, Ireland.
| | - Sheila Fitzgerald
- Department of Chemistry, RCSI, 123 St Stephen's Green, Dublin 2, Ireland
| | | | | | - Donal F O'Shea
- Department of Chemistry, RCSI, 123 St Stephen's Green, Dublin 2, Ireland
| | - Eoin M Scanlan
- Trinity Biomedical Sciences Institute, Trinity College Dublin, 152-160 Pearse Street, Dublin 2, Ireland.
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10
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Zhao Z, Chua HM, Lai HY, Ng KW. A facile method to fabricate versatile keratin cryogels for tissue engineering applications. Biomed Mater 2024; 19:025048. [PMID: 38364277 DOI: 10.1088/1748-605x/ad2a3f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Accepted: 02/16/2024] [Indexed: 02/18/2024]
Abstract
Human hair keratin (HHK) has been extensively explored as a biomaterial for soft tissue regeneration due to their excellent bioactivity and biocompatibility. The possibility to fabricate HHK into three-dimensional (3D) hydrogels with physical properties resembling soft tissues has been well demonstrated. However, conventional keratin hydrogels often exhibit a dense architecture that could hinder cell filtration. In the present study, HHK-based cryogels were fabricated using a freeze-thaw (FT) method, where oxidized dopamine (ODA) was employed to covalently crosslink thiol/amine rich-keratin molecules at sub-zero temperatures. The obtained HHK-ODA cryogels have micron-sized pores ranging between 100 and 200 μm and mechanical properties that can be tuned by varying the crosslinking density between ODA and HHK. Through optimization of the weight content of ODA and the number of FT cycles, the compressive strengths and stiffnesses of these cryogels achieved 15-fold increments from ∼1.5 kPa to ∼22 kPa and ∼300 Pa to ∼5000 Pa, respectively. The HHK-ODA cryogels competently supported human dermal fibroblast spreading and proliferation. Overall, this study exhibited a facile method to fabricate mechanically superior keratin-based cryogels with cell compatible microarchitecture, circumventing the need for complicated chemical modifications and the use of cytotoxic crosslinkers.
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Affiliation(s)
- Zhitong Zhao
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore
| | - Huei Min Chua
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore
| | - Hui Ying Lai
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore
| | - Kee Woei Ng
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore
- Nanyang Environment and Water Research Institute (NEWRI), Singapore, Singapore
- Skin Research Institute of Singapore (SRIS), Singapore, Singapore
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11
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Bao J, Kang KS, Molineux J, Bischoff DJ, Mackay ME, Pyun J, Njardarson JT. Dithiophosphoric Acids for Polymer Functionalization. Angew Chem Int Ed Engl 2024; 63:e202315963. [PMID: 38225715 DOI: 10.1002/anie.202315963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Indexed: 01/17/2024]
Abstract
Dithiophosphoric acids (DTPAs) are an intriguing class of compounds that are sourced from elemental sulfur and white phosphorus and are prepared from the reaction of phosphorus pentasulfide with alcohols. The electrophilic addition of DTPAs to alkenes and unsaturated olefinic substrates is a known reaction, but has not been applied to polymer synthesis and polymer functionalization. We report on the synthesis and application of DTPAs for the functionalization of challenging poly-enes, namely polyisoprene (PI) and polynorbornene (pNB) prepared by ring-opening metathesis polymerization (ROMP). The high heteroatom content within DTPA moieties impart intriguing bulk properties to poly-ene materials after direct electrophilic addition reactions to the polymer backbone introducing DTPAs as side chain groups. The resulting materials possess both enhanced optical and flame retardant properties vs the poly-ene starting materials. Finally, we demonstrate the ability to prepare crosslinked polydiene films with di-functional DTPAs, where the crosslinking density and thermomechanical properties can be directly tuned by DTPA feed ratios.
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Affiliation(s)
- Jianhua Bao
- Department of Chemistry and Biochemistry, The University of Arizona, Tucson, AZ 85721, USA
| | - Kyung-Seok Kang
- Department of Chemistry and Biochemistry, The University of Arizona, Tucson, AZ 85721, USA
| | - Jake Molineux
- Department of Chemistry and Biochemistry, The University of Arizona, Tucson, AZ 85721, USA
| | - Derek J Bischoff
- Department of Materials Science and Engineering, University of Delaware, Newark, DE 19716, USA
| | - Michael E Mackay
- Department of Materials Science and Engineering, University of Delaware, Newark, DE 19716, USA
| | - Jeffrey Pyun
- Department of Chemistry and Biochemistry, The University of Arizona, Tucson, AZ 85721, USA
| | - Jon T Njardarson
- Department of Chemistry and Biochemistry, The University of Arizona, Tucson, AZ 85721, USA
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12
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Oshinowo M, Piccini M, Kociok-Köhn G, Marken F, Buchard A. Xylose- and Nucleoside-Based Polymers via Thiol-ene Polymerization toward Sugar-Derived Solid Polymer Electrolytes. ACS APPLIED POLYMER MATERIALS 2024; 6:1622-1632. [PMID: 38357438 PMCID: PMC10862469 DOI: 10.1021/acsapm.3c02119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 01/07/2024] [Accepted: 01/08/2024] [Indexed: 02/16/2024]
Abstract
A series of copolymers have been prepared via thiol-ene polymerization of bioderived α,ω-unsaturated diene monomers with dithiols toward application as solid polymer electrolytes (SPEs) for Li+-ion conduction. Amorphous polyesters and polyethers with low Tg's (-31 to -11 °C) were first prepared from xylose-based monomers (with varying lengths of fatty acid moiety) and 2,2'-(ethylenedioxy)diethanethiol (EDT). Cross-linking by incorporation of a trifunctional monomer also produced a series of SPEs with ionic conductivities up to 2.2 × 10-5 S cm-1 at 60 °C and electrochemical stability up to 5.08 V, a significant improvement over previous xylose-derived materials. Furthermore, a series of copolymers bearing nucleoside moieties were prepared to exploit the complementary base-pairing interaction of nucleobases. Flexible, transparent, and reprocessable SPE films were thus prepared with improved ionic conductivity (up to 1.5 × 10-4 S cm-1 at 60 °C), hydrolytic degradability, and potential self-healing capabilities.
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Affiliation(s)
- Matthew Oshinowo
- Department
of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K.
- University
of Bath Institute for Sustainability, Claverton Down, Bath BA2
7AY, U.K.
| | - Marco Piccini
- Department
of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K.
- University
of Bath Institute for Sustainability, Claverton Down, Bath BA2
7AY, U.K.
| | - Gabriele Kociok-Köhn
- Materials
and Chemical Characterisation Facility (MC2), University of Bath, Claverton Down, Bath BA2
7AY, U.K.
| | - Frank Marken
- Department
of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K.
- University
of Bath Institute for Sustainability, Claverton Down, Bath BA2
7AY, U.K.
| | - Antoine Buchard
- Department
of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K.
- University
of Bath Institute for Sustainability, Claverton Down, Bath BA2
7AY, U.K.
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13
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Hu J, Wang W, Zhou B, Sun J, Chin WS, Lu L. Click Chemistry in Lithium-Metal Batteries. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2306622. [PMID: 37806765 DOI: 10.1002/smll.202306622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 09/27/2023] [Indexed: 10/10/2023]
Abstract
Lithium-metal batteries (LMBs) are considered the "holy grail" of the next-generation energy storage systems, and solid-state electrolytes (SSEs) are a kind of critical component assembled in LMBs. However, as one of the most important branches of SSEs, polymer-based electrolytes (PEs) possess several native drawbacks including insufficient ionic conductivity and so on. Click chemistry is a simple, efficient, regioselective, and stereoselective synthesis method, which can be used not only for preparing PEs with outstanding physical and chemical performances, but also for optimizing the stability of solid electrolyte interphase (SEI) layer and elevate the cycling properties of LMBs effectively. Here it is primarily focused on evaluating the merits of click chemistry, summarizing its existing challenges and outlining its increasing role for the designing and fabrication of advanced PEs. The fundamental requirements for reconstructing artificial SEI layer through click chemistry are also summarized, with the aim to offer a thorough comprehension and provide a strategic guidance for exploring the potentials of click chemistry in the field of LMBs.
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Affiliation(s)
- Ji Hu
- School of Materials Science and Engineering, School of Environmental Engineering and Chemistry, Luoyang Institute of Science and Technology, Luoyang, 471023, China
- Henan Province International Joint Laboratory of Materials for Solar Energy Conversion and Lithium Sodium based Battery, Luoyang Institute of Science and Technology, Luoyang, 471023, China
| | - Wanhui Wang
- School of Materials Science and Engineering, School of Environmental Engineering and Chemistry, Luoyang Institute of Science and Technology, Luoyang, 471023, China
| | - Binghua Zhou
- Institute of Advanced Materials, State-Province Joint Engineering Laboratory of Zeolite Membrane Materials, National Engineering Research Center for Carbohydrate Synthesis, Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, Jiangxi Normal University, Nanchang, 330022, China
| | - Jianguo Sun
- Department of Mechanical Engineering, Department of Chemistry, National University of Singapore, Singapore, 117575, Singapore
| | - Wee Shong Chin
- Department of Mechanical Engineering, Department of Chemistry, National University of Singapore, Singapore, 117575, Singapore
- National University of Singapore (Chongqing) Research Institute, Chongqing, 401123, China
| | - Li Lu
- Department of Mechanical Engineering, Department of Chemistry, National University of Singapore, Singapore, 117575, Singapore
- National University of Singapore (Chongqing) Research Institute, Chongqing, 401123, China
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14
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Park JH, Hwang SH. A Polyolefin Elastomer Encapsulant Modified by an Ethylene-Propylene-Diene Terpolymer for Photovoltaic Applications. ACS OMEGA 2024; 9:3858-3865. [PMID: 38284050 PMCID: PMC10809238 DOI: 10.1021/acsomega.3c07969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 12/20/2023] [Accepted: 12/26/2023] [Indexed: 01/30/2024]
Abstract
In this study, a newly designed adhesion promoter, a modified ethylene-propylene-diene terpolymer (m-EPDM), was constructed via a simple thiol-ene click reaction between the ethylene-propylene-diene terpolymer (EPDM) and 3-mercaptopropyltrimethoxysilane (MPTS) to employ polyolefin elastomer (POE) encapsulants in photovoltaic modules. The grafting reaction of MPTS on an EPDM backbone (thiol-ene click reaction) was verified using 1H NMR, 29Si NMR, and SEM/EDX. The thermal and mechanical characteristics of the POE compounds did not significantly change with an increasing m-EPDM content irrespective of the cross-linking state. Interestingly, the adhesion strength to the glass substrate increased linearly with an increasing m-EPDM content until 9 phr. Also, the POE compounds containing more than 12 phr m-EPDM showed cohesion failure of the encapsulant layer, remaining as a residue of the encapsulant layer on the glass surface after peel testing. The damp-heat test was conducted to evaluate the long-term durability of the photovoltaic module encapsulated with m-EPDM, and no significant power loss was found even after 1000 h under the test conditions.
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Affiliation(s)
- Jin Hwan Park
- Materials Chemistry &
Engineering Laboratory, Department of Polymer Science and Engineering, Dankook University, Yongin, Gyeonggi-do 16890, Korea
| | - Seok-Ho Hwang
- Materials Chemistry &
Engineering Laboratory, Department of Polymer Science and Engineering, Dankook University, Yongin, Gyeonggi-do 16890, Korea
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15
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Lipilin DL, Zubkov MO, Kosobokov MD, Dilman AD. Direct conversion of carboxylic acids to free thiols via radical relay acridine photocatalysis enabled by N-O bond cleavage. Chem Sci 2024; 15:644-650. [PMID: 38179514 PMCID: PMC10762721 DOI: 10.1039/d3sc05513b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 12/04/2023] [Indexed: 01/06/2024] Open
Abstract
Carboxylic acids and thiols are basic chemical compounds with diverse utility and widespread reactivity. However, the direct conversion of unprotected acids to thiols is hampered due to a fundamental problem - free thiols are incompatible with the alkyl radicals formed on decarboxylation of carboxylic acids. Herein, we describe a concept for the direct photocatalytic thiolation of unprotected acids allowing unprotected thiols and their derivatives to be obtained. The method is based on the application of a thionocarbonate reagent featuring the N-O bond. The reagent serves both for the rapid trapping of alkyl radicals and for the facile regeneration of the acridine-type photocatalyst.
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Affiliation(s)
- Dmitry L Lipilin
- N. D. Zelinsky Institute of Organic Chemistry Leninsky Prosp. 47 119991 Moscow Russian Federation
| | - Mikhail O Zubkov
- N. D. Zelinsky Institute of Organic Chemistry Leninsky Prosp. 47 119991 Moscow Russian Federation
| | - Mikhail D Kosobokov
- N. D. Zelinsky Institute of Organic Chemistry Leninsky Prosp. 47 119991 Moscow Russian Federation
| | - Alexander D Dilman
- N. D. Zelinsky Institute of Organic Chemistry Leninsky Prosp. 47 119991 Moscow Russian Federation
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16
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Wang C, Huang F, Huang X, Lu G, Feng C. A Versatile Platform to Generate Shell-Cross-Linked Uniform Π-Conjugated Nanofibers with Controllable Length, High Morphological Stability, and Facile Surface Tailorability. Macromol Rapid Commun 2024; 45:e2300482. [PMID: 37922939 DOI: 10.1002/marc.202300482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 10/28/2023] [Indexed: 11/07/2023]
Abstract
Living crystallization-driven self-assembly (CDSA) has emerged as an efficient route to generate π-conjugated-polymer-based nanofibers (CPNFs) with promising applications from photocatalysis to biomedicine. However, the lack of efficient tools to endow CPNFs with morphological stability and surface tailorability becomes a frustrating hindrance for expanding application spectrum of CPNFs. Herein, a facile strategy to fabricate length-controllable OPV-based (OPV = oligo(p-phenylenevinylene)) CPNFs containing a cross-linked shell with high morphological stability and facile surface tailorability through the combination of living CDSA and thiol-ene chemistry by using OPV5 -b-PNAAM32 (PNAAM = poly(N-allyl acrylamide)) as a model is reported. Uniform fiber-like micelles with tunable length can be generated by self-seeding of living CDSA. By taking advantage of radical thiol-ene reaction between vinyls of PNAAM corona and four-arm thiols, the shell of micelles can be cross-linked with negligible destruction of structure of vinylene-containing OPV core. The resulting micelles show high morphological stability in NaCl solution and PBS buffer, even upon heating at 80 °C. The introduced extra thiol groups in the cross-linked shell can be further employed to install extra functional moieties via convenient thiol-Michael-type reaction. Given the negligible cytotoxicity of resulting CPNFs, this strategy opens an avenue to fabricate various CPNFs of diverse functionalities for biomedicine.
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Affiliation(s)
- Chen Wang
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, P. R. China
| | - Fengfeng Huang
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, P. R. China
| | - Xiaoyu Huang
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, P. R. China
| | - Guolin Lu
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, P. R. China
| | - Chun Feng
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, P. R. China
- Shanghai Key Laboratory of Advanced Polymeric Materials, School of Materials Science and Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, P. R. China
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17
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Kalinova R, Mladenova K, Petrova S, Doumanov J, Dimitrov I. Solvent-Free Synthesis of Multifunctional Block Copolymer and Formation of DNA and Drug Nanocarriers. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2936. [PMID: 37999289 PMCID: PMC10675335 DOI: 10.3390/nano13222936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 11/10/2023] [Accepted: 11/11/2023] [Indexed: 11/25/2023]
Abstract
The synthesis of well-defined multifunctional polymers is of great importance for the development of complex materials for biomedical applications. In the current work, novel and multi-amino-functional diblock copolymer for potential gene and drug delivery applications was successfully synthesized. A highly efficient one-step and quantitative modification of an alkyne-functional polycarbonate-based precursor was performed, yielding double hydrophilic block copolymer with densely grafted primary amine side groups. The obtained positively charged block copolymer co-associated with DNA, forming stable and biocompatible nanosized polyplexes. Furthermore, polyion complex (PIC) micelles with tunable surface charge and decorated with cell targeting moieties were obtained as a result of direct mixing in aqueous media of the multi-amino-functional block copolymer and a previously synthesized oppositely charged block copolymer bearing disaccharide end-group. The obtained well-defined nanosized PIC-micelles were loaded with the hydrophobic drug curcumin. Both types of nanoaggregates (polyplexes and PIC-micelles) were physico-chemically characterized. Moreover, initial in vitro evaluations were performed to assess the nanocarriers' potential for biomedical applications.
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Affiliation(s)
- Radostina Kalinova
- Institute of Polymers, Bulgarian Academy of Sciences, Academician Georgi Bonchev St., bl. 103-A, 1113 Sofia, Bulgaria
| | - Kirilka Mladenova
- Department of Biochemistry, Faculty of Biology, Sofia University “St. Kliment Ohridski”, 8 Dragan Tzankov Blvd., 1164 Sofia, Bulgaria; (K.M.); (S.P.); (J.D.)
| | - Svetla Petrova
- Department of Biochemistry, Faculty of Biology, Sofia University “St. Kliment Ohridski”, 8 Dragan Tzankov Blvd., 1164 Sofia, Bulgaria; (K.M.); (S.P.); (J.D.)
| | - Jordan Doumanov
- Department of Biochemistry, Faculty of Biology, Sofia University “St. Kliment Ohridski”, 8 Dragan Tzankov Blvd., 1164 Sofia, Bulgaria; (K.M.); (S.P.); (J.D.)
| | - Ivaylo Dimitrov
- Institute of Polymers, Bulgarian Academy of Sciences, Academician Georgi Bonchev St., bl. 103-A, 1113 Sofia, Bulgaria
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18
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Morrison TX, Gramlich WM. Tunable, thiol-ene, interpenetrating network hydrogels of norbornene-modified carboxymethyl cellulose and cellulose nanofibrils. Carbohydr Polym 2023; 319:121173. [PMID: 37567714 DOI: 10.1016/j.carbpol.2023.121173] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 06/25/2023] [Accepted: 06/30/2023] [Indexed: 08/13/2023]
Abstract
Carboxymethyl cellulose modified with norbornene groups (NorCMC) and cellulose nanofibrils (CNFs) produced through mechanical refining without chemical pretreatment formed interpenetrating network hydrogels through a UV-light initiated thiol-ene reaction. The molar ratio of thiols in crosslinkers to norbornene groups off the NorCMC (T:N), total polymer weight percent in the hydrogel, and weight percent of CNFs of the total polymer content of the hydrogels were varied to control hydrogel properties. This method enabled orders of magnitude changes to behavior. Swelling in aqueous environments could be significant (>150 %) without CNFs to minimal (<15 %) with the use of 50 % CNFs. NorCMC and CNF networks interacted synergistically to create hydrogels with compression modulus values spanning 1 to 150 kPa - the values of most biological tissues. T:N and total polymer weight percent could be varied to create hydrogels with different CNF content, but the same compression modulus, targeting 10 and 100 kPa hydrogels and providing a system that can independently vary fibrillar content and bulk modulus. Analysis of the effective crosslinks, thiol-ene network mesh size, and burst release of the polymer indicated synergistic interactions of the NorCMC thiol-ene and CNFs networks. These interactions enhanced modulus and degradation control of the network under physiological conditions.
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Affiliation(s)
| | - William M Gramlich
- Department of Chemistry, University of Maine, Orono, ME 04469, USA; Advanced Structures and Composites Center, University of Maine, Orono, ME 04469, USA; Institute of Medicine, University of Maine, Orono, ME 04469, USA.
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19
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You L. Dual reactivity based dynamic covalent chemistry: mechanisms and applications. Chem Commun (Camb) 2023; 59:12943-12958. [PMID: 37772969 DOI: 10.1039/d3cc04022d] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/30/2023]
Abstract
Dynamic covalent chemistry (DCC) focuses on the reversible formation, breakage, and exchange of covalent bonds and assemblies, setting a bridge between irreversible organic synthesis and supramolecular chemistry and finding wide utility. In order to enhance structural and functional diversity and complexity, different types of dynamic covalent reactions (DCRs) are placed in one vessel, encompassing orthogonal DCC without crosstalk and communicating DCC with a shared reactive functional group. As a means of adding tautomers, widespread in chemistry, to interconnected DCRs and combining the features of orthogonal and communicating DCRs, a concept of dual reactivity based DCC and underlying structural and mechanistic insights are summarized. The manipulation of the distinct reactivity of structurally diverse ring-chain tautomers allows selective activation and switching of reaction pathways and corresponding DCRs (C-N, C-O, and C-S) and assemblies. The coupling with photoswitches further enables light-mediated formation and scission of multiple types of reversible covalent bonds. To showcase the capability of dual reactivity based DCC, the versatile applications in dynamic polymers and luminescent materials are presented, paving the way for future functionalization studies.
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Affiliation(s)
- Lei You
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China.
- University of Chinese Academy of Sciences, Beijing 100049, China
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou 350108, China
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20
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Bhadoria P, Ramanathan V. Sulfur Centered Hydrogen Bonding in Thioglycolic Acid and Its Clusters: A Computational Exploration. J Phys Chem A 2023; 127:8095-8109. [PMID: 37738172 DOI: 10.1021/acs.jpca.3c04258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/24/2023]
Abstract
The conformational landscape of thioglycolic acid (TGA) was investigated by using the CCSD/cc-pVTZ level of theory. The GGC conformer was identified as the global minimum, followed by the GAC conformer. The calculated rotational constant for the GGC conformer exhibited good agreement with the previously reported experimental results. Subsequently, the study delved into the exploration of sulfur-centered hydrogen bonding in TGA's dimer and trimer clusters, employing the CCSD/cc-pVDZ level of theory. These clusters revealed the participation of both oxygen and sulfur atoms in noncovalent H-bonding, contributing to their stability. The presence of these noncovalent interactions in TGA clusters was elucidated through Atoms in Molecule (AIM), reduced density gradient (RDG), and natural bond order (NBO) analysis, while electrostatic potential (ESP) charge and vibrational mode analysis further supported these findings.
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Affiliation(s)
- Poonam Bhadoria
- Department of Chemistry, Indian Institute of Technology (BHU) Varanasi, Uttar Pradesh 221005, India
| | - Venkatnarayan Ramanathan
- Department of Chemistry, Indian Institute of Technology (BHU) Varanasi, Uttar Pradesh 221005, India
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21
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Fan Y, Zhang Y, Sheng L, Chen D, Ma Y, Zhao C, Yang W. UV-Induced Thiol-Ene "Click" Surface Grafting Polymerization on BOPP Substrate and Its Postmodifying for Hydrophilic and Antibacterial Applications. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:13908-13920. [PMID: 37737879 DOI: 10.1021/acs.langmuir.3c01448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/23/2023]
Abstract
This paper proposed a novel and versatile surface modification route by integrating UV light-mediated thiol-ene "click" surface grafting polymerization and postmodification via the reactions of the surface thiol groups. At first, poly(thiol ether) layers with tunable thiol group density, up to 8.2 × 102 ea/nm3 for cross-linked grafting layers, were grafted from biaxially oriented polypropylene (BOPP) film. Then, the surface -SH groups reacted with epoxy compounds to introduce quaternary ammonium salt. With the immobilized quaternary ammonium salt and coordinated Zn2+ ions, the modified film demonstrated 99.98% antibacterial rate against Staphylococcus aureusafter soaking in DI water for 21 days and in a highly alkaline environment (0.1 M NaOH aqueous solution) for 3 days, and the surface water contact angle decreased to 39°. At last, the polymethacrylate chains were also successfully grafted from the surface thiol groups of the cross-linked poly(thiol ether) under visible light irradiation. With 2-(dimethyldodecylammonium) ethyl methacrylate as the grafting monomer, the modified BOPP film had shown a 99.99% antibacterial rate against both Escherichia coliand S. aureus. Meanwhile, with 2-methacryloxyethyl phosphoryl choline as grafting monomer, the modified surface showed an excellent antibioadhesion of living S. aureus, and the surface water contact angle was as low as 48°.
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Affiliation(s)
- Yuqing Fan
- Beijing Engineering Research Center of Syntheses and Applications of Waterborne Polymers, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Yuan Zhang
- Beijing Engineering Research Center of Syntheses and Applications of Waterborne Polymers, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Lin Sheng
- Beijing Engineering Research Center of Syntheses and Applications of Waterborne Polymers, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Dong Chen
- Beijing Engineering Research Center of Syntheses and Applications of Waterborne Polymers, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Yuhong Ma
- Beijing Engineering Research Center of Syntheses and Applications of Waterborne Polymers, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Changwen Zhao
- Beijing Engineering Research Center of Syntheses and Applications of Waterborne Polymers, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Wantai Yang
- Beijing Engineering Research Center of Syntheses and Applications of Waterborne Polymers, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
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22
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Kaur A, Gautrot JE, Akutagawa K, Watson D, Bickley A, Busfield JJC. Thiyl radical induced cis/ trans isomerism in double bond containing elastomers. RSC Adv 2023; 13:23967-23975. [PMID: 37577099 PMCID: PMC10413178 DOI: 10.1039/d3ra04157c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 08/02/2023] [Indexed: 08/15/2023] Open
Abstract
This report presents an evaluation of thiyl radical-induced cis/trans isomerism in double bond-containing elastomers, such as natural, polychloroprene, and polybutadiene rubbers. The study aims to extensively investigate structural changes in polymers after functionalisation using thiol-ene chemistry, a useful click reaction for modifying polymers and developing materials with new functionalities. The paper reports on the use of different thiols, and cis/trans isomerism was detected through 1H NMR analysis, even at very low alkene/thiol mole ratios. The study finds that the configurational arrangements between non-functionalised elastomer units and thiolated units followed a trans-functionalised-cis units arrangement up to an alkene/thiol mole feed ratio of 0.3, while from 0.4 onward, a combination of trans-functionalised-cis and cis-functionalised-trans configurations are found. Additionally, it is observed that by increasing the level of functionalisation, the glass transition temperature of the resulting modified elastomer also increases. Overall, this study provides valuable insights into the effects of thiol-ene chemistry on the structure and properties of elastomers and could have important implications for the development of new materials with enhanced functionality.
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23
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Pirela V, Elgoyhen J, Tomovska R, Martín J, Le CMQ, Chemtob A, Bessif B, Heck B, Reiter G, Müller AJ. Unraveling the Complex Polymorphic Crystallization Behavior of the Alternating Copolymer DMDS- alt-DVE. ACS APPLIED POLYMER MATERIALS 2023; 5:5260-5269. [PMID: 37469882 PMCID: PMC10353521 DOI: 10.1021/acsapm.3c00684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 05/26/2023] [Indexed: 07/21/2023]
Abstract
A complex crystallization behavior was observed for the alternating copolymer DMDS-alt-DVE synthesized via thiol-ene step-growth polymerization. Understanding the underlying complex crystallization processes of such innovative polythioethers is critical for their application, for example, in polymer coating technologies. These alternating copolymers have polymorphic traits, resulting in different phases that may display distinct crystalline structures. The copolymer DMDS-alt-DVE was studied in an earlier work, where only two crystalline phases were reported: a low melting, L - Tm, and high melting, H - Tm phase. Remarkably, the H - Tm form was only achieved by the previous formation and melting of the L - Tm form. We applied calorimetric techniques encompassing seven orders of magnitude in scanning rates to further explore this complex polymorphic behavior. Most importantly, by rapidly quenching the sample to temperatures well below room temperature, we detected an additional polymorphic form (characterized by a very low melting phase, denoted VL - Tm). Moreover, through tailored thermal protocols, we successfully produced samples containing only one, two, or all three polymorphs, providing insights into their interrelationships. Understanding polymorphism, crystallization, and the resulting morphological differences can have significant implications and potential impact on mechanical resistance and barrier properties.
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Affiliation(s)
- Valentina Pirela
- POLYMAT and Department of Polymers and Advanced Materials: Physics, Chemistry, and Technology, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizabal 3, Donostia-San Sebastián 20018, Spain
| | - Justine Elgoyhen
- POLYMAT and Department of Polymers and Advanced Materials: Physics, Chemistry, and Technology, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizabal 3, Donostia-San Sebastián 20018, Spain
| | - Radmila Tomovska
- POLYMAT and Department of Polymers and Advanced Materials: Physics, Chemistry, and Technology, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizabal 3, Donostia-San Sebastián 20018, Spain
- IKERBASQUE, Basque Foundation for Science, Plaza Euskadi 5, Bilbao 48009, Spain
| | - Jaime Martín
- POLYMAT and Department of Polymers and Advanced Materials: Physics, Chemistry, and Technology, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizabal 3, Donostia-San Sebastián 20018, Spain
- IKERBASQUE, Basque Foundation for Science, Plaza Euskadi 5, Bilbao 48009, Spain
- Campus Industrial de Ferrol, CITENI, Esteiro, Universidade da Coruña, Ferrol 15403, Spain
| | - Cuong Minh Quoc Le
- Institut de Sciences des Matériaux de Mulhouse (IS2M), UMR CNRS 7361, Université de Haute-Alsace, 15 rue Jean Starcky, Mulhouse, Cedex 68057, France
| | - Abraham Chemtob
- Institut de Sciences des Matériaux de Mulhouse (IS2M), UMR CNRS 7361, Université de Haute-Alsace, 15 rue Jean Starcky, Mulhouse, Cedex 68057, France
| | - Brahim Bessif
- Institute of Physics, University of Freiburg, Hermann-Herder-Str. 3, Freiburg 79104, Germany
| | - Barbara Heck
- Institute of Physics, University of Freiburg, Hermann-Herder-Str. 3, Freiburg 79104, Germany
| | - Günter Reiter
- Institute of Physics, University of Freiburg, Hermann-Herder-Str. 3, Freiburg 79104, Germany
| | - Alejandro J Müller
- POLYMAT and Department of Polymers and Advanced Materials: Physics, Chemistry, and Technology, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel de Lardizabal 3, Donostia-San Sebastián 20018, Spain
- IKERBASQUE, Basque Foundation for Science, Plaza Euskadi 5, Bilbao 48009, Spain
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24
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Freire N, Barbosa RDM, García-Villén F, Viseras C, Perioli L, Fialho R, Albuquerque E. Environmentally Friendly Strategies for Formulating Vegetable Oil-Based Nanoparticles for Anticancer Medicine. Pharmaceutics 2023; 15:1908. [PMID: 37514094 PMCID: PMC10386571 DOI: 10.3390/pharmaceutics15071908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 07/03/2023] [Accepted: 07/05/2023] [Indexed: 07/30/2023] Open
Abstract
The development of green synthesized polymeric nanoparticles with anticancer studies has been an emerging field in academia and the pharmaceutical and chemical industries. Vegetable oils are potential substitutes for petroleum derivatives, as they present a clean and environmentally friendly alternative and are available in abundance at relatively low prices. Biomass-derived chemicals can be converted into monomers with a unique structure, generating materials with new properties for the synthesis of sustainable monomers and polymers. The production of bio-based polymeric nanoparticles is a promising application of green chemistry for biomedical uses. There is an increasing demand for biocompatible and biodegradable materials for specific applications in the biomedical area, such as cancer therapy. This is encouraging scientists to work on research toward designing polymers with enhanced properties and clean processes, containing oncology active pharmaceutical ingredients (APIs). The nanoencapsulation of these APIs in bio-based polymeric nanoparticles can control the release of the substances, increase bioavailability, reduce problems of volatility and degradation, reduce side effects, and increase treatment efficiency. This review discusses the use of green chemistry for bio-based nanoparticle production and its application in anticancer medicine. The use of castor oil for the production of renewable monomers and polymers is proposed as an ideal candidate for such applications, as well as more suitable methods for the production of bio-based nanoparticles and some oncology APIs available for anticancer application.
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Affiliation(s)
- Nathália Freire
- Graduate Program in Industrial Engineering, Polytechnic School, Federal University of Bahia, Salvador 40210-630, Brazil
| | - Raquel de Melo Barbosa
- Laboratory of Drug Development, Department of Pharmacy, Federal University of Rio Grande do Norte, Natal 59012-570, Brazil
| | - Fátima García-Villén
- Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy, University of Granada, Campus of Cartuja, 18071 Granada, Spain
| | - César Viseras
- Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy, University of Granada, Campus of Cartuja, 18071 Granada, Spain
- Andalusian Institute of Earth Sciences, CSIC-University of Granada, Av. de las Palmeras 4, Armilla, 18100 Granada, Spain
| | - Luana Perioli
- Department of Pharmaceutic Science, University of Perugia, 06123 Perugia, Italy
| | - Rosana Fialho
- Graduate Program in Industrial Engineering, Polytechnic School, Federal University of Bahia, Salvador 40210-630, Brazil
| | - Elaine Albuquerque
- Graduate Program in Industrial Engineering, Polytechnic School, Federal University of Bahia, Salvador 40210-630, Brazil
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25
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Kawatani R, Hagiwara K, Tanaka A, Kohsaka Y. Polythioethers bearing side groups for efficient degradation by E1cB reaction: reaction design for polymerization and main-chain scission. RSC Adv 2023; 13:20782-20786. [PMID: 37435381 PMCID: PMC10332248 DOI: 10.1039/d3ra03751g] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 06/23/2023] [Indexed: 07/13/2023] Open
Abstract
We have previously reported the polycondensation by the tandem reactions of dithiols and α-(bromomethyl)acrylates, consisting of conjugate substitution (SN2' reaction) and conjugate addition (Michael addition) reactions. The resulting polythioethers underwent a main-chain scission (MCS) by E1cB reaction, which is the reverse reaction of conjugate addition, although it was not quantitative due to the equilibrium. Herein, the modification of the structures of polythioethers led to irreversible MCS, whereby the β-positions of ester moieties were substituted with a phenyl group. This slight modification in the polymer structure influenced the monomer structures and polymerization mechanisms. The understanding of reaction mechanisms by model reactions was required to obtain high molecular weights of polythioethers. It was clarified that the consequent additions of 1,4-diazabicyclo[2.2.2]octane (DABCO), 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU), and PBu3 were effective to achieve high molecular weight. The resulting polythioethers decomposed by irreversible MCS via E1cB reaction with DBU.
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Affiliation(s)
- Ryo Kawatani
- Faculty of Textile Science and Technology, Shinshu University 3-15-1 Tokida Ueda Nagano 386-8567 Japan
| | - Keito Hagiwara
- Faculty of Textile Science and Technology, Shinshu University 3-15-1 Tokida Ueda Nagano 386-8567 Japan
| | - Anri Tanaka
- Faculty of Textile Science and Technology, Shinshu University 3-15-1 Tokida Ueda Nagano 386-8567 Japan
| | - Yasuhiro Kohsaka
- Faculty of Textile Science and Technology, Shinshu University 3-15-1 Tokida Ueda Nagano 386-8567 Japan
- Research Initiative for Supra-Materials (RISM), Interdisciplinary Cluster for Cutting Edge Research (ICCER), Shinshu University 4-17-1 Wakasato Nagano City Nagano 380-8553 Japan
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26
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Lu H, Ye H, Zhang M, Liu Z, Zou H, You L. Photoswitchable dynamic conjugate addition-elimination reactions as a tool for light-mediated click and clip chemistry. Nat Commun 2023; 14:4015. [PMID: 37419874 DOI: 10.1038/s41467-023-39669-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 06/22/2023] [Indexed: 07/09/2023] Open
Abstract
Phototriggered click and clip reactions can endow chemical processes with high spatiotemporal resolution and sustainability, but are challenging with a limited scope. Herein we report photoswitchable reversible covalent conjugate addition-elimination reactions toward light-addressed modular covalent connection and disconnection. By coupling between photochromic dithienylethene switch and Michael acceptors, the reactivity of Michael reactions was tuned through closed-ring and open-ring forms of dithienylethene, allowing switching on and off dynamic exchange of a wide scope of thiol and amine nucleophiles. The breaking of antiaromaticity in transition states and enol intermediates of addition-elimination reactions provides the driving force for photoinduced change in kinetic barriers. To showcase the versatile application, light-mediated modification of solid surfaces, regulation of amphiphilic assemblies, and creation/degradation of covalent polymers on demand were achieved. The manipulation of dynamic click/clip reactions with light should set the stage for future endeavors, including responsive assemblies, biological delivery, and intelligent materials.
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Affiliation(s)
- Hanwei Lu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 350002, Fuzhou, Fujian, China
- University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Hebo Ye
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 350002, Fuzhou, Fujian, China
| | - Meilan Zhang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 350002, Fuzhou, Fujian, China
| | - Zimu Liu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 350002, Fuzhou, Fujian, China
| | - Hanxun Zou
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 350002, Fuzhou, Fujian, China
| | - Lei You
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 350002, Fuzhou, Fujian, China.
- University of Chinese Academy of Sciences, 100049, Beijing, China.
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, 350002, Fuzhou, Fujian, China.
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27
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McKenzie TJ, Cawood C, Davis C, Ayres N. Synthesis of patterned polyHIPE-hydrogel composite materials using thiol-ene chemistry. J Colloid Interface Sci 2023; 645:502-512. [PMID: 37159992 DOI: 10.1016/j.jcis.2023.04.132] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 04/17/2023] [Accepted: 04/24/2023] [Indexed: 05/11/2023]
Abstract
Elastomeric materials combining multiple properties within a single composite are highly desired in applications including biomaterials interfaces, actuators, and soft robotics. High spatial resolution is required to impart different properties across the composite for the intended application, but many techniques used to prepare these composites rely on multistep and complex methods. There is a need for the development of simple and efficient platforms to design layered composite materials. Here, we report the synthesis of horizontally- and vertically-patterned composites consisting of PDMS-based polymerized high internal phase emulsion (polyHIPE) porous elastomers and PDMS/PEG hydrogels. Composites with defined interfaces that were mechanically robust were prepared, and rheological analysis of the polyHIPE and hydrogel layers showed storage moduli values of ∼ 35 kPa and 45 kPa respectively. The compressive Young's Modulus and maximum strain of the polyHIPEs were dependent on the thiol to ene ratio in the formulation and obtained values ranging from 6 to 25 kPa and 50-65% respectively. The mechanical properties, total porosity of the polyHIPE, and swelling ratio of the hydrogel were unaffected by the patterning technique compared to non-patterned controls. PolyHIPE-hydrogel composite materials having up to 7-different horizontally pattered layers could be prepared that could expand and contract up hydration and drying.
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Affiliation(s)
- Tucker J McKenzie
- Department of Chemistry, The University of Cincinnati, P.O. Box 210172, Cincinnati, OH 45221, United States
| | - Christian Cawood
- Department of Chemistry, The University of Cincinnati, P.O. Box 210172, Cincinnati, OH 45221, United States
| | - Chelsea Davis
- Department of Chemistry, The University of Cincinnati, P.O. Box 210172, Cincinnati, OH 45221, United States
| | - Neil Ayres
- Department of Chemistry, The University of Cincinnati, P.O. Box 210172, Cincinnati, OH 45221, United States.
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28
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Röhrl M, Ködel JF, Timmins RL, Callsen C, Aksit M, Fink MF, Seibt S, Weidinger A, Battagliarin G, Ruckdäschel H, Schobert R, Breu J, Biersack B. New Functional Polymer Materials via Click Chemistry-Based Modification of Cellulose Acetate. ACS OMEGA 2023; 8:9889-9895. [PMID: 36969451 PMCID: PMC10034841 DOI: 10.1021/acsomega.2c06811] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Accepted: 01/17/2023] [Indexed: 06/18/2023]
Abstract
Cellulose acetate (CA) was partially acrylated, and the resulting cellulose acetate acrylate (acryl-substitution degree of 0.2) underwent quantitative thio-Michael click reactions with various thiols. A toolbox of functional CA polymers was obtained in this way, and their properties were studied. The modification with fatty alkyl thiols led to hydrophobic materials with large water drop contact angles. Octadecylthio-, butoxycarbonylpropylthio-, and furanylthio-modifications formed highly transparent materials. The new derivative CAASFur disintegrated completely under industrial composting conditions. Films of modified CA polymers were cast and investigated in terms of barrier properties. The nanocomposite of CAAS18 compounded with a synthetic layered silicate (hectorite) of a large aspect ratio showed permeabilities as low as 0.09 g mm m-2 day-1 for water vapor and 0.16 cm3 mm m-2 day-1 atm-1 for oxygen. This portfolio of functional CA polymers opens the door to new applications.
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Affiliation(s)
- Maximilian Röhrl
- Inorganic
Chemistry 1, University of Bayreuth, Universitätsstrasse 30, 95440 Bayreuth, Germany
| | - Justus F. Ködel
- Fachgruppe
Chemie, Wirtschaftswissenschaftliches und
Naturwissenschaftlich-Technologisches Gymnasium Bayreuth, Am Sportpark 1, 95448 Bayreuth, Germany
| | - Renee L. Timmins
- Inorganic
Chemistry 1, University of Bayreuth, Universitätsstrasse 30, 95440 Bayreuth, Germany
| | - Christoph Callsen
- Department
of Polymer Engineering, Faculty of Engineering Science, University of Bayreuth, Universitätsstrasse 30, 95440 Bayreuth, Germany
| | - Merve Aksit
- Department
of Polymer Engineering, Faculty of Engineering Science, University of Bayreuth, Universitätsstrasse 30, 95440 Bayreuth, Germany
| | - Michael F. Fink
- Chair
of Electrochemical Process Engineering, Faculty of Engineering Science, University of Bayreuth, Universitätsstrasse 30, 95447 Bayreuth, Germany
| | - Sebastian Seibt
- Linseis
Messgeräte GmbH, Vielitzerstrasse 43, 95100 Selb, Germany
| | - Andy Weidinger
- Fachgruppe
Chemie, Wirtschaftswissenschaftliches und
Naturwissenschaftlich-Technologisches Gymnasium Bayreuth, Am Sportpark 1, 95448 Bayreuth, Germany
| | - Glauco Battagliarin
- Biopolymers
and Biodegradability Research, BASF, Carl-Bosch-Str. 38, 67056 Ludwigshafen am Rhein, Germany
| | - Holger Ruckdäschel
- Department
of Polymer Engineering, Faculty of Engineering Science, University of Bayreuth, Universitätsstrasse 30, 95440 Bayreuth, Germany
| | - Rainer Schobert
- Organic
Chemistry 1, University of Bayreuth, Universitätsstrasse 30, 95440 Bayreuth, Germany
| | - Josef Breu
- Inorganic
Chemistry 1, University of Bayreuth, Universitätsstrasse 30, 95440 Bayreuth, Germany
| | - Bernhard Biersack
- Organic
Chemistry 1, University of Bayreuth, Universitätsstrasse 30, 95440 Bayreuth, Germany
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29
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Ambulo CP, Carothers KJ, Hollis AT, Limburg HN, Sun L, Thrasher CJ, McConney ME, Godman NP. Photo-Crosslinkable Inorganic/Organic Sulfur Polymers. Macromol Rapid Commun 2023; 44:e2200798. [PMID: 36639862 DOI: 10.1002/marc.202200798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 12/19/2022] [Indexed: 01/15/2023]
Abstract
Inverse vulcanization techniques are used to fabricate thermodynamically stable, sulfur polymers. Sulfur-based polymers exhibit higher refractive indices and improved transparency in the mid-wave infrared region compared with most organic polymers. Herein, the postsynthetic modification of sulfur polymers created via inverse vulcanization to generate novel, inorganic/organic photoresists is discussed. Amine-containing sulfur resins are postfunctionalized with cross-linkable alkynes. The sulfur-based materials undergo rapid photo-crosslinking to generate patternable films within 10 min under UV irradiation (365 nm). The development of these resins enables sulfur polymers to be utilized in processes where spatial and hierarchical control is necessary. The generation of this class of materials also expands on sulfur-based organic polymer systems with optical applications.
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Affiliation(s)
- Cedric P Ambulo
- Azimuth Corporation, 2970 Presidential Dr., Fairborn, OH, 45324, USA.,Materials and Manufacturing Directorate, Air Force Research Laboratory, 2977 Hobson Way, Wright Patterson AFB, Fairborn, OH, 45433, USA
| | - Kyle J Carothers
- Azimuth Corporation, 2970 Presidential Dr., Fairborn, OH, 45324, USA.,Materials and Manufacturing Directorate, Air Force Research Laboratory, 2977 Hobson Way, Wright Patterson AFB, Fairborn, OH, 45433, USA
| | - Ashford T Hollis
- Department of Chemistry, Air Force Academy, 2304 Cadet Dr., Harmon Hall, CO, 80840, USA
| | - Hannah N Limburg
- Department of Materials Science and Engineering, Texas A&M University, 400 Bizzell St., College Station, College Station, TX, 77843, USA.,Materials and Manufacturing Directorate, Air Force Research Laboratory, 2977 Hobson Way, Wright Patterson AFB, Fairborn, OH, 45433, USA
| | - Lirong Sun
- Azimuth Corporation, 2970 Presidential Dr., Fairborn, OH, 45324, USA.,Materials and Manufacturing Directorate, Air Force Research Laboratory, 2977 Hobson Way, Wright Patterson AFB, Fairborn, OH, 45433, USA
| | - Carl J Thrasher
- Materials and Manufacturing Directorate, Air Force Research Laboratory, 2977 Hobson Way, Wright Patterson AFB, Fairborn, OH, 45433, USA
| | - Michael E McConney
- Materials and Manufacturing Directorate, Air Force Research Laboratory, 2977 Hobson Way, Wright Patterson AFB, Fairborn, OH, 45433, USA
| | - Nicholas P Godman
- Materials and Manufacturing Directorate, Air Force Research Laboratory, 2977 Hobson Way, Wright Patterson AFB, Fairborn, OH, 45433, USA
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30
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Lin J, Fan Y, Hutchinson DJ, Malkoch M. Soft Hydroxyapatite Composites Based on Triazine-Trione Systems as Potential Biomedical Engineering Frameworks. ACS APPLIED MATERIALS & INTERFACES 2023; 15:7329-7339. [PMID: 36695708 PMCID: PMC9923673 DOI: 10.1021/acsami.2c16235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Accepted: 01/09/2023] [Indexed: 06/17/2023]
Abstract
Composites of triazine-trione (TATO) thiol-ene networks and hydroxyapatite (HA) have shown great potential as topological fixation materials for complex bone fractures due to their high flexural modulus, biocompatibility, and insusceptibility to forming soft-tissue adhesions. However, the rigid mechanical properties of these composites make them unsuitable for applications requiring softness. The scope of these materials could therefore be widened by the design of new TATO monomers that would lead to composites with a range of mechanical properties. In this work, four novel TATO-based monomers, decorated with either ester or amide linkages as well as alkene or alkyne end groups, have been proposed and synthesized via fluoride-promoted esterification (FPE) chemistry. The ester-modified monomers were then successfully formulated along with the thiol TATO monomer tris [2-(3-mercaptopropionyloxy)ethyl] isocyanurate (TEMPIC) and HA to give soft composites, following the established photo-initiated thiol-ene coupling (TEC) or thiol-yne coupling (TYC) chemistry methodologies. The most promising composite shows excellent softness, with a flexural modulus of 57 (2) MPa and εf at maximum σf of 11.8 (0.3)%, which are 117 and 10 times softer than the previously developed system containing the commercially available tri-allyl TATO monomer (TATATO). Meanwhile, the surgically convenient viscosity of the composite resins and their excellent cytotoxicity profile allow them to be used in the construction of soft objects in a variety of shapes through drop-casting suitable for biomedical applications.
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31
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Verjans J, Sedlačík T, Jerca VV, Bernhard Y, Van Guyse JFR, Hoogenboom R. Poly( N-allyl acrylamide) as a Reactive Platform toward Functional Hydrogels. ACS Macro Lett 2023; 12:79-85. [PMID: 36595222 DOI: 10.1021/acsmacrolett.2c00650] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The synthesis of poly(N-allyl acrylamide) (PNAllAm) as a platform for the preparation of functional hydrogels is described. The PNAllAm was synthesized via organocatalyzed amidation of poly(methyl acrylate) (PMA) with allylamine and characterized by 1H NMR spectroscopy, size exclusion chromatography (SEC), and turbidimetry, which allowed an estimation of the lower critical solution temperature of ∼26 °C in water. The PNAllAm was then used to make functional hydrogels via photoinitiated thiol-ene chemistry, where dithiothreitol (DTT) was used to cross-link the polymer chains. In addition, mercaptoethanol (ME) was added as a functional thiol to modulate the hydrogel properties. A decrease of the volume-phase transition temperature of the resulting hydrogels was observed with increasing ME content. Altogether this work introduces a straightforward way for the preparation of PNAllAm from PMA and demonstrates its value as a reactive polymer platform for the generation of functional hydrogels.
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Affiliation(s)
- Jente Verjans
- Supramolecular Chemistry Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, B-9000 Ghent, Belgium
| | - Tomáš Sedlačík
- Supramolecular Chemistry Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, B-9000 Ghent, Belgium
| | - Valentin Victor Jerca
- Smart Organic Materials Group, "Costin D. Nenitzescu" Institute of Organic and Supramolecular Chemistry, Romanian Academy, Spl. Independentei 202B, 060023 Bucharest, Romania
| | - Yann Bernhard
- Supramolecular Chemistry Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, B-9000 Ghent, Belgium
| | - Joachim F R Van Guyse
- Supramolecular Chemistry Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, B-9000 Ghent, Belgium
| | - Richard Hoogenboom
- Supramolecular Chemistry Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, B-9000 Ghent, Belgium
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32
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Muñoz J, Palacios-Corella M, Gómez IJ, Zajíčková L, Pumera M. Synthetic Nanoarchitectonics of Functional Organic-Inorganic 2D Germanane Heterostructures via Click Chemistry. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2206382. [PMID: 36113982 DOI: 10.1002/adma.202206382] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 09/01/2022] [Indexed: 06/15/2023]
Abstract
Succeeding graphene, 2D inorganic materials made of reactive van der Waals layers, like 2D germanane (2D-Ge) derivatives, have attracted great attention because their physicochemical characteristics can be entirely tuned by modulating the nature of the surface substituent. Although very interesting from a scientific point of view, almost all the reported works involving 2D-Ge derivatives are focused on computational studies. Herein, a first prototype of organic-inorganic 2D-Ge heterostructure has been synthesized by covalently anchoring thiol-rich carbon dots (CD-SH) onto 2D allyl germanane (2D-aGe) via a simple and green "one-pot" click chemistry approach. Remarkably, the implanted characteristics of the carbon nanomaterial provide new physicochemical features to the resulting 0D/2D heterostructure, making possible its implementation in yet unexplored optoelectronic tasks-e.g., as a fluorescence resonance energy transfer (FRET) sensing system triggered by supramolecular π-π interactions-that are inaccessible for the pristine 2D-aGe counterpart. Consequently, this work builds a foundation toward the robust achievement of functional organic-inorganic 2D-Ge nanoarchitectonics through covalently assembling thiol-rich carbon nanoallotropes on commercially available 2D-aGe.
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Affiliation(s)
- Jose Muñoz
- Future Energy and Innovation Laboratory, Central European Institute of Technology, Brno University of Technology, Purkyňova 123, Brno, 612 00, Czech Republic
| | - Mario Palacios-Corella
- Future Energy and Innovation Laboratory, Central European Institute of Technology, Brno University of Technology, Purkyňova 123, Brno, 612 00, Czech Republic
| | - I Jénnifer Gómez
- Department of Condensed Matter Physics, Faculty of Science, Masaryk University, Kotlářská 2, Brno, 611 37, Czech Republic
- Plasma Technologies, Central European Institute of Technology, Brno University of Technology, Purkyňova 123, Brno, 612 00, Czech Republic
| | - Lenka Zajíčková
- Department of Condensed Matter Physics, Faculty of Science, Masaryk University, Kotlářská 2, Brno, 611 37, Czech Republic
- Plasma Technologies, Central European Institute of Technology, Brno University of Technology, Purkyňova 123, Brno, 612 00, Czech Republic
| | - Martin Pumera
- Future Energy and Innovation Laboratory, Central European Institute of Technology, Brno University of Technology, Purkyňova 123, Brno, 612 00, Czech Republic
- Department of Medical Research, China Medical University Hospital, China Medical University, No. 91 Hsueh-Shih Road, Taichung, 40402, Taiwan
- Faculty of Electrical Engineering and Computer Science, VSB - Technical University of Ostrava, 17. listopadu 2172/15, Ostrava, 70800, Czech Republic
- Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Korea
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33
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Yazdi MK, Sajadi SM, Seidi F, Rabiee N, Fatahi Y, Rabiee M, Dominic C.D. M, Zarrintaj P, Formela K, Saeb MR, Bencherif SA. Clickable Polysaccharides for Biomedical Applications: A Comprehensive Review. Prog Polym Sci 2022; 133:101590. [PMID: 37779922 PMCID: PMC10540641 DOI: 10.1016/j.progpolymsci.2022.101590] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Recent advances in materials science and engineering highlight the importance of designing sophisticated biomaterials with well-defined architectures and tunable properties for emerging biomedical applications. Click chemistry, a powerful method allowing specific and controllable bioorthogonal reactions, has revolutionized our ability to make complex molecular structures with a high level of specificity, selectivity, and yield under mild conditions. These features combined with minimal byproduct formation have enabled the design of a wide range of macromolecular architectures from quick and versatile click reactions. Furthermore, copper-free click chemistry has resulted in a change of paradigm, allowing researchers to perform highly selective chemical reactions in biological environments to further understand the structure and function of cells. In living systems, introducing clickable groups into biomolecules such as polysaccharides (PSA) has been explored as a general approach to conduct medicinal chemistry and potentially help solve healthcare needs. De novo biosynthetic pathways for chemical synthesis have also been exploited and optimized to perform PSA-based bioconjugation inside living cells without interfering with their native processes or functions. This strategy obviates the need for laborious and costly chemical reactions which normally require extensive and time-consuming purification steps. Using these approaches, various PSA-based macromolecules have been manufactured as building blocks for the design of novel biomaterials. Clickable PSA provides a powerful and versatile toolbox for biomaterials scientists and will increasingly play a crucial role in the biomedical field. Specifically, bioclick reactions with PSA have been leveraged for the design of advanced drug delivery systems and minimally invasive injectable hydrogels. In this review article, we have outlined the key aspects and breadth of PSA-derived bioclick reactions as a powerful and versatile toolbox to design advanced polymeric biomaterials for biomedical applications such as molecular imaging, drug delivery, and tissue engineering. Additionally, we have also discussed the past achievements, present developments, and recent trends of clickable PSA-based biomaterials such as 3D printing, as well as their challenges, clinical translatability, and future perspectives.
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Affiliation(s)
- Mohsen Khodadadi Yazdi
- Jiangsu Co–Innovation Center for Efficient Processing and Utilization of Forest Resources and International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, 210037 Nanjing, China
| | - S. Mohammad Sajadi
- Department of Nutrition, Cihan University-Erbil, Kurdistan Region, 625, Erbil, Iraq
- Department of Phytochemistry, SRC, Soran University, 624, KRG, Iraq
| | - Farzad Seidi
- Jiangsu Co–Innovation Center for Efficient Processing and Utilization of Forest Resources and International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, 210037 Nanjing, China
| | - Navid Rabiee
- School of Engineering, Macquarie University, Sydney, New South Wales, 2109, Australia
| | - Yousef Fatahi
- Department of Pharmaceutical Nanotechnology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
- Nanotechnology Research Centre, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Rabiee
- Biomaterial group, Department of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran
| | - Midhun Dominic C.D.
- Department of Chemistry, Sacred Heart College (Autonomous), Kochi, Kerala Pin-682013, India
| | - Payam Zarrintaj
- School of Chemical Engineering, Oklahoma State University, 420 Engineering North, Stillwater, OK 74078, United States
| | - Krzysztof Formela
- Department of Polymer Technology, Faculty of Chemistry, Gdańsk University of Technology, Narutowicza 11/12, 80-233 Gdańsk, Poland
| | - Mohammad Reza Saeb
- Department of Polymer Technology, Faculty of Chemistry, Gdańsk University of Technology, Narutowicza 11/12, 80-233 Gdańsk, Poland
| | - Sidi A. Bencherif
- Department of Chemical Engineering, Northeastern University, Boston, MA, United States
- Department of Bioengineering, Northeastern University, Boston, MA, United States
- Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, United States
- Sorbonne University, UTC CNRS UMR 7338, Biomechanics and Bioengineering (BMBI), University of Technology of Compiègne, Compiègne, France
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34
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Vemuri GN, Hughes JR, Iovine PM. Synthesis and characterization of terpene-derived cationic bolaamphiphiles. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.133008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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35
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Gerdt P, Studer A. Alternating Terpolymers through Cyclopolymerization and Subsequent Orthogonal Functionalization. Angew Chem Int Ed Engl 2022; 61:e202206964. [PMID: 35622377 PMCID: PMC9796892 DOI: 10.1002/anie.202206964] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Indexed: 01/07/2023]
Abstract
A method for the synthesis of functionalized alternating copolymers by reversible deactivation radical polymerization was developed. Copolymerization by reversible addition-fragmentation chain transfer of hexenyl vinyl ether with a novel fluorinated divinyl monomer yields alternating cyclopolymers that can be chemoselectively modified by three distinct orthogonal functionalization reactions. Along the thiol-ene click reaction and amidation, a third functionalization was achieved via NHC-catalyzed transesterification or acylation resulting in a small library of ABC-type alternating terpolymers.
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Affiliation(s)
- Philipp Gerdt
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstrasse 36, 48149, Münster, Germany
| | - Armido Studer
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstrasse 36, 48149, Münster, Germany
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36
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Zeng X, Chen Q, Zhao C, Xie S, Xie H, Huang C. Eugenol-derived organic liquids as an in situ CO2 capturing and conversion system for Eugenol-based polycarbonate synthesis. Chem Asian J 2022; 17:e202200503. [PMID: 35971849 DOI: 10.1002/asia.202200503] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Revised: 08/07/2022] [Indexed: 11/07/2022]
Abstract
The significant development of catalytic biomass conversion has provided a large library of chemicals ready for subsequent upgrading to polymerisable monomers for the design and preparation of sustainable polymers. In this study, hydroxyethylation of eugenol by using green ethylene carbonate as alkylation reagent and cheap tetrabutylammonium iodide ionic liquids as green solvents and catalysts produced 2-(4-allyl-2-methoxyphenoxy)ethan-1-ol with a 85% yield, which could be used to construct an in situ CO 2 capture and conversion system by taking the reversible chemistry of alcoholic compounds with CO 2 in the presence of superbases, on which α,ω-diene functionalized carbonate monomers were successfully prepared and were applied in thiol-ene click and acyclic diene metathesis polymerisation (ADMET), producing a series of poly(thioether carbonate)s and unsaturated aromatic aliphatic polycarbonates with moderate molecular weights and satisfactory thermal properties. The structures of the formed CO 2 reversible ILs, the polymerisable monomers and the corresponding polymers were fully characterized by various technologies.
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Affiliation(s)
- Xiankui Zeng
- Guizhou University, Department of Polymeric Materials & Engineering, College of Materials & Metallurgy, CHINA
| | - Qin Chen
- Guizhou University, Department of Polymeric Materials & Engineering, College of Materials & Metallurgy, CHINA
| | - Changbo Zhao
- Guizhou University, Department of Polymeric Materials & Engineering, College of Materials & Metallurgy, CHINA
| | - Sibo Xie
- Guizhou University, Department of Polymeric Materials & Engineering, College of Materials & Metallurgy, CHINA
| | - Haibo Xie
- Guizhou University, Department of Polymeric Materials & Engineering, West Campus, Guizhou University, Huaxi District, 550025, Guiyang, CHINA
| | - Caijuan Huang
- Guizhou University, Department of Polymeric Materials & Engineering, College of Materials & Metallurgy, CHINA
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37
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Kumar R, Dey R, Kalita T, Pariyal S, Sankar Goswami B, Haldar J, Shunmugam R. Engineering a unique Multi-tasking polymer that specifically prevents rhodamine B and fluoride ion toxicity with Anti-bacterial responses against MRSA. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111401] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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38
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Antibacterial and Angiogenic Poly(ionic liquid) Hydrogels. Gels 2022; 8:gels8080476. [PMID: 36005077 PMCID: PMC9407512 DOI: 10.3390/gels8080476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 07/18/2022] [Accepted: 07/19/2022] [Indexed: 11/17/2022] Open
Abstract
Wounds, particularly under low-hydration conditions, require more time to repair successfully. Therefore, there is an urgent need to develop wound dressings that can accelerate wound healing. Hydrogels, which can maintain a moist environment around the wound and allow gas to pass through the material, act as antibacterial hydrogels as dressings and have great application value in the treatment of wounds. In addition, wound dressings (hydrogels) containing antibacterial capacity have lasting antibacterial effects and reduce damage to cells. In this work, we firstly synthesized two antibacterial agents: imidazolium poly(ionic liquids) containing sulfhydryl (Imidazole-SH) and ε-Poly(lysine) containing SH (EPL-SH). Then, lysine as a cross-linking agent, by “thiol-ene” click reaction, was mixed with Deferoxamine (DFO) to prepare the antibacterial hydrogels. The in vitro assays showed that the hydrogels could effectively kill Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus). In addition, it also could reduce the inflammatory response produced by Lipopolysaccharide (LPS). More importantly, according to the transwell and angiogenesis assays, DFO-incorporated hydrogels promoted the migration and vascular repair of human umbilical vein endothelial cells (HUVECs). All the results revealed that the hydrogels provided new strategies for wound dressings.
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39
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Zhang J, Aydogan C, Patias G, Smith T, Al-Shok L, Liu H, Eissa AM, Haddleton DM. Polymerization of Myrcene in Both Conventional and Renewable Solvents: Postpolymerization Modification via Regioselective Photoinduced Thiol-Ene Chemistry for Use as Carbon Renewable Dispersants. ACS SUSTAINABLE CHEMISTRY & ENGINEERING 2022; 10:9654-9664. [PMID: 35935282 PMCID: PMC9344384 DOI: 10.1021/acssuschemeng.2c03755] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 06/28/2022] [Indexed: 06/15/2023]
Abstract
Polymeric dispersants are useful materials used in many different industries and often derived from oil-based chemicals, for example, in automotive fluids so as to prevent particulates from precipitation and causing potential damage. These are very often polyisobutene derivatives, and there is a growing need to replace these using chemicals using renewable resources such as the use of naturally occurring myrcene. Polymyrcene (PMy), with an ordered microstructure, has been successfully synthesized via both anionic and radical polymerization in different solvents and subsequently subjected to functionalization via photoinduced thiol-ene click reactions with a number of thiols, methyl thioglycolate, 3-mercaptopropionic acid, 3-mercapto-1-hexanol, 2-mercaptoethanol, and 1-thioglycerol, using 2,2-dimethoxy-2-phenylacetophenone as a photoinitiator under UV irradiation (λ = 365 nm) at ambient temperature. The polarity of the solvent has an important impact on the microstructure of the produced polymyrcene and, in particular, 1,2-unit (∼4%), 3,4-unit (∼41%), and 1,4-unit (∼51%) PMy were obtained via anionic polymerization in a polar solvent (THF) at ambient temperature, while 3,4-unit (∼6%) and 1,4-unit (∼94%, including cis and trans) PMy were obtained with cyclohexane as the solvent. Subsequently, photochemical thiol-ene reactions were carried out on the resulting PMy with different isomers exhibiting different reactivities of the double bonds. This strategy allows for the introduction of functional/polar groups (-COOH, -OH) into hydrophobic PMy in a controlled process. Hydrogenation of PMy and derivatized PMy was carried out to investigate any effects on the stabilities of the products which are desirable for many applications.
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Affiliation(s)
- Jirui Zhang
- Department
of Chemistry, University of Warwick, Gibbet Hill, Coventry CV4 7AL, United
Kingdom
| | - Cansu Aydogan
- Department
of Chemistry, University of Warwick, Gibbet Hill, Coventry CV4 7AL, United
Kingdom
| | - Georgios Patias
- Department
of Chemistry, University of Warwick, Gibbet Hill, Coventry CV4 7AL, United
Kingdom
| | - Timothy Smith
- Lubrizol,
Ltd., Nether Lane, Hazelwood, Derbyshire DE56 4AN, United Kingdom
| | - Lucas Al-Shok
- Department
of Chemistry, University of Warwick, Gibbet Hill, Coventry CV4 7AL, United
Kingdom
| | - Huizhe Liu
- Department
of Chemistry, University of Warwick, Gibbet Hill, Coventry CV4 7AL, United
Kingdom
| | - Ahmed M. Eissa
- Department
of Chemistry, University of Warwick, Gibbet Hill, Coventry CV4 7AL, United
Kingdom
| | - David M. Haddleton
- Department
of Chemistry, University of Warwick, Gibbet Hill, Coventry CV4 7AL, United
Kingdom
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40
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Dugas LD, Walker WD, Shankar R, Hoppmeyer KS, Thornell TL, Morgan SE, Storey RF, Patton DL, Simon YC. Diketoenamine-based Vitrimers via Thiol-ene photopolymerization. Macromol Rapid Commun 2022; 43:e2200249. [PMID: 35856189 DOI: 10.1002/marc.202200249] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 06/21/2022] [Indexed: 11/06/2022]
Abstract
Likened to both thermosets and thermoplastics, vitrimers are a unique class of materials that combine remarkable stability, healability, and reprocessability. Herein, we describe a photopolymerized thiol-ene-based vitrimer that undergoes dynamic covalent exchanges through uncatalyzed transamination of enamines derived from cyclic β-triketones, whereby the low energy barrier for exchange facilitates reprocessing and enables rapid depolymerization. Accordingly, we devised an alkene-functionalized β-triketone, 5,5-dimethyl-2-(pent-4-enoyl)cyclohexane-1,3-dione, which was reacted with 1,6-diaminohexane in a stoichiometrically imbalanced fashion (∼1:0.85 primary amine:triketone). The resulting networks exhibited subambient glass transition temperature (Tg = 5.66°C) by differential scanning calorimetry (DSC). Using a Maxwell stress-relaxation fit, the topology freezing temperature (Tv ) was calculated to be -32°C. Small-amplitude oscillatory shear (SAOS) rheological analysis enabled us to identify a practical critical temperature above which the vitrimer could be successfully reprocessed (Tv,eff ). Via the introduction of excess primary amines, we could readily degrade the networks into monomeric precursors, which were in turn reacted with diamines to regenerate reprocessable networks. Photopolymerization provides unique spatiotemporal control over the network topology, thereby opening the path for further investigation of vitrimer properties. As such, this work expands the toolbox of chemical upcycling of networks and enables their wider implementation. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Logan D Dugas
- School of Polymer Science and Engineering, The University of Southern Mississippi, 118 College Drive #5050, Hattiesburg, MS, 39406, USA
| | - William D Walker
- School of Polymer Science and Engineering, The University of Southern Mississippi, 118 College Drive #5050, Hattiesburg, MS, 39406, USA
| | - Rahul Shankar
- School of Polymer Science and Engineering, The University of Southern Mississippi, 118 College Drive #5050, Hattiesburg, MS, 39406, USA
| | - Keely S Hoppmeyer
- School of Polymer Science and Engineering, The University of Southern Mississippi, 118 College Drive #5050, Hattiesburg, MS, 39406, USA
| | - Travis L Thornell
- US Army, Engineering Research & Development Center, Geotechnical and Structures Laboratory, Vicksburg, MS, 39180, USA
| | - Sarah E Morgan
- School of Polymer Science and Engineering, The University of Southern Mississippi, 118 College Drive #5050, Hattiesburg, MS, 39406, USA
| | - Robson F Storey
- School of Polymer Science and Engineering, The University of Southern Mississippi, 118 College Drive #5050, Hattiesburg, MS, 39406, USA
| | - Derek L Patton
- School of Polymer Science and Engineering, The University of Southern Mississippi, 118 College Drive #5050, Hattiesburg, MS, 39406, USA
| | - Yoan C Simon
- School of Polymer Science and Engineering, The University of Southern Mississippi, 118 College Drive #5050, Hattiesburg, MS, 39406, USA
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41
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Pornpitchanarong C, Rojanarata T, Opanasopit P, Ngawhirunpat T, Bradley M, Patrojanasophon P. Maleimide-functionalized carboxymethyl cellulose: A novel mucoadhesive polymer for transmucosal drug delivery. Carbohydr Polym 2022; 288:119368. [DOI: 10.1016/j.carbpol.2022.119368] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 02/24/2022] [Accepted: 03/15/2022] [Indexed: 12/23/2022]
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42
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Strasser P, Plavcan O, Ajvazi E, Henke H, Brüggemann O, Teasdale I. Hetero and homo α,ω-chain-end functionalized polyphosphazenes. JOURNAL OF POLYMER SCIENCE 2022; 60:2000-2007. [PMID: 35915665 PMCID: PMC9325445 DOI: 10.1002/pol.20220066] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 03/18/2022] [Accepted: 03/19/2022] [Indexed: 12/03/2022]
Abstract
The control of chain-ends is fundamental in modern macromolecular chemistry for directed one-to-one bioconjugation and the synthesis of advanced architectures such as block copolymers or bottlebrush polymers and the preparation of advanced soft materials. Polyphosphazenes are of growing importance as elastomers, biodegradable materials and in biomedical drug delivery due to their synthetic versatility. While controlled polymerization methods have been known for some time, controlling both chain-ends with high fidelity has proven difficult. We demonstrate a robust synthetic route to hetero and homo α,ω-chain-end functionalized polyphosphazenes via end-capping with easily accessible, functionalized triphenylphosphine-based phosphoranimines. A versatile thiol-ene "click"-reaction approach then allows for subsequent conversion of the end-capped polymers with various functional groups. Finally, we demonstrate the utility of this system to prepare gels based on homo α,ω-chain-end functionalized polyphosphazenes. This development will enhance their progress in various applications, particularly in soft materials and as degradable polymers.
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Affiliation(s)
- Paul Strasser
- Institute of Polymer ChemistryJohannes Kepler University LinzLinzAustria
| | - Oliver Plavcan
- Institute of Polymer ChemistryJohannes Kepler University LinzLinzAustria
| | - Edip Ajvazi
- Institute of Polymer ChemistryJohannes Kepler University LinzLinzAustria
| | - Helena Henke
- Institute of Polymer ChemistryJohannes Kepler University LinzLinzAustria
- Centre for Additive ManufacturingUniversity of Nottingham, Jubilee Campus, Wollaton RoadNottingham, NG8 1BBUK
| | - Oliver Brüggemann
- Institute of Polymer ChemistryJohannes Kepler University LinzLinzAustria
| | - Ian Teasdale
- Institute of Polymer ChemistryJohannes Kepler University LinzLinzAustria
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43
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Szymkowiak JK, Walters CM, Hamad WY, MacLachlan MJ. Tuning the Properties of Chiral Nematic Mesoporous (Organo)silica Through Thiol‐Ene Click Chemistry. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202200218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Joanna K. Szymkowiak
- Department of Chemistry University of British Columbia 2036 Main Mall Vancouver, British Columbia V6T 1Z1 Canada
| | - Christopher M. Walters
- Department of Chemistry University of British Columbia 2036 Main Mall Vancouver, British Columbia V6T 1Z1 Canada
| | - Wadood Y. Hamad
- Transformation and Interfaces Group Bioproducts Innovation Centre of Excellence FPInnovations 2665 East Mall Vancouver, British Columbia V6T 1Z4 Canada
| | - Mark J. MacLachlan
- Department of Chemistry University of British Columbia 2036 Main Mall Vancouver, British Columbia V6T 1Z1 Canada
- Stewart Blusson Quantum Matter Institute University of British Columbia 2355 East Mall Vancouver, British Columbia V6T 1Z4 Canada
- WPI Nano Life Science Institute Kanazawa University Kanazawa 920–1192 Japan
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44
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Kim S, Rahman MA, Arifuzzaman M, Gilmer DB, Li B, Wilt JK, Lara-Curzio E, Saito T. Closed-loop additive manufacturing of upcycled commodity plastic through dynamic cross-linking. SCIENCE ADVANCES 2022; 8:eabn6006. [PMID: 35658043 PMCID: PMC9166624 DOI: 10.1126/sciadv.abn6006] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 04/18/2022] [Indexed: 05/25/2023]
Abstract
A sustainable closed-loop manufacturing would become reality if commodity plastics can be upcycled into higher-performance materials with facile processability. Such circularity will be realized when the upcycled plastics can be (re)processed into custom-designed structures through energy/resource-efficient additive manufacturing methods, especially by approachable and scalable fused filament fabrication (FFF). Here, we introduce a circular model epitomized by upcycling a prominent thermoplastic, acrylonitrile butadiene styrene (ABS) into a recyclable, robust adaptive dynamic covalent network (ABS-vitrimer) (re)printable via FFF. The full FFF processing of ABS-vitrimer overcomes the major challenge of (re)printing cross-linked materials and produces stronger, tougher, solvent-resistant three-dimensional objects directly reprintable and separable from unsorted plastic waste. This study thus offers an imminently adoptable approach for advanced manufacturing toward the circular plastics economy.
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Affiliation(s)
- Sungjin Kim
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - Md Anisur Rahman
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - Md Arifuzzaman
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - Dustin B. Gilmer
- Bredesen Center for Interdisciplinary Research and Graduate Education, University of Tennessee, Knoxville, TN 37996, USA
| | - Bingrui Li
- Bredesen Center for Interdisciplinary Research and Graduate Education, University of Tennessee, Knoxville, TN 37996, USA
| | - Jackson K. Wilt
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - Edgar Lara-Curzio
- Materials Sciences and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - Tomonori Saito
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
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45
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Pakuła D, Przekop RE, Brząkalski D, Frydrych M, Sztorch B, Marciniec B. Sulfur-Containing Silsesquioxane Derivatives Obtained by the Thiol-ene Reaction: Synthesis and Thermal Degradation. Chempluschem 2022; 87:e202200099. [PMID: 35670458 DOI: 10.1002/cplu.202200099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 05/06/2022] [Indexed: 02/03/2023]
Abstract
This article presents the synthesis of new derivatives of octa(3-thiopropyl)silsesquioxane (SSQ-8SH) via thiol-ene reaction with simple olefins bearing alkyl groups as well as methoxysilyl, substituted aryl or fluoroalkyl groups. All products were characterized by 1 H NMR, 13 C NMR, 29 Si NMR, FTIR, GPC, MALDI-TOF-MS, as well as thermal analysis (TGA) to confirm their structures, purity and thermal stability, and finally give some insight into their thermal degradation pathway. In some of the structures obtained, the T5% values take place at high temperatures and are close to 230 °C. The thiol-ene reaction allowed to obtain 7 new compounds with high yield (>92 %), no by-products and in a relatively short time (24 h). All products are characterized by high conversion >99 %. New derivatives can find potential use as modifiers of plastics to improve their certain properties for example hydrophobicity or thermo-oxidative stability.
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Affiliation(s)
- Daria Pakuła
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 8, 61-614, Poznań, Poland
| | - Robert E Przekop
- Centre for Advanced Technologies, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 10, 61-614, Poznań, Poland
| | - Dariusz Brząkalski
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 8, 61-614, Poznań, Poland
| | - Miłosz Frydrych
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 8, 61-614, Poznań, Poland
| | - Bogna Sztorch
- Centre for Advanced Technologies, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 10, 61-614, Poznań, Poland
| | - Bogdan Marciniec
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 8, 61-614, Poznań, Poland.,Centre for Advanced Technologies, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 10, 61-614, Poznań, Poland
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46
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Kang J, Lim YW, Lee I, Kim S, Kim KY, Lee W, Bae BS. Photopatternable Poly(dimethylsiloxane) (PDMS) for an Intrinsically Stretchable Organic Electrochemical Transistor. ACS APPLIED MATERIALS & INTERFACES 2022; 14:24840-24849. [PMID: 35584034 DOI: 10.1021/acsami.2c06343] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Patterning elastomers is an essential process for the application of elastomers to stretchable bioelectric devices. In general, replication of a mold and laser ablation are used for patterning elastomers. However, these methods are inefficient and time consuming due to complex patterning procedures and a heat-induced curing mechanism. In this work, we developed a photopatternable elastomer called thiol-ene cross-linked poly(dimethylsiloxane) (TC-PDMS). TC-PDMS showed high-resolution patternability (∼100 μm) through a direct patterning process. It also had high stretchability (∼140%) and low Young's modulus (∼2.9 MPa) similar to conventional PDMS. To demonstrate its practicability in stretchable bioelectric devices, TC-PDMS was applied to a passivation layer of an intrinsically stretchable organic electrochemical transistor (OECT), which showed a low leakage current (∼20 μA) and a high transconductance (0.432 mS) at high strain (60%). The stretchable OECT was able to record electrocardiographic (ECG) signals from human skin, and the measured ECG signals exhibited a high signal-to-noise ratio of 12.2 dB.
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Affiliation(s)
- Joohyuk Kang
- Wearable Platform Center, Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Young-Woo Lim
- Wearable Platform Center, Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Injun Lee
- Wearable Platform Center, Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Seungwan Kim
- Wearable Platform Center, Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Kyung Yeun Kim
- Center for Biomaterials, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Seoul 136-791, Republic of Korea
| | - Wonryung Lee
- Center for Biomaterials, Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Seoul 136-791, Republic of Korea
| | - Byeong-Soo Bae
- Wearable Platform Center, Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
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47
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Gerdt P, Studer A. Alternating Terpolymers through Cyclopolymerization and Subsequent Orthogonal Functionalization. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202206964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Philipp Gerdt
- Westfälische Wilhelms-Universität Münster Fachbereich 12 Chemie und Pharmazie: Westfalische Wilhelms-Universitat Munster Fachbereich 12 Chemie und Pharmazie Chemistry and pharmacy GERMANY
| | - Armido Studer
- Westfalische Wilhelms-Universitat Munster Organisch-Chemisches Institut Corrensstrasse 40 48149 Münster GERMANY
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48
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Ji H, Wang B, Pan L, Liu X, Li Y. A green synthetic toolbox from organocatalytic alternating copolymerization of renewable epoxides and dihydrocoumarin. JOURNAL OF POLYMER SCIENCE 2022. [DOI: 10.1002/pol.20220082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- He‐Yuan Ji
- Tianjin Key Lab of Composite & Functional Materials, School of Materials Science and Engineering Tianjin University Tianjin China
| | - Bin Wang
- Tianjin Key Lab of Composite & Functional Materials, School of Materials Science and Engineering Tianjin University Tianjin China
| | - Li Pan
- Tianjin Key Lab of Composite & Functional Materials, School of Materials Science and Engineering Tianjin University Tianjin China
| | - Xiao‐Hui Liu
- School of Materials Science and Engineering Tiangong University Tianjin China
| | - Yue‐Sheng Li
- Tianjin Key Lab of Composite & Functional Materials, School of Materials Science and Engineering Tianjin University Tianjin China
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49
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Zhang X, Ding S, Magoline J, Ivankin A, Mirkin CA. Photopolymerized Features via Beam Pen Lithography as a Novel Tool for the Generation of Large Area Protein Micropatterns. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2105998. [PMID: 35119205 DOI: 10.1002/smll.202105998] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 01/10/2022] [Indexed: 06/14/2023]
Abstract
A cantilever-free scanning probe lithography (CF-SPL)-based method for the rapid polymerization of nanoscale features on a surface via crosslinking and thiol-acrylate photoreactions is described, wherein the nanoscale position, height, and diameter of each feature can be finely and independently tuned. With precise spatiotemporal control over the illumination pattern, beam pen lithography (BPL) allows for the photo-crosslinking of polymers into ultrahigh resolution features over centimeter-scale areas using massively parallel >160 000 pen arrays of individually addressable pens that guide and focus light onto the surface with sub-diffraction resolution. The photoinduced crosslinking reaction of the ink material, which is composed of photoinitiator, diphenyl(2,4,6-trimethylbenzoyl) phosphine oxide, poly(ethylene glycol) diacrylate, and thiol-modified functional binding molecules (i.e., thiol-PEG-biotin or 16-mercaptohexanoic acid), proceeds to ≈80% conversion with UV exposure (72 mW cm-2 ) for short time periods (0.5 s). Such polymer patterns are further reacted with proteins (streptavidin and fibronectin) to yield protein arrays with feature arrangements at high resolution and densities controlled by local UV exposure. This platform, which combines polymer photochemistry and massive arrays of scanning probes, constitutes a new approach to making biomolecular microarrays in a high-throughput and high-yielding manner, opening new routes for biochip synthesis, bioscreening, and cell biology research.
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Affiliation(s)
- Xinpeng Zhang
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University, Evanston, IL, 60208, USA
| | - Shaowei Ding
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University, Evanston, IL, 60208, USA
- TERA-print, LLC, 8140 McCormick Blvd, Suite 132, Skokie, IL, 60076, USA
| | - Jared Magoline
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University, Evanston, IL, 60208, USA
- TERA-print, LLC, 8140 McCormick Blvd, Suite 132, Skokie, IL, 60076, USA
| | - Andrey Ivankin
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University, Evanston, IL, 60208, USA
- TERA-print, LLC, 8140 McCormick Blvd, Suite 132, Skokie, IL, 60076, USA
| | - Chad A Mirkin
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University, Evanston, IL, 60208, USA
- TERA-print, LLC, 8140 McCormick Blvd, Suite 132, Skokie, IL, 60076, USA
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Cavaca LAS, Gomes RFA, Afonso CAM. Preparation of Thioaminals in Water. Molecules 2022; 27:1673. [PMID: 35268774 PMCID: PMC8911761 DOI: 10.3390/molecules27051673] [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: 01/05/2022] [Revised: 02/18/2022] [Accepted: 03/01/2022] [Indexed: 11/17/2022] Open
Abstract
The presence of sulfur-carbon bonds is transversal to several areas of chemistry, e.g., drug discovery, materials, and chemical biology. However, a lack of efficient and sustainable procedures for the preparation of thioaminals, the N,S-analogues of O,O-acetals, contributes to this functional group often being overlooked by the scientific community. In this work is described the formation of thioaminals in water promoted by copper(II) triflate.
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Affiliation(s)
| | - Rafael F. A. Gomes
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, University of Lisbon, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal;
| | - Carlos A. M. Afonso
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, University of Lisbon, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal;
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