151
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Fabrication of Robust Water-Repellent Technology on Cotton Fabric via Reaction of Thiol-ene Click Chemistry. COATINGS 2020. [DOI: 10.3390/coatings10060508] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
A robust superhydrophobic fabric coating was fabricated on cotton fabric under UV light, which was achieved by convenient surface modification with mercaptopropyltriethoxysilane, tetramethyltetravinylcyclotetrasiloxane, and octadecyl mercaptan. The modification of cotton fabric with 3-mercaptopropyltriethoxysilane introduces reactive mercapto groups, after which 2,4,6,8-tetramethyltetravinylcyclotetrasiloxane reacts with mercapto groups, and octadecyl mercaptan provides microscale roughness. The nonpolar carbon chains of thiol cause the cotton to have a low surface energy. As reported, the combination of microscale roughness with low surface energy has a superhydrophobic effect on cotton, which leads to a high contact angle of 161.8° and sliding angle of 8°. Infrared spectroscopy, XPS, and SEM tests were used to characterize the chemical structure and morphological changes of the surface of cotton fabric before and after click reaction. The fabric after click reaction exhibited an oil–water mixture separation ability owing to its superhydrophobicity. Thus, the finished fabric could be used in the oil–water separation field. Importantly, the superhydrophobic textile displays resistance to laundering, mechanical abrasion, strong acidic and alkaline environments, and UV irradiation. We hope that this study can broaden the real-life applications of cotton fabric.
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152
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Synthesis of optothermal responsive polymers by thiol-ene click reaction and their aggregation behavior. JOURNAL OF POLYMER RESEARCH 2020. [DOI: 10.1007/s10965-020-02162-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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153
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Kim J, Kang B, Hong SH. Direct Allylic C(sp3)–H Thiolation with Disulfides via Visible Light Photoredox Catalysis. ACS Catal 2020. [DOI: 10.1021/acscatal.0c01232] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Jungwon Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
- Department of Chemistry, College of Natural Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Byungjoon Kang
- Department of Chemistry, College of Natural Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Soon Hyeok Hong
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
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154
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Uchiyama M, Osumi M, Satoh K, Kamigaito M. Thiol‐Ene Cationic and Radical Reactions: Cyclization, Step‐Growth, and Concurrent Polymerizations for Thioacetal and Thioether Units. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201915132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Mineto Uchiyama
- Department of Molecular and Macromolecular ChemistryGraduate School of EngineeringNagoya University, Furo-cho, Chikusa-ku Nagoya 464-8603 Japan
| | - Masahiro Osumi
- Department of Molecular and Macromolecular ChemistryGraduate School of EngineeringNagoya University, Furo-cho, Chikusa-ku Nagoya 464-8603 Japan
| | - Kotaro Satoh
- Department of Molecular and Macromolecular ChemistryGraduate School of EngineeringNagoya University, Furo-cho, Chikusa-ku Nagoya 464-8603 Japan
- Department of Chemical Science and EngineeringSchool of Materials and Chemical TechnologyTokyo Institute of Technology 2-12-1-H120 Ookayama, Meguro-ku Tokyo 152-8550 Japan
| | - Masami Kamigaito
- Department of Molecular and Macromolecular ChemistryGraduate School of EngineeringNagoya University, Furo-cho, Chikusa-ku Nagoya 464-8603 Japan
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155
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Uchiyama M, Osumi M, Satoh K, Kamigaito M. Thiol-Ene Cationic and Radical Reactions: Cyclization, Step-Growth, and Concurrent Polymerizations for Thioacetal and Thioether Units. Angew Chem Int Ed Engl 2020; 59:6832-6838. [PMID: 32040266 DOI: 10.1002/anie.201915132] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 02/10/2020] [Indexed: 12/12/2022]
Abstract
Thiol-ene cationic and radical reactions were conducted for 1:1 addition between a thiol and vinyl ether, and also for cyclization and step-growth polymerization between a dithiol and divinyl ether. p-Toluenesulfonic acid (PTSA) induced a cationic thiol-ene reaction to generate a thioacetal in high yield, whereas 2,2'-azobisisobutyronitrile resulted in a radical thiol-ene reaction to give a thioether, also in high yield. The cationic and radical addition reactions between a dithiol and divinyl ether with oxyethylene units yielded amorphous poly(thioacetal)s and crystalline poly(thioether)s, respectively. Under high-dilution conditions, the cationic and radical reactions resulted in 16- and 18-membered cyclic thioacetal and thioether products, respectively. Furthermore, concurrent cationic and radical step-growth polymerizations were realized using PTSA under UV irradiation to produce polymers having both thioacetal and thioether linkages in the main chain.
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Affiliation(s)
- Mineto Uchiyama
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8603, Japan
| | - Masahiro Osumi
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8603, Japan
| | - Kotaro Satoh
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8603, Japan
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1-H120 Ookayama, Meguro-ku, Tokyo, 152-8550, Japan
| | - Masami Kamigaito
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8603, Japan
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156
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Zhang Z, Hilche T, Slak D, Rietdijk NR, Oloyede UN, Flowers RA, Gansäuer A. Titanocenes as Photoredox Catalysts Using Green‐Light Irradiation. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202001508] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Zhenhua Zhang
- Kekulé-Institut für Organische Chemie und Biochemie Universität Bonn Gerhard Domagk-Straße 1 53121 Bonn Germany
| | - Tobias Hilche
- Kekulé-Institut für Organische Chemie und Biochemie Universität Bonn Gerhard Domagk-Straße 1 53121 Bonn Germany
| | - Daniel Slak
- Kekulé-Institut für Organische Chemie und Biochemie Universität Bonn Gerhard Domagk-Straße 1 53121 Bonn Germany
| | - Niels R. Rietdijk
- Kekulé-Institut für Organische Chemie und Biochemie Universität Bonn Gerhard Domagk-Straße 1 53121 Bonn Germany
| | | | | | - Andreas Gansäuer
- Kekulé-Institut für Organische Chemie und Biochemie Universität Bonn Gerhard Domagk-Straße 1 53121 Bonn Germany
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157
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Seidi F, Zhao W, Xiao H, Jin Y, Zhao C. Layer‐by‐Layer Assembly for Surface Tethering of Thin‐Hydrogel Films: Design Strategies and Applications. CHEM REC 2020; 20:857-881. [DOI: 10.1002/tcr.202000007] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Revised: 03/20/2020] [Accepted: 03/23/2020] [Indexed: 01/12/2023]
Affiliation(s)
- Farzad Seidi
- Provincial Key Lab of Pulp & Paper Sci and Tech, and Joint International Research Lab of Lignocellulosic Functional MaterialsNanjing Forestry University Nanjing 210037 China
| | - Weifeng Zhao
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials EngineeringSichuan University Chengdu 610065 China
| | - Huining Xiao
- Department of Chemical EngineeringUniversity of New Brunswick Fredericton NB E3B 5 A3 Canada
| | - Yongcan Jin
- Provincial Key Lab of Pulp & Paper Sci and Tech, and Joint International Research Lab of Lignocellulosic Functional MaterialsNanjing Forestry University Nanjing 210037 China
| | - Changsheng Zhao
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials EngineeringSichuan University Chengdu 610065 China
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158
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Poly(N-isopropylacrylamide) based thin microgel films for use in cell culture applications. Sci Rep 2020; 10:6126. [PMID: 32273560 PMCID: PMC7145875 DOI: 10.1038/s41598-020-63228-9] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Accepted: 03/20/2020] [Indexed: 12/28/2022] Open
Abstract
Poly(N-isopropylacrylamide) (PNIPAm) is widely used to fabricate cell sheet surfaces for cell culturing, however copolymer and interpenetrated polymer networks based on PNIPAm have been rarely explored in the context of tissue engineering. Many complex and expensive techniques have been employed to produce PNIPAm-based films for cell culturing. Among them, spin coating has demonstrated to be a rapid fabrication process of thin layers with high reproducibility and uniformity. In this study, we introduce an innovative approach to produce anchored smart thin films both thermo- and electro-responsive, with the aim to integrate them in electronic devices and better control or mimic different environments for cells in vitro. Thin films were obtained by spin coating of colloidal solutions made by PNIPAm and PAAc nanogels. Anchoring the films to the substrates was obtained through heat treatment in the presence of dithiol molecules. From analyses carried out with AFM and XPS, the final samples exhibited a flat morphology and high stability to water washing. Viability tests with cells were finally carried out to demonstrate that this approach may represent a promising route to integrate those hydrogels films in electronic platforms for cell culture applications.
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159
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Phan QT, Patil MP, Tu TT, Le CM, Kim GD, Lim KT. Polyampholyte-grafted single walled carbon nanotubes prepared via a green process for anticancer drug delivery application. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122340] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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160
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Munar I, Fındık V, Degirmenci I, Aviyente V. Solvent Effects on Thiol–Ene Kinetics and Reactivity of Carbon and Sulfur Radicals. J Phys Chem A 2020; 124:2580-2590. [DOI: 10.1021/acs.jpca.9b10165] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ipek Munar
- Department of Chemistry, Faculty of Arts and Sciences, Bogazici University, Bebek, 34342, Istanbul, Turkey
| | - Volkan Fındık
- Department of Chemistry, Faculty of Arts and Sciences, Marmara University, 34722 Istanbul, Turkey
| | - Isa Degirmenci
- Chemical Engineering Department, Ondokuz Mayıs University, 55139 Samsun, Turkey
| | - Viktorya Aviyente
- Department of Chemistry, Faculty of Arts and Sciences, Bogazici University, Bebek, 34342, Istanbul, Turkey
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161
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Sticker D, Geczy R, Häfeli UO, Kutter JP. Thiol-Ene Based Polymers as Versatile Materials for Microfluidic Devices for Life Sciences Applications. ACS APPLIED MATERIALS & INTERFACES 2020; 12:10080-10095. [PMID: 32048822 DOI: 10.1021/acsami.9b22050] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
While there is a steady growth in the number of microfluidics applications, the search for an optimal material that delivers the diverse characteristics needed for the numerous tasks is still nowhere close to being settled. Often overlooked and still underrepresented, the thiol-ene family of polymer materials has an enormous potential for applications in organs-on-a-chip, droplet productions, microanalytics, and point of care testing. In this review, the main characteristics of the thiol-ene materials are given, and advantages and drawbacks with respect to their potential in microfluidic chip fabrication are critically assessed. Select applications, which exploit the versatility of the thiol-ene polymers, are presented and discussed. It is concluded that, in particular, the rapid prototyping possibility combined with the material's resulting mechanical strength, solvent resistance, and biocompatibility, as well as the inherently easy surface functionalization, are strong factors to make thiol-ene polymers strong contenders for promising future materials for many biological, clinical, and technical lab-on-a-chip applications.
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Affiliation(s)
- Drago Sticker
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, 2100 Copenhagen, Denmark
| | - Reka Geczy
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, 2100 Copenhagen, Denmark
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Urs O Häfeli
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, 2100 Copenhagen, Denmark
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Jörg P Kutter
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, 2100 Copenhagen, Denmark
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162
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Arslan M, Pulido BA, Nunes SP, Yagci Y. Functionalization of Poly(oxindole biphenylylene) membranes by photoinduced thiol-yne click chemistry. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2019.117673] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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163
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Supramolecular block copolymers as novel UV and NIR responsive nanocarriers based on a photolabile coumarin unit. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.109561] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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164
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Fischer J, Metzsch-Zilligen E, Zou M, Pfaendner R. A novel class of high molecular weight multifunctional antioxidants for polymers based on thiol-ene click reaction. Polym Degrad Stab 2020. [DOI: 10.1016/j.polymdegradstab.2020.109099] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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165
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Li Y, Zhang Y, Goswami M, Vincent D, Wang L, Liu T, Li K, Keum JK, Gao Z, Ozcan S, Gluesenkamp KR, Rios O, Kessler MR. Liquid crystalline networks based on photo-initiated thiol-ene click chemistry. SOFT MATTER 2020; 16:1760-1770. [PMID: 31859322 DOI: 10.1039/c9sm01818b] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Photo-initiated thiol-ene click chemistry is used to develop shape memory liquid crystalline networks (LCNs). A biphenyl-based di-vinyl monomer is synthesized and cured with a di-thiol chain extender and a tetra-thiol crosslinker using UV light. The effects of photo-initiator concentration and UV light intensity on the curing behavior and liquid crystalline (LC) properties of the LCNs are investigated. The chemical composition is found to significantly influence the microstructure and the related thermomechanical properties of the LCNs. The structure-property relationship is further explored using molecular dynamics simulations, revealing that the introduction of the chain extender promotes the formation of an ordered smectic LC phase instead of agglomerated structures. The concentration of the chain extender affects the liquid crystallinity of the LCNs, resulting in distinct thermomechanical and shape memory properties. This class of LCNs exhibits fast curing rates, high conversion levels, and tailorable liquid crystallinity, making it a promising material system for advanced manufacturing, where complex and highly ordered structures can be produced with fast reaction kinetics and low energy consumption.
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Affiliation(s)
- Yuzhan Li
- Materials Science and Technology Division, Oak Ridge National Laboratory, 1 Bethel Valley Rd, Oak Ridge, TN 37831, USA.
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166
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Brun E, Zhang KF, Guénée L, Lacour J. Photo-induced thiol-ene reactions for late-stage functionalization of unsaturated polyether macrocycles: regio and diastereoselective access to macrocyclic dithiol derivatives. Org Biomol Chem 2020; 18:250-254. [PMID: 31808765 DOI: 10.1039/c9ob02375e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Double hydrothiolation of bis enol ether macrocycles was achieved under photo-mediated conditions. The thiol-ene reactions afford a fully regioselective anti-Markovnikov post-functionalization. Thanks to the use of ethanedithiol as reagent, moderate to excellent diastereoselectivity was accomplished leading to macrocycles containing four defined stereocenters in only three steps from 1,4-dioxane, tetrahydrofuran (THF) or tetrahydropyran (THP).
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Affiliation(s)
- Elodie Brun
- Department of Organic Chemistry, University of Geneva, Quai Ernest Ansermet 30, 1211 Geneva 4, Switzerland.
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167
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Love D, Fairbanks B, Bowman C. Reaction Environment Effect on the Kinetics of Radical Thiol-Ene Polymerizations in the Presence of Amines and Thiolate Anions. ACS Macro Lett 2020; 9:174-179. [PMID: 35638679 DOI: 10.1021/acsmacrolett.9b00960] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Because of facile implementation, quantitative conversions, and an insensitivity to oxygen, water, and most organic functional groups, radical-mediated thiol-ene coupling (TEC) reactions have emerged as a valuable tool in macromolecule synthesis. It was recently demonstrated that the kinetics and conversions of thiyl radical-mediated reactions are adversely affected in the presence of basic amines by the formation of retardive thiolate anions. Herein, the performance of TEC polymerizations is evaluated under a variety of reaction environments with the intention to aid in the optimal formulation design of TEC reactions in the presence of amines. Results from both bulk and aqueous-phase network photopolymerizations established that sensitivity to amine basicity and pH is dependent on the thiol acidity, although norbornene-type alkenes exhibit a unique ability to achieve high conversions, where allyl ethers, vinyl ether, and vinyl siloxanes are highly inhibited. Additionally, the protic solvents such as alcohols and acetic acid are established as ideal solvents or additives to suppress or eliminate amine-induced retardation.
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168
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Hong J, Choi S, Jwa DG, Kim M, Kang SM. Mussel-Inspired, One-Step Thiol Functionalization of Solid Surfaces. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:1608-1614. [PMID: 31995386 DOI: 10.1021/acs.langmuir.9b03646] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Mussel-inspired surface chemistry, in which catechol derivatives play an important role, has garnered extensive research interest owing to material-independent surface coating capability and easy implementation to a wide range of applications. Generally, sequential reactions comprising catechol oxidation, intramolecular reaction of oxidized catechols with nucleophiles, and intermolecular assembly result in polymers that can adhere to many diverse surfaces. Although amines and thiols have similar reactivity toward oxidized catechols, most studies have been conducted with catechol and amine groups as essentials. Surface coating with catechol-thiol has not been investigated. In this study, we show that 4-(2-mercapto-ethyl)-benzene-1,2-diol (catechol-thiol) can serve as a surface coating agent in the presence of a strong oxidant. A wide range of materials are coated with catechol-thiol, and an additional grafting of the functional molecules onto the surface is also performed through well-established thiol chemistry, Michael addition, and thiol-ene reaction.
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Affiliation(s)
- Jeongwoo Hong
- Department of Chemistry and BK21 Plus Research Team , Chungbuk National University , 1 Chungdae-ro , Seowon-gu, Cheongju 28644 , Republic of Korea
| | - Sangdon Choi
- Department of Chemistry and BK21 Plus Research Team , Chungbuk National University , 1 Chungdae-ro , Seowon-gu, Cheongju 28644 , Republic of Korea
| | - Dong Gyun Jwa
- Department of Chemistry and BK21 Plus Research Team , Chungbuk National University , 1 Chungdae-ro , Seowon-gu, Cheongju 28644 , Republic of Korea
| | - Min Kim
- Department of Chemistry and BK21 Plus Research Team , Chungbuk National University , 1 Chungdae-ro , Seowon-gu, Cheongju 28644 , Republic of Korea
| | - Sung Min Kang
- Department of Chemistry and BK21 Plus Research Team , Chungbuk National University , 1 Chungdae-ro , Seowon-gu, Cheongju 28644 , Republic of Korea
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169
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Yeo H, Khan A. Photoinduced Proton-Transfer Polymerization: A Practical Synthetic Tool for Soft Lithography Applications. J Am Chem Soc 2020; 142:3479-3488. [PMID: 32040308 DOI: 10.1021/jacs.9b11958] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Proton-transfer photopolymerization through the thiol-epoxy "click" reaction is shown to be a versatile new method for the fabrication of micro- and nanosized polymeric patterns. In this approach, complexation of a guanidine base, diazabicycloundecene (DBU), with benzoylphenylpropionic acid (ketoprofen) generates a photolabile salt. Under illumination at a wavelength of 365 nm, the salt undergoes a photodecarboxylation reaction to release DBU as a base. The base-catalyzed ring opening reaction then creates cross-linked poly(β-hydroxyl thio-ether) patterns. The surface chemistry of these patterns can be altered through alkylation of the thio-ether linkages. For example, a reaction with bromoacetic acid produces a hitherto unknown sulfonium/carboxylate-based zwitterionic motif that endows antibiofouling capacity to the micropatterns.
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Affiliation(s)
- Hyunki Yeo
- Department of Chemical and Biological Engineering , Korea University , 02841 Seoul , South Korea
| | - Anzar Khan
- Department of Chemical and Biological Engineering , Korea University , 02841 Seoul , South Korea
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170
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Undecenoic acid-based polydimethylsiloxanes obtained by hydrosilylation and hydrothiolation reactions. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2019.121074] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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171
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Synthesis of zwitterionic redox-responsive nanogels by one-pot amine-thiol-ene reaction for anticancer drug release application. REACT FUNCT POLYM 2020. [DOI: 10.1016/j.reactfunctpolym.2019.104463] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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172
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Sandoval-Yañez C, Castro Rodriguez C. Dendrimers: Amazing Platforms for Bioactive Molecule Delivery Systems. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E570. [PMID: 31991703 PMCID: PMC7040653 DOI: 10.3390/ma13030570] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 01/13/2020] [Accepted: 01/15/2020] [Indexed: 02/06/2023]
Abstract
Today, dendrimers are the main nanoparticle applied to drug delivery systems. The physicochemical characteristics of dendrimers and their versatility structural modification make them attractive to applied as a platform to bioactive molecules transport. Nanoformulations based on dendrimers enhance low solubility drugs, arrival to the target tissue, drugs bioavailability, and controlled release. This review describes the latter approaches on the transport of bioactive molecules based on dendrimers. The review focus is on the last therapeutic strategies addressed by dendrimers conjugated with bioactive molecules. A brief review of the latest studies in therapies against cancer and cardiovascular diseases, as well as future projections in the area, are addressed.
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Affiliation(s)
- Claudia Sandoval-Yañez
- Institute of Applied Chemical Sciences, Faculty of Engineering, Universidad Autonoma de Chile, El Llano Subercaseaux 2801, San Miguel 8910060, Santiago-Chile, Chile
| | - Cristian Castro Rodriguez
- Departamento de Química, Facultad de Ciencias, Universidad de Tarapacá, Avenida General Velásquez 1775, Arica-Chile 1000007, Chile;
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173
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Hoyos-Ceballos GP, Ruozi B, Ottonelli I, Da Ros F, Vandelli MA, Forni F, Daini E, Vilella A, Zoli M, Tosi G, Duskey JT, López-Osorio BL. PLGA-PEG-ANG-2 Nanoparticles for Blood-Brain Barrier Crossing: Proof-of-Concept Study. Pharmaceutics 2020; 12:E72. [PMID: 31963430 PMCID: PMC7023215 DOI: 10.3390/pharmaceutics12010072] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 01/10/2020] [Accepted: 01/14/2020] [Indexed: 11/16/2022] Open
Abstract
The treatment of diseases that affect the central nervous system (CNS) represents a great research challenge due to the restriction imposed by the blood-brain barrier (BBB) to allow the passage of drugs into the brain. However, the use of modified nanomedicines engineered with different ligands that can be recognized by receptors expressed in the BBB offers a favorable alternative for this purpose. In this work, a BBB-penetrating peptide, angiopep-2 (Ang-2), was conjugated to poly(lactic-co-glycolic acid) (PLGA)-based nanoparticles through pre- and post-formulation strategies. Then, their ability to cross the BBB was qualitatively assessed on an animal model. Proof-of-concept studies with fluorescent and confocal microscopy studies highlighted that the brain-targeted PLGA nanoparticles were able to cross the BBB and accumulated in neuronal cells, thus showing a promising brain drug delivery system.
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Affiliation(s)
- Gina P. Hoyos-Ceballos
- Grupo de Investigación Ciencia de los Materiales, Instituto de Química, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia, Calle 62 No. 52–59, Medellín 050015, Colombia;
| | - Barbara Ruozi
- Department of Life Sciences, University of Modena and Reggio Emilia, 41124 Modena, Italy; (B.R.); (I.O.); (F.D.R.); (M.A.V.); (F.F.)
| | - Ilaria Ottonelli
- Department of Life Sciences, University of Modena and Reggio Emilia, 41124 Modena, Italy; (B.R.); (I.O.); (F.D.R.); (M.A.V.); (F.F.)
| | - Federica Da Ros
- Department of Life Sciences, University of Modena and Reggio Emilia, 41124 Modena, Italy; (B.R.); (I.O.); (F.D.R.); (M.A.V.); (F.F.)
| | - Maria Angela Vandelli
- Department of Life Sciences, University of Modena and Reggio Emilia, 41124 Modena, Italy; (B.R.); (I.O.); (F.D.R.); (M.A.V.); (F.F.)
| | - Flavio Forni
- Department of Life Sciences, University of Modena and Reggio Emilia, 41124 Modena, Italy; (B.R.); (I.O.); (F.D.R.); (M.A.V.); (F.F.)
| | - Eleonora Daini
- Department of Biomedical, Metabolic and Neural Science, University of Modena and Reggio Emilia, 41124 Modena, Italy; (E.D.); (A.V.); (M.Z.)
| | - Antonietta Vilella
- Department of Biomedical, Metabolic and Neural Science, University of Modena and Reggio Emilia, 41124 Modena, Italy; (E.D.); (A.V.); (M.Z.)
| | - Michele Zoli
- Department of Biomedical, Metabolic and Neural Science, University of Modena and Reggio Emilia, 41124 Modena, Italy; (E.D.); (A.V.); (M.Z.)
| | - Giovanni Tosi
- Department of Life Sciences, University of Modena and Reggio Emilia, 41124 Modena, Italy; (B.R.); (I.O.); (F.D.R.); (M.A.V.); (F.F.)
| | - Jason T. Duskey
- Department of Life Sciences, University of Modena and Reggio Emilia, 41124 Modena, Italy; (B.R.); (I.O.); (F.D.R.); (M.A.V.); (F.F.)
| | - Betty L. López-Osorio
- Grupo de Investigación Ciencia de los Materiales, Instituto de Química, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia, Calle 62 No. 52–59, Medellín 050015, Colombia;
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174
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Dey S, Gupta A, Saha A, Pal S, Kumar S, Manna D. Sunlight-Mediated Thiol-Ene/Yne Click Reaction: Synthesis and DNA Transfection Efficiency of New Cationic Lipids. ACS OMEGA 2020; 5:735-750. [PMID: 31956824 PMCID: PMC6964310 DOI: 10.1021/acsomega.9b03413] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 11/27/2019] [Indexed: 06/10/2023]
Abstract
The design of green synthetic reaction conditions is very challenging, especially for biomaterials, but worthwhile if the compounds can be easily synthesized in the aqueous medium. Herein, we report the development of sunlight-mediated thiol-ene/yne click reaction in the presence of a catalytic amount of tert-butyl hydroperoxide (TBHP) in an aqueous medium. The optimized reaction conditions were successfully applied to synthesize a series of small molecules and lipids in a single step in the aqueous medium. The synthetic cationic lipid/co-lipid formed positively charged stable nanosized liposomes that effectually bind with the genetic materials. The in vitro DNA transfection and cellular uptake assays showed that the synthesized cationic lipids have comparable efficiency to commercially available Lipofectamine 2000. This mild synthetic strategy can also be used for smart design of novel or improvement of prevailing lipid-based nonviral gene delivery systems. Such chemical transformations in the aqueous medium are more environment-friendly than other reported thiol-ene/yne click reactions performed in an organic solvent medium.
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Affiliation(s)
- Subhasis Dey
- Department
of Chemistry and Department of Bioscience and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Anjali Gupta
- Department
of Chemistry and Department of Bioscience and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Abhishek Saha
- Department
of Chemistry and Department of Bioscience and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Sudipa Pal
- Department
of Chemistry and Department of Bioscience and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Sachin Kumar
- Department
of Chemistry and Department of Bioscience and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Debasis Manna
- Department
of Chemistry and Department of Bioscience and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
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175
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Levit M, Zashikhina N, Vdovchenko A, Dobrodumov A, Zakharova N, Kashina A, Rühl E, Lavrentieva A, Scheper T, Tennikova T, Korzhikova-Vlakh E. Bio-Inspired Amphiphilic Block-Copolymers Based on Synthetic Glycopolymer and Poly(Amino Acid) as Potential Drug Delivery Systems. Polymers (Basel) 2020; 12:polym12010183. [PMID: 32284516 PMCID: PMC7023050 DOI: 10.3390/polym12010183] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 01/03/2020] [Accepted: 01/05/2020] [Indexed: 12/27/2022] Open
Abstract
In this work, a method to prepare hybrid amphiphilic block copolymers consisting of biocompatible synthetic glycopolymer with non-degradable backbone and biodegradable poly(amino acid) (PAA) was developed. The glycopolymer, poly(2-deoxy-2-methacrylamido-D-glucose) (PMAG), was synthesized via reversible addition-fragmentation chain transfer (RAFT) polymerization. Two methods for modifying the terminal dithiobenzoate-group of PMAG was investigated to obtain the macroinitiator bearing a primary aliphatic amino group, which is required for ring-opening polymerization of N-carboxyanhydrides of hydrophobic α-amino acids. The synthesized amphiphilic block copolymers were carefully analyzed using a set of different physico-chemical methods to establish their composition and molecular weight. The developed amphiphilic copolymers tended to self-assemble in nanoparticles of different morphology that depended on the nature of the hydrophobic amino acid present in the copolymer. The hydrodynamic diameter, morphology, and cytotoxicity of polymer particles based on PMAG-b-PAA were evaluated using dynamic light scattering (DLS) and transmission electron microscopy (TEM), as well as CellTiter-Blue (CTB) assay, respectively. The redox-responsive properties of nanoparticles were evaluated in the presence of glutathione taken at different concentrations. Moreover, the encapsulation of paclitaxel into PMAG-b-PAA particles and their cytotoxicity on human lung carcinoma cells (A549) and human breast adenocarcinoma cells (MCF-7) were studied.
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Affiliation(s)
- Mariia Levit
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoy pr. 31, 199004 St. Petersburg, Russia; (M.L.); (N.Z.); (A.D.); or (N.Z.); (A.K.)
| | - Natalia Zashikhina
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoy pr. 31, 199004 St. Petersburg, Russia; (M.L.); (N.Z.); (A.D.); or (N.Z.); (A.K.)
| | - Alena Vdovchenko
- Institute of Chemistry, Saint-Petersburg State University, Universitetsky pr. 26, 198504 St. Petersburg, Russia; (A.V.); (T.T.)
| | - Anatoliy Dobrodumov
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoy pr. 31, 199004 St. Petersburg, Russia; (M.L.); (N.Z.); (A.D.); or (N.Z.); (A.K.)
| | - Natalya Zakharova
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoy pr. 31, 199004 St. Petersburg, Russia; (M.L.); (N.Z.); (A.D.); or (N.Z.); (A.K.)
| | - Anna Kashina
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoy pr. 31, 199004 St. Petersburg, Russia; (M.L.); (N.Z.); (A.D.); or (N.Z.); (A.K.)
| | - Eckart Rühl
- Physical Chemistry, Institute of Chemistry and Biochemistry, Freie Universität Berlin, 14195 Berlin, Germany;
| | - Antonina Lavrentieva
- Institute of Technical Chemistry, Gottfried-Wilhelm-Leibniz University of Hannover, 30167 Hannover, Germany; (A.L.); (T.S.)
| | - Thomas Scheper
- Institute of Technical Chemistry, Gottfried-Wilhelm-Leibniz University of Hannover, 30167 Hannover, Germany; (A.L.); (T.S.)
| | - Tatiana Tennikova
- Institute of Chemistry, Saint-Petersburg State University, Universitetsky pr. 26, 198504 St. Petersburg, Russia; (A.V.); (T.T.)
| | - Evgenia Korzhikova-Vlakh
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoy pr. 31, 199004 St. Petersburg, Russia; (M.L.); (N.Z.); (A.D.); or (N.Z.); (A.K.)
- Institute of Chemistry, Saint-Petersburg State University, Universitetsky pr. 26, 198504 St. Petersburg, Russia; (A.V.); (T.T.)
- Correspondence: ; Tel.: +7-(812)323-04-61
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176
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Li C, Kim H, An J, Cho M. Amplified photo-responses in sequentially polymerized azobenzene-containing polymer networks: the role of isomer interconnection. Polym Chem 2020. [DOI: 10.1039/c9py01825e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Sequentially polymerized azobenzene-containing polymer networks with isomer-interconnected features can greatly enhance photo-actuation responses.
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Affiliation(s)
- Chenzhe Li
- Institute of Advanced Machines and Design
- Seoul National University
- Seoul 151-742
- Republic of Korea
| | - Hyunsu Kim
- Department of Mechanical and Aerospace Engineering
- College of Engineering
- Seoul National University
- Seoul 151-742
- Republic of Korea
| | - Jongwon An
- Department of Mechanical and Aerospace Engineering
- College of Engineering
- Seoul National University
- Seoul 151-742
- Republic of Korea
| | - Maenghyo Cho
- Institute of Advanced Machines and Design
- Seoul National University
- Seoul 151-742
- Republic of Korea
- Department of Mechanical and Aerospace Engineering
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177
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Melnyk T, Đorđević S, Conejos-Sánchez I, Vicent MJ. Therapeutic potential of polypeptide-based conjugates: Rational design and analytical tools that can boost clinical translation. Adv Drug Deliv Rev 2020; 160:136-169. [PMID: 33091502 DOI: 10.1016/j.addr.2020.10.007] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Revised: 10/09/2020] [Accepted: 10/14/2020] [Indexed: 12/14/2022]
Abstract
The clinical success of polypeptides as polymeric drugs, covered by the umbrella term "polymer therapeutics," combined with related scientific and technological breakthroughs, explain their exponential growth in the development of polypeptide-drug conjugates as therapeutic agents. A deeper understanding of the biology at relevant pathological sites and the critical biological barriers faced, combined with advances regarding controlled polymerization techniques, material bioresponsiveness, analytical methods, and scale up-manufacture processes, have fostered the development of these nature-mimicking entities. Now, engineered polypeptides have the potential to combat current challenges in the advanced drug delivery field. In this review, we will discuss examples of polypeptide-drug conjugates as single or combination therapies in both preclinical and clinical studies as therapeutics and molecular imaging tools. Importantly, we will critically discuss relevant examples to highlight those parameters relevant to their rational design, such as linking chemistry, the analytical strategies employed, and their physicochemical and biological characterization, that will foster their rapid clinical translation.
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Affiliation(s)
- Tetiana Melnyk
- Centro de Investigación Príncipe Felipe, Polymer Therapeutics Lab, Av. Eduardo Primo Yúfera 3, E-46012 Valencia, Spain.
| | - Snežana Đorđević
- Centro de Investigación Príncipe Felipe, Polymer Therapeutics Lab, Av. Eduardo Primo Yúfera 3, E-46012 Valencia, Spain.
| | - Inmaculada Conejos-Sánchez
- Centro de Investigación Príncipe Felipe, Polymer Therapeutics Lab, Av. Eduardo Primo Yúfera 3, E-46012 Valencia, Spain.
| | - María J Vicent
- Centro de Investigación Príncipe Felipe, Polymer Therapeutics Lab, Av. Eduardo Primo Yúfera 3, E-46012 Valencia, Spain.
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178
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Mattsson I, Sitdikov R, Gunell ACM, Lahtinen M, Saloranta-Simell T, Leino R. Improved synthesis and application of conjugation-amenable polyols from d-mannose. RSC Adv 2020; 10:3960-3966. [PMID: 35492635 PMCID: PMC9048844 DOI: 10.1039/c9ra10378c] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Accepted: 01/14/2020] [Indexed: 01/08/2023] Open
Abstract
A series of polyhydroxyl sulfides and triazoles was prepared by reacting allyl and propargyl d-mannose derivatives with selected thiols and azides in thiol–ene and Huisgen click reactions. Conformational analysis by NMR spectroscopy proved that the intrinsic rigidity and linear conformation of the mannose derived polyol backbone is retained in the final click products in solution. Single crystal X-ray structure determination of one of the compounds prepared further verified that the linear conformation of the polyol segment is also retained in the solid state. In addition, an improved method for direct Barbier-type propargylation of unprotected d-mannose is reported. The new reaction protocol, involving tin-mediated propargylation in an acetonitrile-water mixture, provides access to multigram quantities of the desired, valuable alkyne polyol without relying on protecting group manipulations or chromatographic purification. An improved method for the propargylation of d-mannose and application of the rod-like polyol and its allylated analogue in click reactions is described.![]()
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Affiliation(s)
- Ida Mattsson
- Laboratory of Molecular Science and Technology
- Johan Gadolin Process Chemistry Centre
- Åbo Akademi University
- FI-20500 Turku
- Finland
| | - Ruzal Sitdikov
- Laboratory of Molecular Science and Technology
- Johan Gadolin Process Chemistry Centre
- Åbo Akademi University
- FI-20500 Turku
- Finland
| | - Andreas C. M. Gunell
- Laboratory of Molecular Science and Technology
- Johan Gadolin Process Chemistry Centre
- Åbo Akademi University
- FI-20500 Turku
- Finland
| | - Manu Lahtinen
- Department of Chemistry
- University of Jyväskylä
- FI-40014 Jyväskylä
- Finland
| | - Tiina Saloranta-Simell
- Laboratory of Molecular Science and Technology
- Johan Gadolin Process Chemistry Centre
- Åbo Akademi University
- FI-20500 Turku
- Finland
| | - Reko Leino
- Laboratory of Molecular Science and Technology
- Johan Gadolin Process Chemistry Centre
- Åbo Akademi University
- FI-20500 Turku
- Finland
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179
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Huang M, Bai D, Chen Q, Zhao C, Ren T, Huang C, North M, Xie H. Facile preparation of polycarbonates from bio-based eugenol and 2-methoxy-4-vinylphenol. Polym Chem 2020. [DOI: 10.1039/d0py00291g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Polymerization of α,ω-diene functionalized carbonate monomers prepared from bio-based eugenol and 2-methoxy-4-vinylphenol through thiol–ene click and ADMET polymerizations produced polycarbonates with moderate molecular weight satisfactory thermal properties.
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Affiliation(s)
- Mengqian Huang
- Department of Polymeric Materials & Engineering
- College of Materials & Metallurgy
- Guizhou University
- West Campus
- Guizhou University
| | - De Bai
- Department of Polymeric Materials & Engineering
- College of Materials & Metallurgy
- Guizhou University
- West Campus
- Guizhou University
| | - Qin Chen
- Department of Polymeric Materials & Engineering
- College of Materials & Metallurgy
- Guizhou University
- West Campus
- Guizhou University
| | - Changbo Zhao
- Department of Polymeric Materials & Engineering
- College of Materials & Metallurgy
- Guizhou University
- West Campus
- Guizhou University
| | - Tianhua Ren
- Department of Polymeric Materials & Engineering
- College of Materials & Metallurgy
- Guizhou University
- West Campus
- Guizhou University
| | - Caijuan Huang
- Department of Polymeric Materials & Engineering
- College of Materials & Metallurgy
- Guizhou University
- West Campus
- Guizhou University
| | - Michael North
- Green Chemistry Centre of Excellence
- Department of Chemistry
- University of York
- York
- UK
| | - Haibo Xie
- Department of Polymeric Materials & Engineering
- College of Materials & Metallurgy
- Guizhou University
- West Campus
- Guizhou University
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180
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Arslan M, Sanyal R, Sanyal A. Thiol-reactive thiosulfonate group containing copolymers: facile entry to disulfide-mediated polymer conjugation and redox-responsive functionalizable networks. Polym Chem 2020. [DOI: 10.1039/c9py01851d] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, we report a synthetic approach to thiol-reactive polymers containing methanethiosulfonate groups as side chains, and demonstrate their application in post-polymerization functionalization through reversible disulfide linkages.
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Affiliation(s)
- Mehmet Arslan
- Department of Polymer Engineering
- Faculty of Engineering
- Yalova University
- Yalova
- Turkey
| | - Rana Sanyal
- Department of Chemistry
- Bogazici University
- Istanbul
- Turkey
- Center for Life Sciences and Technologies
| | - Amitav Sanyal
- Department of Chemistry
- Bogazici University
- Istanbul
- Turkey
- Center for Life Sciences and Technologies
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181
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Wan H, Zhou S, Gu P, Zhou F, Lyu D, Xu Q, Wang A, Shi H, Xu Q, Lu J. AIE-active polysulfates via a sulfur(vi) fluoride exchange (SuFEx) click reaction and investigation of their two-photon fluorescence and cyanide detection in water and in living cells. Polym Chem 2020. [DOI: 10.1039/c9py01448a] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Three polysulfates P1, P2 and P3 containing two representative AIE-active groups, tetraphenyl ethylene and naphthylamide, were successfully synthesized based on a sulfur(vi) fluoride exchange (SuFEx) click reaction.
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182
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József J, Debreczeni N, Eszenyi D, Borbás A, Juhász L, Somsák L. Synthesis and photoinitiated thiol–ene reactions of exo-mannals – a new route to C-β-d-mannosyl derivatives. RSC Adv 2020; 10:34825-34836. [PMID: 35514420 PMCID: PMC9056834 DOI: 10.1039/d0ra07115c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 09/06/2020] [Indexed: 01/19/2023] Open
Abstract
Syntheses of acyl protected exo-mannal derivatives were developed starting from O-peracylated mannopyranoses via the corresponding anhydro-aldose tosylhydrazones under modified Bamford–Stevens conditions. The synthesis of analogous O-peralkylated (benzylated and isopropylenated) derivatives was carried out from pyranoid and furanoid mannonolactones using methylene transfer reagents. Photoinitiated thiol–ene additions of these exo-mannals resulted in the corresponding C-(mannopyranosyl/mannofuranosyl)methyl sulfides in medium to good yields with exclusive regio- and β(d) stereoselectivities. A synthetic procedure was elaborated for O-peracylated exo-mannals. Thiol-ene additions to pyranoid and furanoid exo-mannals gave mannosylmethyl sulfide type adducts with exclusive regio- and β(d)-stereoselectivities including disaccharide mimetics.![]()
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Affiliation(s)
- János József
- Department of Organic Chemistry
- University of Debrecen
- H-4002 Debrecen
- Hungary
- University of Debrecen
| | - Nóra Debreczeni
- Department of Pharmaceutical Chemistry
- University of Debrecen
- H-4002 Debrecen
- Hungary
- University of Debrecen
| | - Dániel Eszenyi
- Department of Pharmaceutical Chemistry
- University of Debrecen
- H-4002 Debrecen
- Hungary
| | - Anikó Borbás
- Department of Pharmaceutical Chemistry
- University of Debrecen
- H-4002 Debrecen
- Hungary
| | - László Juhász
- Department of Organic Chemistry
- University of Debrecen
- H-4002 Debrecen
- Hungary
| | - László Somsák
- Department of Organic Chemistry
- University of Debrecen
- H-4002 Debrecen
- Hungary
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183
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Abstract
Shear-thinning hydrogels that utilize thiol-Michael chain-extension and free radical polymerization have a tunable stretchability.
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Affiliation(s)
- Dylan Karis
- Department of Chemistry
- University of Washington
- Seattle
- USA
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184
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Hao X, Wenren H, Wang X, Xia X, Tu J. A gel polymer electrolyte based on PVDF-HFP modified double polymer matrices via ultraviolet polymerization for lithium-sulfur batteries. J Colloid Interface Sci 2020; 558:145-154. [DOI: 10.1016/j.jcis.2019.09.116] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 09/26/2019] [Accepted: 09/28/2019] [Indexed: 12/28/2022]
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185
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Eom T, Khan A. Disulfides as mercapto-precursors in nucleophilic ring opening reaction of polymeric epoxides: establishing equimolar stoichiometric conditions in a thiol–epoxy ‘click’ reaction. Chem Commun (Camb) 2020; 56:7419-7422. [DOI: 10.1039/d0cc02601h] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This work establishes equimolar stoichiometric conditions in a thiol–epoxy ‘click’ reaction.
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Affiliation(s)
- Taejun Eom
- Department of Chemical and Biological Engineering
- Korea University
- Seoul 02841
- Korea
| | - Anzar Khan
- Department of Chemical and Biological Engineering
- Korea University
- Seoul 02841
- Korea
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186
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Abstract
Highly efficient synthesis of multifunctional initiators based on cyclodextrin (CD) cores was achieved by a thiol–ene photoclick strategy. They were successfully employed in a “core-first” approach to prepare multiarm star polymers via ATRP.
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Affiliation(s)
- Yi Yi
- Department of Chemistry
- Indiana University
- Bloomington
- USA
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187
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Stubbs CJ, Worch JC, Prydderch H, Becker ML, Dove AP. Unsaturated Poly(ester-urethanes) with Stereochemically Dependent Thermomechanical Properties. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b01700] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Connor J. Stubbs
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, U.K
| | - Joshua C. Worch
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, U.K
| | - Hannah Prydderch
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, U.K
| | - Matthew L. Becker
- Department of Chemistry, Department of Mechanical Engineering & Materials Science, Department of Orthopaedic Surgery, Duke University, 308 Research Drive, Durham, North Carolina 27708, United States
| | - Andrew P. Dove
- School of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, U.K
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188
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Illy N, Urayeneza D, Maryasevskaya AV, Michely L, Boileau S, Brissault B, Bersenev EA, Anokhin DV, Ivanov DA, Penelle J. Synthesis and Solid-State Properties of PolyC 3 (Co)polymers Containing (CH 2–CH 2–C(COOR) 2) Repeat Units with Densely Packed Fluorocarbon Lateral Chains. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b01559] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Nicolas Illy
- Institut de Chimie et des Matériaux Paris-Est (East Paris Institute for Chemistry & Materials Science), Université Paris-Est and CNRS, 2-8 rue H. Dunant, F-94320 Thiais, France
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, Equipe Chimie des Polymères, 4 place Jussieu, F-75005 Paris, France
| | - Deogratias Urayeneza
- Institut de Chimie et des Matériaux Paris-Est (East Paris Institute for Chemistry & Materials Science), Université Paris-Est and CNRS, 2-8 rue H. Dunant, F-94320 Thiais, France
| | - Alina V. Maryasevskaya
- Faculty of Fundamental Physical and Chemical Engineering, Lomonosov Moscow State University, GSP-1, 1-51 Leninskie Gory, 119991 Moscow, Russian Federation
- Moscow Institute of Physics and Technology (National Research University), Institutskiy per. 9, 141701 Dolgoprudny, Russian Federation
- Institute of Problems of Chemical Physics, Russian Academy of Sciences, Semenov Av. 1, Chernogolovka, 142432 Moscow Region, Russian Federation
| | - Laurent Michely
- Institut de Chimie et des Matériaux Paris-Est (East Paris Institute for Chemistry & Materials Science), Université Paris-Est and CNRS, 2-8 rue H. Dunant, F-94320 Thiais, France
| | - Sylvie Boileau
- Institut de Chimie et des Matériaux Paris-Est (East Paris Institute for Chemistry & Materials Science), Université Paris-Est and CNRS, 2-8 rue H. Dunant, F-94320 Thiais, France
| | - Blandine Brissault
- Institut de Chimie et des Matériaux Paris-Est (East Paris Institute for Chemistry & Materials Science), Université Paris-Est and CNRS, 2-8 rue H. Dunant, F-94320 Thiais, France
| | - Egor A. Bersenev
- Moscow Institute of Physics and Technology (National Research University), Institutskiy per. 9, 141701 Dolgoprudny, Russian Federation
- Institute of Problems of Chemical Physics, Russian Academy of Sciences, Semenov Av. 1, Chernogolovka, 142432 Moscow Region, Russian Federation
| | - Denis V. Anokhin
- Faculty of Fundamental Physical and Chemical Engineering, Lomonosov Moscow State University, GSP-1, 1-51 Leninskie Gory, 119991 Moscow, Russian Federation
- Moscow Institute of Physics and Technology (National Research University), Institutskiy per. 9, 141701 Dolgoprudny, Russian Federation
- Institute of Problems of Chemical Physics, Russian Academy of Sciences, Semenov Av. 1, Chernogolovka, 142432 Moscow Region, Russian Federation
| | - Dimitri A. Ivanov
- Faculty of Fundamental Physical and Chemical Engineering, Lomonosov Moscow State University, GSP-1, 1-51 Leninskie Gory, 119991 Moscow, Russian Federation
- Moscow Institute of Physics and Technology (National Research University), Institutskiy per. 9, 141701 Dolgoprudny, Russian Federation
- Institut de Sciences des Matériaux de Mulhouse-IS2M, CNRS UMR 7361, Jean Starcky, 15, F-68057 Mulhouse, France
| | - Jacques Penelle
- Institut de Chimie et des Matériaux Paris-Est (East Paris Institute for Chemistry & Materials Science), Université Paris-Est and CNRS, 2-8 rue H. Dunant, F-94320 Thiais, France
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189
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Muroi R, Sugane K, Shibata M. Self-healing thiol-ene networks based on cyclodextrin-adamantane host-guest interactions. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.121990] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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190
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Yap PL, Kabiri S, Auyoong YL, Tran DNH, Losic D. Tuning the Multifunctional Surface Chemistry of Reduced Graphene Oxide via Combined Elemental Doping and Chemical Modifications. ACS OMEGA 2019; 4:19787-19798. [PMID: 31788611 PMCID: PMC6882126 DOI: 10.1021/acsomega.9b02642] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Accepted: 10/28/2019] [Indexed: 06/02/2023]
Abstract
The synthesis of graphene materials with multiple surface chemistries and functionalities is critical for further improving their properties and broadening their emerging applications. We present a simple chemical approach to obtain bulk quantities of multifunctionalized reduced graphene oxide (rGO) that combines chemical doping and functionalization using the thiol-ene click reaction. Controllable modulation of chemical multifunctionality was achieved by simultaneous nitrogen doping and gradual chemical reduction of graphene oxide (GO) using ammonia and hydrazine, followed by covalent attachment of amino-terminated thiol molecules using the thiol-ene click reaction. A series of N-doped rGO (N-rGO) precursors with different levels of oxygen groups were synthesized by adjusting the amount of reducing agent (hydrazine), followed by subsequent covalent attachment of cysteamine via the thermal thiol-ene click reaction to yield different ratios of mixed functional groups including N (pyrrolic N, graphitic N, and aminic N), S (thioether S, thiophene S, and S oxides), and O (hydroxyl O, carbonyl O, and carboxyl O) on the reduced GO surface. Detailed XPS analysis confirmed the disappearance of unstable pyridinic N in cys-N-rGO and the reduction degree threshold of N-rGO for effective cysteamine modification to take place. Our study establishes a strong correlation between different reduction degrees of N-rGO with several existing oxygen functional groups and addition of new tunable functionalities including covalently attached nitrogen (amino) and sulfur (C-S-C, C=S, and S-O). This simple and versatile approach provides a valuable contribution for practical designing and synthesis of a broad range of functionalized graphene materials with tailorable functionalities, doping levels, and interfacial properties for potential applications such as polymer composites, supercapacitors, electrocatalysis, adsorption, and sensors.
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Affiliation(s)
- Pei Lay Yap
- School
of Chemical Engineering and Advanced Materials and ARC Hub for Graphene
Enabled Industry Transformation, The University
of Adelaide, Adelaide, SA 5005, Australia
| | - Shervin Kabiri
- School
of Chemical Engineering and Advanced Materials and ARC Hub for Graphene
Enabled Industry Transformation, The University
of Adelaide, Adelaide, SA 5005, Australia
- School
of Agriculture, Food and Wine, The University
of Adelaide, PMB 1, Waite
Campus, Glen Osmond, SA 5064, Australia
| | - Yow Loo Auyoong
- Research
& Business Partnerships, Research Services, The University of Adelaide, Adelaide, SA 5000, Australia
| | - Diana N. H. Tran
- School
of Chemical Engineering and Advanced Materials and ARC Hub for Graphene
Enabled Industry Transformation, The University
of Adelaide, Adelaide, SA 5005, Australia
| | - Dusan Losic
- School
of Chemical Engineering and Advanced Materials and ARC Hub for Graphene
Enabled Industry Transformation, The University
of Adelaide, Adelaide, SA 5005, Australia
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191
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Extremely rapid postfunctionalization of maleate and fumarate main chain polyesters in the presence of TBD. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.121844] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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192
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Valles DJ, Naeem Y, Rozenfeld AY, Aldasooky RW, Wong AM, Carbonell C, Mootoo DR, Braunschweig AB. Multivalent binding of concanavalin A on variable-density mannoside microarrays. Faraday Discuss 2019; 219:77-89. [PMID: 31364656 PMCID: PMC6824935 DOI: 10.1039/c9fd00028c] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Interactions between cell surface glycans and glycan binding proteins (GBPs) have a central role in the immune response, pathogen-host recognition, cell-cell communication, and a myriad other biological processes. Because of the weak association between GBPs and glycans in solution, multivalent and cooperative interactions in the dense glycocalyx have an outsized role in directing binding affinity and selectivity. However, a major challenge in glycobiology is that few experimental approaches exist for examining and understanding quantitatively how glycan density affects avidity with GBPs, and there is a need for new tools that can fabricate glycan arrays with the ability to vary their density controllably and systematically in each feature. Here, we use thiol-ene reactions to fabricate glycan arrays using a recently developed photochemical printer that leverages a digital micromirror device and microfluidics to create multiplexed patterns of immobilized mannosides, where the density of mannosides in each feature was varied by dilution with an inert spacer allyl alcohol. The association between these immobilized glycans and FITC-labeled concanavalin A (ConA) - a tetrameric GBP that binds to mannosides multivalently - was measured by fluorescence microscopy. We observed that the fluorescence decreased nonlinearly with increasing spacer concentration in the features, and we present a model that relates the average mannoside-mannoside spacing to the abrupt drop-off in ConA binding. Applying these recent advances in microscale photolithography to the challenge of mimicking the architecture of the glycocalyx could lead to a rapid understanding of how information is trafficked on the cell surface.
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Affiliation(s)
- Daniel J Valles
- The PhD Program in Chemistry, Graduate Center of the City University of New York, 365 5th Ave, New York, NY 10016, USA.
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193
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Neumann S, Biewend M, Rana S, Binder WH. The CuAAC: Principles, Homogeneous and Heterogeneous Catalysts, and Novel Developments and Applications. Macromol Rapid Commun 2019; 41:e1900359. [PMID: 31631449 DOI: 10.1002/marc.201900359] [Citation(s) in RCA: 112] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 09/06/2019] [Indexed: 01/08/2023]
Abstract
The copper-catalyzed azide/alkyne cycloaddition reaction (CuAAC) has emerged as the most useful "click" chemistry. Polymer science has profited enormously from CuAAC by its simplicity, ease, scope, applicability and efficiency. Basic principles of the CuAAC are reviewed with a focus on homogeneous and heterogeneous catalysts, ligands, anchimeric assistance, and basic chemical principles. Recent developments of ligand design and acceleration are discussed.
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Affiliation(s)
- Steve Neumann
- Institute of Chemistry, Chair of Macromolecular Chemistry, Martin-Luther University Halle-Wittenberg, von Danckelmannplatz 4, D-06120, Halle (Saale), Germany
| | - Michel Biewend
- Institute of Chemistry, Chair of Macromolecular Chemistry, Martin-Luther University Halle-Wittenberg, von Danckelmannplatz 4, D-06120, Halle (Saale), Germany
| | - Sravendra Rana
- School of Engineering University of Petroleum and Energy Studies (UPES), Dehradun, Uttarakhand, 248007, India
| | - Wolfgang H Binder
- Institute of Chemistry, Chair of Macromolecular Chemistry, Martin-Luther University Halle-Wittenberg, von Danckelmannplatz 4, D-06120, Halle (Saale), Germany
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194
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Herwig G, Dove AP. Synthesis of Rapidly Surface Eroding Polyorthoesters and Polyacetals Using Thiol-ene Click Chemistry. ACS Macro Lett 2019; 8:1268-1274. [PMID: 35651156 DOI: 10.1021/acsmacrolett.9b00463] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Polyorthoesters are generally considered to be highly biocompatible, surface-eroding materials. However, sensitive intermediates and poor mechanical performance have largely prevented their widespread application to date. Herein, a simple and versatile method to synthesize orthoester- and acetal-based polymers is presented. Using 2-methylene-1,3-dioxe-5-pene as a stable bifunctional monomer, sequential highly selective "click" reactions led initially to the formation of orthoesters (OE) in a Markovnikov alcohol addition or acetals via anti-Markovnikov thiol-ene addition. Subsequent photoinitiated thiol addition onto the remaining endocyclic and backbone alkene functionalities lead to thioether formation to produce a class of poly(orthoester-thioether)s or poly(acetal-thioether)s via a step-growth polymerization. While all obtained polymers were found to possess a weight-average molecular weight of above 10 kg·mol-1, the application of an OE monomer with additional double bond functionality led to a cross-linked polymer network which displayed surface-erosion behavior.
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Affiliation(s)
- Gordon Herwig
- School of Chemistry, The University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K
- Department of Chemistry, The University of Warwick, Gibbet Hill, Coventry CV4 7AL, U.K
| | - Andrew P. Dove
- School of Chemistry, The University of Birmingham, Edgbaston, Birmingham B15 2TT, U.K
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195
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Si H, Xing T, Ding Y, Zhang H, Yin R, Zhang W. 3D Bioprinting of the Sustained Drug Release Wound Dressing with Double-Crosslinked Hyaluronic-Acid-Based Hydrogels. Polymers (Basel) 2019; 11:E1584. [PMID: 31569810 PMCID: PMC6835267 DOI: 10.3390/polym11101584] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 09/13/2019] [Accepted: 09/25/2019] [Indexed: 12/23/2022] Open
Abstract
Hyaluronic acid (HA)-based hydrogels are widely used in biomedical applications due to their excellent biocompatibility. HA can be Ultraviolet (UV)-crosslinked by modification with methacrylic anhydride (HA-MA) and crosslinked by modification with 3,3'-dithiobis(propionylhydrazide) (DTP) (HA-SH) via click reaction. In the study presented in this paper, a 3D-bioprinted, double-crosslinked, hyaluronic-acid-based hydrogel for wound dressing was proposed. The hydrogel was produced by mixing HA-MA and HA-SH at different weight ratios. The rheological test showed that the storage modulus (G') of the HA-SH/HA-MA hydrogel increased with the increase in the HA-MA content. The hydrogel had a high swelling ratio and a high controlled degradation rate. The in vitro degradation test showed that the hydrogel at the HA-SH/HA-MA ratio of 9:1 (S9M1) degraded by 89.91% ± 2.26% at 11 days. The rheological performance, drug release profile and the cytocompatibility of HA-SH/HA-MA hydrogels with loaded Nafcillin, which is an antibacterial drug, were evaluated. The wound dressing function of this hydrogel was evaluated by Live/Dead staining and CCK-8 assays. The foregoing results imply that the proposed HA-SH/HA-MA hydrogel has promise in wound repair applications.
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Affiliation(s)
- Haopeng Si
- School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai 200237, China.
| | - Tianlong Xing
- Black Flame Biomedical Lt.D, Shanghai 201318, China.
| | - Yulong Ding
- School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai 200237, China.
| | - Hongbo Zhang
- School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai 200237, China.
| | - Ruixue Yin
- School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai 200237, China.
| | - Wenjun Zhang
- School of Mechatronics and Automation, Shanghai University, Shanghai 200444, China.
- Division of Biomedical Engineering, University of Saskatchewan, Saskatoon, SK S7N 5C9, Canada.
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196
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Co-immobilization of CD133 antibodies, vascular endothelial growth factors, and REDV peptide promotes capture, proliferation, and differentiation of endothelial progenitor cells. Acta Biomater 2019; 96:137-148. [PMID: 31284097 DOI: 10.1016/j.actbio.2019.07.004] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 06/26/2019] [Accepted: 07/03/2019] [Indexed: 12/18/2022]
Abstract
Capture of endothelial progenitor cells (EPCs) in situ has been considered as a promising strategy for the rapid endothelialization and long-term patency of artificial blood vessels and implant devices. In this study, a CD133+ EPC capture surface was fabricated by grafting CD133 antibody (a more specific EPC surface marker than CD34) and Arg-Glu-Asp-Val (REDV) peptideon the methacrylate-grafted hyaluronic acid (MA-HA) and heparin-hybridized (MA-HA&Heparin) resisting layer. Vascular endothelial growth factor (VEGF) was further conjugated to the immobilized heparin. This engineered surface showed good hemocompatibility and significantly higher ability of capturing CD133+ EPCs from human peripheral blood mononuclear cells (PBMCs) and obviously upregulated the expression of endothelial cell (EC) marker genes of EPCs such as VEGF receptor 2 (VEGFR2), CD31, VE-cadherin, and von Willebrand factor (vWF), facilitating the differentiation of EPCs into ECs. The dramatically enhanced EPC proliferation on this surface was dependent on the integrin-VEGFR synergistic signaling, as ERK1/2 phosphorylation was only significantly enhanced on the REDV and VEGF co-immobilized surface. This study highlights a new surface coating strategy for blood-contact materials based on the specific EPC capturing and rapid endothelialization. STATEMENT OF SIGNIFICANCE: Capture of endothelial progenitor cells (EPCs) in situ is a promising strategy for the rapid endothelialization and long-term patency of artificial blood vessels and scaffolds. More specific capture of EPCs by targeting CD133 rather than CD34 can better reduce the risk of inflammation and restenosis. On the other hand, an appropriate microenvironment for EPC proliferation is equally important for endothelialization, which is rarely considered by the existing EPC capture strategies. In this study, the capture ratio of EPCs was significantly increased by simultaneously grafting CD133 antibody and VEGF on a MA-HA and heparin-hybridized antifouling layer. Further, proliferation of EPCs after capture was significantly promoted by grafting VEGF and REDV peptide through the integrin-VEGFR synergistic signaling. This study highlights a new strategy for the surface coating of blood-contact materials based on specific EPC capture and rapid endothelialization.
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197
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Ghamat SN, Talebpour Z, Mehdi A. Click reactions: Recent trends in preparation of new sorbents and stationary phases for extraction and chromatographic applications. Trends Analyt Chem 2019. [DOI: 10.1016/j.trac.2019.06.029] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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198
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Deng R, Milton M, Pomarico SK, Weck M. Synthesis of a Heterotelechelic Helical Poly(methacrylamide) and its Incorporation into a Supramolecular Triblock Copolymer. Polym Chem 2019; 10:5087-5093. [PMID: 33312233 PMCID: PMC7730060 DOI: 10.1039/c9py01047e] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
We report the first heterotelechelic helical poly(methacrylamide) (PMAc) bearing orthogonal supramolecular binding sites on its chain-ends synthesized through a combination of reversible addition-fragmentation chain-transfer (RAFT) polymerization and thiol-bromo "click" chemistry. The heterotelechelic PMAc was assembled with two monotelechelic polymers featuring different secondary structures, namely a coil-like poly(styrene) and a helical poly(isocyanide), resulting in the formation of a coil-helix-helix supramolecular triblock copolymer through orthogonal metal coordination and hydrogen bonding interactions. Triblock assembly was confirmed through 1H NMR spectroscopy, isothermal titration calorimetry (ITC) and viscometry. The individual polymer blocks retained their secondary structures in the final triblock copolymer, as evidenced by circular dichroism (CD) spectroscopy. Our synthetic strategy expands the toolbox of triblock copolymers featuring structural motifs similar to the ones found in proteins and provides the potential for the development of other complex multifunctional polymeric ensembles.
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Affiliation(s)
- Ru Deng
- Department of Chemistry and Molecular Design Institute, New York University, New York, NY, USA
| | - Margarita Milton
- Department of Chemistry and Molecular Design Institute, New York University, New York, NY, USA
| | - Scott K Pomarico
- Department of Chemistry and Molecular Design Institute, New York University, New York, NY, USA
| | - Marcus Weck
- Department of Chemistry and Molecular Design Institute, New York University, New York, NY, USA
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199
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Synthetic approach for optically active polymers through the combination of asymmetric chirogenic polymerization and postpolymerization modification. Polym J 2019. [DOI: 10.1038/s41428-019-0248-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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200
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Chen DF, Boyle BM, McCarthy BG, Lim CH, Miyake GM. Controlling Polymer Composition in Organocatalyzed Photoredox Radical Ring-Opening Polymerization of Vinylcyclopropanes. J Am Chem Soc 2019; 141:13268-13277. [PMID: 31356063 PMCID: PMC6941592 DOI: 10.1021/jacs.9b07230] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Although radical polymerizations are among the most prevalent methodologies for the synthesis of polymers with diverse compositions and properties, the intrinsic reactivity and selectivity of radical addition challenge the ability to impart control over the polymerization propagation and produce polymers with defined microstructure. Vinylcyclopropanes (VCPs) can be polymerized through radical ring-opening polymerization to produce polymers possessing linear (l) or cyclic (c) repeat units, providing the opportunity to control polymer structure and modify the polymer properties. Herein, we report the first organocatalyzed photoredox radical ring-opening polymerization of a variety of functionalized VCP monomers, where high monomer conversions and spatial and temporal control were achieved to produce poly(VCPs) with predictable molecular weight and low dispersity. Through manipulating polymerization concentration and temperature, tunable l or c content was realized, allowing further investigation of thermal and viscoelastic materials properties associated with these two distinct compositions. Unexpectedly, the photoredox catalysis enables a postpolymerization modification that converts l content into the c content. Combined experimental and computational studies suggested an intramolecular radical cyclization pathway, where cyclopentane and cyclohexane repeat units are likely formed.
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Affiliation(s)
- Dian-Feng Chen
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Bret M. Boyle
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Blaine G. McCarthy
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Chern-Hooi Lim
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
- New Iridium LLC, Boulder, Colorado 80303, United States
| | - Garret M. Miyake
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
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