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Li N, Luo HK, Chen AX, Tan JPK, Yang C, Ang MJY, Zeng H, Yang YY. Guanidinium-Perfunctionalized Polyhedral Oligomeric Silsesquioxanes as Highly Potent Antimicrobials against Planktonic Microbes, Biofilms, and Coronavirus. ACS APPLIED MATERIALS & INTERFACES 2023; 15:354-363. [PMID: 36534480 DOI: 10.1021/acsami.2c16493] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Supramolecules have been drawing increasing attention recently in addressing healthcare challenges caused by infectious pathogens. We herein report a novel class of guanidinium-perfunctionalized polyhedral oligomeric silsesquioxane (Gua-POSS) supramolecules with highly potent antimicrobial activities. The modular structure of Gua-POSS Tm-Cn consists of an inorganic T10 or T8 core (m = 10 or 8), flexible linear linkers of varying lengths (n = 1 or 3), and peripherally aligned cationic guanidinium groups as the membrane-binding units. Such Gua-POSS supramolecules with spherically arrayed guanidinium cations display high antimicrobial potency against Gram-positive (Staphylococcus aureus) and Gram-negative (Escherichia coli) bacteria, as well as fungus (Candida albicans), with the best showing excellently low minimal inhibitory concentrations (MICs) of 1.7-6.8 μM in media, yet with negligible hemolytic activity and low in vitro cytotoxicity to mammalian cells. More significantly, they can inhibit biofilm formation at around their MICs and near-completely break down preestablished difficult-to-break biofilms at 250 μg mL-1 (∼50 μM). Their strong antiviral efficacy was also experimentally demonstrated against the enveloped murine hepatitis coronavirus as a surrogate of the SARS-CoV species. Overall, this study provides a new design approach to novel classes of sphere-shaped organic-inorganic hybrid supramolecular materials, especially for potent antimicrobial, anti-biofilm, and antiviral applications.
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Affiliation(s)
- Ning Li
- Institute of Bioengineering and Bioimaging, A*STAR, 31 Biopolis Way, Singapore 138669
| | - He-Kuan Luo
- Institute of Sustainability for Chemicals, Energy and Environment, A*STAR, 1 Pesek Road, Jurong Island, Singapore 627833
| | - Adrielle Xianwen Chen
- Institute of Bioengineering and Bioimaging, A*STAR, 31 Biopolis Way, Singapore 138669
| | - Jeremy Pang Kern Tan
- Institute of Bioengineering and Bioimaging, A*STAR, 31 Biopolis Way, Singapore 138669
| | - Chuan Yang
- Institute of Bioengineering and Bioimaging, A*STAR, 31 Biopolis Way, Singapore 138669
| | - Melgious Jin Yan Ang
- Institute of Bioengineering and Bioimaging, A*STAR, 31 Biopolis Way, Singapore 138669
| | - Huaqiang Zeng
- College of Chemistry, Fuzhou University, Fuzhou, Fujian 350116, China
| | - Yi Yan Yang
- Institute of Bioengineering and Bioimaging, A*STAR, 31 Biopolis Way, Singapore 138669
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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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Liu Y, Kigure M, Okawa R, Takeda N, Unno M, Ouali A. Synthesis and characterization of tetrathiol-substituted double-decker or ladder silsesquioxane nano-cores. Dalton Trans 2021; 50:3473-3478. [PMID: 33660737 DOI: 10.1039/d1dt00042j] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Tetra(3-mercaptopropyl)-silsesquioxanes with double-decker (DDSQ) or ladder nano-cores were easily prepared from the corresponding tetraallyl derivatives through fast and convenient thiol-ene reactions. An additional tetrathiol-DDSQ with more flexible arms was also synthesized in high yield from the corresponding tetrachloro-DDSQ derivative. The three novel tetrathiol silsesquioxanes described represent versatile building blocks for the preparation of hybrid organic-inorganic materials.
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Affiliation(s)
- Yujia Liu
- Gunma University Initiative for Advanced Research (GIAR)-International Open Laboratory with ICGM, France.
| | - Mana Kigure
- Department of Chemistry and Chemical Biology, Graduate School of Science and Technology. Gunma University, Kiryu 376-8515, Japan
| | - Riho Okawa
- Department of Chemistry and Chemical Biology, Graduate School of Science and Technology. Gunma University, Kiryu 376-8515, Japan
| | - Nobuhiro Takeda
- Department of Chemistry and Chemical Biology, Graduate School of Science and Technology. Gunma University, Kiryu 376-8515, Japan
| | - Masafumi Unno
- Gunma University Initiative for Advanced Research (GIAR)-International Open Laboratory with ICGM, France. and Department of Chemistry and Chemical Biology, Graduate School of Science and Technology. Gunma University, Kiryu 376-8515, Japan
| | - Armelle Ouali
- Gunma University Initiative for Advanced Research (GIAR)-International Open Laboratory with ICGM, France. and ICGM, Univ Montpellier, CNRS, ENSCM, Montpellier 34296, France
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Xie C, Guo H, Zhao W, Zhang L. Environmentally Friendly Marine Antifouling Coating Based on a Synergistic Strategy. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:2396-2402. [PMID: 32036655 DOI: 10.1021/acs.langmuir.9b03764] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The development of environmentally friendly and long-term marine antifouling coating remains a huge challenge in the maritime industry. For this purpose, we developed a novel and efficient antifouling coating based on a synergistic strategy, incorporating contact inhibition, fouling repelling, and antifouling properties. Results demonstrated that the coating could efficiently resist the adhesion of protein, bacteria, and Navicula diatoms. More importantly, marine field tests showed the coating could efficiently inhibit biofouling for at least 8 months. This approach paves a new way for the development of environmentally friendly and long-term antifouling coating.
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Affiliation(s)
- Changhai Xie
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Frontier Science Center for Synthetic Biology, Tianjin University, Tianjin 300350, P. R. China
- Key Laboratory of Systems Bioengineering (MOE), Tianjin University, Tianjin 300350, P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin 300350, P. R. China
- Qingdao Institute for Marine Technology, Tianjin University, Qingdao 266235, P. R. China
| | - Hongshuang Guo
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Frontier Science Center for Synthetic Biology, Tianjin University, Tianjin 300350, P. R. China
- Key Laboratory of Systems Bioengineering (MOE), Tianjin University, Tianjin 300350, P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin 300350, P. R. China
- Qingdao Institute for Marine Technology, Tianjin University, Qingdao 266235, P. R. China
| | - Weiqiang Zhao
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Frontier Science Center for Synthetic Biology, Tianjin University, Tianjin 300350, P. R. China
- Key Laboratory of Systems Bioengineering (MOE), Tianjin University, Tianjin 300350, P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin 300350, P. R. China
- Qingdao Institute for Marine Technology, Tianjin University, Qingdao 266235, P. R. China
| | - Lei Zhang
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Frontier Science Center for Synthetic Biology, Tianjin University, Tianjin 300350, P. R. China
- Key Laboratory of Systems Bioengineering (MOE), Tianjin University, Tianjin 300350, P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin 300350, P. R. China
- Qingdao Institute for Marine Technology, Tianjin University, Qingdao 266235, P. R. China
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Cross-linking of dehydrofluorinated PVDF membranes with thiol modified polyhedral oligomeric silsesquioxane (POSS) and pure water flux analysis. J Memb Sci 2019. [DOI: 10.1016/j.memsci.2019.03.063] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Dual-functional fluorinated-thiolated silsesquioxane nanoparticles for UV nanoimprinting via thiol-ene chemistry. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.06.040] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Shibasaki S, Sasaki Y, Nakabayashi K, Mori H. Synthesis and metal complexation of dual-functionalized silsesquioxane nanoparticles by sequential thiol–epoxy click and esterification reactions. REACT FUNCT POLYM 2016. [DOI: 10.1016/j.reactfunctpolym.2016.08.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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