1
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Dziadek M, Dziadek K, Checinska K, Zagrajczuk B, Cholewa-Kowalska K. Bioactive Glasses Modulate Anticancer Activity and Other Polyphenol-Related Properties of Polyphenol-Loaded PCL/Bioactive Glass Composites. ACS APPLIED MATERIALS & INTERFACES 2024; 16:24261-24273. [PMID: 38709741 PMCID: PMC11103658 DOI: 10.1021/acsami.4c02418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2024] [Revised: 04/23/2024] [Accepted: 04/24/2024] [Indexed: 05/08/2024]
Abstract
In this work, bioactive glass (BG) particles obtained by three different methods (melt-quenching, sol-gel, and sol-gel-EISA) were used as modifiers of polyphenol-loaded PCL-based composites. The composites were loaded with polyphenolic compounds (PPh) extracted from sage (Salvia officinalis L.). It was hypothesized that BG particles, due to their different textural properties (porosity, surface area) and surface chemistry (content of silanol groups), would act as an agent to control the release of polyphenols from PCL/BG composite films and other significant properties associated with and affected by the presence of PPh. The polyphenols improved the hydrophilicity, apatite-forming ability, and mechanical properties of the composites and provided antioxidant and anticancer activity. As the BG particles had different polyphenol-binding capacities, they modulated the kinetics of polyphenol release from the composites and the aforementioned properties to a great extent. Importantly, the PPh-loaded materials exhibited multifaceted and selective anticancer activity, including ROS-mediated cell cycle arrest and apoptosis of osteosarcoma (OS) cells (Saos-2) via Cdk2-, GADD45G-, and caspase-3/7-dependent pathways. The materials showed a cytotoxic and antiproliferative effect on cancerous osteoblasts but not on normal human osteoblasts. These results suggest that the composites have great potential as biomaterials for treating bone defects, particularly following surgical removal of OS tumors.
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Affiliation(s)
- Michal Dziadek
- Faculty
of Materials Science and Ceramics, Department of Glass Technology
and Amorphous Coatings, AGH University of
Krakow, 30 Mickiewicza
Ave., 30-059 Krakow, Poland
| | - Kinga Dziadek
- Faculty
of Food Technology, Department of Human Nutrition and Dietetics, University of Agriculture in Krakow, 122 Balicka St., 30-149 Krakow, Poland
| | - Kamila Checinska
- Faculty
of Materials Science and Ceramics, Department of Glass Technology
and Amorphous Coatings, AGH University of
Krakow, 30 Mickiewicza
Ave., 30-059 Krakow, Poland
| | - Barbara Zagrajczuk
- Faculty
of Materials Science and Ceramics, Department of Glass Technology
and Amorphous Coatings, AGH University of
Krakow, 30 Mickiewicza
Ave., 30-059 Krakow, Poland
| | - Katarzyna Cholewa-Kowalska
- Faculty
of Materials Science and Ceramics, Department of Glass Technology
and Amorphous Coatings, AGH University of
Krakow, 30 Mickiewicza
Ave., 30-059 Krakow, Poland
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2
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Sasaki Y, Nishizawa Y, Watanabe T, Kureha T, Uenishi K, Nakazono K, Takata T, Suzuki D. Nanoparticle-Based Tough Polymers with Crack-Propagation Resistance. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023. [PMID: 37327130 DOI: 10.1021/acs.langmuir.3c01226] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Although thin elastomer films of polymer nanoparticles are regarded as environmentally friendly materials, the low mechanical strength of the films limits their use in various applications. In the present study, we investigated the fracture resistance of latex films composed of acrylic nanoparticles where a small quantity of a rotaxane crosslinker was introduced. In contrast to conventional nanoparticle-based elastomers, the latex films composed of the rotaxane-crosslinked nanoparticles exhibited unusual crack propagation behavior; the direction of crack propagation changed from a direction parallel to the crack to one perpendicular to the crack, resulting in an increase in tear resistance. These findings will help to broaden the scope of design of new types of tough polymers composed of environmentally friendly polymer nanoparticles.
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Affiliation(s)
- Yuma Sasaki
- Graduate School of Textile Science & Technology, Shinshu University, 3-15-1 Tokida, Ueda, Nagano 386-8567, Japan
| | - Yuichiro Nishizawa
- Graduate School of Textile Science & Technology, Shinshu University, 3-15-1 Tokida, Ueda, Nagano 386-8567, Japan
| | - Takumi Watanabe
- Graduate School of Textile Science & Technology, Shinshu University, 3-15-1 Tokida, Ueda, Nagano 386-8567, Japan
| | - Takuma Kureha
- Department of Frontier Materials Chemistry, Graduate School of Science and Technology, Hirosaki University, 3 Bunkyo-cho, Hirosaki 036-8561, Japan
| | - Kazuya Uenishi
- Yokohama Rubber Co., Ltd., 2-1 Oiwake, Hiratsuka, Kanagawa 254-8601, Japan
| | - Kazuko Nakazono
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan
| | - Toshikazu Takata
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa 226-8503, Japan
- Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527, Japan
| | - Daisuke Suzuki
- Graduate School of Textile Science & Technology, Shinshu University, 3-15-1 Tokida, Ueda, Nagano 386-8567, Japan
- Research Initiative for Supra-Materials, Interdisciplinary Cluster for Cutting Edge Research, Shinshu University, 3-15-1 Tokida, Ueda, Nagano 386-8567, Japan
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3
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Aguirre M, Ballard N, Gonzalez E, Hamzehlou S, Sardon H, Calderon M, Paulis M, Tomovska R, Dupin D, Bean RH, Long TE, Leiza JR, Asua JM. Polymer Colloids: Current Challenges, Emerging Applications, and New Developments. Macromolecules 2023; 56:2579-2607. [PMID: 37066026 PMCID: PMC10101531 DOI: 10.1021/acs.macromol.3c00108] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 03/02/2023] [Indexed: 04/18/2023]
Abstract
Polymer colloids are complex materials that have the potential to be used in a vast array of applications. One of the main reasons for their continued growth in commercial use is the water-based emulsion polymerization process through which they are generally synthesized. This technique is not only highly efficient from an industrial point of view but also extremely versatile and permits the large-scale production of colloidal particles with controllable properties. In this perspective, we seek to highlight the central challenges in the synthesis and use of polymer colloids, with respect to both existing and emerging applications. We first address the challenges in the current production and application of polymer colloids, with a particular focus on the transition toward sustainable feedstocks and reduced environmental impact in their primary commercial applications. Later, we highlight the features that allow novel polymer colloids to be designed and applied in emerging application areas. Finally, we present recent approaches that have used the unique colloidal nature in unconventional processing techniques.
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Affiliation(s)
- Miren Aguirre
- POLYMAT,
Kimika Fakultatea, University of the Basque
Country UPV/EHU, Joxe Mari Korta Zentroa, Tolosa Hiribidea 72, 20018 Donostia-San Sebastian, Spain
| | - Nicholas Ballard
- POLYMAT,
Kimika Fakultatea, University of the Basque
Country UPV/EHU, Joxe Mari Korta Zentroa, Tolosa Hiribidea 72, 20018 Donostia-San Sebastian, Spain
- IKERBASQUE,
Basque Foundation for Science, Plaza Euskadi 5, 48009 Bilbao, Spain
| | - Edurne Gonzalez
- POLYMAT,
Kimika Fakultatea, University of the Basque
Country UPV/EHU, Joxe Mari Korta Zentroa, Tolosa Hiribidea 72, 20018 Donostia-San Sebastian, Spain
| | - Shaghayegh Hamzehlou
- POLYMAT,
Kimika Fakultatea, University of the Basque
Country UPV/EHU, Joxe Mari Korta Zentroa, Tolosa Hiribidea 72, 20018 Donostia-San Sebastian, Spain
| | - Haritz Sardon
- POLYMAT,
Kimika Fakultatea, University of the Basque
Country UPV/EHU, Joxe Mari Korta Zentroa, Tolosa Hiribidea 72, 20018 Donostia-San Sebastian, Spain
| | - Marcelo Calderon
- POLYMAT,
Kimika Fakultatea, University of the Basque
Country UPV/EHU, Joxe Mari Korta Zentroa, Tolosa Hiribidea 72, 20018 Donostia-San Sebastian, Spain
- IKERBASQUE,
Basque Foundation for Science, Plaza Euskadi 5, 48009 Bilbao, Spain
| | - Maria Paulis
- POLYMAT,
Kimika Fakultatea, University of the Basque
Country UPV/EHU, Joxe Mari Korta Zentroa, Tolosa Hiribidea 72, 20018 Donostia-San Sebastian, Spain
| | - Radmila Tomovska
- POLYMAT,
Kimika Fakultatea, University of the Basque
Country UPV/EHU, Joxe Mari Korta Zentroa, Tolosa Hiribidea 72, 20018 Donostia-San Sebastian, Spain
- IKERBASQUE,
Basque Foundation for Science, Plaza Euskadi 5, 48009 Bilbao, Spain
| | - Damien Dupin
- CIDETEC,
Parque Científico y Tecnológico de Gipuzkoa, P° Miramón 196, 20014 Donostia-San Sebastian, Spain
| | - Ren H. Bean
- Biodesign
Institute, Center for Sustainable Macromolecular Materials and Manufacturing
(SM3), School of Molecular Sciences, Arizona
State University, Tempe, Arizona 85281, United States
| | - Timothy E. Long
- Biodesign
Institute, Center for Sustainable Macromolecular Materials and Manufacturing
(SM3), School of Molecular Sciences, Arizona
State University, Tempe, Arizona 85281, United States
| | - Jose R. Leiza
- POLYMAT,
Kimika Fakultatea, University of the Basque
Country UPV/EHU, Joxe Mari Korta Zentroa, Tolosa Hiribidea 72, 20018 Donostia-San Sebastian, Spain
| | - José M. Asua
- POLYMAT,
Kimika Fakultatea, University of the Basque
Country UPV/EHU, Joxe Mari Korta Zentroa, Tolosa Hiribidea 72, 20018 Donostia-San Sebastian, Spain
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4
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Argaiz M, Aguirre M, Tomovska R. Towards improved performance of waterborne polymer dispersions through creation of dense ionic interparticle network within their films. POLYMER 2023. [DOI: 10.1016/j.polymer.2022.125571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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5
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Kennedy KM, Ngunjiri J, Binder JB, DeFelippis J, DenBleyker W, Mallozzi M, Pujari S. Variation in adhesion properties and film morphologies of waterborne pressure‐sensitive adhesives containing an acid‐rich diblock copolymer additive. J Appl Polym Sci 2022. [DOI: 10.1002/app.53335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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6
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Dron SM, Bohorquez SJ, Mestach D, Paulis M. Reducing the amount of coalescing aid in high performance waterborne polymeric coatings. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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7
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Jiménez N, Ruipérez F, González de San Román E, Asua JM, Ballard N. Fundamental Insights into Free-Radical Polymerization in the Presence of Catechols and Catechol-Functionalized Monomers. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c02103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Nerea Jiménez
- POLYMAT and Departamento de Química Aplicada, Facultad de Ciencias Químicas, University of the Basque Country UPV/EHU, Joxe Mari Korta zentroa, Tolosa Hiribidea 72, 20018 Donostia-San Sebastián, Spain
| | - Fernando Ruipérez
- POLYMAT and Departamento de Química Aplicada, Facultad de Ciencias Químicas, University of the Basque Country UPV/EHU, Joxe Mari Korta zentroa, Tolosa Hiribidea 72, 20018 Donostia-San Sebastián, Spain
- Department of Physical Chemistry, Faculty of Pharmacy, University of the Basque Country UPV/EHU, Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain
| | - Estibaliz González de San Román
- POLYMAT and Departamento de Química Aplicada, Facultad de Ciencias Químicas, University of the Basque Country UPV/EHU, Joxe Mari Korta zentroa, Tolosa Hiribidea 72, 20018 Donostia-San Sebastián, Spain
| | - José M. Asua
- POLYMAT and Departamento de Química Aplicada, Facultad de Ciencias Químicas, University of the Basque Country UPV/EHU, Joxe Mari Korta zentroa, Tolosa Hiribidea 72, 20018 Donostia-San Sebastián, Spain
| | - Nicholas Ballard
- POLYMAT and Departamento de Química Aplicada, Facultad de Ciencias Químicas, University of the Basque Country UPV/EHU, Joxe Mari Korta zentroa, Tolosa Hiribidea 72, 20018 Donostia-San Sebastián, Spain
- Ikerbasque, Basque Foundation for Science, 48013 Bilbao, Spain
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8
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Kong S, Wang R, Feng S, Wang D. Tannic Acid as a Natural Crosslinker for Catalyst-Free Silicone Elastomers From Hydrogen Bonding to Covalent Bonding. Front Chem 2021; 9:778896. [PMID: 34733824 PMCID: PMC8558560 DOI: 10.3389/fchem.2021.778896] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Accepted: 10/04/2021] [Indexed: 11/13/2022] Open
Abstract
The construction of silicone elastomers crosslinked by a natural crosslinker under a catalyst-free method is highly desirable. Herein we present catalyst-free silicone elastomers (SEs) by simply introducing tannic acid (TA) as a natural crosslinker when using poly (aminopropylmethylsiloxane-co-dimethylsiloxane) (PAPMS) as the base polymer. The crosslinked bonding of these SEs can be easily changed from hydrogen bonding to covalent bonding by altering the curing reaction from room temperature to heating condition. The formability and mechanical properties of the SEs can be tuned by altering various factors, including processing technique, the amount of TA and aminopropyl-terminated polydimethylsiloxane, the molecular weight and -NH2 content of PAPMS, and the amount of reinforcing filler. The hydrogen bonding was proved by the reversible crosslinking of the elastomers, which can be gradually dissolved in tetrahydrofuran and re-formed after removing the solvent. The covalent bonding was proved by a model reaction of catechol and n-decylamine and occurred through a combination of hydroxylamine reaction and Michael addition reaction. These elastomers exhibit good thermal stability and excellent hydrophobic property and can bond iron sheets to hold the weight of 500 g, indicating their promising as adhesives. These results reveal that TA as a natural product is a suitable “green” crosslinker for the construction of catalyst-free silicone elastomers by a simple crosslinking strategy. Under this strategy, TA and more natural polyphenols could be certainly utilized as crosslinkers to fabricate more organic elastomers by selecting amine-containing polymers and further explore their extensive applications in adhesives, sealants, insulators, sensors, and so forth.
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Affiliation(s)
- Sen Kong
- National Engineering Research Center for Colloidal Materials and Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, China
| | - Rui Wang
- National Engineering Research Center for Colloidal Materials and Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, China
| | - Shengyu Feng
- National Engineering Research Center for Colloidal Materials and Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, China.,Shandong Key Laboratory of Advanced Organosilicon Materials and Technologies and State Key Laboratory of Fluorinated Functional Membrane Materials, Zibo, China
| | - Dengxu Wang
- National Engineering Research Center for Colloidal Materials and Key Laboratory of Special Functional Aggregated Materials, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, China.,Shandong Key Laboratory of Advanced Organosilicon Materials and Technologies and State Key Laboratory of Fluorinated Functional Membrane Materials, Zibo, China
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9
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Jimenez N, Ballard N, Asua J. Hydrogen-bond driven formation of microstructured pressure sensitive adhesives (PSAs) with enhanced shear resistance. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.124210] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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10
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Dziadek M, Dziadek K, Checinska K, Zagrajczuk B, Golda-Cepa M, Brzychczy-Wloch M, Menaszek E, Kopec A, Cholewa-Kowalska K. PCL and PCL/bioactive glass biomaterials as carriers for biologically active polyphenolic compounds: Comprehensive physicochemical and biological evaluation. Bioact Mater 2021; 6:1811-1826. [PMID: 34632164 PMCID: PMC8484899 DOI: 10.1016/j.bioactmat.2020.11.025] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 11/02/2020] [Accepted: 11/18/2020] [Indexed: 12/24/2022] Open
Abstract
In this work, polymeric and bioactive glass (BG)-modified composite films were successfully loaded with polyphenols (PPh) extracted from sage. It was hypothesized that PPh, alone and in combination with BGs particles, would affect physicochemical and biological properties of the films. Furthermore, sol-gel-derived BG particles would serve as an agent for control the release of the polyphenolic compounds, and other important properties related to the presence of PPh. The results showed that polyphenolic compounds significantly modified numerous material properties and also acted as biologically active substances. On the one hand, PPh can be considered as plasticizers for PCL, on the other hand, they can act as coupling agent in composite materials, improving their mechanical performance. The presence of PPh in materials improved their hydrophilicity and apatite-forming ability, and also provided antioxidant activity. What is important is that the aforementioned properties and kinetics of PPh release can be modulated by the use of various concentrations of PPh, and by the modification of PCL matrix with sol-gel-derived BG particles, capable of binding PPh. The films containing the lowest concentration of PPh exhibited cytocompatibility, significantly increased alkaline phosphatase activity and the expression of bone extracellular matrix proteins (osteocalcin and osteopontin) in human normal osteoblasts, while they reduced intracellular reactive oxygen species production in macrophages. Furthermore, materials loaded with PPh showed antibiofilm properties against Gram positive and Gram negative bacteria. The results suggest that obtained materials represent potential multifunctional biomaterials for bone tissue engineering with a wide range of tunable properties.
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Affiliation(s)
- Michal Dziadek
- Jagiellonian University, Faculty of Chemistry, 2 Gronostajowa St., 30-387, Krakow, Poland
- AGH University of Science and Technology, Faculty of Materials Science and Ceramics, Department of Glass Technology and Amorphous Coatings, 30 Mickiewicza Ave., 30-059, Krakow, Poland
| | - Kinga Dziadek
- University of Agriculture in Krakow, Faculty of Food Technology, Department of Human Nutrition and Dietetics, 122 Balicka St., 30-149, Krakow, Poland
| | - Kamila Checinska
- AGH University of Science and Technology, Faculty of Materials Science and Ceramics, Department of Glass Technology and Amorphous Coatings, 30 Mickiewicza Ave., 30-059, Krakow, Poland
| | - Barbara Zagrajczuk
- AGH University of Science and Technology, Faculty of Materials Science and Ceramics, Department of Glass Technology and Amorphous Coatings, 30 Mickiewicza Ave., 30-059, Krakow, Poland
| | - Monika Golda-Cepa
- Jagiellonian University, Faculty of Chemistry, 2 Gronostajowa St., 30-387, Krakow, Poland
| | - Monika Brzychczy-Wloch
- Jagiellonian University, Medical College, Department of Molecular Medical Microbiology, 18 Czysta St., 31-121, Krakow, Poland
| | - Elzbieta Menaszek
- Jagiellonian University, Medical College, Department of Cytobiology, 9 Medyczna St., 30-688, Krakow, Poland
| | - Aneta Kopec
- University of Agriculture in Krakow, Faculty of Food Technology, Department of Human Nutrition and Dietetics, 122 Balicka St., 30-149, Krakow, Poland
| | - Katarzyna Cholewa-Kowalska
- AGH University of Science and Technology, Faculty of Materials Science and Ceramics, Department of Glass Technology and Amorphous Coatings, 30 Mickiewicza Ave., 30-059, Krakow, Poland
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11
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Zhang D, Liu X, Yang Z, Shi J, Zhao L, Battino M, Xiao J, Deng X, Wu Y, Wang C, Shi B, Zou X. Interactions between Phenols and Alkylamides of Sichuan Pepper ( Zanthoxylum Genus) in α-Glucosidase Inhibition: A Structural Mechanism Analysis. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:5583-5598. [PMID: 33977724 DOI: 10.1021/acs.jafc.1c00741] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The phenols and alkylamides in 26 varieties of Zanthoxylum pericarps (ZP) were comparatively identified, and the contribution of these key components to the inhibition of in vitro α-glucosidase (α-Glu) was confirmed using principal component analysis (PCA) and ingredient recombination models. Additionally, spectrophotometric assays, nuclear magnetic resonance (NMR), and molecular docking (MD) were employed to characterize the interactions among key components in ZP when exposed to α-Glu. Four phenols and hydroxy-α-sanshool (α-SOH), which were recognized as main ingredients, presented an antagonistic effect in the inhibition of α-Glu. 1H NMR demonstrated chemical shifts of certain hydrogens in the B phenolic ring and tetraenyl group, indicating a possible p-π conjugation between phenols and α-SOH. In addition, using MD analysis, the phenol-binding sites were observed to be negatively affected when α-SOH initially interacted with α-Glu. The combined results of the NMR and MD clarified the structural mechanism behind phenol/α-SOH antagonistic behavior in α-Glu inhibition.
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Affiliation(s)
- Di Zhang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China.,Jiangsu Hengshun Group Co., Ltd., Zhenjiang 212000, China
| | - Xuhao Liu
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Zhikun Yang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Jiyong Shi
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Lei Zhao
- Food and Agriculture Standardization Institute, China National Institute of Standardization, Beijing 102200, China
| | - Maurizio Battino
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China.,International Research Center for Food Nutrition and Safety, Jiangsu University, Zhenjiang 212013, China.,Department of Clinical Sciences, Faculty of Medicine, Polytechnic University of Marche, 60121 Ancona, Italy
| | - Jianbo Xiao
- International Research Center for Food Nutrition and Safety, Jiangsu University, Zhenjiang 212013, China
| | - Xinyue Deng
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Yanling Wu
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Chengtao Wang
- Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology & Business University (BTBU), Beijing 100048, China
| | - Bolin Shi
- Food and Agriculture Standardization Institute, China National Institute of Standardization, Beijing 102200, China
| | - Xiaobo Zou
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
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12
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Yang Z, Guo W, Yang P, Hu J, Duan G, Liu X, Gu Z, Li Y. Metal-phenolic network green flame retardants. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.123627] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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13
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Dron SM, Paulis M. Tracking Hydroplasticization by DSC: Movement of Water Domains Bound to Poly(Meth)Acrylates during Latex Film Formation. Polymers (Basel) 2020; 12:E2500. [PMID: 33121187 PMCID: PMC7694145 DOI: 10.3390/polym12112500] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 10/23/2020] [Accepted: 10/26/2020] [Indexed: 11/21/2022] Open
Abstract
The film formation step of latexes constitutes one of the challenges of these environmentally friendly waterborne polymers, as the high glass transition (TG) polymers needed to produce hard films to be used as coatings will not produce coherent films at low temperature. This issue has been dealt by the use of temporary plasticizers added with the objective to reduce the TG of the polymers during film formation, while being released to the atmosphere afterwards. The main problem of these temporary plasticizers is their volatile organic nature, which is not recommended for the environment. Therefore, different strategies have been proposed to overcome their massive use. One of them is the use of hydroplasticization, as water, abundant in latexes, can effectively act as plasticizer for certain types of polymers. In this work, the effect of three different grafted hydroplasticizers has been checked in a (meth)acrylate copolymer, concluding that itaconic acid showed the best performance as seen by its low minimum film-formation temperature, just slightly modified water resistance and better mechanical properties of the films containing itaconic acid. Furthermore, film formation monitoring has been carried out by Differential Scanning Calorimety (DSC), showing that itaconic acid is able to retain more strongly the water molecules during the water losing process, improving its hydroplasticization capacity.
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Affiliation(s)
| | - Maria Paulis
- POLYMAT, University of the Basque Country UPV/EHU, Joxe Marti Korta Center, Avda. Tolosa 72, 20018 Donostia-San Sebastián, Spain;
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