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Zhong C, Nidetzky B. Bottom-Up Synthesized Glucan Materials: Opportunities from Applied Biocatalysis. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2400436. [PMID: 38514194 DOI: 10.1002/adma.202400436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 03/05/2024] [Indexed: 03/23/2024]
Abstract
Linear d-glucans are natural polysaccharides of simple chemical structure. They are comprised of d-glucosyl units linked by a single type of glycosidic bond. Noncovalent interactions within, and between, the d-glucan chains give rise to a broad variety of macromolecular nanostructures that can assemble into crystalline-organized materials of tunable morphology. Structure design and functionalization of d-glucans for diverse material applications largely relies on top-down processing and chemical derivatization of naturally derived starting materials. The top-down approach encounters critical limitations in efficiency, selectivity, and flexibility. Bottom-up approaches of d-glucan synthesis offer different, and often more precise, ways of polymer structure control and provide means of functional diversification widely inaccessible to top-down routes of polysaccharide material processing. Here the natural and engineered enzymes (glycosyltransferases, glycoside hydrolases and phosphorylases, glycosynthases) for d-glucan polymerization are described and the use of applied biocatalysis for the bottom-up assembly of specific d-glucan structures is shown. Advanced material applications of the resulting polymeric products are further shown and their important role in the development of sustainable macromolecular materials in a bio-based circular economy is discussed.
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Affiliation(s)
- Chao Zhong
- Institute of Biotechnology and Biochemical Engineering, Graz University of Technology, NAWI Graz, Petersgasse 12, Graz, 8010, Austria
| | - Bernd Nidetzky
- Institute of Biotechnology and Biochemical Engineering, Graz University of Technology, NAWI Graz, Petersgasse 12, Graz, 8010, Austria
- Austrian Centre of Industrial Biotechnology (acib), Krenngasse 37, Graz, 8010, Austria
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2
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Yu M, Zhu S, Li Y, Zhong F, Huang D, Chen X. Role of phenolic acids with different functional groups in the regulation of starch digestion in simulated dietary intake patterns. Int J Biol Macromol 2023; 235:123815. [PMID: 36841394 DOI: 10.1016/j.ijbiomac.2023.123815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 02/14/2023] [Accepted: 02/19/2023] [Indexed: 02/27/2023]
Abstract
This study investigated the effects of phenolic acids with different functional groups (cinnamic acid: CIA, caffeic acid: CA, ferulic acid: FA) on corn starch (CS) digestibility by simulating dietary intake patterns (co-heating and non-co-heating) and their mechanism. Both treatments could reduce the digestibility of CS. Compared to the non-co-heating treatment, the resistant starch content of 10 % CA co-heating samples increased by 8.36 %. The co-heating case led to a decrease in the trough viscosity, peak viscosity, and final viscosity of CS. Phenolic acids reduced the short-range order of CS, which was due to the interaction through hydrogen bonding by co-heating. The contribution was most pronounced for CA which contained more hydroxyl groups on the benzene ring. Quartz Crystal microbalance tests further confirmed that different absorption of phenolic acids to CS was caused by their hydroxyl groups on the benzene ring. These results demonstrated that the functional groups of phenolic acids were a controllable factor in inhibiting starch digestion, and co-heating could be considered a promising method to control starch digestion and an advocating way to ingest phenolic supplements.
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Affiliation(s)
- Meihui Yu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi 214122, China; International Joint Laboratory on Food Safety, Jiangnan University, Wuxi 214122, China
| | - Song Zhu
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China; International Joint Laboratory on Food Safety, Jiangnan University, Wuxi 214122, China
| | - Yue Li
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi 214122, China.
| | - Fang Zhong
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Dejian Huang
- Department of Food Science and Technology, National University of Singapore, Singapore 117542, Singapore
| | - Xuemei Chen
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China; National Engineering Research Center for Function Food, Jiangnan University, Wuxi 214122, China
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Yang J, Huang B, Lv Z, Cao Z. Preparation and self-assembly of ionic (PNIPAM- co-VIM) microgels and their adsorption property for phosphate ions. RSC Adv 2023; 13:3425-3437. [PMID: 36756607 PMCID: PMC9871875 DOI: 10.1039/d2ra06678e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Accepted: 01/09/2023] [Indexed: 01/26/2023] Open
Abstract
Using N-isopropyl acrylamide (NIPAM) as the main monomer, 1-vinyl imidazole (VIM) containing tertiary amine groups as the functional comonomer, and 1,5-dibromo pentane as the crosslinking agent, ionic P(NIPAM-co-VIM) microgels were prepared by a two-step method. The crosslinking agent was reacted with tertiary amino groups by the quaternary amination. The results of zeta potential and particle size analysis showed that P(NIPAM-co-VIM) microgels were positively charged and had a particle size of about 400 nm, and the microgels with 11 wt% VIM still showed temperature sensitivity with a volume phase transition temperature of approximately 37.5 °C. The effects of VIM content, ambient temperature, and pH on the adsorption properties of the microgels for phosphate anions were explored. The self-assembly of the positively charged P(NIPAM-co-VIM) microgels with polyelectrolytes and the adsorption behavior of the layers for phosphate anions were studied using a quartz crystal microbalance (QCM). It was found that at a phosphate concentration of 0.3 mg mL-1, VIM mass fraction of 11%, pH of 5, and temperature of 20 °C, the largest adsorption capacity of P(NIPAM-co-VIM) microgel on phosphate ions could reach 346.3 mg g-1. The frequency responses of the microgel-modified QCM sensor could reach 3.0, 18.8, and 25.9 Hz when exposed to 10-8, 10-7, and 10-6 M phosphate solutions. Therefore, the ionic (PNIPAM-co-VIM) microgels could be promising for fabricating anion-binding materials for separation and sensing applications.
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Affiliation(s)
- Jianping Yang
- Department of Orthopedics, Changzhou Hospital of Traditional Chinese Medicine 25 Heping North Road Changzhou 213000 Jiangsu P. R. China
| | - Bei Huang
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Changzhou University Changzhou 213164 Jiangsu P. R. China
| | - Zhengxiang Lv
- Department of Orthopedics, Changzhou Hospital of Traditional Chinese Medicine 25 Heping North Road Changzhou 213000 Jiangsu P. R. China
| | - Zheng Cao
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Changzhou University Changzhou 213164 Jiangsu P. R. China .,National Experimental Demonstration Center for Materials Science and Engineering (Changzhou University) Changzhou 213164 P. R. China
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4
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Cao Z, Zhang Y, Luo Z, Li W, Fu T, Qiu W, Lai Z, Cheng J, Yang H, Ma W, Liu C, de Smet LCPM. Construction of a Self-Assembled Polyelectrolyte/Graphene Oxide Multilayer Film and Its Interaction with Metal Ions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:12148-12162. [PMID: 34618452 DOI: 10.1021/acs.langmuir.1c02058] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
In this study, a composite multilayer film onto gold was constructed from two charged building blocks, i.e., negatively charged graphene oxide (GO) and a branched polycation (polyethylenimine, PEI) via layer-by-layer (LbL) self-assembly technology, and this process was monitored in situ with quartz crystal microbalance (QCM) under different experimental conditions. This included the differences in frequency (Δf) as well as the changes in dissipation to yield information on the absorbed mass and viscoelastic properties of the formed PEI/GO multilayer films. The experimental conditions were optimized to obtain a high amount of the adsorbed mass of the self-assembled multilayer film. The surface morphology of the PEI/GO multilayer film onto gold was studied with atomic force microscopy (AFM). It was found that the positively charged PEI chains were combined with the oppositely charged GO to form an assembled film on the QCM sensor surface, in a wrapped and curled fashion. Raman and UV-vis spectra also showed that the intensities of the GO-characteristic signals are almost linearly related to the layer number. To explore the films for their use in divalent ion detection, the frequency response of the PEI/GO multilayer-modified QCM sensor to the exposure of aqueous solutions solution of Cu2+, Ca2+, Zn2+, and Sn2+ was further studied using QCM. Based on the Sauerbrey equation and the weight of different ions, the number of metal ions adsorbed per unit area on the surface of QCM sensors was calculated. For metal ion concentrations of 40 ppm, the adsorption capacities per unit area of Cu2+, Zn2+, Sn2+, and Ca2+ were found to be 1.7, 3.2, 0.7, and 4.9 nmol/cm2, respectively. Thus, in terms of the number of adsorbed ions per unit area, the QCM sensor modified by PEI/GO multilayer film shows the largest adsorption capacity of Ca2+. This can be rationalized by the relative hydration energies.
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Affiliation(s)
- Zheng Cao
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Changzhou University, Changzhou 213164, Jiangsu, People's Republic of China
- Changzhou University Huaide College, Jingjiang 214500, People's Republic of China
- College of Hua Loogeng, Changzhou University, Changzhou, 213164, People's Republic of China
- National Experimental Demonstration Center for Materials Science and Engineering, Changzhou University, Changzhou, 213164, People's Republic of China
| | - Yang Zhang
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Changzhou University, Changzhou 213164, Jiangsu, People's Republic of China
| | - Zili Luo
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Changzhou University, Changzhou 213164, Jiangsu, People's Republic of China
| | - Wenjun Li
- College of Hua Loogeng, Changzhou University, Changzhou, 213164, People's Republic of China
| | - Tao Fu
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Changzhou University, Changzhou 213164, Jiangsu, People's Republic of China
| | - Wang Qiu
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Changzhou University, Changzhou 213164, Jiangsu, People's Republic of China
| | - Zhirong Lai
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Changzhou University, Changzhou 213164, Jiangsu, People's Republic of China
| | - Junfeng Cheng
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Changzhou University, Changzhou 213164, Jiangsu, People's Republic of China
| | - Haicun Yang
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Changzhou University, Changzhou 213164, Jiangsu, People's Republic of China
| | - Wenzhong Ma
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Changzhou University, Changzhou 213164, Jiangsu, People's Republic of China
| | - Chunlin Liu
- Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Changzhou University, Changzhou 213164, Jiangsu, People's Republic of China
- Changzhou University Huaide College, Jingjiang 214500, People's Republic of China
| | - Louis C P M de Smet
- Laboratory of Organic Chemistry, Wageningen University, Stippeneng 4, 6708 WE Wageningen, The Netherlands
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Wu Y, Zhang Y, Wang K, Luo Z, Xue Z, Gao H, Cao Z, Cheng J, Liu C, Zhang L. Construction of Self-Assembled Polyelectrolyte/Cationic Microgel Multilayers and Their Interaction with Anionic Dyes Using Quartz Crystal Microbalance and Atomic Force Microscopy. ACS OMEGA 2021; 6:5764-5774. [PMID: 33681615 PMCID: PMC7931438 DOI: 10.1021/acsomega.0c06181] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Accepted: 02/03/2021] [Indexed: 05/05/2023]
Abstract
This study aimed to reveal the interaction between self-assembled multilayers and dye molecules in the environment, which is closely related to the multilayers' stable performance and service life. In this work, the pH-responsive poly (N-isopropylacrylamide-co-2-(dimethylamino) ethyl methacrylate) microgels were prepared by free-radical copolymerization and self-assembled with sodium alginate (SA) into multilayers by the layer-by-layer deposition method. Quartz crystal microbalance (QCM) and atomic force microscopy (AFM) results confirmed the construction of multilayers and the absorbed mass, resulting in a decrease in the frequency shift of the QCM sensor and the deposition of microgel particles on its surface. The interaction between the self-assembled SA/microgel multilayers and anionic dyes in the aqueous solution was further investigated by QCM, and it was found that the electrostatic attraction between dyes and microgels deposited on the QCM sensor surface was much larger than that of the microgels with SA in multilayers, leading to the release of the microgels from the self-assembled structure and a mass loss ratio of 27.6%. AFM observation of the multilayer morphology exposed to dyes showed that 29% of the microgels was peeled off, and the corresponding microgel imprints were generated on the surface. In contrast, the shape and size of the remaining self-assembled microgel particles did not change.
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Affiliation(s)
- Yinqiu Wu
- Jiangsu
Key Laboratory of Environmentally Friendly Polymeric Materials, School
of Materials Science and Engineering, Jiangsu Collaborative Innovation
Center of Photovoltaic Science and Engineering, Changzhou University, Changzhou 213164, Jiangsu, P. R. China
| | - Yang Zhang
- Jiangsu
Key Laboratory of Environmentally Friendly Polymeric Materials, School
of Materials Science and Engineering, Jiangsu Collaborative Innovation
Center of Photovoltaic Science and Engineering, Changzhou University, Changzhou 213164, Jiangsu, P. R. China
| | - Kailun Wang
- Jiangsu
Key Laboratory of Environmentally Friendly Polymeric Materials, School
of Materials Science and Engineering, Jiangsu Collaborative Innovation
Center of Photovoltaic Science and Engineering, Changzhou University, Changzhou 213164, Jiangsu, P. R. China
| | - Zili Luo
- Jiangsu
Key Laboratory of Environmentally Friendly Polymeric Materials, School
of Materials Science and Engineering, Jiangsu Collaborative Innovation
Center of Photovoltaic Science and Engineering, Changzhou University, Changzhou 213164, Jiangsu, P. R. China
| | - Zhiyu Xue
- Jiangsu
Key Laboratory of Environmentally Friendly Polymeric Materials, School
of Materials Science and Engineering, Jiangsu Collaborative Innovation
Center of Photovoltaic Science and Engineering, Changzhou University, Changzhou 213164, Jiangsu, P. R. China
| | - Hongxin Gao
- Jiangsu
Key Laboratory of Environmentally Friendly Polymeric Materials, School
of Materials Science and Engineering, Jiangsu Collaborative Innovation
Center of Photovoltaic Science and Engineering, Changzhou University, Changzhou 213164, Jiangsu, P. R. China
| | - Zheng Cao
- Jiangsu
Key Laboratory of Environmentally Friendly Polymeric Materials, School
of Materials Science and Engineering, Jiangsu Collaborative Innovation
Center of Photovoltaic Science and Engineering, Changzhou University, Changzhou 213164, Jiangsu, P. R. China
- Changzhou
University Huaide College, Jingjiang 214500, P. R. China
- National
Experimental Demonstration Center for Materials Science and Engineering
(Changzhou University), Changzhou 213164, P. R. China
| | - Junfeng Cheng
- Jiangsu
Key Laboratory of Environmentally Friendly Polymeric Materials, School
of Materials Science and Engineering, Jiangsu Collaborative Innovation
Center of Photovoltaic Science and Engineering, Changzhou University, Changzhou 213164, Jiangsu, P. R. China
| | - Chunlin Liu
- Jiangsu
Key Laboratory of Environmentally Friendly Polymeric Materials, School
of Materials Science and Engineering, Jiangsu Collaborative Innovation
Center of Photovoltaic Science and Engineering, Changzhou University, Changzhou 213164, Jiangsu, P. R. China
- Changzhou
University Huaide College, Jingjiang 214500, P. R. China
| | - Lei Zhang
- Key
Laboratory of Optic-electric Sensing and Analytical Chemistry for
Life Science, MOE; College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, No. 53 Zhengzhou Road, Qingdao 266042, P. R. China
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6
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Physicochemical properties of heat-moisture treated, stearic acid complexed starch: The effect of complexation time and temperature. Int J Biol Macromol 2021; 175:98-107. [PMID: 33508365 DOI: 10.1016/j.ijbiomac.2021.01.124] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 01/18/2021] [Accepted: 01/18/2021] [Indexed: 12/20/2022]
Abstract
Starch modification has been extensively studied to alter its physicochemical properties based on human needs. Lowering the digestion rate of starch is one of the interests in food science research, since when it is nutritionally improved, it can reduce the risk of human chronic diseases. In this study, heat-moisture treatment (HMT) followed by inclusion complexation with stearic acid at various temperatures and times was applied to improve the functional properties of starch. Thermal analysis suggested the formation of type I and type II complexes after complexation at 90 °C, indicated by a endothermal peak at 107 and 122 °C, respectively, while native starch after complexation only resulted in type I complexes. The formation of crystalline complexes was also confirmed by XRD showing peaks at 2θ = 13.1° and 20.1°. Furthermore, the modified starch displayed a higher pasting temperature, considerably less swelling and significantly lower viscosity behavior. This implied that the starch granules were thermally and mechanically more stable. The granular appearance of the modified starch was confirmed with light microscopy that presented more intact granules and less ruptured granules, even after heating to 90 °C. This study offers a way to upgrade the nutritional properties of starch.
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Gau E, Flecken F, Belthle T, Ambarwati M, Loos K, Pich A. Amylose-Coated Biohybrid Microgels by Phosphorylase-Catalyzed Grafting-From Polymerization. Macromol Rapid Commun 2019; 40:e1900144. [PMID: 31162765 DOI: 10.1002/marc.201900144] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 05/13/2019] [Indexed: 12/14/2022]
Abstract
Herein, the synthesis of amylose-coated, temperature-responsive poly(N-vinylcaprolactam) (VCL)-based copolymer microgels by enzyme-catalyzed grafting-from polymerization with phosphorylase b from rabbit muscle is reported. The phosphorylase is able to recognize the oligosaccharide maltoheptaose as primer and attach glucose units from the monomer glucose-1-phosphate to it, thereby forming amylose chains while releasing inorganic phosphate. Therefore, to enable the phosphorylase-catalyzed grafting-from polymerization of glucose-1-phosphate from the PVCL-based microgels, the maltoheptaose primer is covalently attached to the microgel in the first synthesis step. This is realized by adding N-(2-aminoethyl)methacrylamide (AEMAA) as a comonomer to the PVCL microgel to integrate primary amino groups and subsequent coupling of maltoheptaonolactone. Both the PVCL/AEMAA microgel as well as the obtained microgel-maltoheptaose construct are characterized in detail by dynamic light scattering, electrophoretic mobility measurements, IR spectroscopy, and atomic force microscopy. From the microgel-maltoheptaose construct, the grafting-from polymerization of glucose-1-phosphate is performed by the addition of phosphorylase b. Atomic force microscopy images clearly demonstrate the formation of an amylose shell around the microgels. The developed amylose-coated microgels open up promising application possibilities, for example, as colloidal scavengers, since amylose helices can serve as host molecules for inclusion of hydrophobic guest molecules.
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Affiliation(s)
- Elisabeth Gau
- DWI-Leibniz-Institute for Interactive Materials e.V., Forckenbeckstraße 50, 52074, Aachen, Germany.,Functional and Interactive Polymers, Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Worringerweg 2, 52074, Aachen, Germany
| | - Franziska Flecken
- DWI-Leibniz-Institute for Interactive Materials e.V., Forckenbeckstraße 50, 52074, Aachen, Germany.,Functional and Interactive Polymers, Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Worringerweg 2, 52074, Aachen, Germany
| | - Thomke Belthle
- DWI-Leibniz-Institute for Interactive Materials e.V., Forckenbeckstraße 50, 52074, Aachen, Germany.,Functional and Interactive Polymers, Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Worringerweg 2, 52074, Aachen, Germany
| | - Masyitha Ambarwati
- University of Groningen, Faculty of Science and Engineering, Macromolecular Chemistry & New Polymeric Materials, Zernike Institute for Advanced Materials, Nijenborgh 4, 9747 AG, Groningen, The Netherlands
| | - Katja Loos
- University of Groningen, Faculty of Science and Engineering, Macromolecular Chemistry & New Polymeric Materials, Zernike Institute for Advanced Materials, Nijenborgh 4, 9747 AG, Groningen, The Netherlands
| | - Andrij Pich
- DWI-Leibniz-Institute for Interactive Materials e.V., Forckenbeckstraße 50, 52074, Aachen, Germany.,Functional and Interactive Polymers, Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Worringerweg 2, 52074, Aachen, Germany.,Aachen Maastricht Institute for Biobased Materials (AMIBM), Maastricht University Brightlands Chemelot Campus, Urmonderbaan 22, 6167 RD, Geleen, The Netherlands
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Zygouri P, Tsoufis T, Kouloumpis A, Patila M, Potsi G, Sevastos AA, Sideratou Z, Katsaros F, Charalambopoulou G, Stamatis H, Rudolf P, Steriotis TA, Gournis D. Synthesis, characterization and assessment of hydrophilic oxidized carbon nanodiscs in bio-related applications. RSC Adv 2018. [DOI: 10.1039/c7ra11045f] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Hydrophilic oxidized carbon nanodiscs able to be used as drug delivery system and as support in nanobiocatalytic applications.
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9
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Lim MC, Park KH, Choi JH, Lee DH, Letona CAM, Baik MY, Park CS, Kim YR. Effect of short-chain fatty acids on the formation of amylose microparticles by amylosucrase. Carbohydr Polym 2016; 151:606-613. [DOI: 10.1016/j.carbpol.2016.05.105] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2016] [Revised: 05/27/2016] [Accepted: 05/28/2016] [Indexed: 01/12/2023]
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10
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Cao Z, Gordiichuk PI, Loos K, Sudhölter EJR, de Smet LCPM. The effect of guanidinium functionalization on the structural properties and anion affinity of polyelectrolyte multilayers. SOFT MATTER 2016; 12:1496-505. [PMID: 26658499 DOI: 10.1039/c5sm01655j] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Poly(allylamine hydrochloride) (PAH) is chemically functionalized with guanidinium (Gu) moieties in water at room temperature. The resulting PAH-Gu is used to prepare polyelectrolyte multilayers (PEMs) with poly(sodium 4-styrene sulfonate) (PSS) via layer-by-layer deposition. The polyelectrolyte (PE) adsorption processes are monitored real-time by optical reflectometry and a quartz crystal microbalance with dissipation monitoring (QCM-D). Compared to the reference PSS/PAH PEMs, the PSS/PAH-Gu PEMs show a lower amount of deposited PE materials, lower wet thickness, higher stability under alkaline conditions and higher rigidity. These differences are rationalized by the additional Gu-SO3(-) interactions, also affecting the conformation of the PE chains in the PEM. The interactions between the PEMs and various sodium salts (NaCl, NaNO3, Na2SO4 and NaH2PO4) are also monitored using QCM-D. From the changes in the frequency, dissipation responses and supportive Reflection Absorption Infrared Spectroscopy it is concluded that Gu-functionalized PEMs absorb more H2PO4(-) compared to the Gu-free reference PEMs. This can be understood by strong interactions between Gu and H2PO4(-), the differences in the anion hydration energy and the anion valency. It is anticipated that compounds like the presented Gu-functionalized PE may facilitate the further development of H2PO4(-) sensors and ion separation/recovery systems.
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Affiliation(s)
- Zheng Cao
- Organic Materials and Interfaces, Department of Chemical Engineering, Delft University of Technology, Julianalaan 136, 2628 BL Delft, The Netherlands.
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11
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Impact of starch content on protein adsorption characteristics in amphiphilic hybrid graft copolymers. Int J Biol Macromol 2016; 82:256-63. [DOI: 10.1016/j.ijbiomac.2015.09.038] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Revised: 08/27/2015] [Accepted: 09/22/2015] [Indexed: 11/20/2022]
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12
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Rachmawati R, de Gier HD, Woortman AJJ, Loos K. Synthesis of Telechelic and Three-Arm Polytetrahydrofuran-block-amylose. MACROMOL CHEM PHYS 2015. [DOI: 10.1002/macp.201500018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Rachmawati Rachmawati
- Zernike Institute for Advanced Materials; University of Groningen; Nijenborgh 4 9747AG Groningen The Netherlands
| | - Hilde D. de Gier
- Zernike Institute for Advanced Materials; University of Groningen; Nijenborgh 4 9747AG Groningen The Netherlands
| | - Albert J. J. Woortman
- Zernike Institute for Advanced Materials; University of Groningen; Nijenborgh 4 9747AG Groningen The Netherlands
| | - Katja Loos
- Zernike Institute for Advanced Materials; University of Groningen; Nijenborgh 4 9747AG Groningen The Netherlands
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13
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Rachmawati R, Woortman AJJ, Kumar K, Loos K. Inclusion Complexes Between Polytetrahydrofuran-b-Amylose Block Copolymers and Polytetrahydrofuran Chains. Macromol Biosci 2015; 15:812-28. [DOI: 10.1002/mabi.201400515] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2014] [Revised: 01/17/2015] [Indexed: 11/11/2022]
Affiliation(s)
- Rachmawati Rachmawati
- Zernike Institute for Advanced Materials; University of Groningen; Nijenborgh 4 9747AG Groningen The Netherlands
| | - Albert J. J. Woortman
- Zernike Institute for Advanced Materials; University of Groningen; Nijenborgh 4 9747AG Groningen The Netherlands
| | - Kamlesh Kumar
- Zernike Institute for Advanced Materials; University of Groningen; Nijenborgh 4 9747AG Groningen The Netherlands
| | - Katja Loos
- Zernike Institute for Advanced Materials; University of Groningen; Nijenborgh 4 9747AG Groningen The Netherlands
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14
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Manca M, Woortman AJJ, Mura A, Loos K, Loi MA. Localization and dynamics of amylose–lipophilic molecules inclusion complex formation in starch granules. Phys Chem Chem Phys 2015; 17:7864-71. [DOI: 10.1039/c4cp05001k] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Inclusion complex formation between lipophilic dye molecules and amylose polymers in starch granules is investigated using laser spectroscopy and microscopy.
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Affiliation(s)
- Marianna Manca
- Zernike Institute for Advanced Materials
- University of Groningen
- 9747 AG Groningen
- The Netherlands
| | - Albert J. J. Woortman
- Zernike Institute for Advanced Materials
- University of Groningen
- 9747 AG Groningen
- The Netherlands
| | - Andrea Mura
- Zernike Institute for Advanced Materials
- University of Groningen
- 9747 AG Groningen
- The Netherlands
- Dipartimento di Fisica
| | - Katja Loos
- Zernike Institute for Advanced Materials
- University of Groningen
- 9747 AG Groningen
- The Netherlands
| | - Maria Antonietta Loi
- Zernike Institute for Advanced Materials
- University of Groningen
- 9747 AG Groningen
- The Netherlands
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15
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Wu Y, Ma H, Gu D, He J. A quartz crystal microbalance as a tool for biomolecular interaction studies. RSC Adv 2015. [DOI: 10.1039/c5ra05549k] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
A quartz crystal microbalance was successfully applied to quantitatively analyze biomolecular interactions using a poly(ethylene glycol) matrix and equations for impedance analysis of frequency changes at multiple overtones.
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Affiliation(s)
- Yuanzi Wu
- Suzhou Institute of Nano-Tech and Nano-Bionics
- Chinese Academy of Sciences
- Suzhou 215125
- P. R. China
| | - Hongwei Ma
- Suzhou Institute of Nano-Tech and Nano-Bionics
- Chinese Academy of Sciences
- Suzhou 215125
- P. R. China
| | - Dayong Gu
- Institute of Disease Control and Prevention
- Shenzhen International Travel Health Care Center
- Shenzhen Entry-exit Inspection and Quarantine Bureau
- Shenzhen
- P. R. China
| | - Jian'an He
- Institute of Disease Control and Prevention
- Shenzhen International Travel Health Care Center
- Shenzhen Entry-exit Inspection and Quarantine Bureau
- Shenzhen
- P. R. China
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16
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Manca M, Woortman AJJ, Loos K, Loi MA. Imaging inclusion complex formation in starch granules using confocal laser scanning microscopy. STARCH-STARKE 2014. [DOI: 10.1002/star.201400118] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Marianna Manca
- Zernike Institute for Advanced Materials; University of Groningen; Nijenborgh Groningen The Netherlands
| | - Albert J. J. Woortman
- Zernike Institute for Advanced Materials; University of Groningen; Nijenborgh Groningen The Netherlands
| | - Katja Loos
- Zernike Institute for Advanced Materials; University of Groningen; Nijenborgh Groningen The Netherlands
| | - Maria A. Loi
- Zernike Institute for Advanced Materials; University of Groningen; Nijenborgh Groningen The Netherlands
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17
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Ryno LM, Reese C, Tolan M, O’Brien J, Short G, Sorriano G, Nettleton J, Fulton K, Iovine PM. Amphiphilic Graft Copolymers from End-Functionalized Starches: Synthesis, Characterization, Thin Film Preparation, and Small Molecule Loading. Biomacromolecules 2014; 15:2944-51. [DOI: 10.1021/bm500572v] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Lisa M. Ryno
- Department
of Chemistry and
Biochemistry, University of San Diego, San Diego, California 92110, United States
| | - Cassandra Reese
- Department
of Chemistry and
Biochemistry, University of San Diego, San Diego, California 92110, United States
| | - McKenzie Tolan
- Department
of Chemistry and
Biochemistry, University of San Diego, San Diego, California 92110, United States
| | - Jeffrey O’Brien
- Department
of Chemistry and
Biochemistry, University of San Diego, San Diego, California 92110, United States
| | - Gabriel Short
- Department
of Chemistry and
Biochemistry, University of San Diego, San Diego, California 92110, United States
| | - Gerardo Sorriano
- Department
of Chemistry and
Biochemistry, University of San Diego, San Diego, California 92110, United States
| | - Jason Nettleton
- Department
of Chemistry and
Biochemistry, University of San Diego, San Diego, California 92110, United States
| | - Kayleen Fulton
- Department
of Chemistry and
Biochemistry, University of San Diego, San Diego, California 92110, United States
| | - Peter M. Iovine
- Department
of Chemistry and
Biochemistry, University of San Diego, San Diego, California 92110, United States
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18
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Jiang Y, van Ekenstein GORA, Woortman AJJ, Loos K. Fully Biobased Unsaturated Aliphatic Polyesters from Renewable Resources: Enzymatic Synthesis, Characterization, and Properties. MACROMOL CHEM PHYS 2014. [DOI: 10.1002/macp.201400164] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yi Jiang
- Department of Polymer Chemistry; Zernike Institute for Advanced Materials; University of Groningen; Nijenborgh 4 9747 AG Groningen The Netherlands
- Dutch Polymer Institute (DPI); P.O. Box 902 5600 AX Eindhoven The Netherlands
| | - Gert O. R. Alberda van Ekenstein
- Department of Polymer Chemistry; Zernike Institute for Advanced Materials; University of Groningen; Nijenborgh 4 9747 AG Groningen The Netherlands
| | - Albert J. J. Woortman
- Department of Polymer Chemistry; Zernike Institute for Advanced Materials; University of Groningen; Nijenborgh 4 9747 AG Groningen The Netherlands
| | - Katja Loos
- Department of Polymer Chemistry; Zernike Institute for Advanced Materials; University of Groningen; Nijenborgh 4 9747 AG Groningen The Netherlands
- Dutch Polymer Institute (DPI); P.O. Box 902 5600 AX Eindhoven The Netherlands
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