1
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Jiang XY, Li L, Yan JN, Wang C, Lai B, Wu HT. Binary hydrogels constructed from lotus rhizome starch and different types of carrageenan for dysphagia management: Nonlinear rheological behaviors and structural characteristics. Food Chem X 2024; 22:101466. [PMID: 38808164 PMCID: PMC11130679 DOI: 10.1016/j.fochx.2024.101466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2024] [Revised: 05/07/2024] [Accepted: 05/10/2024] [Indexed: 05/30/2024] Open
Abstract
This study focused on binary hydrogels constructed from lotus rhizome starch (LRS) and three types of carrageenan (κ-C, ι-C, and λ-C). The enthalpy of LRS gelatinization was reduced by 32.1%-88.4% with the incorporation of carrageenan. Compared with ι-C and λ-C, the conformations of κ-C more facilitated the development of the binary hydrogel network structure. The ability of the LRS/carrageenan binary hydrogel to immobilize water was mainly related to the effect of different types of carrageenan on starch molecular ordering. LRS-based hydrogels were recognized as level 4 in the International Dysphagia Diet Standardization Initiative (IDDSI) framework. Nevertheless, the incorporation of carrageenan significantly reduced the ability of the LRS hydrogel to resist stress under large deformations, which might be favorable to oral processing and swallowing. This research provides preliminary evidence for relevant industries to use carrageenan to adjust LRS hydrogel properties and improve the quality of starch-based foods for dysphagia management.
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Affiliation(s)
- Xin-Yu Jiang
- SKL of Marine Food Processing & Safety Control, National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Lin Li
- SKL of Marine Food Processing & Safety Control, National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Jia-Nan Yan
- SKL of Marine Food Processing & Safety Control, National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Ce Wang
- SKL of Marine Food Processing & Safety Control, National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Bin Lai
- SKL of Marine Food Processing & Safety Control, National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Hai-Tao Wu
- SKL of Marine Food Processing & Safety Control, National Engineering Research Center of Seafood, Collaborative Innovation Center of Seafood Deep Processing, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
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2
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Chavda D, Dutta D, Patel KN, Rathod AK, Kulig W, Manna M. Revealing the key structural features promoting the helical conformation in algal polysaccharide carrageenan in solution. Carbohydr Polym 2024; 331:121901. [PMID: 38388044 DOI: 10.1016/j.carbpol.2024.121901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 01/12/2024] [Accepted: 01/30/2024] [Indexed: 02/24/2024]
Abstract
Carrageenans are industrially important polysaccharides with tunable viscoelastic and gelation properties. The function of polysaccharide depends on its conformation and chemical composition. However, the solution conformations of carrageenans are highly debated, and the structure-function relationship remains elusive. Here, we have studied the intrinsic conformational behavior of a series of carrageenan hexamers in solution, using extensive all-atom classical MD and enhanced sampling. Our findings comprehensively delineate that carrageenans containing the 3,6-anhydrous bridge (κ-C, ι-C, θ-C, and non-sulfated β-C) adopt compact helical structures as their predominant conformation in solution, whereas carrageenans without the bridge (μ-C, ν-C, and λ-C) remain as extended loosely packed helices; opposing the 'coil-to-helix' paradigm. Glycosidic linkages access a few allowed orientations. We hypothesize that the 3,6-anhydrous bridge, irrespective of carrageenan's sulfation pattern, is essential for stabilizing the helical conformation at the single-chain level. It provides necessary flexibility to the glycosidic linkage to sample conformations close to the experimentally derived helical structure and also prevents the sugar ring flipping. Sulfate groups mainly modify the chain stiffness due to steric and stereo-electronic effects and participate in hydrogen bonding. Such atomistic insights will be helpful for understanding the differential gelation mechanisms of carrageenans and fine-tuning polysaccharide backbone for various industrial applications.
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Affiliation(s)
- Dhruvil Chavda
- Applied Phycology and Biotechnology Division, CSIR Central Salt & Marine Chemicals Research Institute, Bhavnagar 364002, Gujarat, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Debangkana Dutta
- Applied Phycology and Biotechnology Division, CSIR Central Salt & Marine Chemicals Research Institute, Bhavnagar 364002, Gujarat, India
| | - Keyur N Patel
- Applied Phycology and Biotechnology Division, CSIR Central Salt & Marine Chemicals Research Institute, Bhavnagar 364002, Gujarat, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Arun K Rathod
- Applied Phycology and Biotechnology Division, CSIR Central Salt & Marine Chemicals Research Institute, Bhavnagar 364002, Gujarat, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Waldemar Kulig
- Department of Physics, University of Helsinki, P.O. Box 64, FI-00014, Helsinki, Finland
| | - Moutusi Manna
- Applied Phycology and Biotechnology Division, CSIR Central Salt & Marine Chemicals Research Institute, Bhavnagar 364002, Gujarat, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
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3
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Makshakova ON, Bogdanova LR, Faizullin DA, Ermakova EA, Zuev YF. Sulfated Polysaccharides as a Fighter with Protein Non-Physiological Aggregation: The Role of Polysaccharide Flexibility and Charge Density. Int J Mol Sci 2023; 24:16223. [PMID: 38003413 PMCID: PMC10671430 DOI: 10.3390/ijms242216223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 11/09/2023] [Accepted: 11/10/2023] [Indexed: 11/26/2023] Open
Abstract
Proteins can lose native functionality due to non-physiological aggregation. In this work, we have shown the power of sulfated polysaccharides as a natural assistant to restore damaged protein structures. Protein aggregates enriched by cross-β structures are a characteristic of amyloid fibrils related to different health disorders. Our recent studies demonstrated that model fibrils of hen egg white lysozyme (HEWL) can be disaggregated and renatured by some negatively charged polysaccharides. In the current work, using the same model protein system and FTIR spectroscopy, we studied the role of conformation and charge distribution along the polysaccharide chain in the protein secondary structure conversion. The effects of three carrageenans (κ, ι, and λ) possessing from one to three sulfate groups per disaccharide unit were shown to be different. κ-Carrageenan was able to fully eliminate cross-β structures and complete the renaturation process. ι-Carrageenan only initiated the formation of native-like β-structures in HEWL, retaining most of the cross-β structures. In contrast, λ-carrageenan even increased the content of amyloid cross-β structures. Furthermore, κ-carrageenan in rigid helical conformation loses its capability to restore protein native structures, largely increasing the amount of amyloid cross-β structures. Our findings create a platform for the design of novel natural chaperons to counteract protein unfolding.
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Affiliation(s)
- Olga N. Makshakova
- Kazan Institute of Biochemistry and Biophysics, FRC Kazan Scientific Center of RAS, 2/31 Lobachevsky Street, 420111 Kazan, Russia
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Xie W, He S, Fang S, Yin B, Tian R, Wang Y, Wang D. Analysis of starch dissolved in ionic liquid by glass nanopore at single molecular level. Int J Biol Macromol 2023; 239:124271. [PMID: 37019197 DOI: 10.1016/j.ijbiomac.2023.124271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 03/06/2023] [Accepted: 03/27/2023] [Indexed: 04/05/2023]
Abstract
In this paper, the glass nanopore technology was proposed to detect a single molecule of starch dissolved in ionic liquid [1-butyl-3-methylimidazolium chloride (BmimCl)]. Firstly, the influence of BmimCl on nanopore detection is discussed. It is found that a certain amount of strong polar ionic liquids will disturb the charge distribution in nanopores and increase the detection noise. Then, by analysis of the characteristic current signal of the conical nanopore, the motion behaviour of starch near the entrance of the nanopore was studied and analysis the dominant ion of starch in the BmimCl dissolution process. Finally, based on nuclear magnetic resonance (NMR) and Fourier transform infrared (FTIR) spectroscopy simply discussed the mechanism of amylose and amylopectin dissolved in BmimCl. These results confirm that branched chain structure would affect the dissolution of polysaccharides in ionic liquids and the contribution of anions to the dissolution of polysaccharides are dominant. It is further proved that the current signal can be used to judge the charge and structure information of the analyte, and the dissolution mechanism can be assist analyzed at the single molecule level.
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5
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Wang Y, Zhao Y, He J, Sun C, Lu W, Zhang Y, Fang Y. Doubling growth of egg-box structure during Calcium-mediated molecular assembly of alginate. J Colloid Interface Sci 2023; 634:747-756. [PMID: 36563431 DOI: 10.1016/j.jcis.2022.12.096] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 11/30/2022] [Accepted: 12/18/2022] [Indexed: 12/24/2022]
Abstract
Ca2+-mediated molecular assembly of alginate underpins its wide range of applications in foods, pharmaceutics, biomedicines, tissue engineering and environmental treatments. The mode of growth of egg-box structure of alginate in the presence of Ca2+ is a long-standing fundamental problem to be concluded. In this work, we investigate the Ca-induced structural evolution of alginate in dilute solution using atomic force microscopy and dilute solution viscometry. It is demonstrated that the structural evolution follows the three critical steps of monocomplexation, dimerization and multimerization, upon binding with Ca2+. Interestingly, the alginate single chains grow into dimers and multimers via a doubling mode, i.e., successive emerging of dimer, tetramer, octamer, and hexadecamer. Compared with lower guluronate (G) alginate, higher G alginate exhibits a more pronounced multimerization process occurring at a lower ratio of Ca/G. A mechanistic model depicting the evolution of egg-box structure is proposed. The results would add new knowledge to the current egg-box model regarding the molecular assembly and gelation of an important biopolymer alginate, and provide fundamental basis for molecular engineering of alginate for more advanced applications.
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Affiliation(s)
- Yi Wang
- School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Yiguo Zhao
- School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Jun He
- School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Cuixia Sun
- School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Wei Lu
- School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Yin Zhang
- Key Laboratory of Meat Processing of Sichuan, Chengdu University, Chengdu 610106, China
| | - Yapeng Fang
- School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China.
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6
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Tavagnacco L, Chiessi E, Severini L, Franco S, Buratti E, Capocefalo A, Brasili F, Mosca Conte A, Missori M, Angelini R, Sennato S, Mazzuca C, Zaccarelli E. Molecular origin of the two-step mechanism of gellan aggregation. SCIENCE ADVANCES 2023; 9:eadg4392. [PMID: 36897940 PMCID: PMC10005172 DOI: 10.1126/sciadv.adg4392] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Accepted: 02/02/2023] [Indexed: 05/31/2023]
Abstract
Among hydrocolloids, gellan is one of the most studied polysaccharides due to its ability to form mechanically stable gels. Despite its long-standing use, the gellan aggregation mechanism is still not understood because of the lack of atomistic information. Here, we fill this gap by developing a new gellan force field. Our simulations offer the first microscopic overview of gellan aggregation, detecting the coil to single-helix transition at dilute conditions and the formation of higher-order aggregates at high concentration through a two-step process: first, the formation of double helices and then their assembly into superstructures. For both steps, we also assess the role of monovalent and divalent cations, complementing simulations with rheology and atomic force microscopy experiments and highlighting the leading role of divalent cations. These results pave the way for future use of gellan-based systems in a variety of applications, from food science to art restoration.
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Affiliation(s)
- Letizia Tavagnacco
- CNR-ISC and Department of Physics, Sapienza University of Rome, Piazzale A. Moro 2, 00185 Rome, Italy
| | - Ester Chiessi
- Department of Chemical Science and Technologies, University of Rome Tor Vergata, Via della Ricerca Scientifica I, 00133 Rome, Italy
| | - Leonardo Severini
- Department of Chemical Science and Technologies, University of Rome Tor Vergata, Via della Ricerca Scientifica I, 00133 Rome, Italy
| | - Silvia Franco
- CNR-ISC and Department of Physics, Sapienza University of Rome, Piazzale A. Moro 2, 00185 Rome, Italy
| | - Elena Buratti
- CNR-ISC and Department of Physics, Sapienza University of Rome, Piazzale A. Moro 2, 00185 Rome, Italy
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via L. Borsari 46, 44121 Ferrara, Italy
| | - Angela Capocefalo
- CNR-ISC and Department of Physics, Sapienza University of Rome, Piazzale A. Moro 2, 00185 Rome, Italy
| | - Francesco Brasili
- CNR-ISC and Department of Physics, Sapienza University of Rome, Piazzale A. Moro 2, 00185 Rome, Italy
| | - Adriano Mosca Conte
- CNR-ISC and Department of Physics, Sapienza University of Rome, Piazzale A. Moro 2, 00185 Rome, Italy
| | - Mauro Missori
- CNR-ISC and Department of Physics, Sapienza University of Rome, Piazzale A. Moro 2, 00185 Rome, Italy
| | - Roberta Angelini
- CNR-ISC and Department of Physics, Sapienza University of Rome, Piazzale A. Moro 2, 00185 Rome, Italy
| | - Simona Sennato
- CNR-ISC and Department of Physics, Sapienza University of Rome, Piazzale A. Moro 2, 00185 Rome, Italy
| | - Claudia Mazzuca
- Department of Chemical Science and Technologies, University of Rome Tor Vergata, Via della Ricerca Scientifica I, 00133 Rome, Italy
| | - Emanuela Zaccarelli
- CNR-ISC and Department of Physics, Sapienza University of Rome, Piazzale A. Moro 2, 00185 Rome, Italy
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7
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Westberry BP, Mansel BW, Ryan TM, Lundin L, Williams M. X-ray scattering and molecular dynamics simulations reveal the secondary structure of κ-carrageenan in the solution state. Carbohydr Polym 2022; 296:119958. [DOI: 10.1016/j.carbpol.2022.119958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 07/31/2022] [Accepted: 08/02/2022] [Indexed: 11/02/2022]
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8
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Fjodorova J, Held R, Hublik G, Esteban Vazquez JM, Walhorn V, Hellweg T, Anselmetti D. Tuning Xanthan Viscosity by Directed Random Coil-to-Helix Transition. Biomacromolecules 2022; 23:4493-4503. [DOI: 10.1021/acs.biomac.2c00494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jenny Fjodorova
- Experimental Biophysics, Physics Faculty, Bielefeld University, 33615Bielefeld, Germany
| | - Robin Held
- Experimental Biophysics, Physics Faculty, Bielefeld University, 33615Bielefeld, Germany
| | - Gerd Hublik
- Jungbunzlauer Austria AG, Pernhofen 1, 2064Wulzeshofen, Austria
| | - Jorge M. Esteban Vazquez
- Physical and Biophysical Chemistry, Chemistry Faculty, Bielefeld University, 33615Bielefeld, Germany
| | - Volker Walhorn
- Experimental Biophysics, Physics Faculty, Bielefeld University, 33615Bielefeld, Germany
| | - Thomas Hellweg
- Physical and Biophysical Chemistry, Chemistry Faculty, Bielefeld University, 33615Bielefeld, Germany
| | - Dario Anselmetti
- Experimental Biophysics, Physics Faculty, Bielefeld University, 33615Bielefeld, Germany
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9
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Chitosan: A Promising Multifunctional Cosmetic Ingredient for Skin and Hair Care. COSMETICS 2022. [DOI: 10.3390/cosmetics9050099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The cosmetic industry has an undeniable need to design and develop new ecosustainable products to respond to the demands of consumers and international regulations. This requires substituting some traditional ingredients derived from petrochemical sources with new ones with more ecofriendly profiles. However, this transition towards the use of green ingredients in the cosmetic industry cannot compromise the effectiveness of the obtained products. Emerging ingredients in this new direction of the cosmetic industry are chitosan and its derivatives, which combine many interesting physicochemical and biological properties for the fabrication of cosmetic products. Thus, the use of chitosan opens a promising future path to the design of cosmetic formulations. In particular, chitosan’s ability for interacting electrostatically with negatively charged substrates (e.g., skin or damaged hair), resulting in the formation of polymeric films which contribute to the conditioning and moisturizing of cosmetic substrates, makes this polymer an excellent candidate for the design of skin and hair care formulations. This review tries to provide an updated perspective on the potential interest of chitosan and its derivatives as ingredients of cosmetics for skin and hair care.
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Wang B, Yan L, Guo S, Wen L, Yu M, Feng L, Jia X. Structural Elucidation, Modification, and Structure-Activity Relationship of Polysaccharides in Chinese Herbs: A Review. Front Nutr 2022; 9:908175. [PMID: 35669078 PMCID: PMC9163837 DOI: 10.3389/fnut.2022.908175] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 04/22/2022] [Indexed: 01/10/2023] Open
Abstract
Chinese herbal polysaccharides (CHPs) are natural polymers composed of monosaccharides, which are widely found in Chinese herbs and work as one of the important active ingredients. Its biological activity is attributed to its complex chemical structure with diverse spatial conformations. However, the structural elucidation is the foundation but a bottleneck problem because the majority of CHPs are heteropolysaccharides with more complex structures. Similarly, the studies on the relationship between structure and function of CHPs are even more scarce. Therefore, this review summarizes the structure-activity relationship of CHPs. Meanwhile, we reviewed the structural elucidation strategies and some new progress especially in the advanced structural analysis methods. The characteristics and applicable scopes of various methods are compared to provide reference for selecting the most efficient method and developing new hyphenated techniques. Additionally, the principle structural modification methods of CHPs and their effects on activity are summarized. The shortcomings, potential breakthroughs, and developing directions of the study of CHPs are discussed. We hope to provide a reference for further research and promote the application of CHPs.
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11
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Makshakova ON, Zuev YF. Interaction-Induced Structural Transformations in Polysaccharide and Protein-Polysaccharide Gels as Functional Basis for Novel Soft-Matter: A Case of Carrageenans. Gels 2022; 8:287. [PMID: 35621585 PMCID: PMC9141914 DOI: 10.3390/gels8050287] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 05/02/2022] [Accepted: 05/03/2022] [Indexed: 01/01/2023] Open
Abstract
Biocompatible, nontoxic, and biodegradable polysaccharides are considered as a promising base for bio-inspired materials, applicable as scaffolds in regenerative medicine, coatings in drug delivery systems, etc. The tunable macroscopic properties of gels should meet case-dependent requirements. The admixture of proteins to polysaccharides and their coupling in more sophisticated structures opens an avenue for gel property tuning via physical cross-linking of components and the modification of gel network structure. In this review recent success in the conformational studies of binary protein-polysaccharide gels is summarized with the main focus upon carrageenans. Future perspectives and challenges in rational design of novel polysaccharide-based materials are outlined.
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Affiliation(s)
- Olga N. Makshakova
- Kazan Institute of Biochemistry and Biophysics, FRC Kazan Scientific Center of RAS, Lobachevsky Str., 2/31, 420111 Kazan, Russia;
- A. Butlerov Chemical Institute, Kazan Federal University, Kremlevskaya 18, 420008 Kazan, Russia
| | - Yuriy F. Zuev
- Kazan Institute of Biochemistry and Biophysics, FRC Kazan Scientific Center of RAS, Lobachevsky Str., 2/31, 420111 Kazan, Russia;
- A. Butlerov Chemical Institute, Kazan Federal University, Kremlevskaya 18, 420008 Kazan, Russia
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12
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Lu W, Hu Z, Zhou X, Qin Y, Zhang Y, Fang Y. Natural biopolymer masks the bitterness of potassium chloride to achieve a highly efficient salt reduction for future foods. Biomaterials 2022; 283:121456. [DOI: 10.1016/j.biomaterials.2022.121456] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 02/16/2022] [Accepted: 03/03/2022] [Indexed: 02/02/2023]
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13
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Cai Z, Zhang H. The effect of carboxymethylation on the macromolecular conformation of the (1 → 3)-β -D-glucan of curdlan in water. Carbohydr Polym 2021; 272:118456. [PMID: 34420716 DOI: 10.1016/j.carbpol.2021.118456] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 07/14/2021] [Accepted: 07/15/2021] [Indexed: 11/28/2022]
Abstract
The chain conformational change in curdlan during carboxymethylation was investigated using nuclear magnetic resonance (NMR), circular dichroism (CD) spectroscopy, and atomic force microscopy (AFM). The distributions of carboxymethyl substituents within anhydroglucose unit (AGU) of CMCD were found to follow the order of OH (6) > OH (4) > OH (2) for CMCD with a low DS and OH (6) > OH (2) > OH (4) for CMCD with relatively high DS. The increased carboxymethylation level induced the chain conformation transition of curdlan from triple helix to random coil in water. The DS of 0.25 was the critical value of chain conformation transition, below which CMCD chains were triple helices. For DS larger than 0.25, CMCD existed in the state of random coils. The intermolecular hydrogen bonding between C2 hydroxyls in AGU sustained the triple helical conformation and stiffness of the polymer chain, which weakened with the increase in DS.
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Affiliation(s)
- Zhixiang Cai
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Hongbin Zhang
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University, Shanghai 200240, China.
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14
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Rhein-Knudsen N, Meyer AS. Chemistry, gelation, and enzymatic modification of seaweed food hydrocolloids. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.01.052] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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15
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Zeng H. Self-assembling Properties. Food Hydrocoll 2021. [DOI: 10.1007/978-981-16-0320-4_9] [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]
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16
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Zhang H, Li R. Solution Properties. Food Hydrocoll 2021. [DOI: 10.1007/978-981-16-0320-4_2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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17
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Zhu Y, Tyrikos-Ergas T, Schiefelbein K, Grafmüller A, Seeberger PH, Delbianco M. Automated access to well-defined ionic oligosaccharides. Org Biomol Chem 2020; 18:1349-1353. [PMID: 32037424 DOI: 10.1039/d0ob00137f] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Ionic polysaccharides are part of many biological events, but lack structural characterisation due to challenging purifications and complex synthesis. Four monosaccharides bearing modifications not found in nature are used for the automated synthesis of a collection of ionic oligosaccharides. Structural analysis reveals how the charge pattern affects glycan conformation.
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Affiliation(s)
- Yuntao Zhu
- Department of Biomolecular Systems, Max-Planck-Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany.
| | - Theodore Tyrikos-Ergas
- Department of Biomolecular Systems, Max-Planck-Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany. and Department of Chemistry and Biochemistry, Freie Universität Berlin, Arnimallee 22, 14195 Berlin, Germany
| | - Kevin Schiefelbein
- Department of Biomolecular Systems, Max-Planck-Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany.
| | - Andrea Grafmüller
- Department of Theory, Max-Planck-Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Peter H Seeberger
- Department of Biomolecular Systems, Max-Planck-Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany. and Department of Chemistry and Biochemistry, Freie Universität Berlin, Arnimallee 22, 14195 Berlin, Germany
| | - Martina Delbianco
- Department of Biomolecular Systems, Max-Planck-Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany.
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18
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Diener M, Adamcik J, Mezzenga R. Formation of Higher Structural Levels in λ-Carrageenan Induced by the Antimalarial Drug Chloroquine. ACS Macro Lett 2020; 9:1310-1317. [PMID: 35638640 DOI: 10.1021/acsmacrolett.0c00501] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The linear polysaccharide λ-carrageenan is the only one among the carrageenans not forming secondary, tertiary, and quaternary structures in the presence of inorganic ions. Chloroquine (CQ) is a well-established antimalaria drug also recently discussed in therapeutics against the COVID-19 pandemic. The interaction of this polysaccharide-ionic drug pair was investigated by combining UV-vis spectrophotometry and atomic force microscopy (AFM) imaging. A decrease of the UV peak assigned to free CQ and the occurrence of isosbestic points indicate the formation of complexes. High-resolution AFM height images revealed an increasing height of the single polysaccharide chains in the random coil state upon addition of CQ, indicating the formation of a secondary structure, followed by higher hierarchical aggregates. The disappearance of higher-ordered structures and the recovery of polysaccharide chains with primary structure were observed by introducing inorganic cations (Na+, K+, Ca2+), replacing the condensed CQ and paving the way to reversible ion-induced drug release.
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Affiliation(s)
- Michael Diener
- Department of Health Sciences and Technology, Swiss Federal Institute of Technology Zurich, 8092 Zurich, Switzerland
| | - Jozef Adamcik
- Department of Health Sciences and Technology, Swiss Federal Institute of Technology Zurich, 8092 Zurich, Switzerland
| | - Raffaele Mezzenga
- Department of Health Sciences and Technology, Swiss Federal Institute of Technology Zurich, 8092 Zurich, Switzerland.,Department of Materials, Swiss Federal Institute of Technology Zurich, 8092 Zurich, Switzerland
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Dong M, Zhang K, Wang L, Han J, Wang Y, Xue Z, Xia Y. High-strength carrageenan fibers with compactly packed chain structure induced by combination of Ba 2+ and ethanol. Carbohydr Polym 2020; 236:116057. [PMID: 32172872 DOI: 10.1016/j.carbpol.2020.116057] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Revised: 02/20/2020] [Accepted: 02/20/2020] [Indexed: 12/28/2022]
Abstract
Carrageenan fibers have attractive applications in textile, but their low strength remains a problem that needs to be urgently addressed. In this work, a novel facile, environmental friendly method for fabricate high-strength carrageenan fibers is proposed. It involves the crosslinking of a small amount of Ba2+ ions in the carrageenan solution, followed by using recyclable alcohol in coagulation and stretching baths. Carrageenan molecular chains were allowed to first sufficiently interact with metal barium ions, and then were stretched and dehydrated with alcohol to increase the hydrogen bonding interaction between the molecular chains. As a result, the carrageenan fibers with high-strength ionic and hydrogen bonds were obtained. The fibers obtained by the novel method had high tensile strength at 1.63 cN/dtex, which is two times higher than that of those obtained by the traditional process.
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Affiliation(s)
- Min Dong
- State Key Laboratory of Bio-fibers and Eco-textiles, Collaborative Innovation Center of Marine Biobased Fibers and Ecological Textiles, College of Chemistry and Chemical Engineering, Institute of Marine Biobased Materials, Qingdao University, Qingdao, 266071, China
| | - Kewei Zhang
- State Key Laboratory of Bio-fibers and Eco-textiles, Collaborative Innovation Center of Marine Biobased Fibers and Ecological Textiles, College of Chemistry and Chemical Engineering, Institute of Marine Biobased Materials, Qingdao University, Qingdao, 266071, China
| | - Lili Wang
- State Key Laboratory of Bio-fibers and Eco-textiles, Collaborative Innovation Center of Marine Biobased Fibers and Ecological Textiles, College of Chemistry and Chemical Engineering, Institute of Marine Biobased Materials, Qingdao University, Qingdao, 266071, China
| | - Jie Han
- State Key Laboratory of Bio-fibers and Eco-textiles, Collaborative Innovation Center of Marine Biobased Fibers and Ecological Textiles, College of Chemistry and Chemical Engineering, Institute of Marine Biobased Materials, Qingdao University, Qingdao, 266071, China
| | - Yingxia Wang
- Public Technology Service Center, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China
| | - Zhixin Xue
- State Key Laboratory of Bio-fibers and Eco-textiles, Collaborative Innovation Center of Marine Biobased Fibers and Ecological Textiles, College of Chemistry and Chemical Engineering, Institute of Marine Biobased Materials, Qingdao University, Qingdao, 266071, China.
| | - Yanzhi Xia
- State Key Laboratory of Bio-fibers and Eco-textiles, Collaborative Innovation Center of Marine Biobased Fibers and Ecological Textiles, College of Chemistry and Chemical Engineering, Institute of Marine Biobased Materials, Qingdao University, Qingdao, 266071, China
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20
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Cao Y, Mezzenga R. Design principles of food gels. ACTA ACUST UNITED AC 2020; 1:106-118. [PMID: 37127997 DOI: 10.1038/s43016-019-0009-x] [Citation(s) in RCA: 199] [Impact Index Per Article: 49.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Accepted: 11/13/2019] [Indexed: 12/19/2022]
Abstract
Naturally sourced gels from food biopolymers have advanced in recent decades to compare favourably in performance and breadth of application to their synthetic counterparts. Here, we comprehensively review the constitutive nature, gelling mechanisms, design approaches, and structural and mechanical properties of food gels. We then consider how these food gel design principles alter rheological and tribological properties for food quality improvement, nutrient-modification of foods while preserving sensory perception, and targeted delivery of drugs and bioactives within the gastrointestinal tract. We propose that food gels may offer advantages over their synthetic counterparts owing to their source renewability, low cost, biocompatibility and biodegradability. We also identify emerging approaches and trends that may improve and expand the current scope, properties and functionalities of food gels and inspire new applications.
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21
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Meng Y, Lyu F, Xu X, Zhang L. Recent Advances in Chain Conformation and Bioactivities of Triple-Helix Polysaccharides. Biomacromolecules 2020; 21:1653-1677. [PMID: 31986015 DOI: 10.1021/acs.biomac.9b01644] [Citation(s) in RCA: 130] [Impact Index Per Article: 32.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Natural polysaccharides derived from renewable biomass sources are regarded as environmentally friendly and sustainable polymers. As the third most abundant biomacromolecule in nature, after proteins and nucleic acids, polysaccharides are also closely related with many different life activities. In particular, β-glucans are one of the most widely reported bioactive polysaccharides and are usually considered as biological response modifiers. Among them, β-glucans with triple-helix conformation have been the hottest and most well-researched polysaccharides at present, especially lentinan and schizophyllan, which are clinically used as cancer therapies in some Asian countries. Thus, creation of these active triple-helix polysaccharides is beneficial to the research and development of sustainable "green" biopolymers in the fields of food and life sciences. Therefore, full fundamental research of triple-helix polysaccharides is essential to discover more applications for polysaccharides. In this Review, the recent research progress of chain conformations, bioactivities, and structure-function relationships of triple-helix β-glucans is summarized. The main contents include the characterization methods of the macromolecular conformation, proof of triple helices, bioactivities, and structure-function relationships. We believe that the governments, enterprises, universities, and institutes dealing with the survival and health of human beings can expect the development of natural bioproducts in the future. Hence, a deep understanding of β-glucans with triple-helix chain conformation is necessary for application of natural medicines and biologics for a sustainable world.
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Affiliation(s)
- Yan Meng
- College of Chemistry & Molecule Sciences, Wuhan University, Wuhan 430072, China.,College of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430065, China
| | - Fengzhi Lyu
- College of Chemistry & Molecule Sciences, Wuhan University, Wuhan 430072, China
| | - Xiaojuan Xu
- College of Chemistry & Molecule Sciences, Wuhan University, Wuhan 430072, China
| | - Lina Zhang
- College of Chemistry & Molecule Sciences, Wuhan University, Wuhan 430072, China
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22
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Diener M, Adamcik J, Bergfreund J, Catalini S, Fischer P, Mezzenga R. Rigid, Fibrillar Quaternary Structures Induced by Divalent Ions in a Carboxylated Linear Polysaccharide. ACS Macro Lett 2020; 9:115-121. [PMID: 35638668 DOI: 10.1021/acsmacrolett.9b00824] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Polysaccharides are ubiquitous in nature; they serve fundamental roles in vivo and are used for a multitude of food, pharmaceutical, cosmetic biomaterials, and biomedical applications. Here, the structure-property function for low acetylated Gellan gum hydrogels induced by divalent ions was established by means of optical, rheological, and microscopic techniques. The hydrogels interacted with visible light as revealed by birefringence and multiple scattering, as a consequence of quaternary, supramolecular fibrillar structures. The molecular assembly and structure were elucidated by statistical analysis and polymer physics concepts applied to high-resolution AFM height images and further supported by FTIR. This revealed intramolecular coil-to-single helix transitions, followed by lateral aggregation of single helices into rigid, fibrillar quaternary structures, ultimately responsible for gelation of the system. Calcium and magnesium chloride were shown to lead to fibrils up to heights of 6.0 nm and persistence lengths of several micrometers. The change in molecular structure affected the macroscopic gel stiffness, with the plateau shear modulus reaching ∼105 Pa. These results shed light on the two-step gelation mechanism of linear polysaccharides, their conformational molecular changes at the single polymer level and ultimately the macroscale properties of the ensued gels.
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Affiliation(s)
- Michael Diener
- Department of Health Sciences and Technology, ETH Zürich, 8092 Zürich, Switzerland
| | - Jozef Adamcik
- Department of Health Sciences and Technology, ETH Zürich, 8092 Zürich, Switzerland
| | - Jotam Bergfreund
- Department of Health Sciences and Technology, ETH Zürich, 8092 Zürich, Switzerland
| | - Sara Catalini
- Department of Health Sciences and Technology, ETH Zürich, 8092 Zürich, Switzerland
- European Laboratory for Non-Linear Spectroscopy (LENS), Università di Firenze, 50121 Florence, Italy
| | - Peter Fischer
- Department of Health Sciences and Technology, ETH Zürich, 8092 Zürich, Switzerland
| | - Raffaele Mezzenga
- Department of Health Sciences and Technology, ETH Zürich, 8092 Zürich, Switzerland
- Department of Materials, ETH Zürich, 8093 Zürich, Switzerland
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23
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Raffaele Mezzenga. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201907630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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24
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Raffaele Mezzenga. Angew Chem Int Ed Engl 2019; 58:18742. [DOI: 10.1002/anie.201907630] [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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25
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Tyrikos-Ergas T, Fittolani G, Seeberger PH, Delbianco M. Structural Studies Using Unnatural Oligosaccharides: Toward Sugar Foldamers. Biomacromolecules 2019; 21:18-29. [DOI: 10.1021/acs.biomac.9b01090] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Theodore Tyrikos-Ergas
- Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
- Department of Chemistry and Biochemistry, Freie Universität Berlin, Arnimallee 22, 14195 Berlin, Germany
| | - Giulio Fittolani
- Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
- Department of Chemistry and Biochemistry, Freie Universität Berlin, Arnimallee 22, 14195 Berlin, Germany
| | - Peter H. Seeberger
- Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
- Department of Chemistry and Biochemistry, Freie Universität Berlin, Arnimallee 22, 14195 Berlin, Germany
| | - Martina Delbianco
- Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
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26
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Soares SF, Rocha MJ, Ferro M, Amorim CO, Amaral JS, Trindade T, Daniel-da-Silva AL. Magnetic nanosorbents with siliceous hybrid shells of alginic acid and carrageenan for removal of ciprofloxacin. Int J Biol Macromol 2019; 139:827-841. [PMID: 31394147 DOI: 10.1016/j.ijbiomac.2019.08.030] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Revised: 07/30/2019] [Accepted: 08/05/2019] [Indexed: 12/12/2022]
Abstract
Water contamination with antibiotics is a serious environmental threat. Ciprofloxacin (CIP) is one of the most frequently detected antibiotics in water. Herein, silica-based magnetic nanosorbents prepared using three seaweed polysaccharides, alginic acid, κ- and λ-carrageenan, were developed and evaluated in the uptake of ciprofloxacin. The sorbents were firstly characterized in detail to assess their morphology and composition. A systematic investigation was conducted to study the adsorption performance towards CIP, by varying the initial pH, contact time and initial CIP concentration. The maximum adsorption capacity was 464, 423 and 1350 mg/g for particles prepared from alginic acid, κ- and λ-carrageenan respectively. These high values indicate that these materials are among the most effective sorbents reported so far for the removal of CIP from water. The kinetic data were consistent with the pseudo-second-order model. The CIP adsorption on λ-carrageenan particles followed a cooperative process with sigmoidal isotherm that was described by the Dubinin-Radushkevich model. The high charge density of λ-carrageenan and the propensity of CIP molecules to self-aggregate may explain the cooperative nature of CIP adsorption. The sorbents were easily regenerated in mild conditions and could be reused in CIP removal up to 4 times without a significant loss of adsorptive properties.
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Affiliation(s)
- Sofia F Soares
- CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Maria João Rocha
- CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Marta Ferro
- CICECO - Aveiro Institute of Materials, Department of Materials and Ceramic Engineering, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Carlos O Amorim
- CICECO-Aveiro Institute of Materials, Department of Physics, University of Aveiro, Aveiro, 3810-193, Portugal
| | - João S Amaral
- CICECO-Aveiro Institute of Materials, Department of Physics, University of Aveiro, Aveiro, 3810-193, Portugal
| | - Tito Trindade
- CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Ana L Daniel-da-Silva
- CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
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27
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Li J, Pylypchuk I, Johansson DP, Kessler VG, Seisenbaeva GA, Langton M. Self-assembly of plant protein fibrils interacting with superparamagnetic iron oxide nanoparticles. Sci Rep 2019; 9:8939. [PMID: 31222107 PMCID: PMC6586877 DOI: 10.1038/s41598-019-45437-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Accepted: 06/05/2019] [Indexed: 11/09/2022] Open
Abstract
In situ fibrillation of plant proteins in presence of the superparamagnetic iron oxide nanoparticles (NP) promoted formation of a hybrid nanocomposite. The morphology of NP-fibril composite was revealed using ex-situ atomic force microscopy (AFM) in air. The NP-fibrils were associated into extended multi-fibril structures, indicating that the addition of NPs promoted protein association via β-sheet assembly. Real-time movement of NPs attached to fibrils under an external magnetic field was visualized using in-situ AFM in liquid, revealing that composite structures were stable at low pH, and displaying dipolar property of the NPs in the composite at high pH. Changes in magnetic properties of NPs when interacting with protein fibrils were quantitatively mapped using magnetic force microscopy (MFM). The magnetic moment of the NPs in composite was increased by co-existing with protein at low pH, while their dipolar nature was maintained at high pH. Self-assembly of the protein into fibrils is accelerated with increasing NP concentration within an optimal range, which is attributed to a fibrillation-competent conformation of the peptides. The latter was explained by the formation of favorable hydrogen bonds, electrostatic interactions, and efficient surface energy transfer between NPs and proteins.
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Affiliation(s)
- Jing Li
- The Department of Molecular Sciences, SLU - Swedish University of Agricultural Sciences, Box 7015, SE-750 07, Uppsala, Sweden.
| | - Ievgen Pylypchuk
- The Department of Molecular Sciences, SLU - Swedish University of Agricultural Sciences, Box 7015, SE-750 07, Uppsala, Sweden
| | - Daniel P Johansson
- The Department of Molecular Sciences, SLU - Swedish University of Agricultural Sciences, Box 7015, SE-750 07, Uppsala, Sweden
| | - Vadim G Kessler
- The Department of Molecular Sciences, SLU - Swedish University of Agricultural Sciences, Box 7015, SE-750 07, Uppsala, Sweden
| | - Gulaim A Seisenbaeva
- The Department of Molecular Sciences, SLU - Swedish University of Agricultural Sciences, Box 7015, SE-750 07, Uppsala, Sweden.
| | - Maud Langton
- The Department of Molecular Sciences, SLU - Swedish University of Agricultural Sciences, Box 7015, SE-750 07, Uppsala, Sweden.
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28
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Affiliation(s)
- Giulio Fittolani
- Department of Biomolecular SystemsMax Planck Institute of Colloids and Interfaces Potsdam Germany
| | - Peter H. Seeberger
- Department of Biomolecular SystemsMax Planck Institute of Colloids and Interfaces Potsdam Germany
- Institute of Chemistry and BiochemistryFreie Universität Berlin Berlin Germany
| | - Martina Delbianco
- Department of Biomolecular SystemsMax Planck Institute of Colloids and Interfaces Potsdam Germany
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29
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30
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Diener M, Adamcik J, Sánchez-Ferrer A, Jaedig F, Schefer L, Mezzenga R. Primary, Secondary, Tertiary and Quaternary Structure Levels in Linear Polysaccharides: From Random Coil, to Single Helix to Supramolecular Assembly. Biomacromolecules 2019; 20:1731-1739. [PMID: 30816699 DOI: 10.1021/acs.biomac.9b00087] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Polysaccharides are ubiquitous in nature and represent an essential class of biopolymers with multiple levels of conformation and structural hierarchy. However, a standardized structural nomenclature, as in the case of proteins, is still lacking due to uncertainty on their hierarchical organization. In this work we use carrageenans as model polysaccharides to demonstrate that several structural levels exist and can be unambiguously resolved by statistical analysis on high resolution Atomic Force Microscopy images, supported by spectroscopic, X-ray scattering and rheological techniques. In direct analogy with proteins, we identify primary, secondary, tertiary and quaternary structures. The structure-property relationship induced by monovalent ions for κ-, ι- and the non-gelling control λ-carrageenan is established from the single chain regime to the occurrence of hydrogels at higher concentrations. For κ-carrageenan in the presence of potassium, a disorder-order transition from random coil to single helix is first observed (secondary structure), followed by intrachain supercoiling events (tertiary structure) and macroscopic anisotropic domains which are parts of a network (quaternary structure) with tunable elasticity up to ∼103 Pa. In contrast, κ-carrageenan in the presence of sodium only produces changes in secondary structure without supercoiling events, prior to formation of gels, highlighting the ion-specificity of the process. Loosely intertwined single helices are observed for ι-carrageenan in the presence of sodium and potassium chloride, providing an elastic mesh with many junction zones, while λ-carrageenan does not undergo any structural change. A generality of the observed behavior may be inferred by extending these observations to a distinct class of polysaccharides, the weak carboxylic polyelectrolyte Gellan gum. These results advance our understanding of ion-specific structural changes of polysaccharides and the physical mechanisms responsible for their gelation.
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Affiliation(s)
- Michael Diener
- Department of Health Sciences and Technology , ETH Zürich , 8092 Zürich , Switzerland
| | - Jozef Adamcik
- Department of Health Sciences and Technology , ETH Zürich , 8092 Zürich , Switzerland
| | - Antoni Sánchez-Ferrer
- Department of Health Sciences and Technology , ETH Zürich , 8092 Zürich , Switzerland
| | - Florian Jaedig
- Department of Health Sciences and Technology , ETH Zürich , 8092 Zürich , Switzerland
| | - Larissa Schefer
- Department of Health Sciences and Technology , ETH Zürich , 8092 Zürich , Switzerland
| | - Raffaele Mezzenga
- Department of Health Sciences and Technology , ETH Zürich , 8092 Zürich , Switzerland.,Department of Materials , ETH Zürich , 8093 Zürich , Switzerland
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31
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Brzyska A, Płaziński W, Woliński K. Force-induced structural changes in non-sulfated carrageenan based oligosaccharides - a theoretical study. SOFT MATTER 2018; 14:6264-6277. [PMID: 30004100 DOI: 10.1039/c8sm00319j] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In this work we use the Enforced Geometry Optimization (EGO) approach to simulate force-induced structural changes in the monomer, and di- up to pentameric oligomers of neutral and non-sulfated carrageenan based oligosaccharides. Our results indicate that the monosaccharide unit sequence in the oligomeric structure determines: (i) the type(s) of the enforced conformational transition(s), and (ii) the mechanical resistance to external forces. It is a direct consequence of the different glycosidic bonding types in the examined carregeenan based oligosaccharides.
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Affiliation(s)
- A Brzyska
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, 30-239 Krakow, Poland.
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32
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Dong M, Xue Z, Wang L, Xia Y. NaOH induced the complete dissolution of ι-carrageenan and the corresponding mechanism. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.07.078] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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33
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Structure and chain conformation of a neutral polysaccharide from sclerotia of Polyporus umbellatus. Carbohydr Polym 2017; 155:61-67. [DOI: 10.1016/j.carbpol.2016.08.041] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Accepted: 08/15/2016] [Indexed: 11/19/2022]
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Cao Y, Li S, Fang Y, Nishinari K, Phillips GO. Conformational Transition of Polyelectrolyte As Influenced by Electrostatic Complexation with Protein. Biomacromolecules 2016; 17:3949-3956. [DOI: 10.1021/acs.biomac.6b01335] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yiping Cao
- Glyn O. Phillips Hydrocolloid Research Centre, School of Food and
Biological Engineering and ‡Hubei Collaborative Innovation Centre for Industrial
Fermentation, Hubei University of Technology, Wuhan 430068, China
| | - Shugang Li
- Glyn O. Phillips Hydrocolloid Research Centre, School of Food and
Biological Engineering and ‡Hubei Collaborative Innovation Centre for Industrial
Fermentation, Hubei University of Technology, Wuhan 430068, China
| | - Yapeng Fang
- Glyn O. Phillips Hydrocolloid Research Centre, School of Food and
Biological Engineering and ‡Hubei Collaborative Innovation Centre for Industrial
Fermentation, Hubei University of Technology, Wuhan 430068, China
| | - Katsuyoshi Nishinari
- Glyn O. Phillips Hydrocolloid Research Centre, School of Food and
Biological Engineering and ‡Hubei Collaborative Innovation Centre for Industrial
Fermentation, Hubei University of Technology, Wuhan 430068, China
| | - Glyn O. Phillips
- Glyn O. Phillips Hydrocolloid Research Centre, School of Food and
Biological Engineering and ‡Hubei Collaborative Innovation Centre for Industrial
Fermentation, Hubei University of Technology, Wuhan 430068, China
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36
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Liu S, Li L. Recoverable and Self-Healing Double Network Hydrogel Based on κ-Carrageenan. ACS APPLIED MATERIALS & INTERFACES 2016; 8:29749-29758. [PMID: 27723297 DOI: 10.1021/acsami.6b11363] [Citation(s) in RCA: 98] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Combining an ionically cross-linked κ-carrageenan network with a covalently cross-linked polyacrylamide network, we have fabricated a κ-carrageenan/polyacrylamide double network (DN) hydrogel using a one-pot method. The resulting DN hydrogel exhibited a high elastic modulus of 280 kPa and a fracture energy of 6150 J/m2. A model has been proposed considering unzipping of double-helical aggregates and dissociation of double helices of κ-carrageenan, which could well interpret the continuous fracture process of the first κ-carrageenan network and the toughening mechanism of the physically and chemically cross-linked κ-carrageenan/polyacrylamide DN hydrogel. Owing to the thermoreversible nature of κ-carrageenan, the DN hydrogel also exhibited the excellent recoverable property. For example, the elastic modulus and energy dissipation could be recovered to 100% and 98% after the deformed and relaxed DN samples were stored at 90 °C for 20 min. Furthermore, the temperature-dependent sol-gel transition is also related to the self-healing property of the DN hydrogel.
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Affiliation(s)
- Sijun Liu
- School of Mechanical and Aerospace Engineering, Nanyang Technological University , 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Lin Li
- School of Mechanical and Aerospace Engineering, Nanyang Technological University , 50 Nanyang Avenue, Singapore 639798, Singapore
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37
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Liu S, Bao H, Li L. Thermoreversible gelation and scaling laws for graphene oxide-filled κ-carrageenan hydrogels. Eur Polym J 2016. [DOI: 10.1016/j.eurpolymj.2016.04.027] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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38
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Liu X, Huang Y, Chen Y, Cao Y. Partial structural characterization, as well as immunomodulatory and anti-aging activities of CP2-c2-s2 polysaccharide from Cordyceps militaris. RSC Adv 2016. [DOI: 10.1039/c6ra23612j] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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39
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Schefer L, Bulant A, Zeder C, Saha A, Mezzenga R. Magnetic Control of Macromolecular Conformations in Supramolecular Anionic Polysaccharide–Iron Complexes. Angew Chem Int Ed Engl 2015; 54:13289-92. [DOI: 10.1002/anie.201506898] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2015] [Indexed: 11/09/2022]
Affiliation(s)
- Larissa Schefer
- Department of Health Sciences & Technology, ETH Zürich, Schmelzbergstrasse 9, LFO E23, 8092 Zürich (Switzerland)
| | - Ariane Bulant
- Department of Health Sciences & Technology, ETH Zürich, Schmelzbergstrasse 9, LFO E23, 8092 Zürich (Switzerland)
| | - Christophe Zeder
- Department of Health Sciences & Technology, ETH Zürich, Schmelzbergstrasse 9, LFO E23, 8092 Zürich (Switzerland)
| | - Abhijit Saha
- Department of Health Sciences & Technology, ETH Zürich, Schmelzbergstrasse 9, LFO E23, 8092 Zürich (Switzerland)
| | - Raffaele Mezzenga
- Department of Health Sciences & Technology, ETH Zürich, Schmelzbergstrasse 9, LFO E23, 8092 Zürich (Switzerland)
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40
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Schefer L, Bulant A, Zeder C, Saha A, Mezzenga R. Magnetic Control of Macromolecular Conformations in Supramolecular Anionic Polysaccharide–Iron Complexes. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201506898] [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]
Affiliation(s)
- Larissa Schefer
- Department of Health Sciences & Technology, ETH Zürich, Schmelzbergstrasse 9, LFO E23, 8092 Zürich (Switzerland)
| | - Ariane Bulant
- Department of Health Sciences & Technology, ETH Zürich, Schmelzbergstrasse 9, LFO E23, 8092 Zürich (Switzerland)
| | - Christophe Zeder
- Department of Health Sciences & Technology, ETH Zürich, Schmelzbergstrasse 9, LFO E23, 8092 Zürich (Switzerland)
| | - Abhijit Saha
- Department of Health Sciences & Technology, ETH Zürich, Schmelzbergstrasse 9, LFO E23, 8092 Zürich (Switzerland)
| | - Raffaele Mezzenga
- Department of Health Sciences & Technology, ETH Zürich, Schmelzbergstrasse 9, LFO E23, 8092 Zürich (Switzerland)
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41
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Barker EC, Goh CY, Jones F, Mocerino M, Skelton BW, Becker T, Ogden MI. Investigating hydrogel formation using in situ variable-temperature scanning probe microscopy. Chem Sci 2015; 6:6133-6138. [PMID: 30090228 PMCID: PMC6054096 DOI: 10.1039/c5sc02196k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Accepted: 08/02/2015] [Indexed: 11/21/2022] Open
Abstract
The assembly and disassembly of fibres formed by a low molecular weight hydrogelator are imaged at high resolution.
The assembly and disassembly of supramolecular gel fibres are observed in situ using variable temperature scanning probe microscopy. The results show that fibre formation can be monitored at high resolution at a surface, and the final fibre morphologies are broadly consistent with those found by ex situ analysis of the bulk gel. The impact of a gelation inhibitor upon the fibre morphology is successfully investigated, providing direct evidence for the mechanism of inhibition as a function of additive concentration.
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Affiliation(s)
- Emily C Barker
- Department of Chemistry and Nanochemistry Research Institute , Curtin University , GPO Box U1987 , Perth , Western Australia 6845 , Australia . ;
| | - Ching Yong Goh
- Department of Chemistry and Nanochemistry Research Institute , Curtin University , GPO Box U1987 , Perth , Western Australia 6845 , Australia . ;
| | - Franca Jones
- Department of Chemistry and Nanochemistry Research Institute , Curtin University , GPO Box U1987 , Perth , Western Australia 6845 , Australia . ;
| | - Mauro Mocerino
- Department of Chemistry and Nanochemistry Research Institute , Curtin University , GPO Box U1987 , Perth , Western Australia 6845 , Australia . ;
| | - Brian W Skelton
- Centre for Microscopy , Characterisation and Analysis , M310 , University of Western Australia , Perth , Western Australia 6009 , Australia
| | - Thomas Becker
- Department of Chemistry and Nanochemistry Research Institute , Curtin University , GPO Box U1987 , Perth , Western Australia 6845 , Australia . ;
| | - Mark I Ogden
- Department of Chemistry and Nanochemistry Research Institute , Curtin University , GPO Box U1987 , Perth , Western Australia 6845 , Australia . ;
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42
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Schefer L, Adamcik J, Diener M, Mezzenga R. Supramolecular chiral self-assembly and supercoiling behavior of carrageenans at varying salt conditions. NANOSCALE 2015; 7:16182-8. [PMID: 26382663 DOI: 10.1039/c5nr04525h] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The self-assembly of anionic kappa and iota carrageenan polysaccharides in the presence of NaCl, KCl and CaCl2 is studied by high-resolution atomic force microscopy (AFM). A hierarchical supramolecular chirality amplification over various length scales is observed upon the addition of KCl, whereas in the presence of NaCl and CaCl2 the chains undergo solely a coil-helix transition with stiff kappa carrageenan and more flexible iota carrageenan helical conformations.
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Affiliation(s)
- Larissa Schefer
- Department of Health Sciences and Technology, ETH Zurich, Schmelzbergstrasse 9, 8092 Zurich, Switzerland.
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43
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Understanding nanocellulose chirality and structure-properties relationship at the single fibril level. Nat Commun 2015; 6:7564. [PMID: 26108282 PMCID: PMC4491835 DOI: 10.1038/ncomms8564] [Citation(s) in RCA: 228] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2014] [Accepted: 05/19/2015] [Indexed: 12/12/2022] Open
Abstract
Nanocellulose fibrils are ubiquitous in nature and nanotechnologies but their mesoscopic structural assembly is not yet fully understood. Here we study the structural features of rod-like cellulose nanoparticles on a single particle level, by applying statistical polymer physics concepts on electron and atomic force microscopy images, and we assess their physical properties via quantitative nanomechanical mapping. We show evidence of right-handed chirality, observed on both bundles and on single fibrils. Statistical analysis of contours from microscopy images shows a non-Gaussian kink angle distribution. This is inconsistent with a structure consisting of alternating amorphous and crystalline domains along the contour and supports process-induced kink formation. The intrinsic mechanical properties of nanocellulose are extracted from nanoindentation and persistence length method for transversal and longitudinal directions, respectively. The structural analysis is pushed to the level of single cellulose polymer chains, and their smallest associated unit with a proposed 2 × 2 chain-packing arrangement. Cellulose is a material found in many different biological systems, but the fine structure at the single-molecule level is still being assessed. Here, the authors present high-resolution imaging of cellulose structures at the single particle level, finding evidence of chirality in bundles and fibrils.
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44
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Saito N, Kanie K, Matsubara M, Muramatsu A, Yamaguchi M. Dynamic and Reversible Polymorphism of Self-Assembled Lyotropic Liquid Crystalline Systems Derived from Cyclic Bis(ethynylhelicene) Oligomers. J Am Chem Soc 2015; 137:6594-601. [DOI: 10.1021/jacs.5b02003] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Nozomi Saito
- Frontier
Research Institute for Interdisciplinary Sciences, Tohoku University , 6-3 Aoba, Sendai 980-8578, Japan
- Department
of Organic Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba, Sendai 980-8578, Japan
| | - Kiyoshi Kanie
- Institute
of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1,
Katahira, Aoba-ku, Sendai 980-8577, Japan
| | - Masaki Matsubara
- Institute
of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1,
Katahira, Aoba-ku, Sendai 980-8577, Japan
| | - Atsushi Muramatsu
- Institute
of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1,
Katahira, Aoba-ku, Sendai 980-8577, Japan
| | - Masahiko Yamaguchi
- Department
of Organic Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba, Sendai 980-8578, Japan
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45
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Saha A, Adamcik J, Bolisetty S, Handschin S, Mezzenga R. Fibrillar networks of glycyrrhizic acid for hybrid nanomaterials with catalytic features. Angew Chem Int Ed Engl 2015; 54:5408-12. [PMID: 25759108 DOI: 10.1002/anie.201411875] [Citation(s) in RCA: 86] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2014] [Revised: 02/13/2015] [Indexed: 11/05/2022]
Abstract
Self-assembly of the naturally occurring sweetening agent, glycyrrhizic acid (GA) in water is studied by small-angle X-ray scattering and microscopic techniques. Statistical analysis on atomic force microscopy images reveals the formation of ultralong GA fibrils with uniform thickness of 2.5 nm and right-handed twist with a pitch of 9 nm, independently of GA concentration. Transparent nematic GA hydrogels are exploited to create functional hybrid materials. Two-fold and three-fold hybrids are developed by introducing graphene oxide (GO) and in situ-synthesized gold nanoparticles (Au NPs) in the hydrogel matrix for catalysis applications. In the presence of GO, the catalytic efficiency of Au NPs in the reduction of p-nitrophenol to p-aminophenol is enhanced by 2.5 times. Gold microplate single crystals are further synthesized in the GA hydrogel, expanding the scope of these hybrids and demonstrating their versatility in materials design.
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Affiliation(s)
- Abhijit Saha
- Laboratory of Food & Soft Materials Science, Institute of Food, Nutrition & Health, Department of Health Sciences & Technology, ETH Zürich, Schmelzbergstrasse 9, LFO E23, 8092 Zürich (Switzerland)
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46
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Saha A, Adamcik J, Bolisetty S, Handschin S, Mezzenga R. Fibrillar Networks of Glycyrrhizic Acid for Hybrid Nanomaterials with Catalytic Features. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201411875] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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47
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Schefer L, Usov I, Mezzenga R. Anomalous Stiffening and Ion-Induced Coil–Helix Transition of Carrageenans under Monovalent Salt Conditions. Biomacromolecules 2015; 16:985-91. [DOI: 10.1021/bm501874k] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Larissa Schefer
- Department of Health Sciences
and Technology, ETH Zurich, Schmelzbergstrasse 9, 8092 Zurich, Switzerland
| | - Ivan Usov
- Department of Health Sciences
and Technology, ETH Zurich, Schmelzbergstrasse 9, 8092 Zurich, Switzerland
| | - Raffaele Mezzenga
- Department of Health Sciences
and Technology, ETH Zurich, Schmelzbergstrasse 9, 8092 Zurich, Switzerland
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48
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Usov I, Mezzenga R. FiberApp: An Open-Source Software for Tracking and Analyzing Polymers, Filaments, Biomacromolecules, and Fibrous Objects. Macromolecules 2015. [DOI: 10.1021/ma502264c] [Citation(s) in RCA: 189] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Ivan Usov
- Department of Health Science & Technology, ETH Zurich, Schmelzbergstrasse 9, LFO E23, 8092 Zurich, Switzerland
| | - Raffaele Mezzenga
- Department of Health Science & Technology, ETH Zurich, Schmelzbergstrasse 9, LFO E23, 8092 Zurich, Switzerland
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