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Yu K, Gao Y, Wang R, Wu L, Ma X, Fang Y, Fang X, Dou Q. Ultra-Tough and Highly Stretchable Dual-Crosslinked Eutectogel Based on Coordinated and Non-Coordinated Two Types Deep Eutectic Solvent Mixture. Macromol Rapid Commun 2024; 45:e2300557. [PMID: 37880914 DOI: 10.1002/marc.202300557] [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: 09/17/2023] [Revised: 10/11/2023] [Indexed: 10/27/2023]
Abstract
Eutectogels are gaining attention in flexible device applications for their superior ionic conductivity, stability, biocompatibility, and cost-effectiveness. However, most existing eutectogels suffer from low strength and toughness. Herein, ultra-tough and highly stretchable polyacrylamide (PAM) eutectogels featuring a dual-crosslinked network comprising chemical cross-linking and physical cross-linking facilitated by metal coordination bonds and hydrogen bonds are developed. This is achieved through a controlled strategy involving polymerization of acrylamide in a coordinated metal salt-type deep eutectic solvent (DES) combined with a non-coordinated choline chloride (ChCl)-type DES mixture. By varying the molar ratio of these two types of DES, exceptional and adjustable mechanical properties of the resulting eutectogel are achieved, including a high tensile strength ranging from 2.9 to 8.2 MPa and elongation at break ranging from 1725 to 747%, at a 70 wt% DES content. Furthermore, the reversible non-covalent crosslinking in these eutectogels enables self-recovery and self-healing capabilities of eutectogels. The prepared eutectogels also exhibit outstanding ionic conductivity (3.56 mS cm-1 ), making them well-suited for use as strain sensors in human motion detection. The toughening strategy is universally effective for creating tough eutectogels using coordinated metal salt-type DES with various metal ions, as well as a diverse range of coordinatable polymers.
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Affiliation(s)
- Kaixuan Yu
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing, 211816, P. R. China
| | - Yifeng Gao
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing, 211816, P. R. China
| | - Rui Wang
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing, 211816, P. R. China
| | - Linlin Wu
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing, 211816, P. R. China
| | - Xiaofeng Ma
- College of Science, Nanjing Forestry University, Nanjing, 210037, P. R. China
| | - Ying Fang
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing, 211816, P. R. China
| | - Xianli Fang
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing, 211816, P. R. China
| | - Qiang Dou
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing, 211816, P. R. China
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2
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Heckenhauer J, Stewart RJ, Ríos-Touma B, Powell A, Dorji T, Frandsen PB, Pauls SU. Characterization of the primary structure of the major silk gene, h-fibroin, across caddisfly (Trichoptera) suborders. iScience 2023; 26:107253. [PMID: 37529107 PMCID: PMC10387566 DOI: 10.1016/j.isci.2023.107253] [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: 02/06/2023] [Revised: 04/05/2023] [Accepted: 06/27/2023] [Indexed: 08/03/2023] Open
Abstract
Larvae of caddisflies (Trichoptera) produce silk to build various underwater structures allowing them to exploit a wide range of aquatic environments. The silk adheres to various substrates underwater and has high tensile strength, extensibility, and toughness and is of interest as a model for biomimetic adhesives. As a step toward understanding how the properties of underwater silk evolved in Trichoptera, we used genomic data to identify full-length sequences and characterize the primary structure of the major silk protein, h-fibroin, across the order. The h-fibroins have conserved termini and basic motif structure with high variation in repeating modules and variation in the percentage of amino acids, mainly proline. This finding might be linked to differences in mechanical properties related to the different silk usage and sets a starting point for future studies to screen and correlate amino acid motifs and other sequence features with quantifiable silk properties.
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Affiliation(s)
- Jacqueline Heckenhauer
- LOEWE Centre for Translational Biodiversity Genomics (LOEWE-TBG), Frankfurt, Hesse 60325, Germany
- Department of Terrestrial Zoology, Senckenberg Research Institute and Natural History Museum Frankfurt, Frankfurt, Hesse 60325, Germany
| | - Russell J. Stewart
- Department of Biomedical Engineering, University of Utah, Salt Lake City, UT 84112, USA
| | - Blanca Ríos-Touma
- Facultad de Ingenierías y Ciencias Aplicadas, Ingeniería Ambiental, Grupo de Investigación en Biodiversidad, Medio Ambiente y Salud (BIOMAS), Universidad de Las Américas, Quito, EC 170124, Ecuador
| | - Ashlyn Powell
- Department of Plant and Wildlife Science, Brigham Young University, Provo, UT 84602, USA
| | - Tshering Dorji
- Department of Environment and Climate Studies, Royal University of Bhutan, Punakha 13001, Bhutan
| | - Paul B. Frandsen
- LOEWE Centre for Translational Biodiversity Genomics (LOEWE-TBG), Frankfurt, Hesse 60325, Germany
- Department of Plant and Wildlife Science, Brigham Young University, Provo, UT 84602, USA
- Data Science Lab, Smithsonian Institution, Washington, DC 20560, USA
| | - Steffen U. Pauls
- LOEWE Centre for Translational Biodiversity Genomics (LOEWE-TBG), Frankfurt, Hesse 60325, Germany
- Department of Terrestrial Zoology, Senckenberg Research Institute and Natural History Museum Frankfurt, Frankfurt, Hesse 60325, Germany
- Institute for Insect Biotechnology, Justus-Liebig-University, Gießen, Hesse 35392; Germany
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Design, Synthesis and Actual Applications of the Polymers Containing Acidic P-OH Fragments: Part 2-Sidechain Phosphorus-Containing Polyacids. Int J Mol Sci 2023; 24:ijms24021613. [PMID: 36675149 PMCID: PMC9862152 DOI: 10.3390/ijms24021613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Accepted: 01/11/2023] [Indexed: 01/18/2023] Open
Abstract
Macromolecules containing acidic fragments in side-groups—polyacids—occupy a special place among synthetic polymers. Properties and applications of polyacids are directly related to the chemical structure of macromolecules: the nature of the acidic groups, polymer backbone, and spacers between the main chain and acidic groups. The chemical nature of the phosphorus results in the diversity of acidic >P(O)OH fragments in sidechain phosphorus-containing polyacids (PCPAs) that can be derivatives of phosphoric or phosphinic acids. Sidechain PCPAs have many similarities with other polyacids. However, due to the relatively high acidity of −P(O)(OH)2 fragment, bone and mineral affinity, and biocompatibility, sidechain PCPAs have immense potential for diverse applications. Synthetic approaches to sidechain PCPAs also have their own specifics. All these issues are discussed in the present review.
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4
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Bio-Inspired Muco-Adhesive Polymers for Drug Delivery Applications. Polymers (Basel) 2022; 14:polym14245459. [PMID: 36559825 PMCID: PMC9785024 DOI: 10.3390/polym14245459] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 12/03/2022] [Accepted: 12/04/2022] [Indexed: 12/15/2022] Open
Abstract
Muco-adhesive drug delivery systems continue to be one of the most studied for controlled pharmacokinetics and pharmacodynamics. Briefly, muco-adhesive polymers, can be described as bio-polymers that adhere to the mucosal (mucus) surface layer, for an extended residency period of time at the site of application, by the help of interfacial forces resulting in improved drug delivery. When compared to traditional drug delivery systems, muco-adhesive carriers have the potential to enhance therapeutic performance and efficacy, locally and systematically, in oral, rectal, vaginal, amongst other routes. Yet, the achieving successful muco-adhesion in a novel polymeric drug delivery solution is a complex process involving key physico-chemico-mechanical parameters such as adsorption, wettability, polymer chain length, inter-penetration and cross-linking, to list a few. Hence, and in light of accruing progress, evidence and interest, during the last decade, this review aims to provide the reader with an overview of the theories, principles, properties, and underlying mechanisms of muco-adhesive polymers for pharmaceutics; from basics to design to characterization to optimization to evaluation to market. A special focus is devoted to recent advances incorporating bio-inspired polymers for designing controlled muco-adhesive drug delivery systems.
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5
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Dong C, Lu M, Fan H, Jin Z. Cooperation of Zr(IV)-N and Zr(IV)-O coordinate bonds of Zr(IV)-amide ensures the transparent and tough polyacrylamide hydrogels. J Mater Chem B 2022; 10:9258-9265. [PMID: 36326062 DOI: 10.1039/d2tb01496c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Developing advanced soft machines and tissue engineering for load-bearing cartilage or tendons requires tough hydrogels. However, the construction of double or triple crosslinked networks for these tough hydrogels, i.e., a strong network crosslinked by covalent bonds and one or two sacrificial networks built by hydrogen bonds or coordinate bonds, generally asks for multiple steps. It remains a challenge to develop hydrogels with a combination of excellent toughness and a high content of water through the time-saving one-pot process. This study demonstrates that this puzzle could be solved through engineering zirconium(IV)-amide coordinate bonds. To be specific, the combination of strong Zr(IV)-O and moderate Zr(IV)-N coordinate bonds in Zr-polyacrylamide (Zr-PAAm) hydrogels has the advantage that they are usually generated through multiple cross-linked networks. Compared to chemical crosslinked PAAm hydrogels, the highly transparent Zr-PAAm hydrogels crosslinked by Zr(NO3)4 displayed a 26-times increase in fracture stress, 4-times in fracture strain, 6-times in elastic modulus, and over 250-times in toughness. Besides, the mechanical properties of Zr-PAAm hydrogels could be altered over a wide range via changing the anion species, showing a dependence on the Hofmeister effect. The co-existence of Zr(IV)-N and Zr(IV)-O has been confirmed through XPS and FTIR characterizations. In particular, the effect of Zr(IV)-N in Zr-PAAm hydrogels has been verified by comparing the property changes of Zr-PAAm hydrogels before and after swelling in water, in which the Zr(IV)-N in the as-prepared hydrogels was replaced by Zr(IV)-O in the swollen gels. With ultra-stretchability and high transparency, the colorless Zr-PAAm hydrogels displayed rich interference colors under stretching, which brought great potential in anti-counterfeiting materials.
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Affiliation(s)
- Chenglong Dong
- Key Laboratory of Advanced Light Conversion Materials and Biophotonics, Department of Chemistry, Renmin University of China, Beijing 100872, People's Republic of China.
| | - Mengfan Lu
- Key Laboratory of Advanced Light Conversion Materials and Biophotonics, Department of Chemistry, Renmin University of China, Beijing 100872, People's Republic of China.
| | - Hailong Fan
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, N21W10, Kita-ku, Sapporo 001-0021, Japan
| | - Zhaoxia Jin
- Key Laboratory of Advanced Light Conversion Materials and Biophotonics, Department of Chemistry, Renmin University of China, Beijing 100872, People's Republic of China.
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6
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Wang R, Chen X, Yang Y, Xu Y, Zhang Q, Zhang Y, Cheng Y. Imidazolidinyl urea reinforced polyacrylamide hydrogels through the formation of multiple hydrogen bonds. REACT FUNCT POLYM 2022. [DOI: 10.1016/j.reactfunctpolym.2022.105183] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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7
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Kakui K, Fleming JF, Mori M, Fujiwara Y, Arakawa K. Comprehensive Transcriptome Sequencing of Tanaidacea with Proteomic Evidences for Their Silk. Genome Biol Evol 2021; 13:6460816. [PMID: 34904645 PMCID: PMC8715525 DOI: 10.1093/gbe/evab281] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/09/2021] [Indexed: 11/14/2022] Open
Abstract
Tanaidaceans are small benthic crustaceans that mainly inhabit diverse marine environments, and they comprise one of the most diverse and abundant macrofaunal groups in the deep sea. Tanaidacea is one of the most thread-dependent taxa in the Crustacea, constructing tubes, spun with their silk, for shelter. In this work, we sequenced and assembled the comprehensive transcriptome of 23 tanaidaceans encompassing 14 families and 4 superfamilies of Tanaidacea, and performed silk proteomics of Zeuxo ezoensis to search for its silk genes. As a result, we identified two families of silk proteins that are conserved across the four superfamilies. The long and repetitive nature of these silk genes resembles that of other silk-producing organisms, and the two families of proteins are similar in composition to silkworm and caddisworm fibroins, respectively. Moreover, the amino acid composition of the repetitive motifs of tanaidacean silk tends to be more hydrophilic, and therefore could be a useful resource in studying their unique adaptation of silk use in a marine environment. The availability of comprehensive transcriptome data in these taxa, coupled with proteomic evidence of their silk genes, will facilitate evolutionary and ecological studies.
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Affiliation(s)
- Keiichi Kakui
- Faculty of Science, Hokkaido University, Sapporo, Hokkaido, Japan
| | - James F Fleming
- Institute for Advanced Biosciences, Keio University, Tsuruoka, Yamagata, Japan
| | - Masaru Mori
- Institute for Advanced Biosciences, Keio University, Tsuruoka, Yamagata, Japan.,Graduate School of Media and Governance, Keio University, Fujisawa, Kanagawa, Japan
| | - Yoshihiro Fujiwara
- Research Institute for Global Change, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokosuka, Kanagawa, Japan
| | - Kazuharu Arakawa
- Institute for Advanced Biosciences, Keio University, Tsuruoka, Yamagata, Japan.,Graduate School of Media and Governance, Keio University, Fujisawa, Kanagawa, Japan.,Faculty of Environment and Information Studies, Keio University, Fujisawa, Kanagawa, Japan
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8
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Jiang Z, Li Y, Shen Y, Yang J, Zhang Z, You Y, Lv Z, Yao L. Robust Hydrogel Adhesive with Dual Hydrogen Bond Networks. Molecules 2021; 26:molecules26092688. [PMID: 34064401 PMCID: PMC8124778 DOI: 10.3390/molecules26092688] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/29/2021] [Accepted: 04/29/2021] [Indexed: 11/16/2022] Open
Abstract
Hydrogel adhesives are attractive for applications in intelligent soft materials and tissue engineering, but conventional hydrogels usually have poor adhesion. In this study, we designed a strategy to synthesize a novel adhesive with a thin hydrogel adhesive layer integrated on a tough substrate hydrogel. The adhesive layer with positive charges of ammonium groups on the polymer backbones strongly bonds to a wide range of nonporous materials’ surfaces. The substrate layer with a dual hydrogen bond system consists of (i) weak hydrogen bonds between N,N-dimethyl acrylamide (DMAA) and acrylic acid (AAc) units and (ii) strong multiple hydrogen bonds between 2-ureido-4[1H]-pyrimidinone (UPy) units. The dual hydrogen-bond network endowed the hydrogel adhesives with unique mechanical properties, e.g., toughness, highly stretchability, and insensitivity to notches. The hydrogel adhesion to four types of materials like glass, 316L stainless steel, aluminum, Al2O3 ceramic, and two biological tissues including pig skin and pig kidney was investigated. The hydrogel bonds strongly to dry solid surfaces and wet tissue, which is promising for biomedical applications.
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9
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Jiang F, Chi Z, Ding Y, Quan M, Tian Y, Shi J, Song F, Liu C. Wound Dressing Hydrogel of Enteromorpha prolifera Polysaccharide-Polyacrylamide Composite: A Facile Transformation of Marine Blooming into Biomedical Material. ACS APPLIED MATERIALS & INTERFACES 2021; 13:14530-14542. [PMID: 33729756 DOI: 10.1021/acsami.0c21543] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Great endeavors have been dedicated to the development of wound dressing materials. However, there is still a demand for developing a wound dressing hydrogel that integrates natural macromolecules without requiring extra chemical modifications, so as to enable a facile transformation and practical application in wound healing. Herein, a composite hydrogel was prepared with water-soluble polysaccharides from Enteromorpha prolifera (PEP) cross-linked with boric acid and polyacrylamide cross-linked via polymerization (PAM) using a one-pot method. The dual-network of this hydrogel enabled it to have an ultratough mechanical strength. Moreover, interfacial characterizations reflected that the hydrogen bonds and dynamic hydroxyl-borate bonds contributed to the self-healing ability of the PEP-PAM hydrogel, and the surface groups on the hydrogel allowed for tissue adhesiveness and natural antioxidant properties. Additionally, human epidermal growth factor-loaded PEP-PAM hydrogel promoted cell proliferation and migration in vitro and significantly accelerated wound healing in vivo on model rats. These progresses suggested a prospect for the PEP-PAM hydrogel as an effective and easily available wound dressing material. Remarkably, this work showcases that a wound dressing hydrogel can be facially developed by using natural polysaccharides as a one component and offers a new route for the high-value utilization of disastrous marine blooming biomass by transforming it into a biomedical material.
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Affiliation(s)
- Fei Jiang
- College of Marine Life Sciences, Ocean University of China, No.5 Yushan Road, Qingdao 266003, China
| | - Zhe Chi
- College of Marine Life Sciences, Ocean University of China, No.5 Yushan Road, Qingdao 266003, China
| | - Yuanyuan Ding
- College of Marine Life Sciences, Ocean University of China, No.5 Yushan Road, Qingdao 266003, China
| | - Meilin Quan
- College of Marine Life Sciences, Ocean University of China, No.5 Yushan Road, Qingdao 266003, China
| | - Yu Tian
- College of Marine Life Sciences, Ocean University of China, No.5 Yushan Road, Qingdao 266003, China
| | - Jie Shi
- Qingdao Biotemed Biomaterials Co. Ltd. No. 168 Zhuzhou Road, Qingdao 266101, China
| | - Fulai Song
- Qingdao Biotemed Biomaterials Co. Ltd. No. 168 Zhuzhou Road, Qingdao 266101, China
| | - Chenguang Liu
- College of Marine Life Sciences, Ocean University of China, No.5 Yushan Road, Qingdao 266003, China
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10
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11
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Li X, Peng X, Li R, Zhang Y, Liu Z, Huang Y, Long S, Li H. Multiple Hydrogen Bonds–Reinforced Hydrogels with High Strength, Shape Memory, and Adsorption Anti‐Inflammatory Molecules. Macromol Rapid Commun 2020; 41:e2000202. [DOI: 10.1002/marc.202000202] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 06/06/2020] [Indexed: 11/06/2022]
Affiliation(s)
- Xuefeng Li
- Hubei Provincial Key Laboratory of Green Materials for Light Industry Hubei University of Technology Wuhan 430068 P. R. China
- Collaborative Innovation Center of Green Lightweight Materials and Processing Hubei University of Technology Wuhan 430068 P. R. China
| | - Xueyin Peng
- Hubei Provincial Key Laboratory of Green Materials for Light Industry Hubei University of Technology Wuhan 430068 P. R. China
| | - Rongzhe Li
- Hubei Provincial Key Laboratory of Green Materials for Light Industry Hubei University of Technology Wuhan 430068 P. R. China
| | - Yikun Zhang
- Hubei Provincial Key Laboratory of Green Materials for Light Industry Hubei University of Technology Wuhan 430068 P. R. China
| | - Zuifang Liu
- Collaborative Innovation Center of Green Lightweight Materials and Processing Hubei University of Technology Wuhan 430068 P. R. China
| | - Yiwan Huang
- Hubei Provincial Key Laboratory of Green Materials for Light Industry Hubei University of Technology Wuhan 430068 P. R. China
| | - Shijun Long
- Collaborative Innovation Center of Green Lightweight Materials and Processing Hubei University of Technology Wuhan 430068 P. R. China
| | - Haiyan Li
- Med‐X Research Institute School of Biomedical Engineering Shanghai Jiao Tong University Shanghai 200030 P. R. China
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12
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Su Y, Wu Y, Liu M, Qing Y, Zhou J, Wu Y. Ferric Ions Modified Polyvinyl Alcohol for Enhanced Molecular Structure and Mechanical Performance. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E1412. [PMID: 32244984 PMCID: PMC7142794 DOI: 10.3390/ma13061412] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 03/12/2020] [Accepted: 03/19/2020] [Indexed: 02/06/2023]
Abstract
The highly crystallized molecular structure of polyvinyl alcohol (PVA) makes the polymer with poor performance in mechanical strength and water resistance. To modify the molecular structure of PVA and to diminish the complicated procedures and environmental impacts, ferric ions (in ion composite form) have been used to set the interactions with the molecule chains of PVA. The crystallinity, chemical groups change, and mechanical performance of the polymer has been confirmed by X-ray diffraction (XRD), Fourier transform infrared spectroscope (FTIR), and the bonding/membrane tensile strength test. The crystallinity of PVA is reduced from 41.6% to 7.7% with the addition of 2.0% of ferric ions. The tensile strength of the modified PVA membrane is increased by 240%. Moreover, with tougher structure and improved fluidity, the strength of ferric ions modified PVA bonded wood samples is increased by 157%. The modification of PVA with ion composite may have vast applications in many fields, such as paper industry, wood adhesives, functional materials, and polymer structure design.
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Affiliation(s)
- Yu Su
- College of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China; (Y.S.); (Y.W.); (Y.Q.); (Y.W.)
| | - Ying Wu
- College of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China; (Y.S.); (Y.W.); (Y.Q.); (Y.W.)
| | - Ming Liu
- College of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China; (Y.S.); (Y.W.); (Y.Q.); (Y.W.)
| | - Yan Qing
- College of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China; (Y.S.); (Y.W.); (Y.Q.); (Y.W.)
| | - Jianbo Zhou
- Forestry New Technology Research Institute, Chinese Academy of Forestry, Beijing 100091, China
| | - Yiqiang Wu
- College of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China; (Y.S.); (Y.W.); (Y.Q.); (Y.W.)
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13
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Du M, Yang L, Liao C, Diangha TP, Ma Y, Zhang L, Lan Y, Chang G. Recyclable and Dual Cross-Linked High-Performance Polymer with an Amplified Strength-Toughness Combination. Macromol Rapid Commun 2020; 41:e1900606. [PMID: 32003531 DOI: 10.1002/marc.201900606] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 01/05/2020] [Indexed: 02/02/2023]
Abstract
Supramolecular chemistry has provided versatile and affordable solutions for the design of tough, flexible polymers. However, application of supramolecular chemistry has been limited to the production of rigid, high-performance polymers due to weak segment mobility. This paper describes a new method of toughening rigid high-performance polymers using the synergistic effect between dual Cu2+ -coordination bonds as a crosslink. These dual Cu2+ -coordination cross-linked high-performance polymers are a class of rigid polymers with an outstanding combination of strength and toughness. The distinct lifetimes and binding strengths of the dual Cu2+ -coordination bonds in a rigid polymer network elicit different dynamic behaviors to improve its energy dissipation and mechanical properties. Moreover, the reformation and removal of Cu2+ -coordination bonds by pyrophosphoric acid endows these cross-linked high-performance polymers with recyclability.
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Affiliation(s)
- Mengqi Du
- State Key Laboratory of Environment-friendly Energy Materials and School of Material Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, P. R. China
| | - Li Yang
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania, 19104, USA
| | - Cong Liao
- State Key Laboratory of Environment-friendly Energy Materials and School of Material Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, P. R. China
| | - Tasah Philas Diangha
- State Key Laboratory of Environment-friendly Energy Materials and School of Material Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, P. R. China
| | - Yuanchi Ma
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania, 19104, USA
| | - Lin Zhang
- State Key Laboratory of Environment-friendly Energy Materials and School of Material Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, P. R. China.,Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania, 19104, USA.,Joint Laboratory for Extreme Conditions Matter Properties, Southwest University of Science and Technology and Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, 621900, P. R. China
| | - Yang Lan
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Cambridge, CB2 1EW, UK
| | - Guanjun Chang
- State Key Laboratory of Environment-friendly Energy Materials and School of Material Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, P. R. China.,Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania, 19104, USA
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14
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Heckenhauer J, Frandsen PB, Gupta DK, Paule J, Prost S, Schell T, Schneider JV, Stewart RJ, Pauls SU. Annotated Draft Genomes of Two Caddisfly Species Plectrocnemia conspersa CURTIS and Hydropsyche tenuis NAVAS (Insecta: Trichoptera). Genome Biol Evol 2019; 11:3445-3451. [PMID: 31774498 PMCID: PMC6916706 DOI: 10.1093/gbe/evz264] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/25/2019] [Indexed: 02/06/2023] Open
Abstract
Members of the speciose insect order Trichoptera (caddisflies) provide important ecosystem services, for example, nutrient cycling through breaking down of organic matter. They are also of industrial interest due to their larval silk secretions. These form the basis for their diverse case-making behavior that allows them to exploit a wide range of ecological niches. Only five genomes of this order have been published thus far, with variable qualities regarding contiguity and completeness. A low-cost sequencing strategy, that is, using a single Oxford Nanopore flow cell per individual along with Illumina sequence reads was successfully used to generate high-quality genomes of two Trichoptera species, Plectrocnemia conspersa and Hydropsyche tenuis. Of the de novo assembly methods compared, assembly of low coverage Nanopore reads (∼18×) and subsequent polishing with long reads followed by Illumina short reads (∼80-170× coverage) yielded the highest genome quality both in terms of contiguity and BUSCO completeness. The presented genomes are the shortest to date and extend our knowledge of genome size across caddisfly families. The genomic region that encodes for light (L)-chain fibroin, a protein component of larval caddisfly silk was identified and compared with existing L-fibroin gene clusters. The new genomic resources presented in this paper are among the highest quality Trichoptera genomes and will increase the knowledge of this important insect order by serving as the basis for phylogenomic and comparative genomic studies.
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Affiliation(s)
- Jacqueline Heckenhauer
- LOEWE Centre for Translational Biodiversity Genomics (LOEWE‐TBG), Frankfurt, Germany
- Department of Terrestrial Zoology, Entomology III, Senckenberg Research Institute and Natural History Museum Frankfurt, Frankfurt, Germany
| | - Paul B Frandsen
- LOEWE Centre for Translational Biodiversity Genomics (LOEWE‐TBG), Frankfurt, Germany
- Department of Plant & Wildlife Sciences, Brigham Young University, Provo, UT
- Data Science Lab, Smithsonian Institution, Washington, DC
| | - Deepak K Gupta
- LOEWE Centre for Translational Biodiversity Genomics (LOEWE‐TBG), Frankfurt, Germany
| | - Juraj Paule
- Department of Botany and Molecular Evolution, Senckenberg Research Institute and Natural History Museum Frankfurt, Frankfurt, Germany
| | - Stefan Prost
- LOEWE Centre for Translational Biodiversity Genomics (LOEWE‐TBG), Frankfurt, Germany
- South African National Biodiversity Institute, National Zoological Gardens of South Africa, Pretoria, South Africa
| | - Tilman Schell
- LOEWE Centre for Translational Biodiversity Genomics (LOEWE‐TBG), Frankfurt, Germany
| | - Julio V Schneider
- Department of Terrestrial Zoology, Entomology III, Senckenberg Research Institute and Natural History Museum Frankfurt, Frankfurt, Germany
| | - Russell J Stewart
- Department of Biomedical Engineering, University of Utah, Salt Lake City, UT
| | - Steffen U Pauls
- LOEWE Centre for Translational Biodiversity Genomics (LOEWE‐TBG), Frankfurt, Germany
- Department of Terrestrial Zoology, Entomology III, Senckenberg Research Institute and Natural History Museum Frankfurt, Frankfurt, Germany
- Institute for Insect Biotechnology, Justus-Liebig-University, Gießen, Germany
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15
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Wei W, Zhu M, Wu S, Shen X, Li S. Stimuli-Responsive Biopolymers: An Inspiration for Synthetic Smart Materials and Their Applications in Self-Controlled Catalysis. J Inorg Organomet Polym Mater 2019. [DOI: 10.1007/s10904-019-01382-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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16
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Lv Z, Qiao JN, Song YN, Ji X, Tang JH, Yan DX, Lei J, Li ZM. Baroplastics with Robust Mechanical Properties and Reserved Processability through Hydrogen-Bonded Interactions. ACS APPLIED MATERIALS & INTERFACES 2019; 11:12008-12016. [PMID: 30816693 DOI: 10.1021/acsami.8b20676] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Conventional polymers are usually processed at a much higher temperature than room temperature, which inevitably leads to huge energy consumption and degradation of the polymers and thus a low recycling ability. Herein, we synthesized a poly( n-butyl acrylate)@polystyrene (PBA@PS) core-shell polymer to prepare a typical baroplastic (processible at room temperature). However, this type of baroplastics always has a low mechanical property. To solve this problem, in this work, we introduced hydrogen bonds into the matrix and successfully reinforced baroplastics for the first time. The hydrogen-bonded interaction was introduced by complexing PBA@PS with poly(acrylic acid) and poly(ethylene oxide). The results show that the reinforced baroplastics possessed notably enhanced mechanical properties and good processability. Their mechanical strength and modulus reached as high as 5.6 (by 73%) and 10 MPa (by 400%), respectively. Moreover, the baroplastics could be remolded many times at room temperature and, at the same time, still showed a higher tensile strength (10.5 MPa, 3.3 times that of the initial PBA@PS, which was never achieved in previous works), which resulted from the reversible hydrogen bonds and reserved orientation of molecular chains. Our work opened a new path to reinforce baroplastics and could widen their applications. Furthermore, not limited to the hydrogen bonds, more sacrificial bonds, such as ionic bonds, host-guest interactions, and metal-ligand coordination bonds, could be used to fabricate high-performance baroplastics.
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Affiliation(s)
- Zhi Lv
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering , Sichuan University , Chengdu 610065 , China
| | - Jia-Ning Qiao
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering , Sichuan University , Chengdu 610065 , China
| | - Ying-Nan Song
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering , Sichuan University , Chengdu 610065 , China
| | - Xu Ji
- College of Chemical Engineering , Sichuan University , Chengdu 610065 , P. R. China
| | - Jian-Hua Tang
- College of Chemical Engineering , Sichuan University , Chengdu 610065 , P. R. China
| | - Ding-Xiang Yan
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering , Sichuan University , Chengdu 610065 , China
| | - Jun Lei
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering , Sichuan University , Chengdu 610065 , China
| | - Zhong-Ming Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering , Sichuan University , Chengdu 610065 , China
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17
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Li X, Li R, Liu Z, Gao X, Long S, Zhang G. Integrated Functional High-Strength Hydrogels with Metal-Coordination Complexes and H-Bonding Dual Physically Cross-linked Networks. Macromol Rapid Commun 2018; 39:e1800400. [DOI: 10.1002/marc.201800400] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Revised: 07/02/2018] [Indexed: 12/25/2022]
Affiliation(s)
- Xuefeng Li
- Hubei Provincial Key Laboratory of Green Materials for Light Industry; Hubei University of Technology; Wuhan 430068 P. R. China
- Collaborative Innovation Center of Green Light-Weight Materials and Processing; Hubei University of Technology; Wuhan 430068 P. R. China
| | - Rongzhe Li
- Hubei Provincial Key Laboratory of Green Materials for Light Industry; Hubei University of Technology; Wuhan 430068 P. R. China
| | - Zuifang Liu
- Hubei Provincial Key Laboratory of Green Materials for Light Industry; Hubei University of Technology; Wuhan 430068 P. R. China
| | - Xiang Gao
- Hubei Provincial Key Laboratory of Green Materials for Light Industry; Hubei University of Technology; Wuhan 430068 P. R. China
| | - Shijun Long
- Collaborative Innovation Center of Green Light-Weight Materials and Processing; Hubei University of Technology; Wuhan 430068 P. R. China
| | - Gaowen Zhang
- Hubei Provincial Key Laboratory of Green Materials for Light Industry; Hubei University of Technology; Wuhan 430068 P. R. China
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18
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Hofman AH, van Hees IA, Yang J, Kamperman M. Bioinspired Underwater Adhesives by Using the Supramolecular Toolbox. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1704640. [PMID: 29356146 DOI: 10.1002/adma.201704640] [Citation(s) in RCA: 282] [Impact Index Per Article: 47.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Revised: 10/02/2017] [Indexed: 05/25/2023]
Abstract
Nature has developed protein-based adhesives whose underwater performance has attracted much research attention over the last few decades. The adhesive proteins are rich in catechols combined with amphiphilic and ionic features. This combination of features constitutes a supramolecular toolbox, to provide stimuli-responsive processing of the adhesive, to secure strong adhesion to a variety of surfaces, and to control the cohesive properties of the material. Here, the versatile interactions used in adhesives secreted by sandcastle worms and mussels are explored. These biological principles are then put in a broader perspective, and synthetic adhesive systems that are based on different types of supramolecular interactions are summarized. The variety and combinations of interactions that can be used in the design of new adhesive systems are highlighted.
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Affiliation(s)
- Anton H Hofman
- Physical Chemistry and Soft Matter, Wageningen University, Stippeneng 4, 6708 WE, Wageningen, The Netherlands
| | - Ilse A van Hees
- Physical Chemistry and Soft Matter, Wageningen University, Stippeneng 4, 6708 WE, Wageningen, The Netherlands
| | - Juan Yang
- Rolls-Royce@NTU Corporate Lab, Nanyang Technological University, 65 Nanyang Drive, Singapore, 637460, Singapore
| | - Marleen Kamperman
- Physical Chemistry and Soft Matter, Wageningen University, Stippeneng 4, 6708 WE, Wageningen, The Netherlands
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19
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Filippidi E, Cristiani TR, Eisenbach CD, Waite JH, Israelachvili JN, Ahn BK, Valentine MT. Toughening elastomers using mussel-inspired iron-catechol complexes. Science 2018; 358:502-505. [PMID: 29074770 DOI: 10.1126/science.aao0350] [Citation(s) in RCA: 300] [Impact Index Per Article: 50.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Accepted: 09/05/2017] [Indexed: 01/20/2023]
Abstract
Materials often exhibit a trade-off between stiffness and extensibility; for example, strengthening elastomers by increasing their cross-link density leads to embrittlement and decreased toughness. Inspired by cuticles of marine mussel byssi, we circumvent this inherent trade-off by incorporating sacrificial, reversible iron-catechol cross-links into a dry, loosely cross-linked epoxy network. The iron-containing network exhibits two to three orders of magnitude increases in stiffness, tensile strength, and tensile toughness compared to its iron-free precursor while gaining recoverable hysteretic energy dissipation and maintaining its original extensibility. Compared to previous realizations of this chemistry in hydrogels, the dry nature of the network enables larger property enhancement owing to the cooperative effects of both the increased cross-link density given by the reversible iron-catecholate complexes and the chain-restricting ionomeric nanodomains that they form.
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Affiliation(s)
- Emmanouela Filippidi
- Materials Research Laboratory, University of California, Santa Barbara, CA 93106, USA.,Department of Mechanical Engineering, University of California, Santa Barbara, CA 93106, USA
| | - Thomas R Cristiani
- Materials Research Laboratory, University of California, Santa Barbara, CA 93106, USA.,Materials Department, University of California, Santa Barbara, CA 93106, USA
| | - Claus D Eisenbach
- Materials Research Laboratory, University of California, Santa Barbara, CA 93106, USA.,Institut für Polymerchemie, University of Stuttgart, Germany
| | - J Herbert Waite
- Materials Research Laboratory, University of California, Santa Barbara, CA 93106, USA.,Department of Molecular, Cellular and Developmental Biology, University of California, Santa Barbara, CA 93106, USA
| | - Jacob N Israelachvili
- Materials Research Laboratory, University of California, Santa Barbara, CA 93106, USA.,Materials Department, University of California, Santa Barbara, CA 93106, USA.,Department of Chemical Engineering, University of California, Santa Barbara, CA 93106, USA
| | - B Kollbe Ahn
- Marine Science Institute, University of California, Santa Barbara, CA 93106, USA
| | - Megan T Valentine
- Materials Research Laboratory, University of California, Santa Barbara, CA 93106, USA. .,Department of Mechanical Engineering, University of California, Santa Barbara, CA 93106, USA
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20
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Ghanian MH, Mirzadeh H, Baharvand H. In Situ Forming, Cytocompatible, and Self-Recoverable Tough Hydrogels Based on Dual Ionic and Click Cross-Linked Alginate. Biomacromolecules 2018; 19:1646-1662. [DOI: 10.1021/acs.biomac.8b00140] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mohammad Hossein Ghanian
- Department of Polymer Engineering and Color Technology, Amirkabir University of Technology, Tehran 15875-4413, Iran
| | - Hamid Mirzadeh
- Department of Polymer Engineering and Color Technology, Amirkabir University of Technology, Tehran 15875-4413, Iran
| | - Hossein Baharvand
- Department of Developmental Biology, University of Science and Culture, Tehran 1461968151, Iran
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21
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Song IT, Stewart RJ. Complex coacervation of Mg(ii) phospho-polymethacrylate, a synthetic analog of sandcastle worm adhesive phosphoproteins. SOFT MATTER 2018; 14:379-386. [PMID: 29147716 DOI: 10.1039/c7sm01654a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The highly phosphorylated Pc3 proteins, major components of the sandcastle worm adhesive, are sequestered with Mg as spherical sub-granules within heterogeneous secretory granules in adhesive gland cells. The phase behavior of a synthetic phospho-polymethacrylate analog of the Pc3 phosphoproteins, in the presense of Mg(ii), was characterized to determine whether it is chemically possible for the natural adhesive components to be packaged and stored as liquid complex coacervates. Of several multivalent metal salts tested, only MgCl induced complex coacervation of the phospho-copolymer. Complex coacervates formed at Mg/P ratios from 0.5-8, and in [NaCl]s from 0-3 M. At low temperature and pH, the complex coacervates were clear and homogeneous. At higher temperatures and pH, the coacervate phases were translucent. The elastic and viscous moduli initially decreased as temperature increased, but then increased significantly near the temperature boundary between clear and translucent forms. A mechanism is proposed in which relatively weak, ionic strength-independent, outer shell crossbridging of -PO32- sidechains by Mg[H2O]62+ complex ions is responsible for the clear homogeneous lower viscosity coacervate form. At higher temperature and pH, displacement of inner shell H2O molecules by phosphate O- ligands creates stronger crossbridges, additional dehydration, and more viscous coacervates. The results demonstrate that Pc3 phosphoproteins can exist as condensed phospho/Mg(ii) complex coacervates under conditions expected in the adhesive glands of sandcastle worms in their natural environment. Considering the common regulatory role of phosphorylation and the intracellular abundance of Mg2+ it is possible that soft bridging of phosphate groups by Mg[H2O]n2+ may promote other regulated cellular liquid liquid phase separation phenomena.
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Affiliation(s)
- In Taek Song
- Department of Bioengineering, University of Utah, 20 S. 2030 East, Salt Lake City, UT 84112, USA.
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22
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Montero de Espinosa L, Meesorn W, Moatsou D, Weder C. Bioinspired Polymer Systems with Stimuli-Responsive Mechanical Properties. Chem Rev 2017; 117:12851-12892. [DOI: 10.1021/acs.chemrev.7b00168] [Citation(s) in RCA: 228] [Impact Index Per Article: 32.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
| | - Worarin Meesorn
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700 Fribourg, Switzerland
| | - Dafni Moatsou
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700 Fribourg, Switzerland
| | - Christoph Weder
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700 Fribourg, Switzerland
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23
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Li X, Zhao Y, Li D, Zhang G, Long S, Wang H. Hybrid dual crosslinked polyacrylic acid hydrogels with ultrahigh mechanical strength, toughness and self-healing properties via soaking salt solution. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.05.070] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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24
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Sustained tobramycin release from polyphosphate double network hydrogels. Acta Biomater 2017; 50:484-492. [PMID: 27993638 DOI: 10.1016/j.actbio.2016.12.030] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Revised: 12/07/2016] [Accepted: 12/13/2016] [Indexed: 11/22/2022]
Abstract
Sustained local delivery of antibiotics from a drug reservoir to treat or prevent bacterial infections can avoid many of the drawbacks of systemic administration of antibiotics. Prolonged local release of high concentrations of antibiotics may also be more effective at treating bacteria in established biofilm populations that are resistant to systemic antibiotics. A double network hydrogel comprising an organic polyphosphate pre-polymer network polymerized within a polyacrylamide network de-swelled to about 50% of its initial volume when the polyphosphate network was crosslinked with polycationic tobramycin, an aminoglycoside antibiotic. The antibiotic-loaded hydrogels contained approximately 200mg/ml of tobramycin. The hydrogels continuously released daily amounts of tobramycin above the Pseudomonas aeruginosa minimal bactericidal concentration for greater than 50days, over the pH range 6.0-8.0, and completely eradicated established P. aeruginosa biofilms within 72h in a flow cell bioreactor. The presence of physiological concentrations of Mg2+ and Ca2+ ions doubled the cumulative release over 60days. The polyphosphate hydrogels show promise as materials for sustained localized tobramycin delivery to prevent post-operative P. aeruginosa infections including infections established in biofilms. STATEMENT OF SIGNIFICANCE Polyphosphate hydrogels were loaded with high concentrations of tobramycin. The hydrogels provided sustained release of bactericidal concentrations of tobramycin for 50days, and were capable of completely eradicating P. aeruginosa in established biofilms. The hydrogels have potential for localized prevention or treatment of P. aeruginosa infections.
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25
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Abstract
Silk is a protein-based material which is predominantly produced by insects and spiders. Hundreds of millions of years of evolution have enabled these animals to utilize different, highly adapted silk types in a broad variety of applications. Silk occurs in several morphologies, such as sticky glue or in the shape of fibers and can, depending on the application by the respective animal, dissipate a high mechanical energy, resist heat and radiation, maintain functionality when submerged in water and withstand microbial settling. Hence, it's unsurprising that silk piqued human interest a long time ago, which catalyzed the domestication of silkworms for the production of silk to be used in textiles. Recently, scientific progress has enabled the development of analytic tools to gain profound insights into the characteristics of silk proteins. Based on these investigations, the biotechnological production of artificial and engineered silk has been accomplished, which allows the production of a sufficient amount of silk materials for several industrial applications. This chapter provides a review on the biotechnological production of various silk proteins from different species, as well as on the processing techniques to fabricate application-oriented material morphologies.
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Affiliation(s)
- Gregor Lang
- Research Group Biopolymer Processing, University of Bayreuth, Universitätsstr. 30, 95440, Bayreuth, Germany
| | - Heike Herold
- Department of Biomaterials, University of Bayreuth, Universitätsstr. 30, 95440, Bayreuth, Germany
| | - Thomas Scheibel
- Department of Biomaterials, University of Bayreuth, Universitätsstr. 30, 95440, Bayreuth, Germany.
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26
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Zhang X, Tang Z, Guo B, Zhang L. Enabling Design of Advanced Elastomer with Bioinspired Metal-Oxygen Coordination. ACS APPLIED MATERIALS & INTERFACES 2016; 8:32520-32527. [PMID: 27933856 DOI: 10.1021/acsami.6b10881] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
It poses a huge challenge to expand the application gallery of rubbers into advanced smart materials and achieve the reinforcement simultaneously. In the present work, inspired by the metal-ligand complexations of mussel byssus, ferric ion was introduced into an oxygen-abundant rubber network to create additional metal-oxygen coordination cross-links. Such complexation has been revealed to be highly efficient in enhancing the strength and toughness of the rubbers. Significantly, such complexation also enables the functionalization of the rubber into highly damping or excellent multishape memory materials. We envision that the present work offers an efficient yet facile way of creating advanced elastomers based on industrially available diene-based rubber.
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Affiliation(s)
- Xuhui Zhang
- Department of Polymer Materials and Engineering, South China University of Technology , Guangzhou 510640, China
| | - Zhenghai Tang
- Department of Polymer Materials and Engineering, South China University of Technology , Guangzhou 510640, China
| | - Baochun Guo
- Department of Polymer Materials and Engineering, South China University of Technology , Guangzhou 510640, China
| | - Liqun Zhang
- State Key Laboratory of Organic and Inorganic Composites, Beijing University of Chemical Technology , Beijing 100029, China
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27
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Hu Y, Han W, Huang G, Zhou W, Yang Z, Wang C. Highly Stretchable, Mechanically Strong, Tough, and Self-Recoverable Nanocomposite Hydrogels by Introducing Strong Ionic Coordination Interactions. MACROMOL CHEM PHYS 2016. [DOI: 10.1002/macp.201600398] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Yang Hu
- College of Materials and Energy; South China Agricultural University; Guangzhou 510642 China
- Research Institute of Materials Science; South China University of Technology; Guangzhou 510640 China
| | - Wenfang Han
- College of Food Science and Technology; Huazhong Agricultural University; Wuhan 430070 China
| | - Guanhua Huang
- College of Materials and Energy; South China Agricultural University; Guangzhou 510642 China
| | - Wuyi Zhou
- College of Materials and Energy; South China Agricultural University; Guangzhou 510642 China
| | - Zhuohong Yang
- College of Materials and Energy; South China Agricultural University; Guangzhou 510642 China
| | - Chaoyang Wang
- Research Institute of Materials Science; South China University of Technology; Guangzhou 510640 China
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28
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Wang CS, Pan H, Weerasekare GM, Stewart RJ. Peroxidase-catalysed interfacial adhesion of aquatic caddisworm silk. J R Soc Interface 2016; 12:rsif.2015.0710. [PMID: 26490632 DOI: 10.1098/rsif.2015.0710] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Casemaker caddisfly (Hesperophylax occidentalis) larvae use adhesive silk fibres to construct protective shelters under water. The silk comprises a distinct peripheral coating on a viscoelastic fibre core. Caddisworm silk peroxinectin (csPxt), a haem-peroxidase, was shown to be glycosylated by lectin affinity chromatography and tandem mass spectrometry. Using high-resolution H2O2 and peroxidase-dependent silver ion reduction and nanoparticle deposition, imaged by electron microscopy, csPxt activity was shown to be localized in the peripheral layer of drawn silk fibres. CsPxt catalyses dityrosine cross-linking within the adhesive peripheral layer post-draw, initiated perhaps by H2O2 generated by a silk gland-specific superoxide dismutase 3 (csSOD3) from environmental reactive oxygen species present in natural water. CsSOD3 was also shown to be a glycoprotein and is likely localized in the peripheral layer. Using a synthetic fluorescent phenolic copolymer and confocal microscopy, it was shown that csPxt catalyses oxidative cross-linking to external polyphenolic compounds capable of diffusive interpenetration into the fuzzy peripheral coating, including humic acid, a natural surface-active polyphenol. The results provide evidence of enzyme-mediated covalent cross-linking of a natural bioadhesive to polyphenol conditioned interfaces as a mechanism of permanent adhesion underwater.
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Affiliation(s)
- Ching-Shuen Wang
- Department of Bioengineering, University of Utah, Salt Lake City, UT 84112, USA
| | - Huaizhong Pan
- Department of Bioengineering, University of Utah, Salt Lake City, UT 84112, USA
| | | | - Russell J Stewart
- Department of Bioengineering, University of Utah, Salt Lake City, UT 84112, USA
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29
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Hu Y, Du Z, Deng X, Wang T, Yang Z, Zhou W, Wang C. Dual Physically Cross-Linked Hydrogels with High Stretchability, Toughness, and Good Self-Recoverability. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b00584] [Citation(s) in RCA: 168] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Yang Hu
- Research
Institute of Materials Science, South China University of Technology, Guangzhou 510640, China
- Institute
of Biomaterials, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China
| | - Zhengshan Du
- Research
Institute of Materials Science, South China University of Technology, Guangzhou 510640, China
| | - Xiaolan Deng
- Research
Institute of Materials Science, South China University of Technology, Guangzhou 510640, China
| | - Tao Wang
- Research
Institute of Materials Science, South China University of Technology, Guangzhou 510640, China
| | - Zhuohong Yang
- Institute
of Biomaterials, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China
| | - Wuyi Zhou
- Institute
of Biomaterials, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China
| | - Chaoyang Wang
- Research
Institute of Materials Science, South China University of Technology, Guangzhou 510640, China
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30
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Ashton NN, Pan H, Stewart RJ. Connecting caddisworm silk structure and mechanical properties: combined infrared spectroscopy and mechanical analysis. Open Biol 2016; 6:160067. [PMID: 27278649 PMCID: PMC4929942 DOI: 10.1098/rsob.160067] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Accepted: 05/16/2016] [Indexed: 11/29/2022] Open
Abstract
The underwater silk of an aquatic casemaking caddisfly larvae (Hesperophylax occidentalis) is viscoelastic, and displays distinct yield behaviour, large strain cycle hysteresis and near complete recovery of its initial strength and stiffness when unloaded. Yield followed by a stress plateau has been attributed to sequential rupture of serial Ca(2+)-cross-linked phosphoserine (pS) β-domains. Spontaneous recovery has been attributed to refolding of the Ca(2+)/pS domains powered by an elastic network. In this study, native Ca(2+) ions were exchanged with other metal ions, followed by combined mechanical and FTIR analysis to probe the contribution of pS/metal ion complexes to silk mechanical properties. After exchange of Ca(2+) with Na(+), the fibres are soft elastomers and the infrared spectra are consistent with Cv3 symmetry of the -[Formula: see text] groups. Multivalent metal ions decreased the -[Formula: see text] symmetry and the symmetric stretching modes (vs) split in a manner characteristic of ordered phosphate compounds, such as phosphate minerals and lamellar bilayers of phosphatidic acid lipids. Integrated intensities of the vs bands, indicative of the metal ion's effect on transition dipole moment of the P-O bonds, and thereby the strength of the phosphate metal complex, increased in the order: Na(+) < Mg(2+) < Sr(2+) < Ba(2+) < Ca(2+) < Eu(3+) < La(3+) < Zn(2+) < Fe(2+) With a subset of the metal ion series, the initial stiffness and yield stress of metal ion-exchanged fibres increased in the same order: [Formula: see text] [Formula: see text] establishing the link between phosphate transition dipole moments and silk fibre strength.
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Affiliation(s)
- Nicholas N Ashton
- Department of Bioengineering, University of Utah, Salt Lake City, Utah 84112, USA
| | - Huaizhong Pan
- Department of Bioengineering, University of Utah, Salt Lake City, Utah 84112, USA
| | - Russell J Stewart
- Department of Bioengineering, University of Utah, Salt Lake City, Utah 84112, USA
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31
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Brooks AE. The Potential of Silk and Silk-Like Proteins as Natural Mucoadhesive Biopolymers for Controlled Drug Delivery. Front Chem 2015; 3:65. [PMID: 26636069 PMCID: PMC4659904 DOI: 10.3389/fchem.2015.00065] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2015] [Accepted: 11/09/2015] [Indexed: 11/13/2022] Open
Abstract
Drug delivery across mucus membranes is a particularly effective route of administration due to the large surface area. However, the unique environment present at the mucosa necessitates altered drug formulations designed to (1) deliver sensitive biologic molecules, (2) promote intimate contact between the mucosa and the drug, and (3) prolong the drug's local residence time. Thus, the pharmaceutical industry has an interest in drug delivery systems formulated around the use of mucoadhesive polymers. Mucoadhesive polymers, both synthetic and biological, have a history of use in local drug delivery. Prominently featured in the literature are chitosan, alginate, and cellulose derivatives. More recently, silk and silk-like derivatives have been explored for their potential as mucoadhesive polymers. Both silkworms and spiders produce sticky silk-like glue substances, sericin and aggregate silk respectively, that may prove an effective, natural matrix for drug delivery to the mucosa. This mini review will explore the potential of silk and silk-like derivatives as a biocompatible mucoadhesive polymer matrix for local controlled drug delivery.
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Affiliation(s)
- Amanda E Brooks
- Department of Pharmaceutical Sciences, North Dakota State University Fargo, ND, USA
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