1
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Simmons M, Horbelt N, Sverko T, Scoppola E, Jackson DJ, Harrington MJ. Invasive mussels fashion silk-like byssus via mechanical processing of massive horizontally acquired coiled coils. Proc Natl Acad Sci U S A 2023; 120:e2311901120. [PMID: 37983489 PMCID: PMC10691215 DOI: 10.1073/pnas.2311901120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Accepted: 10/11/2023] [Indexed: 11/22/2023] Open
Abstract
Zebra and quagga mussels (Dreissena spp.) are invasive freshwater biofoulers that perpetrate devastating economic and ecological impact. Their success depends on their ability to anchor onto substrates with protein-based fibers known as byssal threads. Yet, compared to other mussel lineages, little is understood about the proteins comprising their fibers or their evolutionary history. Here, we investigated the hierarchical protein structure of Dreissenid byssal threads and the process by which they are fabricated. Unique among bivalves, we found that threads possess a predominantly β-sheet crystalline structure reminiscent of spider silk. Further analysis revealed unexpectedly that the Dreissenid thread protein precursors are mechanoresponsive α-helical proteins that are mechanically processed into β-crystallites during thread formation. Proteomic analysis of the byssus secretory organ and byssus fibers revealed a family of ultrahigh molecular weight (354 to 467 kDa) asparagine-rich (19 to 20%) protein precursors predicted to form α-helical coiled coils. Moreover, several independent lines of evidence indicate that the ancestral predecessor of these proteins was likely acquired via horizontal gene transfer. This chance evolutionary event that transpired at least 12 Mya has endowed Dreissenids with a distinctive and effective fiber formation mechanism, contributing significantly to their success as invasive species and possibly, inspiring new materials design.
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Affiliation(s)
- Miriam Simmons
- Department of Chemistry, McGill University, Montreal, QCH3A 0B8, Canada
| | - Nils Horbelt
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Potsdam14476, Germany
| | - Tara Sverko
- Department of Chemistry, McGill University, Montreal, QCH3A 0B8, Canada
| | - Ernesto Scoppola
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Potsdam14476, Germany
| | - Daniel J. Jackson
- Department of Geobiology, Geoscience Center, University of Göttingen, Göttingen37077, Germany
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2
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Sivasundarampillai J, Youssef L, Priemel T, Mikulin S, Eren ED, Zaslansky P, Jehle F, Harrington MJ. A strong quick-release biointerface in mussels mediated by serotonergic cilia-based adhesion. Science 2023; 382:829-834. [PMID: 37972188 DOI: 10.1126/science.adi7401] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 09/29/2023] [Indexed: 11/19/2023]
Abstract
The mussel byssus stem provides a strong and compact mechanically mismatched biointerface between living tissue and a nonliving biopolymer. Yet, in a poorly understood process, mussels can simply jettison their entire byssus, rebuilding a new one in just hours. We characterized the structure and composition of the byssus biointerface using histology, confocal Raman mapping, phase contrast-enhanced microcomputed tomography, and advanced electron microscopy, revealing a sophisticated junction consisting of abiotic biopolymer sheets interdigitated between living extracellular matrix. The sheet surfaces are in intimate adhesive contact with billions of motile epithelial cilia that control biointerface strength and stem release through their collective movement, which is regulated neurochemically. We posit that this may involve a complex sensory pathway by which sessile mussels respond to environmental stresses to release and relocate.
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Affiliation(s)
- Jenaes Sivasundarampillai
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
| | - Lucia Youssef
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
| | - Tobias Priemel
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
| | - Sydney Mikulin
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
| | - E Deniz Eren
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
| | - Paul Zaslansky
- Department for Operative, Preventive and Pediatric Dentistry, Charité-Universitätsmedizin Berlin, Berlin 14197, Germany
| | - Franziska Jehle
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Matthew J Harrington
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
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3
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Poulhazan A, Baer A, Daliaho G, Mentink-Vigier F, Arnold AA, Browne DC, Hering L, Archer-Hartmann S, Pepi LE, Azadi P, Schmidt S, Mayer G, Marcotte I, Harrington MJ. Peculiar Phosphonate Modifications of Velvet Worm Slime Revealed by Advanced Nuclear Magnetic Resonance and Mass Spectrometry. J Am Chem Soc 2023; 145:20749-20754. [PMID: 37722679 PMCID: PMC10540779 DOI: 10.1021/jacs.3c06798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Indexed: 09/20/2023]
Abstract
Nature is rich with examples of highly specialized biological materials produced by organisms for functions, including defense, hunting, and protection. Along these lines, velvet worms (Onychophora) expel a protein-based slime used for hunting and defense that upon shearing and dehydration forms fibers as stiff as thermoplastics. These fibers can dissolve back into their precursor proteins in water, after which they can be drawn into new fibers, providing biological inspiration to design recyclable materials. Elevated phosphorus content in velvet worm slime was previously observed and putatively ascribed to protein phosphorylation. Here, we show instead that phosphorus is primarily present as phosphonate moieties in the slime of distantly related velvet worm species. Using high-resolution nuclear magnetic resonance (NMR), natural abundance dynamic nuclear polarization (DNP), and mass spectrometry (MS), we demonstrate that 2-aminoethyl phosphonate (2-AEP) is associated with glycans linked to large slime proteins, while transcriptomic analyses confirm the expression of 2-AEP synthesizing enzymes in slime glands. The evolutionary conservation of this rare protein modification suggests an essential functional role of phosphonates in velvet worm slime and should stimulate further study of the function of this unusual chemical modification in nature.
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Affiliation(s)
- Alexandre Poulhazan
- Department
of Chemistry, Université du Québec
à Montréal, Montreal, Quebec H2X 2J6, Canada
| | - Alexander Baer
- Department
of Zoology, Institute of Biology, University
of Kassel, Kassel D-34132, Germany
| | - Gagan Daliaho
- Department
of Chemistry, McGill University, Montreal, Quebec H3A 0B8, Canada
| | | | - Alexandre A. Arnold
- Department
of Chemistry, Université du Québec
à Montréal, Montreal, Quebec H2X 2J6, Canada
| | - Darren C. Browne
- Department
of Biological and Chemical Sciences, University
of the West Indies, Cave Hill Campus, Barbados BB11000, West Indies
| | - Lars Hering
- Department
of Zoology, Institute of Biology, University
of Kassel, Kassel D-34132, Germany
| | | | - Lauren E. Pepi
- Complex
Carbohydrate Research Center, University
of Georgia, Athens, Georgia 30602, United States
| | - Parastoo Azadi
- Complex
Carbohydrate Research Center, University
of Georgia, Athens, Georgia 30602, United States
| | - Stephan Schmidt
- Chemistry
Department, Heinrich-Heine-Universität
Düsseldorf, Düsseldorf D-40225, Germany
| | - Georg Mayer
- Department
of Zoology, Institute of Biology, University
of Kassel, Kassel D-34132, Germany
| | - Isabelle Marcotte
- Department
of Chemistry, Université du Québec
à Montréal, Montreal, Quebec H2X 2J6, Canada
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Rammal M, Li C, Reeves J, Moraes C, Harrington MJ. pH-Responsive Reversible Granular Hydrogels Based on Metal-Binding Mussel-Inspired Peptides. ACS Appl Mater Interfaces 2023. [PMID: 37289097 DOI: 10.1021/acsami.3c06013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Taking advantage of their thixotropic behavior, microporosity, and modular properties, granular hydrogels formed from jammed hydrogel microparticles have emerged as an exciting class of soft, injectable materials useful for numerous applications, ranging from the production of biomedical scaffolds for tissue repair to the therapeutic delivery of drugs and cells. Recently, the annealing of hydrogel microparticles in situ to yield a porous bulk scaffold has shown numerous benefits in regenerative medicine, including tissue-repair applications. Current annealing techniques, however, mainly rely either on covalent connections, which produce static scaffolds, or transient supramolecular interactions, which produce dynamic but mechanically weak hydrogels. To address these limitations, we developed microgels functionalized with peptides inspired by the histidine-rich cross-linking domains of marine mussel byssus proteins. Functionalized microgels can reversibly aggregate in situ via metal coordination cross-linking to form microporous, self-healing, and resilient scaffolds at physiological conditions by inclusion of minimal amounts of zinc ions at basic pH. Aggregated granular hydrogels can subsequently be dissociated in the presence of a metal chelator or under acidic conditions. Based on the demonstrated cytocompatibility of these annealed granular hydrogel scaffolds, we believe that these materials could be developed toward applications in regenerative medicine and tissue engineering.
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Affiliation(s)
- Mostafa Rammal
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
| | - Chen Li
- Department of Chemical Engineering, McGill University, 3610 Rue University Montreal, Québec H3A 0C5, Canada
| | - James Reeves
- Department of Chemical Engineering, McGill University, 3610 Rue University Montreal, Québec H3A 0C5, Canada
| | - Christopher Moraes
- Department of Chemical Engineering, McGill University, 3610 Rue University Montreal, Québec H3A 0C5, Canada
| | - Matthew J Harrington
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
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Baer A, Hoffmann I, Mahmoudi N, Poulhazan A, Harrington MJ, Mayer G, Schmidt S, Schneck E. The Internal Structure of the Velvet Worm Projectile Slime: A Small-Angle Scattering Study. Small 2023; 19:e2300516. [PMID: 36828797 DOI: 10.1002/smll.202300516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 02/03/2023] [Indexed: 06/02/2023]
Abstract
For prey capture and defense, velvet worms eject an adhesive slime which has been established as a model system for recyclable complex liquids. Triggered by mechanical agitation, the liquid bio-adhesive rapidly transitions into solid fibers. In order to understand this mechanoresponsive behavior, here, the nanostructural organization of slime components are studied using small-angle scattering with neutrons and X-rays. The scattering intensities are successfully described with a three-component model accounting for proteins of two dominant molecular weight fractions and nanoscale globules. In contrast to the previous assumption that high molecular weight proteins-the presumed building blocks of the fiber core-are contained in the nanoglobules, it is found that the majority of slime proteins exist freely in solution. Only less than 10% of the slime proteins are contained in the nanoglobules, necessitating a reassessment of their function in fiber formation. Comparing scattering data of slime re-hydrated with light and heavy water reveals that the majority of lipids in slime are contained in the nanoglobules with homogeneous distribution. Vibrating mechanical impact under exclusion of air neither leads to formation of fibers nor alters the bulk structure of slime significantly, suggesting that interfacial phenomena and directional shearing are required for fiber formation.
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Affiliation(s)
- Alexander Baer
- Department of Zoology, Institute of Biology, University of Kassel, D-34132, Kassel, Germany
| | - Ingo Hoffmann
- Spectroscopy Group, Institut Laue-Langevin, 38000, Grenoble, France
| | - Najet Mahmoudi
- Small-Angle Neutron Scattering Group, ISIS Neutron & Muon Source, STFC Rutherford Appleton Laboratory, Didcot, OX11 0QX, UK
| | - Alexandre Poulhazan
- Department of Chemistry, University of Quebec at Montreal, Montreal, QC, H2X 2J6, Canada
| | | | - Georg Mayer
- Department of Zoology, Institute of Biology, University of Kassel, D-34132, Kassel, Germany
| | - Stephan Schmidt
- Chemistry Department, Heinrich-Heine-Universität Düsseldorf, D-40225, Düsseldorf, Germany
| | - Emanuel Schneck
- Physics Department, Technische Universität Darmstadt, D-64289, Darmstadt, Germany
- Biomaterials Department, Max Planck Institute of Colloids and Interfaces, D-14476, Potsdam, Germany
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6
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Lachance‐Brais C, Rammal M, Asohan J, Katolik A, Luo X, Saliba D, Jonderian A, Damha MJ, Harrington MJ, Sleiman HF. Small Molecule-Templated DNA Hydrogel with Record Stiffness Integrates and Releases DNA Nanostructures and Gene Silencing Nucleic Acids. Adv Sci (Weinh) 2023; 10:e2205713. [PMID: 36752390 PMCID: PMC10131789 DOI: 10.1002/advs.202205713] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Revised: 11/18/2022] [Indexed: 05/31/2023]
Abstract
Deoxyribonucleic acid (DNA) hydrogels are a unique class of programmable, biocompatible materials able to respond to complex stimuli, making them valuable in drug delivery, analyte detection, cell growth, and shape-memory materials. However, unmodified DNA hydrogels in the literature are very soft, rarely reaching a storage modulus of 103 Pa, and they lack functionality, limiting their applications. Here, a DNA/small-molecule motif to create stiff hydrogels from unmodified DNA, reaching 105 Pa in storage modulus is used. The motif consists of an interaction between polyadenine and cyanuric acid-which has 3-thymine like faces-into multimicrometer supramolecular fibers. The mechanical properties of these hydrogels are readily tuned, they are self-healing and thixotropic. They integrate a high density of small, nontoxic molecules, and are functionalized simply by varying the molecule sidechain. They respond to three independent stimuli, including a small molecule stimulus. These stimuli are used to integrate and release DNA wireframe and DNA origami nanostructures within the hydrogel. The hydrogel is applied as an injectable delivery vector, releasing an antisense oligonucleotide in cells, and increasing its gene silencing efficacy. This work provides tunable, stimuli-responsive, exceptionally stiff all-DNA hydrogels from simple sequences, extending these materials' capabilities.
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Affiliation(s)
| | - Mostafa Rammal
- Department of ChemistryMcGill University801 Sherbrooke St WMontrealH3A 0B8Canada
| | - Jathavan Asohan
- Department of ChemistryMcGill University801 Sherbrooke St WMontrealH3A 0B8Canada
| | - Adam Katolik
- Department of ChemistryMcGill University801 Sherbrooke St WMontrealH3A 0B8Canada
| | - Xin Luo
- Department of ChemistryMcGill University801 Sherbrooke St WMontrealH3A 0B8Canada
| | - Daniel Saliba
- Department of ChemistryMcGill University801 Sherbrooke St WMontrealH3A 0B8Canada
| | - Antranik Jonderian
- Department of ChemistryMcGill University801 Sherbrooke St WMontrealH3A 0B8Canada
| | - Masad J. Damha
- Department of ChemistryMcGill University801 Sherbrooke St WMontrealH3A 0B8Canada
| | | | - Hanadi F. Sleiman
- Department of ChemistryMcGill University801 Sherbrooke St WMontrealH3A 0B8Canada
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Abstract
There is an urgent need to improve the sustainability of the materials we produce and use. Here, we explore what humans can learn from nature about how to sustainably fabricate polymeric fibers with excellent material properties by reviewing the physical and chemical aspects of materials processing distilled from diverse model systems, including spider silk, mussel byssus, velvet worm slime, hagfish slime, and mistletoe viscin. We identify common and divergent strategies, highlighting the potential for bioinspired design and technology transfer. Despite the diversity of the biopolymeric fibers surveyed, we identify several common strategies across multiple systems, including: (1) use of stimuli-responsive biomolecular building blocks, (2) use of concentrated fluid precursor phases (e.g., coacervates and liquid crystals) stored under controlled chemical conditions, and (3) use of chemical (pH, salt concentration, redox chemistry) and physical (mechanical shear, extensional flow) stimuli to trigger the transition from fluid precursor to solid material. Importantly, because these materials largely form and function outside of the body of the organisms, these principles can more easily be transferred for bioinspired design in synthetic systems. We end the review by discussing ongoing efforts and challenges to mimic biological model systems, with a particular focus on artificial spider silks and mussel-inspired materials.
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Affiliation(s)
- Anna Rising
- Department of Biosciences and Nutrition, Karolinska Institutet, Huddinge 141 52, Sweden.,Department of Anatomy, Physiology and Biochemistry, Swedish University of Agricultural Sciences, Uppsala 750 07, Sweden
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8
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Youssef L, Renner-Rao M, Eren ED, Jehle F, Harrington MJ. Fabrication of Tunable Mechanical Gradients by Mussels via Bottom-Up Self-Assembly of Collagenous Precursors. ACS Nano 2023; 17:2294-2305. [PMID: 36657382 DOI: 10.1021/acsnano.2c08801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Functionally graded interfaces are prominent in biological tissues and are used to mitigate stress concentrations at junctions between mechanically dissimilar components. Biological mechanical gradients serve as important role models for bioinspired design in technically and biomedically relevant applications. However, this necessitates elucidating exactly how natural gradients mitigate mechanical mismatch and how such gradients are fabricated. Here, we applied a cross-disciplinary experimental approach to understand structure, function, and formation of mechanical gradients in byssal threads─collagen-based fibers used by marine mussels to anchor on hard surfaces. The proximal end of threads is approximately 50-fold less stiff and twice as extensible as the distal end. However, the hierarchical structure of the distal-proximal junction is still not fully elucidated, and it is unclear how it is formed. Using tensile testing coupled with video extensometry, confocal Raman spectroscopy, and transmission electron microscopy on native threads, we identified a continuous graded transition in mechanics, composition, and nanofibrillar morphology, which extends several hundreds of microns and which can vary significantly between individual threads. Furthermore, we performed in vitro fiber assembly experiments using purified secretory vesicles from the proximal and distal regions of the secretory glands (which contain different precursor proteins), revealing spontaneous self-assembly of distinctive distal- and proximal-like fiber morphologies. Aside from providing fundamental insights into the byssus structure, function, and fabrication, our findings reveal key design principles for bioinspired design of functionally graded polymeric materials.
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Affiliation(s)
- Lucia Youssef
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
| | - Max Renner-Rao
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
| | - Egemen Deniz Eren
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
| | - Franziska Jehle
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
| | - Matthew J Harrington
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
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Renner-Rao M, Jehle F, Priemel T, Duthoo E, Fratzl P, Bertinetti L, Harrington MJ. Mussels Fabricate Porous Glues via Multiphase Liquid-Liquid Phase Separation of Multiprotein Condensates. ACS Nano 2022; 16:20877-20890. [PMID: 36413745 DOI: 10.1021/acsnano.2c08410] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Mussels (Mytilus edulis) adhere to hard surfaces in intertidal marine habitats with a porous underwater glue called the byssus plaque. The plaque is an established role model for bioinspired underwater glues and comprises at least six proteins, most of which are highly cationic and enriched in the post-translationally modified amino acid 3,4-dihydroxyphenylalanine (DOPA). While much is known about the chemistry of plaque adhesion, less is understood about the natural plaque formation process. Here, we investigated plaque structure and formation using 3D electron microscopic imaging, revealing that micro- and nanopores form spontaneously during secretion of protein-filled secretory vesicles. To better understand this process, we developed a method to purify intact secretory vesicles for in vitro assembly studies. We discovered that each vesicle contains a sulfate-associated fluid condensate consisting of ∼9 histidine- and/or DOPA-rich proteins, which are presumably the required ingredients for building a plaque. Rupturing vesicles under specific buffering conditions relevant for natural assembly led to controlled multiphase liquid-liquid phase separation (LLPS) of different proteins, resulting in formation of a continuous phase with coexisting droplets. Rapid coarsening of the droplet phase was arrested through pH-dependent cross-linking of the continuous phase, producing native-like solid porous "microplaques" with droplet proteins remaining as fluid condensates within the pores. Results indicate that histidine deprotonation and sulfates figure prominently in condensate cross-linking. Distilled concepts suggest that combining phase separation with tunable cross-linking kinetics could be effective for microfabricating hierarchically porous materials via self-assembly.
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Affiliation(s)
- Max Renner-Rao
- Dept. of Chemistry, McGill University, Montreal, Quebec H4A 0B8, Canada
| | - Franziska Jehle
- Dept. of Chemistry, McGill University, Montreal, Quebec H4A 0B8, Canada
- Dept. of Biomaterials, Max Planck Institute of Colloids and Interfaces, Potsdam 14476, Germany
| | - Tobias Priemel
- Dept. of Chemistry, McGill University, Montreal, Quebec H4A 0B8, Canada
| | - Emilie Duthoo
- Dept. of Chemistry, McGill University, Montreal, Quebec H4A 0B8, Canada
- Biology of Marine Organisms and Biomimetics Unit, Research Institute for Biosciences, Mons 7000, Belgium
| | - Peter Fratzl
- Dept. of Biomaterials, Max Planck Institute of Colloids and Interfaces, Potsdam 14476, Germany
| | - Luca Bertinetti
- Dept. of Biomaterials, Max Planck Institute of Colloids and Interfaces, Potsdam 14476, Germany
- B CUBE - Center for Molecular Bioengineering, Technische Universität Dresden, Dresden 01307, Germany
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Khurshid B, Jackson DJ, Engilberge S, Motreuil S, Broussard C, Thomas J, Immel F, Harrington MJ, Crowley PB, Vielzeuf D, Perrin J, Marin F. Molecular characterization of accripin11, a soluble shell protein with an acidic C-terminus, identified in the prismatic layer of the Mediterranean fan mussel Pinna nobilis (Bivalvia, Pteriomorphia). FEBS Open Bio 2022; 13:10-25. [PMID: 36219517 PMCID: PMC9808598 DOI: 10.1002/2211-5463.13497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 08/23/2022] [Accepted: 10/10/2022] [Indexed: 01/07/2023] Open
Abstract
We have identified a novel shell protein, accripin11, as a major soluble component of the calcitic prisms of the fan mussel Pinna nobilis. Initially retrieved from a cDNA library, its full sequence is confirmed here by transcriptomic and proteomic approaches. The sequence of the mature protein is 103 residues with a theoretical molecular weight of 11 kDa and is moderately acidic (pI 6.74) except for its C-terminus which is highly enriched in aspartic acid. The protein exhibits a peculiar cysteine pattern in its central domain. The full sequence shares similarity with six other uncharacterized molluscan shell proteins from the orders Ostreida, Pteriida and Mytilida, all of which are pteriomorphids and produce a phylogenetically restricted pattern of nacro-prismatic shell microstructures. This suggests that accripin11 is a member of a family of clade-specific shell proteins. A 3D model of accripin11 was predicted with AlphaFold2, indicating that it possesses three short alpha helices and a disordered C-terminus. Recombinant accripin11 was tested in vitro for its ability to influence the crystallization of CaCO3 , while a polyclonal antibody was able to locate accripin11 to prismatic extracts, particularly in the acetic acid-soluble matrix. The putative functions of accripin11 are further discussed in relation to shell biomineralization.
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Affiliation(s)
- Benazir Khurshid
- Laboratoire Biogéosciences, UMR CNRS‐EPHE 6282Université de Bourgogne – Franche‐ComtéDijonFrance,Synchrotron SOLEILBeamline ANATOMIXGif‐sur‐YvetteFrance
| | | | - Sylvain Engilberge
- Structural Biology GroupEuropean Synchrotron Radiation FacilityGrenobleFrance
| | - Sébastien Motreuil
- Laboratoire Biogéosciences, UMR CNRS‐EPHE 6282Université de Bourgogne – Franche‐ComtéDijonFrance
| | | | - Jérôme Thomas
- Laboratoire Biogéosciences, UMR CNRS‐EPHE 6282Université de Bourgogne – Franche‐ComtéDijonFrance
| | - Françoise Immel
- Chrono‐Environnement, UMR 6249 CNRSUniversité de Bourgogne Franche‐ComtéBesançonFrance
| | | | - Peter B. Crowley
- School of Biological and Chemical SciencesNational University of IrelandGalwayIreland
| | | | | | - Frédéric Marin
- Laboratoire Biogéosciences, UMR CNRS‐EPHE 6282Université de Bourgogne – Franche‐ComtéDijonFrance
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Abdali Z, Renner-Rao M, Chow A, Cai A, Harrington MJ, Dorval Courchesne NM. Extracellular Secretion and Simple Purification of Bacterial Collagen from Escherichia coli. Biomacromolecules 2022; 23:1557-1568. [PMID: 35258298 DOI: 10.1021/acs.biomac.1c01191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Because of structural similarities with type-I animal collagen, recombinant bacterial collagen-like proteins have been progressively used as a source of collagen for biomaterial applications. However, the intracellular expression combined with current costly and time-consuming chromatography methods for purification makes the large-scale production of recombinant bacterial collagen challenging. Here, we report the use of an adapted secretion pathway, used natively byEscherichia colito secrete curli fibers, for extracellular secretion of the bacterial collagen. We confirmed that a considerable fraction of expressed collagen (∼70%) is being secreted freely into the extracellular medium, with an initial purity of ∼50% in the crude culture supernatant. To simplify the purification of extracellular collagen, we avoided cell lysis and used cross-flow filtration or acid precipitation to concentrate the voluminous supernatant and separate the collagen from impurities. We confirmed that the secreted collagen forms triple helical structures, using Sirius Red staining and circular dichroism. We also detected collagen biomarkers via Raman spectroscopy, further supporting that the recombinant collagen forms a stable triple helical conformation. We further studied the effect of the isolation methods on the morphology and secondary structure, concluding that the final collagen structure is process-dependent. Overall, we show that the curli secretion system can be adapted for extracellular secretion of the bacterial collagen, eliminating the need for cell lysis, which simplifies the collagen isolation process and enables a simple cost-effective method with potential for scale-up.
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Affiliation(s)
- Zahra Abdali
- Department of Chemical Engineering, McGill University, Montreal H3A 0C5, Quebec, Canada
| | - Max Renner-Rao
- Department of Chemistry, McGill University, Montreal H3A 0C5, Quebec, Canada
| | - Amy Chow
- Department of Chemical Engineering, McGill University, Montreal H3A 0C5, Quebec, Canada
| | - Anqi Cai
- Department of Chemical Engineering, McGill University, Montreal H3A 0C5, Quebec, Canada
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Horbelt N, Fratzl P, Harrington MJ. Mistletoe viscin: a hygro- and mechano-responsive cellulose-based adhesive for diverse material applications. PNAS Nexus 2022; 1:pgac026. [PMID: 36712808 PMCID: PMC9802232 DOI: 10.1093/pnasnexus/pgac026] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 01/07/2022] [Accepted: 03/09/2022] [Indexed: 04/23/2023]
Abstract
Mistletoe viscin is a natural cellulosic adhesive consisting of hierarchically organized cellulose microfibrils (CMFs) surrounded by a humidity-responsive matrix that enables mechanical drawing into stiff and sticky fibers. Here, we explored the processability and adhesive capacity of viscin and demonstrated its potential as a source material for various material applications, as well as a source for bioinspired design. Specifically, we revealed that viscin fibers exhibit humidity-activated self-adhesive properties that enable "contact welding" into complex 2D and 3D architectures under ambient conditions. We additionally discovered that viscin can be processed into stiff and transparent free-standing films via biaxial stretching in the hydrated state, followed by drying, whereby CMFs align along local stress fields. Furthermore, we determined that viscin adheres strongly to both synthetic materials (metals, plastics, and glass) and biological tissues, such as skin and cartilage. In particular, skin adhesion makes viscin a compelling candidate as a wound sealant, as we further demonstrate. These findings highlight the enormous potential of this hygro- and mechano-responsive fiber-reinforced adhesive for bioinspired and biomedical applications.
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Affiliation(s)
- Nils Horbelt
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Potsdam 14424, Germany
| | - Peter Fratzl
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Potsdam 14424, Germany
| | - Matthew J Harrington
- To whom correspondence should be addressed: Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada.
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13
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Waite JH, Harrington MJ. Following the thread: Mytilus mussel byssus as an inspired multi-functional biomaterial. CAN J CHEM 2021. [DOI: 10.1139/cjc-2021-0191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Over the last 15 years, the byssus of marine mussels (Mytilus spp.) has emerged as an important model system for the bio-inspired development and synthesis of advanced polymers and adhesives. But how did these seemingly inconsequential fibers that are routinely discarded in mussel hors d’oeuvres become the focus of intense international research. In the present review, we take a historical perspective to understand this phenomenon. Our purpose is not to review the sizeable literature of mussel-inspired materials, as there are numerous excellent reviews that cover this topic in great depth. Instead, we explore how the byssus became a magnet for bio-inspired materials science, with a focus on the specific breakthroughs in the understanding of composition, structure, function, and formation of the byssus achieved through fundamental scientific investigation. Extracted principles have led to bio-inspired design of novel materials with both biomedical and technical applications, including surgical adhesives, self-healing polymers, tunable hydrogels, and even actuated composites. Continued study into the byssus of Mytilid mussels and other species will provide a rich source of inspiration for years to come.
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Affiliation(s)
- J. Herbert Waite
- Marine Sciences Institute, Lagoon Road, University of California, Santa Barbara, CA 93106, USA
| | - Matthew J. Harrington
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, QC H3A 0B8, Canada
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14
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Priemel T, Palia G, Förste F, Jehle F, Sviben S, Mantouvalou I, Zaslansky P, Bertinetti L, Harrington MJ. Microfluidic-like fabrication of metal ion-cured bioadhesives by mussels. Science 2021; 374:206-211. [PMID: 34618575 DOI: 10.1126/science.abi9702] [Citation(s) in RCA: 74] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
[Figure: see text].
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Affiliation(s)
- Tobias Priemel
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
| | - Gurveer Palia
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
| | - Frank Förste
- Institute of Optics and Atomic Physics, Technische Universität Berlin, Hardenbergstrasse 36, 10623 Berlin, Germany
| | - Franziska Jehle
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada.,Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Sanja Sviben
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Ioanna Mantouvalou
- Institute of Optics and Atomic Physics, Technische Universität Berlin, Hardenbergstrasse 36, 10623 Berlin, Germany
| | - Paul Zaslansky
- Department for Restorative and Preventive Dentistry, Charité-Universitätsmedizin Berlin, 14197 Berlin, Germany
| | - Luca Bertinetti
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Matthew J Harrington
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
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15
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Amstad E, Harrington MJ. From vesicles to materials: bioinspired strategies for fabricating hierarchically structured soft matter. Philos Trans A Math Phys Eng Sci 2021; 379:20200338. [PMID: 34334030 DOI: 10.1098/rsta.2020.0338] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 02/10/2021] [Indexed: 06/13/2023]
Abstract
Certain organisms including species of mollusks, polychaetes, onychophorans and arthropods produce exceptional polymeric materials outside their bodies under ambient conditions using concentrated fluid protein precursors. While much is understood about the structure-function relationships that define the properties of such materials, comparatively less is understood about how such materials are fabricated and specifically, how their defining hierarchical structures are achieved via bottom-up assembly. Yet this information holds great potential for inspiring sustainable manufacture of advanced polymeric materials with controlled multi-scale structure. In the present perspective, we first examine recent work elucidating the formation of the tough adhesive fibres of the mussel byssus via secretion of vesicles filled with condensed liquid protein phases (coacervates and liquid crystals)-highlighting which design principles are relevant for bio-inspiration. In the second part of the perspective, we examine the potential of recent advances in drops and additive manufacturing as a bioinspired platform for mimicking such processes to produce hierarchically structured materials. This article is part of the theme issue 'Bio-derived and bioinspired sustainable advanced materials for emerging technologies (part 1)'.
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Affiliation(s)
- Esther Amstad
- Soft Materials Laboratory, Institute of Materials, École Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland
| | - Matthew J Harrington
- Dept. of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec, Canada H3A 0B8
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16
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Jehle F, Priemel T, Strauss M, Fratzl P, Bertinetti L, Harrington MJ. Collagen Pentablock Copolymers Form Smectic Liquid Crystals as Precursors for Mussel Byssus Fabrication. ACS Nano 2021; 15:6829-6838. [PMID: 33793207 DOI: 10.1021/acsnano.0c10457] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Protein-based biological materials are important role models for the design and fabrication of next generation advanced polymers. Marine mussels (Mytilus spp.) fabricate hierarchically structured collagenous fibers known as byssal threads via bottom-up supramolecular assembly of fluid protein precursors. The high degree of structural organization in byssal threads is intimately linked to their exceptional toughness and self-healing capacity. Here, we investigated the hypothesis that multidomain collagen precursor proteins, known as preCols, are stored in secretory vesicles as a colloidal liquid crystal (LC) phase prior to thread self-assembly. Using advanced electron microscopy methods, including scanning TEM and FIB-SEM, we visualized the detailed smectic preCol LC nanostructure in 3D, including various LC defects, confirming this hypothesis and providing quantitative insights into the mesophase structure. In light of these findings, we performed an in-depth comparative analysis of preCol protein sequences from multiple Mytilid species revealing that the smectic organization arises from an evolutionarily conserved ABCBA pentablock copolymer-like primary structure based on demarcations in hydropathy and charge distribution as well as terminal pH-responsive domains that trigger fiber formation. These distilled supramolecular assembly principles provide inspiration and strategies for sustainable assembly of nanostructured polymeric materials for potential applications in engineering and biomedical applications.
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Affiliation(s)
- Franziska Jehle
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
- Max Planck Institute of Colloids and Interfaces, Department of Biomaterials, Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Tobias Priemel
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
| | - Mike Strauss
- Department of Anatomy and Cell Biology, McGill University, 3640 University Street, Montreal, Quebec H3A 0C7, Canada
| | - Peter Fratzl
- Max Planck Institute of Colloids and Interfaces, Department of Biomaterials, Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Luca Bertinetti
- Max Planck Institute of Colloids and Interfaces, Department of Biomaterials, Am Mühlenberg 1, 14476 Potsdam, Germany
- BCUBE Center for Molecular Bioengineering, TU Dresden, Tatzberg 41, 01307 Dresden, Germany
| | - Matthew J Harrington
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
- Max Planck Institute of Colloids and Interfaces, Department of Biomaterials, Am Mühlenberg 1, 14476 Potsdam, Germany
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Cerullo AR, Lai TY, Allam B, Baer A, Barnes WJP, Barrientos Z, Deheyn DD, Fudge DS, Gould J, Harrington MJ, Holford M, Hung CS, Jain G, Mayer G, Medina M, Monge-Nájera J, Napolitano T, Espinosa EP, Schmidt S, Thompson EM, Braunschweig AB. Comparative Animal Mucomics: Inspiration for Functional Materials from Ubiquitous and Understudied Biopolymers. ACS Biomater Sci Eng 2020; 6:5377-5398. [DOI: 10.1021/acsbiomaterials.0c00713] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Antonio R. Cerullo
- The PhD Program in Biochemistry, Graduate Center of the City University of New York, 365 Fifth Avenue, New York, New York 10016, United States
- The Advanced Science Research Center, Graduate Center of the City University of New York, 85 St. Nicholas Terrace, New York, New York 10031, United States
- Department of Chemistry and Biochemistry, Hunter College, 695 Park Avenue, New York, New York 10065, United States
| | - Tsoi Ying Lai
- The Advanced Science Research Center, Graduate Center of the City University of New York, 85 St. Nicholas Terrace, New York, New York 10031, United States
| | - Bassem Allam
- School of Marine and Atmospheric Sciences, Stony Brook University, Stony Brook, New York 11794-5000, United States
| | - Alexander Baer
- Department of Zoology, Institute of Biology, University of Kassel, Heinrich-Plett-Strasse 40, 34132 Kassel, Germany
| | - W. Jon P. Barnes
- Centre for Cell Engineering, Joseph Black Building, University of Glasgow, Glasgow G12 8QQ, Scotland, U.K
| | - Zaidett Barrientos
- Laboratorio de Ecología Urbana, Universidad Estatal a Distancia, Mercedes de Montes de Oca, San José 474-2050, Costa Rica
| | - Dimitri D. Deheyn
- Marine Biology Research Division-0202, Scripps Institute of Oceanography, UCSD, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Douglas S. Fudge
- Schmid College of Science and Technology, Chapman University, 1 University Drive, Orange, California 92866, United States
| | - John Gould
- School of Environmental and Life Sciences, University of Newcastle, University Drive, Callaghan, New South Wales 2308, Australia
| | - Matthew J. Harrington
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
| | - Mandë Holford
- The PhD Program in Biochemistry, Graduate Center of the City University of New York, 365 Fifth Avenue, New York, New York 10016, United States
- Department of Chemistry and Biochemistry, Hunter College, 695 Park Avenue, New York, New York 10065, United States
- Department of Invertebrate Zoology, The American Museum of Natural History, New York, New York 10024, United States
- The PhD Program in Chemistry, Graduate Center of the City University of New York, 365 Fifth Avenue, New York, New York 10016, United States
- The PhD Program in Biology, Graduate Center of the City University of New York, 365 Fifth Avenue, New York, New York 10016, United States
| | - Chia-Suei Hung
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, Dayton, Ohio 45433, United States
| | - Gaurav Jain
- Schmid College of Science and Technology, Chapman University, 1 University Drive, Orange, California 92866, United States
| | - Georg Mayer
- Department of Zoology, Institute of Biology, University of Kassel, Heinrich-Plett-Strasse 40, 34132 Kassel, Germany
| | - Mónica Medina
- Department of Biology, Pennsylvania State University, 208 Mueller Lab, University Park, Pennsylvania 16802, United States
| | - Julian Monge-Nájera
- Laboratorio de Ecología Urbana, Universidad Estatal a Distancia, Mercedes de Montes de Oca, San José 474-2050, Costa Rica
| | - Tanya Napolitano
- The PhD Program in Biochemistry, Graduate Center of the City University of New York, 365 Fifth Avenue, New York, New York 10016, United States
- Department of Chemistry and Biochemistry, Hunter College, 695 Park Avenue, New York, New York 10065, United States
| | - Emmanuelle Pales Espinosa
- School of Marine and Atmospheric Sciences, Stony Brook University, Stony Brook, New York 11794-5000, United States
| | - Stephan Schmidt
- Institute of Organic and Macromolecular Chemistry, Heinrich-Heine-Universität Düsseldorf, Universitätsstrasse 1, 40225 Düsseldorf, Germany
| | - Eric M. Thompson
- Sars Centre for Marine Molecular Biology, Thormøhlensgt. 55, 5020 Bergen, Norway
- Department of Biological Sciences, University of Bergen, N-5006 Bergen, Norway
| | - Adam B. Braunschweig
- The PhD Program in Biochemistry, Graduate Center of the City University of New York, 365 Fifth Avenue, New York, New York 10016, United States
- The Advanced Science Research Center, Graduate Center of the City University of New York, 85 St. Nicholas Terrace, New York, New York 10031, United States
- Department of Chemistry and Biochemistry, Hunter College, 695 Park Avenue, New York, New York 10065, United States
- The PhD Program in Chemistry, Graduate Center of the City University of New York, 365 Fifth Avenue, New York, New York 10016, United States
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18
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Song G, Delroisse J, Schoenaers D, Kim H, Nguyen TC, Horbelt N, Leclère P, Hwang DS, Harrington MJ, Flammang P. Structure and composition of the tunic in the sea pineapple Halocynthia roretzi: A complex cellulosic composite biomaterial. Acta Biomater 2020; 111:290-301. [PMID: 32438110 DOI: 10.1016/j.actbio.2020.04.038] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 04/20/2020] [Accepted: 04/21/2020] [Indexed: 01/01/2023]
Abstract
Biological organisms produce high-performance composite materials, such as bone, wood and insect cuticle, which provide inspiration for the design of novel materials. Ascidians (sea squirts) produce an organic exoskeleton, known as a tunic, which has been studied quite extensively in several species. However, currently, there are still gaps in our knowledge about the detailed structure and composition of this cellulosic biocomposite. Here, we investigate the composition and hierarchical structure of the tough tunic from the species Halocynthia roretzi, through a cross-disciplinary approach combining traditional histology, immunohistochemistry, vibrational spectroscopy, X-ray diffraction, and atomic force and electron microscopies. The picture emerging is that the tunic of H. roretzi is a hierarchically-structured composite of cellulose and proteins with several compositionally and structurally distinct zones. At the surface is a thin sclerotized cuticular layer with elevated composition of protein containing halogenated amino acids and cross-linked via dityrosine linkages. The fibrous layer makes up the bulk of the tunic and is comprised primarily of helicoidally-ordered crystalline cellulose fibres with a lower protein content. The subcuticular zone directly beneath the surface contains much less organized cellulose fibres. Given current efforts to utilize biorenewable cellulose sources for the sustainable production of bio-inspired composites, these insights establish the tunic of H. roretzi as an exciting new archetype for extracting relevant design principles. STATEMENT OF SIGNIFICANCE: Tunicates are the only animals able to produce cellulose. They use this structural polysaccharide to build an exoskeleton called a tunic. Here, we investigate the composition and hierarchical structure of the tough tunic from the sea pineapple Halocynthia roretzi through a multiscale cross-disciplinary approach. The tunic of this species is a composite of cellulose and proteins with two distinct layers. At the surface is a thin sclerotized cuticular layer with a higher protein content containing halogenated amino acids and cross-linked via dityrosine linkages. The fibrous layer makes up the bulk of the tunic and is comprised of well-ordered cellulose fibres with a lower protein content. Given current efforts to utilize cellulose to produce advanced materials, the tunic of the sea pineapple provides a striking model for the design of bio-inspired cellulosic composites.
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Affiliation(s)
- Geonho Song
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Research Campus Golm, 14424 Potsdam, Germany
| | - Jérôme Delroisse
- Biology of Marine Organisms and Biomimetics Unit, Research Institute for Biosciences, University of Mons, 23 Place du Parc, 7000 Mons, Belgium
| | - Dorian Schoenaers
- Biology of Marine Organisms and Biomimetics Unit, Research Institute for Biosciences, University of Mons, 23 Place du Parc, 7000 Mons, Belgium
| | - Hyungbin Kim
- Division of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673
| | - Thai Cuong Nguyen
- Laboratory for Chemistry of Novel Materials, Center for Innovation and Research in Materials and Polymers (CIRMAP), University of Mons, 23 Place du Parc, 7000 Mons, Belgium
| | - Nils Horbelt
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Research Campus Golm, 14424 Potsdam, Germany
| | - Philippe Leclère
- Laboratory for Chemistry of Novel Materials, Center for Innovation and Research in Materials and Polymers (CIRMAP), University of Mons, 23 Place du Parc, 7000 Mons, Belgium
| | - Dong Soo Hwang
- Division of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673.
| | - Matthew J Harrington
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Research Campus Golm, 14424 Potsdam, Germany; Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada.
| | - Patrick Flammang
- Biology of Marine Organisms and Biomimetics Unit, Research Institute for Biosciences, University of Mons, 23 Place du Parc, 7000 Mons, Belgium.
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19
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Jehle F, Macías-Sánchez E, Sviben S, Fratzl P, Bertinetti L, Harrington MJ. Hierarchically-structured metalloprotein composite coatings biofabricated from co-existing condensed liquid phases. Nat Commun 2020; 11:862. [PMID: 32054841 PMCID: PMC7018715 DOI: 10.1038/s41467-020-14709-y] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Accepted: 01/24/2020] [Indexed: 12/16/2022] Open
Abstract
Complex hierarchical structure governs emergent properties in biopolymeric materials; yet, the material processing involved remains poorly understood. Here, we investigated the multi-scale structure and composition of the mussel byssus cuticle before, during and after formation to gain insight into the processing of this hard, yet extensible metal cross-linked protein composite. Our findings reveal that the granular substructure crucial to the cuticle’s function as a wear-resistant coating of an extensible polymer fiber is pre-organized in condensed liquid phase secretory vesicles. These are phase-separated into DOPA-rich proto-granules enveloped in a sulfur-rich proto-matrix which fuses during secretion, forming the sub-structure of the cuticle. Metal ions are added subsequently in a site-specific way, with iron contained in the sulfur-rich matrix and vanadium coordinated by DOPA-catechol in the granule. We posit that this hierarchical structure self-organizes via phase separation of specific amphiphilic proteins within secretory vesicles, resulting in a meso-scale structuring that governs cuticle function. The mussel byssus cuticle is a wear-resistant and extensible metalloprotein composite. Here, the authors probed the cuticle nanostructure and composition before, during and after fabrication revealing a crucial role of metal-binding proteins that self-organize via liquid-liquid phase separation.
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Affiliation(s)
- Franziska Jehle
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, 14424, Potsdam, Germany
| | - Elena Macías-Sánchez
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, 14424, Potsdam, Germany
| | - Sanja Sviben
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, 14424, Potsdam, Germany
| | - Peter Fratzl
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, 14424, Potsdam, Germany
| | - Luca Bertinetti
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, 14424, Potsdam, Germany.
| | - Matthew J Harrington
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, 14424, Potsdam, Germany. .,Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montréal, QC, H3A 0B8, Canada.
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20
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Pasche D, Horbelt N, Marin F, Motreuil S, Fratzl P, Harrington MJ. Self-healing silk from the sea: role of helical hierarchical structure in Pinna nobilis byssus mechanics. Soft Matter 2019; 15:9654-9664. [PMID: 31720677 DOI: 10.1039/c9sm01830a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The byssus fibers of Mytilus mussel species have become an important role model in bioinspired materials research due to their impressive properties (e.g. high toughness, self-healing); however, Mytilids represent only a small subset of all byssus-producing bivalves. Recent studies have revealed that byssus from other species possess completely different protein composition and hierarchical structure. In this regard, Pinna nobilis byssus is especially interesting due to its very different morphology, function and its historical use for weaving lightweight golden fabrics, known as sea silk. P. nobilis byssus was recently discovered to be comprised of globular proteins organized into a helical protein superstructure. In this work, we investigate the relationships between this hierarchical structure and the mechanical properties of P. nobilis byssus threads, including energy dissipation and self-healing capacity. To achieve this, we performed in-depth mechanical characterization, as well as tensile testing coupled with in situ X-ray scattering. Our findings reveal that P. nobilis byssus, like Mytilus, possesses self-healing and energy damping behavior and that the initial elastic behavior of P. nobilis byssus is due to stretching and unraveling of the previously observed helical building blocks comprising the byssus. These findings have biological relevance for understanding the convergent evolution of mussel byssus for different species, and also for the field of bio-inspired materials.
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Affiliation(s)
- Delphine Pasche
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Potsdam 14424, Germany
| | - Nils Horbelt
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Potsdam 14424, Germany
| | - Frédéric Marin
- UMR CNRS 6282 Biogéosciences, Université de Bourgogne - Franche-Comté, Dijon 21000, France
| | - Sébastien Motreuil
- UMR CNRS 6282 Biogéosciences, Université de Bourgogne - Franche-Comté, Dijon 21000, France
| | - Peter Fratzl
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Potsdam 14424, Germany
| | - Matthew J Harrington
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Potsdam 14424, Germany and Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada.
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Abstract
Marine mussels (Mytilus edulis) fabricate byssal threads, high-performance biopolymeric fibers, which exhibit exceptional toughness and self-healing capacity. These properties are associated with collagenous proteins in the fibrous thread core known as preCols that self-organize into a hierarchical semicrystalline structure. Threads assemble individually in a bottom-up process lasting just minutes via secretion of membrane bound vesicles filled with preCols. However, very little is understood about the details and dynamics of this assembly process. Here, we explore the hypothesis that preCols are stored within the vesicles in a liquid crystalline phase, which contributes to fiber assembly by preordering molecules. To achieve this, a protocol was developed for extracting and isolating intact preCol secretory vesicles in high yield and purity. Vesicles were characterized and were manipulated in vitro, clearly indicating the dynamic liquid crystalline nature of the proteins within. Moreover, mechanical shearing of vesicles led to formation of highly birefringent preCol fibers. These findings have relevance for efforts toward sustainable production of advanced polymeric materials, and possibly for engineering biomedical scaffolds based on collagenous proteins.
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Affiliation(s)
- Max Renner-Rao
- Department of Chemistry , McGill University , 801 Sherbrooke Street West , Montreal , Quebec H3A 0B8 , Canada
| | - Madelyn Clark
- Department of Chemistry , McGill University , 801 Sherbrooke Street West , Montreal , Quebec H3A 0B8 , Canada
| | - Matthew J Harrington
- Department of Chemistry , McGill University , 801 Sherbrooke Street West , Montreal , Quebec H3A 0B8 , Canada
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22
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Horbelt N, Eder M, Bertinetti L, Fratzl P, Harrington MJ. Unraveling the Rapid Assembly Process of Stiff Cellulosic Fibers from Mistletoe Berries. Biomacromolecules 2019; 20:3094-3103. [DOI: 10.1021/acs.biomac.9b00648] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Nils Horbelt
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Potsdam 14424, Germany
| | - Michaela Eder
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Potsdam 14424, Germany
| | - Luca Bertinetti
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Potsdam 14424, Germany
| | - Peter Fratzl
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Potsdam 14424, Germany
| | - Matthew J. Harrington
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
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Baer A, Horbelt N, Nijemeisland M, Garcia SJ, Fratzl P, Schmidt S, Mayer G, Harrington MJ. Shear-Induced β-Crystallite Unfolding in Condensed Phase Nanodroplets Promotes Fiber Formation in a Biological Adhesive. ACS Nano 2019; 13:4992-5001. [PMID: 30933471 DOI: 10.1021/acsnano.9b00857] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Natural materials provide an increasingly important role model for the development and processing of next-generation polymers. The velvet worm Euperipatoides rowelli hunts using a projectile, mechanoresponsive adhesive slime that rapidly and reversibly transitions into stiff glassy polymer fibers following shearing and drying. However, the molecular mechanism underlying this mechanoresponsive behavior is still unclear. Previous work showed the slime to be an emulsion of nanoscale charge-stabilized condensed droplets comprised primarily of large phosphorylated proteins, which under mechanical shear coalesce and self-organize into nano- and microfibrils that can be drawn into macroscopic fibers. Here, we utilize wide-angle X-ray diffraction and vibrational spectroscopy coupled with in situ shear deformation to explore the contribution of protein conformation and mechanical forces to the fiber formation process. Although previously believed to be unstructured, our findings indicate that the main phosphorylated protein component possesses a significant β-crystalline structure in the storage phase and that shear-induced partial unfolding of the protein is a key first step in the rapid self-organization of nanodroplets into fibers. The insights gained here have relevance for sustainable production of advanced polymeric materials.
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Affiliation(s)
- Alexander Baer
- Department of Zoology, Institute of Biology , University of Kassel , Heinrich-Plett-Str. 40 , D-34132 Kassel , Germany
| | - Nils Horbelt
- Department of Biomaterials , Max Planck Institute of Colloids and Interfaces , Research Campus Golm, D-14424 Potsdam , Germany
| | - Marlies Nijemeisland
- Novel Aerospace Materials group, Faculty of Aerospace Engineering , Delft University of Technology , Kluyverweg 1 , 2629 HS Delft , The Netherlands
| | - Santiago J Garcia
- Novel Aerospace Materials group, Faculty of Aerospace Engineering , Delft University of Technology , Kluyverweg 1 , 2629 HS Delft , The Netherlands
| | - Peter Fratzl
- Department of Biomaterials , Max Planck Institute of Colloids and Interfaces , Research Campus Golm, D-14424 Potsdam , Germany
| | - Stephan Schmidt
- Preparative Polymer Chemistry , Heinrich-Heine-Universität , Universitätsstraße 1 , D-40225 Düsseldorf , Germany
| | - Georg Mayer
- Department of Zoology, Institute of Biology , University of Kassel , Heinrich-Plett-Str. 40 , D-34132 Kassel , Germany
| | - Matthew J Harrington
- Department of Biomaterials , Max Planck Institute of Colloids and Interfaces , Research Campus Golm, D-14424 Potsdam , Germany
- Department of Chemistry , McGill University , 801 Sherbrooke Street West , Montreal , Quebec H3A 0B8 , Canada
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Baer A, Schmidt S, Mayer G, Harrington MJ. Fibers on the Fly: Multiscale Mechanisms of Fiber Formation in the Capture Slime of Velvet Worms. Integr Comp Biol 2019; 59:1690-1699. [DOI: 10.1093/icb/icz048] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Abstract
Many organisms have evolved a capacity to form biopolymeric fibers outside their bodies for functions such as defense, prey capture, attachment, and protection. In particular, the adhesive capture slime of onychophorans (velvet worms) is remarkable for its ability to rapidly form stiff fibers through mechanical drawing. Notably, fibers that are formed ex vivo from extracted slime can be dissolved in water and new fibers can be drawn from the solution, indicating that fiber formation is encoded in the biomolecules that comprise the slime. This review highlights recent findings on the biochemical and physicochemical principles guiding this circular process in the Australian onychophoran Euperipatoides rowelli. A multiscale cross-disciplinary approach utilizing techniques from biology, biochemistry, physical chemistry, and materials science has revealed that the slime is a concentrated emulsion of nanodroplets comprised primarily of proteins, stabilized via electrostatic interactions, possibly in a coacervate phase. Upon mechanical agitation, droplets coalesce, leading to spontaneous self-assembly and fibrillation of proteins—a completely reversible process. Recent investigations highlight the importance of subtle transitions in protein structure and charge balance. These findings have clear relevance for better understanding this adaptive prey capture behavior and providing inspiration toward sustainable polymer processing.
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Affiliation(s)
- Alexander Baer
- Department of Zoology, Institute of Biology, University of Kassel, Heinrich-Plett-Str. 40, Kassel, Germany
| | - Stephan Schmidt
- Institute of Organic and Macromolecular Chemistry, Heinrich-Heine-Universität Düsseldorf, Universitätsstr. 1, Düsseldorf, Germany
| | - Georg Mayer
- Department of Zoology, Institute of Biology, University of Kassel, Heinrich-Plett-Str. 40, Kassel, Germany
| | - Matthew J Harrington
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec, Canada
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25
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Tunn I, Harrington MJ, Blank KG. Bioinspired Histidine⁻Zn 2+ Coordination for Tuning the Mechanical Properties of Self-Healing Coiled Coil Cross-Linked Hydrogels. Biomimetics (Basel) 2019; 4:biomimetics4010025. [PMID: 31105210 PMCID: PMC6477626 DOI: 10.3390/biomimetics4010025] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Revised: 03/06/2019] [Accepted: 03/06/2019] [Indexed: 12/22/2022] Open
Abstract
Natural biopolymeric materials often possess properties superior to their individual components. In mussel byssus, reversible histidine (His)–metal coordination is a key feature, which mediates higher-order self-assembly as well as self-healing. The byssus structure, thus, serves as an excellent natural blueprint for the development of self-healing biomimetic materials with reversibly tunable mechanical properties. Inspired by byssal threads, we bioengineered His–metal coordination sites into a heterodimeric coiled coil (CC). These CC-forming peptides serve as a noncovalent cross-link for poly(ethylene glycol)-based hydrogels and participate in the formation of higher-order assemblies via intermolecular His–metal coordination as a second cross-linking mode. Raman and circular dichroism spectroscopy revealed the presence of α-helical, Zn2+ cross-linked aggregates. Using rheology, we demonstrate that the hydrogel is self-healing and that the addition of Zn2+ reversibly switches the hydrogel properties from viscoelastic to elastic. Importantly, using different Zn2+:His ratios allows for tuning the hydrogel relaxation time over nearly three orders of magnitude. This tunability is attributed to the progressive transformation of single CC cross-links into Zn2+ cross-linked aggregates; a process that is fully reversible upon addition of the metal chelator ethylenediaminetetraacetic acid. These findings reveal that His–metal coordination can be used as a versatile cross-linking mechanism for tuning the viscoelastic properties of biomimetic hydrogels.
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Affiliation(s)
- Isabell Tunn
- Mechano(bio)chemistry, Max Planck Institute of Colloids and Interfaces, Science Park Potsdam-Golm, 14424 Potsdam, Germany.
| | - Matthew J Harrington
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Science Park Potsdam-Golm, 14424 Potsdam, Germany.
- Department of Chemistry, McGill University, 801 Sherbrooke St. West, Montreal, QC H3A 0B8, Canada.
| | - Kerstin G Blank
- Mechano(bio)chemistry, Max Planck Institute of Colloids and Interfaces, Science Park Potsdam-Golm, 14424 Potsdam, Germany.
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26
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Zechel S, Hager MD, Priemel T, Harrington MJ. Healing through Histidine: Bioinspired Pathways to Self-Healing Polymers via Imidazole⁻Metal Coordination. Biomimetics (Basel) 2019; 4:E20. [PMID: 31105205 PMCID: PMC6477608 DOI: 10.3390/biomimetics4010020] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 02/19/2019] [Accepted: 02/22/2019] [Indexed: 12/03/2022] Open
Abstract
Biology offers a valuable inspiration toward the development of self-healing engineering composites and polymers. In particular, chemical level design principles extracted from proteinaceous biopolymers, especially the mussel byssus, provide inspiration for design of autonomous and intrinsic healing in synthetic polymers. The mussel byssus is an acellular tissue comprised of extremely tough protein-based fibers, produced by mussels to secure attachment on rocky surfaces. Threads exhibit self-healing response following an apparent plastic yield event, recovering initial material properties in a time-dependent fashion. Recent biochemical analysis of the structure-function relationships defining this response reveal a key role of sacrificial cross-links based on metal coordination bonds between Zn2+ ions and histidine amino acid residues. Inspired by this example, many research groups have developed self-healing polymeric materials based on histidine (imidazole)-metal chemistry. In this review, we provide a detailed overview of the current understanding of the self-healing mechanism in byssal threads, and an overview of the current state of the art in histidine- and imidazole-based synthetic polymers.
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Affiliation(s)
- Stefan Zechel
- Laboratory for Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany.
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany.
| | - Martin D Hager
- Laboratory for Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743 Jena, Germany.
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany.
| | - Tobias Priemel
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, QC H3A 0B8, Canada.
| | - Matthew J Harrington
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, QC H3A 0B8, Canada.
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27
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Abstract
Coiled coils (CCs) have emerged as versatile building blocks for the synthesis of nanostructures, drug delivery systems and biomimetic hydrogels. Bioengineering metal coordination sites into the terminal ends of a synthetic coiled coil (CC), we generate a nanoscale biological building block with tunable stability. The reversible coordination of Ni2+ thermodynamically stabilizes the CC, as shown with circular dichroism spectroscopy. Using atomic force microscopy-based single-molecule force spectroscopy, it is further shown that Ni2+-binding reinforces the CC mechanically, increasing the barrier height for dissociation. When used as a dynamic crosslink in polyethyleneglycol-based hydrogels, the single-molecule stability of the CC is directly transferred to the bulk material and determines its viscoelastic properties. This reversibly tunable CC, thus, highlights an effective strategy for rationally engineering the single-molecule properties of biomolecular building blocks, which can be translated to the emergent properties of biomimetic materials, as well as other CC containing molecular assemblies.
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Affiliation(s)
- Isabell Tunn
- Max Planck Institute of Colloids and Interfaces, Science Park Potsdam-Golm, 14424 Potsdam, Germany.
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28
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Harrington MJ, Jehle F, Priemel T. Mussel Byssus Structure‐Function and Fabrication as Inspiration for Biotechnological Production of Advanced Materials. Biotechnol J 2018; 13:e1800133. [DOI: 10.1002/biot.201800133] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 07/24/2018] [Indexed: 02/05/2023]
Affiliation(s)
- Matthew J. Harrington
- Department of BiomaterialsMax Planck Institute of Colloids and InterfacesPotsdam14424Germany
- Department of ChemistryMcGill University801 Sherbrooke Street WestMontreal H3A 0B8QuebecCanada
| | - Franziska Jehle
- Department of BiomaterialsMax Planck Institute of Colloids and InterfacesPotsdam14424Germany
| | - Tobias Priemel
- Department of ChemistryMcGill University801 Sherbrooke Street WestMontreal H3A 0B8QuebecCanada
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29
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Baer A, Hänsch S, Mayer G, Harrington MJ, Schmidt S. Reversible Supramolecular Assembly of Velvet Worm Adhesive Fibers via Electrostatic Interactions of Charged Phosphoproteins. Biomacromolecules 2018; 19:4034-4043. [DOI: 10.1021/acs.biomac.8b01017] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Alexander Baer
- Department of Zoology, Institute of Biology, University of Kassel, Heinrich-Plett-Str. 40, 34132 Kassel, Germany
| | - Sebastian Hänsch
- Center for Advanced Imaging (CAi), Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany
| | - Georg Mayer
- Department of Zoology, Institute of Biology, University of Kassel, Heinrich-Plett-Str. 40, 34132 Kassel, Germany
| | - Matthew J. Harrington
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Potsdam 14424, Germany
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
| | - Stephan Schmidt
- Institute of Organic and Macromolecular Chemistry, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße Universitätsstr. 1, 40225 Düsseldorf, Germany
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30
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Abstract
Bottom-up control over structural hierarchy from the nanoscale through the macroscale is a critical aspect of biological materials fabrication and function, which can inspire production of advanced materials. Mussel byssal threads are a prime example of protein-based biofibers in which hierarchical organization of protein building blocks coupled via metal complexation leads to notable mechanical behaviors, such as high toughness and self-healing. Using a natural amino acid sequence from byssal thread proteins, which functions as a pH-triggered self-assembly point, we created free-standing peptide films with complex hierarchical organization across multiple length scales that can be controlled by inclusion of metal ions (Zn2+ and Cu2+) during the assembly process. Additionally, analysis of film mechanical performance indicates that metal coordination bestows up to an order of magnitude increase in material stiffness, providing a paradigm for creating tunable polymeric materials with multiscale organizational structure.
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Affiliation(s)
- Franziska Jehle
- Department of Biomaterials , Max Planck Institute of Colloids and Interfaces , Potsdam 14476 , Germany
| | - Peter Fratzl
- Department of Biomaterials , Max Planck Institute of Colloids and Interfaces , Potsdam 14476 , Germany
| | - Matthew J Harrington
- Department of Biomaterials , Max Planck Institute of Colloids and Interfaces , Potsdam 14476 , Germany
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31
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Montroni D, Valle F, Rapino S, Fermani S, Calvaresi M, Harrington MJ, Falini G. Functional Biocompatible Matrices from Mussel Byssus Waste. ACS Biomater Sci Eng 2017; 4:57-65. [DOI: 10.1021/acsbiomaterials.7b00743] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Devis Montroni
- Dipartimento
di Chimica “Giacomo Ciamician”, Alma Mater Studiorum Università di Bologna, via Selmi 2, 40126 Bologna, Italy
| | - Francesco Valle
- National
Research Council (CNR), Institute for Nanostructured Materials (ISMN), Via
P. Gobetti 101, 40129 Bologna, Italy
| | - Stefania Rapino
- Dipartimento
di Chimica “Giacomo Ciamician”, Alma Mater Studiorum Università di Bologna, via Selmi 2, 40126 Bologna, Italy
| | - Simona Fermani
- Dipartimento
di Chimica “Giacomo Ciamician”, Alma Mater Studiorum Università di Bologna, via Selmi 2, 40126 Bologna, Italy
| | - Matteo Calvaresi
- Dipartimento
di Chimica “Giacomo Ciamician”, Alma Mater Studiorum Università di Bologna, via Selmi 2, 40126 Bologna, Italy
| | - Matthew J. Harrington
- Department
of Biomaterials, Max-Planck Institute for Colloids and Interfaces, Research Campus Golm, Am Mühlenberg 1, Potsdam 14424, Germany
| | - Giuseppe Falini
- Dipartimento
di Chimica “Giacomo Ciamician”, Alma Mater Studiorum Università di Bologna, via Selmi 2, 40126 Bologna, Italy
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32
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Baer A, Schmidt S, Haensch S, Eder M, Mayer G, Harrington MJ. Mechanoresponsive lipid-protein nanoglobules facilitate reversible fibre formation in velvet worm slime. Nat Commun 2017; 8:974. [PMID: 29042549 PMCID: PMC5645397 DOI: 10.1038/s41467-017-01142-x] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Accepted: 08/22/2017] [Indexed: 12/23/2022] Open
Abstract
Velvet worms eject a fluid capture slime that can be mechanically drawn into stiff biopolymeric fibres. Remarkably, these fibres can be dissolved by extended exposure to water, and new regenerated fibres can be drawn from the dissolved fibre solution-indicating a fully recyclable process. Here, we perform a multiscale structural and compositional investigation of this reversible fabrication process with the velvet worm Euperipatoides rowelli, revealing that biopolymeric fibre assembly is facilitated via mono-disperse lipid-protein nanoglobules. Shear forces cause nanoglobules to self-assemble into nano- and microfibrils, which can be drawn into macroscopic fibres with a protein-enriched core and lipid-rich coating. Fibre dissolution in water leads to re-formation of nanoglobules, suggesting that this dynamic supramolecular assembly of mechanoresponsive protein-building blocks is mediated by reversible non-covalent interactions. These findings offer important mechanistic insights into the role of mechanochemical processes in bio-fibre formation, providing potential avenues for sustainable material fabrication processes.Velvet worms expel a fluid slime that, under shear force, forms stiff fibres that can be dissolved and then regenerated. Here, the authors reveal that the recyclability of these biopolymers relies on mechanoresponsive lipid-protein nanoglobules in the slime that reversibly self-assemble into fibrils.
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Affiliation(s)
- Alexander Baer
- Department of Zoology, Institute of Biology, University of Kassel, Heinrich-Plett-Str. 40, 34132, Kassel, Germany.
| | - Stephan Schmidt
- Institute of Organic and Macromolecular Chemistry, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, 40225, Düsseldorf, Germany
| | - Sebastian Haensch
- Center for Advanced Imaging (CAi), Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, 40225, Düsseldorf, Germany
| | - Michaela Eder
- Dept. of Biomaterials, Max Planck Institute of Colloids and Interfaces, Research Campus Golm, 14424, Potsdam, Germany
| | - Georg Mayer
- Department of Zoology, Institute of Biology, University of Kassel, Heinrich-Plett-Str. 40, 34132, Kassel, Germany
| | - Matthew J Harrington
- Dept. of Biomaterials, Max Planck Institute of Colloids and Interfaces, Research Campus Golm, 14424, Potsdam, Germany. .,Dept. of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, QC, H3A 0B8, Canada.
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33
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Fu J, Guerette PA, Pavesi A, Horbelt N, Lim CT, Harrington MJ, Miserez A. Artificial hagfish protein fibers with ultra-high and tunable stiffness. Nanoscale 2017; 9:12908-12915. [PMID: 28832693 DOI: 10.1039/c7nr02527k] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Stiff fibers are used as reinforcing phases in a wide range of high-performance composite materials. Silk is one of the most widely studied bio-fibers, but alternative materials with specific advantages are also being explored. Among these, native hagfish (Eptatretus stoutii) slime thread is an attractive protein-based polymer. These threads consist of coiled-coil intermediate filaments (IFs) as nano-scale building blocks, which can be transformed into extended β-sheet-containing chains upon draw-processing, resulting in fibers with impressive mechanical performance. Here, we report artificial hagfish threads produced by recombinant protein expression, which were subsequently self-assembled into coiled-coil nanofilaments, concentrated, and processed into β-sheet-rich fibers by a "picking-up" method. These artificial fibers experienced mechanical performance enhancement during draw-processing. We exploited the lysine content to covalently cross-link the draw-processed fibers and obtained moduli values (E) in tension as high as ∼20 GPa, which is stiffer than most reported artificial proteinaceous materials.
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Affiliation(s)
- Jing Fu
- School of Materials Science and Engineering, Nanyang Technological University (NTU), Singapore 639798
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34
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Priemel T, Degtyar E, Dean MN, Harrington MJ. Rapid self-assembly of complex biomolecular architectures during mussel byssus biofabrication. Nat Commun 2017; 8:14539. [PMID: 28262668 DOI: 10.1038/ncomss14539] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Accepted: 01/06/2017] [Indexed: 05/25/2023] Open
Abstract
Protein-based biogenic materials provide important inspiration for the development of high-performance polymers. The fibrous mussel byssus, for instance, exhibits exceptional wet adhesion, abrasion resistance, toughness and self-healing capacity-properties that arise from an intricate hierarchical organization formed in minutes from a fluid secretion of over 10 different protein precursors. However, a poor understanding of this dynamic biofabrication process has hindered effective translation of byssus design principles into synthetic materials. Here, we explore mussel byssus assembly in Mytilus edulis using a synergistic combination of histological staining and confocal Raman microspectroscopy, enabling in situ tracking of specific proteins during induced thread formation from soluble precursors to solid fibres. Our findings reveal critical insights into this complex biological manufacturing process, showing that protein precursors spontaneously self-assemble into complex architectures, while maturation proceeds in subsequent regulated steps. Beyond their biological importance, these findings may guide development of advanced materials with biomedical and industrial relevance.
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Affiliation(s)
- Tobias Priemel
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Research Campus Golm, 14424 Potsdam, Germany
| | - Elena Degtyar
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Research Campus Golm, 14424 Potsdam, Germany
| | - Mason N Dean
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Research Campus Golm, 14424 Potsdam, Germany
| | - Matthew J Harrington
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Research Campus Golm, 14424 Potsdam, Germany
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35
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Priemel T, Degtyar E, Dean MN, Harrington MJ. Rapid self-assembly of complex biomolecular architectures during mussel byssus biofabrication. Nat Commun 2017; 8:14539. [PMID: 28262668 PMCID: PMC5343498 DOI: 10.1038/ncomms14539] [Citation(s) in RCA: 101] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Accepted: 01/06/2017] [Indexed: 01/01/2023] Open
Abstract
Protein-based biogenic materials provide important inspiration for the development of high-performance polymers. The fibrous mussel byssus, for instance, exhibits exceptional wet adhesion, abrasion resistance, toughness and self-healing capacity–properties that arise from an intricate hierarchical organization formed in minutes from a fluid secretion of over 10 different protein precursors. However, a poor understanding of this dynamic biofabrication process has hindered effective translation of byssus design principles into synthetic materials. Here, we explore mussel byssus assembly in Mytilus edulis using a synergistic combination of histological staining and confocal Raman microspectroscopy, enabling in situ tracking of specific proteins during induced thread formation from soluble precursors to solid fibres. Our findings reveal critical insights into this complex biological manufacturing process, showing that protein precursors spontaneously self-assemble into complex architectures, while maturation proceeds in subsequent regulated steps. Beyond their biological importance, these findings may guide development of advanced materials with biomedical and industrial relevance. Mussels attach to rocks using a byssus, which possesses unique properties of adhesion, toughness and self-healing. Here, the authors explore the fabrication process of mussel byssus demonstrating the self-assembly of specific proteins into multi-scale organized structures using artificially induced byssus threads.
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Affiliation(s)
- Tobias Priemel
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Research Campus Golm, 14424 Potsdam, Germany
| | - Elena Degtyar
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Research Campus Golm, 14424 Potsdam, Germany
| | - Mason N Dean
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Research Campus Golm, 14424 Potsdam, Germany
| | - Matthew J Harrington
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Research Campus Golm, 14424 Potsdam, Germany
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36
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Enke M, Jehle F, Bode S, Vitz J, Harrington MJ, Hager MD, Schubert US. Histidine-Zinc Interactions Investigated by Isothermal Titration Calorimetry (ITC) and their Application in Self-Healing Polymers. MACROMOL CHEM PHYS 2017. [DOI: 10.1002/macp.201600458] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Marcel Enke
- Laboratory of Organic and Macromolecular Chemistry (IOMC); Friedrich Schiller University Jena; Humboldtstr. 10 07743 Jena Germany
- Jena Center for Soft Matter (JCSM); Friedrich Schiller University Jena; Philosophenweg 7 07743 Jena Germany
| | - Franziska Jehle
- Department of Biomaterials; Max Planck Institute of Colloids and Interfaces; 14424 Potsdam Germany
| | - Stefan Bode
- Laboratory of Organic and Macromolecular Chemistry (IOMC); Friedrich Schiller University Jena; Humboldtstr. 10 07743 Jena Germany
- Jena Center for Soft Matter (JCSM); Friedrich Schiller University Jena; Philosophenweg 7 07743 Jena Germany
| | - Jürgen Vitz
- Laboratory of Organic and Macromolecular Chemistry (IOMC); Friedrich Schiller University Jena; Humboldtstr. 10 07743 Jena Germany
- Jena Center for Soft Matter (JCSM); Friedrich Schiller University Jena; Philosophenweg 7 07743 Jena Germany
| | - Matthew J. Harrington
- Department of Biomaterials; Max Planck Institute of Colloids and Interfaces; 14424 Potsdam Germany
| | - Martin D. Hager
- Laboratory of Organic and Macromolecular Chemistry (IOMC); Friedrich Schiller University Jena; Humboldtstr. 10 07743 Jena Germany
- Jena Center for Soft Matter (JCSM); Friedrich Schiller University Jena; Philosophenweg 7 07743 Jena Germany
| | - Ulrich S. Schubert
- Laboratory of Organic and Macromolecular Chemistry (IOMC); Friedrich Schiller University Jena; Humboldtstr. 10 07743 Jena Germany
- Jena Center for Soft Matter (JCSM); Friedrich Schiller University Jena; Philosophenweg 7 07743 Jena Germany
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37
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Montroni D, Piccinetti C, Fermani S, Calvaresi M, Harrington MJ, Falini G. Exploitation of mussel byssus mariculture waste as a water remediation material. RSC Adv 2017. [DOI: 10.1039/c7ra06664c] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The byssus is an alimentary industry waste with a unique combination of functional groups that has been successfully tested for the removal of charged aromatic dyes from water.
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Affiliation(s)
- Devis Montroni
- Dipartimento di Chimica “Giacomo Ciamician”
- Alma Mater Studiorum Università di Bologna
- 40126 Bologna
- Italy
| | - Corrado Piccinetti
- Laboratory of Fisheries and Marine Biology
- University of Bologna
- Fano
- Italy
| | - Simona Fermani
- Dipartimento di Chimica “Giacomo Ciamician”
- Alma Mater Studiorum Università di Bologna
- 40126 Bologna
- Italy
| | - Matteo Calvaresi
- Dipartimento di Chimica “Giacomo Ciamician”
- Alma Mater Studiorum Università di Bologna
- 40126 Bologna
- Italy
| | - Matthew J. Harrington
- Department of Biomaterials
- Max-Planck Institute for Colloids and Interfaces
- Research Campus Golm
- Potsdam 14424
- Germany
| | - Giuseppe Falini
- Dipartimento di Chimica “Giacomo Ciamician”
- Alma Mater Studiorum Università di Bologna
- 40126 Bologna
- Italy
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Reinecke A, Bertinetti L, Fratzl P, Harrington MJ. Cooperative behavior of a sacrificial bond network and elastic framework in providing self-healing capacity in mussel byssal threads. J Struct Biol 2016; 196:329-339. [DOI: 10.1016/j.jsb.2016.07.020] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Revised: 07/27/2016] [Accepted: 07/28/2016] [Indexed: 12/13/2022]
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Farbod K, Diba M, Zinkevich T, Schmidt S, Harrington MJ, Kentgens APM, Leeuwenburgh SCG. Gelatin Nanoparticles with Enhanced Affinity for Calcium Phosphate. Macromol Biosci 2016; 16:717-29. [DOI: 10.1002/mabi.201500414] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Revised: 12/09/2015] [Indexed: 01/04/2023]
Affiliation(s)
- Kambiz Farbod
- Department of Biomaterials; Radboud Institute for Molecular Life Sciences; Radboud University Medical Center; Philips van Leydenlaan 25 6525 EX Nijmegen The Netherlands
| | - Mani Diba
- Department of Biomaterials; Radboud Institute for Molecular Life Sciences; Radboud University Medical Center; Philips van Leydenlaan 25 6525 EX Nijmegen The Netherlands
| | - Tatiana Zinkevich
- Department of Solid State NMR; Institute for Molecules and Materials; Radboud University; Heyendaalseweg 135 6525 AJ Nijmegen The Netherlands
| | - Stephan Schmidt
- Biophysical Chemistry Group; Institute of Biochemistry; Faculty of Biosciences; Pharmacy and Psychology; Universität Leipzig; D-04103 Leipzig Germany
- Institute of Organic and Macromolecular Chemistry; Heinrich-Heine-University Düsseldorf; Universitätsstrasse 1 D-40225 Düsseldorf Germany
| | - Matthew J. Harrington
- Department of Biomaterials; Max Planck Institute for Colloids and Interfaces; D-14424 Potsdam Germany
| | - Arno P. M. Kentgens
- Department of Solid State NMR; Institute for Molecules and Materials; Radboud University; Heyendaalseweg 135 6525 AJ Nijmegen The Netherlands
| | - Sander C. G. Leeuwenburgh
- Department of Biomaterials; Radboud Institute for Molecular Life Sciences; Radboud University Medical Center; Philips van Leydenlaan 25 6525 EX Nijmegen The Netherlands
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Schmitt CNZ, Winter A, Bertinetti L, Masic A, Strauch P, Harrington MJ. Mechanical homeostasis of a DOPA-enriched biological coating from mussels in response to metal variation. J R Soc Interface 2015; 12:0466. [PMID: 26311314 PMCID: PMC4614455 DOI: 10.1098/rsif.2015.0466] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Accepted: 07/31/2015] [Indexed: 11/12/2022] Open
Abstract
Protein-metal coordination interactions were recently found to function as crucial mechanical cross-links in certain biological materials. Mussels, for example, use Fe ions from the local environment coordinated to DOPA-rich proteins to stiffen the protective cuticle of their anchoring byssal attachment threads. Bioavailability of metal ions in ocean habitats varies significantly owing to natural and anthropogenic inputs on both short and geological spatio-temporal scales leading to large variations in byssal thread metal composition; however, it is not clear how or if this affects thread performance. Here, we demonstrate that in natural environments mussels can opportunistically replace Fe ions in the DOPA coordination complex with V and Al. In vitro removal of the native DOPA-metal complexes with ethylenediaminetetraacetic acid and replacement with either Fe or V does not lead to statistically significant changes in cuticle performance, indicating that each metal ion is equally sufficient as a DOPA cross-linking agent, able to account for nearly 85% of the stiffness and hardness of the material. Notably, replacement with Al ions also leads to full recovery of stiffness, but only 82% recovery of hardness. These findings have important implications for the adaptability of this biological material in a dynamically changing and unpredictable habitat.
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Affiliation(s)
- Clemens N Z Schmitt
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Potsdam 14424, Germany
| | - Alette Winter
- Institute of Chemistry, University of Potsdam, Potsdam 14476, Germany
| | - Luca Bertinetti
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Potsdam 14424, Germany
| | - Admir Masic
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Potsdam 14424, Germany
| | - Peter Strauch
- Institute of Chemistry, University of Potsdam, Potsdam 14476, Germany
| | - Matthew J Harrington
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Potsdam 14424, Germany
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Schmitt CNZ, Politi Y, Reinecke A, Harrington MJ. Role of Sacrificial Protein–Metal Bond Exchange in Mussel Byssal Thread Self-Healing. Biomacromolecules 2015; 16:2852-61. [DOI: 10.1021/acs.biomac.5b00803] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Clemens N. Z. Schmitt
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Potsdam 14424, Germany
| | - Yael Politi
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Potsdam 14424, Germany
| | - Antje Reinecke
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Potsdam 14424, Germany
| | - Matthew J. Harrington
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Potsdam 14424, Germany
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Das S, Miller DR, Kaufman Y, Martinez Rodriguez NR, Pallaoro A, Harrington MJ, Gylys M, Israelachvili JN, Waite JH. Correction to “Tough Coating Proteins: Subtle Sequence Variation Modulates Cohesion”. Biomacromolecules 2015; 16:2254. [DOI: 10.1021/acs.biomac.5b00759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Enke M, Bode S, Vitz J, Schacher FH, Harrington MJ, Hager MD, Schubert US. Self-healing response in supramolecular polymers based on reversible zinc–histidine interactions. POLYMER 2015. [DOI: 10.1016/j.polymer.2015.03.068] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Das S, Miller DR, Kaufman Y, Martinez Rodriguez NR, Pallaoro A, Harrington MJ, Gylys M, Israelachvili JN, Waite JH. Tough coating proteins: subtle sequence variation modulates cohesion. Biomacromolecules 2015; 16:1002-8. [PMID: 25692318 DOI: 10.1021/bm501893y] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Mussel foot protein-1 (mfp-1) is an essential constituent of the protective cuticle covering all exposed portions of the byssus (plaque and the thread) that marine mussels use to attach to intertidal rocks. The reversible complexation of Fe(3+) by the 3,4-dihydroxyphenylalanine (Dopa) side chains in mfp-1 in Mytilus californianus cuticle is responsible for its high extensibility (120%) as well as its stiffness (2 GPa) due to the formation of sacrificial bonds that help to dissipate energy and avoid accumulation of stresses in the material. We have investigated the interactions between Fe(3+) and mfp-1 from two mussel species, M. californianus (Mc) and M. edulis (Me), using both surface sensitive and solution phase techniques. Our results show that although mfp-1 homologues from both species bind Fe(3+), mfp-1 (Mc) contains Dopa with two distinct Fe(3+)-binding tendencies and prefers to form intramolecular complexes with Fe(3+). In contrast, mfp-1 (Me) is better adapted to intermolecular Fe(3+) binding by Dopa. Addition of Fe(3+) did not significantly increase the cohesion energy between the mfp-1 (Mc) films at pH 5.5. However, iron appears to stabilize the cohesive bridging of mfp-1 (Mc) films at the physiologically relevant pH of 7.5, where most other mfps lose their ability to adhere reversibly. Understanding the molecular mechanisms underpinning the capacity of M. californianus cuticle to withstand twice the strain of M. edulis cuticle is important for engineering of tunable strain tolerant composite coatings for biomedical applications.
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Affiliation(s)
- Saurabh Das
- Department of Chemical Engineering, ‡Biomolecular Science and Engineering, §Department of Molecular, Cell and Developmental Biology, ∥Department of Chemistry and Biochemistry, and #Materials Research Laboratory, University of California , Santa Barbara, California 93106, United States
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Degtyar E, Harrington MJ, Politi Y, Fratzl P. Die Bedeutung von Metallionen für die mechanischen Eigenschaften von Biomaterialien auf Proteinbasis. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201404272] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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47
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Degtyar E, Harrington MJ, Politi Y, Fratzl P. The Mechanical Role of Metal Ions in Biogenic Protein-Based Materials. Angew Chem Int Ed Engl 2014; 53:12026-44. [DOI: 10.1002/anie.201404272] [Citation(s) in RCA: 168] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2014] [Indexed: 12/23/2022]
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Nabavi SS, Harrington MJ, Fratzl P, Hartmann MA. Influence of sacrificial bonds on the mechanical behaviour of polymer chains. Bioinspired, Biomimetic and Nanobiomaterials 2014. [DOI: 10.1680/bbn.14.00009] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Guerette PA, Z. Tay G, Hoon S, Loke JJ, Hermawan AF, Schmitt CNZ, Harrington MJ, Masic A, Karunaratne A, Gupta HS, Tan KS, Schwaighofer A, Nowak C, Miserez A. Integrative and comparative analysis of coiled-coil based marine snail egg cases – a model for biomimetic elastomers. Biomater Sci 2014; 2:710-722. [DOI: 10.1039/c3bm60264h] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Poulsen N, Kröger N, Harrington MJ, Brunner E, Paasch S, Buhmann MT. Isolation and biochemical characterization of underwater adhesives from diatoms. Biofouling 2014; 30:513-23. [PMID: 24689803 DOI: 10.1080/08927014.2014.895895] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Many aquatic organisms are able to colonize surfaces through the secretion of underwater adhesives. Diatoms are unicellular algae that have the capability to colonize any natural and man-made submerged surfaces. There is great technological interest in both mimicking and preventing diatom adhesion, yet the biomolecules responsible have so far remained unidentified. A new method for the isolation of diatom adhesive material is described and its amino acid and carbohydrate composition determined. The adhesive materials from two model diatoms show differences in their amino acid and carbohydrate compositions, but also share characteristic features including a high content of uronic acids, the predominance of hydrophilic amino acid residues, and the presence of 3,4-dihydroxyproline, an extremely rare amino acid. Proteins containing dihydroxyphenylalanine, which mediate underwater adhesion of mussels, are absent. The data on the composition of diatom adhesives are consistent with an adhesion mechanism based on complex coacervation of polyelectrolyte-like biomolecules.
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Affiliation(s)
- Nicole Poulsen
- a ZIK B CUBE , Technische Universität Dresden , Dresden , Germany
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