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Hoch H, Pingel M, Voigt D, Wyss U, Gorb S. Adhesive properties of Aphrophoridae spittlebug foam. J R Soc Interface 2024; 21:20230521. [PMID: 38196374 PMCID: PMC10777165 DOI: 10.1098/rsif.2023.0521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Accepted: 12/11/2023] [Indexed: 01/11/2024] Open
Abstract
Aphrophora alni spittlebug nymphs produce a wet foam from anal excrement fluid, covering and protecting themselves against numerous impacts. Foam fluid contact angles on normal (26°) and silanized glass (37°) suggest that the foam wets various substrates, including plant and arthropod surfaces. The pull-off force depends on the hydration state and is higher the more dry the fluid. Because the foam desiccates as fast as water, predators once captured struggle to free from drying foam, becoming stickier. The present study confirms that adhesion is one of the numerous foam characteristics resulting in multifunctional effects, which promote spittlebugs' survival and render the foam a smart, biocompatible material of biological, biomimetic and biomedical interest. The sustainable 'reuse' of large amounts of excrement for foam production and protection of the thin nymph integument suggests energetic and evolutionary advantages. Probably, that is why foam nests have evolved in different groups of organisms, such as spittlebugs, frogs and fish.
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Affiliation(s)
- Hannelore Hoch
- Museum für Naturkunde, Leibniz-Institut für Evolutions- und Biodiversitätsforschung, Invalidenstraße 43, 10115 Berlin, Germany
| | - Martin Pingel
- Museum für Naturkunde, Leibniz-Institut für Evolutions- und Biodiversitätsforschung, Invalidenstraße 43, 10115 Berlin, Germany
| | - Dagmar Voigt
- Botany, Faculty of Biology, Technische Universität Dresden, 01062 Dresden, Germany
| | - Urs Wyss
- Entofilm, Dahlmannstraße 2a, 24103 Kiel, Germany
| | - Stanislav Gorb
- Department of Functional Morphology and Biomechanics, Zoological Institute, Christian-Albrechts-Universität zu Kiel, Am Botanischen Garten 1–9, 24098 Kiel, Germany
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2
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Keykhaee M, Rahimifard M, Najafi A, Baeeri M, Abdollahi M, Mottaghitalab F, Farokhi M, Khoobi M. Alginate/gum arabic-based biomimetic hydrogel enriched with immobilized nerve growth factor and carnosine improves diabetic wound regeneration. Carbohydr Polym 2023; 321:121179. [PMID: 37739486 DOI: 10.1016/j.carbpol.2023.121179] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 07/05/2023] [Accepted: 07/06/2023] [Indexed: 09/24/2023]
Abstract
Diabetic foot ulcers (DFUs) often remain untreated because they are difficult to heal, caused by reduced skin sensitivity and impaired blood vessel formation. In this study, we propose a novel approach to manage DFUs using a multifunctional hydrogel made from a combination of alginate and gum arabic. To enhance the healing properties of the hydrogel, we immobilized nerve growth factor (NGF), within specially designed mesoporous silica nanoparticles (MSN). The MSNs were then incorporated into the hydrogel along with carnosine (Car), which further improves the hydrogel's therapeutic properties. The hydrogel containing the immobilized NGF (SiNGF) could control the sustain release of NGF for >21 days, indicating that the target hydrogel (AG-Car/SiNGF) can serve as a suitable reservoir managing diabetic wound regeneration. In addition, Car was able to effectively reduce inflammation and significantly increase angiogenesis compared to the control group. Based on the histological results obtained from diabetic rats, the target hydrogel (AG-Car/SiNGF) reduced inflammation and improved re-epithelialization, angiogenesis, and collagen deposition. Specific staining also confirmed that AG-Car/SiNGF exhibited improved tissue neovascularization, transforming growth factor-beta (TGFβ) expression, and nerve neurofilament. Overall, our research suggests that this newly developed composite system holds promise as a potential treatment for non-healing diabetic wounds.
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Affiliation(s)
- Maryam Keykhaee
- Department of Pharmaceutical Biomaterials and Medical Biomaterial Research Center (MBRC), Faculty of Pharmacy, Tehran University of Medical Science, Tehran, Iran
| | - Mahban Rahimifard
- Toxicology and Diseases Group (TDG), Pharmaceutical Sciences Research Center (PSRC), The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran, Iran
| | - Alireza Najafi
- Department of Immunology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Maryam Baeeri
- Toxicology and Diseases Group (TDG), Pharmaceutical Sciences Research Center (PSRC), The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Abdollahi
- Toxicology and Diseases Group (TDG), Pharmaceutical Sciences Research Center (PSRC), The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran, Iran; Department of Toxicology and Pharmacology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Fatemeh Mottaghitalab
- Nanotechnology Research Center, Faculty of Pharmacy, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Mehdi Farokhi
- National Cell Bank of Iran, Pasteur Institute of Iran, Tehran, Iran.
| | - Mehdi Khoobi
- Department of Pharmaceutical Biomaterials and Medical Biomaterial Research Center (MBRC), Faculty of Pharmacy, Tehran University of Medical Science, Tehran, Iran; Department of Radiopharmacy, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran; Biomaterials Group, Pharmaceutical Sciences Research Center (PSRC), The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Science, Tehran, Iran.
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3
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Diehl D, Knott M, Schaumann GE. Purification effects show seed and root mucilage's ability to respond to changing rhizosphere conditions. Biopolymers 2023; 114:e23561. [PMID: 37435955 DOI: 10.1002/bip.23561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 06/11/2023] [Accepted: 06/26/2023] [Indexed: 07/13/2023]
Abstract
Mucilage, a polysaccharide-containing hydrogel, is hypothesized to play a key role in the rhizosphere as a self-organized system because it may vary its supramolecular structure with changes in the surrounding solution. However, there is currently limited research on how these changes are reflected in the physical properties of real mucilage. This study examines the role of solutes in maize root, wheat root, chia seed, and flax seed mucilage in relation to their physical properties. Two purification methods, dialysis and ethanol precipitation, were applied to determine the purification yield, cation content, pH, electrical conductivity, surface tension, viscosity, transverse 1 H relaxation time, and contact angle after drying of mucilage before and after purification. The two seed mucilage types contain more polar polymers that are connected to larger assemblies via multivalent cation crosslinks, resulting in a denser network. This is reflected in higher viscosity and water retention ability compared to root mucilage. Seed mucilage also contains fewer surfactants, making them better wettable after drying compared to the two root mucilage types. The root mucilage types, on the other hand, contain smaller polymers or polymer assemblies and become less wettable after drying. However, wettability not only depends on the amount of surfactants but also on their mobility, as well as the strength and mesh size of the network structure. The changes in physical properties and cation composition observed after ethanol precipitation and dialysis suggest that the polymer network of seed mucilage is more stable and specialized in protecting the seeds from unfavorable environmental conditions. In contrast, root mucilage is characterized by fewer cationic interactions and its network relies more on hydrophobic interactions. This allows root mucilage to be more flexible in responding to changing environmental conditions, facilitating nutrient and water exchange between root surfaces and the rhizosphere soil.
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Affiliation(s)
- Doerte Diehl
- Environmental and Soil Chemistry Group, Rheinland-Pfälzische Technische Universität Kaiserslautern Landau, RPTU in Landau, iES Institute for Environmental Sciences, Landau, Germany
| | - Mathilde Knott
- Environmental and Soil Chemistry Group, Rheinland-Pfälzische Technische Universität Kaiserslautern Landau, RPTU in Landau, iES Institute for Environmental Sciences, Landau, Germany
| | - Gabriele E Schaumann
- Environmental and Soil Chemistry Group, Rheinland-Pfälzische Technische Universität Kaiserslautern Landau, RPTU in Landau, iES Institute for Environmental Sciences, Landau, Germany
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4
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Xu S, Li XQ, Guo H, Wu XY, Wang N, Liu ZQ, Hao HQ, Jing HC. Mucilage secretion by aerial roots in sorghum (Sorghum bicolor): sugar profile, genetic diversity, GWAS and transcriptomic analysis. PLANT MOLECULAR BIOLOGY 2023:10.1007/s11103-023-01365-1. [PMID: 37378835 DOI: 10.1007/s11103-023-01365-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Accepted: 06/03/2023] [Indexed: 06/29/2023]
Abstract
Aerial root mucilage can enhance nitrogen fixation by providing sugar and low oxygen environment to the rhizosphere microbiome in Sierra Mixe maize. Aerial root mucilage has long been documented in sorghum (Sorghum bicolor), but little is known about the biological significance, genotypic variation, and genetic regulation of this biological process. In the present study, we found that a large variation of mucilage secretion capacity existed in a sorghum panel consisting of 146 accessions. Mucilage secretion occurred primarily in young aerial roots under adequately humid conditions but decreased or stopped in mature long aerial roots or under dry conditions. The main components of the mucilage-soluble were glucose and fructose, as revealed by sugar profiling of cultivated and wild sorghum. The mucilage secretion capacity of landrace grain sorghum was significantly higher than that of wild sorghum. Transcriptome analysis revealed that 1844 genes were upregulated and 2617 genes were downregulated in mucilage secreting roots. Amongst these 4461 differentially expressed genes, 82 genes belonged to glycosyltransferases and glucuronidation pathways. Sobic.010G120200, encoding a UDP-glycosyltransferase, was identified by both GWAS and transcriptome analysis as a candidate gene, which may be involved in the regulation of mucilage secretion in sorghum through a negative regulatory mechanism.
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Affiliation(s)
- Si Xu
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Science, Beijing, 100093, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiu-Qing Li
- Fredericton Research and Development Centre, Agriculture and Agri-Food Canada, Fredericton, NB, E3B 4Z7, Canada
- Canada Forage International Inc., Fredericton, NB, Canada
| | - Hong Guo
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Science, Beijing, 100093, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiao-Yuan Wu
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Science, Beijing, 100093, China
| | - Ning Wang
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Science, Beijing, 100093, China
| | - Zhi-Quan Liu
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Science, Beijing, 100093, China
- Engineering Laboratory for Grass-Based Livestock Husbandry, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China
| | - Huai-Qing Hao
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Science, Beijing, 100093, China.
- University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Hai-Chun Jing
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Science, Beijing, 100093, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
- Engineering Laboratory for Grass-Based Livestock Husbandry, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China
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5
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Goksen G, Demir D, Dhama K, Kumar M, Shao P, Xie F, Echegaray N, Lorenzo JM. Mucilage polysaccharide as a plant secretion: Potential trends in food and biomedical applications. Int J Biol Macromol 2023; 230:123146. [PMID: 36610576 DOI: 10.1016/j.ijbiomac.2023.123146] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 12/05/2022] [Accepted: 01/01/2023] [Indexed: 01/05/2023]
Abstract
Current trends are shifting away from using synthetic compounds in favor of discovering new natural component sources that will allow them to create goods that are healthful, environmentally friendly, sustainable, and profitable. The food industry, in light of these trends, has opted to look for safe natural ingredients that will allow the production of low-fat, artificial-additive-free, gluten-free, prebiotic, and fortified foods. Similarly, the pharmaceutical and medical industries have attempted to apply natural ingredients to address the challenges related to biomaterials more efficiently than synthetic ingredients. Against this background, plant mucilage has proven to be a polysaccharide with excellent health features and technological properties, useful for both food and biomedical applications. Many studies have shown that its inclusion in different food matrices improves the quality of the products obtained under appropriate reformulations. At the same time, plant mucilage has been indicated to be a very interesting matrix in biomedical field especially tissue engineering applications since it has been emerged to favor tissue regeneration with its highly biocompatible structure. This concise review discusses the most recent advances of the applications of plant mucilage in different foods as well as its recent use in biomedical field. In this context, firstly, a general definition of mucilage was made and information about plant-based mucilage, which is frequently used, about the plant parts they are found in, their content and how they are obtained are presented. Then, the use of mucilage in the food industry including bakery products, meat emulsions, fermented dairy products, ice cream, and other foods is presented with case studies. Afterwards, the use of plant mucilage in the biomedical field, which has attracted attention in recent years, especially in applications with tissue engineering approach such as scaffolds for tissue regeneration, wound dressings, drug delivery systems and pharmaceutical industry was evaluated.
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Affiliation(s)
- Gulden Goksen
- Department of Food Technology, Vocational School of Technical Sciences at Mersin Tarsus Organized Industrial Zone, Tarsus University, 33100 Mersin, Turkey
| | - Didem Demir
- Department of Chemistry and Chemical Process Technologies, Vocational School of Technical Sciences at Mersin Tarsus Organized Industrial Zone, Tarsus University, 33100 Mersin, Turkey
| | - Kuldeep Dhama
- Division of Pathology, ICAR-Indian Veterinary Research Institute (IVRI), Izatnagar, 243122 Bareilly, Uttar Pradesh, India
| | - Manoj Kumar
- Chemical and Biochemical Processing Division, ICAR-Central Institute for Research on Cotton Technology, Mumbai 400019, India
| | - Ping Shao
- Department of Food Science and Technology, Zhejiang University of Technology, Zhejiang, Hangzhou 310014, PR China
| | - Fengwei Xie
- School of Engineering, Newcastle University, Newcastle upon Tyne NE1 7RU, United Kingdom
| | - Noemí Echegaray
- Centro Tecnológico de la Carne de Galicia, Parque Tecnológico de Galicia, San Cibrao das Viñas, Avd. Galicia N° 4, 32900 Ourense, Spain
| | - Jose Manuel Lorenzo
- Centro Tecnológico de la Carne de Galicia, Parque Tecnológico de Galicia, San Cibrao das Viñas, Avd. Galicia N° 4, 32900 Ourense, Spain; Área de Tecnología de los Alimentos, Facultad de Ciencias de Ourense, Universidade de Vigo, 32004 Ourense, Spain.
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6
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Alsakhawy MA, Abdelmonsif DA, Haroun M, Sabra SA. Naringin-loaded Arabic gum/pectin hydrogel as a potential wound healing material. Int J Biol Macromol 2022; 222:701-714. [PMID: 36170930 DOI: 10.1016/j.ijbiomac.2022.09.200] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 09/13/2022] [Accepted: 09/22/2022] [Indexed: 11/26/2022]
Abstract
Wound healing is a complicated cellular process with overlapping phases. Naringin (NAR); a flavanone glycoside, possesses numerous pharmacological effects such as anti-inflammatory, antioxidant and anti-apoptotic effects. In the current study, Arabic gum (AG)/pectin hydrogel was utilized to encapsulate NAR. Drug-loaded AG/pectin hydrogel exhibited excellent EE% of about 99.88 ± 0.096 and high DL% of about 16.64 ± 0.013. The formulated drug-loaded hydrogel was characterized using Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), scanning electron microscopy (SEM) and Zetasizer analyzer, besides determination of equilibrium degree of swelling (EDS%). Afterwards, wound healing potential of NAR-loaded AG/pectin hydrogel was evaluated in an in vivo animal model. Results manifested that NAR-loaded AG/pectin hydrogel was able to accelerate wound healing in terms of enhanced angiogenesis, re-epithelialization and collagen deposition. Furthermore, it significantly (P < 0.001) down-regulated the mRNA expression of inflammatory mediators (TNF-α) and apoptosis (BAX). In addition, NAR-loaded AG/pectin hydrogel was found to possess potent antioxidant activity as it enhanced the levels of SOD and GSH, besides decreasing the levels of MPO, MDA and nitrite. These data suggest that NAR-loaded AG/pectin hydrogel could be utilized in wound healing applications.
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Affiliation(s)
- Marwa A Alsakhawy
- Department of Biotechnology, Institute of Graduate studies and Research, Alexandria University, Alexandria 21526, Egypt
| | - Doaa A Abdelmonsif
- Department of Medical Biochemistry, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Medhat Haroun
- Department of Biotechnology, Institute of Graduate studies and Research, Alexandria University, Alexandria 21526, Egypt
| | - Sally A Sabra
- Department of Biotechnology, Institute of Graduate studies and Research, Alexandria University, Alexandria 21526, Egypt.
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7
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Majcher MJ, Himbert S, Vito F, Campea MA, Dave R, Vetergaard Jensen G, Rheinstadter MC, Smeets NMB, Hoare T. Investigating the Kinetics and Structure of Network Formation in Ultraviolet-Photopolymerizable Starch Nanogel Network Hydrogels via Very Small-Angle Neutron Scattering and Small-Amplitude Oscillatory Shear Rheology. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c00874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Michael J. Majcher
- Department of Chemical Engineering, McMaster University, 1280 Main St. W., Hamilton, Ontario L8S 4L8, Canada
| | - Sebastian Himbert
- Department of Physics & Astronomy, McMaster University, 1280 Main St. W., Hamilton, Ontario L8S 4L8, Canada
| | - Francesco Vito
- Department of Chemical Engineering, McMaster University, 1280 Main St. W., Hamilton, Ontario L8S 4L8, Canada
| | - Matthew A. Campea
- Department of Chemical Engineering, McMaster University, 1280 Main St. W., Hamilton, Ontario L8S 4L8, Canada
| | - Ridhdhi Dave
- Department of Chemical Engineering, McMaster University, 1280 Main St. W., Hamilton, Ontario L8S 4L8, Canada
| | - Grethe Vetergaard Jensen
- NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899-6100, United States
| | - Maikel C. Rheinstadter
- Department of Physics & Astronomy, McMaster University, 1280 Main St. W., Hamilton, Ontario L8S 4L8, Canada
| | - Niels M. B. Smeets
- Department of Chemical Engineering, McMaster University, 1280 Main St. W., Hamilton, Ontario L8S 4L8, Canada
| | - Todd Hoare
- Department of Chemical Engineering, McMaster University, 1280 Main St. W., Hamilton, Ontario L8S 4L8, Canada
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8
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Kelly SD, Opell BD, Correa-Garwhal SM. Correlated evolution between orb weaver glue droplets and supporting fibres maintains their distinct biomechanical roles in adhesion. J Evol Biol 2022; 35:879-890. [PMID: 35694995 PMCID: PMC9327512 DOI: 10.1111/jeb.14025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 03/31/2022] [Accepted: 05/04/2022] [Indexed: 12/01/2022]
Abstract
Orb weaving spiders employ a 'silken toolkit' to accomplish a range of tasks, including retaining prey that strike their webs. This is accomplished by a viscous capture spiral thread that features tiny glue droplets, supported by a pair of elastic flagelliform fibres. Each droplet contains a glycoprotein core responsible for adhesion. However, prey retention relies on the integrated performance of multiple glue droplets and their supporting fibres, with previous studies demonstrating that a suspension bridge forms, whose biomechanics sum the adhesive forces of multiple droplets while dissipating the energy of the struggling insect. While the interdependence of the droplet's glycoprotein and flagelliform fibres for functional adhesion is acknowledged, there has been no direct test of this hypothesized linkage between the material properties of each component. Spider mass, which differs greatly across orb weaving species, also has the potential to affect flagelliform fibre and glycoprotein material properties. Previous studies have linked spider mass to capture thread performance but have not examined the relationship between spider mass and thread material properties. We extend earlier studies to examine these relationships in 16 orb weaving species using phylogenetic generalized least squares. This analysis revealed that glycoprotein stiffness (elastic modulus) was correlated with flagelliform fibre stiffness, and that spider mass was related to the glycoprotein volume, flagelliform fibre cross-sectional area and droplets per unit thread length. By shaping the elastic moduli of glycoprotein adhesive and flagelliform fibres, natural selection has maintained the biomechanical integration of this adhesive system.
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Affiliation(s)
- Sean D Kelly
- Department of Biology, San Diego State University, San Diego, California, USA.,Evolution, Ecology, and Organismal Biology Department, University of California Riverside, Riverside, California, USA
| | - Brent D Opell
- Department of Biological Sciences, Virginia Tech, Blacksburg, Virginia, USA
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9
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Lutz TM, Kimna C, Casini A, Lieleg O. Bio-based and bio-inspired adhesives from animals and plants for biomedical applications. Mater Today Bio 2022; 13:100203. [PMID: 35079700 PMCID: PMC8777159 DOI: 10.1016/j.mtbio.2022.100203] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 01/08/2022] [Accepted: 01/08/2022] [Indexed: 01/01/2023] Open
Abstract
With the "many-headed" slime mold Physarum polycelphalum having been voted the unicellular organism of the year 2021 by the German Society of Protozoology, we are reminded that a large part of nature's huge variety of life forms is easily overlooked - both by the general public and researchers alike. Indeed, whereas several animals such as mussels or spiders have already inspired many scientists to create novel materials with glue-like properties, there is much more to discover in the flora and fauna. Here, we provide an overview of naturally occurring slimy substances with adhesive properties and categorize them in terms of the main chemical motifs that convey their stickiness, i.e., carbohydrate-, protein-, and glycoprotein-based biological glues. Furthermore, we highlight selected recent developments in the area of material design and functionalization that aim at making use of such biological compounds for novel applications in medicine - either by conjugating adhesive motifs found in nature to biological or synthetic macromolecules or by synthetically creating (multi-)functional materials, which combine adhesive properties with additional, problem-specific (and sometimes tunable) features.
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Affiliation(s)
- Theresa M. Lutz
- School of Engineering and Design, Department of Materials Engineering, Technical University of Munich, Boltzmannstraße 15, Garching, 85748, Germany
- Center for Protein Assemblies, Technical University of Munich, Ernst-Otto-Fischer Str. 8, Garching, 85748, Germany
| | - Ceren Kimna
- School of Engineering and Design, Department of Materials Engineering, Technical University of Munich, Boltzmannstraße 15, Garching, 85748, Germany
- Center for Protein Assemblies, Technical University of Munich, Ernst-Otto-Fischer Str. 8, Garching, 85748, Germany
| | - Angela Casini
- Chair of Medicinal and Bioinorganic Chemistry, Department of Chemistry, Technical University of Munich, Lichtenbergstraße 4, Garching, 85748, Germany
| | - Oliver Lieleg
- School of Engineering and Design, Department of Materials Engineering, Technical University of Munich, Boltzmannstraße 15, Garching, 85748, Germany
- Center for Protein Assemblies, Technical University of Munich, Ernst-Otto-Fischer Str. 8, Garching, 85748, Germany
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10
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Kang V, Isermann H, Sharma S, Wilson DI, Federle W. How a sticky fluid facilitates prey retention in a carnivorous pitcher plant (Nepenthes rafflesiana). Acta Biomater 2021; 128:357-369. [PMID: 33862281 DOI: 10.1016/j.actbio.2021.04.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 03/29/2021] [Accepted: 04/06/2021] [Indexed: 11/29/2022]
Abstract
Nepenthes pitcher plants grow in nutrient-poor soils and produce large pitfall traps to obtain additional nutrients from animal prey. Previous research has shown that the digestive secretion in N. rafflesiana is a sticky viscoelastic fluid that retains insects much more effectively than water, even after significant dilution. Although the retention of prey is known to depend on the fluid's physical properties, the details of how the fluid interacts with insect cuticle and how its sticky nature affects struggling insects are unclear. In this study, we investigated the mechanisms behind the efficient prey retention in N. rafflesiana pitcher fluid. By measuring the attractive forces on insect body parts moved in and out of test fluids, we show that it costs insects more energy to free themselves from pitcher fluid than from water. Moreover, both the maximum force and the energy required for retraction increased after the first contact with the pitcher fluid. We found that insects sink more easily into pitcher fluid than water and, accordingly, the surface tension of N. rafflesiana pitcher fluid was lower than that of water (60.2 vs. 72.3 mN/m). By analysing the pitcher fluid's wetting behaviour, we demonstrate that it strongly resists dewetting from all surfaces tested, leaving behind residual films and filaments that can facilitate re-wetting. This inhibition of dewetting may be a further consequence of the fluid's viscoelastic nature and likely represents a key mechanism underlying prey retention in Nepenthes pitcher plants. STATEMENT OF SIGNIFICANCE: Carnivorous Nepenthes pitcher plants secrete sticky viscoelastic fluids that prevent insects from escaping after falling into the pitcher. What physical mechanisms are responsible for the fluid's retentive function? First, insects sink and drown more readily in N. rafflesiana pitcher fluid due to its reduced surface tension. Second, once within the fluid, our force measurements show that it costs more energy to separate insects from pitcher fluid than from water. Third, the fluid strongly resists dewetting, making it harder for insects to extract themselves and covering their cuticle with residues that facilitate re-wetting. Such striking inhibition of dewetting may represent a previously unrecognised mechanism of prey retention by Nepenthes. Pitcher fluid fulfils a well-defined biological function and may serve as a model for studying the mechanics of complex fluids.
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Affiliation(s)
- Victor Kang
- Department of Zoology, University of Cambridge, Cambridge CB2 3EJ, United Kingdom.
| | - Hauke Isermann
- City University of Applied Sciences Bremen, Neustadtswall 30, 28199 Bremen, Germany
| | - Saksham Sharma
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge CB3 0AS, United Kingdom
| | - D Ian Wilson
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge CB3 0AS, United Kingdom
| | - Walter Federle
- Department of Zoology, University of Cambridge, Cambridge CB2 3EJ, United Kingdom
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11
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Zhang L, Yin H, Lei X, Lau JNY, Yuan M, Wang X, Zhang F, Zhou F, Qi S, Shu B, Wu J. A Systematic Review and Meta-Analysis of Clinical Effectiveness and Safety of Hydrogel Dressings in the Management of Skin Wounds. Front Bioeng Biotechnol 2019; 7:342. [PMID: 31824935 PMCID: PMC6881259 DOI: 10.3389/fbioe.2019.00342] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Accepted: 11/04/2019] [Indexed: 12/17/2022] Open
Abstract
The purpose of this systematic review and meta-analysis is to assess the clinical effectiveness and safety of the medical hydrogel dressings used in skin wounds and therefore to weight the evidence for their clinical application. PubMed/Medline (1980–2019), Cochrane Library (1980–2019), ClinicalTrials.gov, Cochrane CENTRAL, Chinese Journal Full-text Database (CNKI, 1994–2019), and China Biomedy Medicine disc (CBM, 1978–2019), Chinese Scientific Journal Database (VIP, 1989–2019), and Wanfang Database (WFDATA, 1980–2019) were searched to identify relevant clinical trials and studies. Forty-three studies that assessed hydrogel vs. non-hydrogel dressings were identified. Compared to the latter, hydrogel dressings associated with a significantly shortened healing time of degree II burn (superficial and deep) wounds, diabetic foot ulcers, traumatic skin injuries, radioactive skin injuries, dog bites, and body surface ulcers. In addition, hydrogel dressing obviously increased the cure rate of diabetic foot ulcers, surgical wounds, dog bites, and body surface ulcers. Moreover, hydrogel dressing significantly relieved pain in degree II burn (superficial and deep) wounds, traumatic skin injuries, and laser treatment-induced wounds. However, no significant differences obtained between hydrogel and non-hydrogel dressings in the healing time of surgical wounds, the cure rate of inpatients' pressure ulcers, and phlebitis ulcers. This comprehensive systematic review and meta-analysis of the available evidence reveals that the application of hydrogel dressings advances the healing of various wound types and effectively alleviates the pain with no severe adverse reactions. These results strongly indicate that hydrogel products are effective and safe in wound management.
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Affiliation(s)
- Lijun Zhang
- Department of Burns, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Hanxiao Yin
- Department of Burns, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xun Lei
- School of Public Health and Management, Chongqing Medical University, Chongqing, China
| | - Johnson N Y Lau
- University of Hong Kong, Hong Kong Polytechnic University, Kowloon, China
| | - Mingzhou Yuan
- Department of Burns, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xiaoyan Wang
- Department of Burns, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Fangyingnan Zhang
- Department of Burns, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Fei Zhou
- Department of Burns, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Shaohai Qi
- Department of Burns, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Bin Shu
- Department of Burns, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Jun Wu
- Department of Burns, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
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12
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Li M, Xi N, Wang Y, Liu L. Composite Nanostructures and Adhesion Analysis of Natural Plant Hydrogels Investigated by Atomic Force Microscopy. IEEE Trans Nanobioscience 2019; 18:448-455. [DOI: 10.1109/tnb.2019.2911044] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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13
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Rodziewicz P, Loroch S, Marczak Ł, Sickmann A, Kayser O. Cannabinoid synthases and osmoprotective metabolites accumulate in the exudates of Cannabis sativa L. glandular trichomes. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2019; 284:108-116. [PMID: 31084863 DOI: 10.1016/j.plantsci.2019.04.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 04/09/2019] [Accepted: 04/10/2019] [Indexed: 05/06/2023]
Abstract
Cannabinoids are terpenophenolic compounds produced by Cannabis sativa L., which accumulate in storage cavities of glandular trichomes as a part of the exudates. We investigated if tetrahydrocannabinolic acid synthase and cannabidiolic acid synthase, which are involved in the last step of cannabinoid biosynthesis, are also secreted into Cannabis trichome exudates. The exudates were collected by microsuction from storage cavities of Cannabis glandular trichomes and were subjected for proteomic and metabolomic analyses. The catalytic activity of the exudates was documented by cannabigerolic acid biotransformation studies under hydrophobic conditions. Electrophoretic separations revealed protein bands at ˜65 kDa, which were further identified as tetrahydrocannabinolic acid synthase and cannabidiolic acid synthase. The accumulation of the enzymes in trichome exudates increased substantially during the flowering period in the drug-type Cannabis plants. The content of cannabinoids increased significantly after incubating hexane-diluted trichome exudates with cannabigerolic acid. In this study, we showed that Cannabis glandular trichomes secrete and accumulate cannabinoid synthases in storage cavities, and the enzymes able to convert cannabigerolic acid under hydrophobic trichome-mimicking conditions. Metabolite profiling of the exudates revealed compounds with hydrophilic, osmoprotective and amphiphilic properties, which may play a role in providing a necessary aqueous microenvironment, which enables enzyme solubility and biocatalysis under hydrophobic conditions of glandular trichomes.
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Affiliation(s)
- Paweł Rodziewicz
- Department of Technical Biochemistry, Technical University Dortmund, Emil-Figge-Str. 66, 44227 Dortmund, Germany
| | - Stefan Loroch
- Leibniz-Institut für Analytische Wissenschaften - ISAS - e.V., Bunsen-Kirchhoff-Str. 11, 44139 Dortmund, Germany
| | - Łukasz Marczak
- European Centre for Bioinformatics and Genomics, Institute of Bioorganic Chemistry PAS, Piotrowo 2, 60-965 Poznan, Poland
| | - Albert Sickmann
- Leibniz-Institut für Analytische Wissenschaften - ISAS - e.V., Bunsen-Kirchhoff-Str. 11, 44139 Dortmund, Germany; Medizinische Fakultät, Ruhr-Universität Bochum, 44801 Bochum, Germany; Department of Chemistry, College of Physical Sciences, University of Aberdeen, Aberdeen, AB24 3FX, United Kingdom
| | - Oliver Kayser
- Department of Technical Biochemistry, Technical University Dortmund, Emil-Figge-Str. 66, 44227 Dortmund, Germany.
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14
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Orb weaver glycoprotein is a smart biological material, capable of repeated adhesion cycles. Naturwissenschaften 2019; 106:10. [DOI: 10.1007/s00114-019-1607-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Revised: 02/05/2019] [Accepted: 02/08/2019] [Indexed: 12/26/2022]
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15
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Song R, Murphy M, Li C, Ting K, Soo C, Zheng Z. Current development of biodegradable polymeric materials for biomedical applications. Drug Des Devel Ther 2018; 12:3117-3145. [PMID: 30288019 PMCID: PMC6161720 DOI: 10.2147/dddt.s165440] [Citation(s) in RCA: 378] [Impact Index Per Article: 63.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
In the last half-century, the development of biodegradable polymeric materials for biomedical applications has advanced significantly. Biodegradable polymeric materials are favored in the development of therapeutic devices, including temporary implants and three-dimensional scaffolds for tissue engineering. Further advancements have occurred in the utilization of biodegradable polymeric materials for pharmacological applications such as delivery vehicles for controlled/sustained drug release. These applications require particular physicochemical, biological, and degradation properties of the materials to deliver effective therapy. As a result, a wide range of natural or synthetic polymers able to undergo hydrolytic or enzymatic degradation is being studied for biomedical applications. This review outlines the current development of biodegradable natural and synthetic polymeric materials for various biomedical applications, including tissue engineering, temporary implants, wound healing, and drug delivery.
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Affiliation(s)
- Richard Song
- Division of Growth and Development, Section of Orthodontics, School of Dentistry, University of California, Los Angeles, Los Angeles, CA, USA,
| | - Maxwell Murphy
- Division of Growth and Development, Section of Orthodontics, School of Dentistry, University of California, Los Angeles, Los Angeles, CA, USA,
| | - Chenshuang Li
- Division of Growth and Development, Section of Orthodontics, School of Dentistry, University of California, Los Angeles, Los Angeles, CA, USA,
| | - Kang Ting
- Division of Growth and Development, Section of Orthodontics, School of Dentistry, University of California, Los Angeles, Los Angeles, CA, USA,
- UCLA Department of Surgery and Department of Orthopaedic Surgery and The Orthopaedic Hospital Research Center, University of California, Los Angeles, Los Angeles, CA, USA,
- UCLA Department of Bioengineering, School of Engineering, University of California, Los Angeles, Los Angeles, CA, USA
| | - Chia Soo
- UCLA Department of Surgery and Department of Orthopaedic Surgery and The Orthopaedic Hospital Research Center, University of California, Los Angeles, Los Angeles, CA, USA,
| | - Zhong Zheng
- Division of Growth and Development, Section of Orthodontics, School of Dentistry, University of California, Los Angeles, Los Angeles, CA, USA,
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Kokubun T. Occurrence of myo-inositol and alkyl-substituted polysaccharide in the prey-trapping mucilage of Drosera capensis. THE SCIENCE OF NATURE - NATURWISSENSCHAFTEN 2017; 104:83. [PMID: 28940006 PMCID: PMC5610204 DOI: 10.1007/s00114-017-1502-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Revised: 08/29/2017] [Accepted: 09/01/2017] [Indexed: 11/25/2022]
Abstract
The chemical composition of the exudate mucilage droplets of the carnivorous plant Drosera capensis was investigated using nuclear magnetic resonance spectroscopy. The mucilage was found to contain beside a very large molecular weight polysaccharide a significant amount of myo-inositol. It appears that myo-inositol escaped detection due to the commonly applied methodology on the chemical analysis of plant mucilage, such as dialysis, precipitation of polysaccharide component with alcohol, acid hydrolysis and detection of the resultant monosaccharide (aldose) units. The possible functions of myo-inositol in the mucilage droplets and the fate after being washed off from the leaf tentacles are proposed. On the polysaccharide component, the presence of methyl ester and alkyl chain-like moieties could be confirmed. These lipophilic moieties may provide the prey-trapping mucilage with the unique adhesive property onto the hydrophobic insect body parts, as well as onto the nature's well-known superhydrophobic surfaces such as the leaves of the sacred lotus plants. A re-evaluation of the mineral components of the mucilage, reported 40 years ago, is presented from the viewpoints of the current result and plants' natural habitat. A case for re-examination of the well-studied plant mucilaginous materials is made in light of the new findings.
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Affiliation(s)
- Tetsuo Kokubun
- Royal Botanic Gardens, Kew, Richmond, Surrey, TW9 3AB, UK.
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17
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Li M, Li H, Li X, Zhu H, Xu Z, Liu L, Ma J, Zhang M. A Bioinspired Alginate-Gum Arabic Hydrogel with Micro-/Nanoscale Structures for Controlled Drug Release in Chronic Wound Healing. ACS APPLIED MATERIALS & INTERFACES 2017; 9:22160-22175. [PMID: 28640580 PMCID: PMC5979260 DOI: 10.1021/acsami.7b04428] [Citation(s) in RCA: 82] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Biopolymeric hydrogels have drawn increasing research interest in biomaterials due to their tunable physical and chemical properties for both creating bioactive cellular microenvironment and serving as sustainable therapeutic reagents. Inspired by a naturally occurring hydrogel secreted from the carnivorous Sundew plant for trapping insects, here we have developed a bioinspired hydrogel to deliver mitsugumin 53 (MG53), an important protein in cell membrane repair, for chronic wound healing. Both chemical compositions and micro-/nanomorphological properties inherent from the natural Sundew hydrogel were mimicked using sodium alginate and gum arabic with calcium ion-mediated cross-linking. On the basis of atomic force microscopy (AFM) force measurements, an optimal sticky hydrogel scaffold was obtained through orthogonal experimental design. Imaging and mechanical analysis showed the distinct correlation between structural morphology, adhesion characteristics, and mechanical properties of the Sundew-inspired hydrogel. Combined characterization and biochemistry techniques were utilized to uncover the underlying molecular composition involved in the interactions between hydrogel and protein. In vitro drug release experiments confirmed that the Sundew-inspired hydrogel had a biphasic-kinetics release, which can facilitate both fast delivery of MG53 for improving the reepithelization process of the wounds and sustained release of the protein for treating chronic wounds. In vivo experiments showed that the Sundew-inspired hydrogel encapsulating with rhMG53 could facilitate dermal wound healing in mouse model. Together, these studies confirmed that the Sundew-inspired hydrogel has both tunable micro-/nanostructures and physicochemical properties, which enable it as a delivery vehicle for chronic wounding healing. The research may provide a new way to develop biocompatible and tunable biomaterials for sustainable drug release to meet the needs of biological activities.
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Affiliation(s)
- Mi Li
- Department of Biomedical Engineering, College of Engineering, Columbus, Ohio 43210, United States
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China
| | - Haichang Li
- Dorothy M. Davis Heart & Lung Research Institute, Wexner Medical Center, Columbus, Ohio 43210, United States
- Department of Surgery, The Ohio State University, Columbus, Ohio 43210, United States
| | - Xiangguang Li
- Dorothy M. Davis Heart & Lung Research Institute, Wexner Medical Center, Columbus, Ohio 43210, United States
- Department of Surgery, The Ohio State University, Columbus, Ohio 43210, United States
- College of Animal Science, South China Agricultural University, Guangzhou 510642, China
| | - Hua Zhu
- Dorothy M. Davis Heart & Lung Research Institute, Wexner Medical Center, Columbus, Ohio 43210, United States
- Department of Surgery, The Ohio State University, Columbus, Ohio 43210, United States
| | - Zihui Xu
- Department of Biomedical Engineering, College of Engineering, Columbus, Ohio 43210, United States
| | - Lianqing Liu
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China
| | - Jianjie Ma
- Dorothy M. Davis Heart & Lung Research Institute, Wexner Medical Center, Columbus, Ohio 43210, United States
- Department of Surgery, The Ohio State University, Columbus, Ohio 43210, United States
| | - Mingjun Zhang
- Department of Biomedical Engineering, College of Engineering, Columbus, Ohio 43210, United States
- Dorothy M. Davis Heart & Lung Research Institute, Wexner Medical Center, Columbus, Ohio 43210, United States
- Interdisciplinary Biophysics Graduate Program, Columbus, Ohio 43210, United States
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18
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Yin H, Ding G, Shi X, Guo W, Ni Z, Fu H, Fu Z. A bioengineered drug-Eluting scaffold accelerated cutaneous wound healing In diabetic mice. Colloids Surf B Biointerfaces 2016; 145:226-231. [DOI: 10.1016/j.colsurfb.2016.04.056] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Revised: 04/29/2016] [Accepted: 04/30/2016] [Indexed: 02/07/2023]
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19
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Wu JG, Zhang X, Liu J, Xiong M, Lu XY, Fan HD, Wang XF, Zhang XY. Medium density fibreboard production by hot pressing without adhesive using Triarrhena sacchariflora residue bio-pretreated by white-rot fungus Coriolus versicolor. J Appl Microbiol 2016; 121:415-21. [PMID: 27028564 DOI: 10.1111/jam.13148] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Revised: 03/01/2016] [Accepted: 03/28/2016] [Indexed: 12/01/2022]
Abstract
AIMS To produce fibreboard with Triarrhena sacchariflora residue (TSR) without adhesive and understand the relationship between bio-pretreatment and mechanical property of fibreboard. METHODS AND RESULTS White-rot fungus Coriolus versicolor was used to pretreat TSR, and biochemical and physical analysis were investigated by ultraviolet spectrophotometry, Fourier transform infrared spectroscopy and environmental scanning electron microscopy method. CONCLUSIONS TSR was suitable to produce fibreboard without adhesive by bio-pretreatment with C. versicolor. The property of fibreboard became stronger by optimization of bio-pretreatment parameters, and the moduli of rupture and elasticity of fibreboard were increased to 18·12 MPa and 4·3 GPa, respectively, which were close to national standard of medium-density fibreboard with adhesive. Bio-pretreated TSR increased the mechanical properties of fibreboard because of 1·4-fold content of polysaccharide and 1·15 U g(-1) laccase, more hydroxyl group and more porous surface structure than that of untreated TSR. SIGNIFICANCE AND IMPACT OF THE STUDY TSR-based fibreboard production without adhesive eliminated potential formaldehyde gas emission.
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Affiliation(s)
- J G Wu
- Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, Jiangsu Key Laboratory for Biomass-based Energy and Enzyme Technology, School of Life Science, Huaiyin Normal University, Huai'an, China.,Jiangsu Collaborative Innovation Center of Regional Modern Agriculture and Environmental Protection, Huaiyin Normal University, Huai'an, China
| | - X Zhang
- Key Laboratory of Molecular Biophysics of MOE, Huazhong University of Science and Technology, Wuhan, China
| | - J Liu
- Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, Jiangsu Key Laboratory for Biomass-based Energy and Enzyme Technology, School of Life Science, Huaiyin Normal University, Huai'an, China
| | - M Xiong
- Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, Jiangsu Key Laboratory for Biomass-based Energy and Enzyme Technology, School of Life Science, Huaiyin Normal University, Huai'an, China
| | - X Y Lu
- Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, Jiangsu Key Laboratory for Biomass-based Energy and Enzyme Technology, School of Life Science, Huaiyin Normal University, Huai'an, China
| | - H D Fan
- Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, Jiangsu Key Laboratory for Biomass-based Energy and Enzyme Technology, School of Life Science, Huaiyin Normal University, Huai'an, China
| | - X F Wang
- Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, Jiangsu Key Laboratory for Biomass-based Energy and Enzyme Technology, School of Life Science, Huaiyin Normal University, Huai'an, China.,Jiangsu Collaborative Innovation Center of Regional Modern Agriculture and Environmental Protection, Huaiyin Normal University, Huai'an, China
| | - X Y Zhang
- Key Laboratory of Molecular Biophysics of MOE, Huazhong University of Science and Technology, Wuhan, China
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20
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Slippery when sticky: Lubricating properties of thin films of Taxus baccata aril mucilage. Biointerphases 2016; 11:011010. [PMID: 26903309 DOI: 10.1116/1.4942208] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Mucilage is hydrogel produced from succulent plants and microorganisms displaying unique adhesiveness and slipperiness simultaneously. The objective of this study is to establish an understanding on the lubricating mechanisms of the mucilage from Taxus baccata aril as thin, viscous lubricant films. Oscillation and flow rheological studies revealed that T. baccata mucilage is shear-thinning, thixotropic, and weak hydrogel that is highly stretchable under shear stress due to its high density physical crosslinking characteristics. In addition, T. baccata mucilage showed a distinct Weissenberg effect, i.e., increasing normal force with increasing shear rate, and thus it contributes to deplete the lubricant from tribological interfaces. Lubrication studies with a number of tribopairs with varying mechanical properties and surface wettability have shown that the lubricity of T. baccata mucilage is most effectively manifested at soft, hydrophilic, and rolling tribological contacts. Based on tenacious spreading on highly wetting surfaces, slip plane can be formed within mucilage hydrogel network even when the lubricating films cannot completely separate the opposing surfaces. Moreover, highly stretchable characteristics of mucilage under high shear enhance smooth shearing of two opposing surfaces as lubricating film.
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21
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Sun L, Huang Y, Bian Z, Petrosino J, Fan Z, Wang Y, Park KH, Yue T, Schmidt M, Galster S, Ma J, Zhu H, Zhang M. Sundew-Inspired Adhesive Hydrogels Combined with Adipose-Derived Stem Cells for Wound Healing. ACS APPLIED MATERIALS & INTERFACES 2016; 8:2423-2434. [PMID: 26731614 PMCID: PMC5139680 DOI: 10.1021/acsami.5b11811] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The potential to harness the unique physical, chemical, and biological properties of the sundew (Drosera) plant's adhesive hydrogels has long intrigued researchers searching for novel wound-healing applications. However, the ability to collect sufficient quantities of the sundew plant's adhesive hydrogels is problematic and has eclipsed their therapeutic promise. Inspired by these natural hydrogels, we asked if sundew-inspired adhesive hydrogels could overcome the drawbacks associated with natural sundew hydrogels and be used in combination with stem-cell-based therapy to enhance wound-healing therapeutics. Using a bioinspired approach, we synthesized adhesive hydrogels comprised of sodium alginate, gum arabic, and calcium ions to mimic the properties of the natural sundew-derived adhesive hydrogels. We then characterized and showed that these sundew-inspired hydrogels promote wound healing through their superior adhesive strength, nanostructure, and resistance to shearing when compared to other hydrogels in vitro. In vivo, sundew-inspired hydrogels promoted a "suturing" effect to wound sites, which was demonstrated by enhanced wound closure following topical application of the hydrogels. In combination with mouse adipose-derived stem cells (ADSCs) and compared to other therapeutic biomaterials, the sundew-inspired hydrogels demonstrated superior wound-healing capabilities. Collectively, our studies show that sundew-inspired hydrogels contain ideal properties that promote wound healing and suggest that sundew-inspired-ADSCs combination therapy is an efficacious approach for treating wounds without eliciting noticeable toxicity or inflammation.
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Affiliation(s)
- Leming Sun
- Department of Biomedical Engineering, College of Engineering, The Ohio State University, Columbus, Ohio 43210, United States
- Dorothy M. Davis Heart & Lung Research Institute, The Ohio State University, Columbus, Ohio 43210, United States
| | - Yujian Huang
- Department of Biomedical Engineering, College of Engineering, The Ohio State University, Columbus, Ohio 43210, United States
- Dorothy M. Davis Heart & Lung Research Institute, The Ohio State University, Columbus, Ohio 43210, United States
| | - Zehua Bian
- Dorothy M. Davis Heart & Lung Research Institute, The Ohio State University, Columbus, Ohio 43210, United States
- Department of Surgery, The Ohio State University, Columbus, Ohio 43210, United States
| | - Jennifer Petrosino
- Biomedical Sciences Graduate Program, College of Medicine, The Ohio State University, Columbus, Ohio 43210, United States
| | - Zhen Fan
- Department of Biomedical Engineering, College of Engineering, The Ohio State University, Columbus, Ohio 43210, United States
- Dorothy M. Davis Heart & Lung Research Institute, The Ohio State University, Columbus, Ohio 43210, United States
| | - Yongzhong Wang
- Department of Biomedical Engineering, College of Engineering, The Ohio State University, Columbus, Ohio 43210, United States
- Dorothy M. Davis Heart & Lung Research Institute, The Ohio State University, Columbus, Ohio 43210, United States
| | - Ki Ho Park
- Dorothy M. Davis Heart & Lung Research Institute, The Ohio State University, Columbus, Ohio 43210, United States
- Department of Surgery, The Ohio State University, Columbus, Ohio 43210, United States
| | - Tao Yue
- Department of Biomedical Engineering, College of Engineering, The Ohio State University, Columbus, Ohio 43210, United States
- Dorothy M. Davis Heart & Lung Research Institute, The Ohio State University, Columbus, Ohio 43210, United States
| | - Michael Schmidt
- Department of Biomedical Engineering, College of Engineering, The Ohio State University, Columbus, Ohio 43210, United States
| | - Scott Galster
- 711th Human Performance Wing, Air Force Research Laboratory, Wright-Patterson AFB, Ohio 45433-7901, United States
| | - Jianjie Ma
- Dorothy M. Davis Heart & Lung Research Institute, The Ohio State University, Columbus, Ohio 43210, United States
- Department of Surgery, The Ohio State University, Columbus, Ohio 43210, United States
| | - Hua Zhu
- Dorothy M. Davis Heart & Lung Research Institute, The Ohio State University, Columbus, Ohio 43210, United States
- Department of Surgery, The Ohio State University, Columbus, Ohio 43210, United States
- Interdisciplinary Biophysics Graduate Program, The Ohio State University, Columbus, Ohio 43210, United States
| | - Mingjun Zhang
- Department of Biomedical Engineering, College of Engineering, The Ohio State University, Columbus, Ohio 43210, United States
- Dorothy M. Davis Heart & Lung Research Institute, The Ohio State University, Columbus, Ohio 43210, United States
- Interdisciplinary Biophysics Graduate Program, The Ohio State University, Columbus, Ohio 43210, United States
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22
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Huang Y, Wang YJ, Wang Y, Yi S, Fan Z, Sun L, Lin D, Anreddy N, Zhu H, Schmidt M, Chen ZS, Zhang M. Exploring naturally occurring ivy nanoparticles as an alternative biomaterial. Acta Biomater 2015. [PMID: 26219859 DOI: 10.1016/j.actbio.2015.07.035] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Arabinoglactan protein (AGP)-rich nanoparticles obtained from the sticky exudates of Hedera helix (English ivy), have shown promising potential to be used in nanomedicine owing to their excellent aqueous solubility, low intrinsic viscosity, biocompatibility, and biodegradability. In this study, the feasibilities of utilizing ivy nanoparticles (INPs) as nano-carriers for delivering chemotherapeutic drugs in cancer therapy and as nano-fillers to develop novel scaffolds for tissue engineering in regenerative medicine are evaluated. Via electrostatic and hydrophobic interactions, pH-responsive nanoconjugates are formed between the INPs and the doxorubicin (DOX) with an entrapment ratio of 77.9±3.9%. While the INPs show minimal cytotoxicity, the formed INP-DOX conjugates exhibit substantially stronger cytotoxic activity than free DOX against multiple cancer cell lines, suggesting a synergistic effect is established upon conjugation. The anti-cancer effects of the INP-DOX conjugates are further evaluated via in vivo xenograft assays by subcutaneously implanting DOX resistant cell line, SW620/Ad-300, into nude mice. The tumor volumes in mice treated with the INP-DOX conjugates are significantly less than those of the mice treated with free DOX. In addition, the INPs are further exploited as nano-fillers to develop fibrous scaffolds with collagen, via mimicking the porous matrix where the INPs are embedded under natural condition. Enhanced adhesion of smooth muscle cells (SMCs) and accelerated proliferation of mouse aortic SMCs are observed in this newly constructed scaffold. Overall, the results obtained from the present study suggest great potential of the INPs to be used as biocompatible nanomaterials in nanomedicine. The AGP-rich INP renders a glycoprotein architecture that is amenable for modification according to the functional designs, capable of being developed as versatile nanomaterials for extensive biomedical applications. STATEMENT OF SIGNIFICANCE Naturally occurring organic nanomaterials have drawn increasing interest for their potential biomedical applications in recent years. In this study, a new type of naturally occurring nanoparticles obtained from the sticky exudates on the adventitious roots of English ivy (H. helix), was explored for its potential biomedical application. In particular, the feasibilities of utilizing ivy nanoparticles (INPs) as nano-carriers for delivering chemotherapeutic drugs in cancer therapy and as nano-fillers to develop novel scaffolds for tissue engineering in regenerative medicine were evaluated both in vitro and in vivo. Overall, the results obtained from the present study suggest the great potential of the INPs to be used as biocompatible nanomaterials in nanomedicine. This study may open a totally new frontier for exploring the biomedical application of naturally occurring nanomaterials.
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Affiliation(s)
- Yujian Huang
- Department of Biomedical Engineering, College of Engineering, The Ohio State University, Columbus, OH 43210, USA; Dorothy M. Davis Heart & Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA; Interdisciplinary Biophysics Graduate Program, The Ohio State University, Columbus, OH 43210, USA
| | - Yi-Jun Wang
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, Queens, NY 11439, USA
| | - Yongzhong Wang
- Department of Biomedical Engineering, College of Engineering, The Ohio State University, Columbus, OH 43210, USA; Dorothy M. Davis Heart & Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA; Interdisciplinary Biophysics Graduate Program, The Ohio State University, Columbus, OH 43210, USA
| | - Sijia Yi
- Chemistry of Life Processes Institute, Northwestern University, Evanston, IL 60208, USA
| | - Zhen Fan
- Department of Biomedical Engineering, College of Engineering, The Ohio State University, Columbus, OH 43210, USA; Dorothy M. Davis Heart & Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA; Interdisciplinary Biophysics Graduate Program, The Ohio State University, Columbus, OH 43210, USA
| | - Leming Sun
- Department of Biomedical Engineering, College of Engineering, The Ohio State University, Columbus, OH 43210, USA; Dorothy M. Davis Heart & Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA; Interdisciplinary Biophysics Graduate Program, The Ohio State University, Columbus, OH 43210, USA
| | - Derrick Lin
- Department of Biomedical Engineering, College of Engineering, The Ohio State University, Columbus, OH 43210, USA
| | - Nagaraju Anreddy
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, Queens, NY 11439, USA
| | - Hua Zhu
- Dorothy M. Davis Heart & Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
| | - Michael Schmidt
- Department of Biomedical Engineering, College of Engineering, The Ohio State University, Columbus, OH 43210, USA
| | - Zhe-Sheng Chen
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, Queens, NY 11439, USA
| | - Mingjun Zhang
- Department of Biomedical Engineering, College of Engineering, The Ohio State University, Columbus, OH 43210, USA; Dorothy M. Davis Heart & Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA; Interdisciplinary Biophysics Graduate Program, The Ohio State University, Columbus, OH 43210, USA.
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