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Showing 1 to 20 of 22 for “"natural polymers"”.
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Strategies to design and optimize natural polymers as biomaterial inks for musculoskeletal tissue engineering applications
… the design and optimization of inks derived from natural polymers, aiming to address critical challenges in printability and biocompatibility for bone tissue engineering applications. Most of the research was carried out on silk fibroin, a protein commonly used for tissue engineering scaffold …
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The development of novel hybrid poly (2-oxazoline)-based bioinks for 3D bioprinting: a comparative study with Pluronic F127
… implementation and clinical transformation. Natural polymers, such as chitosan and alginate, are commonly used as bioinks due to their biocompatibility, biodegradability and similarity to extracellular matrix (ECM). These natural polymers are usually limited by their mechanical strength and …
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Determining Single Fiber Nanomechanical Properties of Electrospun Protein Fibers and Modified Fibrin Fibers Using Atomic Force Microscopy
… the structural support of a blood clot. These natural polymers, along with synthetic polymers, can be synthesized outside the body by a process known as electrospinning. Electrospinning can be used to make nanofibers which form the macrostructure scaffold to be tailored to specific …
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Core-Sheath Differentially Biodegradable Nanofiber Structures for Tissue Engineering
… for engineering tissues. Various biodegradable polymers of natural and synthetic origins have been used to construct the nanofiber scaffolds. The use of natural polymers is important in that they contain specific cell recognition sites that are capable of binding cells. Synthetic biodegradable …
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Architectural scale biomimetic composites based on chitosan and alginate hydrogels
… architectural scale digital fabrication using natural bioplastics and hierarchical computational design carried out by the Mediated Matter team, led by Laia Mogas-Soldevila and Jorge Duro-Royo. Chitosan and alginate (among other natural polymers) are processed from shellfish waste and algae, …
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In Situe Synthesis of Iron Oxide within Polyvinylamine nanoparticles
… has already been proven. Several synthetic and natural polymers have been employed to stabilize magnetite nanoparticles and enhance their function in vivo. The goal of this work has been to develop a unique methodology for synthesizing magnetite within polymer nanoparticle dispersions so that …
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Synthesis and application of a grafted flocculant produced from a chemical combination of a bioflocculant TKT and acrylamide (AM)
… and hazardous to the environment. Moreover, natural polymers (bioflocculants) are not toxic and are biodegradable. Nevertheless, these flocculants need to be suitably controlled because biodegradability reduces their shelf-life. Through grafting synthetic polymers onto a backbone of natural …
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Adsorption of Biomacromolecules onto Polysaccharide Surfaces
Plant cell wall polysaccharides are abundant natural polymers making them potential sources for sustainable and biodegradable materials. Interfacial behavior, including adsorption and enzymatic degradation, of several plant cell wall polysaccharides and their derivatives were studied with a quartz …
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Interactions of Chitin and Lignin Thin Films with Other Molecules
As two of the most abundant natural polymers, chitin and lignin not only play critical roles in fungal and plant cell walls but are also important functional materials and promising feedstocks for a variety of chemicals. This study investigated the interactions of chitin and lignin thin films with …
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Natural Polymeric Carriers for Local Delivery of Therapeutic Agents to Promote Enhanced Bone Regeneration
… For this reason, we developed an alternative natural polymer rhBMP-2 carrier from keratin. Keratin can be formed into a number of biomaterials which have advantages over collagen including controlled rates of degradation, flexible material properties, and tunable rates of rhBMP-2 delivery. In …
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Quartz Crystal Microbalance with Dissipation Monitoring Applications in Polymer Thin Films Analysis
Natural and synthetic polymers are highly related to people's daily life in every perspective and determine everyone's life quality. This study investigated the interactions between polymer thin films and other molecules, specifically natural polymer films with other components in plant and fungal …
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Studies of polysaccharide adsorption onto model cellulose surfaces and self-assembled monolayers by surface plasmon resonance spectroscopy
… surfaces. Collectively, these studies showed natural polymers could be chemically modified to produce surface modifying agents with sufficient chemical control, whereby the surface properties of the resulting systems could be explained in terms of chemical structure and intermolecular …
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Polysaccharide-Based Nanocarriers for Improved Drug Delivery
… Polysaccharides are non-toxic and biodegradable natural polymers that can serve as the basis for these nano-sized carriers. Polysialic acid (PSA) is such a polysaccharide with strong hydrophilicity that may reduce uptake by the reticuloendothelial system and prolong drug circulation. In this …
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Investigating the characterisation and stability of polyamide 6,6 in heritage artefacts
… are frequently found in conjunction with natural organic materials, and are often exposed to the same pest treatments as natural polymers. In the event of an infestation there are a number of eradication measures possible, including the application of raised and lowered temperatures. …
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Regioselective Synthesis of Polysaccharide-based Polyelectrolytes
… one of the most abundant and diverse families of natural polymers, and have an incredibly wide range of natural functions including structural reinforcement, energy storage, aqueous rheology modification, and communication and identity. Application of native polysaccharides like cellulose as …
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Designing High Performing Durable Bio-Based Coatings for Packaging Applications
… packaging applications using renewable biopolymers. These include cellulose, extracted from plants, and chitin, sourced from mushrooms and food waste like crustacean exoskeletons. These natural polymers can form strong, high-performance films but are limited by moisture sensitivity and …
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Characterization of Cellulose and Chitin Thin Films and Their Interactions with Bio-based Polymers
As the two most abundant natural polymers on earth, cellulose and chitin have attracted increasing attention as a source of renewable energy and functional materials. Thin films of cellulose and chitin are useful for studying interactions of these materials with other natural and synthetic …
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Synthesis and Structure-Property Relationships of Polysaccharide-Based Block Copolymers and Hydrogels
… are known as among the most abundant natural polymers on the Earth. As this class of material is usually renewable, biodegradable, biocompatible in many contexts and environmentally friendly, it is of great interest to use these benign polymers to design and prepare materials, …
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Renewable Natural Polymer Thin Films and Their Interactions with Biomacromolecules
Natural polymers from renewable resources have attracted increasing interest as candidates for renewable energy and functional materials. In this work, the interactions between natural polymer thin films and biomacromolecules were studied via surface analysis techniques, such as a quartz crystal …
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