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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 11 of 11 for “"Physical Crosslinking"”.
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Physical crosslinking of gelatin : a supramolecular approach to biomaterials
This work describes the realization of physically crosslinked networks based on gelatin by the introduction of functional groups enabling specific supramolecular interactions. Molecular models were developed in order to predict the material properties and permit to establish a knowledge-based …
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INJECTABLE HYBRID HYDROGELS FOR LOCAL CHEMOTHERAPY OR TUMOR-SPECIFIC RESECTION
… For this reason, using both chemical and physical crosslinking strategies to make a hybrid material between polymer and nanoparticles could be investigated as a potential material used for minimally invasive surgery and for cancer treatment. The controlled drug release and the targeted …
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Bridging Mesoscale Phenomena and Macroscopic Properties in Block Copolymers Containing Ionic Interactions and Hydrogen Bonding
… between mesoscale phenomenon and macroscopic physical properties. Non-covalent interactions offer extra intra- and inter-molecular interactions to achieve stimuli-responsive materials in various applications, such as artificial muscles, thermoplastic elastomers, and reversible biomacromolecule …
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Probing the Ability of Flexible Hydrogels to Protect Fragile Objects
… against impact. We study gels made by either physical crosslinking (e.g., gelatin) or chemical crosslinking (e.g., acrylamide) and also the same gels with various particulate additives. None of the bare gels are protective, and nanoparticles like iron oxide or silica do not help. However, the …
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Design of Biomaterials toward Endogenous Skeletal Tissue Repair
… biomaterial by incorporating dynamic physical crosslinking into hyaluronic acid. Consequently, the supramolecular biomaterial exhibits unique shear-thinning by reshuffling the crosslinking in response to mechanical force, resulting in improved injectability and lubrication. …
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Synthesis and characterization of linear and star-branched butadiene-isoprene block copolymers and their hydrogenated derivatives
… blocks form morphological domains that serve as physical crosslinking and reinforcement sites. The presence of semicrystalline segments in both the linear and starâ branched copolymers has important significance for processing. Above the endothermic melting temperature of the semicrystalline end. …
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Use of poly vinyl alcohol (PVA) cryogelation for tissue engineering: composites, scaffold formation and cell encapsulation
PVA cryogelation is a physical hydrogel formation method, which yields cryogels with comparable mechanical properties to vascular tissue. However PVA cryogels are not suitable for cell attachment and proliferation alone. This can be overcome by the development of composite cryogels. Moreover, …
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Examining Structure-Morphology-Property Relationships of Novel Styrenic-Based Macromolecules for Emerging Applications
… copolymers have a unique architecture providing physical crosslinking to behave as thermoplastic elastomers. We preferred ABA triblock copolymers as compared to random and diblock copolymers for improved mechanical performance. ABA triblock copolymers synthesized using nitroxide-mediated …
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Synthetic peptides derived from decorin as building blocks for biomaterials based on supramolecular interactions
In this work, the development of a new molecular building block, based on synthetic peptides derived from decorin, is presented. These peptides represent a promising basis for the design of polymer-based biomaterials that mimic the ECM on a molecular level and exploit specific biological …
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"Smart" Hydrogels based on Trishydrophilic Triblock Terpolymers
… ions and the charged DMAEMA units, causing a physical crosslinking of the CSC micelles. The gel can subsequently be disintegrated by an exposure to UV-light, based on a UV-catalyzed aquation of the trivalent hexacyanocobaltate(III) ions ions to divalent aquapentacyanocobaltate(III)-ions. In …
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Non-covalent Intermolecular Interactions in Polymer Design: Segmented Copolymers to Non-viral Gene Delivery Vectors
… interactions aimed at altering the physical properties of segmented copolymers and non-viral gene delivery vectors. Amide containing segmented copolymers relies heavily on hydrogen bonding intermolecular interactions for physical crosslinking to impart the necessary microphase …