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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 20 of 74 for “"Thermoresponsive"”.
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Thermoresponsive polymer desiccants for water harvesting
… their rational design. The focus is primarily on thermoresponsive polymers, a particularly useful class of materials enabling the low energy release of sorbed water. Despite this property these materials have been largely overlooked for water harvesting applications. In Chapter 1, the current …
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Thermoresponsive polymer desiccants for water harvesting
… their rational design. The focus is primarily on thermoresponsive polymers, a particularly useful class of materials enabling the low energy release of sorbed water. Despite this property these materials have been largely overlooked for water harvesting applications. In Chapter 1, the current …
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Enhancing microalgal biomass harvesting efficiency using thermoresponsive polymers
… principles and potential applications of thermoresponsive polymers (TRPs) for the harvesting of microalgae. Variants of PNIPAM were synthesized, and the impacts of charge, molecular weight, amine content, and polymer concentration on the phase transition temperature and degree of phase …
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Elucidating Dual Methylcellulose-and-Oil-Nanoemulsion Thermoresponsive Gelation
The rheological properties of a colloidal gel depend upon the microstructure of the gel and the identity of the load-bearing elements. Here we demonstrate a hybrid hydrogel-colloidal gel system composed of a methylcellulose-stabilized oil nanoemulsion. This system has tunable rheology with two …
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A Thermal Switch from Thermoresponsive Polymer Aqueous Solutions
… switch. Noticing the transition properties of thermoresponsive polymer for drug delivery, its potential in thermal switch can be expected. I used Poly(N-isopropylacrylamide) (PNIPAM) as an example to show the abrupt thermal conductivity change of thermoresponsive polymer solutions below and …
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Towards greener stationary phases : thermoresponsive and carbonaceous chromatographic supports
… silica-based material known as a monolith, the thermoresponsive characteristic was transferred to the column surfaces. The hybrid material was demonstrated to act as a simple temperature ‘switch’ in the separation of a mixture of five steroids under water. Different analytes were observed to be …
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Thermoresponsive Glycopolymers via Controlled Radical Polymerization (RAFT) for Biomolecular Recognition
Stimuli responsive polymers (SRP) have attracted a lot of attention, due to their potential and promising applications in many fields, as protein-ligand recognition, on-off switches for modulated drug delivery or artificial organs. Poly(N-isopropylacrylamide) (PNIPAM) is one of the most widely …
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Synthesis and self-assembly of multiple thermoresponsive amphiphilic block copolymers
In the present thesis, the self-assembly of multi thermoresponsive block copolymers in dilute aqueous solution was investigated by a combination of turbidimetry, dynamic light scattering, TEM measurements, NMR as well as fluorescence spectroscopy. The successive conversion of such block copolymers …
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Rheological Studies of Injectable Thermoresponsive Biodegradable Hydrogels and Porcine Ocular Tissues
… (porcine ocular tissues). </p> <p>A series of thermoresponsive and biodegradable in situ hydrogel based on N-isopropyacrylamide (NIPAAm) monomer and hydrolytically degradable oligolactate Dextran-lactate-HEMA or Hyaluronic acid (HA)-AEMA macromer were investigated as encapsulation matrices …
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Thermoresponsive colloidal stability of core-shell nanoparticles with self-assembled ionic surfactant shells
The topic of this thesis is the thermoresponsive dispersion stability of nanoparticles coated with self-assembled ionic surfactant shells. The objective is to provide experimental evidence for a loss of colloidal stability at high temperatures and to explore the characteristics of and the reason …
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Advancing the field of polypeptoids through the synthesis of novel architectures and thermoresponsive polymers
Peptidomimetic polymers are an emerging class of polymers that are structurally related to polypeptides. Due to their structural similarities, these polymers can be used to study some of the physical aspects of polypeptides (for example, protein folding). They are also increasingly being used in …
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Development of Cellulose-Based, Semi-Interpenetrating Network Hydrogels as Tissue-Adhesive, Thermoresponsive, Injectable Implants
… Network Hydrogels as Tissue-Adhesive, Thermoresponsive, Injectable Implants</strong></p> <p>Hydrogels are three-dimensional polymer networks with high water content and tunable mechanical properties, which have been widely investigated as replacements for soft tissues, such as the …
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Analyzing the interactions of thermoresponsive coacervate-forming biodegradable polyester encapsulation on model protein structure and activity
… function and integrity of protein therapeutics. Thermoresponsive coacervate-forming biodegradable polyesters (TR-PEs) are a thermoresponsive molecular packaging system used in protein therapeutic research. The term coacervate refers to a phase-separated solution in which a dense polymer phase …
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Assessment of the biocompatibility, stability, and suitability of novel thermoresponsive films for the rapid generation of cellular constructs
Stimuli responsive polymers (SRP) are of great interest in the bioengineering community due to their use in applications such as drug delivery and tissue engineering. One example of an SRP is poly(N-isopropyl acrylamide) or pNIPAM. This SRP has the capability of changing its conformation with a …
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Responsive polymers for optical sensing applications
LCST-type synthetic thermoresponsive polymers can reversibly respond to certain stimuli in aqueous media with a massive change of their physical state. When fluorophores, that are sensitive to such changes, are incorporated into the polymeric structure, the response can be translated into a …
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Entwicklung neuer stimuli-sensitiver Hydrogelfilme als Plattform für die Biosensorik
… mit der Synthese und der Charakterisierung von thermoresponsiven Polymeren und ihrer Immobilisierung auf festen Oberflächen als nanoskalige dünne Schichten. Dabei wurden thermoresponsive Polymere vom Typ der unteren kritischen Entmischungstemperatur (engl.: lower critical solution temperature, …
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Development of functional hydrogels for sensor applications
In this work, a sensor system based on thermoresponsive materials is developed by utilizing a modular approach. By synthesizing three different key monomers containing either a carboxyl, alkene or alkyne end group connected with a spacer to the methacrylic polymerizable unit, a flexible …
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