Global ETD Search
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 9 of 9 for “"cucurbituril"”.
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Synthesis of Higher Homologues of Cucurbituril Derivatives and Evaluation of their Supramolecular Properties
The cucurbit[n]uril (Q[n]) family provides real potential for a wide range of applications, including drug delivery, complex self-sorting systems, chemical sensors, environmental protection and supramolecular catalysis. However, compared with other host molecules, such as crown ethers, …
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Characterization of Cucurbituril Complex Ions in the Gas Phase Using Electrospray Ionization Fourier Transform Ion Cyclotron Resonance Mass Spectrometry
… structures available in a range of sizes, cucurbiturils have been ideal prototypical host molecules in host-guest chemistry since they were characterized in 1980s. Recent research in my group has shown cucurbiturils can form various complexes with positive ions in the gas phase, such as …
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Structural supramolecular constructs of spheres and tubes
… or tubes. The first project used donut shaped cucurbituril and through functionalization realized a new analogue, a greener synthesis for biologically important molecules called hydantoins and a new crystal motif involving potassium nitrate and cucurbit[6]uril. The second project examined the …
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Supramolecular Chemistry at the Polymer-Oil Interface
… stopper groups to prevent unthreading of the cucurbituril as well as enhancing the solubility of the system. The two components were linked via an amidisation reaction between an acid chloride and an amine. Due to the low solubility of the products confirmation of synthesis was only possible …
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The stereochemistry of selected supramolecular complexes of cucurbiturils and the effect of homogeneous equilibria and electron transfer of the guest
… This dissertation examines the interactions of cucurbiturils as barrel-shaped hosts, exhibiting a hydrophobic cavity, with substituted benzoylpyrydinium, phenypyrylium, and diazaanthraquinonediium cations as guests. In water, N-methyl-4-(p-substituted benzoyl)pyridinium cations exist in …
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A next generation theranostic nano-platform for sustained and enhanced inhibition of cancer stem cells
… approach integrated with a surface decorated cucurbituril (CB[6]) host-guest chemistry using luminescent carbon nanoparticles (Nano-Carbobitaceae) for sustained and enhanced delivery of niclosamide traceable with vibrational spectroscopic methods. Carbon nanoparticles (Hydrodynamic dynamic …
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Luminescent Iridium(III) Cyclometalated Complexes: Host-Guest Chemistry and Application as Sensors
In this thesis, known and new iridium(III) cyclometalated complexes have been synthesized and investigated in a host-guest chemical context and in studies towards an application in the detection of peroxide-based explosives in fingerprints. The complexes [Ir(ppy-R)2(bpy)]n+ studied here contain two …
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Electrochemical CO2 reduction on Cucurbit[n]uril modified Gold
The electrochemical conversion of carbon dioxide with renewable electricity offers an attractive route towards sustainable fuel and chemical feedstock production. However, the reaction suffers from slow reaction kinetics, low solubility of CO2 and hydrogen formation as a competing side reaction. In …
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Functional Supramolecular Hydrogels Mediated by Host-Guest Chemistry
Hydrogels mediated by host-guest interactions represent a compelling class of materials with a myriad of promising applications including medical devices, wearable electronics and even for use as a strong adhesive. Several high-impact applications involving cyclodextrin (CD) mediated hydrogels have …