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 19 of 19 for “"cucurbit[n]uril"”.
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Cucurbit[n]uril-engineered Nano-constructs for Molecular Sensing
… affinity towards the substrate is thus limited. Cucurbit[n]uril (CB[n]) exhibits strong and selective encapsulation of various guest molecules into its barrel-shaped cavity. In addition, it can function as a precise rigid spacer between metallic nanoparticles (NPs). The larger homologue CB[8] can …
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Electrochemical CO2 reduction on Cucurbit[n]uril modified Gold
… thesis, gold surfaces were functionalised with cucurbit[n]uril (CB[n]) macrocycles to form a hybrid organic-inorganic model system capable of influencing the local chemical environment of gold as a heterogeneous CO2 reduction electrocatalyst. This supramolecular system was carefully investigated …
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Cucurbit[n]uril-based colloidal self-assembly in hybrid polymeric systems
… of novel colloidal assemblies based on cucurbit[n]urils host-guest interactions, including hybrid ‘raspberry-like’ colloids, catalytic polymeric nanocomposites, advanced structured colloids, and supramolecular polymer colloidal hydrogel.
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Hierarchical Supramolecular Assemblies Based on Host-Guest Chemistry between Cucurbit[n]uril and Azobenzene Derivatives
Cucurbit[8]uril (CB[8]) has attracted great interest in the cucurbit[n]uril (CB[\textit{n}]) family on account of its capability to simultaneously accommodate two guests inside its cavity, to form strong yet dynamic ternary complexes.Owing to the photo-induced \textit{trans} to \textit{cis} …
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Ultratrace Neurotransmitters SERS Sensing
… of NTs to SERS substrates will be covered: by Cucurbit[n]uril (CB[n]) and by Fe(III) ions. The fundamental resonance modes of NTs molecules and ultratrace NTs SERS sensing are discussed in detail. Further exploration of SERS substrates in the format of oil/water interfacial film will also be …
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Supramolecular Functional Materials Based on Cucurbit[8]uril-Enhanced π–π Interactions
… and nanotechnology. In particular, the cucurbit[n]uril (CB[n]) family of macrocyclic hosts has attracted considerable attention over the last decade. Advantages of CB[n]-based systems include compatibility with a wide guest scope of molecules, a high binding affinity that spans a wide …
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Molecular Sensing using Surface-Sensitised Plasmonic Nanogaps
… close-packed gold nanoparticles (MLagg). Rigid cucurbit[n]uril spacers precisely define the sub-nm interparticle gaps, enabling reproducible SERS enhancements. Pristine nanogaps are achieved through oxygen plasma cleaning, which removes all ligands, analytes and contaminants and oxidises the top …
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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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Exploiting the ‘Complex’ Relationship between Cucurbit[7]uril, Peptides and Gold Nanoparticles for the Development of Biomaterials Suitable for Delivery
This thesis explores aspects of cucurbit[n]uril (CB[n]) chemistry that can be utilised and exploited in the formation of materials suitable for therapeutic peptide delivery and diagnostics. Biomedical applications of CB[n] span simple therapeutic complexation leading to increased solubility and …
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Self-assembly of synthetic and biological components in water using cucurbit[8]uril
… in the presence of our molecular host of choice, cucurbit[8]uril (CB[8]). Our studies on the self-assembly of synthetic and biological components in water bridge overlapping concepts and techniques drawn from the fields of synthetic organic chemistry, supramolecular self-assembly, and applied NMR …
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Functional Molecular Spacers for Plasmonic Nanojunctions: Design, Synthesis and Self-Assembly
… plasmonic nanocavities, using a macrocyclic cucurbit[n]uril (CB[n]) host. Successful self-assembly of AuNPs using various ArV⊂CB[n] inclusion complexes was confirmed using a variety of spectroscopic and theoretical techniques. This demonstrates the possibility of multi-component molecular …
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Design, Synthesis and Characterisation of π-Extended Viologen-Based Molecular and Supramolecular Complexes with Cucurbit[n]urils
… interactions of V$^{2+}$ derivatives with cucurbit[n]uril (CB[n], for n=7 or 8) macrocycles, the dimerisation of V$^{+.}$ radical cations inside the CB[8] molecular cavity as well as redox controlled stoichiometry of V$^{2+}$ based inclusion complexes make these systems highly attractive …
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Supramolecular Chemistry at the Polymer-Oil Interface
… water remains in the polymer layer. A viologen-cucurbit[8]uril binding site was chosen as the supramolecular surface interaction. The binding unit was incorporated into the polyamide-imide. The synthesis of the binding site polymer was achieved in two stages; the reproduction of the commercial …
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Supramolecular effects in pyridinium compounds and their application towards practical redox flow battery systems
… existing tonne-scale production capacity of both cucurbit[*n*]uril (CB[*n*]) macrocycles and methyl viologen are leveraged to advance an additive concept for AORFBs that enables stable and tuneable multi electron accessibility – without the need for synthetic modification. By encapsulating methyl …
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Aqueous Self-Assembly with Cucurbit[n]urils: From Solution to Emulsion
… a focus on host-guest chemistry. The macrocyclic cucurbit[n]urils (CB[n]s) in particular are highlighted with a discussion on their recent applications since their discovery. Emulsions and their controlled generation with microfluidic techniques are then reviewed, as they have been used as …
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Uncovering and Exploiting Cucurbit[8]uril Host-Guest Dynamics in Bulk Mechanical Behaviour
… with myriad application. Hydrogels based on cucurbit[8]uril (CB[8]) supramolecular interactions are ideal candidates to study this relationship due to the variability in guests and binding modes it accommodates. In the first chapter earlier studies on pressure-induced changes in CB[8] …