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Showing 1 to 20 of 21 for “"calixarene"”.
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Research towards novel immunotherapeutic vectors: calixarene scaffolds
… delivery system and immunogenic vector, based on calixarenes, that is able to not only deliver immunogenic peptide but also act as a potential cancer vaccine. The introduction presents calixarenes derivatives in the context of supramolecular chemistry. Their properties on the nanoscale allow them …
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Calixarene and coordination complex hosts for anions.
My Ph.D research is mainly based on ‘calixarene and coordination complex hosts for anion’. The research is to make synthetic chloride ion channels for possible treatment of cystic fibrosis. Our approach is based on derivatives of larger calix[n]arenes. Calixarenes are chalice-shaped molecules that …
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Advanced quartz crystal microbalance techniques applied to calixarene sensing membranes.
Several Quartz Crystal Microbalance (QCM) measurement techniques in conjunction with a series of calix[4]resorcinarene sensing membranes have been successfully exploited for the detection of volatile organic solvents at vapour concentrations below their lower explosive level.The impedance analysis …
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A Polypyrrole/Sulfonated Calixarene Modified Electrode for the Electochemical Detection of Dopamine
Ìn this thesis, the development of a p-sulfonatocalix[4]arene (C4S) doped polypyrrole (PPy-C4S)modified electrode for the electrochemical detection ofdopamine (DA) is reported. the physical and electrochemical characteristics of the PPy-C4S film are discussed, the oxidation of DA and the PPy-C4S …
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Reductive coupling, and, transition metal calixarene complexes : metal-metal quadruple bonds and pockets
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemistry, 1995.
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Calixarene Linked Bis-Porphyrin Hosts for Fullerenes and the Assembly of Supramolecular Ferrocene-Porphyrin-Fullerene Triads
… This thesis describes the synthesis of several calixarene linked bis-porphyrin hosts for the binding of fullerenes. Also described in this thesis, is the functionalization of the calixarene scaffold with ferrocene for the preparation of supramolecular triads. The presence of a secondary donor is …
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Supramolecular approaches to cryorelaxors for biological NMR studies
… Two approaches have been explored, namely calixarene host-guest complexes incorporating rotationally labile methyl groups, and endohedral fullerene complexes.<br/>The first chapter provides an overview of the background of the project and of potential approaches to the problem of low …
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Polymers containing calix[4]arenes and triptycenes : new syntheses, properties and applications
… are introduced. High molecular-weight main-chain calixarene homopolymers via linkages on lower rims are synthesized by the polymerization based on acetylenic coupling reaction. The conformation of calixarene monomers dictates the ability to produce the new polymers: the calix[4]arene monomers with …
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Synthesis of Novel Calix[4]arene Based Dendrimers and their Biological Applications
… describes the development and synthesis of multicalixarenes and their application in gene and drug delivery. Chapter 1 provides an introduction to gene therapy and calixarenes. The synthesis of two families of amino functionalised multicalixarenes are described. Evaluation of their toxicity and …
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Synthesis and chemosensing ability of novel pyrene-isoxazole-calix[4]arene constructs
… functioning as linker and ion-binding moiety and calixarene scaffold as ion-binding moiety - PIC.
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Conformationally Immobile Calix[6]arenes as Negative Resists in Electron Beam Lithography
… features. Literature reports that calixarenes have the potential to meet this challenge, due to their ultrahigh resolution and their process robustness. For this study, the “1,2,3-alternate” and “cone” conformers of Diallyloxy-Bis-/77-Xylenyloxycalix[6]arene were synthesized via a …
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Progettazione e sintesi di piccoli peptidi coniugati con macrocicli per la diagnosi e la terapia nelle malattie neurodegenerative.
… è stato coniugato con differenti macrocicli (calixarene o porfirina) con l'obiettivo di creare, con un’azione sinergica e/o complementare, nuovi sistemi da impegnare nella diagnosi precoce e nella terapia. In questi derivati, il KLVFF è stato legato ai macrocicli attraverso il frammento GPG …
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Synthesis of Tin Containing Calix[4]arenes and their Anion Binding Capabilities
… research has been done on the ability of calixarenes to complex cations and neutral species. The electron-rich molecular cavity and lower rim consisting of a cyclic array of oxygen donors makes the structure of the calixarene conducive to this type of complexation. Conversely, the …
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The synthesis and sensing capabilities of new amide, urea and nitrile calix4arenes
… and ongoing evolution of state-of- the-art calixarene chemistry within the field of supramolecular chemistry. Throughout the thesis there is particular emphasis on relating host structural changes to changing analytical signal upon complexation with a particular guest. This is the link …
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Nano chemistry : large molecular capsules and coordination networks based on self-assembly
… recognition and the history and synthesis of calixarenes. The supramolecular chemistry of the p-sulfonatocalx[n]tilarenes and a selection of interesting and recently reported nano-metre scale multi-component supramolecular architectures are also reviewed. Chapter 2 describes the pH dependent …
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Structure Activity Study of a Family of Functional Pyrene-Isoxazole-Calix[4]arene Fluorescent Chemosensors for Metal Ion Detection
… an ethylene linker between the lower rim of the calixarene and the isoxazole heterocycle, PPICintroduced an alkyl chain between the isoxazole rings and the pyrene units and MPICincorporatedmethoxy groups in place of the hydroxyl groups of PIC.Each host wassuccessfully synthesised using …
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New Pre-Catalysts for Olefin Polymerisation and Ring-Opening Polymerisation of Lactides/Lactones
… featuring phenoxyimine, phenolate and calixarene ligand systems have been synthesized, characterised and screened for their ability to polymerize α-olefins or ring open polymerize (ROP) cyclic esters. The treatment of a number of related phenoxyimine ligands (L1H – L3H, L6H – L14H) and …
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Polymer and carbon nanotube materials for chemical sensors and organic electronics
… material based on SWCNTs wrapped with a calixarene-substituted polythiophene. The material displays a selective and sensitive response to xylene isomers. The selectivity is verified by nuclear magnetic resonance spectroscopy, quartz crystal microbalance measurements, and fluorescence …
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Nanostrutture porfiriniche attraverso il self-assembly: approccio non-covalente e covalente
… la chimica host-guest. In funzione del tipo di calixarene è stato possibile ottenere svariati complessi porfirine-calixareni controllandone dimensionalità (1D, 2D o 3D) e le proprietà elettroniche (es. la chiralità). Inoltre, nella tesi è stato anche analizzato l’approccio covalente …
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Syntheseses [sic] and evaluation of porphyrin derivatives for applications in medicine and in material science
… stability. Chapter 5 introduces oxacalixarene as a novel spacer to efficiently build cofacial bisporphyrins and higher oligomers. This is a general method to build a variety of cofacial architectures. The spectroscopic and structural properties of these new compounds are presented. …
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