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 20 of 24 for “"Molecular Devices"”.
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Programming Molecular Devices using Nucleic Acid Hairpins
… use of DNA hairpins as fuel for synthetic molecular devices, including locomotion, was proposed and experimental demonstrated in 2003. They</p><p>were interesting because they bring to the table an on-demand energy/information supply mechanism. </p><p>The energy/information is hidden (from …
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Theoretical Modeling Of Electron Transport In Molecular Devices
… stage. Requirements for smaller and reliable devices are becoming more and more demanding. It is predicted that Moore's law in making a faster CPU is going to break down in the foreseeable future. People start to look into new materials in the hope that soon in the future, one can replace …
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Molecular Devices: Brakes, Rotors, Sensors, and Balances and the Non-Covalent Interactions That Power Them
… at the Bottom' predicted the advent of nano- and molecular-scale machines. Only recently has Feynman's vision begun to be realized with the syntheses of molecular devices that convert chemical or kinetic energy into controlled mechanical molecular motions. In this thesis, several types of …
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Synthesis and photophysical investigation of supramolecular complexes developed for photoinitiated electron collection
In this research, photochemical molecular devices were designed to perform photoinitiated electron collection. These devices were synthesized, characterized and their spectroscopic, photochemical and electrochemical properties investigated. The general formula for these systems is …
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Cryptophane Derivatives as Gas Sensors and Hyperpolarized Xenon-129 Biosensors
… for cancer detection, and the construction of molecular devices. A new water-soluble organic host molecule, tris-(triazole ethylamine) cryptophane, was synthesized for noble gas detection. This host was found to bind xenon with the highest affinity to date (KA = 42,000 ± 2,000 M-1 at 293 K). …
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Controlling Molecular-Scale Motion: Exact Predictions for Driven Stochastic Systems
… and thermal fluctuations, controllable molecular devices or molecular machines are currently being synthesized around the world. Many of these molecular complexes are non-autonomous in that they are manipulated by external stimuli. As these devices become more sophisticated, the need for …
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Theory and Simulations of Charge Transfer in Engineered Chemical Systems
… biological processes and developing future devices. Here, we present our theoretical and experimental efforts to design, synthesize and characterize the electronic properties of charge-transfer complexes and approaches to control their charge flow. </p><p>Computational methods, including …
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Molecular Optoelectronics in Plasmonic Nanocavities
Creating functional optoelectronic devices using individual or ensembles of molecules is currently an active research area, driven by the ever-increasing demand for miniaturisation of electronic devices and the exploration of light-matter interactions at the molecular level. This thesis …
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Modeling and Simulating Biomolecular Machineries at Atomic Scale and Beyond
Biomolecular machineries are molecular complexes endowed with sophisticated machine-like functions inside living organisms. Understanding how these machineries achieve their functions at the microscopic structural level could be essential for understanding fundamental principles of life as well as …
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The plasmonics of a nanosphere on a mirror substrate
… with the development of new optoelectronic and molecular devices.
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Scanning Probe Microscopy Study of Molecular Self Assembly Behavior on Graphene Two-dimensional Material
… materials required for potential applications. Molecular self-assembly behavior on graphene is a key method to investigate the mechanism of interaction between molecules and graphene and the promising applications related to molecular devices. In this thesis, we report the molecular …
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Gene expression control and antimicrobial peptide production by haute couture bacteria
… in response to anhydrotetracycline. The molecular geometries of the prokaryotic-TetOn and prokaryotic-TetOff systems were first optimized using protein structure refinement and homology modeling. Next, the molecular devices were built and tested experimentally.Finally, both systems were …
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Electronic structure and quantum conductance of molecular and nano electronics
… well as on predicting and designing new type of molecular and nanoelectronic devices. In the first study, we suggest and investigate a quantum interference effect in the porphyrin family molecules. We show that the transmission through a porphyrin molecule at or near the Fermi level varies by …
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Theory of molecular-scale transport in graphene nanojunctions
A molecular junction consists of a single molecule or self-assembled monolayer (SAM) placed between two electrodes. It has varieties of functionalities due to quantum interference in nanoscale. Although there exist issues, advantages could still appeal to scientists who wish to investigate …
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Effects of non-planar distortions in porphyrin compounds on their properties and functionality
… solar energy transduction, electron transport, molecular transport and storage, and catalysis. Due to their unique photophysical and chemical properties, they are excellent candidates for application as photosensitizers, catalysts, photocatalysts, molecular electronics and opto-electronics. …
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Synthetic Ion Channels From Lipophilic Guanosine Derivatives
… biosensors, antimicrobial agents and other molecular devices. In this thesis, lipophilic guanosine derivatives that combine both "molecular recognition" and "membrane soluble" features are utilized for the development of the self-assembled synthetic ion channels. The potential of lipophilic …
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Polymers as directing agents for motions of chemical and biological species
… glycol) acrylate polymer brush based molecular conduits have been designed with the goal of regulating and controlling the diffusive transport of molecular, e.g. organic dyes, and ionic species, e.g. AuCl4-, and Cu2+ ions, along predefined 2-D pathways. The transport of these chemical …
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Measurement and Visualization of Electron Transfer at the Single Molecule Level
Molecular electronics based on bottom-up electronic circuit design is a potential solution to meet the continuous need to miniaturize electronic devices. The development of highly conductive molecular wires, especially for long distance charge transfer, is a major milestone in the molecular …
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Accelerating Probabilistic Computing with a Stochastic Processing Unit
… by utilizing the quantum randomness of optical-molecular devices---Resonance Energy Transfer (RET) networks. We provide a macro-scale prototype, the first such system to our knowledge, to experimentally demonstrate the capability of RET devices to parameterize a distribution and run a real …
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Yttrium, Gadolinium, and Lutetium Based Endohedral Metallofullerenes: From Synthesis to Application
… with vast promise in applications of molecular devices and nanomedicines. This dissertation addresses the EMF research span from synthesis to application, with an emphasis of work on trimetallic nitride template (TNT) EMF and carbide clusterfullerenes (CCFs). As a general introduction, …
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