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.
Results
Showing 1 to 20 of 31 for “"Single-Walled Carbon Nanotubes (SWCNTs)"”.
-
FLUORESCENT ULTRASHORT NANOTUBES FROM DEFECT-INDUCED CHEMICAL CUTTING
Ultrashort single-walled carbon nanotubes (SWCNTs) that fluoresce brightly in the shortwave infrared shows great potentials in bioimaging, sensing and enabling room-temperature, solid-state single-photon sources. However, this novel family of materials remains largely unexplored due to the …
-
Single Ion Detection in Nanotube Nanofluidics
… organic color center (OCC)-functionalized (6,5) single-walled carbon nanotubes (SWCNTs) to detect proton diffusion in nanofluidic systems at the single-ion level. I first developed a method to encapsulate SWCNTs between two layers of Parylene-C, a polymer with exceptionally low permeability to …
-
An Optical Aptamer-Based Carbon Nanosensor for Cortisol Detection
… the development of an optical aptamer-based carbon nanosensor for the detection of cortisol. The sensor utilizes single-walled carbon nanotubes (SWCNTs) functionalized with a specific DNA aptamer to achieve high specificity and sensitivity. This work touches on the importance of solvent …
-
Embedded Nanosensors for defect identification using flexible, optically transparent, deformation responsive wrinkled Single Walled Carbon Nanotube meshes
… loss of properties and damage to lives. Embedded single walled carbon nanotubes (SWCNTs) with exceptional mechanical, optical, and electrical properties can be utilized in overcoming these barriers. This type of NDT technique can monitor the potential for failure in concrete structures by allowing …
-
Fluorescence Labeling of Surface Species as an Efficient Tool for Detection, Identification and Quantification of Oxygen Containing Functionalities on Carbon Materials
… functionalities on the surfaces of single walled and multi-walled carbon nanotubes. Nearly all applications of nanotubes (CNTs), from nanoelectronics to composites, require knowledge of the type and concentration of functionalities on the surface of the material. None of the methods …
-
Studying Interactions of Gas Molecules with Nanomaterials Loaded in a Microwave Resonant Cavity
… was used to study the adsorption response of single walled carbon nanotubes (SWCNTs) and other nanomaterials for different types of gas molecules. The range of the frequency signal as a probe was chosen as geometry dependent range between 9.1 -9.8 GHz. A highly specific range can be studied …
-
Calorimetric studies of small-molecule adsorption to carbon nanotubes
… the heat of absorption of small molecules to single-walled carbon nanotubes (SWCNTs). In agreement with other studies, it was shown that polyaromatic hydrocarbons (PAHs) that can achieve a greater degree of n-orbital overlap with the curved surface of carbon nanotubes (CNTs) adsorb more …
-
The design and synthesis of polycyclic conjugated hydrocarbons via the incorporation of bifunctional Diels-Alder building blocks
… and applications of polycyclic conjugated hydrocarbons (PCHs). In particular, we explore synthetic strategies to access polycyclic aromatic hydrocarbons and nonbenzenoid oligoacenes, and also discuss synthetic efforts to stabilize, solubilize and tune the properties of these classes of …
-
Low-dimensional carbon allotropes: an electron microscopy investigation
… characterization of graphene membranes and single-walled carbon nanotubes (SWCNTs). The experimental investigation was performed using a wide range of transmission electron microscopy (TEM) techniques, from conventional imaging and diffraction, to advanced interferometric methods, like …
-
Charging and defects in single-walled carbon nanotubes
Single-Walled Carbon Nanotubes (SWCNTs) have been one of the most intensively studied materials. Because of their single-atomic-layer structure, SWCNTs are extremely sensitive to environmental interactions, in which charge transfer and defect formation are the most notable effects. Among a number …
-
Carbon nanotube films for flexible electronics
… inorganic semiconductors. Recently, films of carbon nanotubes have been proposed as electronic materials with superior electrical performance due to exceptional electrical and mechanical properties of single-walled carbon nanotubes (SWCNTs). In this thesis, some aspects of recent research …
-
Polymer and covalent functionalization of single walled carbon nanotubes for electronic sensor applications
… by crafting composites of synthetic polymers and single walled carbon nanotubes. Sensitivity to and selectivity for target analytes were augmented by the introduction of molecular recognition elements into polymer side chains or by the addition of additives into a polymer/single walled nanotube …
-
Ultrafast Dynamics of Individual Air-Suspended Single-Walled Carbon Nanotube
… of the electronic and optical properties of single-walled carbon nanotubes (SWCNTs) will no doubt benefit future technological applications. Since the discovery of band gap photoluminescence from isolated semiconducting SWCNTs, significant progresses in studying the optical properties of …
-
Własności antybiotyku (ciprofloksacyny) uwięzionego w nanotubach węglowych. Właściwości antybakteryjne układu
… w jednościennych nanorurkach węglowych (SWCNTs) oraz w matrycach porowatych (SBA15 i MCM41). Zbadano wpływ rozmiaru nanorurek i ich struktury na oddziaływania z wodnym roztworem leku. Charakterystyka układu ciprofloksacyna – nanorurki węglowe pozwoliły na zbadanie ich wpływu na bakterie …
-
Experimental Analysis of Heat Generation in Carbon
… non-covalent functionalization technique of single-walled carbon nanotubes (SWCNTs) and to examine the feasibility of using carbon nanotube films as thin film heaters. We developed a unique methodology to synthesize a well dispersed, environmentally friendly solution of CNTs that could be …
-
Elastic constants from molecular mechanics simulations of frequencies of free-free single-walled carbon nanotubes and clamped single-layer graphene sheets
Elastic constants of single-walled carbon nanotubes (SWCNTs) and single-layer graphene sheets (SLGSs) are determined by studying their free vibration characteristics using molecular mechanics (MM) simulations with the MM3 potential and finding their equivalent continuum structures (ECSs). The …
-
Polymer and carbon nanotube materials for chemical sensors and organic electronics
… 2, we develop a chemiresistive material based on single-walled carbon nanotubes (SWCNTs) and hexafluoroisopropanol (HFIP) functionalized polythiophene, with a largely simplified fabrication process. The sensor shows high sensitivity and selectivity for a nerve reagent stimulant. A series of …
-
Synthesis and chemical modification of carbon nanostructures for materials applications
… response, and materials properties of various carbon nanostructures, including single-walled carbon nanotubes (SWCNTs), multi-walled carbon nanotubes (MWCNTs), graphite, and graphene nanoribbons (GNRs). Efficient production and modification of these unique structures, each with their own …
-
Harnessing inorganic coordination chemistry for novel sensing applications
… incorporation of a conductive material (i.e., carbon nanotubes) or reliance on intrinsic conductivity. We seek to elucidate fundamental principles that govern these chemical detectors and use these insights to aid our design of effective chemical detection systems. In Chapter 1, we give an …
-
Manipulating Conjugation in electronic polymers and graphitic materials: chemosensors, precursor routes, and self-assembly
… of deoxyribonucleic acid (DNA) to assemble single-walled carbon nanotubes (SWCNTs) in a controllable manner. Networks of SWCNTs with three-way junctions could be constructed in solution or sequentially on a surface. We envision that more complex nanoscale architectures and circuits can be …
Page 1 of 2