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 13 of 13 for “"single nanoparticles"”.
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Optical Resonators and Fiber Tapers as Transducers for Detection of Nanoparticles and Bio-Molecules
… years, detection of biological interactions on single molecule level has aspired many researchers to investigate several optical, chemical, electrical and mechanical sensing tools. Among these tools, toroidal optical resonators lead the way in detection of the smallest particle/molecule with the …
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Effects of Geometry on Plasmonic Properties of Nanostructures
… to numerous optical devices. Plasmonic metal nanoparticles, which are potential candidates for many applications due to their unique optical properties, have sensitive polarization responses determined by their nanoscale geometry and local environment. Polarization resolved studies of …
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Engineering Noble-Metal Nanoparticles for Sensing and Imaging with Surface-Enhanced Raman Scattering
… Raman scattering: SERS) from Ag and Au nanoparticles with an aim to better understand the SERS mechanism and to implement this technique for single-molecule detection and imaging. In addition, SERS was used as a sensitive probe to study molecules confined to a nanoparticle's surface. The …
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Interaction of Light and Conjugated Polymers in Plasmonic Nanogaps
… by a backbone of alternating double and single bonds, exhibit unique optical and electronic properties due to their delocalized electrons. These properties make them suitable for various applications, including organic transistors, electrochromic displays, and flexible electronics. …
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Electrochemically-induced phase transition in olivine type cathode materials
… system, strain accommodation mechanism within single nanoparticles (Chapter 2 to 3) and mesoscale kinetics of nanoparticle aggregates (Chapter 4 to 5) during electrochemically-induced phase transition have been systematically investigated. In the first part, phospho-olivines with varying …
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Photochemical Tuning of Surface Plasmon Resonances in Metal Nanoparticles
Illuminated metal nanoparticles (MNPs) feature collective electron oscillations (so-called localized surface plasmons or LSPs) which facilitate concentrating light-matter interactions to length scales below the diffraction limit. Part I of this book describes two applications of this confinement …
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Optical polarization control in free space and through random media using wavefront shaping
… second-order nonlinear susceptibility tensor of single nanoparticles. The second technique relates to controlling the state of light transmitted through highly scattering media. In this regard, we introduce the concept of the vector transmission matrix (VTM) by generalizing the conventional …
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Quantitative Anisotropy Imaging based on Spectral Interferometry
… phase or optical path information of interest in single shot measurements with exquisite sensitivity and large dynamic range. As fast spectrometer became more available in 21st century, spectral interferometric techniques start to dominate over time-domain interferometry, thanks to its speed and …
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Computational approaches to understanding structure-property relationships in single plasmonic nanoparticles
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2027-05-01
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Modification of Polymer Membranes: A Study of Crosslinking and In-Situ Growth of Palladium-Containing Nanoparticles in Polymer Matrices.
… explore the viability of growing Pd-containing nanoparticles from Na2PdCl4 in two different polymers —hyper-cross-linked polystyrene (HPS) and an aromatic polyimide (PIm). In HPS, single Pd-containing nanoparticles possessing a relatively narrow size distribution (ca. 1-4 nm) are observed to …
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Dual-Responsive Polymer and Hybrid Systems: Applications for Gene Delivery and Hydrogels
… with the magnetic properties of iron oxide nanoparticles to enable an activity of the gene vector in an applied external magnetic field. Another point was to apply the dual-responsive behavior of PDMAEMA (temperature and pH) for physically cross-linked hydrogels. Initial studies on magnetic …
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Single-Particle Orbit Tracking - Setup, Characterisation and Application
… which records the 2-dimensional trajectories of single fluorescently labeled polystyrene beads, either 20nm or 50nm in diameter, with a high spatial and temporal resolution is introduced. Combining single molecule fluorescence techniques with a new method called single-particle orbit tracking the …
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High-throughput sensing of bulk fluids and freely flowing particles with opto-mechano-fluidics
… have revolutionized label-free sensing of nanoparticles, down to the resolution of individual viruses and single molecules. However, these laboratory demonstrations commonly encounter practical constraints that remain unresolved. Specifically, optical resonator detection techniques rely on …