Investigation of Inorganic Nanoparticle Spatial Interactions by Development of Novel Nanoparticle Composites

Investigation of Inorganic Nanoparticle Spatial Interactions by Development of Novel Nanoparticle Composites

Bibliographic Details
Main Author: Dehankar, Abhilasha Vinod
Language:English
Published: The Ohio State University / OhioLINK 2019
Subjects:
Chemical Engineering
Online Access:http://rave.ohiolink.edu/etdc/view?acc_num=osu1565887276935787
id ndltd-OhioLink-oai-etd.ohiolink.edu-osu1565887276935787
record_format oai_dc
collection NDLTD
language English
sources NDLTD
topic Chemical Engineering
spellingShingle Chemical Engineering
Dehankar, Abhilasha Vinod
Investigation of Inorganic Nanoparticle Spatial Interactions by Development of Novel Nanoparticle Composites
author Dehankar, Abhilasha Vinod
author_facet Dehankar, Abhilasha Vinod
author_sort Dehankar, Abhilasha Vinod
title Investigation of Inorganic Nanoparticle Spatial Interactions by Development of Novel Nanoparticle Composites
title_short Investigation of Inorganic Nanoparticle Spatial Interactions by Development of Novel Nanoparticle Composites
title_full Investigation of Inorganic Nanoparticle Spatial Interactions by Development of Novel Nanoparticle Composites
title_fullStr Investigation of Inorganic Nanoparticle Spatial Interactions by Development of Novel Nanoparticle Composites
title_full_unstemmed Investigation of Inorganic Nanoparticle Spatial Interactions by Development of Novel Nanoparticle Composites
title_sort investigation of inorganic nanoparticle spatial interactions by development of novel nanoparticle composites
publisher The Ohio State University / OhioLINK
publishDate 2019
url http://rave.ohiolink.edu/etdc/view?acc_num=osu1565887276935787
work_keys_str_mv AT dehankarabhilashavinod investigationofinorganicnanoparticlespatialinteractionsbydevelopmentofnovelnanoparticlecomposites
_version_ 1719456345555468288
spelling ndltd-OhioLink-oai-etd.ohiolink.edu-osu15658872769357872021-08-03T07:12:25Z Investigation of Inorganic Nanoparticle Spatial Interactions by Development of Novel Nanoparticle Composites Dehankar, Abhilasha Vinod Chemical Engineering Inorganic nanoparticles (NPs), by virtue of their size range, display a variety of unique properties, such as fluorescence, superparamagnetism, and surface plasmon resonance. Further, NPs interact with other materials and NPs that are in close proximity, with potential to enhance their properties. Thus, NPs present excellent candidates for next-generation, cutting-edge electronic, photonic, energy, and biological applications. To date, significant research has been conducted to facilitate the synthesis of inorganic NPs with desired properties at commercial scales. Regardless, NPs and their spatial interactions have not yet been implemented to their complete potential for practical applications. To harness their properties for useful applications, it is crucial to assemble and integrate NPs with higher order materials into functional nanoparticle composites. Further, it is necessary to understand the spatial interactions of NPs and proximal materials to engineer desired properties in functional composites. However, research, design, and development of functional NP composites that offer tunable NP interactions and concomitant emergent properties through bottom-up assembly has not yet been fully explored. Further research investigating a variety of bottom-up assembly and integration techniques for is crucially needed to develop novel nanoparticle composites and investigate their spatial interactions. These studies are the primary motivation for the current research.NP composites fabricated using bottom-up techniques are generated via self-assembly of NPs into a thermodynamically-stable structures. One predominant approach for driving the self-assembly of NPs is influencing their microenvironment. In this research, self-assembly techniques were used to generate thin-film and polymer-stabilized colloidal NP clusters. Such approaches organize hundreds to thousands of NPs into multi-NP composites, enabling examination of their collective behavior and facilitating higher-order tuning of composite properties. Alternatively, NPs can be self-assembled via modification with molecules, such as deoxyribonucleic acid (DNA), that enable organization via specific interactions. Briefly, modification of NP surfaces with single-stranded DNA (ssDNA) molecules drives assembly of NPs to targeted structures with complementary ssDNA because of the specificity of DNA base-pair hybridization. DNA-based assembly processes enable precise organization of NPs, from NP dimers to complex, patterned assemblies on any platform with a corresponding ssDNA complement. Consequently, DNA-driven NP arrangement provides a unique opportunity to study local, inter-NP interactions and permits nanoscale tunability of emergent composite properties. This research elucidates different fabrication methods to produce functional NP composites of varying length-scales and tunable NP interaction ranges to yield desirable emergent properties for targeted applications. Comprehensively, this investigation suggests that self-assembly via modification of NP surfaces with biomolecules such as DNA is preferable because of their orthogonality for producing NCs whose functionality necessitates precise assembly or fidelity whereas, facile assembly by modification of NP environment can be employed for applications where precise organization of NPs are not completely vital to the functionality of the resulting NC. Additionally, DNA-based assemblies are naturally favored for applications that require reciprocal dynamics such as, optical switches, exact control over NP quantity such as, NP dimers, and complex 3D arrangements of NPs such as, chiral assemblies. In contrast, assembly by environment alteration is more desirable as compared to surface alteration for assembling NPs such as, quantum dots whose properties are extremely sensitive to their surface structure. Thus, this study provides a general guideline for designing future functional NCs. 2019 English text The Ohio State University / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=osu1565887276935787 http://rave.ohiolink.edu/etdc/view?acc_num=osu1565887276935787 restricted--full text unavailable until 2024-12-16 This thesis or dissertation is protected by copyright: all rights reserved. It may not be copied or redistributed beyond the terms of applicable copyright laws.

Similar Items