Studies in Framework Science Metal-organic Framework Composites BET Theory and Adsorption Reticular Chemistry and DNA Frameworks
type: CreativeWork
description: Abstract Surfaces and self-assembly, two quintessential parts of modern nanotechnology, meet in the porous framework, a material formed by self-assembly and consisting only of surfaces, no bulk. This dissertation outlines the triangular relationship between frameworks, surfaces, and self-assembly. As such, it is organised in three distinct projects each corresponding to one of the three poles of this triangle. Frameworks | In this project, the chemistry of metal-organic framework (MOF) composites is explored. MOFs are porous coordination crystals made from the assembly of metal nodes and organic linkers. The Zr-MOF NU-901, which is known for its high thermal and chemical stability, is grown around plasmonic gold nanorods (AuNRs) in a core-shell bottlearound- ship encapsulation, and the synthesis is optimised to various morphology parameters. The resulting AuNR@NU-901 composites have multiple plasmonic applications. First, their use as drug delivery vehicles is explored: in this project, the photothermal energy conversion of AuNRs is used to trigger drug release from a MOF’s porosity under near-infrared light activation. In the second application, the composites were used as size-selective Raman sensors. Here, the MOFs porosity was used as a size-exclusion filter to gate the access of molecules to the plasmonic core where their characteristic Raman signal was amplified. In this proof-of-principle study, size-selective sensing from a mixed analyte solution was demonstrated, making AuNR@NU-901 a viable candidate for potential pollutant or pesticide sensing. Surfaces | The Brunauer-Emmett-Teller (BET) theory is one of the most widely used equations in physical chemistry. Developed in the 1930s, to this day it remains the most important figure of merit in porosimetry with far-reaching industrial and academic influences. Despite its widespread use, there remain significant issues with the manual calculation of BET surface areas. To probe this, 115 international collaborat…
abstract: Abstract Surfaces and self-assembly, two quintessential parts of modern nanotechnology, meet in the porous framework, a material formed by self-assembly and consisting only of surfaces, no bulk. This dissertation outlines the triangular relationship between frameworks, surfaces, and self-assembly. As such, it is organised in three distinct projects each corresponding to one of the three poles of this triangle. Frameworks | In this project, the chemistry of metal-organic framework (MOF) composites is explored. MOFs are porous coordination crystals made from the assembly of metal nodes and organic linkers. The Zr-MOF NU-901, which is known for its high thermal and chemical stability, is grown around plasmonic gold nanorods (AuNRs) in a core-shell bottlearound- ship encapsulation, and the synthesis is optimised to various morphology parameters. The resulting AuNR@NU-901 composites have multiple plasmonic applications. First, their use as drug delivery vehicles is explored: in this project, the photothermal energy conversion of AuNRs is used to trigger drug release from a MOF’s porosity under near-infrared light activation. In the second application, the composites were used as size-selective Raman sensors. Here, the MOFs porosity was used as a size-exclusion filter to gate the access of molecules to the plasmonic core where their characteristic Raman signal was amplified. In this proof-of-principle study, size-selective sensing from a mixed analyte solution was demonstrated, making AuNR@NU-901 a viable candidate for potential pollutant or pesticide sensing. Surfaces | The Brunauer-Emmett-Teller (BET) theory is one of the most widely used equations in physical chemistry. Developed in the 1930s, to this day it remains the most important figure of merit in porosimetry with far-reaching industrial and academic influences. Despite its widespread use, there remain significant issues with the manual calculation of BET surface areas. To probe this, 115 international collaborat…
author: Osterrieth, Johannes
language: eng
keywords: Metal-organic frameworks, Nanotechnology, BET theory, MOF composites
license: https://apollo8-f-pro.lib.cam.ac.uk/bitstreams/8ba946d9-7b4c-469c-a5b3-f36ade0b4fa3/download
license: https://www.rioxx.net/licenses/all-rights-reserved/
date published: 2021-04-02
date modified: 2026-07-22T22:24:18Z
provider: Cambridge University
publisher: Networked Digital Library of Theses and Dissertations
type: WebPage
source organization: University of Cambridge

PropertyValue
property ID: DOI
value: 10.17863/CAM.76592