Svensson, Fredric
(2020).
Hybrid nano titania: molecular formation mechanisms and applications in nanotechnology.
Diss. (sammanfattning/summary)
Sveriges lantbruksuniv.,
Acta Universitatis Agriculturae Sueciae, 1652-6880
ISBN 978-91-7760-630-7
eISBN 978-91-7760-631-4
[Doctoral thesis]
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PDF
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Abstract
Nanomaterials are defined as materials with one dimension smaller than 100 nm. At this size, exotic properties start to emerge, making them interesting for a wide range of applications including catalysis, electronics, theranostics, and “smart materials”. Particularly engineered metal oxide nanoparticles have found advanced applications in medical therapy and catalysis. Because of the small size and required homogeneity of these materials, bottom-up synthesis starting from molecular precursors is often the preferred way of production. The present work was initiated with the main purpose to bring insight in the whole chain in materials design and application – from precursor chemistry in the synthesis to physical chemical and biological characteristics of the resulting nanomaterials. It is thus an interdisciplinary project, covering the fields of both chemistry and biology. The chemical part presents synthesis, self-assembly, and chemical characterization of titania nanopowders, hollow titania spheres, and nanotitania-nanocellulose hybrid materials. The biological part primarily evaluates titania-nanocellulose hybrid materials for drug delivery applications using in vitro bacterial cultures and immunological (coagulation-related) responses in human whole blood. Not unexpectedly, titania-nanocellulose hybrids generally induced strong coagulation via the contact activation system. An extensive part of the thesis is dedicated to the solution behavior, stability, and transformation of heteroleptic titanium oxo-alkoxides into nanotitania, using a variety of characterization techniques. The observations support the MTSAL mechanism for formation of metal oxide nanoparticles. No hydrolytic stability, however, from ligandmodification of titanium (oxo-) alkoxides could be observed.
Authors/Creators: | Svensson, Fredric |
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Title: | Hybrid nano titania: molecular formation mechanisms and applications in nanotechnology. |
Series Name/Journal: | Acta Universitatis Agriculturae Sueciae |
Year of publishing : | 2020 |
Number: | 2020:56 |
Number of Pages: | 118 |
Publisher: | Department of Molecular Sciences, Swedish University of Agricultural Sciences |
ISBN for printed version: | 978-91-7760-630-7 |
ISBN for electronic version: | 978-91-7760-631-4 |
ISSN: | 1652-6880 |
Language: | English |
Publication Type: | Doctoral thesis |
Article category: | Other scientific |
Version: | Published version |
Full Text Status: | Public |
Subjects: | (A) Swedish standard research categories 2011 > 1 Natural sciences > 104 Chemical Sciences > Inorganic Chemistry (A) Swedish standard research categories 2011 > 2 Engineering and Technology > 210 Nano Technology > Nano Technology |
Keywords: | Titania, Nanocellulose, Nanomaterials, Hybrid materials, Biomaterials, Drug delivery, Coordination chemistry, MTSAL, Photocatalysis |
URN:NBN: | urn:nbn:se:slu:epsilon-p-108223 |
Permanent URL: | http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-108223 |
ID Code: | 17878 |
Faculty: | NJ - Fakulteten för naturresurser och jordbruksvetenskap |
Department: | (NL, NJ) > Department of Molecular Sciences |
Deposited By: | SLUpub Connector |
Deposited On: | 26 Oct 2020 10:40 |
Metadata Last Modified: | 15 Jan 2021 19:46 |
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