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Synthetic Polypeptides as Scaffolds for Supramolecular Assembly of Conducting Polymer Nanocomposites
Linköpings universitet, Institutionen för fysik, kemi och biologi, Biomolekylär och Organisk Elektronik. Linköpings universitet, Tekniska högskolan.
Linköpings universitet, Institutionen för fysik, kemi och biologi, Biomolekylär och Organisk Elektronik. Linköpings universitet, Tekniska högskolan.
Linköpings universitet, Institutionen för fysik, kemi och biologi, Biomolekylär och Organisk Elektronik. Linköpings universitet, Tekniska högskolan.
Linköpings universitet, Institutionen för fysik, kemi och biologi, Biomolekylär och Organisk Elektronik. Linköpings universitet, Tekniska högskolan.
Visa övriga samt affilieringar
2010 (Engelska)Manuskript (preprint) (Övrigt vetenskapligt)
Abstract [en]

The development of nanoelectronics has resulted in enormous advancements in fabrication techniques that have enabled massproduction of CMOS circuits with feature sizes below 45nm. There is a large interest in new methods to further push the size limits, lower the production costs and to facilitate the design of more advanced three-dimensional structures beyond today’s 2.5 dimensional architectures. Self-assembly is probably the most important scheme in this development and is currently applied to many different areas and classes of nanoelectronics. Self-assembly enables fabrication of structures well below 10 nm in feature size and allows for incorporation of novel nanomaterials, such as metallic and semiconducting nanoparticles with many interesting optical and electrical properties. The controlled self-assembly of electro-active nanocomposites is of great interest for the development of novel functional materials including biosensors, electrochromic/plasmonic hybrid devices, and polymer/nanoparticle-based memories.

Ort, förlag, år, upplaga, sidor
2010.
Nyckelord [en]
Conducting Polymers, Organic Electronics, Conducting Nanowires, Self- Assembly, Supramolecular Materials
Nationell ämneskategori
Naturvetenskap
Identifikatorer
URN: urn:nbn:se:liu:diva-54901OAI: oai:DiVA.org:liu-54901DiVA, id: diva2:311092
Tillgänglig från: 2010-04-20 Skapad: 2010-04-20 Senast uppdaterad: 2010-04-20
Ingår i avhandling
1. Conjugated Polyelectrolytes in Interactions with Biomolecules for Supramolecular assembly and Sensing
Öppna denna publikation i ny flik eller fönster >>Conjugated Polyelectrolytes in Interactions with Biomolecules for Supramolecular assembly and Sensing
2010 (Engelska)Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
Abstract [en]

Conjugated polyelectrolytes (CP) show interesting electrical and optical properties for organic electronics as well as for life science applications. Their possibilities of supramolecular assembly with nanowire like misfolded proteins, amyloids, as well as synthetic polypeptides or DNA forming conducting or luminescent nano composites is highly interesting as being a truly bottom up approach for fabrication of OLEDs, photovoltaic’s as well as logic devices. The conformation and aggregation dependent luminescence properties from the special class of CPs, Luminescent conjugated polyelectrolytes (LCP), have been utilised and developed as sensors to follow and study biomolecular interactions, DNA hybridisation, protein-protein interactions and staining of living cell cultures and tissue slides. In this thesis we are bringing the evolution a few steps further by applying new types of experimental techniques, such as light scattering and fluorescence correlation spectroscopy, combined with standard techniques as soft lithography and different spectroscopy techniques, to gain better knowledge of the optical behaviour of LCPs and their interactions with biomolecules. We explore the optical properties and vibronic transitions of LCPs; their ability of resonance energy transfer with LCPs indicating super lightning behaviour; the opposite fluorescence shift when interacting with α-helical rich polypeptides compared to earlier reports of interactions upon staining of β-rich amyloids; and the possibility of LCPs to influence protein aggregation as well as the possibility of fabricating biochips based on LCPs and soft lithography. Here we also show fundamental limitations to patterning using macromolecular fluids, of general relevance to soft lithography and nanoimprint lithography with low viscosity polymers.

Ort, förlag, år, upplaga, sidor
Linköping: Linköping University Electronic Press, 2010. s. 60
Serie
Linköping Studies in Science and Technology. Dissertations, ISSN 0345-7524 ; 1308
Nationell ämneskategori
Naturvetenskap
Identifikatorer
urn:nbn:se:liu:diva-54902 (URN)978-91-7393-408-4 (ISBN)
Disputation
2010-05-14, Planck, Fysikhuset, Campus Valla, Linköpings universitet, Linköping, 14:00 (Engelska)
Opponent
Handledare
Tillgänglig från: 2010-04-20 Skapad: 2010-04-20 Senast uppdaterad: 2020-02-19Bibliografiskt granskad

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Hamedi, MahiarWigenius, JensTai, Feng-IBjörk, Per

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