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  • Martinsson, Erik,1983-Linköpings universitet,Molekylär fysik,Tekniska högskolan (författare)

Nanoplasmonic Sensing using Metal Nanoparticles

  • BokEngelska2014

Förlag, utgivningsår, omfång ...

  • 2014-11-06
  • Linköping :Linköping University Electronic Press,2014
  • 76 s.
  • electronicrdacarrier

Nummerbeteckningar

  • LIBRIS-ID:oai:DiVA.org:liu-111841
  • ISBN:9789175192239
  • https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-111841URI
  • https://doi.org/10.3384/diss.diva-111841DOI

Kompletterande språkuppgifter

  • Språk:engelska
  • Sammanfattning på:engelska

Ingår i deldatabas

Klassifikation

  • Ämneskategori:vet swepub-contenttype
  • Ämneskategori:dok swepub-publicationtype

Serie

  • Linköping Studies in Science and Technology. Dissertations,0345-7524 ;1624

Anmärkningar

  • In our modern society, we are surrounded by numerous sensors, constantly feeding us information about our physical environment. From small, wearable sensors that monitor our physiological status to large satellites orbiting around the earth, detecting global changes. Although, the performance of these sensors have been significantly improved during the last decades there is still a demand for faster and more reliable sensing systems with improved sensitivity and selectivity. The rapid progress in nanofabrication techniques has made a profound impact for the development of small, novel sensors that enables miniaturization and integration. A specific area where nanostructures are especially attractive is biochemical sensing, where the exceptional properties of nanomaterials can be utilized in order to detect and analyze biomolecular interactions. The focus of this thesis is to investigate plasmonic nanoparticles composed of gold or silver and optimize their performance as signal transducers in optical biosensors. Metal nanoparticles exhibit unique optical properties due to excitation of localized surface plasmons, which makes them highly sensitive probes for detecting small, local changes in their surrounding environment, for instance the binding of a biomolecule to the nanoparticle surface. This is the basic principle behind nanoplasmonic sensing based on refractometric detection, a sensing scheme that offers real-time and label-free detection of molecular interactions. This thesis shows that the sensitivity for detecting local refractive index changes is highly dependent on the geometry of the metal nanoparticles, their interaction with neighboring particles and their chemical composition and functionalization. An increased knowledge about how these parameters affects the sensitivity is essential when developing nanoplasmonic sensing devices with high performance based on metal nanoparticles. 

Ämnesord och genrebeteckningar

Biuppslag (personer, institutioner, konferenser, titlar ...)

  • Aili, Daniel,Associate ProfessorLinköpings universitet,Molekylär fysik,Tekniska högskolan(Swepub:liu)danai11 (preses)
  • Liedberg, Bo,ProfessorLinköpings universitet,Molekylär fysik,Tekniska högskolan(Swepub:liu)boli31 (preses)
  • Enander, Karin,Associate ProfessorLinköpings universitet,Molekylär fysik,Tekniska högskolan(Swepub:liu)karen14 (preses)
  • Dostálek, Jakub,Ph.D.AIT-Austrian Institute of Technology, Vienna, Austria (opponent)
  • Linköpings universitetMolekylär fysik (creator_code:org_t)

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