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- Björk, PerLinköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska högskolan (author)
Dynamics of complex formation between biological and luminescent conjugated polyelectrolytes - a surface plasmon resonance study
- Article/chapterEnglish2005
Publisher, publication year, extent ...
- Elsevier BV,2005
- printrdacarrier
Numbers
- LIBRIS-ID:oai:DiVA.org:liu-12725
- https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-12725URI
- https://doi.org/10.1016/j.bios.2004.07.001DOI
Supplementary language notes
- Language:English
- Summary in:English
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- SwePubSwePub
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Notes
- A water-soluble polythiophene, POWT, with zwitterionic peptide like side chains possess good characteristics for biosensor applications. The zwitterionic side chains of the polymer can couple to biomolecules via electrostatic and hydrogen bonding. This creates possibilities to imprint biomolecules to spin-coated polymer films with maintained functionality, and use the resulting matrix as a biosensor. Polymer-biomolecular interaction studies done with surface plasmon resonance (SPR) reveal a well performing sensor matrix with high affinity for DNA hybridizations as well as for protein detection. The responses are distinct and very specific. A directional dependence of antibodies binding to POWT layer has also been observed. The polymer films have also been characterized by optical methods. Emission and absorption measurements in different buffer systems confirm that the polymer matrix can undergo structural and conformational changes on surfaces. The dielectric function in the interval 300–800 nm of POWT is reported, based on variable angle spectroscopic ellipsometry. This modeling reveals that a considerable amount of water is included in the material. The polymer layer possesses the characteristics needed for biochip applications and micro array techniques.
Subject headings and genre
- DNA; Protein; SPR; Sensor; Conjugated polymer; Ellipsometry
- TECHNOLOGY
- TEKNIKVETENSKAP
Added entries (persons, corporate bodies, meetings, titles ...)
- Persson, Nils-KristerLinköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska högskolan(Swepub:liu)nilpe57 (author)
- Nilsson, PeterLinköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska högskolan(Swepub:liu)petni61 (author)
- Åsberg, PeterLinköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska högskolan(Swepub:liu)petas91 (author)
- Inganäs, OlleLinköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska högskolan(Swepub:liu)ollin59 (author)
- Linköpings universitetBiomolekylär och Organisk Elektronik (creator_code:org_t)
Related titles
- In:Biosensors and Bioelectronics: Elsevier BV20:9, s. 1764-17710956-5663
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