Document Detail

Non-emissive colour filters for fluorescence detection.
MedLine Citation:
PMID:  21350748     Owner:  NLM     Status:  Publisher    
We describe a simple technique for fabricating non-emissive colour filters based on the sensitisation of a highly porous nanostructured metal-oxide film with a monolayer of dye molecules. Ultrafast electron transfer at the oxide/dye interface induces efficient quenching of photogenerated excitons in the dye, reducing the photoluminescence quantum yield by many orders of magnitude. The resultant filters exhibit much less autofluorescence than conventional colour filters (where the chromophore is dispersed in a glass or polymer host), and are a viable low cost alternative to interference filters for microfluidic devices and other applications requiring non-emissive filtering.
Mikihide Yamazaki; Oliver Hofmann; Gihan Ryu; Li Xiaoe; Tai Kyu Lee; Andrew J Demello; John C Demello
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-2-24
Journal Detail:
Title:  Lab on a chip     Volume:  -     ISSN:  1473-0189     ISO Abbreviation:  -     Publication Date:  2011 Feb 
Date Detail:
Created Date:  2011-2-25     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101128948     Medline TA:  Lab Chip     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Department of Chemistry, Imperial College London, South Kensington, London, United KingdomSW7 2AZ.
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