Matches in SemOpenAlex for { <https://semopenalex.org/work/W2055461192> ?p ?o ?g. }
- W2055461192 endingPage "5793" @default.
- W2055461192 startingPage "5788" @default.
- W2055461192 abstract "Cationic poly[9,9′-bis[6′′-(N,N,N-trimethylammonium)hexyl]fluorene-co-alt-phenylene]s with five different counterions (CIs) were synthesized and studied as fluorescence resonance energy transfer (FRET) donors (D) to dye-labeled DNA (FRET acceptor, A). The polymers with different CIs show the same π-conjugated electronic structure with similar absorption (λabs = ∼380 nm) and photoluminescence (λPL = ∼420 nm) emission spectra in water. The CIs accompanying the polymer chain are expected to affect the D/A complexation and modify the D−A intermolecular separation by acting as a spacer. Polymers with different CIs function differently as FRET excitation donors to fluorescein (Fl)-labeled single-stranded DNA (ssDNA-Fl). The FRET-induced Fl emission was enhanced significantly by the larger CI-exchanged polymers. The polymers with the CIs of tetrakis(1-imidazolyl)borate (FPQ-IB) and tetraphenylborate (FPQ-PB) showed a 2−4-fold enhancement in the FRET-induced signal compared with the polymer with bromide (FPQ-BR). The delayed FRET signal saturation and low association constants (Ka) with ssDNA-Fl (3.53 × 106 M−1 for FPQ-BR and 1.80 × 106 M−1 for FPQ-PB) were measured for the polymers with larger CIs. The delayed acceptor saturation strengthens the antenna effect and reduces self-quenching of Fl by increasing the polymer concentration near Fl. The weak polymer/ssDNA-Fl association reduces the amount of energy-wasting charge transfer by increasing D−A intermolecular separation. The combined effects lead to increase the overall FRET-induced signal." @default.
- W2055461192 created "2016-06-24" @default.
- W2055461192 creator A5002555859 @default.
- W2055461192 creator A5010024311 @default.
- W2055461192 creator A5010027820 @default.
- W2055461192 creator A5044382039 @default.
- W2055461192 creator A5069460253 @default.
- W2055461192 date "2009-04-06" @default.
- W2055461192 modified "2023-10-10" @default.
- W2055461192 title "Counterion Effects on Fluorescence Energy Transfer in Conjugated Polyelectrolyte-Based DNA Detection" @default.
- W2055461192 cites W1968040519 @default.
- W2055461192 cites W1972078733 @default.
- W2055461192 cites W1972158411 @default.
- W2055461192 cites W1972762368 @default.
- W2055461192 cites W1975170914 @default.
- W2055461192 cites W1978594082 @default.
- W2055461192 cites W1980060705 @default.
- W2055461192 cites W1982842302 @default.
- W2055461192 cites W1982904188 @default.
- W2055461192 cites W1987514336 @default.
- W2055461192 cites W1994104251 @default.
- W2055461192 cites W2000213125 @default.
- W2055461192 cites W2000289097 @default.
- W2055461192 cites W2003142997 @default.
- W2055461192 cites W2007863706 @default.
- W2055461192 cites W2009057700 @default.
- W2055461192 cites W2011853532 @default.
- W2055461192 cites W2014287611 @default.
- W2055461192 cites W2022408312 @default.
- W2055461192 cites W2023393171 @default.
- W2055461192 cites W2027261603 @default.
- W2055461192 cites W2045302304 @default.
- W2055461192 cites W2046748991 @default.
- W2055461192 cites W2050299454 @default.
- W2055461192 cites W2050396167 @default.
- W2055461192 cites W2051357892 @default.
- W2055461192 cites W2054474970 @default.
- W2055461192 cites W2056148800 @default.
- W2055461192 cites W2062828491 @default.
- W2055461192 cites W2069124127 @default.
- W2055461192 cites W2071825279 @default.
- W2055461192 cites W2075668658 @default.
- W2055461192 cites W2080258678 @default.
- W2055461192 cites W2082742028 @default.
- W2055461192 cites W2085044752 @default.
- W2055461192 cites W2085672085 @default.
- W2055461192 cites W2085962835 @default.
- W2055461192 cites W2095983586 @default.
- W2055461192 cites W2108217811 @default.
- W2055461192 cites W2117408322 @default.
- W2055461192 cites W2129995310 @default.
- W2055461192 cites W2132235135 @default.
- W2055461192 cites W2134524605 @default.
- W2055461192 cites W2158269342 @default.
- W2055461192 cites W2165816667 @default.
- W2055461192 cites W2171439488 @default.
- W2055461192 cites W4237943893 @default.
- W2055461192 cites W59526888 @default.
- W2055461192 doi "https://doi.org/10.1021/jp8107733" @default.
- W2055461192 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/19348450" @default.
- W2055461192 hasPublicationYear "2009" @default.
- W2055461192 type Work @default.
- W2055461192 sameAs 2055461192 @default.
- W2055461192 citedByCount "16" @default.
- W2055461192 countsByYear W20554611922012 @default.
- W2055461192 countsByYear W20554611922013 @default.
- W2055461192 countsByYear W20554611922015 @default.
- W2055461192 countsByYear W20554611922018 @default.
- W2055461192 countsByYear W20554611922019 @default.
- W2055461192 countsByYear W20554611922020 @default.
- W2055461192 countsByYear W20554611922021 @default.
- W2055461192 crossrefType "journal-article" @default.
- W2055461192 hasAuthorship W2055461192A5002555859 @default.
- W2055461192 hasAuthorship W2055461192A5010024311 @default.
- W2055461192 hasAuthorship W2055461192A5010027820 @default.
- W2055461192 hasAuthorship W2055461192A5044382039 @default.
- W2055461192 hasAuthorship W2055461192A5069460253 @default.
- W2055461192 hasConcept C121332964 @default.
- W2055461192 hasConcept C145148216 @default.
- W2055461192 hasConcept C166950319 @default.
- W2055461192 hasConcept C178790620 @default.
- W2055461192 hasConcept C183882617 @default.
- W2055461192 hasConcept C185592680 @default.
- W2055461192 hasConcept C188027245 @default.
- W2055461192 hasConcept C26873012 @default.
- W2055461192 hasConcept C2777324032 @default.
- W2055461192 hasConcept C2779892579 @default.
- W2055461192 hasConcept C32909587 @default.
- W2055461192 hasConcept C34814092 @default.
- W2055461192 hasConcept C521977710 @default.
- W2055461192 hasConcept C62520636 @default.
- W2055461192 hasConcept C75473681 @default.
- W2055461192 hasConcept C91881484 @default.
- W2055461192 hasConcept C96305047 @default.
- W2055461192 hasConceptScore W2055461192C121332964 @default.
- W2055461192 hasConceptScore W2055461192C145148216 @default.
- W2055461192 hasConceptScore W2055461192C166950319 @default.
- W2055461192 hasConceptScore W2055461192C178790620 @default.