Solid state dendrimer sensors: effect of dendrimer dimensionality on detection and sequestration of 2,4-dinitrotoluene

Simple item page
dc.contributor.authorCavaye, Hen_AU
dc.contributor.authorShaw, PEen_AU
dc.contributor.authorSmith, ARGen_AU
dc.contributor.authorBurn, PLen_AU
dc.contributor.authorGentle, IRen_AU
dc.contributor.authorJames, Men_AU
dc.contributor.authorLo, SCen_AU
dc.contributor.authorMeredith, Pen_AU
dc.date.accessioned2011-11-23T01:16:42Zen_AU
dc.date.available2011-11-23T01:16:42Zen_AU
dc.date.issued2011-09-22en_AU
dc.date.statistics2011-11-23en_AU
dc.description.abstractWe compare two dendrimers, which contain the same luminescent chromophores but differ in dimensionality, for the detection of an explosive analyte via PL quenching. Each dendrimer has first generation biphenyl dendrons with 2-ethylhexyloxy surface groups but differ in the core units. One dendrimer has a bifluorene core and hence has a “planar†structure, whereas the second has four bifluorene units tetrahedrally arranged around an adamantyl center and hence has a “three-dimensional†structure. Solution Stern–Volmer measurements have previously been reported to show that the three-dimensional dendrimer has a higher binding constant than that of the more planar compound. Films of the dendrimers rapidly detect 2,4-dinitrotoluene (DNT) with thinner films (∼25 nm) being more responsive than thicker films (∼85 nm). Neutron reflectometry measurements show that the analyte can diffuse completely through the films with the three-dimensional dendrimer absorbing more of the analyte. The rate of recovery of the PL was faster for the planar dendrimer than the three-dimensional material showing that large binding constants are not necessary for reversible detection of analytes.© 2011, American Chemical Societyen_AU
dc.identifier.citationCavaye, H., Shaw, P. E., Smith, A. R. G., Burn, P. L., Gentle, I. R., James, M., Lo, S. C., & Meredith, P. (2011), Solid state dendrimer sensors: effect of dendrimer dimensionality on detection and sequestration of 2,4-dinitrotoluene. Journal of Physical Chemistry C, 115(37), 18366-18371. doi:10.1021/jp2055136sen_AU
dc.identifier.govdoc3787en_AU
dc.identifier.issn1932-7447en_AU
dc.identifier.issue37en_AU
dc.identifier.journaltitleJournal of Physical Chemistry Cen_AU
dc.identifier.pagination18366-18371en_AU
dc.identifier.urihttp://dx.doi.org/10.1021/jp2055136sen_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/3884en_AU
dc.identifier.volume115en_AU
dc.language.isoenen_AU
dc.publisherAmerican Chemical Societyen_AU
dc.subjectSensorsen_AU
dc.subjectLuminescenceen_AU
dc.subjectNeutron reflectorsen_AU
dc.subjectMeasuring methodsen_AU
dc.subjectFilmsen_AU
dc.subjectFluorescenceen_AU
dc.titleSolid state dendrimer sensors: effect of dendrimer dimensionality on detection and sequestration of 2,4-dinitrotolueneen_AU
dc.typeJournal Articleen_AU
Files
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Journal Articles