Abstract
The development of miniaturized chromatographic systems localized within individual polymer microspheres and their incorporation into a bead-based cross-reactive sensor array platform is reported. The integrated chromatographic and detection concept is based on the creation of distinct functional layers within the microspheres. In this first example of the new methodology, complexing ligands have been selectively immobilized to create "separation" layers harboring an affinity for various metal cations. Additionally, a broadly responsive compleximetric dye is used to yield the "detection" layers that exhibit optical responses in the presence of a wide range of metal cations. Information concerning the identities and concentrations of solution-dissolved metal cations can be drawn from the temporal properties of the beads' optical responses. Varying the nature of the ligand in the separation shell yields a collection of cross-reactive sensing elements well-suited for use in array-based micrototal analysis systems. Accordingly, such beads have been incorporated into the "Electronic Taste Chip" platform and used for discriminating among aqueous metal cation solutions.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 2870-2871 |
| Number of pages | 2 |
| Journal | Journal of the American Chemical Society |
| Volume | 125 |
| Issue number | 10 |
| DOIs | |
| State | Published - Mar 12 2003 |
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ASJC Scopus subject areas
- Chemistry(all)
Cite this
Multishell microspheres with integrated chromatographic and detection layers for use in array sensors. / Goodey, Adrian P.; McDevitt, John.
In: Journal of the American Chemical Society, Vol. 125, No. 10, 12.03.2003, p. 2870-2871.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Multishell microspheres with integrated chromatographic and detection layers for use in array sensors
AU - Goodey, Adrian P.
AU - McDevitt, John
PY - 2003/3/12
Y1 - 2003/3/12
N2 - The development of miniaturized chromatographic systems localized within individual polymer microspheres and their incorporation into a bead-based cross-reactive sensor array platform is reported. The integrated chromatographic and detection concept is based on the creation of distinct functional layers within the microspheres. In this first example of the new methodology, complexing ligands have been selectively immobilized to create "separation" layers harboring an affinity for various metal cations. Additionally, a broadly responsive compleximetric dye is used to yield the "detection" layers that exhibit optical responses in the presence of a wide range of metal cations. Information concerning the identities and concentrations of solution-dissolved metal cations can be drawn from the temporal properties of the beads' optical responses. Varying the nature of the ligand in the separation shell yields a collection of cross-reactive sensing elements well-suited for use in array-based micrototal analysis systems. Accordingly, such beads have been incorporated into the "Electronic Taste Chip" platform and used for discriminating among aqueous metal cation solutions.
AB - The development of miniaturized chromatographic systems localized within individual polymer microspheres and their incorporation into a bead-based cross-reactive sensor array platform is reported. The integrated chromatographic and detection concept is based on the creation of distinct functional layers within the microspheres. In this first example of the new methodology, complexing ligands have been selectively immobilized to create "separation" layers harboring an affinity for various metal cations. Additionally, a broadly responsive compleximetric dye is used to yield the "detection" layers that exhibit optical responses in the presence of a wide range of metal cations. Information concerning the identities and concentrations of solution-dissolved metal cations can be drawn from the temporal properties of the beads' optical responses. Varying the nature of the ligand in the separation shell yields a collection of cross-reactive sensing elements well-suited for use in array-based micrototal analysis systems. Accordingly, such beads have been incorporated into the "Electronic Taste Chip" platform and used for discriminating among aqueous metal cation solutions.
UR - http://www.scopus.com/inward/record.url?scp=0037433591&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0037433591&partnerID=8YFLogxK
U2 - 10.1021/ja029696h
DO - 10.1021/ja029696h
M3 - Article
C2 - 12617642
AN - SCOPUS:0037433591
VL - 125
SP - 2870
EP - 2871
JO - Journal of the American Chemical Society
JF - Journal of the American Chemical Society
SN - 0002-7863
IS - 10
ER -