![4-(4-{4-[4-Fluoro-3-(trifluoromethyl)phenyl]-1-methyl-1H-imidazol-2-yl}-1-piperidinyl)-1H-pyrazolo[3,4-d]pyrimidine 4-methylbenzenesulfonate (1:1) structure](https://static.chemtradehub.com/structs/108/1082949-68-5-00b6.webp "4-(4-{4-[4-Fluoro-3-(trifluoromethyl)phenyl]-1-methyl-1H-imidazol-2-yl}-1-piperidinyl)-1H-pyrazolo[3,4-d]pyrimidine 4-methylbenzenesulfonate (1:1) structure")
4-(4-{4-[4-Fluoro-3-(trifluoromethyl)phenyl]-1-methyl-1H-imidazol-2-yl}-1-piperidinyl)-1H-pyrazolo[3,4-d]pyrimidine 4-methylbenzenesulfonate (1:1)
CAS Number:
1082949-68-5
Molecular Formula:
C28H27F4N7O3S
A non-invasive analysis method for on-chip spectrophotometric detection using liquid-core waveguiding within a 3D architecture
Literature Information
Publication Date
2003-10-17
DOI
10.1039/B309869A
Impact Factor
4.616
Authors
Matthew P. Duggan, Tom McCreedy, Jonathan W. Aylott
View Original
Abstract
The on-chip measurement of absorbing species has proven to be challenging, particularly with respect to the sample pathlengths available in a miniaturised system. This paper demonstrates how the principles of total internal reflection can be utilised to form a liquid-core waveguide along a single microfluidic channel, increasing the sampling pathlength to 5 mm while maintaining a detection volume of ≤1 µL. This was achieved using the Teflon fluoropolymers PTFE, FEP and AF as cladding for the liquid-core waveguide. In conjunction with a 3D chip architecture, the use of the liquid-core waveguide enables more efficient use of the probing light beam along with easy and effective coupling of the source, microfluidic chip and the detection system. The confirmation that waveguiding was occurring was successfully demonstrated and the subsequent spectrophotometric analysis of crystal violet provided a linear calibration with reproducibility (<2.4% RSD) and limits of detection (<1.3 µM), comparable to absorbance measurements made with a standard UV-Vis spectrophotometer.
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Source Journal
Analyst
CiteScore:
7.8
Self-citation Rate:
5.6%
Articles per Year:
653
Analyst publishes analytical and bioanalytical research that reports premier fundamental discoveries and inventions, and the applications of those discoveries, unconfined by traditional discipline barriers.
Recommended Compounds
2-Methyl-2-propanyl 4-(4-bromobenzyl)-1-piperazinecarboxylate
CAS Number:
844891-10-7
Molecular Formula:
C16H23BrN2O2
![4-chloro-N-[5-methyl-2-(7H-pyrrolo[2,3-d]pyrimidine-4-carbonyl)-3-pyridyl]-3-(trifluoromethyl)benzenesulfonamide structure](https://static.chemtradehub.com/structs/110/1100318-47-5-127d.webp "4-chloro-N-[5-methyl-2-(7H-pyrrolo[2,3-d]pyrimidine-4-carbonyl)-3-pyridyl]-3-(trifluoromethyl)benzenesulfonamide structure")
4-chloro-N-[5-methyl-2-(7H-pyrrolo[2,3-d]pyrimidine-4-carbonyl)-3-pyridyl]-3-(trifluoromethyl)benzenesulfonamide
CAS Number:
1100318-47-5
Molecular Formula:
C20H13ClF3N5O3S
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