High-throughput optical methods for the analysis of chirality

COMP 88

Eric V. Anslyn, anslyn@ccwf.cc.utexas.edu, Department of Chemistry and Biochemistry, The University of Texas, Austin, TX 78712 and Shagufta Shabbir, Department of Chemistry and Biochemistry, The University of Texas at Austin, 1 University Station, A5300, Austin, TX 78712.
The creation of optical methods to analyze for enantiomeric excess during the high-throughput screening of asymmetric catalytic reactions is a current thrust of many academic and industrial laboratories. The approach presented at this poster session uses chiral synthetic receptors in arrays with simple indicators for signaling. The strategy is to use a core binding element that imparts a bias to each and every member of the array to a particular chiral functional group, ensuring affinity of the arrays members for a particular class of chrial analytes. Cross-reactivity among the receptors imparts the differential behavior desired in an array sensing application. The response of the array is used to train a pattern recognition algorithum, such as an artificial neural network. The arrays are then used to read the enantiomeric excess of truly unknown samples derived from synthetic chemistry procedures.