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Self-assembly and chiral recognition of quartz crystal microbalance chiral sensor

✍ Scribed by Miao Li Luo; Wei Guang Zhang; Sheng Zhang; Jun Fan; Wen Cui Su; Xia Yin

Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
769 KB
Volume
22
Category
Article
ISSN
0899-0042

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✦ Synopsis

Abstract

A novel chiral sensor based on the self‐assembled monolayer of (6^A^‐ω‐mercaptoethylureado‐6^A^‐deoxy)heptakis(2,3‐di‐o‐phenylcarbamoyl)‐6^B^, 6^C^, 6^D^, 6^E^, 6^F^, 6^G^‐ hexa‐o‐phenylcarbamoyl‐β‐cyclodextrin (Ph‐β‐CD‐SH) on a quartz crystal transducer for chiral recognition was set up. (R,S)‐(±)‐(3‐Methoxyphenyl)ethylamine were recognized by this QCM chiral sensor with a QCM chiral discrimination factor of 1.33. Furthermore, UV spectroscopy was used to investigate the mechanism of host‐guest interactions between (6^A^‐azido‐6^A^‐deoxy)heptakis(2,3‐di‐o‐phenylcarbamoyl)‐6^B^, 6^C^, 6^D^, 6^E^, 6^F^, 6^G^‐hexa‐o‐phenylcarbamoyl‐β‐cyclodextrin (Ph‐β‐CD) and (R,S)‐(±)‐(3‐methoxyphenyl) ethylamine. The UV discrimination factor was determined to be 0.066. Chirality, 2010. © 2009 Wiley‐Liss, Inc.

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