期刊
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
卷 392, 期 1-2, 页码 177-185出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s00216-008-2254-y
关键词
molecular imprinting; polymers; molecular recognition; modulation
资金
- National Science Foundation of China [20603010]
- Science Foundation of Hubei Province [2007ABA339, 2007ABA381]
The concept used to realize the modulation of molecular recognition in a molecularly imprinted polymer is presented. Creating a thermal phase transition within the binding framework, the imprinted material was prepared using Boc-phenylalanine as the template and pNIPAM as the sensitive unit. The results indicate that such a transition causes a clear modulation in the recognition behavior of the prepared polymer which depends on the operation temperature. At a relatively low temperature, the prepared polymer acts like a traditionally imprinted one, showing a highly specific recognition for the imprint species. However, the prepared polymer does not present any notable resolution at 40 C. This recognition behavior is comparable to a process that can be switched on and off, thus making modulated recognition feasible.
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