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Erschienen in:
2005 | OriginalPaper | Buchkapitel
Combinatorial Method for Surface-Confined Sensor Design and Fabrication
verfasst von : Lourdes Basabe-Desmonts, Rebecca S. Zimmerman, David N. Reinhoudt, Mercedes Crego-Calama
Erschienen in: Frontiers in Chemical Sensors
Verlag: Springer Berlin Heidelberg
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The procedure for the combinatorial fabrication of new sensing materials for cations and anions based on self-assembled monolayers (SAM) is discussed. A library of different sensitive substrates is generated by sequential deposition of fluorophores and small ligand molecules onto an amino-terminated SAM coated glass. The preorganization provided by the surface avoids the need for complex receptor design, allowing for a combinatorial approach to sensing systems based on individually deposited small molecules. Additionally the sensing system has been miniaturized to the microscale using microcontact printing and integrating the sensory SAMs on the walls of microchannels.