Substrates, preparation and use

摘要

There is disclosed process for preparing a substrate the process comprising the steps of: (a) applying one or more probe species optionally dispersed in a carrier medium to a substrate having a plurality of reactive sites thereon and/or a plurality of substrates having at least one reactive site thereon; (b) reacting the or each probe species with one or more reactive site(s) on the substrate(s) to strongly link the or each probe species thereto, to form one or more functionalised substrate(s), where: the linking reaction exhibits at least one of the following properties: (i) occurs in a sufficiently fast manner under the process conditions so that the reaction is substantially complete; (ii) achieves the strong link to the substrate in single step; and/or (iii) forms a link which is substantially irreversible under the conditions of use of the substrate and/or a multi-reactive system comprising said substrate. and/or where: one or more reactive site(s) comprise one or more activated unsaturated moiet(ies) and/or complement(s) thereof; and one or more probe species are reactive with respectively said complement(s) of activated unsaturated moiet(ies) and/or said activated unsaturated moiet(ies). Preferred activated unsaturated moiet(ies) comprises unsaturated ester moiet(ies) such as (meth)acrylate moiet(ies). Preferred probes comprise amino groups thereon. Preferred strong links are covalent bonds. Preferred linking reactions are Michael addition reactions. The substrate having probes deposed thereon may be used to interact with a target. Other aspects of the invention relate to substrates and multi-reactive systems (such as micro-arrays) so prepared; uses thereof; and products and information obtained therefrom.