Patent ID: 7153896

Claim:
An element for the attachment of protein arrays, the element comprising a surface to which are attached a plurality of piperazine functional groups; a polymer; a crosslinking compound A-L-B; wherein A is a functional group capable of interacting with a piperazine functional group of the invention; L is a linking group capable of interacting with A and with B; and B is a specific functionality that provides one or more reactive units capable of interacting with a protein capture agent, and wherein the piperazine functional groups are represented by Formula I: where R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 , R 10 , are hydrogen, alkyl, alkenyl, alkynyl, alkylhalo, cycloalkyl, cycloalkenyl, alkylthio, alkoxy, with the proviso that at least one of the groups R 1 to R 10 be a linkage group (L′).