Patent ID: 7276381

Claim:
A device comprising: (a) a metal substrate having a surface; and (b) a polymeric material attached to said surface, wherein said polymeric material comprises a photo-reactive polymer that absorbs photo-irradiation from a high fluence source to generate thermal energy, and transfers said thermal energy to allow desorption and ionization of an analyte in operative contact with said photo-reactive polymer, said photo-reactive polymer comprising a copolymer formed by copolymerization of octadecylmethacrylate and a polymerizable energy absorbing molecule, wherein said polymerizable energy absorbing molecule is a member selected from α-cyano-4-acryloyloxycinnamic acid; trans-3,5-dimethoxy-4-acryoyloxycinnamic acid; and combinations thereof, wherein R 1 is a member selected from the group consisting of H, NR 4 R 5 , OR 6 , substituted or unsubstituted alkyl, substituted or unsubstituted heteroalkyl and substituted or unsubstituted aryl; R 2 is a member selected from the group consisting of NR 4 R 5 , OR 6 , substituted or unsubstituted alkyl, substituted or unsubstituted heteroalkyl and substituted or unsubstituted aryl; X 1 , X 2 and X 3 , are members independently selected from the group consisting of O, and S; and R 4 , R 5 , R 6 , R 7 , and R 8 are members independently selected from the group consisting of H, substituted or unsubstituted alkyl, substituted or unsubstituted heteroalkyl and substituted or unsubstituted aryl.