Patent ID: 7364918

Claim:
A colorimetric sensor for detecting an analyte, comprising: a receptor; and a polymerized composition comprising at least one compound of the formula R 3 , R 8 , R 13 , R 21 , R 24 , R 31 and R 33 are independently C 1 -C 20 alkyl; R 4 , R 7 , R 14 , R 16 , R 19 , R 20 , R 22 , R 25 , and R 32 are independently C 1 -C 14 alkylene; R 6 , R 15 , R 18 , and R 26 are independently C 1 -C 14 alkylene, C 2 -C 8 alkenylene, or C 6 -C 13 arylene; R 9 is C 1 -C 14 alkylene or —NR 34 —; R 10 , R 12 , R 27 , and R 29 are independently C 1 -C 14 alkylene or (C 1 -C 14 alkylene)-(C 2 -C 8 arylene); R 11 and R 28 are independently C 2 -C 30 alkynyl; R 17 is an ester-activating group; R 23 is C 6 -C 13 arylene; R 30 is C 1 -C 14 alkylene or —NR 36 —; R 34 , and R 36 are C 1 -C 4 alkyl; p is 1-5; n is 1-20; wherein R 1 and R 2 are not the same; wherein the receptor is incorporated into the polymerized composition to form a transducer; and wherein the transducer exhibits a color change when contacted with an analyte.