Patent ID: 7939613

Claim:
A water-soluble conjugated polyene compound comprising a backbone structure of a formula selected from the group consisting of: wherein, R and R′ are independently selected from X, B(OH) 2 , (X) n COOR″, (X) n COOH, (X) n NH 2 , (X) n NHR″, (X) n NR″ 2 , (X) n N+R″ 3 Br − , (X) n OH, (X) n SH, (X) n SO 3 − Na + , X is selected from (CH 2 ) n (n is not 0), O(CH 2 ) n , NH(CH 2 ) n , N[(CH 2 ) n ] 2 , and (OCH 2 CH 2 ) n ; R″ is selected from R, R′, (CH 2 ) n CH 3 , CONH—X—, COO—X—, C 6 H 5 —R, —CH 2 —C 6 H 5 , and C 6 H 5 ; and wherein n=0 to 20, and the compound is water-soluble and exhibits aggregation induced emission.