Fluorescent dyes comprising m-conjugated 1,1 -binaphthyl-based polymers

A conjugate having the general formula (I)

• With AR, MU and L1 as repeating units of a polymer
• MU is a polymer modifying unit or band gap modifying unit that is evenly or randomly distributed along the polymer main chain,
• L1 is an aryl or a heteroaryl group evenly or randomly distributed along the polymer,
• L2 is an aryl or a heteroaryl group located on the ends of the polymer,
• FL is a fluorescent moiety,
• G1 and G2 stand for hydrogen, halogen or an antigen recognizing moiety, with the provision that at least one of G1 or G2 is an antigen recognizing moiety,
• a is 10 to 100 mol %,
• b is 0.1 to 50 mol %
• c is 0 to 90 mol %
• d is 1 to 10,000;
• with the provision that a+b+c=100 mol %
• characterized in that AR is connected in the polymer chain via the 2,2′ or 3,3′ or 5,5′ or 6,6′ or 7,7′ or 8,8′position according to general formula (II)
• wherein position 2,2′;
• 3,3′;
• 4,4′;
• 5,5′;
• 6,6′;
• 7,7′;
• 8,8′ are same or different substituted with residues selected from the group consisting of H, SO2CF3, SO2Ra, CF3, CCl3, CN, SO3H, NO2, NRaRbRc+, CHO, CORa, CO2Ra, COCl, CONRaRb, F, Cl, Br, I, Ra, ORa, SRa, OCORa, NRaRb, NHCORa, CCRa, aryl-, heteroaryl-, C6H4ORa or C6H4NRaRb, with Ra-c independently hydrogen, alkyl-, alkenyl-, alkinyl-, heteroalkyl-, aryl-, heteroaryl-, cycloalkyl-, alkylcycloalkyl-, heteroalkylcycloalkyl-, heterocycloalkyl-, aralkyl- or a heteroaralkyl residue or (CH2)x,(OCH2CH2)yO(CH2)zCH3 where
• x is an integer from 0-20 and
• y is an integer from 0 to 50;
• z is an integer from 0-20,
• or two residues both as part of a cycloalkyl- or heterocycloalkyl ring system.