An electrode comprising an electrically conductive substrate, said substrate being coated with a matrix material comprising a sol-gel covalently attached to at least one of an analyte sensitive material (ASM) and an analyte insensitive material (AIM), wherein said sol-gel is formed by crosslinking a compound having the structure of Formula (IV): wherein in the compound of Formula (IV) at least two of R 1 , R 2 and R 3 are independently alkoxy or aryloxy, and the third may be alkyl, aryl, alkoxy, or aryloxy; X 1 is -O- or a chemical bond; L is a linker; Y 1 ' is -CO 2 NR 4 -, -O-, -NR 4 CO-, -RsCO-, -P(O)(OR 6 )O-, -CO 2 -, -O 2 C-, -NR 4 O 2 -, -O 2 CNR 4 , -N=N- or a chemical bond, wherein R 4 , R 5 and R 6 are independently hydrogen, alkyl, or aryl; ASM 1 is an ASM or AIM, wherein ASM 1 is selected from the group consisting of Formulae (V), (VI), (VII) and (VIII): or wherein ASM 1 is derived from Formula (IX), (X), (XI), (XII), (XIII), (XIV), (XV) or (XVI): wherein R 20 , R 21 , R 22 , R 23 , R 24 , R 25 , R 26 , R 27 , R 28 , R 29 , R 30 , R 31 , R 32 and R 33 are independently hydrogen, -CO 2 H, halogen, -OH, -NHR 4 , -SO 2 H, -R 5 CO, -P(O)(OR 6 )(OH), -N 3 , -CN, alkyl, aryl or alkoxy, with the proviso that at least one substituent is -CO 2 H, halogen, -OH, -NHR 4 , -SO 2 H, -RsCO, -P(O)(OR 6 )(OH), -N 3 or -CN. an electrically conductive substrate, said substrate being coated with a matrix material comprising a sol-gel covalently attached to at least one of an analyte sensitive material (ASM) and an analyte insensitive material (AIM), wherein said sol-gel is formed by crosslinking a compound having the structure of Formula (IV): wherein in the compound of Formula (IV) at least two of R 1 , R 2 and R 3 are independently alkoxy or aryloxy, and the third may be alkyl, aryl, alkoxy, or aryloxy; X 1 is -O- or a chemical bond; L is a linker; Y 1 ' is -CO 2 NR 4 -, -O-, -NR 4 CO-, -RsCO-, -P(O)(OR 6 )O-, -CO 2 -, -O 2 C-, -NR 4 O 2 -, -O 2 CNR 4 , -N=N- or a chemical bond, wherein R 4 , R 5 and R 6 are independently hydrogen, alkyl, or aryl; ASM 1 is an ASM or AIM, wherein ASM 1 is selected from the group consisting of Formulae (V), (VI), (VII) and (VIII): or wherein ASM 1 is derived from Formula (IX), (X), (XI), (XII), (XIII), (XIV), (XV) or (XVI): at least two of R 1 , R 2 and R 3 are independently alkoxy or aryloxy, and the third may be alkyl, aryl, alkoxy, or aryloxy; X 1 is -O- or a chemical bond; L is a linker; Y 1 ' is -CO 2 NR 4 -, -O-, -NR 4 CO-, -RsCO-, -P(O)(OR 6 )O-, -CO 2 -, -O 2 C-, -NR 4 O 2 -, -O 2 CNR 4 , -N=N- or a chemical bond, wherein R 4 , R 5 and R 6 are independently hydrogen, alkyl, or aryl; ASM 1 is an ASM or AIM, wherein ASM 1 is selected from the group consisting of Formulae (V), (VI), (VII) and (VIII): or wherein ASM 1 is derived from Formula (IX), (X), (XI), (XII), (XIII), (XIV), (XV) or (XVI): wherein ASM 1 is selected from the group consisting of Formulae (V), (VI), (VII) and (VIII): or wherein ASM 1 is derived from Formula (IX), (X), (XI), (XII), (XIII), (XIV), (XV) or (XVI): wherein R 20 , R 21 , R 22 , R 23 , R 24 , R 25 , R 26 , R 27 , R 28 , R 29 , R 30 , R 31 , R 32 and R 33 are independently hydrogen, -CO 2 H, halogen, -OH, -NHR 4 , -SO 2 H, -R 5 CO, -P(O)(OR 6 )(OH), -N 3 , -CN, alkyl, aryl or alkoxy, with the proviso that at least one substituent is -CO 2 H, halogen, -OH, -NHR 4 , -SO 2 H, -RsCO, -P(O)(OR 6 )(OH), -N 3 or -CN. <EOS>