A compound, the compound having Formula I or being a salt or solvate of Formula I wherein: each R 1 is independently CO 2 H; R 2 BF 3: is -N(R 3) 2 CH 2 BF 3 wherein each R 3 is independently: methyl; or forms a pyridinium group that is C-substituted with -B - F 3 or N-substituted with - CH 2 B - F 3, and which is optionally substituted with one or more halogens, methyl groups, aryl groups, branched or linear alkyl groups, hydroxyls, thiols, amines, carboxaldehyde, carboxylates, carboxamides, nitriles, monohalomethyl groups, dihalomethyl groups and trihalomethyl groups; or forms: in which R is alkyl or aryl; or in which R is alkyl or aryl; wherein the azole ring is optionally further substituted with one or more halogens, alkyls, carboxaldehyde, carboxylates, carboxamides, nitriles, monohalomethyl groups, dihalomethyl groups and trihalomethyl groups; and L is R 4 R 5 R 6 in which: R 4 is -CH 2 CH 2 - or -CH 2 CH 2 CH 2 -. R 5 is -S-, -NHC -, -C -, -C O- or -OC -; R 6 is (phenyl)CH 2 R 7, (pyridyl)CH 2 R 7, or wherein R 7 is absent or wherein R 8 is a an aliphatic or aromatic hydrophobic side chain of a natural or artificial amino acid, and wherein R 9 is a C 1 -C 30 alkyl or X 1 -X 30 heteroalkyl that is one or more of: branched or linear; acyclic, cyclic or multi-cyclic; saturated or unsaturated; and optionally substituted with one or more of halide, amide, oxo, hydroxyl, thiol, -OPO 3 H 2 and -OSO 3 H; and wherein each X is independently C or a heteroatom selected from N, O, P, S or Se. each R 1 is independently CO 2 H; R 2 BF 3: is -N(R 3) 2 CH 2 BF 3 wherein each R 3 is independently: methyl; or forms a pyridinium group that is C-substituted with -B - F 3 or N-substituted with - CH 2 B - F 3, and which is optionally substituted with one or more halogens, methyl groups, aryl groups, branched or linear alkyl groups, hydroxyls, thiols, amines, carboxaldehyde, carboxylates, carboxamides, nitriles, monohalomethyl groups, dihalomethyl groups and trihalomethyl groups; or forms: in which R is alkyl or aryl; or in which R is alkyl or aryl; wherein the azole ring is optionally further substituted with one or more halogens, alkyls, carboxaldehyde, carboxylates, carboxamides, nitriles, monohalomethyl groups, dihalomethyl groups and trihalomethyl groups; and is -N(R 3) 2 CH 2 BF 3 wherein each R 3 is independently: methyl; or forms a pyridinium group that is C-substituted with -B - F 3 or N-substituted with - CH 2 B - F 3, and which is optionally substituted with one or more halogens, methyl groups, aryl groups, branched or linear alkyl groups, hydroxyls, thiols, amines, carboxaldehyde, carboxylates, carboxamides, nitriles, monohalomethyl groups, dihalomethyl groups and trihalomethyl groups; or forms: in which R is alkyl or aryl; or in which R is alkyl or aryl; wherein the azole ring is optionally further substituted with one or more halogens, alkyls, carboxaldehyde, carboxylates, carboxamides, nitriles, monohalomethyl groups, dihalomethyl groups and trihalomethyl groups; and L is R 4 R 5 R 6 in which: R 4 is -CH 2 CH 2 - or -CH 2 CH 2 CH 2 -. R 5 is -S-, -NHC -, -C -, -C O- or -OC -; R 6 is (phenyl)CH 2 R 7, (pyridyl)CH 2 R 7, or wherein R 7 is absent or wherein R 8 is a an aliphatic or aromatic hydrophobic side chain of a natural or artificial amino acid, and wherein R 9 is a C 1 -C 30 alkyl or X 1 -X 30 heteroalkyl that is one or more of: branched or linear; acyclic, cyclic or multi-cyclic; saturated or unsaturated; and optionally substituted with one or more of halide, amide, oxo, hydroxyl, thiol, -OPO 3 H 2 and -OSO 3 H; and wherein each X is independently C or a heteroatom selected from N, O, P, S or Se. R 4 is -CH 2 CH 2 - or -CH 2 CH 2 CH 2 -. R 5 is -S-, -NHC -, -C -, -C O- or -OC -; R 6 is (phenyl)CH 2 R 7, (pyridyl)CH 2 R 7, or wherein R 7 is absent or wherein R 8 is a an aliphatic or aromatic hydrophobic side chain of a natural or artificial amino acid, and wherein R 9 is a C 1 -C 30 alkyl or X 1 -X 30 heteroalkyl that is one or more of: branched or linear; acyclic, cyclic or multi-cyclic; saturated or unsaturated; and optionally substituted with one or more of halide, amide, oxo, hydroxyl, thiol, -OPO 3 H 2 and -OSO 3 H; and wherein each X is independently C or a heteroatom selected from N, O, P, S or Se.