Chemical sensors based on carbon nanotubes functionalised by conjugated polymers for analysis in aqueous medium
AssigneesEcole Polytechnique, Centre National De La Recherche Scientifique, Institut Francais des Sciences et Technologies des Transports, de l'Amenagement et des Reseaux—IFSTTAR
InventorsGaël Zucchi, Bérengère Lebental, Loic Loisel, Sasikumar Ramachandran, Alfredo Flores Gutiérrez, Xinyang Wang, Mallesham Godumala, Laurence Bodelot
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Abstract
Disclosed are conjugated polymers bearing chemical probes and the use thereof for the preparation of chemical sensors based on carbon nanotubes allowing the selective detection of analytes in water.
Claims19
A conjugated polymer comprising monomer units A chosen from the monomer units of formulas:
- where X denotes a carbon, silicon or germanium atom,
- R1 and R2, identical or different when they are present in the same monomer unit, are monovalent groups containing at least one group T chosen from the groups oxime, iminodiacetic acid or one of the salts thereof, a macrocyclic group including from 9 to 36 atoms of which at least 3 heteroatoms chosen from oxygen, nitrogen and the combinations thereof, or a group of formula T1:
- where W denotes a sulphur or oxygen atom, RU1 and RU2 denote independently a hydrogen atom, an optionally substituted alkyl group or an aryl group,
- denotes the attachment point of the monomer unit to the polymer chain, the carbon atoms of the monomer units A being optionally substituted, and
- the groups R1 and/or R2 are groups of formula -L-T, where L denotes a divalent group.
A carbon nanotubes functionalised by at least one conjugated polymer comprising monomer units A chosen from the monomer units of formulas:
- where X denotes a carbon, silicon or germanium atom,
- R1 and R2, identical or different when they are present in the same monomer unit, are monovalent groups containing at least one group T chosen from the groups oxime, iminodiacetic acid or one of the salts thereof, a polydentate Lewis base including at least two coordinating nitrogen and/or oxygen atoms, a macrocyclic group including from 9 to 36 atoms of which at least 3 heteroatoms chosen from oxygen, nitrogen and the combinations thereof, or a group of formula T1:
- where W denotes a sulphur or oxygen atom, RU1 and RU2 denote independently a hydrogen atom, an optionally substituted alkyl group or an aryl group,
- denotes the attachment point of the monomer unit to the polymer chain, the carbon atoms of the monomer units A being optionally substituted, and
- the groups R1 and/or R2 are groups of formula -L-T, where L denotes a divalent group.
Dependencies are inferred from the claim text.