Abstract: Organic electrodes produced from electroactive polymers bonded to anti-ligands intended to interact specifically with ligands.

Abstract: The invention relates to bi-functionalised metallocenes of general formula (I) where Me=a transition metal, preferably chosen from Fe, Ru and Os, Y and Z, when identical are selected from —(CH2)n—O—, (CH2)—O—[(CH2)2—O]P— and —(CH2)q—CONH—(CH2)r—O—, or Y=—(CH2)S—NH— and Z=—(CH2)t—COO—, n=a whole number from 3 to 6 inclusive, p=a whole number from 1 to 4 inclusive, q=a whole number from 0 to 2 inclusive, r=a whole number from 0 to 2 inclusive, s=a whole number from 2 to 5 inclusive, t=a whole number from 3 to 6 inclusive, R and R?=H atoms or are protective groups used in oligonucleotide and peptide synthesis, where at least one of R or R? is protective group used in oligonucleotide and peptide synthesis and R and R? are as defined below: (i) when Z and Y are selected from (CH2)n—O—, —(CH2)—O—[(CH2)2—O]p— and —(CH2)q—CONH—(CH2)r—O—, then R and R? are protective groups used in oligonucleotide synthesis and R is a group which can leave a free OH group after deprotection, preferably a photolabile group such as mono

Abstract: The present invention essentially relates to an electrically-controlled valve formed by electroactive polymers and more precisely an electrically controlled fluidic valve separating two volume spaces, which includes: at least one microporous membrane, the surface of which is at least partly covered with at least one electroactive polymer essentially placed within the pores of said microporous membrane, so that, when said polymer is in a defined oxidation-reduction state, it blocks off said pores; and an electrical supply intended to allow said valve to switch from the closed state to the open state, and vice versa, by changing the oxidation-reduction state of the electroactive polymer. The invention also relates to a microfluidic device including such a valve.

Abstract: This invention concerns a valve (2), with at least one channel (3) running through it, allowing a fluid (F3) to be directed by transfer means within a device (1), the device (1) featuring at least one face (4), possibly flat, the valve (2) consisting of a film (7 or 16), flexible and/or which can be deformed, fixed on all or part of the face (4) of said device (1), and a film actuator (7), which enables said valve (2) to be activated or deactivated, this actuator consisting of an electrical power source. It also consists of a test sample card (1) equipped with at least one valve (2), and a process for actuating the valve (2), as described above. The invention is particularly applicable in the field of diagnosis.

Abstract: The invention concerns an electroactive probe, formed with an electroactive homopolymer or copolymer polymer of at least two monomers, functionalized by chelating agent complexed with a metal ion, and anti-ligand capable of reacting specifically with a ligand, a method for preparing such a probe and a method of detecting a ligand in a biological sample using same.

Abstract: The invention relates to bi-functionalised metallocenes of general formula (I) where Me=a transition metal, preferably chosen from Fe, Ru and Os, Y and Z, when identical are selected from —(CH2)n—O—, (CH2)—O—[(CH2)2—O]P— and —(CH2)q—CONH—(CH2)r—O—, or Y=—(CH2)S—NH— and Z=—(CH2)t—COO—, n=a whole number from 3 to 6 inclusive, p=a whole number from 1 to 4 inclusive, q=a whole number from 0 to 2 inclusive, r=a whole number from 0 to 2 inclusive, s=a whole number from 2 to 5 inclusive, t=a whole number from 3 to 6 inclusive, R and R?=H atoms or are protective groups used in oligonucleotide and peptide synthesis, where at least one of R or R? is protective group used in oligonucleotide and peptide synthesis and R and R? are as defined below: (i) when Z and Y are selected from (CH2)n—O—, —(CH2)—O—[(CH2)2—O]p— and —(CH2)q—CONH—(CH2)r—O—, then R and R? are protective groups used in oligonucleotide synthesis and R is a group which can leave a free OH group after deprotection, preferably a photolabile group such as mono

Abstract: The invention concerns a method for detection, identification and assay of a potentially toxic metal ion in a sample suspected of containing a plurality of metal ions. The invention is characterized in that it consists in using a probe characterized in that it comprises an electroactive homopolymer or copolymer polymer of at least two monomers, functionalized by a chelating agent, and in quantifying a potential difference characteristic of the redox potential of the cation(s) present in the sample.

Abstract: A coated metal reinforcement element for polymeric or elastomeric materials comprises a coating of: a polymer or prepolymer compatible with and co-polymerizable, co-vulcanizable or crosslinkable with said polymeric or elastomeric material to be reinforced, and bearing functional groups; either covalently bonding to the metal surface of said reinforcement element; or forming covalent bonds with the outward directed first functional groups of a mono-or multimolecular layer of a bifunctional adhesion promotor intercalated between said metal by its second functional groups. A method for the coating includes a one step and a two step procedure.

Abstract: A method for detecting at a solid support (3) complexing or hybridization between at least two basic molecules (8 and 9), one of the molecules being initially fixed on support (3), called identifying molecule (8), and the other being in solution in liquid sample (2), called target molecule (9). A solid support for detecting complexing or hybridization between at least two different molecules, a biochip incorporating the support and use of the biochip in a diagnostic test are also disclosed. The method includes: using chemical or biological element (10), specifically bound to the formed complex or hybrid; exciting the complex or the hybrid, so that chemical or biological element (10) releases light signal (11); receiving and transforming light signal (11) into chemical signal (15) at support (3), and detecting electric signal (12) derived from chemical signal (15).

Abstract: In a composite of vulcanizable rubber or rubber-like composition with one or more metal reinforcement elements embedded therein, the metal reinforcement element is coated with a polymer or non-cured rubber composition compatible with and co-polymerizable, co-vulcanizable or crosslinkable with said vulcanizable ruber composition to be reinforced, and additionally bearing functional groups either covalently bonding to the metal surface of said reinforcement element or forming covalent bonds with the outward directed first functional groups of a mono- or multimolecular layer of a bifunctional adhesion promoter intercalated between said metal and said coating and bound to said metal by its second functional groups. A cured rubber or rubber-like product, for instance a pneumatic tire, is obtained by vulcanization of such a composite.

Abstract: The invention concerns an electroactive complex, consisting of an electroactive homopolymer or copolymer polymer of at least two monomers, and anti-ligand and a ligand having specifically interacted with said antiligand, and further at least an electron donor group, and an electroactive probe, consisting of said polymer said antiligand capable of interacting specifically with said ligand and at least an electron donor group.

Abstract: This invention concerns a valve (2), with at least one channel (3) running through it, allowing a fluid (F3) to be directed by transfer means within a device (1), the device (1) featuring at least one face (4), possibly flat, the valve (2) consisting of a film (7 or 16), flexible and/or which can be deformed, fixed on all or part of the face (4) of said device (1), and a film actuator (7), which enables said valve (2) to be activated or deactivated, this actuator consisting of an electrical power source.

Abstract: In a composite of vulcanizable rubber or rubber-like composition with one or more metal reinforcement elements embedded therein, the metal reinforcement element is coated with a polymer or non-cured rubber composition compatible with and co-polymerizable, co-vulcanizable or crosslinkable with said vulcanizable ruber composition to be reinforced, and additionally bearing functional groups either covalently bonding to the metal surface of said reinforcement element or forming covalent bonds with the outward directed first functional groups of a mono- or multimolecular layer of a bifunctional adhesion promoter intercalated between said metal and said coating and bound to said metal by its second functional groups. A cured rubber or rubber-like product, for instance a pneumatic tire, is obtained by vulcanization of such a composite.

Abstract: A coated metal reinforcement element for polymeric or elastomeric materials comprises a coating of: a polymer or prepolymer compatible with and co-polymerizable, co-vulcanizable or crosslinkable with said polymeric or elastomeric material to be reinforced, and bearing functional groups; either covalently bonding to the metal surface of said reinforcement element; or forming covalent bonds with the outward directed first functional groups of a mono-or multimolecular layer of a bifunctional adhesion promotor intercalated between said metal by its second functional groups. A method for the coating includes a one step and a two step procedure.

Abstract: There are electrically conductive, electroactive functionalized conjugated polymers having formula (I): These electrically conducive, electroactive conjugated polymers may be covalently bonded to a first biological molecule or antiligand. Polymers bonded to a first biological molecule or antiligand may be used to form an electrode and may be used to assay for, detect and/or extract a second biological molecule or ligand.

Abstract: There are electrically conductive, electroactive functionalized conjugated polymers having formula (I): ##STR1## These electrically conducive, electroactive conjugated polymers may be covalently bonded to a first biological molecule or antiligand. Polymers bonded to a first biological molecule or antiligand may be used to form an electrode and may be used to assay for, detect and/or extract a second biological molecule or ligand.

Abstract: The invention relates to an adhesive substance for improved adhesion between a vulcanizable polymer and a metallic reinforcing carrier.The use of an adhesive substance with the following structure is proposed in order to produce an improved adhesion between rubber and a metallic reinforcing carrier:X--(R).sub.n --(Ar).sub.i --(R).sub.m --Y,whereinX: --SH; --Si(Cl).sub.3 ; --Si(OR.sub.1).sub.3 ; --COOHwith R.sub.1 : alkyl remainder (branched and unbranched), particularly --CH.sub.3 ; --C.sub.2 H.sub.5 or --C.sub.3 H.sub.7 ;R: --CH.sub.2 --; --CF.sub.2 --; wherein 0.ltoreq.n,m.ltoreq.12, or--CH.sub.2 --CO--NH--CH.sub.2 --; --CF.sub.2 --CO--NH--CF.sub.2 --; --CH.sub.2 --CO--NH--CF.sub.2 --; --CF.sub.2 --CO--NH--CH.sub.2 --, wherein 0.ltoreq.n,m.ltoreq.4Ar: aromatic and/or heteroaromatic system, comprised of one or several of the following molecules:benzene, phenylene, aniline, thiophene, pyrrole, furane,with or without substituentswherein 0.ltoreq.i.ltoreq.

Abstract: A thin-layer field-effect transistor (TFT) with an MIS structure includes a thin semiconductor layer between a source and a drain. The thin semiconductor layer is in contact with one surface of a thin layer made of insulating material, and in contact by its other surface with a conducting grid. The semiconductor is composed of at least one polyconjugated organic compound with a specific molecular weight. The polyconjugated organic compound or polyconjugated organic compounds contain at least 8 conjugated bonds and have a molecular weight of no greater than approximately 2,000. The thin layer of insulating material is made of an insulating organic polymer having a dielectric constant of at least equal to 5. The transistor is useful as a switching or amplifying element.

Abstract: The present invention provides a preparation process of a polymer which is characterized by reacting a specified metallocene which metal is a transition element of the group IV to group VIII in the periodic table, with an organic alkali metal compound and successively reacting with the compound represented by the formula Y--(R.sup.11).sub.m --X wherein R.sup.11 is a vinylene, phenylene, thienylene, and the like, X and Y are a hydrogen atom or halogen atom, and m is an integer of one or more, to obtain the polymer represented by the following formula: ##STR1## wherein n is an integer of 2 or more; further provides an organo-ferromagnetic material obtained by oxidizing said polymer, and a novel conjugated polymer containing ferrocene units.

Abstract: Substituted thiophenes of general formula: ##STR1## in which: R represents hydrogen atom or an aliphatic group containing from 1 to 4 carbon atoms,X and Z may be identical or different and represent a hydrogen atom or a fluorine atom,Y represents an at least partially fluorinated aliphatic or aromatic group,m represents an integer equal to or greater than 1, andn represents an integer such that 0.ltoreq.n.ltoreq.12.The invention also relates to the electrically conducting polymers containing recurring units derived from monomers chosen from the substituted thiophenes.