Double recognition dopamine imprinting electrochemical sensor and preparation method and application thereof

A dopamine and electrochemical technology, which is applied in the field of dual-recognition dopamine imprinted electrochemical sensors and its preparation, can solve the problems of inaccurate imprinting sites, exposed monomer functional groups on the surface of polymer membranes, and inaccurate specific recognition.
CN104020195AInactive Publication Date: 2014-09-03ANHUI NORMAL UNIV
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
ANHUI NORMAL UNIV
Publication Date
2014-09-03
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention discloses a double recognition dopamine imprinting electrochemical sensor and a preparation method and application thereof. The method comprises the following steps: (1) conducting contact reaction on 3-amino boronic acid, 2,5-dimethoxy furan and acetic acid to prepare functional monomers; (2) in the presence of a buffer solution, mixing the functional monomers and dopamine to form a polymerization liquid, placing a glassy carbon electrode in the polymerization liquid, and conducting scanning preparation of a polymer film modified electrode in the polymerization liquid in accordance with the a cyclic voltammetry; and (3) placing the polymer film modified electrode in an acidic solution for electrochemical elution, so as to prepare the double recognition dopamine imprinting electrochemical sensor. The electrochemical sensor provided by the invention has excellent specificity recognition ability and anti-interference ability for the detection of dopamine.
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Description

technical field

[0001] The invention relates to the technical fields of electrochemical sensors and molecular imprinting, in particular to a double-recognition dopamine imprinting electrochemical sensor and its preparation method and application. Background technique

[0002] In recent years, molecular imprinting technology has developed rapidly, especially molecularly imprinted polymers (MIPs) (referring to polymers with specific selection and recognition for target molecules (also known as template molecules or imprinted molecules)) have a high level in the field of molecular recognition. application value. This technology usually constructs cavities complementary to the molecular size, three-dimensional structure and functional groups of the target molecule inside the polymer, so as to realize the purpose of recognition and separation of the target molecule. Due to the excellent ability of MIPs to selectively recognize molecules, it has gradually replaced enzymes and ant...

Claims

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