44results about How to "Reduce signal background" patented technology

The invention discloses a fabrication method of a cobalt-nickel oxide-based nitrofuran antibiotics sensor, and belongs to the technical field of novel nanometer functional material and biological sensing analysis. A cobalt-nickel thermometal oxide nanosheet array is fabricated on a disposable throwable electrode, a polydopamine thin film and a molecular imprinting polymer are directly and sequentially fabricated on the cobalt-nickel thermometal oxide nanosheet array by an in-situ growth method according to large specific area, and the molecular imprinting polymer is coated with luminal in an in-situ way and takes nitrofuran antibiotics as a template molecule. After the template molecule is eluted, the original position of the template molecule is changed to holes, and the molecular imprinting molecule of the template molecule is eluted. Therefore, the cobalt-nickel oxide-based nitrofuran antibiotics sensor is fabricated and completed.

The invention discloses a preparation method of a dimeform sensor based on a cobalt-based nitride nano-array. It belongs to the field of new nano functional material and biosensing analysis technology. In the present invention, a cobalt-nickel double-metal nitride nanosheet array is firstly prepared on a disposable disposable electrode, and by using its large specific surface area and high adsorption activity to amino groups, as well as the amino functional group of polydopamine, an in-situ growth method is adopted. Polydopamine films containing electron mediators and molecularly imprinted polymers with dimeform as template molecules were directly and successively prepared on the cobalt-nickel double metal nitride nanosheet arrays. After the template molecules were eluted, the original template molecules The position of the hole becomes a hole, that is, the molecularly imprinted polymer that elutes the template molecule. Thus, a cobalt-based nitride nanoarray-based sensor for dimeform is prepared.

The invention discloses a preparation method of electrochemical sensor for sulfonamide molecule, and belongs to the technical field of new nano functional materials and biosensor. The method firstly prepares a nickel hydroxide nanosheet array on a disposable throwable electrode, and uses the large specific surface area and a high activity hydroxyl functional group and an amino functional group ofpolydopamine to sequentially prepare a polydopamine film containing an electron mediator and a molecularly imprinted polymer taking a sulfonamide molecule as a template molecule directly on the nickelhydroxide nanosheet array by adopting an in-situ growth method, after eluting the template molecule, the position of the original template molecule becomes a hole, that is, the molecularly imprintedpolymer eluting the template molecule, thus, an electrochemical sensor for the sulfonamide molecule is prepared.