9 results about "Indium tin oxide electrodes" patented technology

The invention belongs to the technical field of electrochemical detection sensors, and particularly relates to a photoelectrochemical sensor for dopamine concentration detection and a preparation method and application thereof. The photoelectrochemical sensor comprises a working electrode, a counter electrode and a reference electrode, and specifically, the working electrode, the counter electrode and the reference electrode are sequentially connected to an electrochemical workstation to obtain the photoelectrochemical sensor. The working electrode is an indium tin oxide electrode; a Bi4O5Br2 / g-C3N4 / Au composite material is deposited on the surface of the indium tin oxide electrode. The sensor provided by the invention is excellent in detection performance, has the advantages of simple preparation process, low cost, good environmental stability and the like, provides a reliable new method for clinical dopamine detection, and has an important application prospect in early diagnosis of neurodegenerative diseases such as Parkinson's disease and the like.

According to the light-induced photoelectrochemical integrated device provided by the invention, electrochemical luminescence and PEC signal simultaneous output are realized in a single sensing system for the first time, and dual-mode simultaneous quantification of markers in serum is realized. The preparation method comprises the following steps: preparing and screening an ECL / PEC material pair with matched wavelength: luminol-Au / Bi2WO6, and successively assembling Bi2WO6 and luminol-Au labeled probes on an indium tin oxide electrode by utilizing a layer-by-layer self-assembly mode; when a voltage is applied, the luminol-Au emits a strong ECL signal and triggers the Bi2WO6 to generate an obvious light current. A marker miRNA-21 is taken as a model, recognition molecules with a hairpin structure are introduced into a system, and sensitive and accurate dual-mode analysis of the miRNA-21 is realized by adopting an enzyme-assisted amplification method. The detection method provided by the invention not only can realize ECL-PEC dual-mode simultaneous detection of the target object, but also has relatively high universality, and a new example can be provided for precise biological analysis by replacing and recognizing molecules through the sensor.

The application provides a low driving voltage fast response intelligent dimming film, and belongs to the technical field of liquid crystal dimming films.The ferroelectric nematic liquid crystal DIO, liquid crystal monomer RM257, non-liquid crystal monomer EHA and photoinitiator IRG 651 are uniformly mixed in a certain proportion, then are poured into a liquid crystal cell with an indium tin oxide electrode at a certain temperature, wires are connected to the electrode and an alternating electric field with a certain intensity is applied, at the same time, ultraviolet irradiation is adopted to polymerize to complete curing, and thus an intelligent film based on polymer-restrained ferroelectric nematic liquid crystal with super-low driving voltage and fast response speed is obtained.The intelligent film has simple preparation, high yield, low driving voltage and stable performance, and can greatly reduce the energy consumption of building materials and improve the use safety.

The application provides a flexible ZnO / CsPbBr3 QD photoelectric detector for monitoring the light intensity received by plants, and belongs to the technical field of plant light intensity monitoring. The flexible ZnO / CsPbBr3 QD photoelectric detector is prepared by laser etching and processing indium tin oxide electrode material on a flexible PET substrate to form a flexible ITO / PET substrate, growing ZnO nanorods on the flexible ITO / PET substrate, and then spin coating and attaching CsPbBr3 QD dispersion liquid on the ZnO nanorods. The flexible photoelectric detector is attached to the leaves of plants as a flexible device, the change rule of the light intensity and the photocurrent is determined by the change of the photocurrent of the photoelectric detector with time, and the light intensity received by plants is continuously monitored. The flexible photoelectric detector has good flexibility, mechanical durability and stability, better portability and low manufacturing cost as a flexible device.

The invention discloses a ruthenium-based large-size low-voltage fast-response intelligent window and a preparation method and application thereof, and belongs to the technical field of intelligent windows. The ruthenium-modified indium tin oxide electrode is used as a working electrode, the inert metal ruthenium plating layer has an electrochemical catalysis effect and can be used as a seed layer for reversible metal electrodeposition, and metal grains on the surface are rapidly nucleated and grow during electrochemical deposition (coloring), so that the device has a relatively high deposition speed, and the reaction time is shortened. Meanwhile, Ru effectively reduces the deposition potential on the surface of the electrode, so that even if only lower voltage is applied, a metal coating with small grain size, large quantity and uniform and compact distribution can be obtained on the surface of the electrode, and the transmissivity of the device is effectively reduced, so that the voltage drop limitation is overcome, and the reliability of the device is improved. The device can have a high extinction coefficient through the metal coating with the low thickness, and the problems that a traditional large-size RME intelligent window is uneven in coloring and slow in response time are solved.

The biosensor for simultaneously detecting cardiac troponin I and interleukin 6 comprises an indium tin oxide electrode, and two sensing areas with independent functions, namely an area I and an area II, are integrated on a single indium tin oxide electrode; the area I is modified with a cardiac troponin I binding aptamer, rhodamine B and a cadmium sulfide and bismuth tungstate composite material, and is used for detecting the cardiac troponin I aptamer through photoelectrochemical and colorimetric-fluorescence double signals; the region II is modified with an interleukin-6 binding aptamer and methylene blue silicon dioxide and is used for detecting interleukin-6 through photoelectrochemical and electrochemical double signals. The sensor and the detection method are good in accuracy and reliability.

The invention relates to the technical field of LED lamp beads, in particular to an LED lamp bead, a preparation method of the LED lamp bead and an LED lamp strip, and the method comprises the following steps: depositing an indium tin oxide electrode by adopting a high-purity aluminum oxide substrate and photoetching a microcircuit, flip-chip welding a Micro-LED chip, filling a quantum dot solution through a micro-channel and spin-coating ZIF-8 to form a 500nm porous protective layer, and performing heat treatment to obtain the LED lamp bead. The method comprises the following steps of: doping nano ZrO2, fluorine-modified polyimide microspheres and a SiO2-coated TiO2 core-shell light diffusant into a thiosiloxane adhesive serving as a matrix, carrying out gradient centrifugation and UV / thermal dual-curing packaging, stamping a PCT / LCP alloy stepped bowl cup and sputtering an Ag reflecting layer, filling an aluminum radiator with aluminum nitride adhesive to construct dual-channel heat dissipation, and brazing a linear driver, thereby obtaining the PCT / LCP alloy / Ag reflecting layer / PCT / LCP alloy / Ag reflecting layer / PCT / LCP alloy / Ag reflecting layer / PCT / LCP alloy / Ag reflecting layer / and carrying out 3D direct writing and coating with a thiosiloxane adhesive, and printing the super lens array. Therefore, the problems that an LED lamp bead is poor in heat dissipation, low in light emitting efficiency, uneven in light emitting, short in service life and the like are solved.

This invention discloses a manganese oxide / indium tin oxide composite material, its preparation method, and its application. The preparation method includes: 1) subjecting carbon fibers to high-temperature oxidation treatment; 2) placing the oxidized carbon fibers in a potassium permanganate solution and performing a hydrothermal reaction at high temperature to grow manganese dioxide nanosheets to obtain an electrode sheet; 3) placing the electrode sheet in a mixed solution of ethanol and ethylene glycol containing manganese acetate and performing a hydrothermal reaction to grow manganese dioxide / manganese tetroxide nanospheres; 4) subjecting the manganese dioxide / manganese tetroxide nanosphere electrode obtained in step 3) to charge-discharge cycles in an electrolyte containing indium tin oxide, and after the cycles are completed, repeatedly washing with deionized water and drying to obtain the manganese dioxide / indium tin oxide electrode material. The manganese oxide / indium tin oxide composite material prepared by this invention has nanoparticles on its surface and exhibits a larger specific capacitance compared to other manganese oxide nanomaterials or composite materials.

Provided is a method for continuous detection of a miRNA by a metal-organic framework (MOF)-based nanozyme, including the following steps: step 1, conducting a duplex-specific nuclease (DSN)-assisted signal amplification strategy; and step 2, conducting the flow analysis on a target using a flow injection-batch method, and recording a differential pulse voltammetry (DPV) response of a biosensor in a batch mode; and step 3, in the flow mode, conducting competitive elution on a MOF / indium tin oxide (ITO) electrode with a complementary DNA (cDNA) as a mobile phase. In the present invention, a two-dimensional MOF-based nanozyme is simply synthesized by an ultrasonic method and then applied to a homogeneous electrochemical biosensor without a complicated electrode modification process, showing a continuous detection function, a high selectivity and a desirable sensitivity.