Carbon quantum dot-nanowire array-based cardiomyocyte signal molecule sensor and preparation method thereof

A nanowire array and carbon quantum dot technology, applied in the direction of material electrochemical variables, can solve the problems of severe tissue damage and weak penetration ability, and achieve good stability, good application prospects, and simple manufacturing process.

Inactive Publication Date: 2014-10-08
FUDAN UNIV
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However, most of them still use common fluorescent dyes as signal reporting groups, and the excitation and emission wavelengths are in the ultr...

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  • Carbon quantum dot-nanowire array-based cardiomyocyte signal molecule sensor and preparation method thereof
  • Carbon quantum dot-nanowire array-based cardiomyocyte signal molecule sensor and preparation method thereof
  • Carbon quantum dot-nanowire array-based cardiomyocyte signal molecule sensor and preparation method thereof

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Embodiment Construction

[0027] Below, the present invention will be further described by the following examples, which will help to understand the present invention, but do not limit the content of the present invention.

[0028] In a hydrothermal system, using tetra-n-butyl titanate as the titanium source, water as the solvent, tin tetrachloride as the tin source, and concentrated hydrochloric acid as the acid source, titanium dioxide nanoparticles were grown on fluorine-containing tin oxide (FTO) conductive glass substrates. line array. Then synthesize nitrogen-containing carbon dots in one step by microwave method, citric acid is the carbon source, and melamine in different proportions is the nitrogen source. ) as the coupling agent and functionalization reagent, silane-functionalized nitrogen-doped carbon dots (N-CDots) were obtained in situ by a one-step method. Then put the titanium dioxide nanowires treated with concentrated sulfuric acid in the ethanol solution of N-CDot, add concentrated am...

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Abstract

The invention belongs to the technical field of photoelectrochemical sensors, and particularly relates to a carbon quantum dot-nanowire array-based cardiomyocyte signal molecule sensor based on sunlight drive and a preparation method thereof. The preparation method comprises the following steps: under a hydrothermal system, growing a titanium dioxide nanowire array on a conductive glass substrate; obtaining silane-functionalized nitrogen-doped carbon dots (N-CDots) at one step in situ through using a microwave method; then placing titanium dioxide nanowires processed by concentrated sulfuric acid into an N-CDot ethanol solution, adding stronger ammonia water, standing and reacting, and defining as N-CDot-TiO2. The photoelectric current of the N-CDot-TiO2 is improved by almost two times compared with that of pure TiO2, and the prepared photoelectric current on-off sensor can be used for dynamically detecting the content of H2S star molecules of cardiomyocytes in real time in situ. The carbon quantum dot-nanowire array-based cardiomyocyte signal molecule sensor is smart in design and wide in the source of raw materials, the preparation method is simple, environment-friendly, low in price, fast to response, wide in linear range, high in selectivity, and beneficial to popularization and application.

Description

technical field [0001] The invention belongs to the technical field of photoelectrochemical sensors, and in particular relates to a solar-driven carbon quantum dot-nano wire array signal molecular sensor applied to cardiomyocytes and a preparation method thereof. Background technique [0002] In recent years, the energy crisis and environmental pollution problems that mankind is currently facing have become increasingly prominent. The development of society requires the development of efficient, pollution-free clean energy. The energy that supports human survival and development is changing from oil, coal, etc. Consumption energy is shifting to clean and renewable energy. Photoelectrochemical technology has become an ideal environmental pollution control technology and clean energy production technology because of its unique properties such as deep reaction at room temperature and direct use of solar energy as a light source to drive the reaction. Among them, semiconductor ...

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Application Information

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IPC IPC(8): G01N27/26G01N27/30
Inventor 郑耿锋唐静孔彪王永成
Owner FUDAN UNIV
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