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Protein coated silver sulfide nano line preparation method

A protein and nanowire technology, applied in measuring devices, material analysis through optical means, instruments, etc., can solve the problems of limitations in the preparation of protein coating systems, the complexity of DC electrodeposition, and the high temperature of thermal evaporation methods, and achieve mild conditions , The technical operation steps are simple, the effect of low reaction temperature

Inactive Publication Date: 2012-11-14
HENAN NORMAL UNIV
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  • Application Information

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Problems solved by technology

[0003] At present, there are many methods for preparing nanowires, which can be roughly divided into physical vapor deposition, direct current electrodeposition and thermal evaporation, etc., each of which has its own characteristics and suitable systems. High, the temperature of the thermal evaporation method is high, the DC electrodeposition method is more complicated, and has certain limitations for the preparation of the protein coating system

Method used

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  • Protein coated silver sulfide nano line preparation method
  • Protein coated silver sulfide nano line preparation method
  • Protein coated silver sulfide nano line preparation method

Examples

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Embodiment Construction

[0026] Implementation example 1:

[0027] (1) bovine serum albumin solution and silver nitrate solution were reacted for about 20 minutes under electromagnetic stirring to obtain a chelating solution;

[0028] (2) above-mentioned chelating solution and thioacetamide solution are poured into respectively in two container tanks separated by porous aluminum oxide film;

[0029] (3) Diffusion at room temperature for 12 hours;

[0030] (4) taking out the porous aluminum oxide film and dissolving the film with a concentration of 2M sodium hydroxide;

[0031] (5) high-speed centrifugation, double distilled water cleaning, so three times, finally room temperature vacuum drying sample, transmission electron microscope analysis shows, finds that reaction product is the granular silver sulfide nano-particle that is wrapped in the protein matrix, has not yet combined in this implementation example into a line (such as figure 1 );

[0032] Implementation example 2: experimental steps (...

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Abstract

The method features the following: the argentic sulfide nanometer lines covered by the protein are made of bovine serum albumin (BSA) and thioacetamide (TAA). After the chelation between the metal ion and the biomacromolecule, the chelate of silver ion is formed; said chelate and TAA releases sulfur ions which are nucleated in the multi-hole alumina shuttering so as to gradually form the nanometer lines; after separation and cleaning, the argentic sulfide nanometer lines covered by the protein can be obtained.

Description

technical field [0001] The invention relates to the technical field of preparation of functional nanometer materials, that is, a method for preparing silver sulfide nanowires coated with biological macromolecule bovine serum albumin is designed, and nanomaterials with a structure similar to "cables" are prepared. Background technique [0002] Silver sulfide, copper sulfide, cadmium sulfide, cadmium selenide, and cadmium telluride are not only good semiconductor materials, but also have optical properties such as visible light absorption, main infrared light transmission, and photoluminescence. Especially when its size reaches nanoscale, its photophysical and photochemical properties have been greatly improved, and it has excellent spectral characteristics and photochemical stability. The study of biosurface-modified semiconductor nanomaterials is of great significance to the development of new luminescent materials and novel fluorescent probes. [0003] At present, there ar...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/00
Inventor 杨林刘山虎邢瑞敏张保芳
Owner HENAN NORMAL UNIV