Photon mosquito repellent and preparation method thereof

A mosquito repellant, photon technology, applied in the field of photon mosquito repellent, nano silk protein emulsion and its preparation, can solve the problems of limited range of action, high power consumption, inconvenient use, etc., and achieve good safety and stability Effect

Active Publication Date: 2013-09-18
JIANGSU NADN SCI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The mosquito repellent effect of the photon mosquito repellent is affected by electric excitation, the range of action is limited, and the power consumption is large, so it is inconvenient to use

Method used

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  • Photon mosquito repellent and preparation method thereof
  • Photon mosquito repellent and preparation method thereof
  • Photon mosquito repellent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Immerse 50g of silk gray cloth in 1500ml of distilled water at a bath ratio of 1:30, and treat it under high temperature and high pressure conditions for 60 minutes; cool and filter to obtain a water-soluble silk protein solution with a concentration of 3g / L, which is a sericin solution; Dissolve 0.1 g of polyvinylpyrrolidone and 0.2 g of polyvinyl alcohol in 50 ml of distilled water in advance, and gradually add them dropwise into the above-mentioned silk protein solution while stirring to prepare a modified silk protein solution.

[0023] Prepare potassium iodide aqueous solution and silver nitrate aqueous solution with a concentration of 0.5mol / L respectively, and gradually add 150ml of potassium iodide aqueous solution and silver nitrate aqueous solution to the modified silk protein solution by double-dropping under the conditions of stirring and a temperature of 70°C. 100ml aqueous solution; a precipitation reaction occurs on the silk protein, and AgI nanoparticles ...

Embodiment 2

[0029] Immerse 50g of silkworm cocoons in 1500ml of distilled water, process them in a high-temperature and high-pressure dyeing machine for 60 minutes, cool, and filter to obtain a water-soluble silk protein sericin solution with a concentration of 3g / L; Then add 0.05g of water-soluble silk fibroin powder to obtain a water-soluble silk protein solution with a concentration of 3.33g / L; 0.15g of polyvinylpyrrolidone and 0.15g of ethylenediaminetetraacetic acid were pre-dissolved in 100ml of distilled water to prepare Form a modifying agent, and gradually add it dropwise into 1500ml of silk protein solution with a concentration of 3.33g / L while stirring to prepare a modified silk protein solution.

[0030] Prepare zinc chloride aqueous solution and silver nitrate aqueous solution with a concentration of 0.7mol / L respectively, and gradually add 150ml zinc chloride dropwise to the modified silk protein solution under the conditions of stirring and temperature of 50°C Aqueous solut...

Embodiment 3

[0032] Dissolve 0.5g water-soluble silk fibroin powder in 150ml distilled water, heat and stir to obtain a water-soluble silk protein solution with a concentration of 3.33g / L; dissolve 0.15g polyvinylpyrrolidone and 0.15g ethylenediaminetetraacetic acid in 100ml Distilled water was gradually added dropwise to the above-mentioned 150 ml silk protein solution with a concentration of 3.33 g / L while stirring to prepare a modified silk protein solution.

[0033] Prepare zinc chloride aqueous solution and silver nitrate aqueous solution with a concentration of 0.7mol / L respectively, and gradually add 150ml of chloride chloride to the above-mentioned modified silk protein solution by double-dropping under the conditions of stirring and a temperature of 50°C. Zinc aqueous solution and 100ml silver nitrate aqueous solution, precipitation reaction occurs on the silk protein, and nano-AgCl particles are generated in situ. After the dropwise addition, they are stirred at a temperature of 5...

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Abstract

The invention discloses a photon mosquito repellent and a preparation method thereof. The mosquito repellent is nano fibroin emulsion, wherein the surface of the fibroin has silver halide nano particles. The preparation method comprises: adding a modifier into the water soluble fibroin solution; gradually dripping metal halide aqueous solution and silver nitrate aqueous solution gradually by using a double phase titration process to form silver halide nano particles on the upper surface of the fibroin in situ to form the nano fibroin emulsion; and aging to obtain the photon mosquito repellent. In the invention, the fibroin is used as a carrier to synthesize a nano material in situ, the nano fibroin emulsion, which has a strong fluorescent characteristic in a 420 to 460 nanometer wave band, is formed by using the synergetic effect of the fibroin and the nano material, the micro morphologic size of the nano particles is uniform, the dispersion stability is high, and the photon mosquito repellent has the characteristic of light stability and can repelling mosquitoes safely, conveniently and quickly without polluting environment.

Description

technical field [0001] The invention relates to a functional nano material, in particular to a nano silk protein emulsion with fluorescent properties and a preparation method thereof, which is used as a photon mosquito repellant. Background technique [0002] For humans, mosquitoes not only suck blood to harass, but also are the vectors of various diseases. Malaria alone, a mosquito-borne disease, kills more than one million people in the world every year. Therefore, mosquitoes have always been the main object of medical insect control research. For a long time. People have tried many methods to fight against vector mosquitoes, and while achieving remarkable results, many problems have also been found. [0003] At present, most mosquito repellent products on the market can be divided into two categories in terms of mosquito repellent means, chemical repellent and physical mosquito repellent. Chemical mosquito repellent Most chemical substances containing DEET achieve mosq...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N63/02A01N59/16A01P17/00
Inventor 郑敏王作山殷骏杨泸
Owner JIANGSU NADN SCI TECH CO LTD
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