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SF-embedded termite drug and preparation method and application thereof

A technology of silk fibroin and medicine, which is applied in the field of silk fibroin-embedded termite medicine and its preparation, can solve the problems of loss of medicine efficacy, air and soil environmental pollution, and expansion of pollution, and achieve enhanced medicine efficacy and improved poison killing Action, the effect of increasing the efficacy of the drug

Active Publication Date: 2013-10-09
SOUTH CHINA NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This will cause serious pollution to the air and soil environment
In addition, the effect of rainwater introduces the drug into the groundwater environment, expanding the pollution and causing the loss of drug efficacy, which is also one of the reasons why the termite drug cannot exert its effect for a long time.

Method used

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  • SF-embedded termite drug and preparation method and application thereof
  • SF-embedded termite drug and preparation method and application thereof
  • SF-embedded termite drug and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Take silk fibroin and N-succinimide with a mass ratio of 1:100, add the two raw material reagents into 1-fluoro-2,4-dinitrobenzene and PBS solution to form a mixed solution, shake evenly, Stir the reaction on a magnetic stirrer under ice bath conditions to form photoactive silk fibroin. Prepare clean wooden blocks, lay them flat, drop in the photoactive silk fibroin solution, add termite medicine, and then spread a layer of photoactive silk fibroin solution on top, and freeze-dry them in a -4°C refrigerator. After drying, the material Ultraviolet light was irradiated for 15 minutes, so that the embedded drug was grafted on the wood block.

Embodiment 2

[0035] Example 2 Monitoring of photoactive silk fibroin synthesis effect

[0036]In order to confirm that silk fibroin reacts with N-succinimide and produces silk fibroin with active groups, infrared spectroscopy was used to detect the product. The infrared spectrum is closely related to the structure of the molecule. The position and structure of different functional groups in the molecule have different absorption values ​​for the infrared spectrum. The bond length and bond angle of the molecule can be determined by using the infrared spectrum method, and the three-dimensional configuration of the molecule can be inferred from this. It is an effective means to study and characterize the molecular structure. After the silk fibroin is reacted to produce photoactive silk fibroin, its molecular group will inevitably change, and the synthesis of silk fibroin can be verified from the infrared spectrum. Since silk fibroin contains a large number of amino groups (peak value: about ...

Embodiment 3

[0038] Example 3 Analysis of material surface structure after grafting new drugs

[0039] Scanning electron microscopy was used to observe the surface structure of the material grafted with new drugs, and analyze the embedding effect of silk fibroin, the distribution and size of the drug after embedding. An electron microscope is an instrument that uses electron beams and electron lenses instead of light beams and optical lenses to image the fine structures of substances at very high magnifications based on the principle of electron optics. The electron beam of the scanning electron microscope does not pass through the sample, but only scans and excites secondary electrons on the surface of the sample, so the image analysis obtained by scanning electron microscope observation is only for the surface structure of the material. From the scanning electron microscope results, it can be proved that the immobilization of silk fibroin film on the surface of the material presents a la...

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Abstract

The invention discloses an F-embedded termite drug and a eparation method and application thereof. The preparation method comprises the following steps: (1) slk fibroin and N-amber Asian amide in 1:100 mass ratio are dissolved in 1-fluorine-2,4-dinitrobenzene and PBS, and are mixed and react in ice bath, to form optical-activity silk fibroin solution; (2) the optical-activity silk fibroin solution is dripped on the surface of clean material, a termite drug is added in, and another layer of optical-activity silk fibroin solution is paved on to be cooled, dried, embedded, radiated by ultraviolet light for 15 to 20min, so that the embedded drug is grafted to the material, and the SF-embedded termite drug is prepared. The SF-embedded termite drug prepared by the method of the invention has the effect of long-time effect and releasing, improves the toxic effect to the termite, and reduces the pollution caused by the termite drug to the environment.

Description

technical field [0001] The invention relates to the field of preparation of termite medicine, in particular to a silk fibroin-embedded termite medicine and its preparation method and application. Background technique [0002] Termites belong to the subclass Isoptera of the subclass Insecta, mainly including Austermitidae, Grasstermitidae, Woodtermitidae, Rhinotermitidae, Dentotermitidae and Termitidae. Termites are extremely destructive worldwide pests that are distributed all over the world. Their harm involves almost all fields of the national economy, mainly in housing construction, reservoir dams, forest orchards, communication equipment, and cultural relics. It is estimated that the economic loss caused by termites in my country is about 2 billion to 2.5 billion yuan per year. Since the Ministry of Construction Jianfang [1993] No. 166 "Notice on Conscientiously Doing a Good Job of Termite Prevention in Newly Built Buildings", in the ant-infested areas of our country, t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N53/06A01N25/00A01P7/04
Inventor 冯启理关燕清陈佳媚
Owner SOUTH CHINA NORMAL UNIVERSITY
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