New breakthroughs in research on plant-derived pesticides

September 13 12:03:33, 2024

After many years of research, the Innovation Research Group of the Kunming Institute of Botany, Chinese Academy of Sciences has successfully developed a process for the preparation of azadirachtin, an insecticidal active substance, using the technology of degreasing, extraction, and separation, using the Azadirachium seeds as a raw material. The purity of the alfalfa is more than 90%. The successful development of this process marks a breakthrough in the research on the use of the third generation of pesticides in China. Indigenin is a plant-origin biopesticide that kills more than 200 species of insects and aphids, nematodes, bacteria, fungi and viruses. It is the best botanical pesticide known to produce pollution-free pesticides. For a long time, how to extract high-purity azadirachtin from Azadirachta is an ongoing research topic among scientists in various countries. At present, this technology has completed the preparation of 0.3%, 0.5% of two kinds of azadirachtin EC products, and has been approved by the Ministry of Agriculture for pesticide efficacy testing in the field. Experiments have shown that 0.5% azadirachtin has obvious virulence effects on Plutella xylostella and Pieris rapae. It does not pollute the environment and is a promising biopesticide. 0.3% azadirachtin is more effective against Plutella xylostella. A good control effect, and the effect is positively correlated with the dose, and the best control with high dose (150 ml/mu). After an in-depth study of the availability of pharmaceuticals, it was demonstrated that the control efficacy of azadirachtin EC, the immediate availability of pharmaceuticals, and the use of chemically synthesized pesticides could not be replaced in terms of environmental protection and reduction of pesticide residues.

Orthopedic Implant

Orthopedic implants are medical devices used to repair or replace damaged bones or joints,you can called them trauma implants.They can help restore bone and joint function, reduce pain and improve quality of life. The following is detailed information about the common types and uses of orthopaedic implants.

1. Bone screw

Bone screws are long, thin, spike-shaped implants used to attach bones. They are commonly used surgically to hold bones together to promote healing. Bone nails can be used to repair fractures, dislocations of joints, and other bone injuries.

2. Bone plate

A plate is an orthopedic surgical implant that is used to repair broken bones, usually in conjunction with screws, to hold bones together during surgery, and can be used to repair fractures and other bone injuries, promoting bone healing and restoring bone function. Bone plate and screw are usually made of stainless steel, pure titanium and titanium alloy, can be selected according to the different needs of customers.

3. Joint Replacement implants

A joint replacement implant is an implant used to replace a damaged joint. They are usually made of metal, plastic or ceramic and can replace hips, knees, shoulders and more. Joint replacement implants can help reduce pain, improve joint movement and improve quality of life.

Application

This product is suitable for compression and protective fixation of limbs, pelvis, spine and maxillofacial bone fractures in combination with matching bone screws.

Contraindications

1. Loose fracture, poor fracture or severe comminuted fracture, affecting the firm fixation of the implant.

2.allergic to metal or drug abuse, mental illness, systemic neurological disease, immune suppression disorders.

3. The patient is unwilling to restrict activities or not follow the doctor's advice.

4. Any disease affecting implant function and wound healing.

In conclusion, orthopedic implants are an important orthopedic products. Before using orthopedic implants, doctors should evaluate the patient's condition and surgical risks, and select the most suitable orthopaedic trauma implants for the patient.

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