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Application of Nano Silicon Dioxide in Plant Disease and Pest Control

In modern agriculture, pesticides are an important means of reducing plant diseases and pests and improving agricultural production efficiency. However, currently most chemically synthesized pesticides suffer from issues such as biological toxicity, drug resistance, and environmental hazards, and the effective utilization rate of traditional pesticide formulations is relatively low. In order to solve these problems, it is urgent to introduce new and efficient plant disease and pest control technologies to reduce the abuse of chemical pesticides and promote sustainable agricultural development. In recent years, the development of nanomaterials and related technologies has opened up new avenues for plant disease and pest control. Their unique surface properties and small size effects, as well as novel physical and chemical properties, help overcome many inherent limitations of existing pesticide products. Among various types of nanomaterials, nano silica has attracted widespread attention due to its large specific surface area, good stability, easy surface modification, and good biocompatibility. This article summarizes the synthesis methods of nano silica and its application in plant disease and pest control, based on recent research progress at home and abroad. It also looks forward to the challenges it faces and future development prospects, aiming to provide theoretical basis for the application of nano silica in plant disease and pest control.

2025-05-26

Silicon dioxide: the "universal pharmaceutical excipient" for pharmaceutical preparations

Medicine has been closely related to people's lives since ancient times. The production of drugs began with traditional medicine and later evolved to separate and extract natural medicines from natural substances, gradually developing and establishing an industrial production system for chemical drugs. Medicinal excipients play a crucial role in the pharmaceutical industry. Medicinal excipients refer to the excipients and additives used in the production and formulation of drugs. In addition to shaping, acting as carriers, and improving stability, they also have important functions such as solubilization, solubilization assistance, and sustained and controlled release. They are important components that may affect the quality, safety, and effectiveness of drugs. Silicon dioxide, as a widely used inorganic material, is also a very useful pharmaceutical excipient in the pharmaceutical field. The structural formula of auxiliary silica is mSiO2 · nH2O, which is a white powder with good fluidity, high purity, and no pollution. It has the characteristics of small particle size, large specific surface area, and many pores. At the same time, the silicon hydroxyl groups distributed on the surface make it have good adsorption performance. Adding medicinal excipient silica can effectively improve the quality and performance of drug formulations, especially tablets, greatly enhancing the market competitiveness of drugs. Its application in drug formulations has received increasing attention.

2025-05-20