Wuhan Desheng Biochemical Technology Co., Ltd

With the rapid development of lithium-ion battery technology, negative electrode materials have always been a research hotspot in the field of research as a key factor affecting battery performance. Among them, the silicon carbon negative electrode material with multi-layer core-shell structure has attracted much attention for its excellent performance, and TRIS buffer plays an indispensable role in the preparation of this material. TRIS buffer: a powerful assistant for preparing silicon carbon negative electrodes TRIS buffer, as an important chemical reagent, plays a crucial role in the preparation process of multilayer core-shell structured silicon carbon negative electrode materials. When preparing the material, the silicon particles need to be dispersed in Tris buffer solution first. Tris buffer provides a stable acid-base environment for the reaction, which is crucial for the smooth progress of subsequent reactions. In such a stable environment, the addition of dopamine hydrochloride enables a series of chemical reactions to proceed in an orderly manner. Dopamine hydrochloride undergoes polymerization reaction under specific conditions, forming a uniform coating layer on the surface of silicon particles, which lays the foundation for constructing multi-layer core-shell structures. By dispersing silicon particles in Tris buffer solution for reaction, the thickness and uniformity of the coating layer can be effectively controlled. A uniform coating layer can better buffer the volume changes of silicon during charging and discharging processes, and improve the structural stability of the material. At the same time, the use of Tris buffer helps to improve the reproducibility of the reaction, ensuring consistent material properties for each batch of preparation, providing the possibility for large-scale production. Optimize the process and improve material performance After obtaining the intermediate, disperse it in solvent B to obtain a suspension, and then add chelating agent and dopant in solvent C in sequence and mix well. Add titanium source dropwise for reaction to obtain the precursor liquid. After adding precursor droplets to the suspension and undergoing a series of operations such as water bath reaction, the composite material also needs to be treated with carbon coated particle precursor. During this process, the stable environment created by TRIS buffer still plays a role, ensuring the precise progress of each step. After a series of TRIS assisted preparation processes, the resulting multi-layered core-shell structured silicon carbon negative electrode material has many excellent properties. It has multi-level buffering function, which can effectively cope with the huge volume changes of silicon during the insertion and extraction of lithium ions, reduce material pulverization, and extend the service life of the battery. At the same time, the material has dual lithium storage capacity, which increases the storage capacity of lithium ions and thus enhances the energy density of the battery. In addition, the construction of its continuous conductive network accelerates the transmission speed of electrons, reduces the internal resistance of the battery, and enables the battery to have better rate performance. Looking ahead to the future, TRIS supports the development of batteries With the rapid development of new energy vehicles, portable electronic devices and other fields, higher requirements have been put forward for the performance of lithium-ion batteries. The silicon carbon negative electrode material with multi-layer core-shell structure is regarded as a powerful candidate for the next generation of lithium-ion battery negative electrode materials due to its excellent performance. As an important reagent in the preparation process of this material, TRIS's importance is self-evident. Hubei Xindesheng Material Technology Co., Ltd., as a professional manufacturer of TRIS and other biological buffering agents, has unique methods and insights for controlling various indicators of products, ensuring that customers receive products with excellent performance and all indicators meet relevant standards. Desheng adheres to the concept of "quality first, technology leading" in the production of every product. Customers at home and abroad can rest assured to purchase. If you have any related procurement needs in the near future, please feel free to contact me at any time!      

In the field of personal hygiene and cleaning products, hand sanitizer has become an indispensable part of daily life. Especially for hand sanitizers, they are favored by consumers due to their convenience and rapid sterilization effect. Among numerous ingredients, carbomer plays a crucial role as an important thickener and stabilizer in improving the performance of hand sanitizers. This article will explore the application of Carbopol in hand sanitizers and the many benefits it brings. Basic characteristics of Carbopol Carbopol is a polymer with the chemical name polyacrylic acid, and its molecular structure contains a large number of carboxylic acid groups. These groups enable Carbomer to form high viscosity gel in water, with good thickening, suspension and stability. In addition, Carbopol also has certain emulsifying ability and biological adhesion, making it widely used in cosmetics and pharmaceuticals. The role of Carbopol in hand sanitizer In the formula of hand sanitizer, Carbopol mainly plays the following roles: 1. Thickening and Stability Carbopol can significantly increase the viscosity of hand sanitizer, making it easier to use and control. At the same time, it can also stabilize other ingredients in the formula, prevent layering and precipitation, and ensure the uniformity and consistency of the product. For example, in the formula of a hand sanitizer, the addition of Carbopol between 0.3% and 0.5% can effectively improve the texture and stability of the product. 2. Improve user experience The gel formed by Carbomer is fine and smooth when applied on the hand, easy to push and absorb. It can form a uniform protective film on the hands of hand sanitizer, not only enhancing the sterilization effect, but also avoiding stickiness and improving the user's experience. 3. Enhance sterilization effect The biological adhesiveness of Carbopol enables it to prolong the residence time of hand sanitizer on the skin surface, thereby enhancing the effectiveness of the antibacterial ingredients. In addition, it can also work synergistically with other ingredients in the formula to improve overall bactericidal performance. For example, the addition of Carbopol can further enhance the bactericidal effect and prolong the action time in hand sanitizers containing modified soy peptides and polysaccharides from Paeonia lactiflora. 4. Mild and non irritating Carbopol has good skin compatibility, no irritation to the skin and mucous membranes, and no allergic reactions. This makes hand sanitizers containing carbomer suitable for people of all skin types, especially children and those with sensitive skin. At the same time, it can also reduce the irritation of other ingredients in hand sanitizer to the skin and protect the skin barrier function. According to relevant patent materials, the formula of a wash free hand sanitizer contains modified soybean peptide, pinus polysaccharide, glycerin, carbomer, triethanolamine, vitamin E, rose essence, etc. Among them, the amount of carbomer added is 0.3% to 0.5%. This hand sanitizer not only has excellent bactericidal effect, but also has a long duration of action. After use, the skin feels gentle and non irritating, and is highly praised by consumers. In practical application, Carbomer has good compatibility with other ingredients and can form a stable gel system. Its thickening effect makes it easier to control the amount of hand sanitizer used, avoiding waste. Meanwhile, the biological adhesion of Carbopol can also prolong the residence time of hand sanitizer on the skin surface, thereby enhancing its bactericidal effect. Hubei Xindesheng Material Technology Co., Ltd. focuses on the research and production of carbomer and related materials, providing a series of standardized high-quality carbomer resin products. If you have any recent purchasing needs, please click on the official website for more details or contact me. Looking forward to your consultation!  

In the era of booming biotechnology, enzyme preparations, as key biocatalysts, play an irreplaceable role in many fields such as precise medical detection and diagnosis, efficient synthesis of biopharmaceuticals, and improvement of food processing quality. However, the activity of enzymes is highly susceptible to interference from external environmental factors, and improper storage can lead to a decrease or even inactivation of their activity, seriously affecting their practical application effectiveness. Therefore, mastering scientific methods for preserving enzyme preparations is an important prerequisite for ensuring their optimal catalytic performance. Freeze dried powder storage: precise control of multi ring nodes Freeze dried powder is a common stable form of enzyme preparation, and its preservation involves multiple key steps such as preservation, transportation, and reconstitution. In terms of preservation, temperature and humidity are key factors. Storing freeze-dried powder at 4-8 ℃ can meet short-term storage needs. If long-term storage is required, it needs to be frozen in an environment of -20 ℃, while ensuring a dry storage environment to prevent moisture absorption, as moisture may cause conformational changes in enzymes, thereby affecting activity. During transportation, in order to maintain a low temperature environment, it is necessary to use ice packs with insulated boxes, and the temperature should be controlled at ≤ 10 ℃. The freeze-dried powder should also be packaged to prevent damage to the product caused by ice pack rupture. The reconstitution process cannot be ignored, and specialized enzyme buffer solutions such as SAHH enzyme buffer should be used. When reconstitution, it should be gently mixed to avoid the formation of bubbles, and direct sunlight should be avoided to prevent adverse effects of ultraviolet radiation on enzyme activity. If the enzyme solution after reconstitution is not used up, 20% glycerol can be added and stored at 4 ℃. Glycerol can reduce water activity and minimize enzyme denaturation and inactivation. Liquid enzyme preservation: flexible response based on duration The storage method of liquid enzymes should be flexibly selected according to the length of use time. For short-term use, i.e. use up within 1-3 months, the liquid enzyme can be stored in an environment of 4 ℃ -8 ℃ while maintaining a final concentration of 20% glycerol. Glycerol acts as a stabilizer here, helping to maintain the stability of enzyme molecular structure. When long-term storage is required, with a time span of 1-3 years, the method of packaging and freezing at -20 ℃ should be adopted. Packaging can avoid repeated freezing and thawing, as repeated freezing and thawing can cause enzyme molecules to undergo the formation and melting of ice crystals, resulting in the destruction of the enzyme's spatial structure and affecting its activity. In addition, there are some situations where the "red line" for liquid enzyme preservation must be strictly followed. Liquid enzymes should not be left directly at room temperature for more than 2 hours. Temperature fluctuations are significant at room temperature, and microorganisms are prone to grow, which may damage the enzyme's activity. At the same time, it is necessary to avoid mixing enzymes with heavy metals and strong acid-base compounds. Heavy metal ions may bind to certain functional groups in enzyme molecules, altering the structure of the enzyme; Strong acidity or alkalinity can break the chemical bonds in enzyme molecules, leading to enzyme denaturation and inactivation. Whether it is freeze-dried powder or liquid enzyme, scientific preservation methods are the cornerstone to ensure their activity. In practical applications, researchers, production enterprises, and other parties should attach great importance to the preservation of enzyme preparations. Researchers follow the correct storage methods to ensure the accuracy and reliability of experimental data; Good preservation work by production enterprises can ensure product quality and enhance market competitiveness. Hubei Xindesheng Material Technology Co., Ltd. has established a professional enzyme preparation research and development team to develop high-quality and stable enzyme preparation products. The professional technical team can answer any questions you may have during the use and storage of enzyme preparations at any time. If you have any recent purchasing needs, please click on the official website to learn more details or contact me directly!      

In the development and production process of personal care products, Carbopol plays an indispensable role as an important thickening and stabilizing ingredient. However, little is known about the complex and subtle relationship between the viscosity of carbomer dispersion and the concentration of hydrogen ions. This article will take you on a deeper exploration of this scientific mystery, revealing how hydrogen ion concentration affects the viscosity of Carbopol, and the profound implications of this discovery for the personal care products industry. Hydrogen ion concentration: an invisible regulator of carbomer viscosity Carbopol, as a type of polymer, is affected by various factors in its dispersion viscosity, among which hydrogen ion concentration is a key regulatory factor. Research has found that as the concentration of hydrogen ions decreases, the viscosity of the carbomer dispersion shows a trend of first increasing and then decreasing. This means that within a specific range of hydrogen ion concentrations, carbomer can achieve its maximum thickening efficiency, providing ideal texture and stability for nursing products. Behind this phenomenon is the discrete ion effect of the neutralizing agent in the solution. When the concentration of hydrogen ions is too high or too low, the discrete ions of the neutralizing agent will interfere with the interactions between carbomer molecules, thereby affecting its thickening effect. Therefore, precise regulation of hydrogen ion concentration is particularly important in the formulation design of personal care products. Optimal range of hydrogen ion concentration: tailored for nursing products For personal care products with added carbomer, the choice of hydrogen ion concentration is not arbitrary. Research has shown that when the concentration of hydrogen ions is between 10-6 and 10-7, the viscosity value of carbomer is relatively stable and does not change much. This range is considered as the optimal hydrogen ion concentration range for carbomer thickening. The hydrogen ion concentration at which different types of carbomers reach maximum viscosity within this range varies slightly. For example, Carbopol 940 and Carbopol 980 reach their maximum viscosity at a hydrogen ion concentration of 10-8 mol/L, while Carbopol 1342 exhibits the best thickening effect at 10-6 mol/L. These differences provide more options for nursing product developers to choose the most suitable carbomer type and hydrogen ion concentration based on specific product needs. In addition, for situations where viscosity between different carbomers needs to be compared, adjusting the pH value of the carbomer dispersion to the optimal range mentioned above can more accurately evaluate its thickening performance and provide strong support for product formulation design. Weakly acidic trend: catering to the natural needs of personal care products It is worth noting that during the development of Capo resin, the concentration of hydrogen ions that achieve maximum thickening effect gradually tends towards weak acidity. This trend coincides with the pH range required for most personal care products. A weakly acidic environment not only helps maintain the natural barrier function of the skin, but also improves the stability and comfort of skincare products. Therefore, in the development of personal care products, choosing the appropriate type of carbomer and hydrogen ion concentration can not only optimize the texture and stability of the product, but also better meet consumers' needs for natural, mild, and safe care products. Hubei Xindesheng Material Technology Co., Ltd. focuses on the research and production of carbomer and related materials, providing a series of standardized high-quality carbomer resin products. If you have any recent purchasing needs, please click on the official website for more details or contact me. Looking forward to your consultation!