Wuhan Desheng Biochemical Technology Co., Ltd

In the field of chemiluminescence detection, acridine ester is a commonly used direct luminescent marker. Its stability is greatly affected by environmental factors. Understanding under what conditions it can maintain stability and under what conditions it is easy to decompose is of great significance for the production, storage, and use of reagents. Overall, acidic environments are conducive to maintaining activity, while alkaline, oxidative, and light conditions need to be avoided. Acidic environment: maintaining a stable ideal state Acridine esters exhibit good stability in acidic solutions. When the pH value of the solution is below 4.8, the molecular structure of acridine ester is intact and can maintain its luminescent properties for a long time. This characteristic provides feasible conditions for the storage of acridine ester labeled reagents. In the process of reagent production, preparing acridine ester and its label in an acidic buffer system can effectively extend the shelf life of the product and reduce activity degradation caused by storage. Temperature is also one of the factors that affect stability. At room temperature, the conjugate of acridine ester with protein can maintain good stability, and its optical quantum yield will not show a significant decrease. After preparing acridine ester into freeze-dried products, the storage conditions are more relaxed. In a freezing environment of minus 20 degrees Celsius, freeze-dried products can be stored for more than a year without significant performance loss. This has practical significance for the shelf life design of commercial reagent kits. Alkaline environment: conditions that trigger decomposition Acridine esters are extremely unstable in alkaline environments and are prone to decomposition reactions. In fact, this characteristic is the functional basis of acridine ester as a chemiluminescence marker. In practical testing, adding alkaline solution and oxidant is the standard operation to initiate the luminescence reaction. Acridine ester rapidly decomposes upon contact with hydrogen peroxide under alkaline conditions, while releasing a light signal. Therefore, alkaline environment is not a storage condition, but a usage condition. Reagent developers need to distinguish between these two scenarios: maintaining acidity during storage and creating a temporary alkaline environment during use. Oxidative Environment and Light: Factors to Avoid Oxidative environment is also an important factor leading to the instability of acridine esters. In the presence of strong oxidants, acridine esters are prone to unexpected decomposition reactions, which affect their subsequent luminescent properties. Therefore, in the preparation and storage of reagents, the introduction of oxidizing substances should be avoided as much as possible. The lighting conditions also need to be taken seriously. Acridine esters may undergo partial decomposition under light conditions, which can affect the final luminescence effect. This means that appropriate measures should be taken to avoid light during production and storage. Using brown containers for packaging, operating in low light environments, and avoiding direct sunlight can effectively reduce photo induced decomposition reactions and protect the activity of acridine esters. Comprehensive management strategy Based on the stability characteristics of acridine esters, a clear management strategy can be developed: 1. Storage stage: maintain acidic pH, low temperature environment, avoid light and seal, and avoid contact with oxidants; 2. Usage stage: alkaline and oxidative conditions are added during detection to trigger luminescence, but this process should be completed temporarily before detection and should not be mixed in advance; 3. Transportation stage: Packaging should be carried out according to storage conditions, avoiding high temperatures and light exposure. Following these principles can maximize the luminescence activity of acridine esters, ensuring the reliability of test results and consistency between batches. Hubei Xindesheng Material Technology Co., Ltd. specializes in producing chemiluminescent reagents such as acridine esters. We have a professional technical team to guide the correct use of acridine ester reagents and provide excellent after-sales service. If you have any purchasing needs in the near future, please click on the official website for more details or contact me directly!  

The 24th World Pharmaceutical Raw Materials China Exhibition (CPHI China 2026) has successfully concluded on June 18th at the Shanghai New International Expo Center. This exhibition brings together more than 3600 exhibitors from around the world and over 110000 professional merchants from home and abroad, covering the entire industry chain of active pharmaceutical ingredients, pharmaceutical intermediates, formulation technology, biopharmaceuticals, contract production, laboratory equipment, and pharmaceutical machinery packaging. Hubei Xindesheng Material Technology Co., Ltd. made a heavyweight debut with its core product lineup, and received numerous domestic and foreign merchants during the three-day exhibition period. With its strength in hard core products and one-stop raw material solutions, it received numerous inquiries and cooperation intentions, successfully completing the exhibition journey. The popularity of the booth continues to rise, and domestic and foreign merchants are deeply negotiating The three-day exhibition attracted a continuous flow of visitors to the New Desheng booth, including overseas buyers, domestic IVD companies, small and medium-sized reagent manufacturers, and technical engineers from research institutes. The on-site sales and technical R&D team is stationed throughout the entire process, providing one-on-one product parameter explanations, application scenario matching, and answering process questions for customers. They also provide customized raw material solutions for customer reagent kit development, capacity expansion, and cost optimization needs. Hubei Xindesheng's full matrix exhibits debut Hubei Xindesheng Material Technology Co., Ltd. was registered and established in 2017 (formerly known as Wuhan Desheng Biochemical Technology Co., Ltd. established in 2005). The company is headquartered in Guanggu United Science and Technology City, Gedian Development Zone, Ezhou City, Hubei Province, and has two research and development production bases, Gedian (54 acres) and Huanggang (70 acres), with an annual production capacity of 5000 tons for all categories. The core product system of this exhibition covers IVD in vitro diagnostics, biomedicine, daily chemical and other fields: Hubei Xindesheng Blood Vessel Reagent has over 20 types of products and supports one-stop procurement. Based on the advantages of chemical synthesis technology, more than 50 product matrices such as TRIS, HEPES, MOPS, etc. have been formed using biological buffering agents, with a stable purity of over 99%. The indicators can be customized according to customer application scenarios. TOOS, MAOS and other products in chromogenic substrates have surpassed some indicators compared to well-known foreign companies, helping reagents improve detection indicators and reduce background interference. Together with chemiluminescence reagents and enzyme preparations, they have been widely used in various types of in vitro diagnostic kits. With the commissioning of the new Huanggang factory, the production capacity of biological buffering agents and carbomers has been significantly increased, providing more stable and efficient supply guarantees for fields such as biomedicine and daily chemical products. The exhibition has come to an end, and cooperation is not limited. We look forward to continuing to work together for a win-win situation Thank you to all the new and old customers and industry colleagues who have come to the booth for negotiations! We are always waiting for inquiries both online and offline, looking forward to future in-depth cooperation. In the future, Hubei Xindesheng will continue to increase research and development innovation, empower the development of industries such as IVD in vitro diagnostics, biomedicine, and daily chemical products with more stable products and professional technical support, and help upgrade the human health industry!    

Serum separation gel is a key material for achieving physical isolation between serum and blood cells in blood collection vessels. In actual production, the amount and operation process of separation gel directly affect the separation effect and stability of blood collection tubes. Different specifications of blood collection tubes correspond to different amounts of additives, and there are clear sequential requirements for the processing steps after adding glue. The dosage of separation gel for different specifications of blood collection tubes There are various sizes of blood collection tubes, ranging from 2 milliliters to 9 milliliters, with tube diameters of 13 millimeters and 16 millimeters. The amount of separation gel added is not strictly proportional to the volume of the blood collection tube. The blood collection tubes of 2ml, 3ml, and 4ml sizes all use 13 × 75mm tubes, and the amount of separation gel added is 0.8g. The 5ml and 6ml specifications use 13 × 100mm tubes with the same addition amount of 0.8g. The 9ml specification uses a 16 × 100mm tube body, and the addition amount is increased to 1g. From these data, it can be seen that for a tube with a diameter of 13 millimeters, whether the volume is 2 milliliters or 6 milliliters, the addition of 0.8 grams of separation gel can basically meet the usage requirements. The key is that the final thickness of the separation adhesive layer needs to reach 6 millimeters, which is the minimum requirement for effective isolation. Regardless of the total volume of the blood collection tube, the separation gel after centrifugation should form a continuous barrier of sufficient thickness between serum and blood cells to prevent the exchange of substances between the two sides. Process flow after adding separation adhesive The addition of separation gel is not the final step in the production of blood collection tubes, there are multiple processing steps that follow. The standard procedure is to add glue first, and then leave it for 24 hours. The purpose of this static step is to ensure that the separation glue is fully leveled and stable at the bottom of the tube, eliminating internal stress or uneven distribution generated during the gluing process. After placement, add the coagulant. The function of coagulants is to accelerate the coagulation process after blood collection and shorten the sample processing time. After adding the coagulant, a drying operation is required to remove excess moisture from the tube. Subsequently, vacuum is applied to create a negative pressure environment inside the blood collection tube, which facilitates the automatic flow of blood into the tube during blood collection. Finally, there is the packaging process. The produced blood collection tubes need to undergo centrifugation validation during use, with centrifugation parameters generally set at 3000 revolutions per minute for 15 minutes. Under these conditions, the separation gel should be able to migrate smoothly between serum and blood cells, forming a complete isolation layer. The core use of separation glue The main function of serum separation gel is to form an isolation layer between the cellular components of blood and serum. This physical barrier can prevent the exchange of substances between blood cells and serum, including the diffusion of potassium ions, enzymes, and other components from blood cells into serum, as well as the absorption of certain components in serum by blood cells. By preventing these exchanges, the separation gel ensures that the blood sample maintains its original characteristics for a certain period of time, making the test results more accurate and reliable. At present, the application scenario of separation gel is mainly for the examination of human blood samples. Meanwhile, with the development of veterinary testing and animal experiments, separation gels have also been used for the extraction and examination of animal blood samples. In addition, by utilizing the precise specific gravity characteristics of the separation gel, various specific cellular components or analytes can be extracted from the blood. Hubei Xindesheng Material Technology Co., Ltd. has been deeply involved in the field of serum separation gel for many years. With professional research and strict production, we have created products with excellent performance and stable quality. We always uphold a rigorous and responsible attitude, providing high-quality serum separation gel for the medical testing industry. Choosing Hubei Xindesheng means choosing a professional, stable, and reliable medical testing guarantee. If you have any purchasing needs in the near future, please click on the official website to learn more details!    

In the field of chemiluminescence immunoassay, selecting suitable luminescent substrates directly affects the performance and operational convenience of the detection system. Acridine esters are a class of chemiluminescent reagents that do not require enzyme catalysis and can directly emit light, similar to luminol AMPPD, Compared with substrates such as triphenylpyridine ruthenium, it exhibits unique advantages in terms of ease of operation, system stability, and cost of use. No catalyst needed: simplifying the reaction system Acridine esters (including acridine sulfonamide) can emit a light signal with a wavelength of 470 nanometers when oxidized by hydrogen peroxide under alkaline conditions. This luminescent process has high luminescence efficiency, and its excited state product N-methylacridone is the luminescent material of the reaction system. Acridine esters directly participate in luminescent reactions without the need for any enzyme catalysis. This characteristic brings about the simplification of the reaction system. In immunoassays, acridine esters can directly label antibodies, antigens, or magnetic beads. After an immune reaction occurs between the marker and the test sample, a solid-phase complex is formed. After rinsing, only hydrogen peroxide and sodium hydroxide need to be added to make the system alkaline, and the acridine ester will decompose and emit light. Throughout the process, there is no need to consider issues such as enzyme activity preservation, temperature adaptation range, and pH compatibility, making the operation steps more concise. Comparison with Enzymatic Luminescence System Luminol and AMPPD belong to enzymatic chemiluminescence substrates. Luminol requires catalysis by peroxidase (POD or HRP) to effectively emit light, while AMPPD requires catalysis by alkaline phosphatase. Due to the addition of enzymes in the reaction, the complexity of the system significantly increases. The activity of enzymes is greatly affected by temperature, and storage and transportation require cold chain protection; At the same time, the suitable pH range for enzymes may not fully match the optimal conditions for the protein to be labeled, and multiple factors need to be comprehensively balanced in formula development. In addition, enzymatic systems often require enhancers to enhance the luminescence signal, further increasing the composition and cost of the reagents. The acridine ester system does not involve enzymes, so the above problems do not exist. No need for enhancers means lower background luminescence and higher signal-to-noise ratio, fewer interference factors, and more reliable detection results. Comparison with electrochemiluminescence Tripyridine ruthenium belongs to electrochemiluminescence substrates. This type of system performs excellently in terms of detection speed, sensitivity, detection range, and precision. But its drawbacks are also quite obvious. In terms of instruments, electrochemiluminescence usually adopts a flow colorimetric cell design, which poses a potential risk of cross contamination. The price of testing instruments is relatively high, with relatively few domestic users and limited popularity. In addition, electrochemiluminescence systems are more sensitive to environmental factors and non-specific reactions, and have higher requirements for operating environment and reagent quality. The acridine ester system is based on the principle of ordinary chemiluminescence and does not require complex electrodes and electrochemical reaction cells. The instrument cost is much lower than that of electrochemiluminescence. At the same time, the use and research and development costs of reagents are also more advantageous, suitable for large-scale promotion and application in routine detection scenarios. comprehensive value The advantages of acridine ester luminescent agents are mainly reflected in the following aspects: no need for enzyme catalysis, no need for enhancers, low background luminescence, high signal-to-noise ratio, minimal interference, and controllable use and development costs. These characteristics make acridine esters a competitive choice in tubular chemiluminescence detection. Hubei Xindesheng Material Technology Co., Ltd. specializes in the production of chemiluminescence reagents. In addition to luminol reagents, the available acridine ester varieties include DMAE-NHS, Me DMAE-NHS, NSP-DMAE-NHS, NSP-SA-NHS, etc., which can meet the requirements of different labeling needs and detection platforms. If you have any purchasing needs in the near future, please feel free to consult me at any time!