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Precautions for using SiRNA liposome extruder
Date: 2025-06-17Read: 1
The SiRNA liposome extruder plays an important role in biomedical research and drug development, as it can effectively prepare liposomes with uniform particle size. However, proper use and maintenance of the equipment are key to ensuring the success of the experiment and the lifespan of the device. Here are some things to note when using SiRNA liposome extruder:
1、 Equipment inspection and preparation
Check the integrity of the equipment: Before use, carefully inspect all components of the equipment, especially those in contact with materials such as O-rings and filter membranes, to ensure that there is no wear or damage.
Preheating equipment: Due to the phase transition temperature of phospholipids and other materials, the extruder jacket needs to be preheated to a certain temperature (usually 50-60 ℃) by passing constant temperature water through it before use, and this temperature should be maintained to ensure uniform extrusion of liposomes.
2、 Precautions during operation
Uniform force application: When pushing the syringe, the force should be applied evenly and kept in the direction of the straight line of the syringe to avoid excessive force causing equipment damage or uneven material distribution.
Avoid clogging: For larger liposome suspensions, it is recommended to perform pretreatment (such as ultrasound or high-pressure homogenization) first to reduce the risk of clogging the filter membrane.
Pay attention to the material of the syringe: The syringe housing is usually made of glass. Before use, check for cracks and handle with care during operation.
3、 Cleaning and maintenance
Timely cleaning: After each experiment, the equipment should be disassembled and cleaned immediately to avoid material solidification inside the equipment. It is recommended to use neutral detergent or solvents from the formula for cleaning.
Regularly replace vulnerable parts: O-rings and filter membranes should be inspected regularly and replaced in a timely manner to prevent leakage or incomplete extrusion caused by wear.
Disinfection and storage: The cleaned parts can be wiped or soaked with 70% alcohol for antibacterial storage.
4、 Safety and Protection
Wear protective equipment: Operators should wear necessary protective equipment such as gloves, goggles, etc. when using the equipment to prevent accidental injury.
Pay attention to device movement: When lifting or moving devices, pay attention to surrounding personnel to avoid collisions or accidents.
5、 Troubleshooting
Leakage problem: If there is leakage, check whether the nut is tightened and whether the O-ring is worn or damaged.
Extrusion difficulty: If the extrusion is slow or impossible, it may be due to large material particles, inappropriate temperature, or clogged filter membrane, and adjustments need to be made according to the specific situation.
By following the above precautions, the efficiency of SiRNA liposome extruder and the reliability of experimental results can be effectively improved, while extending the service life of the equipment.
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