
BrainFectIN™ enables nucleic acids delivery into central nervous system of small animals.
Major difficulties with gene delivery in the central nervous system is the weakness of standard non-viral gene carriers and the limitations associated to the use of viral particles (time-consuming and requires additional saftey precautions). Unlike these methods, BrainFectIN™ is an original non-viral formulation that allows safe, easy and efficient nucleic acids delivery into central nervous system of small animals.
This transfection reagent allows transfection of neural cells in specific brain following stereotaxic injection, with low immunogenicity and rapid and long-term transgene expression.
BrainFectIN™ has been designed by our R&D team to meet in vivo grade quality (reagents performed under high manufacturing and quality standards and tested by strict quality controls).
BrainFectIN™ main advantages:
- Targeted process (stereotaxic injection)
- Good transfection efficiency
- Reduction of the injection volume
- Reduction of the DNA doses
- Minimized toxicity
- Low immunogenicity
- Rapid and long-term transgene expression
Sizes:
- 100 µL of BrainFectIN™ / 20-30 injections
- 250 µL of BrainFectIN™ / 40-60 injections
- 500 µL of BrainFectIN™ / 80-120 injections
Storage: -20°C.Shipping condition: room temperature.
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制冰机原理:
制冰机是一种将水通过蒸发器由制冷系统制冷剂冷却后生成冰的制冷机械设备。根据蒸发器和生成过程方式原理不同,生成的冰的形状也不同,人们一般根据冰形状将制冰机分为颗粒冰机、片冰机、板冰机、管冰机、壳冰机等等。
制冰机的分类:
按冰的形状可分:鳞形片冰机,雪花制冰机,条冰机,板冰机,块冰机(可分食用小块冰机和工业用大块冰机),冰粒机,颗粒机,管冰机,子弹头制冰机。
实验室制冰机种类选择:
我们平时在外面就餐时,经常看到商家在饮料中加入冰块,有时候是方块的,有时候是中空的,还有在菜市场买海鲜的时候也会看到下面铺着一层冰,究竟有什么区别吗?我们在开展实验室工作的时候,应如何选择制冰机呢?
实验室制冰机主要是用于在开展生命科学相关实验时,给样品提供冰浴环境,防止样品(如核酸、蛋白)因为温度的变化导致降解或变质,从而保障实验结果的准确性和有效性。绝大部分的时候,我们的样品是放在EP管、离心管、pcr管等容器里面,然后把样品管插在冰浴中,靠接触来实现温度的保持。由于样品和冰无法直接接触,而是要通过管壁来传输,所以管壁和冰浴的接触面积是冰浴效果的保障,为了更好的保障样品,应尽量的扩大管壁和冰浴的接触面积。
针对以上考虑,实验室制冰机一般选择雪花制冰机,该种类型的制冰机生产出来的冰呈雪花状碎冰,由于颗粒很小,可以和管壁进行密切的接触,保障冰浴效果。
对于出冰的具体要求中,还有一点是非常重要的,出来的雪花冰要求有15-25%的含水量,这样可极大的提高冰浴和管壁的接触效果。
文章来源:厦门国仪科学仪器有限公司
2:冰满探头调整太靠近冰格,顺时针调整180度就好了,也有可能冰满探头坏了。需要更换。
3:水位浮球开关坏,更换。

