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Filtros de 25mm, 0,20um em AC, estéreis (50und)

0.22μm膜过滤器

公司名称: FRILABO
产品编号: 1520012
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Preparation of Primary Cultures of Embryonic Rat Hippocampal and Cerebrocortical Neurons
Author:
Date:
2017-09-20
[Abstract]  This protocol aims at standardizing the procedure to obtain primary cultures of hippocampal and cerebrocortical neurons for in vitro experiments. Cultures should be prepared from cells isolated during embryonic development when neuronal precursor cells are not yet fully differentiated. This helps increasing the quality and quantity of cells, while offering minimal cell death that often occurs during dissociation of differentiated neurons. Cells plated under the appropriate conditions, either in Petri-dishes or in multi-well plates, will develop and establish synaptic contacts over ... [摘要]  该方案旨在标准化海马和脑皮质神经元原代培养物的体外实验。 培养物应从胚胎发育期间分离的细胞制备,当神经元前体细胞尚未完全分化时。 这有助于提高细胞的质量和数量,同时提供通常在分化的神经元解离期间发生的最小的细胞死亡。 在合适的条件下,在培养皿或多孔板中铺板的细胞将随着时间的推移而发展和建立突触接触,因为神经元培养基提供分化所需的营养和营养因子。 在这个协议中,我们描述了制备皮质和海马神经元培养物的方法。
【背景】本方案描述了使用补充有NeuroCultTM SM1的Neurobasal培养基(Chen等人,2008)的大鼠海马和脑皮层神经元的原代培养物的制备。 NeuroCultTM SM1的组成基于B27补充剂的制剂(Brewer等,1993),但是前者的混合物被发现提高了神经元培养的质量,部分地通过用全转运蛋白替代载脂蛋白转运蛋白 Chen et al。,2008)。 此外,NeuroCultTM SM1的化学成分在原始出版物中有更详细的描述,可以更好地控制实验条件。 用化学确定的培养基制备的神经元培养物的特征在于存在低百分比的星形胶质细胞。 通过添加有丝分裂5-氟-2'-脱氧尿苷的化学抑制剂可以防止维持更长时间的培养物中星形胶质细胞的增殖以允许神经元分化。

Preparation of Pneumococcal Proteins for Western Blot Analysis
Author:
Date:
2013-07-05
[Abstract]  This protocol was developed in a study aimed to determine the cellular localization of the lysin of pneumococcal phage SV1 (Frias et al., 2013). We obtained proteins from the surface of Streptococcus pneumoniae by elution with choline or those secreted to the medium. The analysis by Western blot of these fractions allowed us to demonstrate that the phage lysin localizes to the cell wall, associating with choline residues in the teichoic acids. Hence, protein extracts can be used to determine the localization of uncharacterized proteins and can also be useful for other ... [摘要]  该方案是在旨在确定肺炎球菌噬菌体SV1的溶素的细胞定位的研究中开发的(Frias等人,2013)。 我们通过用胆碱或分泌到培养基的那些洗脱从肺炎链球菌的表面获得蛋白质。 通过这些级分的Western印迹分析允许我们证明噬菌体溶素定位于细胞壁,与磷壁酸中的胆碱残基相关。 因此,蛋白质提取物可用于确定未表征蛋白质的定位,并且还可用于其他生物化学分析,例如蛋白质鉴定。 该方案可以容易地适应于不同的肺炎球菌菌株和生长条件,并且其非常适合于分离其他感兴趣的蛋白质。

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