StainRITE^® Wright-Giemsa Stain Solution is a dual purpose stain useful for blood films, parasites and bone marrow aspirates. Prepared from certified dyes.

Ready-to-use solution makes the differentiation of blood cells much easier to identify.

Based on a commonly used Azure-Eosin formula.

Stain Results:

• Erythrocytes - light pink to moderate purple, not grey or blue
• Polymorphonuclear Neutrophils - blue to dark blue to purple nuclei, reddish purple lilac granules, pale pink cytoplasm
• Eosinophils - blue to dark blue to purple nuclei, red to orange-red granules, blue cytoplasm
• Basophils - purple to dark blue to black nuclei, purple granules
• Lymphocytes and monocytes - dark purple nuclei, sky blue cytoplasm
• Platelets - violet to purple granules

转染技术新宠-Polysciences阳离子聚合物基因转染技术 其优点：适用宿主广泛，操作简便，细胞毒性小，转染率高。其中聚乙烯亚胺（PEI）的转染性能最好。聚乙烯亚胺是一种具有较高的阳离子电荷密度的有机大分子，每相隔两个碳原子，就是第三个原子都是质子化的氨基氮原子，使得聚合物网络在任何PH下都能充当有效的“质子海绵”体。这种聚阳离子能将各种报告基因转入各种种属细胞，其效果好于脂质聚酰胺，而且细胞毒性低。大量实验证明，PEI是非常有希望的基因治疗载体。目前在设计更复杂的基因载体时，PEI经常做为核心组成成分。