Phosphotungstic Acid Negative Stain Solution (5%)
mRNA synthesis
In vitro transcription of capped mRNA with modified nucleotides and Poly(A) tail
Tyramide Signal Amplification (TSA)
TSA (Tyramide Signal Amplification), used for signal amplification of ISH, IHC and IC etc.
Phos Binding Reagent Acrylamide
Separation of phosphorylated and non-phosphorylated proteins without phospho-specific antibody
Cell Counting Kit-8 (CCK-8)
A convenient and sensitive way for cell proliferation assay and cytotoxicity assay
SYBR Safe DNA Gel Stain
Safe and sensitive stain for visualization of DNA or RNA in agarose or acrylamide gels.
Inhibitor Cocktails
Protect the integrity of proteins from multiple proteases and phosphatases for different applications.
负染色又称阴性染色，是由Hall发现的染色技术，与普通的正染色相对。其原理是利用重金属盐包绕低电子密度的样品，增强样本周围的电子密度，从而造成“质量-厚度”差异，增强散射吸收反差，使样品在黑暗背景上呈现明亮的结构。负染色液包括磷钨酸、钼酸铵、印度墨汁等，其中最常用的是1～3%的磷钨酸。
磷钨酸负染色液（5%）适用于显示大分子、细菌、病毒、原生动物、噬菌体、细胞器、核酸大分子、蛋白质晶体及其他大分子材料等。染色后的样品图像呈现透明的亮光，而背景图像呈黑色。
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