POPSO 是一种两性离子缓冲剂，增加渗透压，对阴离子单孔有明显抑制作用。POPSO 抑制氯化物单孔通道的 IC50 为 24 mM。POPSO 增强藻类对铜的吸收和毒性，损伤线粒体内膜。POPSO 的工作 pH 范围为 7.2-8.5。
POPSO is a zwitterionic buffer, increases osmolality and shows marked inhibition of anion uniport. POPSO inhibits chloride uniport with an IC50 value of 24 mM. POPSO enhances copper uptake and toxicity in alga, impairs mitochondrial inner membrane. The working pH range of POPSO sesquisodium salt is 7.2-8.5[1][2][3].
[1]. Ng LT, et al. Effect of buffers and osmolality on anion uniport across the mitochondrial inner membrane. Biochim Biophys Acta. 1993 Jun 10;1143(1):29-37.
[2]. Vasconcelos, et al. Influence of zwitterionic pH buffers on the bioavailability and toxicity of copper to the alga Amphidinium carterae. 2009 Nov;19(10):2542-2550.
[3]. Kebede N, et al. Electrogenerated chemiluminescence of tris(2,2' bipyridine)ruthenium(II) using common biological buffers as co-reactant, pH buffer and supporting electrolyte. Analyst. 2015 Nov 7;140(21):7142-5.
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