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hanlihao

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[求助] QD800活体显像问题

请教各位前辈:
有没有人买过Invitrogen公司的量子点啊,如果用这个公司的量子点标记一次抗体,能做几只活体动物啊?
下述为量子点偶联抗体说明书上的一个举例:
Conjugate collected from the separation column is typically in the 1 to 2 micromolar range. If desired, the conjugate concentration can be determined by measuring the optical density of the conjugate at the specified wavelength and then using the formula A = εcL, where A is the absorbance, ε is the molar extinction coefficient (Table 2), c is the molar concentration, and L is the pathlength.
For example, for a Qdot® 655 antibody conjugate, if material eluting from the final column has A = 0.65 measured in a cuvette with 1 cm pathlength, then c = A/ε = 0.65/800,000 = 0.812 μM conjugate(纯化后体积大概有500ul), based on nanocrystal absorbance.
如果按上述计算结果,再参考文献每只动物注射200Pmol做活体显像,那最多只能做两只动物啊。不知道我算的对不对,请各位前辈赐教!!!
谢谢各位!
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