I did the math using 66430.3 g/mol and it gives me 9.96g of BSA in 1 mL of water. This is not going to dissolve. I have looked at other papers and they use this concentration but they do not explain how they actually made the solution. Usually it is written as mg/mL or something like that because it is a protein but that would again need the molecular weight which gives 9964.5 mg/mL which is still an unusable number.
Here is the original paper I am looking at Article A Micro-Platinum Wire Biosensor for Fast and Selective Detec...
Are you sure the recipe in the paper you quoted is correct? Most references to BSA solution are in the 1 to 5 % range. Suppliers such as Sigma seem to go to 35% w/v at the most.
Why not contact the researchers and ask what exactly they did?
Several recipes have BSA in a 150mM saline solution, perhaps it was mis-copied from somewhere else?
Have you looked at answers to: https://www.researchgate.net/post/How_do_you_dissolve_BSA_powder ?
I agree with Matthew Wheal. I also saw recipes that have BSA in a 150 mM NaCl solution. For example:
Preparation of 1.66 mM BSA stock solution.
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