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Purification of quantum dot-based bioprobes with a salting out strategy
1School of Pharmacy, Shaoyang University Shaoyang 422000 P. R. China.
Nanoscale Advances
|September 22, 2022
Abstract:
A salting out strategy is reported for purification of IgG-conjugated QD (IgG-QD) bioprobes. Adding NaCl can precipitate free IgG selectively, while the IgG-QD maintains good colloidal stability. The dynamic light scattering technique reveals that this is due to the relatively positive zeta potential of free IgG than that of the IgG-QD.
