Colloidal stability of cur@star solution was evaluated by measuring the changes of size, PDI and zeta potential within one
month. Solution appearance change such as aggregation and precipitate was also examined to determine the colloidal stability. For all the cur@star solutions, no significant variation of size, PDI and zeta potentialwas measured for at least 15 days (Fig. 2). Cur@star at 1 wt% loading showed the lowest size while cur@star at 5 wt% loading had the highest value through this period. All the samples maintained PDI lower than 0.3 which indicates that all sample solutions retained unified size distribution. For zeta potential, cur@star 3 wt% exhibited highest zeta value from the 6th day on.
However, on the 21st day of observation, aggregation in the solution of cur@star 1 wt% and 2 wt%was detected while in the solution
of cur@star 5 wt% precipitate was observed (Fig. 1B).
Colloidal stability of cur@star solution was evaluated by measuring the changes of size, PDI and zeta potential within onemonth. Solution appearance change such as aggregation and precipitate was also examined to determine the colloidal stability. For all the cur@star solutions, no significant variation of size, PDI and zeta potentialwas measured for at least 15 days (Fig. 2). Cur@star at 1 wt% loading showed the lowest size while cur@star at 5 wt% loading had the highest value through this period. All the samples maintained PDI lower than 0.3 which indicates that all sample solutions retained unified size distribution. For zeta potential, cur@star 3 wt% exhibited highest zeta value from the 6th day on.However, on the 21st day of observation, aggregation in the solution of cur@star 1 wt% and 2 wt%was detected while in the solutionof cur@star 5 wt% precipitate was observed (Fig. 1B).
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