Figure 4.

Illustration of the strategy for the preparation of ACP/PLA-mPEG hybrid nanoparticles and ACP porous nanospheres: (a) Chemical structure of PLA-mPEG and (b) the proposed formation mechanism of ACP/PLA-mPEG hybrid nanoparticles and ACP porous nanospheres.

Chen et al. Nanoscale Research Letters 2011 6:67   doi:10.1186/1556-276X-6-67
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