Controlled Release of Doxorubicin from Doxorubicin/𝛾-Polyglutamic Acid Ionic Complex

Table 1

Complexation efficiencies for DOX/𝛾-PGA complexes formed by mixing DOX and PGA in different weight ratios (𝑛 = 3).

DOX : 𝛾-PGA ratio (w/w)	Complexation efficiency (%)	Aqueous solubility
1 : 100	99 ± 0.89	Soluble
1 : 50	99.3 ± 1.2	Soluble
1 : 10	99.7 ± 2.65	Soluble
1 : 1	99.1 ± 0.6	Precipitate
2 : 1	95.4 ± 4.1	Precipitate
3 : 1	96 ± 6.5	Precipitate