Tadahiko MORINAGA,Tatsuru MORITANI,Tatsuki YAMAGUCHI,Masaru OHGAKI,Shinji AOKI,Yuichi SATO
申请号：
US15704106
公开号：
US20180085314A1
申请日:
2017.09.14
申请国别(地区):
US
年份:
2018
代理人:
摘要：
A particulate poly(lactic-co-glycolic) acid (PLGA) is provided. The particulate PLGA comprises a poly(lactic-co-glycolic) acid (PLGA), and has an average volume-based particle diameter of 80 nm or less and a relative span factor (R.S.F.) satisfying the following formula (1):0<；R.S.F.≦1.20 Formula (1)where R.S.F. is defined by (D90−D10)/D50, where D90, D50, and D10 respectively represent particle diameters at cumulative rates of 90%, 50%, and 10% by volume based on a cumulative particle size distribution counted from a small-particle side.
