“…Compared with natural polymers, the properties and functions of synthetic biodegradable polymers are more predictable (Panchal & Vasava, 2020 ). PLGA, as a synthetic polymer, is one of the most widely used drug delivery carrier (Zeng et al, 2013 ; Cheng et al, 2018 ; Shi et al, 2020 ), which can transport proteins (Xu et al, 2020 ; Zhai et al, 2020 ), peptides (Cai et al, 2019 ; Zhang et al, 2020 ; Jin et al, 2021 ), bacterial or viral DNA (Koerner et al, 2019 ; Lu et al, 2020 ), and various anticancer drugs (Lee et al, 2018 ; Shakeri et al, 2020 ). PLGA is synthesized by random polymerization of lactic acid (LA) and glycolic acid (GA), which has good biocompatibility and biodegradability (Peng et al, 2018 ; Ma et al, 2020 ).…”