“…There are some scientific literature works with reviews of inertial microfluidics ( Amini et al, 2014 ; Shi, 2023 ), non-Newtonian microfluidics ( Yuan et al, 2018 ), sheath-assisted focusing ( Lu et al, 2016 ), secondary flow in inertial microfluidics ( Zhao et al, 2020 ), sub-micrometer particle focusing ( Zhang et al, 2020 ), channel innovations for inertial microfluidics ( Tang et al, 2020 ), passive microfluidic separation and sorting ( Bayareh, 2020 ), passive microfluidic driving method ( Narayanamurthy et al, 2020 ), and inertial microfluidic separation ( Xu et al, 2021 ). This review summarizes polymeric particles’ sheathless inertial focusing in microfluidic devices.…”