Chitosan-based nanofibrous membranes for antibacterial filter applications

► Chitosan-PCL nanofibers exhibit antibacterial activity based on chitosan content. ► Chitosan-PCL nanofibrous membranes facilitated high fluid flux. ► The membranes successfully removed 300-nm diameter particles from solution. ► The chitosan-PCL nanofibers can potentially serve as antibacterial pre-filter for microfiltration.