Crude oil fractionation by means of mesoporous polyacrylonitrile membranes - Jihoon Choi; Hyeokjun Seo; Minyong Lee; Woong-Chul Shin; Jaemin Choi; Keonwoo Choi; Min-Jun Jang; Sung Gap Im; Jae W. Lee; Ryan P. Lively; Dong-Yeun Koh (Nature, 2026)