Soft Substrates Promote Homogeneous Self-Renewal of Embryonic Stem Cells via Downregulating Cell-Matrix Tractions Chowdhury, Farhan ; Li, Yanzhen ; Poh, Yeh-Chuin ; Yokohama-Tamaki, Tamaki ; Wang, Ning ; Tanaka, Tetsuya S. Abstract Publication: PLoS ONE Pub Date: December 2010 DOI: 10.1371/journal.pone.0015655 Bibcode: 2010PLoSO...515655C