“…Various modification strategies to increase the cell adhesion of PLA have been reported, such as copolymerizing with other polymers (Jiao & Cui, ), plasma treatment (Khorasani, Mirzadeh, & Irani, ), chemical modification (Ma, Gao, Ji, & Shen, ), and physical adsorption (Kakinoki & Yamaoka, ). PLA nanofibers have gained attention because they can be fabricated to resemble the extracellular matrix; the cell adhesion area can also be improved by decreasing poly( l ‐lactic acid) PLLA fiber diameter (Jang, Castano, & Kim, ; Mo, Xu, Kotaki, & Ramakrishna, ; Parvathi, Krishnan, Anitha, Jayakumar, & Manitha, ). However, these modification strategies, which use plasma or solvent, may destroy the nanofiber structure.…”