Abstract 23: Ultrasound-mediated on-demand release from ionically cross-linked hydrogel. Issue 4 (April 2017) - Feturi, Firuz G.; Wang, Hua; Brudno, Yevgeny; Erbas, Vasil; Dong, Liwei; Sahin, Huseyin; Zhang, Zhaoxiang; Aral, Ali M.; Zhang, Wensheng; Venkataramanan, Raman; Mooney, David J.; Gorantla, Vijay S.