Alex Marras is a postdoctoral scholar at the Pritzker School of Molecular Engineering at the University of Chicago where he studies polyelectrolyte complexation with biomacromolecules in Professor Matt Tirrell's group. He serves on the User Executive Committee for the Molecular Foundry at Lawrence Berkeley National Laboratory and is the co-chair for the Self-Assembled Biomaterials session at the 2019 American Institute of Chemical Engineers meeting. Marras received his PhD from The Ohio State University working with Carlos Castro in the Department of Mechanical and Aerospace Engineering. His graduate research in structural DNA nanotechnology focused on the development of DNA-based mechanical mechanisms and methods for their rapid actuation. Marras has received multiple awards for his research accomplishments, including the Presidential Fellowship at The Ohio State University and Best Poster prize at Foundations of Nanotechnology conference.
Alex's areas of research expertise include self-assembled biomaterials, nucleic acids, structural DNA nanotechnology, and polyelectrolyte complexation with biomolecules.
Ion Specificity Influences on the Structure of Zwitterionic Brushes
Macromolecules 2023, 56, 5, 1945–1953
Sequence-Controlled Secondary Structures and Stimuli Responsiveness of Bioinspired Polyampholytes
Biomacromolecules 2022, 23, 9, 3798–3809
Harnessing the therapeutic potential of biomacromolecules through intracellular delivery of nucleic acids, peptides and proteins
Yu Tian, Matthew V. Tirrell, James L. LaBelle. "Harnessing the therapeutic potential of biomacromolecules through intracellular delivery of nucleic acids, peptides and proteins". Advanced Healthcare Materials, 2022.
Targeted polyelectrolyte complex micelles treat vascular complications in vivo
Zhengjie Zhou, Chih-Fan Yeh, Michael Mellas, Myung-Jin Oh, Jiayu Zhu, Jin Li, Ru-Ting Huang, Devin L Harrison, Tzu-Pin Shentu, David Wu, Michael Lueckheide, Lauryn Carver, Eun Ji Chung, Lorraine Leon, Kai-Chien Yang, Matthew V Tirrell, Yun Fang. "Targeted polyelectrolyte complex micelles treat vascular complications in vivo", PNAS.
Protein primary structure correlates with calcium oxalate stone matrix preference
Yu Tian, Matthew Tirrell, Carley Davis, Jeffrey A Wesson. "Protein primary structure correlates with calcium oxalate stone matrix preference". Plos One, 2021, e0257515.
Polyampholyte physics: Liquid–liquid phase separation and biological condensates
Dinic, Jelena, Amanda B. Marciel, and Matthew V. Tirrell. "Polyampholyte physics: Liquid–liquid phase separation and biological condensates." Current opinion in colloid & interface science 54 (2021): 101457.
Polymersomes Decorated with the SARS-CoV-2 Spike Protein Receptor-Binding Domain Elicit Robust Humoral and Cellular Immunity
"Polymersomes Decorated with the SARS-CoV-2 Spike Protein Receptor-Binding Domain Elicit Robust Humoral and Cellular Immunity". ACS Cent. Sci. 2021, 7, 8, 1368-1380.
Advances in the Structural Design of Polyelectrolyte Complex Micelles
Alexander E. Marras, Jeffrey M. Ting, Kaden C. Stevens, and Matthew V. Tirrell. "Advances in the Structural Design of Polyelectrolyte Complex Micelles". J. Phys. Chem. B, 2021, 125, 26, 7076-7089.
Physical Property Scaling Relationships for Polyelectrolyte Complex Micelles
Alexander E. Marras, Trinity R. Campagna, Jeffrey R. Vieregg, and Matthew V. Tirrell. "Physical Property Scaling Relationships for Polyelectrolyte Complex Micelles". Macromolecules, 2021, 54, 13, 6585-6594.
Effect of Solvent Quality on the Phase Behavior of Polyelectrolyte Complexes
Lu Li, Artem M Rumyantsev, Samanvaya Srivastava, Siqi Meng, Juan J de Pablo, Matthew V Tirrell. "Effect of Solvent Quality on the Phase Behavior of Polyelectrolyte Complexes", Macromolecules, 2020.