Dec 5, 2024
2:00pm - 2:15pm
Hynes, Level 1, Room 103
Gal Finkelstein-Zuta1,Zohar Arnon1,2,Thangavel Vijayakanth1,Or Messer1,Orr Lusky1,Avital Wagner3,Galit Zilberman1,Ruth Aizen1,Lior Michaeli4,Sigal Rencus-Lazar1,Sharon Gilead1,Sudha Shankar1,Mariela Jorgelina Pavan3,Dor Aaron Goldstein1,Shira Kutchinsky1,Tal Ellenbogen1,Benjamin Palmer3,Amir Goldbourt1,Maxim Sokol1,Ehud Gazit1
Tel Aviv University1,Columbia University2,Ben-Gurion University of the Negev3,California Institute of Technology4
Gal Finkelstein-Zuta1,Zohar Arnon1,2,Thangavel Vijayakanth1,Or Messer1,Orr Lusky1,Avital Wagner3,Galit Zilberman1,Ruth Aizen1,Lior Michaeli4,Sigal Rencus-Lazar1,Sharon Gilead1,Sudha Shankar1,Mariela Jorgelina Pavan3,Dor Aaron Goldstein1,Shira Kutchinsky1,Tal Ellenbogen1,Benjamin Palmer3,Amir Goldbourt1,Maxim Sokol1,Ehud Gazit1
Tel Aviv University1,Columbia University2,Ben-Gurion University of the Negev3,California Institute of Technology4
Despite its disordered liquid-like structure, glass exhibits solid-like mechanical
properties. The formation of glassy material occurs by vitrification, preventing
crystallization and promoting an amorphous structure. Glass is fundamental in
diverse fields of materials science, owing to its unique optical, chemical and mechanical properties as well as durability, versatility and environmental sustainability. However, engineering a glassy material without compromising its properties is challenging.
Here we report the discovery of a supramolecular amorphous glass formed by the
spontaneous self-organization of the short aromatic tripeptide YYY initiated by
non-covalent cross-linking with structural water. This system uniquely combines
often contradictory sets of properties; it is highly rigid yet can undergo complete
self-healing at room temperature. Moreover, the supramolecular glass is an extremely strong adhesive yet it is transparent in a wide spectral range from visible to midinfrared.
This exceptional set of characteristics is observed in a simple bioorganic
peptide glass composed of natural amino acids, presenting a multi-functional material that could be highly advantageous for various applications in science and engineering.