THE CITY COLLEGE OF NEW YORK
CHEMICAL ENGINEERING DEPARTMENT
Professor Nurit Ashkenasy
Ben Gurion University of the Negev
Monday, January 28, 2019
Seminar will be held in MR-1307 (Marshak Building) at 2:00 PM
Reception will be held in Steinman Hall, Exhibit Room – 1st Floor
From 3:00 – 3:30 PM
Peptide Tailored Functional Surfaces
The Nobel laureate of the year 2000, Herbert Kroemer, has coined the phrase: "the interface is the device". While the work of Kromer has focused on development of heterostructures for electronic and optoelectronic devices, this concept is true for almost every working device. As a result controlling the properties of surfaces and interfaces of materials is extremely important. It has long ago been realized that the attachment of organic monolayers to surfaces is a viable approach to achieve such control. In this talk, I will demonstrate that the utilization of peptides, small bioorganic molecules that offer the diversity and multi-functionality of proteins, enables the design of highly tunable and functional surfaces, by this opening the way to the development of novel electronic devices and sensors.
Dr. Nuri Ashkenasy is Professor in the Department of Materials Engineering and the Ilse Katz Institute for Nanoscale Science and Technology at Ben-Gurion University of the Negev. Her group utilizes biological molecules for nanotechnology application, including bio-electronics, as well as advanced nanotechnology tools to fabricate electrochemical devices and sensors that aid in the understanding of biological processes.
1. M. Matmor and N. Ashkenasy, “Peptide directed growth of gold films”. J. Mater. Chem., 21, 968-974 (2011).
2. M. Matmor and N. Ashkenasy, “Modulating semiconductor surface electronic properties by inorganic peptide-binder sequence design” J. Am. Chem. Soc.134, 20403-20411 (2012).
3. Y. Liebes-Peer, H. Rapaport, and N. Ashkenasy, "Amplification of single molecule translocation signal using β-strand peptide functionalized nanopores", ACS Nano8, 6822-6832 (2014).
4. M. Matmor, G. A. Lengyel, W. S. Horne and N. Ashkenasy, "Peptide-functionalized semiconductor surfaces: strong surface electronic effects from minor alterations to backbone composition", Phys, Chem. Chem. Phys. 19, 5709-5714 (2017).