CIC biomaGUNE
San Sebastian, Spain
Description
CIC biomaGUNE is a young and dynamic center for research on biomaterials at the highest level, which offers excellent working conditions and is well equipped with state-of-the-art instrumentation and facilities. In this project, the PhD fellow will create and characterize model systems of the nuclear pore permeability barrier using biochemical, surface science and soft matter physics methods, to better understand how macromolecules are selectively shuttled into and out of the nucleus of living cells. The nuclear pore complex (NPC) is the gateway for the transport of DNA, proteins and other macromolecules between the nucleus and the cytosol of living cells. Selective transport is afforded by a network of specialized polymers (FG-nucleoporins) that fill the 40 nm wide NPC channel. To understand how selective transport in this natural nanoscale sorting device is regulated, nanoscale model systems will be developed, in which FG-nucleoporins are re-assembled on surfaces and in artificial pores. The successful candidate will be given the opportunity to explore different methodological approaches including modern methods of surface functionalization, techniques for the nanoscale characterization of self-assembled soft matter systems (incl. QCM-D, ellipsometry, atomic force microscopy and fluorescence microscopy) and theoretical approaches for rationalizing their behavior. The results of this study may in the future be useful for the development of smart filtering devices or for biotechnological applications such as gene delivery. The PhD project is part of a broader effort in the Richter Group, funded through an ERC Starting Grant, to understand and exploit the working principles of biomolecular hydrogels. The research team is multidisciplinary. The Richter Group combines novel approaches of surface biofunctionalization and a toolbox of state-of-the-art analytical techniques to create biomimetic supramolecular architectures, for the study of fundamental biological questions and for biotechnological applications.