Slaven GARAJ

PhD in Physics, Ecole Polytechnique Federale de Lausanne, Switzerland

Assistant Professor
Office : S13-02-04  |  Tel : (65) 6516 2164
Email : phygara or slaven@nus.edu.sg

Current Research

Prof. Garaj explores nanoscale phenomena emerging at the interface of solid-state devices and soft-matter systems. He is interested in behaviour of water molecules and ions in atomic-scale confinements; control and analysis of individual biomolecules using physical methods; and electrical and structural properties of 2D materials. The research is often guided by the desire to address a real technological challenge, and it includes:

  • Ultra-fast, inexpensive DNA sequencing using physical methods.
  • Nanopore devices for detection, fingerprinting and sequencing of individual proteins.
  • Electrical sensors based on 2D materials.
  • 2D materials as next-generation membranes for filtration and water desalination.

Ionic selectivity in graphene-based capillaries of 1.2 nm in height, as a function of ions charge and size. We determined two physical mechanisms determining the flow of ions: activate size-rejection, and charge separation (doi:10.1021/acs.nanolett.6b03837).

Selected Publications

  1. S. Hong et al., “Scalable Graphene-Based Membranes for Ionic Sieving with Ultrahigh Charge Selectivity”, Nano Letters 17, 728 (2017)

  2. K. Bogaert et al., “Diffusion-Mediated Synthesis of MoS2/WS2 Lateral Heterostructures”, Nano Letters 16, 5129 (2016).

  3. B. Radha et al., “Molecular transport through capillaries made with atomic-scale precision”, Nature 538, 222 (2016).

  4. S. Garaj et al., “Molecule-hugging graphene nanopores”, Proc. Natl. Acad. Sci. U.S.A. 110, 12192 (2013).

  5. S. Garaj et al., “Graphene as a subnanometre trans-electrode membrane”, Nature 467, 190 (2010).

  6. D. Branton et al., “The potential and challenges of nanopore sequencing”, Nat. Biotechnol. 26, 1146 (2008).

Affiliations & Links