Presentor

1
Responsive Nanopores
Ilya Zharov Department of Chemistry University of
Utah
Poster P27
2
Controlling Transport through Nanopores
Steric Mode opening/closing the pore by changing
conformation of polymers inside the pore in
response to external stimuli, e. g., temperature,
light, or binding of small molecules.
Affinity Mode controlling transport via
non-covalent interactions with receptors attached
to the pore surface
Electrostatic Mode blocking the pore to
transport of charged species by charging the pore
surface via protonation, irradiation with light,
redox processes, or metal ion binding.
3

• Current Work
• Main focus - surface-modified colloidal crystals
  as nanoporous systems with controlled molecular
  transport
• Key point - preparation and attachment of organic
  molecules to inorganic surfaces
• Applications - separations of drug and
  bio-molecules, fuel cell membranes, drug release

• Collaborations
• Silicon nitride membranes
• Glass nanopores
• Engineers, experts in biomaterials and drug
  delivery
• Publications, joint grants, start-up companies