Carrier-mediated photodiffusion membranes

Science. 1977 Sep 16;197(4309):1177-9. doi: 10.1126/science.897659.

Abstract

Reversible photochromic reactions can be coupled to carrier-mediated transport processes in membranes to bring about the separation or concentration of selected permeants. Carbon monoxide has been pumped against of fourfold concentration gradient by differentially illuminating a hemoglobin membrane. The extent of concentration of photochromic ligands increases with light intensity and is reversible. Nonphotochemically sensitive ligands can also be transported by coupling with phostosensitive carrier-mediated systems.

Publication types

  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Biological Transport
  • Carbon Monoxide / blood
  • Diffusion
  • Hemoglobins / metabolism
  • In Vitro Techniques
  • Kinetics
  • Membranes / metabolism*
  • Membranes, Artificial
  • Myoglobin / metabolism
  • Oxygen / blood
  • Photochemistry

Substances

  • Hemoglobins
  • Membranes, Artificial
  • Myoglobin
  • Carbon Monoxide
  • Oxygen