Ion Track Technology

PhysicsConsult

Reimar Spohr

PostHeaderIcon Abstract

Thermal switching of grafted single ion track tracks. N. Reber, H. Omichi, R. Spohr, M. Tamada, A. Wolf, M. Yoshida. Nucl. Instrum. Methods Phys. Res., Sect. B (1995), 105(1-4), 275-7

Thermal response of crosslinked poly(N-isopropylacrylamide) (NIPAAm) gel grafted on a single ion track in poly (ethylene terephthalate) (PET) was investigated using elec. cond. The graft layer shrank above 31° resulting in an increase of current through the pore. The technique enables detailed swelling and shrinking studies in grafted single-ion tracks including a precise detn. of vol. phase transition temps. In this way a basis for expts. with large org. mols. relevant to drug release is established.