A Molecular Magnet Confined in the Nanocage of a Globular Protein (pages 389–393)
Rajib K. Mitra, Pramod K. Verma, Dirk Wulferding, Dirk Menzel, Tamoghna Mitra, Ana M. Todea, Peter Lemmens, Achim Müller and Samir K. Pal
Version of Record online: 18 DEC 2009 | DOI: 10.1002/cphc.200900708
Confined spaces: The complexation and confinement of [V15As6O42(H2O)]−6 (V15) in the cavity of human serum albumin (HSA) leads to enhanced stability without perturbing the magnetic properties of V15 or the tertiary structure of the protein. Resonance energy transfer via excited-state dipole–dipole interaction is probed by steady-state and time-resolved fluorescence spectroscopy of the HSA (see picture).