A Molecular Magnet Confined in the Nanocage of a Globular Protein

Mitra RK, Verma PK, Wulferding D, Menzel D, Mitra T, Todea AM, Lemmens P, Müller A, Pal SK (2010)
CHEMPHYSCHEM 11(2): 389-393.

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Abstract
The effect of confinement and energy transfer on the dynamics of a molecular magnet, known as a model system to study quantum coherence, is investigated. For this purpose the well-known polyoxovanadate [V15As6O42(H2O)](6-) (V-15) is incorporated into a protein (human serum albumin, HSA) cavity. Due to a huge overlap of the optical absorption spectrum of V, with the emission spectrum of a fluorescence center of HSA (containing a single tryptophan residue), energy transfer is induced and probed by steady-state and time-resolved fluorescence. The geometrical coordination and the distance of the confined V-15 to the tryptophan moiety of HSA are investigated at various temperatures. This effect is used as a local probe for the thermal denaturation of the protein at elevated temperatures.
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Mitra RK, Verma PK, Wulferding D, et al. A Molecular Magnet Confined in the Nanocage of a Globular Protein. CHEMPHYSCHEM. 2010;11(2):389-393.
Mitra, R. K., Verma, P. K., Wulferding, D., Menzel, D., Mitra, T., Todea, A. M., Lemmens, P., et al. (2010). A Molecular Magnet Confined in the Nanocage of a Globular Protein. CHEMPHYSCHEM, 11(2), 389-393.
Mitra, R. K., Verma, P. K., Wulferding, D., Menzel, D., Mitra, T., Todea, A. M., Lemmens, P., Müller, A., and Pal, S. K. (2010). A Molecular Magnet Confined in the Nanocage of a Globular Protein. CHEMPHYSCHEM 11, 389-393.
Mitra, R.K., et al., 2010. A Molecular Magnet Confined in the Nanocage of a Globular Protein. CHEMPHYSCHEM, 11(2), p 389-393.
R.K. Mitra, et al., “A Molecular Magnet Confined in the Nanocage of a Globular Protein”, CHEMPHYSCHEM, vol. 11, 2010, pp. 389-393.
Mitra, R.K., Verma, P.K., Wulferding, D., Menzel, D., Mitra, T., Todea, A.M., Lemmens, P., Müller, A., Pal, S.K.: A Molecular Magnet Confined in the Nanocage of a Globular Protein. CHEMPHYSCHEM. 11, 389-393 (2010).
Mitra, Rajib K., Verma, Pramod K., Wulferding, Dirk, Menzel, Dirk, Mitra, Tamoghna, Todea, Ana Maria, Lemmens, Peter, Müller, Achim, and Pal, Samir K. “A Molecular Magnet Confined in the Nanocage of a Globular Protein”. CHEMPHYSCHEM 11.2 (2010): 389-393.
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