N. A. Brazhe, E. Y. Parshina, V. V. Khabatova, A. A. Semenova, A. R. Brazhe, A. I. Yusipovich, A. S. Sarycheva, A. A. Churin, E. A. Goodilin, G. V. Maksimov and O. V. Sosnovtseva Tuning SERS for living erythrocytes: Focus on nanoparticle size and plasmon resonance position Journal of Raman Spectroscopy 44
Version of Record online: 2 MAR 2013 | DOI: 10.1002/jrs.4274
We designed SERS experiments on living erythrocytes to estimate dependence of the enhancement factor for main Raman bands of submembrane hemoglobin (Hbsm) on properties of silver nanoparticles (AgNP). We show that the enhancement of Hbsm Raman scattering increases with the decrease in AgNP size and plasmon resonance shift to shorter wavelengths. The results can be explained the ability of smaller AgNPs to get deeper into nano-invaginations of the plasma membrane than larger AgNPs.
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