%0 Journal Article %J Biochimica et Biophysica Acta (BBA)-General Subjects %D 2020 %T Gold nanomaterials as key suppliers in biological and chemical sensing, catalysis, and medicine %A Falahati, M. %A Attar, F. %A Sharifi, M. %A Saboury, A.A. %A Salihi, A. %A Aziz, F.M. %A Kostova, I. %A Burda, C. %A Priecel, P. %A Lopez-Sanchez, J.A. %A Laurent, S. %A Hooshmand, N. %A El-Sayed, M.A. %B Biochimica et Biophysica Acta (BBA)-General Subjects %G eng %0 Journal Article %J The Journal of Physical Chemistry C %D 2020 %T Observation of Photoinduced Proton Transfer between the Titania Surface and Dye Molecule %A Nishikiori, H. %A Kondo, H. %A Kageshima, Y. %A Hooshmand, N. %A Panikkanvalappil, S. R. %A Valverde-Chávez, D.A. %A Silva, C. %A El-Sayed, M.A. %A Teshima,K. %B The Journal of Physical Chemistry C %G eng %0 Journal Article %J Talanta %D 2020 %T Plasmonic and chiroplasmonic nanobiosensors based on gold nanoparticles %A Sharifi, M. %A Hosseinali, S.H. %A Alizadeh, R.H. %A Hasan, A. %A Attar, F. %A Salihi, A. %A Shekha, M.S. %A Amen, K.M. %A Aziz, F.M. %A Saboury, A.A. %A Akhtari, K. %A Taghizadeh, A. %A Hooshmand, N. %A El-Sayed, M. A. %A Falahati, M. %B Talanta %G eng %0 Journal Article %J Proceedings of the National Academy of Sciences %D 2019 %T Collective multipole oscillations direct the plasmonic coupling at the nanojunction interfaces %A Hooshmand, N. %A El-Sayed, M.A. %B Proceedings of the National Academy of Sciences %G eng %0 Journal Article %J Chemical Science %D 2019 %T Monitoring the dynamics of hemeoxygenase-1 activation in head and neck cancer cells in real-time using plasmonically enhanced Raman spectroscopy %A Panikkanvalappil, S. R. %A Garlapati, C. %A Hooshmand, N. %A Aneja, R. %A El-Sayed, M. A. %B Chemical Science %G eng %0 Journal Article %J Journal of Controlled Release %D 2019 %T Plasmonic gold nanoparticles: Optical manipulation, imaging, drug delivery and therapy %A Sharifi, M. %A Attar, F. %A Saboury, A.A. %A Akhtari, K. %A Hooshmand, N. %A Hasan, A. %A El-Sayed, M.A. %A Falahati, M. %B Journal of Controlled Release %G eng %0 Journal Article %J Journal of Physical Chemistry C %D 2016 %T Effects of the substrate refractive index, the exciting light propagation direction, and the relative cube orientation on the plasmonic coupling behavior of two silver nanocubes at different separations %A Hooshmand, N. %A et al. %B Journal of Physical Chemistry C %G eng %0 Journal Article %J Journal of Physical Chemistry Letters %D 2011 %T Plasmonic Spheroidal Metal Nanoshells Showing Larger Tunability and Stronger Near Fields Than Their Spherical Counterparts: An Effect of Enhanced Plasmon Coupling %A Hooshmand, N. %A Jain, Prashant K %A El-Sayed, Mostafa A %X Two of the most tunable nanostructure geometries for nanoplas monics include the metal nanoshell structure and the spheroidal geometry. We systematically investigate the effect of combining both geometries within the same nanostructure. Localized surface plasmon resonances (LSPRs) of spheroidal gold nanoshells are simulated as a function of their aspect ratio. The long-axis LSPR mode of a spheroidal nanoshell red shifts with decreasing shell thickness, similar to a spherical nanoshell. A higher aspect ratio spheroidal nanoshell shows a larger fractional LSPR red shift for the same thickness normalized by core dimensions. This is because coupling between the inner and outer surface plasmons of the nanoshell is stronger for the elongated spheroidal geometry as compared to that for the spherical case, increasing in strength with increasing aspect ratio. It is the result of this enhanced plasmon coupling that spheroidal nanoshells of aspect ratio 4 are over two times more tunable than spherical nanoshells. Also, the plasmonic field enhancement is an order of magnitude larger for the spheroidal nanoshells of aspect ratio 4 as compared to spherical nanoshells. These effects observed in the spheroidal nanoshell are analogous to those in a dimer of spheroidal nanopatides. %B Journal of Physical Chemistry Letters %V 2 %P 374-378 %8 Mar %@ 1948-7185 %G eng %M WOS:000288053900006 %R 10.1021/jz200034j