Sensitivity enhancement of optical immunosensors by the use of a surface plasmon resonance fluoroimmunoassay

Enhanced Photocurrent Generation in Self‐Assembled Monolayers Formed at Plasmonic Gold Nanostructures

“…As typical examples, electronic excitation of surfaceanchored molecules has been enhanced, as has been verified from the enhancements of fluorescence [1][2][3][4][5][6][7][8] and photocurrent [9][10][11][12] signals. Thus, SPR can offer tremendous advantages in the spectroscopic sensitivity.…”

A Surface Plasmon Resonance Biochip That Operates Both in the Angular and Wavelength Interrogation Modes

“…To minimize this effect, the biochip prisms have heated until relaxation stress temperature, about 250 • C for 24 h, and controllably cooled to room temperature, in a process called annealing. By changing the light polarization, the birefringence may prevent the existence of the SPR phenomenon [5]. As shown in Fig.…”

“…Measurement devices, based on the label-free surface plasmon resonance (SPR) principle, are well suited to monitor both, bio-molecular interactions, as well as the associated diagnostic analytics [5], [6]. The mass or concentration of a substance (sample or analyte) is optically detected through recordings of the changes at the SPR conditions [7].…”

Probing large area surface plasmon interference in thin metal films using photon scanning tunneling microscopy

“…Ritchie [2] showed theoretically in 1957 that, at the bounding surfaces of a metal, for example at the two surfaces of a thin metal film, there exist new modes of collective electron oscillations with energies different from those electrons in the bulk of the metal. Beside being a fundamental concept, these new modes called surface plasmons found many important applications due to their contribution to surface sensitivity and field enhancement [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19]. Strictly speaking, a surface plasmon is a quantum of the surface electron density wave, much in the same way as a photon is a quantum of the electromagnetic waves.…”