according to circumstance of kerman sarcheshmeh cooper complex that its anode slime is mainly consisted of cu, ag, au, pb and se. in this work, recovery of silver from anode slime and subsequent synthesis of silver nanoparticles from leaching solution was made. silver was separated from anode slime by using of hno3 and hcl. x-ray fluorescence spectroscopy (xrf) was used to characterize anode sl...

Surface plasmon resonance (SPR) is a powerful label-free diagnostic tool to study biomolecular interactions. However, one of the drawbacks of SPR is the lack of controlled immobilization of ligands on the sensor surface. We have developed a modular platform for the fast, reagent-free and site-specific immobilization of azide-containing ligands by strain-promoted cycloaddition onto a cyclooctyne...

We fabricated a surface plasmon resonance (SPR) sensor using a hydrophilic polymer for the highly sensitive detection of 2,4,6-trinitrotoluene (TNT). The hydrophilic polymer was made from mono-2-(methacryloyloxy)ethylsuccinate (MES) and 2-hydroxyethylmethacrylate (HEMA) by surface-initiated atom transfer radical polymerization. The detection of TNT was carried out by displacement assay with the...

The effects of the temperature on surface plasmon resonance (SPR) in noble metal nanoparticles at various temperatures ranging from 77 to 1190 K are reviewed. A increase results an appreciable red shift and leads a broadening SPR (NPs). This observed thermal expansion along with electron-phonon scattering rate rising emerge as dominant physical mechanisms producing SPR. Strong dependence enhanc...

In this paper, the temperature dependence on optical absorption cross section of the core shell bimetallic nanoparticles (NPs) is investigated in quasi static approximation. Temperature dependence of the plasmon resonance is important issue because of recent applications of NPs of noble metal for heat treating of cancer and the computer chips. The effect of temperature on surface plasmon resona...

Among the various sensing principles proposed for bioaffinity studies, optical evanescent wave techniques have gained the lead in popularity. Next to evanescent ellipsometry [1] and the various optical waveguide platforms [2,3], surface plasmon resonance (SPR) spectroscopy [4–6], in particular, has found widespread applications and has demonstrated its potential for the sensitive detection of b...

A novel optical fiber having its cladding doped with Au nano-particles was developed by modified chemical vapor deposition process. Absorption peaks of the optical fiber preform and the fiber appearing at 585 nm and 428 nm, respectively were due to surface plasmon resonance (SPR) of the incorporated Au nano-particles in the cladding. The measured peak wavelength of the SPR was found to increase...

INTRODUCTION Various optical measurement techniques have been developed for the characterization of surface states during electrochemical processes. Surface plasmon resonance (SPR) spectroscopy has been used in combination with electrochemistry to investigate the electronic structure of metal-electrolyte interfaces [1]. We reported the current efficiency of refractive index changes that occurre...

In this article a study of surface plasmon resonance (SPR) is presented using a diffraction grating to couple light on the dielectric–metal interface. A polycarbonate surface relief gratings obtained from commercially available DVD-R stampers are used as substrates and are subsequently coated with silver and gold thin films (with physical thickness d = 15-25 nm) . The presence of SPR is experim...