Results 161 to 170 of about 50,420 (198)
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Variable wavelength surface plasmon resonance (SPR) in biosensing
Biosystems, 2009In this study, we fabricated a novel variable wavelength surface plasmon resonance (SPR) sensor, which detects resonance conditions such as a maximum attenuation wavelength, measuring change of microscopic refractive index. Such a change was measured to detect a salmonella antigen-antibody reaction and a penicillinase-penicillin reaction.
Nyeon-Sik Eum +6 more
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Application of chromogenic reagents in surface plasmon resonance (SPR)
Biosensors and Bioelectronics, 2007In this paper, a new simple approach for sensitivity optimization in surface plasmon resonance (SPR) chemosensors based on colorimetric ligands is presented. A new design of SPR sensor with tunable analytical wavelength (lambda(SPR)) was constructed for this purpose, to perform studies on the ligand absorbance spectra related sensitivity enhancement ...
Jan, Mavri +2 more
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Gold-nanoshells as surface plasmon resonance (SPR)
SPIE Proceedings, 2015Coreshell plasmonic nanoparticles (CS) are a class of nanoparticles that exhibit optical absorption in the near IR regime and have potential biomedical applications in imaging, therapy and sensing. We present our preliminary investigation on the applications of CS as a surface plasmon based sensor to study the functional properties of human blood.
K. Sathiyamoorthy, Michael C. Kolios
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A rapid method for detection of PrP by surface plasmon resonance (SPR)
Archives of Virology, 2009Surface plasmon resonance was used to develop a rapid, label-free and sensitive immunoassay for detection of Prion protein (PrP). Anti-PrP monoclonal antibodies immobilized on the biosensor surface were allowed to bind various concentrations of cellular prion protein (PrP(C)), followed by a pulse with additional soluble anti-PrP polyclonal antibodies ...
Wan, Jiayu +8 more
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Surface Plasmon Resonance (SPR) as a Tool for Antibody Conjugate Analysis
Bioconjugate Chemistry, 1999Surface plasmon resonance (SPR) analysis was used to assess the immunoreactivity of anti-biotin (4) and anti-fluorescein (5) monoclonal antibody after conjugation with the N-hydroxysuccinimide ester of acridinium-9-carboxamide 1. Only minor changes in the apparent equilibrium dissociation constants of the antibody conjugates for their ligands resulted ...
M, Adamczyk +3 more
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Surface plasmon resonance (SPR) as a rapid tool for serotyping of Salmonella
Biosensors and Bioelectronics, 2010An SPR-based sandwich immunoassay for serotyping of Salmonella is demonstrated. The Salmonella are captured on an SPR chip using polyclonal capture antibody. SPR sensorgrams are obtained for the immunoreactions of the somatic (O) and flagellar (H) surface antigens, of the captured bacteria, to their respective antibodies.
Saikat Datta, Mazumdar +3 more
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Surface Plasmon Resonance (SPR) Sensors
20064 Main Performance Characteristics of SPR Sensors . . . . . . . . . . . . . . 49 4.1 Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 4.1.1 Sensitivity of SPR Sensors with Angular Modulation . . . . . . . . . . . . . 52 4.1.2 Sensitivity of SPR Sensors with Wavelength Modulation . . . . . . . . . . .
Jiří Homola, Marek Piliarik
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Evaluation of Surface Plasmon Resonance (SPR) for Heparin Assay
Journal of Colloid and Interface Science, 1997The concentration of heparin, an anticoagulant in blood, is usually inferred from clotting type assay, which determines a parameter related to the heparin activity. Because of the heterogeneity of heparin, however, it is desirable to monitor the absolute concentration of heparin directly in the clinical range of 0-2 U/ml. Surface plasmon resonance (SPR)
, Gaus, , Hall
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Sensitivity comparison of surface plasmon resonance (SPR) and magneto-optic SPR biosensors
The European Physical Journal Plus, 2019Sensitivity of a biosensor is one of the most important parameters that determines its performance. It depends on many factors, such as excitation wavelength of incident optical radiation (\( \lambda\) , composition, type, and thickness of the ferromagnetic Co layer ( \( t_{\rm Co}\) , plasmonic Au, and high refractory metal, Ti, involved, and sensing ...
Conrad Rizal, Vladimir Belotelov
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Electrochemical surface plasmon resonance (EC-SPR) aptasensor for ampicillin detection
Analytical and Bioanalytical Chemistry, 2019Surface plasmon resonance technique is highly sensitive to various processes taking place on a metal film and it has emerged as a powerful label-free method to study molecular binding processes taking place on a surface. Another important but less explored area of applications is the use of hybrid methods which combine electrochemistry with optical ...
Adrian, Blidar +4 more
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