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dc.creatorJokić, Ivana
dc.creatorJakšić, Olga
dc.date.accessioned2019-01-30T17:48:25Z
dc.date.available2019-01-30T17:48:25Z
dc.date.issued2016
dc.identifier.issn0306-8919
dc.identifier.urihttp://cer.ihtm.bg.ac.rs/handle/123456789/1856
dc.description.abstractIn adsorption-based chemical and biological refractometric sensors the dependence of the refractive index of the sensing area on the number of adsorbed particles is used for detection and quantification of analytes. We perform stochastic analysis of equilibrium fluctuations of the adsorbed particles number for monolayer adsorption using a nonlinear second-order model. We derive an analytical expression for the power spectral density (PSD) of the refractive index change fluctuations. Our theory is applicable to sensors operating in closed volume systems with spatially uniform analyte concentration. Our analysis of fluctuations in a benzene sensor shows a significant difference between the PSD according to the derived expression and the PSD obtained by the linear adsorption model, especially for very low amounts of analyte. The developed theory is valid in a wider range of pressures and temperatures. Since signal fluctuations determine the detection limit, the presented theoretical model is applicable as a tool for the design, optimization and characterization of practical adsorption-based refractometric sensors.en
dc.publisherSpringer, Dordrecht
dc.relationinfo:eu-repo/grantAgreement/MESTD/Technological Development (TD or TR)/32008/RS//
dc.rightsrestrictedAccess
dc.sourceOptical and Quantum Electronics
dc.subjectAdsorption-desorption noiseen
dc.subjectEquilibrium fluctuationsen
dc.subjectPlasmonic sensoren
dc.subjectStochastic analysisen
dc.titleA second-order nonlinear model of monolayer adsorption in refractometric chemical sensors and biosensors case of equilibrium fluctuationsen
dc.typearticle
dc.rights.licenseARR
dcterms.abstractЈакшић, Олга; Јокић, Ивана;
dc.citation.volume48
dc.citation.issue7
dc.citation.other48(7):
dc.citation.rankM23
dc.identifier.doi10.1007/s11082-016-0620-0
dc.identifier.rcubConv_3559
dc.identifier.scopus2-s2.0-84975744268
dc.identifier.wos000379174800009
dc.type.versionpublishedVersion


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