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dc.creatorJokić, Ivana
dc.creatorĐurić, Zoran G.
dc.creatorRadulović, Katarina
dc.creatorFrantlović, Miloš
dc.date.accessioned2018-07-25T12:53:02Z
dc.date.available2018-07-25T12:53:02Z
dc.date.issued2015
dc.identifier.issn1451-9372 (Print)
dc.identifier.issn2217-7434 (Online)
dc.identifier.urihttp://dais.sanu.ac.rs/123456789/3538
dc.description.abstractA theoretical model of fluctuations of the number of adsorbed micro/nanoparticles in environmental sensors operating in air and liquids is presented, taking into account the effects of the mass transfer processes of the target particles in a sensor reaction chamber. The expressions for the total power of the corresponding adsorption-desorption noise, and for the corresponding signal-to-noise ratio are also derived. The presented analysis shows that the transfer processes can have a significant influence on the sensors limiting performance. The influence on both the fluctuations spectrum and the signal-to-noise ratio is estimated at different values of target particles concentration, functionalization sites surface density, and adsorption and desorption rate constants (the values are chosen from the ranges corresponding to real conditions). The analysis provides the guidelines for optimization of sensor design and operating conditions for the given target substance and sensor functionalization, in order to decrease the influence of the mass transfer, thus improving the ultimate performance (e.g., minimal detectable signal, signal-to-noise ratio) of sensors for particle detection. The calculations we performed show that it is possible to increase the signal-to-noise ratio for as much as two orders of magnitude by using optimization that eliminates the mass transfer influence. © 2015, CI and CEQ. All Rights Reserved.
dc.publisherBelgrade: Association of the Chemical Engineers of Serbia
dc.relationinfo:eu-repo/grantAgreement/MESTD/Technological Development (TD or TR)/32008/RS//
dc.relationSerbian Academy of Sciences and Arts, Project F-150
dc.rightsopenAccess
dc.sourceChemical Industry and Chemical Engineering Quarterly
dc.subjectadsorption-based sensors
dc.subjectenvironmental sensors
dc.subjectmass transfer
dc.subjectmicroparticles
dc.subjectsignal-to-noise ratio
dc.subjectnanoparticles
dc.titleFluctuations of the number of adsorbed micro/nanoparticles in sensors for measurement of particle concentration in air and liquid environments
dc.typearticleen
dc.rights.licenseBY-NC-ND
dcterms.abstractЈокић, Ивана; Ђурић, Зоран; Радуловић, Катарина; Франтловић, Милош;
dc.citation.spage141
dc.citation.epage147
dc.citation.volume21
dc.citation.issue1-2
dc.identifier.wos000354755600001
dc.identifier.doi10.2298/CICEQ140219011J
dc.identifier.scopus2-s2.0-84928942826
dc.type.versionpublishedVersion
dc.identifier.fulltexthttp://dais.sanu.ac.rs/bitstream/handle/123456789/3538/Jokic_2015_Chemical-Industry-and-Chemical-Engineering-Quarterly_21_141.pdf


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