000167852 001__ 167852
000167852 005__ 20260121151419.0
000167852 0247_ $$2doi$$a10.1016/j.snb.2013.12.076
000167852 0248_ $$2sideral$$a85289
000167852 037__ $$aART-2014-85289
000167852 041__ $$aeng
000167852 100__ $$aGómez-De Pedro, S.
000167852 245__ $$aOptical microfluidic system based on ionophore modified gold nanoparticles for the continuous monitoring of mercuric ion
000167852 260__ $$c2014
000167852 5060_ $$aAccess copy available to the general public$$fUnrestricted
000167852 5203_ $$aAn optical microfluidic system based on the use of modified gold nanoparticles for monitoring Hg(II) is presented. The system is based on the specific recognition of the heavy metal by a new synthesized ionophore based on a modified thiourea, which is attached to the gold nanoparticles. This interaction generates a change on the gold Surface Plasmon Resonance (SPR) band. The sensitivity and selectivity of the procedure is firstly studied in batch. The obtained results demonstrate the mercury selective response over the different tested ions that can be found in environmental water samples. Due to the remarkable unusual rapid signal change observed during the interaction of the metal and the modified gold nanoparticles, the reaction can be easily performed in a microfluidic system. Results obtained by using the microfluidic system revealed improved analytical features compared to batch experiments such as a lower detection limit (11 ppb), higher sensitivity and faster analysis time, all this with an easy and automated procedure. Therefore, the approach has shown great potential for designing low cost instrumentation for automatic in-field discrete or continuous measurements of Hg(II).
000167852 536__ $$9info:eu-repo/grantAgreement/ES/MICINN/CTQ2009-12128$$9info:eu-repo/grantAgreement/ES/MICINN/CTQ2012-36165
000167852 540__ $$9info:eu-repo/semantics/openAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/
000167852 590__ $$a4.097$$b2014
000167852 591__ $$aCHEMISTRY, ANALYTICAL$$b8 / 74 = 0.108$$c2014$$dQ1$$eT1
000167852 591__ $$aINSTRUMENTS & INSTRUMENTATION$$b3 / 56 = 0.054$$c2014$$dQ1$$eT1
000167852 591__ $$aELECTROCHEMISTRY$$b6 / 27 = 0.222$$c2014$$dQ1$$eT1
000167852 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000167852 700__ $$aLopes, D.
000167852 700__ $$aMiltsov, S.
000167852 700__ $$0(orcid)0000-0002-4746-3139$$aIzquierdo, D.
000167852 700__ $$aAlonso-Chamarro, J.
000167852 700__ $$aPuyol, M.
000167852 773__ $$g194 (2014), 19-26$$pSens. actuators, B, Chem.$$tSENSORS AND ACTUATORS B-CHEMICAL$$x0925-4005
000167852 8564_ $$s1814989$$uhttps://zaguan.unizar.es/record/167852/files/texto_completo.pdf$$yVersión publicada
000167852 8564_ $$s2983357$$uhttps://zaguan.unizar.es/record/167852/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000167852 909CO $$ooai:zaguan.unizar.es:167852$$particulos$$pdriver
000167852 951__ $$a2026-01-21-14:54:54
000167852 980__ $$aARTICLE