Heavy metal adsorption onto graphene oxide, amino group on magnetic nanoadsorbents and application for detection of Pb(II) by strip sensor

Paper-based lateral flow immunoassays (LFIAs) are an interesting on site technique for detecting heavy metals. Pb(II) is one of the toxic heavy metals in polluted environmental water. This paper reports the synthesis and characterization of three Fe3O4-based nanoadsorbents that show different perfor...

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Autores principales:	Menglu Sun, Peng Li, Xuexue Jin, Xingrong Ju, Wenjing Yan, Jian Yuan, Changrui Xing
Formato:	article
Lenguaje:	EN
Publicado:	Taylor & Francis Group 2018
Materias:	magnetic nanoadsorbents fe3o4@nh2-based lfia pb(ii) detecting Agriculture (General) S1-972 Immunologic diseases. Allergy RC581-607
Acceso en línea:	https://doaj.org/article/13030e9d06d4498a955c99aee7bdc044
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spelling	oai:doaj.org-article:13030e9d06d4498a955c99aee7bdc0442021-11-26T11:19:47ZHeavy metal adsorption onto graphene oxide, amino group on magnetic nanoadsorbents and application for detection of Pb(II) by strip sensor0954-01051465-344310.1080/09540105.2018.1509946https://doaj.org/article/13030e9d06d4498a955c99aee7bdc0442018-01-01T00:00:00Zhttp://dx.doi.org/10.1080/09540105.2018.1509946https://doaj.org/toc/0954-0105https://doaj.org/toc/1465-3443Paper-based lateral flow immunoassays (LFIAs) are an interesting on site technique for detecting heavy metals. Pb(II) is one of the toxic heavy metals in polluted environmental water. This paper reports the synthesis and characterization of three Fe3O4-based nanoadsorbents that show different performance to Pb(II), Cu(II), Cd(II), Hg(II), As(V), Zn(II), Fe(III), Ca(II), Mg(II), Mn(II), and Al(III) when a GO or an amino group is introduced. Compared with Fe3O4, Fe3O4-GO showed higher adsorption percentage to many heavy metal ions under slightly acid condition. The negative surface on Fe3O4@NH2 had favourable interactions for four main divalent metal ion adsorption, which followed the order: Pb(II) > Cu(II) > Hg(II) > Cd(II). Combined with antibody-functionalized AuNPs showed high affinity and specificity toward Pb(II), an Fe3O4@NH2-based LFIA with five times greater sensitivity for detecting Pb(II) in lake water was developed. The cut-off value of this Fe3O4@NH2-combined LFIA method for detection Pb(II) in lake water was 20 ng/mL and the detection result for 10 ng/mL Pb(II) was obviously observable by the naked eye or a strip reader machine. This detection strategy could be readily adapted for other small molecules or biomolecules as an ultrasensitive screening tool.Menglu SunPeng LiXuexue JinXingrong JuWenjing YanJian YuanChangrui XingTaylor & Francis Grouparticlemagnetic nanoadsorbentsfe3o4@nh2-based lfiapb(ii) detectingAgriculture (General)S1-972Immunologic diseases. AllergyRC581-607ENFood and Agricultural Immunology, Vol 29, Iss 1, Pp 1053-1073 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	magnetic nanoadsorbents fe3o4@nh2-based lfia pb(ii) detecting Agriculture (General) S1-972 Immunologic diseases. Allergy RC581-607
spellingShingle	magnetic nanoadsorbents fe3o4@nh2-based lfia pb(ii) detecting Agriculture (General) S1-972 Immunologic diseases. Allergy RC581-607 Menglu Sun Peng Li Xuexue Jin Xingrong Ju Wenjing Yan Jian Yuan Changrui Xing Heavy metal adsorption onto graphene oxide, amino group on magnetic nanoadsorbents and application for detection of Pb(II) by strip sensor
description	Paper-based lateral flow immunoassays (LFIAs) are an interesting on site technique for detecting heavy metals. Pb(II) is one of the toxic heavy metals in polluted environmental water. This paper reports the synthesis and characterization of three Fe3O4-based nanoadsorbents that show different performance to Pb(II), Cu(II), Cd(II), Hg(II), As(V), Zn(II), Fe(III), Ca(II), Mg(II), Mn(II), and Al(III) when a GO or an amino group is introduced. Compared with Fe3O4, Fe3O4-GO showed higher adsorption percentage to many heavy metal ions under slightly acid condition. The negative surface on Fe3O4@NH2 had favourable interactions for four main divalent metal ion adsorption, which followed the order: Pb(II) > Cu(II) > Hg(II) > Cd(II). Combined with antibody-functionalized AuNPs showed high affinity and specificity toward Pb(II), an Fe3O4@NH2-based LFIA with five times greater sensitivity for detecting Pb(II) in lake water was developed. The cut-off value of this Fe3O4@NH2-combined LFIA method for detection Pb(II) in lake water was 20 ng/mL and the detection result for 10 ng/mL Pb(II) was obviously observable by the naked eye or a strip reader machine. This detection strategy could be readily adapted for other small molecules or biomolecules as an ultrasensitive screening tool.
format	article
author	Menglu Sun Peng Li Xuexue Jin Xingrong Ju Wenjing Yan Jian Yuan Changrui Xing
author_facet	Menglu Sun Peng Li Xuexue Jin Xingrong Ju Wenjing Yan Jian Yuan Changrui Xing
author_sort	Menglu Sun
title	Heavy metal adsorption onto graphene oxide, amino group on magnetic nanoadsorbents and application for detection of Pb(II) by strip sensor
title_short	Heavy metal adsorption onto graphene oxide, amino group on magnetic nanoadsorbents and application for detection of Pb(II) by strip sensor
title_full	Heavy metal adsorption onto graphene oxide, amino group on magnetic nanoadsorbents and application for detection of Pb(II) by strip sensor
title_fullStr	Heavy metal adsorption onto graphene oxide, amino group on magnetic nanoadsorbents and application for detection of Pb(II) by strip sensor
title_full_unstemmed	Heavy metal adsorption onto graphene oxide, amino group on magnetic nanoadsorbents and application for detection of Pb(II) by strip sensor
title_sort	heavy metal adsorption onto graphene oxide, amino group on magnetic nanoadsorbents and application for detection of pb(ii) by strip sensor
publisher	Taylor & Francis Group
publishDate	2018
url	https://doaj.org/article/13030e9d06d4498a955c99aee7bdc044
work_keys_str_mv	AT menglusun heavymetaladsorptionontographeneoxideaminogrouponmagneticnanoadsorbentsandapplicationfordetectionofpbiibystripsensor AT pengli heavymetaladsorptionontographeneoxideaminogrouponmagneticnanoadsorbentsandapplicationfordetectionofpbiibystripsensor AT xuexuejin heavymetaladsorptionontographeneoxideaminogrouponmagneticnanoadsorbentsandapplicationfordetectionofpbiibystripsensor AT xingrongju heavymetaladsorptionontographeneoxideaminogrouponmagneticnanoadsorbentsandapplicationfordetectionofpbiibystripsensor AT wenjingyan heavymetaladsorptionontographeneoxideaminogrouponmagneticnanoadsorbentsandapplicationfordetectionofpbiibystripsensor AT jianyuan heavymetaladsorptionontographeneoxideaminogrouponmagneticnanoadsorbentsandapplicationfordetectionofpbiibystripsensor AT changruixing heavymetaladsorptionontographeneoxideaminogrouponmagneticnanoadsorbentsandapplicationfordetectionofpbiibystripsensor
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Heavy metal adsorption onto graphene oxide, amino group on magnetic nanoadsorbents and application for detection of Pb(II) by strip sensor

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