Functionalised magnetic beads on gold surface for C-reactive protein detection

Chammem, Hanen; Hafaid, Imen; Ardhaoui, Malika; Mora, Laurence; Meilhac, Olivier; Abdelghani, Adnane

doi:10.1504/ijnt.2015.068877

Cited by 6 publications

(1 citation statement)

References 19 publications

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“…In the second step, the spectrum of a substrate having a Au-decorated MWCNT film was recorded and finally, the spectrum of an MHDA-functionalized, gold decorated MWCNT film was recorded. The difference between a given sample spectrum and the reference spectrum (i.e., bare substrate) were considered to study the presence of the MHDA monolayer 54 .…”

Section: Methodsmentioning

confidence: 99%

MHDA-Functionalized Multiwall Carbon Nanotubes for detecting non-aromatic VOCs

Thamri

Baccar

Struzzi

et al. 2016

Sci Rep

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The chemical modification of multiwalled carbon nanotubes (MWCNTs) with a long chain mercapto acid is reported as a way to improve sensitivity and response time of gas sensors for detecting alcohols, acetone and toxic gases such as DMMP. We have developed sensors employing MWCNTs decorated with gold nanoparticles and modified with a 16-mercaptohexadecanoic acid (MHDA) monolayer. Morphological and compositional analysis by Transmission Electron Microscopy (TEM), Fourier Transform Infra-red Spectroscopy (FTIR) and X-ray photoelectron spectroscopy were performed to characterize the gold nanoparticles and to check the bonding of the thiol monolayer. The detection of aromatic and non-aromatic volatiles and DMMP vapors by MWCNT/Au and MWCNT/Au/MHDA shows that the presence of the self-assembled layer increases sensitivity and selectivity towards non-aromatics. Furthermore, it ameliorates response dynamics, and significantly reduces nitrogen dioxide and moisture cross-sensitivity.

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Section: Methodsmentioning

confidence: 99%