Label-free Detection of Lead(II) Ion Using Differential Phase Modulated Localized Surface Plasmon Resonance Sensors

G. Y. Qiu; Anton H.L. Law; S. P. Ng; C.M. Lawrence Wu

doi:10.1016/j.proeng.2016.11.516

Label-free Detection of Lead(II) Ion Using Differential Phase Modulated Localized Surface Plasmon Resonance Sensors

G. Y. Qiu
, Anton H.L. Law
, S. P. Ng
, C.M. Lawrence Wu^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

7 Citations (Scopus)

67 Downloads (CityUHK Scholars)

Abstract

A label-free differential phase modulated localized surface plasmon resonance (LSPR) sensor is developed for specific detection of lead (II) ions (Pb(II)) in aqueous solution. The Pb(II) selective sensing receptor, poly(m-phenylenediamine-co-Aniline-2-sulfonic acids) (mPD-co-ASA) copolymer was fabricated through oxidative copolymerization, and was functionalization onto the LSPR self-assembly gold nanoislands (SAM-AuNIs) chip. The sensor exhibits specific response to Pb(II) ion rather than other metallic ions over a wide range of concentrations. The limit of detection (LOD) is estimated as 0.15 ppb, which is much lower than 10 ppb, the recommended threshold of Pb concentration in drinking water by the World Health Organization. Furthermore, the label-free advantage is combined with fast detection response. Therefore, the plasmonic sensor has great potential for highly sensitive and specific detection of Pb(II) ions in drinking water.

Original language	English
Pages (from-to)	533-536
Journal	Procedia Engineering
Volume	168
DOIs	https://doi.org/10.1016/j.proeng.2016.11.516
Publication status	Published - 2016
Event	30th Eurosensors Conference, Eurosensors 2016 - Budapest, Hungary Duration: 4 Sept 2016 → 7 Sept 2016

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 3 Good Health and Well-being

Research Keywords

label-free
lead(II) detection
LSPR
phase measurment

Publisher's Copyright Statement

This full text is made available under CC-BY-NC-ND 4.0. https://creativecommons.org/licenses/by-nc-nd/4.0/

Access Output

10.1016/j.proeng.2016.11.516

11821555.pdfFinal Published version, 217 KBLicence: CC BY-NC-ND

Other Access Options

Check CityUHK Library

Permanent Link

Right click to copy link

Cite this

@article{fc975463a09d41e685969695dd921c05,

title = "Label-free Detection of Lead(II) Ion Using Differential Phase Modulated Localized Surface Plasmon Resonance Sensors",

abstract = "A label-free differential phase modulated localized surface plasmon resonance (LSPR) sensor is developed for specific detection of lead (II) ions (Pb(II)) in aqueous solution. The Pb(II) selective sensing receptor, poly(m-phenylenediamine-co-Aniline-2-sulfonic acids) (mPD-co-ASA) copolymer was fabricated through oxidative copolymerization, and was functionalization onto the LSPR self-assembly gold nanoislands (SAM-AuNIs) chip. The sensor exhibits specific response to Pb(II) ion rather than other metallic ions over a wide range of concentrations. The limit of detection (LOD) is estimated as 0.15 ppb, which is much lower than 10 ppb, the recommended threshold of Pb concentration in drinking water by the World Health Organization. Furthermore, the label-free advantage is combined with fast detection response. Therefore, the plasmonic sensor has great potential for highly sensitive and specific detection of Pb(II) ions in drinking water.",

keywords = "label-free, lead(II) detection, LSPR, phase measurment",

author = "Qiu, \{G. Y.\} and Law, \{Anton H.L.\} and Ng, \{S. P.\} and Wu, \{C.M. Lawrence\}",

year = "2016",

doi = "10.1016/j.proeng.2016.11.516",

language = "English",

volume = "168",

pages = "533--536",

journal = "Procedia Engineering",

issn = "1877-7058",

publisher = "Elsevier B.V.",

note = "30th Eurosensors Conference, Eurosensors 2016 ; Conference date: 04-09-2016 Through 07-09-2016",

}

TY - JOUR

T1 - Label-free Detection of Lead(II) Ion Using Differential Phase Modulated Localized Surface Plasmon Resonance Sensors

AU - Qiu, G. Y.

AU - Law, Anton H.L.

AU - Ng, S. P.

AU - Wu, C.M. Lawrence

PY - 2016

Y1 - 2016

N2 - A label-free differential phase modulated localized surface plasmon resonance (LSPR) sensor is developed for specific detection of lead (II) ions (Pb(II)) in aqueous solution. The Pb(II) selective sensing receptor, poly(m-phenylenediamine-co-Aniline-2-sulfonic acids) (mPD-co-ASA) copolymer was fabricated through oxidative copolymerization, and was functionalization onto the LSPR self-assembly gold nanoislands (SAM-AuNIs) chip. The sensor exhibits specific response to Pb(II) ion rather than other metallic ions over a wide range of concentrations. The limit of detection (LOD) is estimated as 0.15 ppb, which is much lower than 10 ppb, the recommended threshold of Pb concentration in drinking water by the World Health Organization. Furthermore, the label-free advantage is combined with fast detection response. Therefore, the plasmonic sensor has great potential for highly sensitive and specific detection of Pb(II) ions in drinking water.

AB - A label-free differential phase modulated localized surface plasmon resonance (LSPR) sensor is developed for specific detection of lead (II) ions (Pb(II)) in aqueous solution. The Pb(II) selective sensing receptor, poly(m-phenylenediamine-co-Aniline-2-sulfonic acids) (mPD-co-ASA) copolymer was fabricated through oxidative copolymerization, and was functionalization onto the LSPR self-assembly gold nanoislands (SAM-AuNIs) chip. The sensor exhibits specific response to Pb(II) ion rather than other metallic ions over a wide range of concentrations. The limit of detection (LOD) is estimated as 0.15 ppb, which is much lower than 10 ppb, the recommended threshold of Pb concentration in drinking water by the World Health Organization. Furthermore, the label-free advantage is combined with fast detection response. Therefore, the plasmonic sensor has great potential for highly sensitive and specific detection of Pb(II) ions in drinking water.

KW - label-free

KW - lead(II) detection

KW - LSPR

KW - phase measurment

UR - https://www.scopus.com/pages/publications/85010002041

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85010002041&origin=recordpage

U2 - 10.1016/j.proeng.2016.11.516

DO - 10.1016/j.proeng.2016.11.516

M3 - RGC 21 - Publication in refereed journal

SN - 1877-7058

VL - 168

SP - 533

EP - 536

JO - Procedia Engineering

JF - Procedia Engineering

T2 - 30th Eurosensors Conference, Eurosensors 2016

Y2 - 4 September 2016 through 7 September 2016

ER -

Label-free Detection of Lead(II) Ion Using Differential Phase Modulated Localized Surface Plasmon Resonance Sensors

Abstract

UN SDGs

Research Keywords

Publisher's Copyright Statement

Access Output

Other Access Options

Permanent Link

Other Files and Links

Fingerprint

Cite this