Gold nanoplates for a localized surface plasmon resonance-based boric acid sensor

Marlia Morsin, Muhamad Mat Salleh, Ali Umar Akrajas, Mohd Zainizan Sahdan

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Localized surface plasmon resonance (LSPR) properties of metallic nanostructures, such as gold, are very sensitive to the dielectric environment of the material, which can simply be adjusted by changing its shape and size through modification of the synthesizing process. Thus, these unique properties are very promising, particularly for the detection of various types of chemicals, for example boric acid which is a non-permitted preservative employed in food preparations. For the sensing material, gold (Au) nanoplates with a variety of shapes, i.e., triangular, hexagonal, truncated pentagon and flat rod, were prepared using a seed-mediated growth method. The yield of Au nanoplates was estimated to be ca. 63% over all areas of the sensing material. The nanoplates produced two absorption bands, i.e., the transverse surface plasmon resonance (t-SPR) and the longitudinal surface plasmon resonance (l-SPR) at 545 nm and 710 nm, respectively. In the sensing study, these two bands were used to examine the response of gold nanoplates to the presence of boric acid in an aqueous environment. In a typical process, when the sample is immersed into an aqueous solution containing boric acid, these two bands may change their intensity and peak centers as a result of the interaction between the boric acid and the gold nanoplates. The changes in the intensities and peak positions of t-SPR and l-SPR linearly correlated with the change in the boric acid concentration in the solution.

Original languageEnglish
Article number947
JournalSensors (Switzerland)
Volume17
Issue number5
DOIs
Publication statusPublished - 1 May 2017

Fingerprint

boric acids
Boric acid
Surface Plasmon Resonance
Surface plasmon resonance
surface plasmon resonance
Gold
gold
sensors
Sensors
Food preservatives
preservatives
Nanostructures
food
Seed
seeds
Absorption spectra
Seeds
rods
boric acid
aqueous solutions

Keywords

  • Boric acid
  • Gold nanoparticles
  • Gold nanoplates
  • Localized surface plasmon resonance
  • Plasmonic sensor

ASJC Scopus subject areas

  • Analytical Chemistry
  • Atomic and Molecular Physics, and Optics
  • Biochemistry
  • Electrical and Electronic Engineering

Cite this

Gold nanoplates for a localized surface plasmon resonance-based boric acid sensor. / Morsin, Marlia; Mat Salleh, Muhamad; Akrajas, Ali Umar; Sahdan, Mohd Zainizan.

In: Sensors (Switzerland), Vol. 17, No. 5, 947, 01.05.2017.

Research output: Contribution to journalArticle

Morsin, Marlia ; Mat Salleh, Muhamad ; Akrajas, Ali Umar ; Sahdan, Mohd Zainizan. / Gold nanoplates for a localized surface plasmon resonance-based boric acid sensor. In: Sensors (Switzerland). 2017 ; Vol. 17, No. 5.
@article{eee9fa8b170b4fbdbd04f88c99ed580a,
title = "Gold nanoplates for a localized surface plasmon resonance-based boric acid sensor",
abstract = "Localized surface plasmon resonance (LSPR) properties of metallic nanostructures, such as gold, are very sensitive to the dielectric environment of the material, which can simply be adjusted by changing its shape and size through modification of the synthesizing process. Thus, these unique properties are very promising, particularly for the detection of various types of chemicals, for example boric acid which is a non-permitted preservative employed in food preparations. For the sensing material, gold (Au) nanoplates with a variety of shapes, i.e., triangular, hexagonal, truncated pentagon and flat rod, were prepared using a seed-mediated growth method. The yield of Au nanoplates was estimated to be ca. 63{\%} over all areas of the sensing material. The nanoplates produced two absorption bands, i.e., the transverse surface plasmon resonance (t-SPR) and the longitudinal surface plasmon resonance (l-SPR) at 545 nm and 710 nm, respectively. In the sensing study, these two bands were used to examine the response of gold nanoplates to the presence of boric acid in an aqueous environment. In a typical process, when the sample is immersed into an aqueous solution containing boric acid, these two bands may change their intensity and peak centers as a result of the interaction between the boric acid and the gold nanoplates. The changes in the intensities and peak positions of t-SPR and l-SPR linearly correlated with the change in the boric acid concentration in the solution.",
keywords = "Boric acid, Gold nanoparticles, Gold nanoplates, Localized surface plasmon resonance, Plasmonic sensor",
author = "Marlia Morsin and {Mat Salleh}, Muhamad and Akrajas, {Ali Umar} and Sahdan, {Mohd Zainizan}",
year = "2017",
month = "5",
day = "1",
doi = "10.3390/s17050947",
language = "English",
volume = "17",
journal = "Sensors (Switzerland)",
issn = "1424-8220",
publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",
number = "5",

}

TY - JOUR

T1 - Gold nanoplates for a localized surface plasmon resonance-based boric acid sensor

AU - Morsin, Marlia

AU - Mat Salleh, Muhamad

AU - Akrajas, Ali Umar

AU - Sahdan, Mohd Zainizan

PY - 2017/5/1

Y1 - 2017/5/1

N2 - Localized surface plasmon resonance (LSPR) properties of metallic nanostructures, such as gold, are very sensitive to the dielectric environment of the material, which can simply be adjusted by changing its shape and size through modification of the synthesizing process. Thus, these unique properties are very promising, particularly for the detection of various types of chemicals, for example boric acid which is a non-permitted preservative employed in food preparations. For the sensing material, gold (Au) nanoplates with a variety of shapes, i.e., triangular, hexagonal, truncated pentagon and flat rod, were prepared using a seed-mediated growth method. The yield of Au nanoplates was estimated to be ca. 63% over all areas of the sensing material. The nanoplates produced two absorption bands, i.e., the transverse surface plasmon resonance (t-SPR) and the longitudinal surface plasmon resonance (l-SPR) at 545 nm and 710 nm, respectively. In the sensing study, these two bands were used to examine the response of gold nanoplates to the presence of boric acid in an aqueous environment. In a typical process, when the sample is immersed into an aqueous solution containing boric acid, these two bands may change their intensity and peak centers as a result of the interaction between the boric acid and the gold nanoplates. The changes in the intensities and peak positions of t-SPR and l-SPR linearly correlated with the change in the boric acid concentration in the solution.

AB - Localized surface plasmon resonance (LSPR) properties of metallic nanostructures, such as gold, are very sensitive to the dielectric environment of the material, which can simply be adjusted by changing its shape and size through modification of the synthesizing process. Thus, these unique properties are very promising, particularly for the detection of various types of chemicals, for example boric acid which is a non-permitted preservative employed in food preparations. For the sensing material, gold (Au) nanoplates with a variety of shapes, i.e., triangular, hexagonal, truncated pentagon and flat rod, were prepared using a seed-mediated growth method. The yield of Au nanoplates was estimated to be ca. 63% over all areas of the sensing material. The nanoplates produced two absorption bands, i.e., the transverse surface plasmon resonance (t-SPR) and the longitudinal surface plasmon resonance (l-SPR) at 545 nm and 710 nm, respectively. In the sensing study, these two bands were used to examine the response of gold nanoplates to the presence of boric acid in an aqueous environment. In a typical process, when the sample is immersed into an aqueous solution containing boric acid, these two bands may change their intensity and peak centers as a result of the interaction between the boric acid and the gold nanoplates. The changes in the intensities and peak positions of t-SPR and l-SPR linearly correlated with the change in the boric acid concentration in the solution.

KW - Boric acid

KW - Gold nanoparticles

KW - Gold nanoplates

KW - Localized surface plasmon resonance

KW - Plasmonic sensor

UR - http://www.scopus.com/inward/record.url?scp=85018332837&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85018332837&partnerID=8YFLogxK

U2 - 10.3390/s17050947

DO - 10.3390/s17050947

M3 - Article

AN - SCOPUS:85018332837

VL - 17

JO - Sensors (Switzerland)

JF - Sensors (Switzerland)

SN - 1424-8220

IS - 5

M1 - 947

ER -