Acrylic microspheres-based optosensor for visual detection of nitrite

Nur Syarmim Mohamed Noor, Ling Ling Tan @ Chong, Yook Heng Lee, Kwok Feng Chong, Saiful Nizam Tajuddin

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

A new optosensor for visual quantitation of nitrite (NO2 -) ion has been fabricated by physically immobilizing Safranine O (SO) reagent onto a self-adhesive poly(n-butyl acrylate) [poly(nBA)] microspheres matrix, which was synthesized via facile microemulsion UV lithography technique. Evaluation and optimization of the optical NO2 - ion sensor was performed with a fiber optic reflectance spectrophotometer. Scanning electron micrograph showed well-shaped and smooth spherical morphology of the poly(nBA) microspheres with a narrow particles size distribution from 0.6 μm up to 1.8 μm. The uniform size distribution of the acrylic microspheres promoted homogeneity of the immobilized SO reagent molecules on the microspheres' surfaces, thereby enhanced the sensing response reproducibility (2 - ion. The micro-sized acrylic immobilization matrix demonstrated no significant barrier for diffusion of reactant and product, and served as a good solid state ion transport medium for reflectometric nitrite determination in food samples.

Original languageEnglish
Pages (from-to)132-138
Number of pages7
JournalFood Chemistry
Volume207
DOIs
Publication statusPublished - 15 Sep 2016

Fingerprint

Nitrites
Microspheres
nitrites
Acrylics
Ions
ions
adhesives
Adhesives
fiber optics
spectrophotometers
ion transport
particle size distribution
reproducibility
reflectance
sensors (equipment)
Spectrophotometers
Ion Transport
Microemulsions
foods
Particle Size

Keywords

  • Nitrite ion
  • Optosensor
  • Poly(n-butyl acrylate) microspheres
  • Reflectance spectrophotometer
  • Safranine O

ASJC Scopus subject areas

  • Food Science
  • Analytical Chemistry

Cite this

Acrylic microspheres-based optosensor for visual detection of nitrite. / Noor, Nur Syarmim Mohamed; Tan @ Chong, Ling Ling; Lee, Yook Heng; Chong, Kwok Feng; Tajuddin, Saiful Nizam.

In: Food Chemistry, Vol. 207, 15.09.2016, p. 132-138.

Research output: Contribution to journalArticle

Noor, Nur Syarmim Mohamed ; Tan @ Chong, Ling Ling ; Lee, Yook Heng ; Chong, Kwok Feng ; Tajuddin, Saiful Nizam. / Acrylic microspheres-based optosensor for visual detection of nitrite. In: Food Chemistry. 2016 ; Vol. 207. pp. 132-138.
@article{6e343de10a1e4ba4b2dfd42b4f051fca,
title = "Acrylic microspheres-based optosensor for visual detection of nitrite",
abstract = "A new optosensor for visual quantitation of nitrite (NO2 -) ion has been fabricated by physically immobilizing Safranine O (SO) reagent onto a self-adhesive poly(n-butyl acrylate) [poly(nBA)] microspheres matrix, which was synthesized via facile microemulsion UV lithography technique. Evaluation and optimization of the optical NO2 - ion sensor was performed with a fiber optic reflectance spectrophotometer. Scanning electron micrograph showed well-shaped and smooth spherical morphology of the poly(nBA) microspheres with a narrow particles size distribution from 0.6 μm up to 1.8 μm. The uniform size distribution of the acrylic microspheres promoted homogeneity of the immobilized SO reagent molecules on the microspheres' surfaces, thereby enhanced the sensing response reproducibility (2 - ion. The micro-sized acrylic immobilization matrix demonstrated no significant barrier for diffusion of reactant and product, and served as a good solid state ion transport medium for reflectometric nitrite determination in food samples.",
keywords = "Nitrite ion, Optosensor, Poly(n-butyl acrylate) microspheres, Reflectance spectrophotometer, Safranine O",
author = "Noor, {Nur Syarmim Mohamed} and {Tan @ Chong}, {Ling Ling} and Lee, {Yook Heng} and Chong, {Kwok Feng} and Tajuddin, {Saiful Nizam}",
year = "2016",
month = "9",
day = "15",
doi = "10.1016/j.foodchem.2016.03.088",
language = "English",
volume = "207",
pages = "132--138",
journal = "Food Chemistry",
issn = "0308-8146",
publisher = "Elsevier Limited",

}

TY - JOUR

T1 - Acrylic microspheres-based optosensor for visual detection of nitrite

AU - Noor, Nur Syarmim Mohamed

AU - Tan @ Chong, Ling Ling

AU - Lee, Yook Heng

AU - Chong, Kwok Feng

AU - Tajuddin, Saiful Nizam

PY - 2016/9/15

Y1 - 2016/9/15

N2 - A new optosensor for visual quantitation of nitrite (NO2 -) ion has been fabricated by physically immobilizing Safranine O (SO) reagent onto a self-adhesive poly(n-butyl acrylate) [poly(nBA)] microspheres matrix, which was synthesized via facile microemulsion UV lithography technique. Evaluation and optimization of the optical NO2 - ion sensor was performed with a fiber optic reflectance spectrophotometer. Scanning electron micrograph showed well-shaped and smooth spherical morphology of the poly(nBA) microspheres with a narrow particles size distribution from 0.6 μm up to 1.8 μm. The uniform size distribution of the acrylic microspheres promoted homogeneity of the immobilized SO reagent molecules on the microspheres' surfaces, thereby enhanced the sensing response reproducibility (2 - ion. The micro-sized acrylic immobilization matrix demonstrated no significant barrier for diffusion of reactant and product, and served as a good solid state ion transport medium for reflectometric nitrite determination in food samples.

AB - A new optosensor for visual quantitation of nitrite (NO2 -) ion has been fabricated by physically immobilizing Safranine O (SO) reagent onto a self-adhesive poly(n-butyl acrylate) [poly(nBA)] microspheres matrix, which was synthesized via facile microemulsion UV lithography technique. Evaluation and optimization of the optical NO2 - ion sensor was performed with a fiber optic reflectance spectrophotometer. Scanning electron micrograph showed well-shaped and smooth spherical morphology of the poly(nBA) microspheres with a narrow particles size distribution from 0.6 μm up to 1.8 μm. The uniform size distribution of the acrylic microspheres promoted homogeneity of the immobilized SO reagent molecules on the microspheres' surfaces, thereby enhanced the sensing response reproducibility (2 - ion. The micro-sized acrylic immobilization matrix demonstrated no significant barrier for diffusion of reactant and product, and served as a good solid state ion transport medium for reflectometric nitrite determination in food samples.

KW - Nitrite ion

KW - Optosensor

KW - Poly(n-butyl acrylate) microspheres

KW - Reflectance spectrophotometer

KW - Safranine O

UR - http://www.scopus.com/inward/record.url?scp=84962423511&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84962423511&partnerID=8YFLogxK

U2 - 10.1016/j.foodchem.2016.03.088

DO - 10.1016/j.foodchem.2016.03.088

M3 - Article

C2 - 27080889

AN - SCOPUS:84962423511

VL - 207

SP - 132

EP - 138

JO - Food Chemistry

JF - Food Chemistry

SN - 0308-8146

ER -