LSPR based optical fiber sensor with chitosan capped gold nanoparticles on BSA for trace detection of Hg (II) in water, soil and food samples

Kapil Sadani, Pooja Nag, Soumyo Mukherji

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Mercury is a diversely bioaccumulating heavy metal pollutant toxic to all life forms. In this work, an optical biosensor has been developed and calibrated for universal detection and quantification of mercuric ions, in the range 0.1–540 parts per billion, in biological and environmental samples. Chitosan capped gold nanoparticles on bovine serum albumin are proposed as an ultrasensitive plasmonic mercury receptor on U-bend optical fiber platform. The sensor was calibrated and tested with tap water, sewage contaminated water, marine water, long lived sea fish tissue, fossil fuel fly ash contaminated soil and vegetable samples. The sensor performance was validated with real samples inherently containing mercury. Overall standard error of less than 15% and a coefficient of variation less than 12% (n = 3) was found across all samples, indicating good fitness for diverse usage. Experimentally determined limit of detection of mercuric ions was 0.1 parts per billion in tap water (twenty times lesser than the Environment protection agency limit of 2 parts per billion in drinking water) and 0.2 parts per billion in sea fish and vegetable samples with negligible cross sensitivity towards other metal ions.

Original languageEnglish
Pages (from-to)90-96
Number of pages7
JournalBiosensors and Bioelectronics
Volume134
DOIs
Publication statusPublished - 01-06-2019
Externally publishedYes

Fingerprint

Optical Fibers
Chitosan
Fiber optic sensors
Gold
Nanoparticles
Soil
Mercury
Soils
Food
Water
Vegetables
Ions
Oceans and Seas
Fish
Fishes
Coal Ash
Fossil Fuels
Mercury (metal)
Poisons
Sensors

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Biophysics
  • Biomedical Engineering
  • Electrochemistry

Cite this

@article{2f0105fb823049e99a9e95302ef1b65b,
title = "LSPR based optical fiber sensor with chitosan capped gold nanoparticles on BSA for trace detection of Hg (II) in water, soil and food samples",
abstract = "Mercury is a diversely bioaccumulating heavy metal pollutant toxic to all life forms. In this work, an optical biosensor has been developed and calibrated for universal detection and quantification of mercuric ions, in the range 0.1–540 parts per billion, in biological and environmental samples. Chitosan capped gold nanoparticles on bovine serum albumin are proposed as an ultrasensitive plasmonic mercury receptor on U-bend optical fiber platform. The sensor was calibrated and tested with tap water, sewage contaminated water, marine water, long lived sea fish tissue, fossil fuel fly ash contaminated soil and vegetable samples. The sensor performance was validated with real samples inherently containing mercury. Overall standard error of less than 15{\%} and a coefficient of variation less than 12{\%} (n = 3) was found across all samples, indicating good fitness for diverse usage. Experimentally determined limit of detection of mercuric ions was 0.1 parts per billion in tap water (twenty times lesser than the Environment protection agency limit of 2 parts per billion in drinking water) and 0.2 parts per billion in sea fish and vegetable samples with negligible cross sensitivity towards other metal ions.",
author = "Kapil Sadani and Pooja Nag and Soumyo Mukherji",
year = "2019",
month = "6",
day = "1",
doi = "10.1016/j.bios.2019.03.046",
language = "English",
volume = "134",
pages = "90--96",
journal = "Biosensors and Bioelectronics",
issn = "0956-5663",
publisher = "Elsevier Limited",

}

LSPR based optical fiber sensor with chitosan capped gold nanoparticles on BSA for trace detection of Hg (II) in water, soil and food samples. / Sadani, Kapil; Nag, Pooja; Mukherji, Soumyo.

In: Biosensors and Bioelectronics, Vol. 134, 01.06.2019, p. 90-96.

Research output: Contribution to journalArticle

TY - JOUR

T1 - LSPR based optical fiber sensor with chitosan capped gold nanoparticles on BSA for trace detection of Hg (II) in water, soil and food samples

AU - Sadani, Kapil

AU - Nag, Pooja

AU - Mukherji, Soumyo

PY - 2019/6/1

Y1 - 2019/6/1

N2 - Mercury is a diversely bioaccumulating heavy metal pollutant toxic to all life forms. In this work, an optical biosensor has been developed and calibrated for universal detection and quantification of mercuric ions, in the range 0.1–540 parts per billion, in biological and environmental samples. Chitosan capped gold nanoparticles on bovine serum albumin are proposed as an ultrasensitive plasmonic mercury receptor on U-bend optical fiber platform. The sensor was calibrated and tested with tap water, sewage contaminated water, marine water, long lived sea fish tissue, fossil fuel fly ash contaminated soil and vegetable samples. The sensor performance was validated with real samples inherently containing mercury. Overall standard error of less than 15% and a coefficient of variation less than 12% (n = 3) was found across all samples, indicating good fitness for diverse usage. Experimentally determined limit of detection of mercuric ions was 0.1 parts per billion in tap water (twenty times lesser than the Environment protection agency limit of 2 parts per billion in drinking water) and 0.2 parts per billion in sea fish and vegetable samples with negligible cross sensitivity towards other metal ions.

AB - Mercury is a diversely bioaccumulating heavy metal pollutant toxic to all life forms. In this work, an optical biosensor has been developed and calibrated for universal detection and quantification of mercuric ions, in the range 0.1–540 parts per billion, in biological and environmental samples. Chitosan capped gold nanoparticles on bovine serum albumin are proposed as an ultrasensitive plasmonic mercury receptor on U-bend optical fiber platform. The sensor was calibrated and tested with tap water, sewage contaminated water, marine water, long lived sea fish tissue, fossil fuel fly ash contaminated soil and vegetable samples. The sensor performance was validated with real samples inherently containing mercury. Overall standard error of less than 15% and a coefficient of variation less than 12% (n = 3) was found across all samples, indicating good fitness for diverse usage. Experimentally determined limit of detection of mercuric ions was 0.1 parts per billion in tap water (twenty times lesser than the Environment protection agency limit of 2 parts per billion in drinking water) and 0.2 parts per billion in sea fish and vegetable samples with negligible cross sensitivity towards other metal ions.

UR - http://www.scopus.com/inward/record.url?scp=85063759138&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85063759138&partnerID=8YFLogxK

U2 - 10.1016/j.bios.2019.03.046

DO - 10.1016/j.bios.2019.03.046

M3 - Article

VL - 134

SP - 90

EP - 96

JO - Biosensors and Bioelectronics

JF - Biosensors and Bioelectronics

SN - 0956-5663

ER -