Colorimetric detection of Cu2+ based on the formation of peptide-copper complexes on silver nanoparticle surfaces

Gajanan Sampatrao Ghodake; Surendra Krishna Shinde; Rijuta Ganesh Saratale; Avinash Ashok Kadam; Ganesh Dattatraya Saratale; Asad Syed; Fuad Ameen; Dae Young Kim

doi:10.3762/bjnano.9.134

Colorimetric detection of Cu²⁺ based on the formation of peptide-copper complexes on silver nanoparticle surfaces

Gajanan Sampatrao Ghodake, Surendra Krishna Shinde, Rijuta Ganesh Saratale, Avinash Ashok Kadam, Ganesh Dattatraya Saratale, Asad Syed, Fuad Ameen, Dae Young Kim

Research output: Contribution to journal › Article › peer-review

50 Scopus citations

Abstract

We developed a colorimetric method for the rapid detection of copper ions (Cu²⁺) in aqueous solution. The detection of Cu²⁺ is based on coordination reactions of Cu²⁺ with casein peptide-functionalized silver nanoparticles (AgNPs), leading to a distinct color change of the solution from yellow to red. The developed method has a good detection limit of about 0.16 μM Cu²⁺ using 0.05 mL of AgNPs stock solution and a linearity in the range of 0.08-1.44 μM Cu²⁺ with a correlation coefficient of R2 = 0.973. The developed method is a useful tool for the detection of Cu²⁺ ions. Furthermore, it can be used for monitoring Cu²⁺ in water at concentrations below the safe limit for drinking water set by the World Health Organization.

Original language	English
Pages (from-to)	1414-1422
Number of pages	9
Journal	Beilstein Journal of Nanotechnology
Volume	9
Issue number	1
DOIs	https://doi.org/10.3762/bjnano.9.134
State	Published - 2018

Keywords

Absorbance
Dispersion
Drinking water
Rapid detection
UV spectroscopy

UN SDGs

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

Access to Document

10.3762/bjnano.9.134

Cite this

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title = "Colorimetric detection of Cu2+ based on the formation of peptide-copper complexes on silver nanoparticle surfaces",

abstract = "We developed a colorimetric method for the rapid detection of copper ions (Cu2+) in aqueous solution. The detection of Cu2+ is based on coordination reactions of Cu2+ with casein peptide-functionalized silver nanoparticles (AgNPs), leading to a distinct color change of the solution from yellow to red. The developed method has a good detection limit of about 0.16 μM Cu2+ using 0.05 mL of AgNPs stock solution and a linearity in the range of 0.08-1.44 μM Cu2+ with a correlation coefficient of R2 = 0.973. The developed method is a useful tool for the detection of Cu2+ ions. Furthermore, it can be used for monitoring Cu2+ in water at concentrations below the safe limit for drinking water set by the World Health Organization.",

keywords = "Absorbance, Dispersion, Drinking water, Rapid detection, UV spectroscopy",

author = "Ghodake, {Gajanan Sampatrao} and Shinde, {Surendra Krishna} and Saratale, {Rijuta Ganesh} and Kadam, {Avinash Ashok} and Saratale, {Ganesh Dattatraya} and Asad Syed and Fuad Ameen and Kim, {Dae Young}",

note = "Publisher Copyright: {\textcopyright} 2018 Ghodake et al.",

year = "2018",

doi = "10.3762/bjnano.9.134",

language = "English",

volume = "9",

pages = "1414--1422",

journal = "Beilstein Journal of Nanotechnology",

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T1 - Colorimetric detection of Cu2+ based on the formation of peptide-copper complexes on silver nanoparticle surfaces

AU - Ghodake, Gajanan Sampatrao

AU - Shinde, Surendra Krishna

AU - Saratale, Rijuta Ganesh

AU - Kadam, Avinash Ashok

AU - Saratale, Ganesh Dattatraya

AU - Syed, Asad

AU - Ameen, Fuad

AU - Kim, Dae Young

PY - 2018

Y1 - 2018

N2 - We developed a colorimetric method for the rapid detection of copper ions (Cu2+) in aqueous solution. The detection of Cu2+ is based on coordination reactions of Cu2+ with casein peptide-functionalized silver nanoparticles (AgNPs), leading to a distinct color change of the solution from yellow to red. The developed method has a good detection limit of about 0.16 μM Cu2+ using 0.05 mL of AgNPs stock solution and a linearity in the range of 0.08-1.44 μM Cu2+ with a correlation coefficient of R2 = 0.973. The developed method is a useful tool for the detection of Cu2+ ions. Furthermore, it can be used for monitoring Cu2+ in water at concentrations below the safe limit for drinking water set by the World Health Organization.

AB - We developed a colorimetric method for the rapid detection of copper ions (Cu2+) in aqueous solution. The detection of Cu2+ is based on coordination reactions of Cu2+ with casein peptide-functionalized silver nanoparticles (AgNPs), leading to a distinct color change of the solution from yellow to red. The developed method has a good detection limit of about 0.16 μM Cu2+ using 0.05 mL of AgNPs stock solution and a linearity in the range of 0.08-1.44 μM Cu2+ with a correlation coefficient of R2 = 0.973. The developed method is a useful tool for the detection of Cu2+ ions. Furthermore, it can be used for monitoring Cu2+ in water at concentrations below the safe limit for drinking water set by the World Health Organization.

KW - Absorbance

KW - Dispersion

KW - Drinking water

KW - Rapid detection

KW - UV spectroscopy

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