Visual detection of copper(n) ions in blood samples by controlling the leaching of protein-capped gold nanoparticles

We have developed a simple, low-cost, paper-based probe for the selective colorimetric detection of copper ions (Cu(2+)) in aqueous solutions. The bovine serum albumin (BSA)-modified 13.3-nm Au nanoparticle (BSA-Au NP) probe was designed to detect Cu(2+) ions using lead ions (Pb(2+)) and 2-mercaptoe...

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Published inAnalyst (London) Vol. 137; no. 8; pp. 1800 - 1806
Main Authors LEE, Yen-Fei, DENG, Ting-Wei, CHIU, Wei-Jane, WEI, Tsao-Yen, ROY, Prathik, HUANG, Chih-Ching
Format Journal Article
LanguageEnglish
Published Cambridge Royal Society of Chemistry 21.04.2012
Subjects
Analytical chemistry
Aqueous solutions
Blood
Chemistry
Copper
Copper - blood
Exact sciences and technology
Gold
Gold - chemistry
Indexing in process
Leaching
Lead - chemistry
Membranes, Artificial
Mercaptoethanol - chemistry
Metal Nanoparticles
Nanomaterials
Nanostructure
Serum Albumin, Bovine - chemistry
Spectrometric and optical methods
Water
Fold
Nanoparticle
Metal ion
Colorimetry
Selectivity
Glycine
Probe
Blood
Design
Eye
Cellulose nitrate
pH
Membrane
Nanocomposite
Inhibition
Ungulata
Deposition
Gold
Lead ion
Bovine
Sample
Use
Serum albumin
Concentration
Leaching
Protein
Biological compound
Vertebrata
Mammalia
Copper ion
Preparation
Artiodactyla
Aqueous solution
Detection
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Abstract We have developed a simple, low-cost, paper-based probe for the selective colorimetric detection of copper ions (Cu(2+)) in aqueous solutions. The bovine serum albumin (BSA)-modified 13.3-nm Au nanoparticle (BSA-Au NP) probe was designed to detect Cu(2+) ions using lead ions (Pb(2+)) and 2-mercaptoethanol (2-ME) as leaching agents in a glycine-NaOH (pH 12.0) solution. In addition, a nitrocellulose membrane (NCM) was used to trap the BSA-Au NPs, leading to the preparation of a nanocomposite film consisting of a BSA-Au NP-decorated membrane (BSA-Au NPs/NCM). The BSA-Au NPs probe operates on the principle that Cu deposition on the surface of the BSA-Au NPs inhibits their leaching ability, which is accelerated by Pb(2+) ions in the presence of 2-ME. Under optimal solution conditions (5 mM glycine-NaOH (pH 12.0), Pb(2+) (50 μM), and 2-ME (1.0 M)), the Pb(2+)/2-ME-BSA-Au NPs/NCM enabled the detection of Cu(2+) at nanomolar concentrations in aqueous solutions by the naked eye with high selectivity (at least 100-fold over other metal ions). In addition, this cost-effective probe allowed for the rapid and simple determination of Cu(2+) ions in not only natural water samples but also in a complex biological sample (in this case, blood sample).
AbstractList We have developed a simple, low-cost, paper-based probe for the selective colorimetric detection of copper ions (Cu(2+)) in aqueous solutions. The bovine serum albumin (BSA)-modified 13.3-nm Au nanoparticle (BSA-Au NP) probe was designed to detect Cu(2+) ions using lead ions (Pb(2+)) and 2-mercaptoethanol (2-ME) as leaching agents in a glycine-NaOH (pH 12.0) solution. In addition, a nitrocellulose membrane (NCM) was used to trap the BSA-Au NPs, leading to the preparation of a nanocomposite film consisting of a BSA-Au NP-decorated membrane (BSA-Au NPs/NCM). The BSA-Au NPs probe operates on the principle that Cu deposition on the surface of the BSA-Au NPs inhibits their leaching ability, which is accelerated by Pb(2+) ions in the presence of 2-ME. Under optimal solution conditions (5 mM glycine-NaOH (pH 12.0), Pb(2+) (50 μM), and 2-ME (1.0 M)), the Pb(2+)/2-ME-BSA-Au NPs/NCM enabled the detection of Cu(2+) at nanomolar concentrations in aqueous solutions by the naked eye with high selectivity (at least 100-fold over other metal ions). In addition, this cost-effective probe allowed for the rapid and simple determination of Cu(2+) ions in not only natural water samples but also in a complex biological sample (in this case, blood sample).
We have developed a simple, low-cost, paper-based probe for the selective colorimetric detection of copper ions (Cu super(2+)) in aqueous solutions. The bovine serum albumin (BSA)-modified 13.3-nm Au nanoparticle (BSA-Au NP) probe was designed to detect Cu super(2+) ions using lead ions (Pb super(2+)) and 2-mercaptoethanol (2-ME) as leaching agents in a glycine-NaOH (pH 12.0) solution. In addition, a nitrocellulose membrane (NCM) was used to trap the BSA-Au NPs, leading to the preparation of a nanocomposite film consisting of a BSA-Au NP-decorated membrane (BSA-Au NPs/NCM). The BSA-Au NPs probe operates on the principle that Cu deposition on the surface of the BSA-Au NPs inhibits their leaching ability, which is accelerated by Pb super(2+) ions in the presence of 2-ME. Under optimal solution conditions (5 mM glycine-NaOH (pH 12.0), Pb super(2+) (50 mu M), and 2-ME (1.0 M)), the Pb super(2+)/2-ME-BSA-Au NPs/NCM enabled the detection of Cu super(2+) at nanomolar concentrations in aqueous solutions by the naked eye with high selectivity (at least 100-fold over other metal ions). In addition, this cost-effective probe allowed for the rapid and simple determination of Cu super(2+) ions in not only natural water samples but also in a complex biological sample (in this case, blood sample).
Author LEE, Yen-Fei
CHIU, Wei-Jane
WEI, Tsao-Yen
HUANG, Chih-Ching
DENG, Ting-Wei
ROY, Prathik
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  fullname: DENG, Ting-Wei
  organization: Institute of Bioscience and Biotechnology and Center of Excellence for Marine Bioenvironment and Biotechnology (CMBB), National Taiwan Ocean University, 2, Pei-Ning Road, Keelung, 20224, Taiwan, Province of China
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  givenname: Wei-Jane
  surname: CHIU
  fullname: CHIU, Wei-Jane
  organization: Institute of Bioscience and Biotechnology and Center of Excellence for Marine Bioenvironment and Biotechnology (CMBB), National Taiwan Ocean University, 2, Pei-Ning Road, Keelung, 20224, Taiwan, Province of China
– sequence: 4
  givenname: Tsao-Yen
  surname: WEI
  fullname: WEI, Tsao-Yen
  organization: Institute of Bioscience and Biotechnology and Center of Excellence for Marine Bioenvironment and Biotechnology (CMBB), National Taiwan Ocean University, 2, Pei-Ning Road, Keelung, 20224, Taiwan, Province of China
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  givenname: Prathik
  surname: ROY
  fullname: ROY, Prathik
  organization: Department of Chemistry, National Taiwan University, Taipei, 10617, Taiwan, Province of China
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  givenname: Chih-Ching
  surname: HUANG
  fullname: HUANG, Chih-Ching
  organization: Institute of Bioscience and Biotechnology and Center of Excellence for Marine Bioenvironment and Biotechnology (CMBB), National Taiwan Ocean University, 2, Pei-Ning Road, Keelung, 20224, Taiwan, Province of China
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Issue 8
Keywords Water
Fold
Nanoparticle
Metal ion
Colorimetry
Selectivity
Glycine
Probe
Blood
Design
Eye
Cellulose nitrate
pH
Membrane
Nanocomposite
Inhibition
Ungulata
Deposition
Gold
Lead ion
Bovine
Sample
Use
Serum albumin
Concentration
Leaching
Protein
Biological compound
Vertebrata
Mammalia
Copper ion
Preparation
Artiodactyla
Aqueous solution
Detection
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SSID ssj0001050
Score 2.2242103
Snippet We have developed a simple, low-cost, paper-based probe for the selective colorimetric detection of copper ions (Cu(2+)) in aqueous solutions. The bovine serum...
We have developed a simple, low-cost, paper-based probe for the selective colorimetric detection of copper ions (Cu super(2+)) in aqueous solutions. The bovine...
SourceID proquest
crossref
pubmed
pascalfrancis
SourceType Aggregation Database
Index Database
StartPage 1800
SubjectTerms Analytical chemistry
Aqueous solutions
Blood
Chemistry
Copper
Copper - blood
Exact sciences and technology
Gold
Gold - chemistry
Indexing in process
Leaching
Lead - chemistry
Membranes, Artificial
Mercaptoethanol - chemistry
Metal Nanoparticles
Nanomaterials
Nanostructure
Serum Albumin, Bovine - chemistry
Spectrometric and optical methods
Title Visual detection of copper(n) ions in blood samples by controlling the leaching of protein-capped gold nanoparticles
URI https://www.ncbi.nlm.nih.gov/pubmed/22378024
https://search.proquest.com/docview/1020840703
https://search.proquest.com/docview/1038238820
https://search.proquest.com/docview/1671610798
https://search.proquest.com/docview/929502468
Volume 137
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