scholarly journals A simple, fast and highly sensitive colorimetric detection of zein in aqueous ethanol via zein–pyridine–gold interactions

2015 ◽  
Vol 51 (86) ◽  
pp. 15736-15738 ◽  
Author(s):  
Alejandro Latorre-Sanchez ◽  
Jose A. Pomposo
Keyword(s):  
Gold Nanoparticles ◽  
Aqueous Ethanol ◽  
Colorimetric Detection ◽  
Single Chain ◽  
Corn Protein ◽  
Highly Sensitive

Formation of gold nanoparticles in aqueous ethanol in the presence of pyridine-functionalized single-chain nanoparticles allows for the fast and highly sensitive colorimetric detection of zein corn protein.

scholarly journals Highly sensitive colorimetric detection of 17β-estradiol using split DNA aptamers immobilized on unmodified gold nanoparticles

2014 ◽  
Vol 4 (1) ◽  
Author(s):  
Jinchuan Liu ◽  
Wenhui Bai ◽  
Shucao Niu ◽  
Chao Zhu ◽  
Shuming Yang ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Colorimetric Detection ◽  
Dna Aptamers ◽  
Highly Sensitive ◽  
17Β Estradiol

Zwitterionic peptide-capped gold nanoparticles for colorimetric detection of Ni2+

Nanoscale ◽  
2018 ◽  
Vol 10 (12) ◽  
pp. 5466-5473 ◽  
Author(s):  
Attasith Parnsubsakul ◽  
Sukunya Oaew ◽  
Werasak Surareungchai
Keyword(s):  
Gold Nanoparticles ◽  
Colorimetric Detection ◽  
Sensitive Detection ◽  
Highly Sensitive ◽  
Highly Sensitive Detection

Recyclable zwitterionic peptide-capped AuNPs for highly sensitive detection of Ni2+.

scholarly journals Highly Sensitive and Selective Colorimetric Detection of Methylmercury Based on DNA Functionalized Gold Nanoparticles

Sensors ◽  
2018 ◽  
Vol 18 (8) ◽  
pp. 2679 ◽  
Author(s):  
Zheng-Jun Xie ◽  
Xian-Yu Bao ◽  
Chi-Fang Peng
Keyword(s):  
Gold Nanoparticles ◽  
Catalytic Activity ◽  
Limit Of Detection ◽  
Low Cost ◽  
Colorimetric Detection ◽  
Colorimetric Method ◽  
Optimal Conditions ◽  
Surface Deposition ◽  
Highly Sensitive ◽  
Dna Strand

A new colorimetric detection of methylmercury (CH3Hg+) was developed, which was based on the surface deposition of Hg enhancing the catalytic activity of gold nanoparticles (AuNPs). The AuNPs were functionalized with a specific DNA strand (HT7) recognizing CH3Hg+, which was used to capture and separate CH3Hg+ by centrifugation. It was found that the CH3Hg+ reduction resulted in the deposition of Hg onto the surface of AuNPs. As a result, the catalytic activity of the AuNPs toward the chromogenic reaction of 3,3,5,5-tetramethylbenzidine (TMB)-H2O2 was remarkably enhanced. Under optimal conditions, a limit of detection of 5.0 nM was obtained for CH3Hg+ with a linear range of 10–200 nM. We demonstrated that the colorimetric method was fairly simple with a low cost and can be conveniently applied to CH3Hg+ detection in environmental samples.

scholarly journals Erratum: Xie, Z.-J.; Bao, X.-Y.; Peng, C.-F. Highly Sensitive and Selective Colorimetric Detection of Methylmercury Based on DNA-Functionalized Gold Nanoparticles. Sensors 2018, 18, 2679.

Sensors ◽  
2018 ◽  
Vol 18 (9) ◽  
pp. 3135
Author(s):  
Zheng-Jun Xie ◽  
Xian-Yu Bao ◽  
Chi-Fang Peng
Keyword(s):  
Gold Nanoparticles ◽  
Colorimetric Detection ◽  
Functionalized Gold Nanoparticles ◽  
Highly Sensitive

The authors wish to make the following corrections to their paper [...]

Anisotropic gold nanoparticles for the highly sensitive colorimetric detection of glucose in human urine

RSC Advances ◽  
2015 ◽  
Vol 5 (51) ◽  
pp. 40849-40855 ◽  
Author(s):  
Abhishek Chaudhary ◽  
Abhishek Gupta ◽  
Chayan Kanti Nandi
Keyword(s):  
Gold Nanoparticles ◽  
Human Urine ◽  
Colorimetric Detection ◽  
Highly Sensitive ◽  
Anisotropic Gold Nanoparticles

PEDOT:PSS modified anisotropic gold nanoparticles (GNP) for the colorimetric detection of glucose in urine.

Highly Sensitive Aptamer-Based Colorimetric Detection of Melamine in Raw Milk with Cysteamine-Stabilized Gold Nanoparticles

2017 ◽  
Vol 17 (2) ◽  
pp. 853-861 ◽  
Author(s):  
Hongru Zheng ◽  
Ying Li ◽  
Jingyue Xu ◽  
Jiaxin Bie ◽  
Xin Liu ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Colorimetric Detection ◽  
Raw Milk ◽  
Highly Sensitive

Highly sensitive and selective colorimetric detection of Hg2+ based on the separation of Hg2+ and formation of catalytic DNA–gold nanoparticles

2016 ◽  
Vol 8 (5) ◽  
pp. 1021-1025 ◽  
Author(s):  
Chi-Fang Peng ◽  
Na Pan ◽  
Zheng-Jun Xie ◽  
Liang-Liang Wu
Keyword(s):  
Gold Nanoparticles ◽  
Catalytic Activity ◽  
Water Samples ◽  
Colorimetric Detection ◽  
Highly Sensitive ◽  
Catalytic Dna

Hg2+ ions can be absorbed onto a DNA–AuNP complex and separated from water samples while the catalytic activity of DNA–AuNPs can be promoted.

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