Use of a smartphone for intelligent detection of cyromazine based on Tween 20 modified gold nanoparticles

2020 ◽  
Vol 12 (11) ◽  
pp. 1469-1477 ◽  
Author(s):  
Huihui Liu ◽  
Zeyu Gan ◽  
Chao Song ◽  
Binbin Xu ◽  
Zhiyong Guo ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Tween 20 ◽  
Intelligent Detection

Use of a smartphone for intelligent detection of cyromazine based on Tween 20 modified gold nanoparticles.

scholarly journals Label free colorimetric sensing of thiocyanate based on inducing aggregation of Tween 20-stabilized gold nanoparticles

The Analyst ◽  
2012 ◽  
Vol 137 (11) ◽  
pp. 2682 ◽  
Author(s):  
Zhiyang Zhang ◽  
Jun Zhang ◽  
Chengli Qu ◽  
Dawei Pan ◽  
Zhaopeng Chen ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Tween 20 ◽  
Label Free ◽  
Colorimetric Sensing

scholarly journals Electrochemical Fingerprints of Illicit Drugs on Graphene and Multi-Walled Carbon Nanotubes

2021 ◽  
Vol 9 ◽  
Author(s):  
Ana-Maria Dragan ◽  
Florina Maria Truta ◽  
Mihaela Tertis ◽  
Anca Florea ◽  
Jonas Schram ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Gold Nanoparticles ◽  
Cyclic Voltammetry ◽  
Sulfuric Acid ◽  
Illicit Drugs ◽  
Biological Fluids ◽  
Emerging Pollutants ◽  
Tween 20 ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

Illicit drugs use and abuse remains an increasing challenge for worldwide authorities and, therefore, it is important to have accurate methods to detect them in seized samples, biological fluids and wastewaters. They are recently classified as the latest group of emerging pollutants as their consumption increased tremendously in recent years. Nanomaterials have gained much attention over the last decade in the development of sensors for a myriad of applications. The applicability of these nanomaterials, functionalized or not, significantly increases and it is therefore highly suitable for use in the detection of illicit drugs. We have assessed the suitability of various nanoplatforms, such as graphene (GPH), multi-walled carbon nanotubes (MWCNTs), gold nanoparticles (AuNPs) and platinum nanoparticles (PtNPs) for the electrochemical detection of illicit drugs. GPH and MWCNTs were chosen as the most suitable platforms and cocaine, 3,4-methylendioxymethamfetamine (MDMA), 3-methylmethcathinone (MMC) and α-pyrrolidinovalerophenone (PVP) were tested. Due to the hydrophobicity of the nanomaterials-based platforms which led to low signals, two strategies were followed namely, pretreatment of the electrodes in sulfuric acid by cyclic voltammetry and addition of Tween 20 to the detection buffer. Both strategies led to an increase in the oxidation signal of illicit drugs. Binary mixtures of illicit drugs with common adulterants found in street samples were also investigated. The proposed strategies allowed the sensitive detection of illicit drugs in the presence of most adulterants. The suitability of the proposed sensors for the detection of illicit drugs in spiked wastewaters was finally assessed.

Colorimetric Sensing of Silver(I) and Mercury(II) Ions Based on an Assembly of Tween 20-Stabilized Gold Nanoparticles

2010 ◽  
Vol 82 (16) ◽  
pp. 6830-6837 ◽  
Author(s):  
Cheng-Yan Lin ◽  
Cheng-Ju Yu ◽  
Yen-Hsiu Lin ◽  
Wei-Lung Tseng
Keyword(s):  
Gold Nanoparticles ◽  
Tween 20 ◽  
Colorimetric Sensing
Sign in / Sign up

Export Citation Format

Share Document