scholarly journals Mixed-solvent liquid exfoliated MoS2 NPs as peroxidase mimetics for colorimetric detection of H2O2 and glucose

RSC Advances ◽  
2018 ◽  
Vol 8 (13) ◽  
pp. 7252-7259 ◽  
Author(s):  
Yuehua Zhao ◽  
Yu Huang ◽  
Jiangling Wu ◽  
Xiaoli Zhan ◽  
Yuanyang Xie ◽  
...  
Keyword(s):  
Molybdenum Disulfide ◽  
Mixed Solvent ◽  
Colorimetric Detection ◽  
Colorimetric Method ◽  
Liquid Exfoliation ◽  
Liquid Exfoliation Method

Ultra-small molybdenum disulfide nanoparticles (MoS2 NPs) prepared by a facile liquid exfoliation method is capable of detecting the presence of H2O2 and glucose. This novel colorimetric method offers an alternative way to detect diabetes.

Enhanced peroxidase-like activity of Mo-doped ceria nanoparticles for sensitive colorimetric detection of glucose

2018 ◽  
Vol 10 (1) ◽  
pp. 76-83 ◽  
Author(s):  
Xue Jiao ◽  
Wanyi Liu ◽  
Di Wu ◽  
Wenhao Liu ◽  
Hongjie Song
Keyword(s):  
Catalytic Activity ◽  
Blood Glucose ◽  
Quantitative Determination ◽  
Colorimetric Detection ◽  
Colorimetric Method ◽  
Ceria Nanoparticles ◽  
Doped Ceria ◽  
Enzyme Mimics ◽  
Small Nanoparticles

Ultra-small nanoparticles of Mo-doped ceria (Mo/CeO2 NPs) possess enhanced peroxidase-like catalytic activity and these enzyme mimics are used here for the successful quantitative determination of blood glucose via a colorimetric method.

Colorimetric detection of hypoxanthine in aquatic products based on the mimic enzyme of cobalt-doped carbon nitride

2021 ◽  
Author(s):  
昕 王 ◽  
Zheng-Zhong Lin ◽  
Chengyi Hong ◽  
Zhiyong Huang
Keyword(s):  
Rapid Detection ◽  
Carbon Nitride ◽  
Colorimetric Detection ◽  
Colorimetric Method ◽  
Aquatic Products ◽  
Freshness Indicator

As an important freshness indicator of aquatic products, the rapid detection of hypoxanthine (Hx) is still urgent and challenging. In the present study, a colorimetric method for the rapid detection...

Ultra-facile and rapid colorimetric detection of Cu2+ with branched polyethylenimine in 100% aqueous solution

The Analyst ◽  
2018 ◽  
Vol 143 (2) ◽  
pp. 409-414 ◽  
Author(s):  
Hong Shao ◽  
Yadan Ding ◽  
Xia Hong ◽  
Yichun Liu
Keyword(s):  
Aqueous Solution ◽  
Colorimetric Detection ◽  
Colorimetric Method ◽  
Branched Polyethylenimine

An ultra-facile and rapid colorimetric method was explored to detect Cu2+ in 100% aqueous solution by using only BPEI.

A novel and environmentally friendly colorimetric method for detection of cystine in human urine using unmodified gold nanoparticles

RSC Advances ◽  
2014 ◽  
Vol 4 (52) ◽  
pp. 27297-27300 ◽  
Author(s):  
Li-Qiang Lu ◽  
Qian Gao ◽  
Chi Song ◽  
Xi-Ke Tian ◽  
An-Wu Xu
Keyword(s):  
Gold Nanoparticles ◽  
Human Urine ◽  
Colorimetric Detection ◽  
Colorimetric Method ◽  
Environmentally Friendly

A novel and environmentally friendly strategy based on unmodified AuNPs was developed for the colorimetric detection of cystine in human urine.

Colorimetric detection of hypochlorite based on the morphological changes of silver nanoprisms to spherical nanoparticles

2017 ◽  
Vol 9 (21) ◽  
pp. 3151-3158 ◽  
Author(s):  
Thangarasu Sasikumar ◽  
Malaichamy Ilanchelian
Keyword(s):  
Quantitative Determination ◽  
Morphological Changes ◽  
Colorimetric Detection ◽  
Colorimetric Method ◽  
Spherical Nanoparticles ◽  
Colorimetric Probe ◽  
Silver Nanoprisms

In this work, we have developed a simple, rapid, sensitive and selective colorimetric method for the quantitative determination of hypochlorite (ClO−) ions by using triangular silver nanoprisms (AgNPRs) as a colorimetric probe.

In situ colorimetric detection of glyphosate on plant tissues using cysteamine-modified gold nanoparticles

The Analyst ◽  
2019 ◽  
Vol 144 (6) ◽  
pp. 2017-2025 ◽  
Author(s):  
Qin Tu ◽  
Tianxi Yang ◽  
Yanqi Qu ◽  
Siyue Gao ◽  
Zhiyun Zhang ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Colorimetric Detection ◽  
Colorimetric Method ◽  
Plant Tissues

A simple, rapid and fieldable colorimetric method for detecting pesticides on plant tissues in situ has been developed.

Colorimetric detection of Cs+ based on the nonmorphological transition mechanism of gold nanoparticles in the presence of Prussian blue

2020 ◽  
Vol 44 (6) ◽  
pp. 2241-2246
Author(s):  
Jiaoyan Qiu ◽  
Ling Fu ◽  
Hongsen Wang ◽  
Ruifen Zou ◽  
Yujie Zhang ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Prussian Blue ◽  
Colorimetric Detection ◽  
Colorimetric Method ◽  
Au Nps ◽  
Transition Mechanism

A colorimetric method for the detection of Cs+ using Au NPs and Prussian blue based on a nonmorphological transition mechanism.

Colorimetric detection of quaternary ammonium surfactants using citrate-stabilized gold nanoparticles (Au NPs)

2014 ◽  
Vol 6 (7) ◽  
pp. 2031-2033 ◽  
Author(s):  
Li-Qing Zheng ◽  
Xiao-Dong Yu ◽  
Jing-Juan Xu ◽  
Hong-Yuan Chen
Keyword(s):  
Gold Nanoparticles ◽  
Quaternary Ammonium ◽  
Low Cost ◽  
Colorimetric Detection ◽  
Hydrophobic Effect ◽  
Colorimetric Method ◽  
Au Nps ◽  
Quaternary Ammonium Surfactants

Based on the hydrophobic effect inducing the aggregation of Au NPs, a rapid and low-cost colorimetric method for detection of quaternary ammonium surfactants using citrate-stabilized AuNPs was developed.

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.

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