A dual-mode colorimetric sensor based on copper nanoparticles for the detection of mercury-(ii) ions

2019 ◽  
Vol 11 (31) ◽  
pp. 4014-4021 ◽  
Author(s):  
Qiang Li ◽  
Feng Wu ◽  
Mao Mao ◽  
Xiang Ji ◽  
Luyao Wei ◽  
...  
Keyword(s):  
Copper Nanoparticles ◽  
Colorimetric Method ◽  
Colorimetric Sensor ◽  
Sensitive Detection ◽  
Dual Mode

A dual-mode colorimetric method based on copper nanoparticles was developed for rapid and sensitive detection of mercury(ii) ions

scholarly journals A label-free protamine-assisted colorimetric sensor for highly sensitive detection of S1 nuclease activity

The Analyst ◽  
2020 ◽  
Vol 145 (7) ◽  
pp. 2774-2778
Author(s):  
Jiahui Wen ◽  
Yongming Liu ◽  
Jingwen Li ◽  
Hao Lin ◽  
Yiran Zheng ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Colorimetric Method ◽  
Nuclease Activity ◽  
Colorimetric Sensor ◽  
Sensitive Detection ◽  
Label Free ◽  
S1 Nuclease ◽  
Highly Sensitive ◽  
Highly Sensitive Detection

A label-free, simple and rapid colorimetric method for the sensitive detection of S1 nuclease activity based on protamine-assisted aggregation of gold nanoparticles.

Dual-Mode Colorimetric Sensor Based on Ultrathin Resonating Facilitator Capable of Nanometer-Thick Virus Detection for Environment Monitoring

2020 ◽  
Vol 3 (7) ◽  
pp. 6636-6644
Author(s):  
Young Jin Yoo ◽  
Joo Hwan Ko ◽  
Won-Guen Kim ◽  
Yeong Jae Kim ◽  
Duk-Jo Kong ◽  
...  
Keyword(s):  
Virus Detection ◽  
Colorimetric Sensor ◽  
Environment Monitoring ◽  
Dual Mode

An anthracene–quinoline based dual-mode fluorometric–colorimetric sensor for the detection of Fe3+ and its application in live cell imaging

2021 ◽  
Author(s):  
Tahereh Tehrani ◽  
Soraia Meghdadi ◽  
Zohreh Salarvand ◽  
Behnam Tavakoli ◽  
Kiamars Eskandari ◽  
...  
Keyword(s):  
Live Cell Imaging ◽  
Cell Imaging ◽  
Colorimetric Detection ◽  
Colorimetric Sensor ◽  
Live Cell ◽  
Dual Mode ◽  
Highly Sensitive

A highly sensitive anthracene–quinoline based dual-mode sensor has been synthesized and used for the fluorometric and colorimetric detection of Fe3+ and in live cell imaging.

l-cysteine protected copper nanoparticles as colorimetric sensor for mercuric ions

Talanta ◽  
2014 ◽  
Vol 130 ◽  
pp. 415-422 ◽  
Author(s):  
Razium A. Soomro ◽  
Ayman Nafady ◽  
Sirajuddin ◽  
Najma Memon ◽  
Tufail H. Sherazi ◽  
...  
Keyword(s):  
Copper Nanoparticles ◽  
Colorimetric Sensor ◽  
Mercuric Ions

Copper nanoparticles modified graphitic carbon nitride nanosheets as a peroxidase mimetic for glucose detection

RSC Advances ◽  
2015 ◽  
Vol 5 (111) ◽  
pp. 91302-91307 ◽  
Author(s):  
Nan Wang ◽  
Zhenwei Han ◽  
Hai Fan ◽  
Shiyun Ai
Keyword(s):  
Copper Nanoparticles ◽  
Carbon Nitride ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Sensitive Detection ◽  
Glucose Detection ◽  
Peroxidase Mimic ◽  
Peroxidase Mimetic ◽  
Carbon Nitride Nanosheets

Cu NPs/g-C3N4 was successfully prepared by the calcination of dicyandiamide–Cu2+ complex as a peroxidase mimic for sensitive detection of glucose.

scholarly journals A Facile Colorimetric Method For Ultra-Rapid And Sensitive Detection of Copper Ions In Water

2021 ◽  
Author(s):  
Lei Chen ◽  
Yan Li ◽  
Ping Sun ◽  
Hualin Chen ◽  
He Li ◽  
...  
Keyword(s):  
Color Change ◽  
Copper Ions ◽  
Colorimetric Method ◽  
Ethanol Solution ◽  
Sensitive Detection ◽  
World Health ◽  
Great Promise ◽  
Experimental Conditions ◽  
Interesting Phenomenon ◽  
Health Organization

Abstract It is of great meaning to develop a facile, reliable and sensitive method to detect copper ions in water. In the study, a facile method has been developed for rapid and sensitive detection of Cu2+. An interesting phenomenon has been observed that 3,3',5,5'-tetramethylbenzidine (TMB) ethanol solution can be extremely fast passed from colorless to yellow once Cu2+ ions are added. It easily occurs to us that Cu2+ can be quantitatively determined via the absorbance at 904 nm of the color changed TMB solution. More importantly, some specific anions (Cl- , Br- ) can significantly enhance the absorption intensity. Under the optimized experimental conditions, this method exhibits a good linear response range for Cu2+ from 0.5 to 100 μM, with the detection limit of 93 nM. Moreover, the possible detection principle has been explored. It is worth mentioning that the color change can be clearly observed by naked eyes for the detection of 1 μM Cu2+, which is far below the threshold limit of Cu2+ in drinking water suggested by World Health Organization. It means that this method possess great promise for on-site Cu2+ detection.

Porphyrin functionalized Co(OH)2/GO nanocomposites as an excellent peroxidase mimic for colorimetric biosensing

The Analyst ◽  
2019 ◽  
Vol 144 (17) ◽  
pp. 5284-5291 ◽  
Author(s):  
Xin Zhao ◽  
Kaili Wu ◽  
Haoyuan Lyu ◽  
Xianxi Zhang ◽  
Zhenxue Liu ◽  
...  
Keyword(s):  
Colorimetric Sensor ◽  
Sensitive Detection ◽  
Peroxidase Mimic ◽  
Colorimetric Biosensing

A colorimetric sensor based on the enhanced peroxidase-like activity of Por/Co(OH)2/GO for the sensitive detection of H2O2 and GSH.

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