MXene with Great Adsorption Ability toward Organic Dye: An Excellent Material for Constructing a Ratiometric Electrochemical Sensing Platform

ACS Sensors ◽  
2019 ◽  
Vol 4 (8) ◽  
pp. 2058-2064 ◽  
Author(s):  
Ruyue Zhang ◽  
Jiang Liu ◽  
Yingchun Li
Keyword(s):  
Organic Dye ◽  
Electrochemical Sensing ◽  
Adsorption Ability ◽  
Sensing Platform

scholarly journals Paper-Based Competitive Immunochromatography Coupled with an Enzyme-Modified Electrode to Enable the Wireless Monitoring and Electrochemical Sensing of Cotinine in Urine

Sensors ◽  
2021 ◽  
Vol 21 (5) ◽  
pp. 1659
Author(s):  
Nutcha Larpant ◽  
Pramod K. Kalambate ◽  
Tautgirdas Ruzgas ◽  
Wanida Laiwattanapaisal
Keyword(s):  
Glucose Oxidase ◽  
Modified Electrode ◽  
Near Field ◽  
Electrochemical Measurement ◽  
Electrochemical Sensing ◽  
Urine Samples ◽  
Lateral Flow Strip ◽  
Wireless Monitoring ◽  
Sensing Platform ◽  
Combined Strategy

This paper proposes a combined strategy of using paper-based competitive immunochromatography and a near field communication (NFC) tag for wireless cotinine determination. The glucose oxidase labeled cotinine antibody specifically binds free cotinine in a sample, whereas the unoccupied antibody attached to BSA-cotinine at the test line on a lateral flow strip. The glucose oxidase on the strip and an assistant pad in the presence of glucose generated H2O2 and imposed the Ag oxidation on the modified electrode. This enabled monitoring of immunoreaction by either electrochemical measurement or wireless detection. Wireless sensing was realized for cotinine in the range of 100–1000 ng/mL (R2 = 0.96) in PBS medium. Undiluted urine samples from non-smokers exhibited an Ag-oxidation rate three times higher than the smoker’s urine samples. For 1:8 diluted urine samples (smokers), the proposed paper-based competitive immunochromatography coupled with an enzyme-modified electrode differentiated positive and negative samples and exhibited cotinine discrimination at levels higher than 12 ng/mL. This novel sensing platform can potentially be combined with a smartphone as a reader unit.

Copper sulfide nano-globules reinforced electrodes for high-performance electrochemical determination of toxic pollutant hydroquinone

2021 ◽  
Vol 45 (6) ◽  
pp. 3215-3223
Author(s):  
Selvarasu Maheshwaran ◽  
Ramachandran Balaji ◽  
Shen-Ming Chen ◽  
Ray Biswadeep ◽  
Vengudusamy Renganathan ◽  
...  
Keyword(s):  
Copper Sulfide ◽  
High Performance ◽  
Electrochemical Determination ◽  
Electrochemical Sensing ◽  
Sensing Platform ◽  
Toxic Pollutant

A high-performance electrochemical sensing platform based on CuS nano-globules is efficiently developed.

scholarly journals Versatile Electrochemical Sensing Platform for Bacteria

2019 ◽  
Vol 91 (7) ◽  
pp. 4317-4322 ◽  
Author(s):  
Sabine Kuss ◽  
Rosa A. S. Couto ◽  
Rhiannon M. Evans ◽  
Hayley Lavender ◽  
Christoph C. Tang ◽  
...  
Keyword(s):  
Electrochemical Sensing ◽  
Sensing Platform

Highly Selective and Sensitive Molecularly Imprinting Electrochemical Sensing Platform for Bilirubin Detection in Saliva

2021 ◽  
pp. 106367
Author(s):  
Fatemeh Parnianchi ◽  
Soheila Kashanian ◽  
Maryam Nazari ◽  
Carlo Santoro ◽  
Paolo Bollella ◽  
...  
Keyword(s):  
Electrochemical Sensing ◽  
Molecularly Imprinting ◽  
Sensing Platform ◽  
Bilirubin Detection

Audio jack based miniaturized mobile phone electrochemical sensing platform

2015 ◽  
Vol 209 ◽  
pp. 677-685 ◽  
Author(s):  
Xinhao Wang ◽  
Manas Ranjan Gartia ◽  
Jing Jiang ◽  
Te-Wei Chang ◽  
Junle Qian ◽  
...  
Keyword(s):  
Mobile Phone ◽  
Electrochemical Sensing ◽  
Sensing Platform

The novel pillar[5]arene derivative for recyclable electrochemical sensing platform of homogeneous DNA hybridization

2016 ◽  
Vol 227 ◽  
pp. 497-503 ◽  
Author(s):  
Shuai Yang ◽  
Lijing Liu ◽  
Min You ◽  
Fan Zhang ◽  
Xiaojuan Liao ◽  
...  
Keyword(s):  
Dna Hybridization ◽  
Electrochemical Sensing ◽  
The Novel ◽  
Arene Derivative ◽  
Sensing Platform

Core-shell Cu@C@ZIF-8 composite: a high-performance electrode material for electrochemical sensing of nitrite with high selectivity and sensitivity

2021 ◽  
Author(s):  
Feng Gao ◽  
Xiaolong Tu ◽  
Yongfang Yu ◽  
Yansha Gao ◽  
Jin Zou ◽  
...  
Keyword(s):  
High Performance ◽  
High Selectivity ◽  
Limit Of Detection ◽  
Metal Organic Framework ◽  
High Sensitivity ◽  
Electrochemical Sensing ◽  
Core Shell ◽  
Zeolitic Imidazolate Framework ◽  
Sensing Platform ◽  
The Difference

Abstract Herein, an efficient electrochemical sensing platform is proposed for selective and sensitive detection of nitrite on the basis of Cu@C@Zeolitic imidazolate framework-8 (Cu@C@ZIF-8) heterostructure. Core-shell Cu@C@ZIF-8 composite was synthesized by pyrolysis of Cu-metal-organic framework@ZIF-8 (Cu-MOF@ZIF-8) in Ar atmosphere on account of the difference of thermal stability between Cu-MOF and ZIF-8. For the sensing system of Cu@C@ZIF-8, ZIF-8 with proper pore size allows nitrite diffuse through the shell, while big molecules cannot, which ensures high selectivity of the sensor. On the other hand, Cu@C as electrocatalyst promotes the oxidation of nitrite, thereby resulting high sensitivity of the sensor. Accordingly, the Cu@C@ZIF-8 based sensor presents excellent performance for nitrite detection, which achieves a wide linear response range of 0.1 µM to 300.0 µM, and a low limit of detection (LOD) of 0.033 µM. In addition, the Cu@C@ZIF-8 sensor possesses excellent stability and reproducibility, and was employed to quantify nitrite in sausage samples with recoveries of 95.45-104.80%.

Sign in / Sign up

Export Citation Format

Share Document