Highly sensitive electrochemical detection of bisphenol A based on the cooperative enhancement effect of the graphene–Ni(OH)2 hybrid and hexadecyltrimethylammonium bromide

2015 ◽  
Vol 7 (21) ◽  
pp. 9261-9267 ◽  
Author(s):  
Rui Wang ◽  
Kangbing Wu ◽  
Can Wu
Keyword(s):  
Bisphenol A ◽  
Electrochemical Detection ◽  
Graphite Powder ◽  
Graphene Sheets ◽  
Enhancement Effect ◽  
Hexadecyltrimethylammonium Bromide ◽  
Highly Sensitive ◽  
One Step

Graphene sheets (GSs) are first easily prepared via one-step solvent exfoliation of graphite powder in N-methyl-2-pyrrolidone (NMP) and then hybridized with Ni(OH)2 microparticles.

Sub-nanometer sized Cu6(GSH)3 clusters: one-step synthesis and electrochemical detection of glucose

2015 ◽  
Vol 3 (16) ◽  
pp. 4050-4056 ◽  
Author(s):  
Xiaohui Gao ◽  
Yizhong Lu ◽  
Minmin Liu ◽  
Shuijian He ◽  
Wei Chen
Keyword(s):  
Electrochemical Detection ◽  
High Performance ◽  
Enhancement Effect ◽  
Aggregation Induced Emission ◽  
Emission Enhancement ◽  
One Step ◽  
Cu Nanoclusters

l-Glutathione-protected Cu nanoclusters were synthesized and they exhibit the aggregation-induced emission enhancement effect and high performance for electrochemical detection of glucose.

scholarly journals Analysis and validation of a highly sensitive one-step nested quantitative real-time polymerase chain reaction assay for specific detection of severe acute respiratory syndrome coronavirus 2

2020 ◽  
Vol 17 (1) ◽  
Author(s):  
Yang Zhang ◽  
Chunyang Dai ◽  
Huiyan Wang ◽  
Yong Gao ◽  
Tuantuan Li ◽  
...  
Keyword(s):  
Polymerase Chain Reaction ◽  
Real Time ◽  
Quantitative Polymerase Chain Reaction ◽  
Clinical Samples ◽  
Chain Reaction ◽  
Pcr Assay ◽  
Qrt Pcr ◽  
Highly Sensitive ◽  
One Step ◽  
Polymerase Chain

Abstract Background Coronavirus disease 2019 (COVID-19), caused by SARS-CoV-2, is posing a serious threat to global public health. Reverse transcriptase real-time quantitative polymerase chain reaction (qRT-PCR) is widely used as the gold standard for clinical detection of SARS-CoV-2. Due to technical limitations, the reported positive rates of qRT-PCR assay of throat swab samples vary from 30 to 60%. Therefore, the evaluation of alternative strategies to overcome the limitations of qRT-PCR is required. A previous study reported that one-step nested (OSN)-qRT-PCR revealed better suitability for detecting SARS-CoV-2. However, information on the analytical performance of OSN-qRT-PCR is insufficient. Method In this study, we aimed to analyze OSN-qRT-PCR by comparing it with droplet digital PCR (ddPCR) and qRT-PCR by using a dilution series of SARS-CoV-2 pseudoviral RNA and a quality assessment panel. The clinical performance of OSN-qRT-PCR was also validated and compared with ddPCR and qRT-PCR using specimens from COVID-19 patients. Result The limit of detection (copies/ml) of qRT-PCR, ddPCR, and OSN-qRT-PCR were 520.1 (95% CI: 363.23–1145.69) for ORF1ab and 528.1 (95% CI: 347.7–1248.7) for N, 401.8 (95% CI: 284.8–938.3) for ORF1ab and 336.8 (95% CI: 244.6–792.5) for N, and 194.74 (95% CI: 139.7–430.9) for ORF1ab and 189.1 (95% CI: 130.9–433.9) for N, respectively. Of the 34 clinical samples from COVID-19 patients, the positive rates of OSN-qRT-PCR, ddPCR, and qRT-PCR were 82.35% (28/34), 67.65% (23/34), and 58.82% (20/34), respectively. Conclusion In conclusion, the highly sensitive and specific OSN-qRT-PCR assay is superior to ddPCR and qRT-PCR assays, showing great potential as a technique for detection of SARS-CoV-2 in patients with low viral loads.

Synthesis of highly sensitive rGO@CNT@Fe2O3/polypyrrole nanocomposite for the electrochemical detection of Pb2+

2021 ◽  
Vol 26 ◽  
pp. 102005
Author(s):  
Balla Fall ◽  
Abdou K.D. Diaw ◽  
Modou Fall ◽  
Mohamed L. Sall ◽  
Momath Lo ◽  
...  
Keyword(s):  
Electrochemical Detection ◽  
Highly Sensitive

scholarly journals Direct Electrochemical Detection of Bisphenol A Using a Highly Conductive Graphite Nanoparticle Film Electrode

Sensors ◽  
2017 ◽  
Vol 17 (4) ◽  
pp. 836 ◽  
Author(s):  
Xinwei Dong ◽  
Xiaoli Qi ◽  
Na Liu ◽  
Yuesuo Yang ◽  
Yunxian Piao
Keyword(s):  
Bisphenol A ◽  
Electrochemical Detection ◽  
Film Electrode ◽  
Nanoparticle Film
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