Facile electrochemical detection of Escherichia coli using redox cycling of the product generated by the intracellular β-d-galactosidase

Noh, Soodong; Choe, Yun-Jeong; Tamilavan, Vellaiappillai; Hyun, Myung Ho; Kang, Ho Young; Yang, Haesik

doi:10.1016/j.snb.2014.12.073

Cited by 20 publications

(7 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The electrochemical detection of 4aminonaphthol amplified by an electrochemical-chemical redox cycling led to a detection limit of 10 5 CFU/mL for 30 min of IPTG treatment. By this method, a detection limit of 1.0 CFU/mL was reached with a 4-hour IPTG treatment, without DNA amplification or immunoassay protocol [37].…”

Section: ) Amperometric Biosensorsmentioning

confidence: 99%

“…In another study, a method for easy detection of E. coli has been established based on the enzymatic activity of intracellular -D-galactosidase (Gal) [36]. The bacteria was first treated with a gene expression inducer (isopropyl--Dthiogalactopyranoside IPTG), leading to the increase of the expression level of Gal inside E. coli.…”

Section: ) Amperometric Biosensorsmentioning

confidence: 99%

See 1 more Smart Citation

Recent Developments for the Detection of Escherichia Coli Biosensors Based on Nano-Objects—A Review

et al. 2022

View full text Add to dashboard Cite

HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.

show abstract

Section: ) Amperometric Biosensorsmentioning

confidence: 99%

Section: ) Amperometric Biosensorsmentioning

confidence: 99%

Recent Developments for the Detection of Escherichia Coli Biosensors Based on Nano-Objects—A Review

et al. 2022

View full text Add to dashboard Cite

show abstract

“…The proposed system is comparable with or even better than other enzyme-based assays. [33][34][35][36][37][38] More importantly, peptide functionalized magnetic beads offer the benefits of simplicity, speed, stable and flexibility to perform potentiometric detection based on surface charge change. The detection time is shorter than most commercially available detection kits for E. coli.…”

Section: Potentiometric Detection Of E Colimentioning

confidence: 99%

Magneto-controlled potentiometric assay for E. coli based on cleavage of peptide by outer-membrane protease T

Zhang

Mou

Ding

et al. 2021

Electrochimica Acta

View full text Add to dashboard Cite

“…17b. In this type of biosensor, antigens are specifically bound to the sensing surface to ensure the close proximity of the signaling 100,101 Moreover, the modification of the ITO surface by reduced grapheme oxide could further improve the biosensing performance for BoNT/E-LC. 102 Thus, the discussion of this section clearly justifies the excellent biosensing performance achieved by redox cycling, and when the antigen itself is electroactive, then it can produce a redox-cycling-based signal amplification (following Fig.…”

Section: +mentioning

confidence: 99%

Review—Recent Advancements in the Utilization of Indium Tin Oxide (ITO) in Electroanalysis without Surface Modification

Akanda

Osman

Nazal

et al. 2020

J. Electrochem. Soc.

View full text Add to dashboard Cite

Indium tin oxide (ITO), as an electrode, has superiority over metal electrodes commonly used for electroanalysis due to its low cost, low electrochemical background response, wide working potential window, easy surface functionalization and commercial availability. However, researchers have often modified its surface with electron mediators/electrocatalysts to improve its electrocatalytic properties. The modification of the ITO surface with electron mediators/electrocatalysts is tedious, time consuming, and expensive and often suffers from reproducibility problems. As an alternative to this modification step, scientists have tried to develop different strategies to utilize ITO without modification by electron mediators/electrocatalysts. The suitability of bare ITO electrodes i) to obtain potential electrochemical responses from some electroactive species with high signal to noise (S/N) ratios and ii) to possibly improve the S/N ratio with additional signal amplifying systems make it a very lucrative tool for electrochemists. To promote its advancement, it is of great significance to summarize the recent advances and to highlight its excellence in electroanalysis. Thus, this review summarizes literature published up to 2019, focusing specifically on self-electrocatalytic properties of ITO toward suitable electroactive molecules and signal amplification strategies from bare/electroinactive-binder-modified ITO platforms and evaluating their performance in electrochemical sensing. In addition, the review outlines the scope for further research in this context.

show abstract

Facile electrochemical detection of Escherichia coli using redox cycling of the product generated by the intracellular β-d-galactosidase

Cited by 20 publications

References 34 publications

Recent Developments for the Detection of Escherichia Coli Biosensors Based on Nano-Objects—A Review

Recent Developments for the Detection of Escherichia Coli Biosensors Based on Nano-Objects—A Review

Magneto-controlled potentiometric assay for E. coli based on cleavage of peptide by outer-membrane protease T

Review—Recent Advancements in the Utilization of Indium Tin Oxide (ITO) in Electroanalysis without Surface Modification

Contact Info

Product

Resources

About