Facet-energy inspired metal oxide extended hexapods decorated with graphene quantum dots: sensitive detection of bisphenol A in live cells

Ashraf, Ghazala; Asif, Muhammad; Aziz, Ayesha; Dao, Anh Quang; Zhang, Tiansui; Iftikhar, Tayyaba; Wang, Qin; Liu, Hongfang

doi:10.1039/c9nr10944g

Cited by 37 publications

(19 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…GQDs have also been combined with 3D nanostructures [158,210], ionic liquids [87,162,163], MIPs [160,175], and other materials to exploit the nanocomposite material features in electrochemical applications, as illustrated in this section.…”

Section: Gqds Combined With Other Types Of Materialsmentioning

confidence: 99%

“…The fabricated platform was suitable for monitoring nitrite by amperometry (Figure 7B(iii)) in a wide linear range with an LOD of 6.4 µM. In another work, GQDs were synthesized on the surface of Cu 2 O-CuO hexapod-like (3D) structure via self-assembly, as illustrated in Figure 7C [210]. Benefitting from the synergistic effects of the enhanced active surface area, high conductivity, more exposed {111} facets of hexapod structure, and fast redox reaction due to π-electron delocalization of GQDs, the heterostructures offered outstanding electrocatalytic abilities compared to the pristine materials.…”

Section: Gqds Combined With Other Types Of Materialsmentioning

confidence: 99%

See 1 more Smart Citation

Graphene Quantum Dots-Based Nanocomposites Applied in Electrochemical Sensors: A Recent Survey

et al. 2021

View full text Add to dashboard Cite

Graphene quantum dots (GQDs) have been widely investigated in recent years due to their outstanding physicochemical properties. Their remarkable characteristics allied to their capability of being easily synthesized and combined with other materials have allowed their use as electrochemical sensing platforms. In this work, we survey recent applications of GQDs-based nanocomposites in electrochemical sensors and biosensors. Firstly, the main characteristics and synthesis methods of GQDs are addressed. Next, the strategies generally used to obtain the GQDs nanocomposites are discussed. Emphasis is given on the applications of GQDs combined with distinct 0D, 1D, 2D nanomaterials, metal-organic frameworks (MOFs), molecularly imprinted polymers (MIPs), ionic liquids, as well as other types of materials, in varied electrochemical sensors and biosensors for detecting analytes of environmental, medical, and agricultural interest. We also discuss the current trends and challenges towards real applications of GQDs in electrochemical sensors.

show abstract

Section: Gqds Combined With Other Types Of Materialsmentioning

confidence: 99%

Section: Gqds Combined With Other Types Of Materialsmentioning

confidence: 99%

Graphene Quantum Dots-Based Nanocomposites Applied in Electrochemical Sensors: A Recent Survey

et al. 2021

View full text Add to dashboard Cite

show abstract

“…[58] Therefore, the use of electrochemical nonenzymatic sensors based on diverse nanomaterials in sensitive and selective electrocatalytic oxidation of sulfides would be the best option to avoid aforementioned drawbacks. [60] The detailed comparison among analytical performances of various bacterial detection approaches has been placed in Table 1. Recently, Asif et al prepared Cu 2 O-CuO@Au NIs octadecahedral (ODH) nanoarchitectures through galvanic replacement process Figure 5A [13] and carbon nanotubes (CNTs) wrapped with CuMn layered double hydroxide (LDH) via coprecipitation approach [15a] and employed these nanomaterials in electrochemical sensing of sulfide released by SRB and A375 live cells.…”

Section: Srb Detection Based On Sulfide Sensingmentioning

confidence: 99%

Turning the Page: Advancing Detection Platforms for Sulfate Reducing Bacteria and their Perks

Asif

Aziz

Ashraf

et al. 2021

The Chemical Record

Self Cite

View full text Add to dashboard Cite

Sulfate reducing bacteria (SRB) are blamed as main culprits in triggering huge corrosion damages by microbiologically influenced corrosion. They obtained their energy through enzymatic conversion of sulfates to sulfides which are highly corrosive. However, conventional SRB detection methods are complex, time‐consuming and are not enough sensitive for reliable detection. The advanced biosensing technologies capable of overcoming the aforementioned drawbacks are in demand. So, nanomaterials being economical, environmental friendly and showing good electrocatalytic properties are promising candidates for electrochemical detection of SRB as compared with antibody based assays. Here, we summarize the recent advances in the detection of SRB using different techniques such as PCR, UV visible method, fluorometric method, immunosensors, electrochemical sensors and photoelectrochemical sensors. We also discuss the SRB detection based on determination of sulfide, typical metabolic product of SRB.

show abstract

“…(Liu et al, 2020;Sabbaghan et al, 2021;Xuan et al, 2021;Ghalkhani and Sohouli, 2022) The electroactive phenolic hydroxyl groups in BPA enable its detection by electrochemical sensing. To improve the detection sensitivity, researchers have used a variety of materials to modify the working electrode, including metal or metal oxide nanoparticles (Ashraf et al, 2020;Wang et al, 2020b;Yang et al, 2022), carbon materials (Yasri et al, 2015;Alam and Deen, 2020;Zhu et al, 2020;Ponnada et al, 2022;Wang et al, 2022), ionic liquids (Wang et al, 2018;Wang et al, 2021b), molecularly imprinted polymers (Beduk et al, 2020;Zhang et al, 2021), metals and covalent organic frameworks (Zhang et al, 2018;Pang et al, 2020), and aptamers (Hadi et al, 2016;Jun et al, 2020). However, these modified electrodes often require expensive reagents/ materials or complicated synthesis processes.…”

Section: Introductionmentioning

confidence: 99%

Direct and Sensitive Electrochemical Detection of Bisphenol A in Complex Environmental Samples Using a Simple and Convenient Nanochannel-Modified Electrode

Huang

Zhang

Dong³

et al. 2022

Front. Chem.

View full text Add to dashboard Cite

Rapid, convenient, and sensitive detection of Bisphenol A (BPA) in complex environmental samples without the need for tedious pre-treatment is crucial for assessing potential health risks. Herein, we present an electrochemical sensing platform using a simple nanochannel-modified electrode, which enables the direct and sensitive detection of BPA in complex samples. A vertically ordered mesoporous silica-nanochannel film (VMSF) with high-density nanochannels is rapidly and stably grown on the surface of a electrochemically activated glassy carbon electrode (p-GCE) by using the electrochemically assisted self-assembly (EASA) method. The high antifouling capability of the VMSF/p-GCE sensor is proven by investigating the electrochemical behavior of BPA in the presence of model coexisting interfering molecules including amylum, protein, surfactant, and humic acid. The VMSF/p-GCE sensor can sensitively detect BPA ranged from 50 to 1.0 μM and 1.0–10.0 μM, with low detection limits (15 nM). Owing to the electrocatalytic performance and high potential resolution of p-GCE, the sensor exhibits high selectivity for BPA detection in the presence of common environmental pollutants, including bisphenol S (BPS), catechol (CC), hydroquinone (HQ), and 4-nitrophenol (4-NP). In combination with the good antifouling property of the VMSF, direct detection of BPA in environmental water samples and soil leaching solution (SLS) is also realized without separation pretreatment. The developed VMSF/p-GCE sensor demonstrated advantages of simple structure, high sensitivity, good antifouling performance, and great potential in direct electroanalysis of endocrine-disrupting compounds in complex samples.

show abstract

Facet-energy inspired metal oxide extended hexapods decorated with graphene quantum dots: sensitive detection of bisphenol A in live cells

Abstract: Schematic presentation of Cu2O–CuO@GQD EHP fabrication and real-time detection of bisphenol A in live cells.

Cited by 37 publications

References 45 publications

Graphene Quantum Dots-Based Nanocomposites Applied in Electrochemical Sensors: A Recent Survey

Graphene Quantum Dots-Based Nanocomposites Applied in Electrochemical Sensors: A Recent Survey

Turning the Page: Advancing Detection Platforms for Sulfate Reducing Bacteria and their Perks

Direct and Sensitive Electrochemical Detection of Bisphenol A in Complex Environmental Samples Using a Simple and Convenient Nanochannel-Modified Electrode

Contact Info

Product

Resources

About