Design strategy of rGO–HNT–AgNPs based hybrid nanocomposite with enhanced performance for electrochemical detection of 4-nitrophenol

2020 ◽  
Vol 7 (10) ◽  
pp. 1981-1994 ◽  
Author(s):  
Kuo-Yuan Hwa ◽  
Tata Sanjay Kanna Sharma ◽  
Anindita Ganguly
Keyword(s):  
Silver Nanoparticles ◽  
Graphene Oxide ◽  
Electrochemical Sensor ◽  
Reduced Graphene Oxide ◽  
Electrochemical Detection ◽  
Design Strategy ◽  
Halloysite Nanotubes ◽  
Hybrid Nanocomposite ◽  
Reduced Graphene

We report a highly precise and sensitive electrochemical sensor to detect 4-nitrophenol based on halloysite nanotubes with silver nanoparticles decorated on reduced graphene oxide.

scholarly journals A reduced graphene oxide-β-cyclodextrin nanocomposite-based electrode for electrochemical detection of curcumin

RSC Advances ◽  
2021 ◽  
Vol 11 (14) ◽  
pp. 7862-7872
Author(s):  
Behzad Mirzaei ◽  
Ali Zarrabi ◽  
Abdollah Noorbakhsh ◽  
Abbas Amini ◽  
Pooyan Makvandi
Keyword(s):  
Graphene Oxide ◽  
Electrochemical Sensor ◽  
Reduced Graphene Oxide ◽  
Electrochemical Detection ◽  
Beta Cyclodextrin ◽  
Reduced Graphene

In this study, a sensitive electrochemical sensor was fabricated based on a beta-cyclodextrin–reduced graphene oxide (β-CD–rGO) nanocomposite for measuring curcumin concentration.

Sensitive electrochemical detection of nitric oxide based on AuPt and reduced graphene oxide nanocomposites

The Analyst ◽  
2016 ◽  
Vol 141 (13) ◽  
pp. 4074-4083 ◽  
Author(s):  
Zhonggang Liu ◽  
Heidi Forsyth ◽  
Neelam Khaper ◽  
Aicheng Chen
Keyword(s):  
Nitric Oxide ◽  
Graphene Oxide ◽  
Electrochemical Sensor ◽  
Reduced Graphene Oxide ◽  
Electrochemical Detection ◽  
High Performance ◽  
Reduced Graphene

A high-performance electrochemical sensor with AuPt nanoparticles and reduced graphene oxide nanocomposites is demonstrated for the effective detection of NO.

Ultrafine Pt–Ni bimetallic nanoparticles anchored on reduced graphene oxide nanocomposites for boosting electrochemical detection of dopamine in biological samples

2018 ◽  
Vol 42 (20) ◽  
pp. 16891-16901 ◽  
Author(s):  
Y. Veera Manohara Reddy ◽  
Bathinapatla Sravani ◽  
Hussen Maseed ◽  
T. Łuczak ◽  
M. Osińska ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Electrochemical Sensor ◽  
Reduced Graphene Oxide ◽  
Electrochemical Detection ◽  
Biological Samples ◽  
Bimetallic Nanoparticles ◽  
Present Report ◽  
Reduced Graphene

The present report demonstrates the development of a Pt–Ni/rGO composite electrochemical sensor for the detection of dopamine.

An Ag–TiO2–reduced graphene oxide hybrid film for electrochemical detection of 8-hydroxy-2′-deoxyguanosine as an oxidative DNA damage biomarker

2020 ◽  
Vol 12 (4) ◽  
pp. 499-506 ◽  
Author(s):  
Ayad Jirjees Dhulkefl ◽  
Keziban Atacan ◽  
Salih Zeki Bas ◽  
Mustafa Ozmen
Keyword(s):  
Dna Damage ◽  
Graphene Oxide ◽  
Electrochemical Sensor ◽  
Reduced Graphene Oxide ◽  
Electrochemical Detection ◽  
Oxidative Dna Damage ◽  
Hybrid Film ◽  
Hybrid Nanomaterial ◽  
Reduced Graphene

Here, a notably sensitive and selective electrochemical sensor based on an Ag–TiO2–rGO hybrid nanomaterial modified SPE was developed for 8-OHdG detection, which is a significant DNA biomarker due to one of the main products of oxidative DNA damage.

Electrocatalytic Reduction of Hydrogen Peroxide and Its Non-Enzymatic Electrochemical Detection Using Silver Nanoparticles Anchored on Reduced Graphene Oxide

2019 ◽  
Vol 19 (11) ◽  
pp. 7054-7063 ◽  
Author(s):  
Nurul Izrini Ikhsan ◽  
Perumal Rameshkumar ◽  
Norazriena Yusoff ◽  
Nay Ming Huang
Keyword(s):  
Hydrogen Peroxide ◽  
Silver Nanoparticles ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Electrochemical Detection ◽  
Average Particle Size ◽  
Slight Modification ◽  
Cyclic Voltammograms ◽  
Average Particle ◽  
Reduced Graphene

Silver-reduced graphene oxide (Ag-rGO) nanohybrid was synthesized by applying a slight modification to the Turkevich method using trisodium citrate as a reducing and stabilizing agent to catalyze the non-enzymatic electrochemical detection of hydrogen peroxide (H2O2). Spherical silver nanoparticles (AgNPs) with an average particle size of 2.2 nm surfaced on reduced graphene oxide (rGO) sheets. Cyclic voltammograms (CV) obtained from glassy carbon (GC) electrode coated with Ag-rGO nanohybrid (4 mM) exhibited a peak at an overpotential of -0.52 V, with a larger faradaic current for the reduction of H2O2. Using the modified electrode for the linear sweep voltammetry (LSV) detection of H2O2, the detection limit and sensitivity were determined to be 4.8 μM (S/N ═ 3) and 0.0262 μA μM−1, respectively. The sensor appeared selective and stable towards H2O2 in the presence of possible interference, and it also demonstrated good recoveries of H2O2 concentration in real water samples.

scholarly journals Evaluation of a Reduced Graphene Oxide-Sb Nanoparticles Electrochemical Sensor for the Detection of Cadmium and Lead in Chamomile Tea

Chemosensors ◽  
2020 ◽  
Vol 8 (3) ◽  
pp. 53
Author(s):  
Erik W. Nunes ◽  
Martin K. L. Silva ◽  
Ivana Cesarino
Keyword(s):  
Heavy Metals ◽  
Graphene Oxide ◽  
Electrochemical Sensor ◽  
Reduced Graphene Oxide ◽  
Electrochemical Detection ◽  
Cadmium Ions ◽  
Reduced Graphene ◽  
The Individual ◽  
Cadmium And Lead

The development of electroanalytical sensors for heavy metals detection in complex matrices holds great interest. Herein, a sensor based on a reduced graphene oxide (rGO) modified with antimony nanoparticles (Sb) was developed for the electrochemical detection of divalent cadmium ions (Cd2+) and lead ions (Pb2+). The simultaneous determination of both metals covered a range of 0.1 to 3.0 µmol L−1, with limits of detection (LOD) of 70.03 and 45.50 nmol L−1 for Cd2+ and Pb2+, respectively. For the individual detection, LOD of 20.50 nmol L−1 (Cd2+) and 2.01 nmol L−1 (Pb2+) were found. The analytical performance of this new sensor in detecting both metals in chamomile tea samples was satisfactorily evaluated.

Cuprous oxide microspheres on graphene nanosheets: an enhanced material for non-enzymatic electrochemical detection of H2O2 and glucose

RSC Advances ◽  
2015 ◽  
Vol 5 (44) ◽  
pp. 35338-35345 ◽  
Author(s):  
Junwei Ding ◽  
Wei Sun ◽  
Gang Wei ◽  
Zhiqiang Su
Keyword(s):  
Graphene Oxide ◽  
Electrochemical Sensor ◽  
Reduced Graphene Oxide ◽  
Electrochemical Detection ◽  
Cuprous Oxide ◽  
Graphene Nanosheets ◽  
Graphene Oxide Nanosheets ◽  
Sensor Material ◽  
Reduced Graphene

Reduced graphene oxide nanosheets decorated with cuprous oxide microspheres show improved performances as a novel electrochemical sensor material.

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