scholarly journals Correction to: A label-free biosensor based on graphene and reduced graphene oxide dual-layer for electrochemical determination of beta-amyloid biomarkers

2020 ◽  
Vol 187 (6) ◽  
Author(s):  
Jagriti Sethi ◽  
Michiel Van Bulck ◽  
Ahmed Suhail ◽  
Mina Safarzadeh ◽  
Ana Perez-Castillo ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Beta Amyloid ◽  
Electrochemical Determination ◽  
Label Free ◽  
Reduced Graphene

scholarly journals A label-free biosensor based on graphene and reduced graphene oxide dual-layer for electrochemical determination of beta-amyloid biomarkers

2020 ◽  
Vol 187 (5) ◽  
Author(s):  
Jagriti Sethi ◽  
Michiel Van Bulck ◽  
Ahmed Suhail ◽  
Mina Safarzadeh ◽  
Ana Perez-Castillo ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Limit Of Detection ◽  
Electrochemical Techniques ◽  
Differential Pulse ◽  
Electrochemical Determination ◽  
Label Free ◽  
Reduced Graphene ◽  
Electrochemically Reduced Graphene Oxide

AbstractA label-free biosensor is developed for the determination of plasma-based Aβ1–42 biomarker in Alzheimer’s disease (AD). The platform is based on highly conductive dual-layer of graphene and electrochemically reduced graphene oxide (rGO). The modification of dual-layer with 1-pyrenebutyric acid N-hydroxysuccinimide ester (Pyr-NHS) is achieved to facilitate immobilization of H31L21 antibody. The effect of these modifications were studied with morphological, spectral and electrochemical techniques. The response of the biosensor was evaluated using differential pulse voltammetry (DPV). The data was acquired at a working potential of ~ 180 mV and a scan rate of 50 mV s−1. A low limit of detection (LOD) of 2.398 pM is achieved over a wide linear range from 11 pM to 55 nM. The biosensor exhibits excellent specificity over Aβ1–40 and ApoE ε4 interfering species. Thus, it provides a viable tool for electrochemical determination of Aβ1–42. Spiked human and mice plasmas were used for the successful validation of the sensing platform in bio-fluidic samples. The results obtained from mice plasma analysis concurred with the immunohistochemistry (IHC) and magnetic resonance imaging (MRI) data obtained from brain analysis.

Electrochemical Determination of Isoniazid Using Gallic Acid Supported Reduced Graphene Oxide

2017 ◽  
Vol 164 (7) ◽  
pp. H503-H508 ◽  
Author(s):  
Paramasivam Balasubramanian ◽  
Balamurugan Thirumalraj ◽  
Shen-Ming Chen ◽  
Palani Barathi
Keyword(s):  
Graphene Oxide ◽  
Gallic Acid ◽  
Reduced Graphene Oxide ◽  
Electrochemical Determination ◽  
Reduced Graphene

Hexammine cobalt(iii) coordination complex grafted reduced graphene oxide composite for sensitive and selective electrochemical determination of morin in fruit samples

2018 ◽  
Vol 5 (5) ◽  
pp. 1145-1155 ◽  
Author(s):  
Thangavelu Kokulnathan ◽  
Subramanian Sakthinathan ◽  
Shen-Ming Chen ◽  
Raj Karthik ◽  
Te-Wei Chiu
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Electrochemical Detection ◽  
Electrochemical Determination ◽  
Coordination Complex ◽  
Oxide Composite ◽  
Reduced Graphene ◽  
Fruit Samples

The RGO/[Co(NH3)6]3+/GCE modified GCE was potentially applied for the electrochemical detection of MR.

Electrochemical Determination of Bisphenol A in Saliva by a Novel Three-Dimensional (3D) Printed Gold-Reduced Graphene Oxide (rGO) Composite Paste Electrode

2019 ◽  
Vol 52 (16) ◽  
pp. 2583-2606 ◽  
Author(s):  
Livia Alexandra Gugoasa ◽  
Raluca-Ioana Stefan-van Staden ◽  
Jacobus Frederick van Staden ◽  
Maria Coroș ◽  
Stela Pruneanu
Keyword(s):  
Graphene Oxide ◽  
Bisphenol A ◽  
Reduced Graphene Oxide ◽  
Three Dimensional ◽  
Electrochemical Determination ◽  
Reduced Graphene ◽  
3D Printed ◽  
Paste Electrode
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