A novel electrochemical biosensor based on hemin functionalized graphene oxide sheets for simultaneous determination of ascorbic acid, dopamine and uric acid

HL Zou, BL Li, HQ Luo, NB Li - Sensors and Actuators B: Chemical, 2015 - Elsevier
Graphene oxide (GO) has been demonstrated to be functionalized by hemin without any
other reducing agents and the hemin functionalized graphene oxide (H-GO) hybrid …

Nitro-oxidative species in vivo biosensing: challenges and advances with focus on peroxynitrite quantification

SF Peteu, R Boukherroub, S Szunerits - Biosensors and Bioelectronics, 2014 - Elsevier
The importance of the so-called reactive nitrogen and oxygen species (RNOS) in biology
and food technology has been widely recognized. However when these species are in …

Laser-scribed graphene presents an opportunity to print a new generation of disposable electrochemical sensors

K Griffiths, C Dale, J Hedley, MD Kowal, RB Kaner… - Nanoscale, 2014 - pubs.rsc.org
Graphene application within electrochemical sensing has been widely reported, but mainly
as a composite, which adds summative effects to an underlying electrode. In this work we …

Synthetic melanin nanoparticles as peroxynitrite scavengers, photothermal anticancer and heavy metals removal platforms

S Maher, M Mahmoud, M Rizk, H Kalil - Environmental Science and …, 2020 - Springer
Melanin is a ubiquitous natural polyphenolic pigment with versatile applications including
physiological functions. This polymeric material is found in a diversity of living organisms …

Cu-hemin metal-organic-frameworks/chitosan-reduced graphene oxide nanocomposites with peroxidase-like bioactivity for electrochemical sensing

L Wang, H Yang, J He, Y Zhang, J Yu, Y Song - Electrochimica Acta, 2016 - Elsevier
Herein, a Cu-hemin metal-organic-frameworks (MOFs)/chitosan (CS)-reduced graphene
oxide (CS-rGO) nanocomposite with unique peroxidase-like bioactivity and good electrical …

Sustainable and cascaded catalytic hairpin assembly for amplified sensing of microRNA biomarkers in living cells

X Li, F Yang, C Gan, R Yuan, Y **ang - Biosensors and Bioelectronics, 2022 - Elsevier
The sensing of intracellular microRNAs (miRNAs) is of significance for early-stage disease
diagnosis and therapeutic monitoring. DNA is an interesting building material that can be …

Hierarchical Ni(OH)2/Polypyrrole/Graphene Oxide Nanosheets as Excellent Electrocatalysts for the Oxidation of Urea

Z Cao, H Mao, X Guo, D Sun, Z Sun… - ACS Sustainable …, 2018 - ACS Publications
Two kinds of Ni (OH) 2 nanostructures, including thin nanosheets (NSs) with a thickness of
15–20 nm and very small nanoparticles (NPs) with a diameter of 2–3 nm, were immobilized …

Cobalt phthalocyanine tetracarboxylic acid modified reduced graphene oxide: a sensitive matrix for the electrocatalytic detection of peroxynitrite and hydrogen …

IS Hosu, Q Wang, A Vasilescu, SF Peteu, V Raditoiu… - RSC …, 2015 - pubs.rsc.org
The quantification of peroxynitrite (ONOO−, PON) and hydrogen peroxide (H2O2) is
intrinsically difficult as both species show similar oxidative features located within a narrow …

Preparation of alanine and tyrosine functionalized graphene oxide nanoflakes and their modified carbon paste electrodes for the determination of dopamine

M Kumar, BEK Swamy, MHM Asif… - Applied Surface Science, 2017 - Elsevier
Herein, established the synthesis of graphene oxide (GO) by Hummers Method with addition
of KMnO 4 followed by thermal heating at 80° C. The obtained GO was further functionalized …

A novel Fe-hemin-metal organic frameworks supported on chitosan-reduced graphene oxide for real-time monitoring of H2O2 released from living cells

P Zhao, S Chen, J Zhou, S Zhang, D Huo, C Hou - Analytica Chimica Acta, 2020 - Elsevier
Herein, a kind of novel hemin-based metal organic frameworks (Fe-hemin-MOFs) with
unique peroxidase-like bioactivity was developed for the first time. The synthesized Fe …