Trace level electrochemical determination of the neurotransmitter dopamine in biological samples based on iron oxide nanoparticle decorated graphene sheets

2018 ◽  
Vol 5 (3) ◽  
pp. 705-718 ◽  
Author(s):  
Thangavelu Kokulnathan ◽  
Allen Joseph Anthuvan ◽  
Shen-Ming Chen ◽  
Viswanathan Chinnuswamy ◽  
Krishna Kadirvelu
Keyword(s):  
Iron Oxide ◽  
Graphene Sheet ◽  
Modified Electrode ◽  
Biological Samples ◽  
Electrochemical Determination ◽  
Iron Oxide Nanoparticle ◽  
Graphene Sheets ◽  
Trace Level ◽  
Oxide Nanoparticle

The trace level electrochemical determination of dopamine in biological samples based on an iron oxide nanoparticle-capped graphene sheet modified electrode.

A novel iron oxide nanoparticle-based method for the determination of the antioxidant capacity of rapeseed oils at various stages of the refining process

2015 ◽  
Vol 7 (11) ◽  
pp. 4650-4660 ◽  
Author(s):  
Aleksandra Szydłowska-Czerniak ◽  
Anna Łaszewska ◽  
Agnieszka Tułodziecka
Keyword(s):  
Iron Oxide ◽  
Antioxidant Capacity ◽  
Iron Oxide Nanoparticles ◽  
Refining Process ◽  
Iron Oxide Nanoparticle ◽  
Oxide Nanoparticles ◽  
Novel Method ◽  
Oxide Nanoparticle ◽  
Capacity Determination

A novel method for antioxidant capacity determination based on the antioxidant-mediated generation and growth of iron oxide nanoparticles was elaborated.

A reliable protocol for colorimetric determination of iron oxide nanoparticle uptake by cells

2017 ◽  
Vol 409 (28) ◽  
pp. 6663-6675 ◽  
Author(s):  
Daiana K. Deda ◽  
Roberta M. Cardoso ◽  
Mayara K. Uchiyama ◽  
Christiane Pavani ◽  
Sergio H. Toma ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Iron Oxide Nanoparticle ◽  
Colorimetric Determination ◽  
Nanoparticle Uptake ◽  
Oxide Nanoparticle

Molecularly imprinted star polymer-modified superparamagnetic iron oxide nanoparticle for trace level sensing and separation of mancozeb

RSC Advances ◽  
2016 ◽  
Vol 6 (43) ◽  
pp. 36751-36760 ◽  
Author(s):  
Sunil Kumar ◽  
Paramita Karfa ◽  
Santanu Patra ◽  
Rashmi Madhuri ◽  
Prashant K. Sharma
Keyword(s):  
Iron Oxide ◽  
Superparamagnetic Iron Oxide ◽  
Star Polymer ◽  
Iron Oxide Nanoparticle ◽  
Trace Level ◽  
Molecularly Imprinted ◽  
Vegetable Samples ◽  
Oxide Nanoparticle ◽  
Superparamagnetic Iron Oxide Nanoparticle

Molecular imprinted star polymer for the sensing and separation of mancozeb (pesticide) from soil and vegetable samples.

Highly sensitive determination of salicylic acid in skin care product by means of carbon nanotube/iron oxide nanoparticle voltammetric sensors

2019 ◽  
Vol 23 (3) ◽  
pp. 783-793 ◽  
Author(s):  
Camila de Lima Ribeiro ◽  
João G. M. Santos ◽  
Jurandir R. Souza ◽  
Leonardo G. Paterno
Keyword(s):  
Salicylic Acid ◽  
Carbon Nanotube ◽  
Iron Oxide ◽  
Iron Oxide Nanoparticle ◽  
Voltammetric Sensors ◽  
Highly Sensitive ◽  
Skin Care Product ◽  
Sensitive Determination ◽  
Oxide Nanoparticle

Synergistic design of a tin phosphate-entrapped graphene flake nanocomposite as an efficient catalyst for electrochemical determination of the antituberculosis drug isoniazid in biological samples

2019 ◽  
Vol 6 (7) ◽  
pp. 1831-1841 ◽  
Author(s):  
Thangavelu Kokulnathan ◽  
V. Suvina ◽  
Tzyy-Jiann Wang ◽  
R. Geetha Balakrishna
Keyword(s):  
Modified Electrode ◽  
Electrochemical Detection ◽  
Biological Samples ◽  
Potential Application ◽  
Electrochemical Determination ◽  
Antituberculosis Drug ◽  
Graphene Flake ◽  
Efficient Catalyst

A SnP/GRF-modified electrode has potential application in the electrochemical detection of ISZ.

scholarly journals Sensitive SQUID Bio-Magnetometry for Determination and Differentiation of Biogenic Iron and Iron Oxide Nanoparticles in the Biological Samples

Nanomaterials ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 1993
Author(s):  
Martin Škrátek ◽  
Andrej Dvurečenskij ◽  
Michal Kluknavský ◽  
Andrej Barta ◽  
Peter Bališ ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Biological Samples ◽  
Superparamagnetic Iron Oxide ◽  
Histochemical Staining ◽  
Superoxide Production ◽  
Magnetic Characteristics ◽  
Iron Oxide Nanoparticle ◽  
Control Group ◽  
Wistar Kyoto

This study aimed to develop the method for determination of the ultra-small superparamagnetic iron oxide nanoparticle (USPION)-originated iron (UOI) in the tissues of rats on the basis of the magnetic characteristics (MC) in the liver, left heart ventricle (LHV), kidneys, aorta and blood of Wistar-Kyoto (WKY). Rats were treated intravenously by USPIONs dispersed in saline (transmission electron microscope (TEM) mean size ~30 nm, hydrodynamic size ~51 nm, nominal iron content 1 mg Fe/mL) at the low iron dose of 1 mg/kg. MC in the form of the mass magnetisation (M) versus the magnetic field (H) curves and temperature dependences of M (determined using the SQUID magnetometer), histochemical determination of iron (by Perl’s method) and USPION-induced superoxide production (by lucigenin-enhanced chemiluminescence) were investigated 100 min post-infusion. USPIONs significantly elevated superoxide production in the liver, LHV, kidney and aorta vs. the control group. Histochemical staining confirmed the presence of iron in all solid biological samples, however, this method was not suitable to unequivocally confirm the presence of UOI. We improved the SQUID magnetometric method and sample preparation to allow the determination of UOI by measurements of the MC of the tissues at 300 K in solid and liquid samples. The presence of the UOI was confirmed in all the tissues investigated in USPIONs-treated rats. The greatest levels were found in blood and lower amounts in the aorta, liver, LHV and kidneys. In conclusion, we have improved SQUID-magnetometric method to make it suitable for detection of low amounts of UOI in blood and tissues of rats.

Ecofriendly preparation of graphene sheets decorated with an ethylenediamine copper(ii) complex composite modified electrode for the selective detection of hydroquinone in water

2018 ◽  
Vol 5 (2) ◽  
pp. 490-500 ◽  
Author(s):  
Subramanian Sakthinathan ◽  
Thangavelu Kokulnathan ◽  
Shen-Ming Chen ◽  
Raj Karthik ◽  
Te-Wei Chiu
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Modified Electrode ◽  
Electrochemical Determination ◽  
Graphene Sheets ◽  
Selective Detection ◽  
Reduced Graphene ◽  
Ethylenediamine Complex

A reduced graphene oxide decorated copper(ii) ethylenediamine complex composite modified electrode was applied for the electrochemical determination of hydroquinone.

A hybrid nanosensor based on novel fluorescent iron oxide nanoparticles for highly selective determination of Hg2+ ion in environmental samples

2021 ◽  
Author(s):  
Süreyya Oğuz Tümay ◽  
Vildan Şanko ◽  
Ahmet Şenocak ◽  
Erhan Demirbaş
Keyword(s):  
Heavy Metal ◽  
Iron Oxide ◽  
Metal Ions ◽  
Environmental Samples ◽  
Heavy Metal Ions ◽  
Iron Oxide Nanoparticle ◽  
Oxide Nanoparticles ◽  
Selective Determination ◽  
Oxide Nanoparticle

The iron oxide nanoparticle-based chemosensors composed of fluorescent components have been recently examined as promising platforms for separation, imaging and especially determination applications for heavy metal ions. Among the heavy...

scholarly journals Reversible magnetism switching of iron oxide nanoparticle dispersions by controlled agglomeration

2021 ◽  
Author(s):  
Stephan Müssig ◽  
Björn Kuttich ◽  
Florian Fidler ◽  
Daniel Haddad ◽  
Susanne Wintzheimer ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Iron Oxide ◽  
Light Scattering ◽  
Superparamagnetic Iron Oxide ◽  
Iron Oxide Nanoparticle ◽  
Oxide Nanoparticles ◽  
X Ray ◽  
X Ray Scattering ◽  
Nanoparticle Dispersions ◽  
Oxide Nanoparticle

The controlled agglomeration of superparamagnetic iron oxide nanoparticles (SPIONs) was used to rapidly switch their magnetic properties. Small-angle X-ray scattering (SAXS) and dynamic light scattering showed that tailored iron oxide...

Iron Oxide Nanoparticle Coatings Dictate Cell Outcomes Despite the Influence of Protein Coronas

2021 ◽  
Vol 13 (7) ◽  
pp. 7924-7944
Author(s):  
Yadileiny Portilla ◽  
Sara Mellid ◽  
Alberto Paradela ◽  
Antonio Ramos-Fernández ◽  
Neus Daviu ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Iron Oxide Nanoparticle ◽  
Oxide Nanoparticle ◽  
Nanoparticle Coatings
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