Highly Sensitive Trimetazidine Determination Using Composite Yttria-Stabilized Zirconia Doped with Titanium Oxide–Carbon Black Biosensor DOI Open Access
Małgorzata Suchanek, Agata Krakowska, Beata Paczosa‐Bator

et al.

Materials, Journal Year: 2024, Volume and Issue: 17(22), P. 5556 - 5556

Published: Nov. 14, 2024

A novel composite voltammetric biosensor has been developed for the first time, utilizing a glassy carbon electrode modified with yttria-stabilized zirconia doped titanium dioxide and black (YSZTiO2-CB/GCE), specifically designed detection of trimetazidine (TMZ). The measurement conditions, including both supporting electrolyte instrumental settings, were optimized to enhance performance. In concentration range 0.5 7 µM, it is not necessary use preconcentration time determination TMZ. limit (for 60 s time) was equal 5.5 nM (1.87 ng mL-1), outperforming other methods in terms sensitivity. reproducibility signal (with 0.05 µM) exhibited relative standard deviation (RSD) 3.3% over 10 measurements. Additionally, our characterized by excellent stability, ease use, straightforward preparation. proposed method have proven effective analyzing TMZ variety matrices, urine, blood plasma, pharmaceutical formulations, as well gastric intestinal fluids, yielding recovery rates ranging from 97.7 102.3%.

Language: Английский

Selective detection of riboflavin biomolecule via electroreduction over laser induced graphene-anchored iron nanoparticles using spectroelectrochemistry DOI
Dheeraj Singh Chauhan, Rahul Gupta, Nishith Verma

et al.

Electrochimica Acta, Journal Year: 2025, Volume and Issue: 513, P. 145603 - 145603

Published: Jan. 1, 2025

Language: Английский

Citations

0
Biomass-Derived Laser-Induced Graphene Doped with Nitrogen and Sulfur for Enhanced Supercapacitor Performance DOI Creative Commons

Linjie Du,

Bu Quan,

Xu Zhang

et al.

Carbon, Journal Year: 2025, Volume and Issue: unknown, P. 120225 - 120225

Published: March 1, 2025

Language: Английский

Citations

0
Design of Porous 3D Interdigitated Current Collectors and Hybrid Microcathodes for Zn-Ion Microcapacitors DOI Creative Commons

Yujia Fan,

N. Naresh, Yijia Zhu

et al.

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: March 25, 2025

Zinc-ion microcapacitors (ZIMCs) have gained considerable attention for their intrinsic charge storage mechanisms, combining a battery-type anode with capacitor-type cathode. However, development is constrained by challenges related to electrode material selection and microscale device design, especially given the limited footprint of such devices. Despite potential, exploration smart processing hybrid materials on-chip ZIMCs remains limited. In this work, we introduce 3D gold interdigitated electrodes (3D Au IDEs) as highly porous current collectors, loaded zinc (Zn) activated carbon coated PEDOT (AC-PEDOT) cathode, using an advanced microplotter fabrication technique. Compared planar Zn//AC ZIMCs, where Zn AC are onto IDEs, Zn//AC-PEDOT demonstrate significantly enhanced performance. This attributed critical role IDEs in increasing capacity, improving long-term cycling stability, boosting capacitive-controlled contributions. The achieve areal capacity 1.3 μAh/cm2, peak energy 1.11 μWh/cm2, power 640 μW/cm2, surpassing most reported microsupercapacitors. study highlights how optimized collectors enhance microdevice while maximizing performance within footprint.

Language: Английский

Citations

0
An electrochemical sensor for dopamine on a graphene-poly(3,4-ethylenedioxythiophene):polystyrene sulphonate hybrid ink nanoplatform DOI Creative Commons

Sesethu Makaluza,

Nyasha Midzi,

Foluke O. G. Olorundare

et al.

Deleted Journal, Journal Year: 2025, Volume and Issue: 7(4)

Published: April 1, 2025

Abstract Dopamine can be used as a biomarker for diseases such Alzheimer’s, bipolar disorder, schizophrenia, mania, to mention few, well addiction tobacco. Thus, its measurement is of biomedical importance. We present an easy-to-construct, one-step, electrochemical sensor dopamine based on drop coating commercial graphene/poly (3,4-ethylenedioxythiophene):polystyrene sulphonate (Gr-PEDOT:PSS) hybrid ink dispersion bare glassy carbon electrode surface. The conductive polymer’s structural properties and composition were explored using XRD, Raman, FTIR spectroscopy electron microscopy. nanocomposite exhibited uniform size distribution functional groups aromatic, thiol, olefinic bonds improved the surface chemistry between electrolyte/analyte electrode. Characterization through impedance voltammetry demonstrated that Gr-PEDOT:PSS significantly enhances transfer kinetics at therefore improve electrooxidation dopamine. achieved detection limit 0.19 µM within linear concentration range 3.13–400 It also high selectivity against potential interfering agents like ascorbic acid, caffeine, urea, with recovery percentages ranging from 105 109% in human serum samples.

Language: Английский

Citations

0
Boosting supercapacitor performance and thermal stability: transforming PANI nanorods into a ternary interconnected mesh structure DOI

Bhawna Verma,

Gita Rani, Sanju Bala Dhull

et al.

Emergent Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 2, 2025

Language: Английский

Citations

0
Electroactive covalent linkers for enhancing conducting polymer adhesion, charge transfer, and biological integration of PEDOT-coated carbon microfibers DOI Creative Commons
Myriam Barrejón, Hugo Vara, Alexandra Alves-Sampaio

et al.

Carbon, Journal Year: 2024, Volume and Issue: 232, P. 119820 - 119820

Published: Nov. 12, 2024

Language: Английский

Citations

1
Highly Sensitive Trimetazidine Determination Using Composite Yttria-Stabilized Zirconia Doped with Titanium Oxide–Carbon Black Biosensor DOI Open Access
Małgorzata Suchanek, Agata Krakowska, Beata Paczosa‐Bator

et al.

Materials, Journal Year: 2024, Volume and Issue: 17(22), P. 5556 - 5556

Published: Nov. 14, 2024

A novel composite voltammetric biosensor has been developed for the first time, utilizing a glassy carbon electrode modified with yttria-stabilized zirconia doped titanium dioxide and black (YSZTiO2-CB/GCE), specifically designed detection of trimetazidine (TMZ). The measurement conditions, including both supporting electrolyte instrumental settings, were optimized to enhance performance. In concentration range 0.5 7 µM, it is not necessary use preconcentration time determination TMZ. limit (for 60 s time) was equal 5.5 nM (1.87 ng mL-1), outperforming other methods in terms sensitivity. reproducibility signal (with 0.05 µM) exhibited relative standard deviation (RSD) 3.3% over 10 measurements. Additionally, our characterized by excellent stability, ease use, straightforward preparation. proposed method have proven effective analyzing TMZ variety matrices, urine, blood plasma, pharmaceutical formulations, as well gastric intestinal fluids, yielding recovery rates ranging from 97.7 102.3%.

Language: Английский

Citations

1