PVP-Assisted Fe-Doped Carbon Dots as Robust Nanozymes for Visual H2O2 Sensing DOI
Anteneh F. Baye,

Lidya Ashenafi,

Shimelis Kebede Kassahun

et al.

ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 19, 2024

Iron-doped carbon dots (Fe-CDs) exhibit exceptional peroxidase-like activity and are utilized for colorimetric sensing of hydrogen peroxide (H2O2). However, the Fe–H2O2 system falls short generating reactive oxygen species oxidizing TMB (3,3′,5,5′-tetramethylbenzidine) due to Fe aggregation uneven dispersion, resulting in less sensitive H2O2. This study synthesized polymer-assisted Fe-doped CDs with remarkable peroxidase-mimicking through hydrothermal carbonization waste orange peel iron chloride salt. Different types polymers, such as PAN, PVP, PVA, PS, cellulose acetate, were used engineer surface CD successful uniformity doping. Among PVP appropriate molecular weight acts an efficient dispersant prevent regulate size Fe. On other hand, act Lewis acid sites chromogen substrate (hard base) adsorption. The intense interaction between ultrafine CDs/PVP matrix shows excellent peroxidase activating H2O2 TMB. Notably, nanozyme Fe-CD/PVP demonstrates high selectivity concentrated interferences, a low detection limit (52 nM). Moreover, was successfully sense milk.

Language: Английский

Gold Nanoclusters Stabilized with Dopa-Containing Ligands: Catalyst-Indicator Integrated Probe for Tumor Cell Screening DOI

Jin-Ao Li,

Nana Pan,

Zichun Qi

et al.

Talanta, Journal Year: 2024, Volume and Issue: 282, P. 126980 - 126980

Published: Oct. 2, 2024

Citations

2
Excellent performance of Ag6Si2O7 oxidase mimic endowed by self-released ions for rapid colorimetric determination with reduced operational interference DOI

Miaomiao Song,

W. F. Mader

Microchemical Journal, Journal Year: 2024, Volume and Issue: 205, P. 111319 - 111319

Published: July 30, 2024

Language: Английский

Citations

1
3D-Nanoflower and Nanoparticles-Decorated Iodine-Doped Polymer Hybrid Films for Non-Enzymatic Glucose Sensing DOI

Bansod Sneha Bharat,

Anju R. Babu

Sensors and Actuators A Physical, Journal Year: 2024, Volume and Issue: unknown, P. 116191 - 116191

Published: Dec. 1, 2024

Language: Английский

Citations

1
Based on thiourea-modified PTC, a self-enhanced ECL luminescent reagents and feathered Au@NiCo2O4 assembled ECL immunosensor are used for high sensitivity detection of hepatitis B surface antigen DOI
Jie Dong, Laixi Zhang, Wei Li

et al.

Microchemical Journal, Journal Year: 2024, Volume and Issue: 204, P. 111096 - 111096

Published: July 2, 2024

Language: Английский

Citations

0
PVP-Assisted Fe-Doped Carbon Dots as Robust Nanozymes for Visual H2O2 Sensing DOI
Anteneh F. Baye,

Lidya Ashenafi,

Shimelis Kebede Kassahun

et al.

ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 19, 2024

Iron-doped carbon dots (Fe-CDs) exhibit exceptional peroxidase-like activity and are utilized for colorimetric sensing of hydrogen peroxide (H2O2). However, the Fe–H2O2 system falls short generating reactive oxygen species oxidizing TMB (3,3′,5,5′-tetramethylbenzidine) due to Fe aggregation uneven dispersion, resulting in less sensitive H2O2. This study synthesized polymer-assisted Fe-doped CDs with remarkable peroxidase-mimicking through hydrothermal carbonization waste orange peel iron chloride salt. Different types polymers, such as PAN, PVP, PVA, PS, cellulose acetate, were used engineer surface CD successful uniformity doping. Among PVP appropriate molecular weight acts an efficient dispersant prevent regulate size Fe. On other hand, act Lewis acid sites chromogen substrate (hard base) adsorption. The intense interaction between ultrafine CDs/PVP matrix shows excellent peroxidase activating H2O2 TMB. Notably, nanozyme Fe-CD/PVP demonstrates high selectivity concentrated interferences, a low detection limit (52 nM). Moreover, was successfully sense milk.

Language: Английский

Citations

0