Green Synthesis of Platinum Nanoparticles and Their Biomedical Applications

Thondavada, Niranjan; Chokkareddy, Rajasekhar; Redhi, Gan G.

doi:10.1002/9781119418900.ch17

Cited by 5 publications

(3 citation statements)

References 138 publications

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“…Colloidal platinum nanoparticles (Pt-NPs) have attracted significant attention due to their physical and chemical properties, including stability, dispersion, size, shape, and morphology, which further determine their final applications, ranging from biotechnology to electronics. They may act as strong catalysts for the reduction of polluting gases generated by vehicles [ 1 ] or for the elimination of nitrous oxide generated in combustion processes [ 2 ], and they may enhance the catalytic activity for oxygen reduction reactions during the operation of proton exchange membrane fuel cells [ 1 , 3 ]. They have important applications in oxygen reduction reactions (ORRs) due to their remarkable electrocatalytic characteristics [ 4 ].…”

Section: Introductionmentioning

confidence: 99%

The Water-Based Synthesis of Platinum Nanoparticles Using KrF Excimer Laser Ablation

et al. 2022

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Our work presents, for the first time, a comprehensive study of the synthesis of fully metallic platinum nanoparticles (Pt-NPs) involving the ablation process in double distilled water using a KrF excimer laser. To obtain detailed information on Pt-NP morphology and optical properties, prepared colloids were characterized using High Resolution Scanning Transmission Electron Microscopy (HR-STEM) with advanced capabilities for Energy Dispersive X-ray Analysis (EDX), UV/Vis optical spectroscopy, and Direct Analysis in Real Time—Mass Spectrometry (DART-MS). The influence of the applied laser fluence and laser repetition rate (RR) values on the characteristics of the obtained Pt-NPs and the ablation process, respectively, were also analyzed. Spherical and spherical-like nanoparticles exhibiting aggregation were produced. The Pt-NP mean size values were between 2.2 ± 1.2 nm and 4.0 ± 1.0 nm, while their interplanar distance measurements showed a face-centered cubic (FFC) Pt lattice (111), as revealed by HR–STEM measurements, for all investigated samples. The smallest mean size of 2.2 nm of the Pt-NPs was obtained using a 2.3 J cm−2 laser fluence at a 10 Hz RR, and the narrowest size distribution of the NPs was obtained with a 2.3 J cm−2 laser fluence at a 40 Hz RR. A linear dependence of the Pt-NP diameters versus the laser repetition rate was found at a constant fluence of 2.3 J cm−2. The proposed eco-friendly synthesis route of Pt-NPs, because of its relative simplicity, has the potential for use in industrial production.

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Section: Introductionmentioning

confidence: 99%

The Water-Based Synthesis of Platinum Nanoparticles Using KrF Excimer Laser Ablation

et al. 2022

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Section: Introductionmentioning

confidence: 99%

“…Palladium [ 15 ], platinum or gold nanoparticles (PtNPs [ 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 ] or GNPs [ 16 , 17 , 32 ]), platinum nanoclusters (PtNCs) [ 33 ], platinum nanostructures (PtNS [ 34 , 35 , 36 ]) or gold nanostructures [ 19 , 37 , 38 , 39 , 40 , 41 , 42 , 43 ], and carbon nanotubes [ 9 , 44 ] are used in various fields of modern science, medicine, and industry [ 4 , 5 ]. Nanoparticles have applications in radiation and photothermal therapy, nanodiagnostic [ 25 ], and genosensor [ 20 ]. They are used for ascorbic acid [ 9 ], hydrogen peroxide [ 27 , 44 ], methanol [ 28 ] and glucose detection [ 16 , 19 , 43 ], as well as for enzyme immobilization, in electrocatalysis, and in the development of light-emitting structures and solar and fuel cells [ 26 , 36 , 41 ].…”

Section: Introductionmentioning

confidence: 99%

Reagentless Glucose Biosensor Based on Combination of Platinum Nanostructures and Polypyrrole Layer

German,

Popov,

Ramanaviciene

2024

Biosensors

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Two types of low-cost reagentless electrochemical glucose biosensors based on graphite rod (GR) electrodes were developed. The electrodes modified with electrochemically synthesized platinum nanostructures (PtNS), 1,10-phenanthroline-5,6-dione (PD), glucose oxidase (GOx) without and with a polypyrrole (Ppy) layer—(i) GR/PtNS/PD/GOx and (ii) GR/PtNS/PD/GOx/Ppy, respectively, were prepared and tested. Glucose biosensors based on GR/PtNS/PD/GOx and GR/PtNS/PD/GOx/Ppy electrodes were characterized by the sensitivity of 10.1 and 5.31 μA/(mM cm2), linear range (LR) up to 16.5 and 39.0 mM, limit of detection (LOD) of 0.198 and 0.561 mM, good reproducibility, and storage stability. The developed glucose biosensors based on GR/PtNS/PD/GOx/Ppy electrodes showed exceptional resistance to interfering compounds and proved to be highly efficient for the determination of glucose levels in blood serum.

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