Eco‐friendly Synthesis of Silver Nanoparticles and its Application in Hydrogen Photogeneration and Nanoplasmonic Biosensing

Environmentally friendly methods for silver nanoparticles (AgNPs) synthesis without the use of hazardous chemicals have recently drawn attention. In this work, AgNPs have been synthesized by microwave irradiation using only honey solutions or aqueous fresh pink radish extracts. The concentrations of...

Full description

Saved in:
Bibliographic Details
Published in:Chemphyschem 2023-11, Vol.24 (21), p.e202300002-n/a
Main Authors: Strapasson, Guilherme B., C. Flach, Eduarda, Assis, Marcelo, Corrêa, Silma A., Longo, Elson, Machado, Giovanna, Santos, Jacqueline F. L., Weibel, Daniel E.
Format: Article
Language:English
Subjects:
Biosensors
Biotin
Honey
hydrogen
Hydrogen production
Light irradiation
Low concentrations
microwave
Nanomaterials
Nanoparticles
nanoplasmonic biosensor
radish extract
Radishes
Silver nitrate
Synthesis
Titanium dioxide
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Environmentally friendly methods for silver nanoparticles (AgNPs) synthesis without the use of hazardous chemicals have recently drawn attention. In this work, AgNPs have been synthesized by microwave irradiation using only honey solutions or aqueous fresh pink radish extracts. The concentrations of honey, radish extract, AgNO3 and pH were varied. AgNPs presented mean sizes between 7.0 and 12.8 nm and were stable up to 120 days. The AgNPs were employed as co‐catalyst (TiO2@AgNPs) to increase the hydrogen photogeneration under UV‐vis and only visible light irradiation, when compared to pristine TiO2 NPs. The prepared photocatalyst also showed hydrogen generation under visible light. Additionally, AgNPs were used to assemble a nanoplasmonic biosensor for the biodetection of extremely low concentrations of streptavidin, owing to its specific binding to biotin. It is shown here that green AgNPs are versatile nanomaterials, thus being potential candidates for hydrogen photogeneration and biosensing applications. Silver NPs between 7.0 and 12.8 nm in size are prepared in diluted aqueous solutions containing only radish extracts or honey by microwave irradiation. The AgNPs are assembled in a nanoplasmonic biosensor chip for biomarkers detections and used as co‐photocatalyst (TiO2@AgNPs) for hydrogen generation using UV or visible light.
ISSN:1439-4235
1439-7641
DOI:10.1002/cphc.202300002