NDLI: Au Dotted Magnetic Network Nanostructure and Its Application for On-Site Monitoring Femtomolar Level Pesticide

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Au Dotted Magnetic Network Nanostructure and Its Application for On-Site Monitoring Femtomolar Level Pesticide

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Yang, Tianxi Guo, Xiaoyu Wang, Hui Fu, Shuyue Yu, Jie Wen, Ying Yang, Haifeng
Description	Author Affiliation: Yang T ( The Education Ministry Key Lab of Resource Chemistry, Shanghai Key Laboratory of Rare Earth Functional Materials and Department of Chemistry, Shanghai Normal University, Shanghai, 200234, P. R. China.)
Abstract	A novel magnetically responsive and surface-enhanced Raman spectroscopy (SERS) active nanocomposite is designed and prepared by direct grafting of Au nanoparticles onto the surface of magnetic network nanostructure (MNN) with the help of a nontoxic and environmentally friendly reagent of inositol hexakisphosphate shortly named as $IP_{6}.$ The presence of $IP_{6}$ as a stabilizer and a bridging agent could weave $Fe_{3}O_{4}$ nanoparticles (NPs) into magnetic network nanostructure, which is easily dotted with Au nanoparticles (Au NPs). It has been shown firstly that the huge Raman enhancement of Au-MNN is reached by an external magnetic collection. Au-MNN presenting the large surface and high detection sensitivity enables it to exhibit multifunctional applications involving sufficient adsorption of dissolved chemical species for enrichment, separation, as well as a Raman amplifier for the analysis of trace pesticide residues at femtomolar level by a portable Raman spectrometer. Therefore, such multifunctional nanocomposites can be developed as a smart and promising nanosystem that integrates SERS approach with an easy assay for concentration by an external magnet for the effective on-site assessments of agricultural and environmental safety.
File Format	HTM / HTML
ISSN	16136810
Issue Number	7
Volume Number	10
e-ISSN	16136829
Journal	Small
Language	English
Publisher	Wiley-VCH
Publisher Date	2014-04-09
Publisher Place	Germany
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Discipline Nanotechnology Gold Chemistry Magnetic Phenomena Nanostructures Pesticides Analysis Ferric Compounds Spectrophotometry, Ultraviolet Spectrum Analysis, Raman Vegetables Journal Article Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Chemistry Nanoscience and Nanotechnology Medicine Biomaterials Engineering Biotechnology

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Au Dotted Magnetic Network Nanostructure and Its Application for On-Site Monitoring Femtomolar Level Pesticide

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Au Dotted Magnetic Network Nanostructure and Its Application for On-Site Monitoring Femtomolar Level Pesticide