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Reference type: Journal
Authors: Patra S, Choudhary R, Roy E, Madhuri R, Sharma PK
Article Title: RETRACTED Size-specific imprinted polymer embedded carbon nanodots modified magnetic nanoparticle for specific recognition of titanium nanoparticle: The round versus round.
Publication date: 2016
Journal: Biosensors and Bioelectronics
Volume: 86
Page numbers: 818-826.
DOI: 10.1016/j.bios.2016.07.084
Alternative URL: http://www.sciencedirect.com/science/article/pii/S095656631630714X

Abstract: Like the two sides of a coin, any new invention or discovery also possess their two faces. Similarly, while nanomaterials were identified as a boon in several fields like industrial, medicinal or agriculture; some of them have been also validated as a risk to the environment and living organisms. In this report, we addressed an efficient optical method for the detection of popularly used titanium dioxide nanoparticle (TiO2) by a size-specific imprinted polymer embedded heteroatom-doped carbon nanodots (CNDs) decorated at the surface of the water-soluble magnetic nanoparticle. The CNDs were prepared by an economic and eco-friendly one-step hydrothermal method using a series of Brassicaceae family members (i.e. radish, cabbage, broccoli, and cauliflower). The as prepared CNDs shows very good production (12.8%) and quantum yields (40.7%). The size-specific imprinted polymer is biocompatible and biodegradable in nature and was able to detect the TiO2 nanoparticles with a high selectivity i.e. limit of detection (LOD)=6.88 ng L-1 (S/N=3) and remove the nanoparticle very efficiently. Furthermore, the method was successfully applied for the detection of TiO2 nanoparticles in wastewater, human sera, and cosmetic samples
Template and target information: titanium dioxide nanoparticles, nanoparticles
Author keywords: TiO2 nanoparticle, Carbon nanodots, Size-specific polymer, magnetic nanoparticle, Separation and detection

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