PUBLICATION

Surface-enhanced Raman scattering labeled nanoplastic models for reliable bio-nano interaction investigations

Authors
Zhang, P., Wang, Y., Zhao, X., Ji, Y., Mei, R., Fu, L., Man, M., Ma, J., Wang, X., Chen, L.
ID
ZDB-PUB-211214-39
Date
2021
Source
Journal of hazardous materials   425: 127959 (Journal)
Registered Authors
Zhang, Panpan
Keywords
Biological interaction, In vivo distribution, Nanoplastics, Optical imaging, Surface-enhanced Raman scattering
MeSH Terms
  • Animals
  • Microplastics*
  • Spectrum Analysis, Raman*
  • Zebrafish
PubMed
34891014 Full text @ J. Hazard. Mater.
Abstract
Nanoplastics (NPs) have attracted great attention as an emerging pollution. To date, their interaction with biological systems has been studied mostly by using fluorescent-labeled NPs, which suffered from serious drawbacks such as biological autofluorescence interference and false-positive results. Reliable optically labeled NP models are eagerly desired until now. Herein, a novel near-infrared (NIR) surface-enhanced Raman scattering (SERS) labeled NP model was proposed, which gained single-particle ultra-sensitivity, deep tissue detection, multiplex labeling ability, and anti-interference property. More importantly, the NP demonstrated satisfactory in vivo signal stability which completely prevented the positive-false problems. The advantages of the NPs enabled direct, dynamic in vivo behavior imaging study in living zebrafish embryo, adult zebrafish and green vegetable Brassica rapa. It was found for the first time that NPs entered blood circulation system of zebrafish larva via dermal uptake route, which only occurred in a short 48 h-window post-hatch. NPs widely distributed in roots, shoots and leaves of Brassica rapa seedlings germinating and growing in the NP-containing hydroponic culture. Different depths of one root showed varied adsorption capabilities towards NPs with fulvic acid, lipid and sodium dodecyl sulfate eco-coronas. This work provided an ideal tool for reliable bio-NP interaction study for a variety of organisms, which could promote the research of NPs.
Genes / Markers
Figures
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Antibodies
Orthology
Engineered Foreign Genes
Mapping