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Related Experiment Video

Updated: Jun 21, 2026

Formulation of Diblock Polymeric Nanoparticles through Nanoprecipitation Technique

Formulation of Diblock Polymeric Nanoparticles through Nanoprecipitation Technique

Published on: September 20, 2011

Polymer nanoparticles pass the plant interface.

Sam J Parkinson¹, Sireethorn Tungsirisurp^2,3, Chitra Joshi²

¹School of Chemistry, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK.

Nature Communications

|November 30, 2022

Summary

This summary is machine-generated.

Plants can absorb nanoplastics, with neutral particles entering cells rapidly and negatively charged ones accumulating in the xylem. This nanoplastic uptake varies by particle charge and size, impacting plant accessibility.

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Advanced Compositional Analysis of Nanoparticle-polymer Composites Using Direct Fluorescence Imaging

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Area of Science:

Environmental Science
Plant Biology
Materials Science

Background:

Agriculture faces challenges from increasing nanoplastic pollution.
Understanding nanoplastic interactions with plants is crucial for food security and environmental health.

Purpose of the Study:

To investigate the uptake and accumulation of nanoplastics by *Arabidopsis thaliana*.
To determine how nanoparticle properties (size, charge) influence plant absorption.

Main Methods:

Synthesis of well-defined block copolymer nanoparticles with a fluorophore.
Confocal microscopy to track nanoparticle uptake in plant roots and protoplasts.
Investigation of *Arabidopsis thaliana* root and protoplast interactions.

Main Results:

Nanoparticle uptake is inversely proportional to size.
Positively charged nanoparticles remain on root surfaces.
Negatively charged nanoparticles accumulate in the xylem over time.
Neutral nanoparticles show rapid cell penetration but lower xylem loading.

Conclusions:

Plant cell walls do not prevent nanoplastic entry.
Plants are susceptible to nanoplastic accumulation from soil and water.
Nanoparticle charge and size significantly influence plant uptake pathways.