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Related Experiment Video

Updated: May 30, 2026

Highly Stable, Functional Hairy Nanoparticles and Biopolymers from Wood Fibers: Towards Sustainable Nanotechnology

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Published on: July 20, 2016

Stable cellulose nanospheres for cellular uptake.

Tim Liebert¹, Marc Kostag, Jana Wotschadlo

¹Center of Excellence for Polysaccharide Research, Institute of Organic Chemistry and Macromolecular Chemistry, Friedrich Schiller University of Jena, Humboldtstrasse 10, D-07743 Jena, Germany.

Macromolecular Bioscience

|August 11, 2011

Summary

This summary is machine-generated.

Researchers developed spherical cellulose nanoparticles using trimethylsilylcellulose. These stable, FITC-labeled nanoparticles show rapid cellular uptake in human fibroblasts, highlighting geometry

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Area of Science:

Nanotechnology
Biomaterials Science
Cell Biology

Background:

Cellulose nanoparticles are promising biomaterials.
Understanding their interaction with cells is crucial for applications.
Previous studies focused on cellulose nanocrystals.

Purpose of the Study:

To synthesize and characterize pure, spherical cellulose nanoparticles.
To evaluate the stability and biocompatibility of these nanoparticles.
To investigate the cellular uptake mechanism of cellulose nanoparticles in human fibroblasts.

Main Methods:

Preparation of cellulose nanoparticles via dialysis of trimethylsilylcellulose.
Characterization of particle size, shape, and stability.
Covalent labeling with fluorescein isothiocyanate (FITC) and confocal laser scanning microscopy (LSM) for cellular uptake studies.

Main Results:

Spherical cellulose nanoparticles (80-260 nm) were successfully synthesized.
Aqueous suspensions remained stable for months; FITC labeling did not alter properties.
Fast cellular uptake of FITC-labeled nanoparticles into human fibroblasts was observed without transfection agents.

Conclusions:

Spherical cellulose nanoparticles are stable, biocompatible, and readily internalized by cells.
The geometry of nanomaterials significantly influences cellular endocytosis.
These findings suggest potential for spherical cellulose nanoparticles in biomedical applications.