Evidence map›Paper›PMID 33560851›Full record

ArticleNano letters2021

Brush Conformation of Polyethylene Glycol Determines the Stealth Effect of Nanocarriers in the Low Protein Adsorption Regime.

Mengyi Li, Shuai Jiang, Johanna Simon, David Paßlick, Marie-Luise Frey, Manfred Wagner, Volker Mailänder, Daniel Crespy, Katharina Landfester

Open access · hybridAbstract read
In one paragraph

Article in Nano letters, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 83 papers.

0numbers the graph read from it
0cells of the map it votes in
83citing papers in PubMed
11.2field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

83 citing papers in PubMed, 223 citations in OpenAlex.

  1. Review
  2. Ritonavir-Loaded PEG-Pharmaceuticals (Basel, Switzerland) · 2026
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  19. Concentrated Polymer Brush-Modified Magnetic Particles for a Diagnostic Immunoassay.Langmuir : the ACS journal of surfaces and colloids · 2025
    Article
  20. Article

23 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 3 institutions in 2 countries.

Mengyi LiMax Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany.
Shuai JiangMax Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany.ORCID 0000-0002-8639-3495
Johanna SimonMax Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany.
David PaßlickMax Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany.
Marie-Luise FreyMax Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany.
Manfred WagnerMax Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany.
Volker MailänderMax Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany.
Daniel CrespyDepartment of Materials Science and Engineering, School of Molecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), Rayong 21210, Thailand.
Katharina LandfesterMax Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany.ORCID 0000-0001-9591-4638
Max Planck Institute for Polymer Research · DEJohannes Gutenberg University Mainz · DEVidyasirimedhi Institute of Science and Technology · TH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

For nanocarriers with low protein affinity, we show that the interaction of nanocarriers with cells is mainly affected by the density, the molecular weight, and the conformation of polyethylene glycol (PEG) chains bound to the nanocarrier surface. We achieve a reduction of nonspecific uptake of ovalbumin nanocarriers by dendritic cells using densely packed PEG chains with a "brush" conformation instead of the collapsed "mushroom" conformation. We also control to a minor extent the dysopsonin adsorption by tailoring the conformation of attached PEG on the nanocarriers. The brush conformation of PEG leads to a stealth behavior of the nanocarriers with inhibited uptake by phagocytic cells, which is a prerequisite for successful in vivo translation of nanomedicine to achieve long blood circulation and targeted delivery. We can clearly correlate the brush conformation of PEG with inhibited phagocytic uptake of the nanocarriers. This study shows that, in addition to the surface's chemistry, the conformation of polymers controls cellular interactions of the nanocarriers.

Indexed as

NanoparticlesPolyethylene GlycolsAdsorptionDrug CarriersMolecular ConformationPolymersDrug CarriersPolyethylene GlycolsPolymersnanoparticlePEG conformationPEGylationprotein coronastealth effect

Identifiers

PMID33560851
PMCPMC8023711
OpenAlexW3128033077

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.