Evidence map›Paper›PMID 21961562›Full record

ArticleJournal of nanobiotechnology2011

Single wall carbon nanotubes enter cells by endocytosis and not membrane penetration.

Peter N Yaron, Brian D Holt, Philip A Short, Mathias Lösche, Mohammad F Islam, Kris Noel Dahl

Abstract read
In one paragraph

Article in Journal of nanobiotechnology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers.

0numbers the graph read from it
0cells of the map it votes in
51citing papers in PubMed
–field-weighted citation impact
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

51 citing papers in PubMed.

  1. Review
  2. Review
  3. Holistic Investigation of Graphene Quantum Dot Endocytosis.Small (Weinheim an der Bergstrasse, Germany) · 2025
    Article
  4. Article
  5. Review
  6. The Application of Nanovaccines in Autoimmune Diseases.International journal of nanomedicine · 2024
    Review
  7. Review
  8. Review
  9. Article
  10. Review
  11. Article
  12. Article
  13. Immunotoxicity of Carbon-Based Nanomaterials, Starring Phagocytes.International journal of molecular sciences · 2022
    Review
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Nanoparticles for protein delivery in planta.Current opinion in plant biology · 2021
    Review
  20. Review
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

6 authors.

Peter N YaronDepartment of Chemical Engineering, Carnegie Mellon University, Pittsburgh, PA, USA.
Brian D Holt
Philip A Short
Mathias Lösche
Mohammad F Islam
Kris Noel Dahl

Funding

STRUCTURAL&FUNCTIONAL INESTIGATIONS OF AB OLIGOMER INTERACTION/SYNTHETIC MEMBRANEP01AG032131 · NIA · CARNEGIE-MELLON UNIVERSITY · PI DESEMO, MARKUS · 2009 to 2011
$1.9M
NIA NIH HHS 1P01 AG032131
6 · The paper itself

Abstract

backgroundCarbon nanotubes are increasingly being tested for use in cellular applications. Determining the mode of entry is essential to control and regulate specific interactions with cells, to understand toxicological effects of nanotubes, and to develop nanotube-based cellular technologies. We investigated cellular uptake of Pluronic copolymer-stabilized, purified ~145 nm long single wall carbon nanotubes (SWCNTs) through a series of complementary cellular, cell-mimetic, and in vitro model membrane experiments.

resultsSWCNTs localized within fluorescently labeled endosomes, and confocal Raman spectroscopy showed a dramatic reduction in SWCNT uptake into cells at 4°C compared with 37°C. These data suggest energy-dependent endocytosis, as shown previously. We also examined the possibility for non-specific physical penetration of SWCNTs through the plasma membrane. Electrochemical impedance spectroscopy and Langmuir monolayer film balance measurements showed that Pluronic-stabilized SWCNTs associated with membranes but did not possess sufficient insertion energy to penetrate through the membrane. SWCNTs associated with vesicles made from plasma membranes but did not rupture the vesicles.

conclusionsThese measurements, combined, demonstrate that Pluronic-stabilized SWCNTs only enter cells via energy-dependent endocytosis, and association of SWCNTs to membrane likely increases uptake.

Indexed as

AnimalsCell LineDielectric SpectroscopyEndocytosisEndosomesHumansMiceMicroscopy, ConfocalNanotubes, CarbonPoloxamerSpectrum Analysis, RamanTemperatureThermodynamicsUnilamellar LiposomesNanotubes, CarbonPoloxamerUnilamellar Liposomes

Identifiers

PMID21961562
PMCPMC3195092

What OpenQuestion holds

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LicenceCC BY
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.