Evidence map›Paper›PMID 23941196›Full record

ArticleThe journal of physical chemistry. B2013

Independent versus cooperative binding in polyethylenimine-DNA and Poly(L-lysine)-DNA polyplexes.

Tiia-Maaria Ketola, Martina Hanzlíková, Linda Leppänen, Manuela Raviña, Corey J Bishop, Jordan J Green, Arto Urtti, Helge Lemmetyinen, Marjo Yliperttula, Elina Vuorimaa-Laukkanen

Abstract read
In one paragraph

Article in The journal of physical chemistry. B, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing 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

12 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Exploring the role of polymer structure on intracellular nucleic acid delivery via polymeric nanoparticles.Journal of controlled release : official journal of the Controlled Release Society · 2015
    Review
  11. Article
  12. Article
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

10 authors.

Tiia-Maaria KetolaDepartment of Chemistry and Bioengineering, Tampere University of Technology , Korkeakoulunkatu 10, 33720 Tampere, Finland.
Martina Hanzlíková
Linda Leppänen
Manuela Raviña
Corey J Bishop
Jordan J Green
Arto Urtti
Helge Lemmetyinen
Marjo Yliperttula
Elina Vuorimaa-Laukkanen

Funding

Wilmer Core Grant for Vision ResearchP30EY001765 · NEI · JOHNS HOPKINS UNIVERSITY · PI Jiang Qian · 1985 to 2026
$22.1M
Gene Delivery Nanoparticles to Treat GlioblastomaR01EB016721 · NIBIB · JOHNS HOPKINS UNIVERSITY · PI GREEN, JORDAN · 2013 to 2017
$1.9M
Nanoparticle-mediated peptide delivery for breast cancerR21CA152473 · NCI · JOHNS HOPKINS UNIVERSITY · PI GREEN, JORDAN · 2011 to 2012
$392k
NCI NIH HHS R21 CA152473NCI NIH HHS R21CA152473NEI NIH HHS EY001765NEI NIH HHS P30 EY001765NIBIB NIH HHS R01 EB016721
6 · The paper itself

Abstract

The mechanism of polyethylenimine-DNA and poly(L-lysine)-DNA complex formation at pH 5.2 and 7.4 was studied by a time-resolved spectroscopic method. The formation of a polyplex core was observed to be complete at approximately N/P = 2, at which point nearly all DNA phosphate groups were bound by polymer amine groups. The data were analyzed further both by an independent binding model and by a cooperative model for multivalent ligand binding to multisubunit substrate. At pH 5.2, the polyplex formation was cooperative at all N/P ratios, whereas for pH 7.4 at N/P < 0.6 the polyplex formation followed independent binding changing to cooperative binding at higher N/Ps.

Indexed as

AnimalsCell LineCHO CellsCricetinaeCricetulusDNAHumansHydrogen-Ion ConcentrationKineticsParticle SizePolyethyleneiminePolylysineDNAPolyethyleneiminePolylysine

Identifiers

PMID23941196
PMCPMC3888923

What OpenQuestion holds

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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.