Evidence map›Paper›PMID 21997467›Full record

ArticleThe Journal of membrane biology2011

The equilibria of lipid-k(+) ions in monolayer at the air/water interface.

Aneta D Petelska, Zbigniew A Figaszewski

Open access · hybridAbstract read
In one paragraph

Article in The Journal of membrane biology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
0.2field-weighted citation impact, top 42% 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

7 citing papers in PubMed, 12 citations in OpenAlex.

  1. Surface Symphony: Orchestrating DPPC/DOPC Monolayer Behavior.Microscopy research and technique · 2026
    Article
  2. Measuring the Adsorption of Electrolytes on Lipid Monolayers.The journal of physical chemistry letters · 2023
    Article
  3. Article
  4. Article
  5. Review
  6. The effect of divalent ions on L-α-phosphatidylcholine from egg yolk monolayers at the air/water interface.Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry · 2017
    Article
  7. 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

2 authors at 2 institutions in 1 country.

Aneta D PetelskaInstitute of Chemistry, University in Bialystok, Poland. aneta@uwb.edu.pl
Zbigniew A Figaszewski
University of Białystok · PLUniversity of Warsaw · PL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The effect of K(+) ion interaction with monolayers of phosphatidylcholine (lecithin, PC) or cholesterol (Ch) was investigated at the air/water interface. We present surface tension measurements of lipid monolayers obtained using a Langmuir method as a function of K(+) ion concentration. Measurements were carried out at 22°C using a Teflon trough and a Nima 9000 tensiometer. Interactions between lecithin and K(+) ions or Ch and K(+) ions result in significant deviations from the additivity rule. An equilibrium theory to describe the behavior of monolayer components at the air/water interface was developed in order to obtain the stability constants and area occupied by one molecule of lipid-K(+) ion complex (LK(+)). The stability constants for lecithin-K(+) ion (PCK(+)) complex, [Formula: see text], and for cholesterol-K(+) ion (ChK(+)) complex, [Formula: see text], were calculated by inserting the experimental data. The value of area occupied by one PCK(+) complex is 60 Å(2 )molecule(-1), while the area occupied by one ChK(+) complex is 40.9 Å(2 )molecule(-1). The complex formation energy (Gibbs free energy) values for the PCK(+) and ChK(+) complexes are -14.18 ± 0.71 and -16.92 ± 0.85 kJ mol(-1), respectively.

Indexed as

Chemistry, PhysicalAirCholesterolHydrophobic and Hydrophilic InteractionsKineticsPhosphatidylcholinesPotassiumSurface TensionThermodynamicsWaterCholesterolPhosphatidylcholinesPotassiumWater

Identifiers

PMID21997467
PMCPMC3214609
OpenAlexW2053971016

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.