Evidence map›Paper›PMID 24347685›Full record

ArticleMacromolecules2013

Is DNA a Good Model Polymer?

Douglas R Tree, Abhiram Muralidhar, Patrick S Doyle, Kevin D Dorfman

Abstract read
In one paragraph

Article in Macromolecules, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
6.7field-weighted citation impact, top 2% 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

39 citing papers in PubMed, 126 citations in OpenAlex.

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  12. Measuring the wall depletion length of nanoconfined DNA.The Journal of chemical physics · 2018
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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

4 authors at 2 institutions in 1 country.

Douglas R TreeDepartment of Chemical Engineering and Materials Science, University of Minnesota.
Abhiram MuralidharDepartment of Chemical Engineering and Materials Science, University of Minnesota.
Patrick S DoyleDepartment of Chemical Engineering, Massachusetts Institute of Technology.
Kevin D DorfmanDepartment of Chemical Engineering and Materials Science, University of Minnesota.
University of Minnesota · USMassachusetts Institute of Technology · US

Funding

Dynamics of DNA Barcoding in NanochannelsR01HG006851 · NHGRI · UNIVERSITY OF MINNESOTA · PI DORFMAN, KEVIN D · 2013 to 2018
$2.1M
Rational Engineering of Nanopost Arrays for DNA ElectrophoresisR01HG005216 · NHGRI · UNIVERSITY OF MINNESOTA · PI DORFMAN, KEVIN D · 2010 to 2012
$849k
NHGRI NIH HHS R01 HG005216NHGRI NIH HHS R01 HG006851
6 · The paper itself

Abstract

The details surrounding the cross-over from wormlike-specific to universal polymeric behavior has been the subject of debate and confusion even for the simple case of a dilute, unconfined wormlike chain. We have directly computed the polymer size, form factor, free energy and Kirkwood diffusivity for unconfined wormlike chains as a function of molecular weight, focusing on persistence lengths and effective widths that represent single-stranded and double-stranded DNA in a high ionic strength buffer. To do so, we use a chain-growth Monte Carlo algorithm, the Pruned-Enriched Rosenbluth Method (PERM), which allows us to estimate equilibrium and near-equilibrium dynamic properties of wormlike chains over an extremely large range of contour lengths. From our calculations, we find that very large DNA chains (≈ 1,000,000 base pairs depending on the choice of size metric) are required to reach flexible, swollen non-draining coils. Furthermore, our results indicate that the commonly used model polymer λ-DNA (48,500 base pairs) does not exhibit "ideal" scaling, but exists in the middle of the transition to long-chain behavior. We subsequently conclude that typical DNA used in experiments are too short to serve as an accurate model of long-chain, universal polymer behavior.

Identifiers

PMID24347685
PMCPMC3859536
OpenAlexW2113564335

What OpenQuestion holds

Textmetadata
LicenceTDM
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.