Evidence map›Paper›PMID 25054542›Full record

ArticleNano letters2014

Direct interrogation of DNA content distribution in nanoparticles by a novel microfluidics-based single-particle analysis.

Cyrus W Beh, Deng Pan, Jason Lee, Xuan Jiang, Kelvin J Liu, Hai-Quan Mao, Tza-Huei Wang

Abstract read
In one paragraph

Article in Nano letters, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing 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

19 citing papers in PubMed.

  1. Messenger RNA and guide RNA distributions in lipid nanoparticles impact gene-editing efficiency in vivo.Molecular therapy : the journal of the American Society of Gene Therapy · 2026
    Article
  2. Article
  3. Nanotherapeutic Heterogeneity: Sources, Effects, and Solutions.Small (Weinheim an der Bergstrasse, Germany) · 2024
    Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Widespread gene transfer to malignant gliomas with In vitro-to-In vivo correlation.Journal of controlled release : official journal of the Controlled Release Society · 2019
    Article
  12. Article
  13. Article
  14. Article
  15. A Triple-Fluorophore-Labeled Nucleic Acid pH Nanosensor to Investigate Non-viral Gene Delivery.Molecular therapy : the journal of the American Society of Gene Therapy · 2017
    Article
  16. Article
  17. Article
  18. Review
  19. 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

7 authors.

Cyrus W BehDepartment of Biomedical Engineering, Johns Hopkins School of Medicine , 720 Rutland Avenue, Baltimore, Maryland 21205, United States.
Deng Pan
Jason Lee
Xuan Jiang
Kelvin J Liu
Hai-Quan Mao
Tza-Huei Wang

Funding

ValidationU54CA151838 · NCI · JOHNS HOPKINS UNIVERSITY · PI POMPER, MARTIN G, SEARSON, PETER C · 2010 to 2014
$11.9M
Multiplexed Detection of Cell Free DNA Biomarkers for CancerR01CA155305 · NCI · JOHNS HOPKINS UNIVERSITY · PI WANG, TZA-HUEI JEFF · 2011 to 2015
$1.7M
PCR-free Multiplexed Detection of Circulating miRNA in BloodR21CA173390 · NCI · JOHNS HOPKINS UNIVERSITY · PI WANG, TZA-HUEI JEFF · 2012 to 2014
$676k
Shape Control and Transfection of Self-assembled Polymer-DNA NanoparticlesR21EB013274 · NIBIB · JOHNS HOPKINS UNIVERSITY · PI MAO, HAI-QUAN · 2012 to 2013
$431k
NCI NIH HHS R01 CA155305NCI NIH HHS R01CA155305NCI NIH HHS R21 CA173390NCI NIH HHS R21CA173390NCI NIH HHS U54 CA151838NCI NIH HHS U54CA151838NIBIB NIH HHS R21 EB013274NIBIB NIH HHS R21EB013274
6 · The paper itself

Abstract

Nonviral gene delivery holds great promise not just as a safer alternative to viral vectors in traditional gene therapy applications, but also for regenerative medicine, induction of pluripotency in somatic cells, and RNA interference for gene silencing. Although it continues to be an active area of research, there remain many challenges to the rational design of vectors. Among these, the inability to characterize the composition of nanoparticles and its distribution has made it difficult to probe the mechanism of gene transfection process, since differences in the nanoparticle-mediated transfection exist even when the same vector is used. There is a lack of sensitive methods that allow for full characterization of DNA content in single nanoparticles and its distribution among particles in the same preparation. Here we report a novel spectroscopic approach that is capable of interrogating nanoparticles on a particle-by-particle basis. Using PEI/DNA and PEI-g-PEG/DNA nanoparticles as examples, we have shown that the distribution of DNA content among these nanoparticles was relatively narrow, with the average numbers of DNA of 4.8 and 6.7 per particle, respectively, in PEI/DNA and PEI-g-PEG/DNA nanoparticles. This analysis enables a more accurate description of DNA content in polycation/DNA nanoparticles. It paves the way toward comparative assessments of various types of gene carriers and provides insights into bridging the efficiency gap between viral and nonviral vehicles.

Indexed as

Gene Transfer TechniquesDNANanoparticlesPolyethylene GlycolsDNAPolyethylene Glycols

Identifiers

PMID25054542
PMCPMC4134141

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.