Evidence map›Paper›PMID 31270380›Full record

ArticleScientific reports2019

Remote targeted implantation of sound-sensitive biodegradable multi-cavity microparticles with focused ultrasound.

Xiaoqian Su, Reju George Thomas, Lakshmi Deepika Bharatula, James J Kwan

Erratum issuedAbstract read
In one paragraph

Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing 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

10 citing papers in PubMed.

  1. Review
  2. Article
  3. Review
  4. Article
  5. Applications of Ultrasound-Mediated Drug Delivery and Gene Therapy.International journal of molecular sciences · 2021
    Review
  6. Nanostructured TiOUltrasonics sonochemistry · 2021
    Article
  7. Article
  8. Ultrasound-Activated Nanomaterials for Therapeutics.Bulletin of the Chemical Society of Japan · 2020
    Article
  9. Article
  10. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors.

Xiaoqian SuSchool of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore, 637459, Singapore.ORCID http://orcid.org/0000-0002-8303-6660
Reju George ThomasSchool of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore, 637459, Singapore.
Lakshmi Deepika BharatulaSchool of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore, 637459, Singapore.
James J KwanSchool of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore, 637459, Singapore. jameskwan@ntu.edu.sg.ORCID http://orcid.org/0000-0002-3795-6108

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Ultrasound-enhanced drug delivery has shown great promise in providing targeted burst release of drug at the site of the disease. Yet current solid ultrasound-responsive particles are non-degradable with limited potential for drug-loading. Here, we report on an ultrasound-responsive multi-cavity poly(lactic-co-glycolic acid) microparticle (mcPLGA MP) loaded with rhodamine B (RhB) with or without 4',6-diamidino-2-phenylindole (DAPI) to represent small molecule therapeutics. After exposure to high intensity focused ultrasound (HIFU), these delivery vehicles were remotely implanted into gel and porcine tissue models, where the particles rapidly released their payload within the first day and sustained release for at least seven days. RhB-mcPLGA MPs were implanted with HIFU into and beyond the sub-endothelial space of porcine arteries without observable damage to the artery. HIFU also guided the location of implantation; RhB-mcPLGA MPs were only observed at the focus of the HIFU away from the direction of ultrasound. Once implanted, DAPI co-loaded RhB-mcPLGA MPs released DAPI into the arterial wall, staining the nucleus of the cells. Our work shows the potential for HIFU-guided implantation of drug-loaded particles as a strategy to improve the local and sustained delivery of a therapeutic for up to two weeks.

Identifiers

PMID31270380
PMCPMC6610131

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Registered trials

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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.