Evidence map›Paper›PMID 26090875›Full record

ArticleHuman vaccines & immunotherapeutics2015

A microarray MEMS device for biolistic delivery of vaccine and drug powders.

Fatemeh Nazly Pirmoradi, Ashish V Pattekar, Felicia Linn, Michael I Recht, Armin R Volkel, Qian Wang, Greg B Anderson, Mandana Veiseh, Sandra Kjono, Eric Peeters and 2 more

Abstract read
In one paragraph

Article in Human vaccines & immunotherapeutics, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing 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

5 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
  4. Review
  5. DNA vaccines 2014 meeting: Highlights and overview.Human vaccines & immunotherapeutics · 2015
    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

12 authors.

Fatemeh Nazly Pirmoradia Palo Alto Research Center Inc., (PARC) ; Palo Alto , CA USA.
Ashish V Pattekar
Felicia Linn
Michael I Recht
Armin R Volkel
Qian Wang
Greg B Anderson
Mandana Veiseh
Sandra Kjono
Eric Peeters
Scott A Uhland
Eugene M Chow

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We report a biolistic technology platform for physical delivery of particle formulations of drugs or vaccines using parallel arrays of microchannels, which generate highly collimated jets of particles with high spatial resolution. Our approach allows for effective delivery of therapeutics sequentially or concurrently (in mixture) at a specified target location or treatment area. We show this new platform enables the delivery of a broad range of particles with various densities and sizes into both in vitro and ex vivo skin models. Penetration depths of ∼1 mm have been achieved following a single ejection of 200 µg high-density gold particles, as well as 13.6 µg low-density polystyrene-based particles into gelatin-based skin simulants at 70 psi inlet gas pressure. Ejection of multiple shots at one treatment site enabled deeper penetration of ∼3 mm in vitro, and delivery of a higher dose of 1 mg gold particles at similar inlet gas pressure. We demonstrate that particle penetration depths can be optimized in vitro by adjusting the inlet pressure of the carrier gas, and dosing is controlled by drug reservoirs that hold precise quantities of the payload, which can be ejected continuously or in pulses. Future investigations include comparison between continuous versus pulsatile payload deliveries. We have successfully delivered plasmid DNA (pDNA)-coated gold particles (1.15 µm diameter) into ex vivo murine and porcine skin at low inlet pressures of ∼30 psi. Integrity analysis of these pDNA-coated gold particles confirmed the preservation of full-length pDNA after each particle preparation and jetting procedures. This technology platform provides distinct capabilities to effectively deliver a broad range of particle formulations into skin with specially designed high-speed microarray ejector nozzles.

Indexed as

AnimalsBiolisticsDrug Delivery SystemsHumansMice, Inbred BALB CMicro-Electrical-Mechanical SystemsPharmaceutical PreparationsPowdersSwineVaccines, DNAPharmaceutical PreparationsPowdersVaccines, DNAAPC, Antigen Presenting CellsbiolisticCFD, Computational Fluid Dynamicsepidermal deliverygene guninjection microarraysintracellular deliveryintradermal deliveryMEMS, MicroElectroMechanical Systemneedle-free vaccine injectionparticle collimationparticle ejectionpDNA, Plasmid DNAtransdermal drug delivery

Identifiers

PMID26090875
PMCPMC4635881

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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.