Evidence map›Paper›PMID 42412769›Full record

ArticlePloS one2026

A piezoelectric electroporator (Piezopen) for enhanced "naked" RNA vaccine delivery.

Eleftheria Michalaki, Ananya Van Zanten, Jade Najjar, Gaurav Byagathvalli

Abstract read
In one paragraph

Article in PloS one, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. 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

4 authors.

Eleftheria MichalakiPiezo Therapeutics, Inc., Atlanta, GeorgiaUnited States of America.ORCID https://orcid.org/0000-0003-3429-5604
Ananya Van ZantenPiezo Therapeutics, Inc., Atlanta, GeorgiaUnited States of America.
Jade NajjarPiezo Therapeutics, Inc., Atlanta, GeorgiaUnited States of America.
Gaurav ByagathvalliPiezo Therapeutics, Inc., Atlanta, GeorgiaUnited States of America.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Despite the success of COVID-19 mRNA vaccines, they still face challenges with high costs, complex manufacturing, off-target biodistribution, and systemic reactogenicity stemming from their inflammatory carriers: lipid nanoparticles (LNPs). While "naked" RNA delivery could in principle solve these issues, studies have suggested that it is infeasible due to rapid degradation by RNases and poor cellular entry, thereby necessitating formulations that enhance intracellular delivery and RNA stability. Now, we challenge this paradigm by showing that a simple and inexpensive (<$1), lighter-derived electroporator with microneedle electrodes (Piezopen) can augment gene expression and immunogenicity to naked mRNA leading to comparable responses to LNPs at low doses. We achieve robust responses in the absence of systemic inflammation and reactogenicity using skin-targeted delivery, administer diverse construct types (i.e., mRNA, self-amplifying RNA (saRNA), circular RNA (circRNA)), and demonstrate cross-species validation in live human skin to derisk subsequent clinical application. Our results introduce Piezopen as an inexpensive, well-tolerated, and efficacious alternative to LNPs for mRNA vaccine delivery, designed to facilitate routine vaccinations and pandemic response.

Indexed as

COVID-19COVID-19 VaccinesElectroporationAnimalsElectroporation TherapiesFemaleHumansMiceMicroneedle Drug DeliverymRNA VaccinesNanoparticlesRNA, MessengerSARS-CoV-2SkinCOVID-19 VaccinesmRNA VaccinesRNA, Messenger

Identifiers

PMID42412769
PMCPMC13340769

What OpenQuestion holds

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LicenceCC BY
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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.