Evidence map›Paper›PMID 37354008›Full record

ArticleDrug development and industrial pharmacy2023

Spray coverage analysis of topical sprays formed by cold thermoreversible hydrogels.

Riannon Smith, Chris Ruben, Ojas Pradhan, Nicole Brogden, Jennifer Fiegel

Open access · greenAbstract read
In one paragraph

Article in Drug development and industrial pharmacy, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.6field-weighted citation impact, top 30% 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

2 citing papers in PubMed, 3 citations in OpenAlex.

  1. Article
  2. 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

5 authors at 1 institution in 1 country.

Riannon SmithDepartment of Chemical and Biochemical Engineering, The University of IA, Iowa City, IA, United States.
Chris RubenDepartment of Chemical and Biochemical Engineering, The University of IA, Iowa City, IA, United States.
Ojas PradhanDepartment of Chemical and Biochemical Engineering, The University of IA, Iowa City, IA, United States.
Nicole BrogdenDepartment of Pharmaceutical Sciences and Experimental Therapeutics, The University of Iowa, Iowa City, IA, United States.
Jennifer FiegelDepartment of Chemical and Biochemical Engineering, The University of IA, Iowa City, IA, United States.
University of Iowa · US

Funding

PREDOCTORAL TRAINING PROGRAM IN BIOTECHNOLOGYT32GM008365 · NIGMS · UNIVERSITY OF IOWA · PI KERNS, ROBERT JOHN · 1990 to 2021
$3.8M
The effects of pharmacologic and physiologic variables on the pharmacokinetics of microneedle drug deliveryR35GM124551 · NIGMS · UNIVERSITY OF IOWA · PI BROGDEN, NICOLE K · 2017 to 2021
$2.1M
NIGMS NIH HHS R35 GM124551NIGMS NIH HHS T32 GM008365
6 · The paper itself

Abstract

objectiveSprayable hydrogel formulations are promising topical treatments for skin wounds due to their ability to reduce application pain, prolong drug release, and provide moisture to promote skin healing. These viscoelastic materials, however, present challenges in spray ability which can be overcome using a thermoreversible hydrogels sprayed as lower viscosity liquids at cooler temperatures. The purpose of this research was to evaluate the impact of thermoreversible hydrogel formulation and device characteristics on topical spray patterns and to develop metrics to accurately describe surface coverage.

methodsCold solutions of Pluronic F127 were prepared at 15, 17, and 20% (w/w) and tested to determine their rheological properties. Formulations were sprayed from hand-held atomizing pump dispersers under cold conditions and two distinct areas of their spray patterns analyzed: the concentrated core and the full spray pattern. Traditional analysis of spray patterns was conducted to determine major and minor axes, ovality, and total area. In addition, new scripts were developed to evaluate the concentrated core.

resultsThe full spray pattern analysis quantified the total area over which the spray would extend a flat surface, while the concentrated core analysis quantified the continuous region where a drug dose would be concentrated. The combination of formulation viscosity, sprayer nozzle, and spray distance produced spray patterns from highly concentrated to highly dispersed. These parameters can be controlled to generate desired hydrogel spray patterns for application on skin surfaces.

conclusionThe developed metrics provide a basis for topical spray analysis that can inform future product performance.

Indexed as

HydrogelsPoloxamerAdministration, TopicalTemperatureHydrogelsPoloxamerhydrogelpluronicSpray analysisspray patterntopical delivery

Identifiers

PMID37354008
PMCPMC11172404
OpenAlexW4381839450

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.