Evidence map›Paper›PMID 31554258›Full record

ArticlePharmaceutics2019

Quasi-Dynamic Dissolution of Electrospun Polymeric Nanofibers Loaded with Piroxicam.

Urve Paaver, Jyrki Heinämäki, Ivan Kassamakov, Tuomo Ylitalo, Edward Hæggström, Ivo Laidmäe, Karin Kogermann

Open access · goldAbstract read
In one paragraph

Article in Pharmaceutics, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.4field-weighted citation impact, top 41% 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

3 citing papers in PubMed, 7 citations in OpenAlex.

  1. Article
  2. Review
  3. 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 at 2 institutions in 2 countries.

Urve PaaverInstitute of Pharmacy, Faculty of Medicine, University of Tartu, Nooruse 1, 50411 Tartu, Estonia. urve.paaver@ut.ee.
Jyrki HeinämäkiInstitute of Pharmacy, Faculty of Medicine, University of Tartu, Nooruse 1, 50411 Tartu, Estonia. jyrki.heinamaki@ut.ee.ORCID 0000-0002-5996-5144
Ivan KassamakovElectronics Laboratory, Department of Physics, P.O. Box 64 (Gustaf Hällströmin katu 2a), University of Helsinki, FI-00014 Helsinki, Finland. ivan.kassamakov@helsinki.fi.
Tuomo YlitaloElectronics Laboratory, Department of Physics, P.O. Box 64 (Gustaf Hällströmin katu 2a), University of Helsinki, FI-00014 Helsinki, Finland. tuomo.ylitalo@helsinki.fi.
Edward HæggströmElectronics Laboratory, Department of Physics, P.O. Box 64 (Gustaf Hällströmin katu 2a), University of Helsinki, FI-00014 Helsinki, Finland. edward.haeggstrom@helsinki.fi.
Ivo LaidmäeInstitute of Pharmacy, Faculty of Medicine, University of Tartu, Nooruse 1, 50411 Tartu, Estonia. ivo.laidmae@ut.ee.ORCID 0000-0001-5559-5476
Karin KogermannInstitute of Pharmacy, Faculty of Medicine, University of Tartu, Nooruse 1, 50411 Tartu, Estonia. karin.kogermann@ut.ee.
University of Tartu · EEUniversity of Helsinki · FI

Funding

Eesti Teadusagentuur IUT34-18Eesti Teadusagentuur PUT1088
6 · The paper itself

Abstract

We investigated and monitored in situ the wetting and dissolution properties of polymeric nanofibers and determined the solid-state of a drug during dissolution. Piroxicam (PRX) was used as a low-dose and poorly-soluble model drug, and hydroxypropyl methylcellulose (HPMC) and polydextrose (PD) were used as carrier polymers for electrospinning (ES). The initial-stage dissolution of the nanofibers was monitored in situ with three-dimensional white light microscopic interferometry (SWLI) and high-resolution optical microscopy. The physical solid-state characterization of nanofibers was performed with Raman spectroscopy, X-ray powder diffraction (XRPD), and scanning electron microscopy (SEM). We showed that PRX recrystallizes in a microcrystalline form immediately after wetting of nanofibers, which could lead to enhanced dissolution of drug. Initiation of crystal formation was detected by SWLI, indicating: (1) that PRX was partially released from the nanofibers, and (2) that the solid-state form of PRX changed from amorphous to crystalline. The amount, shape, and size of the PRX crystals depended on the carrier polymer used in the nanofibers and dissolution media (pH). In conclusion, the present nanofibers loaded with PRX exhibit a quasi-dynamic dissolution via recrystallization. SWLI enables a rapid, non-contacting, and non-destructive method for in situ monitoring the early-stage dissolution of nanofibers and regional mapping of crystalline changes (re-crystallization) during wetting. Such analysis is crucial because the wetting and dissolution of nanofibers can greatly influence the performance of nanofibrous drug delivery systems in pharmaceutical and biomedical applications.

Indexed as

electrospinninghydroxypropyl methyl cellulosein situ drug releasenanofiberspiroxicampolydextrosepoorly water-soluble drugscanning white light interferometrywetting

Identifiers

PMID31554258
PMCPMC6835728
OpenAlexW2976486670

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.