Evidence map›Paper›PMID 34616584›Full record

ArticleBiomedical engineering letters2021

Assessment of structural, biological and drug release properties of electro-sprayed poly lactic acid-dexamethasone coating for biomedical applications.

Mostafa Rahvar, Gholamreza Ahmadi Lakalayeh, Niloofar Nazeri, Bahereh T Marouf, Mahdieh Shirzad, Azar Najafi T Shabankareh, Hossein Ghanbari

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Article in Biomedical engineering letters, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.6field-weighted citation impact, top 38% 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

4 citing papers in PubMed, 14 citations in OpenAlex.

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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 5 institutions in 1 country.

Mostafa RahvarDepartment of Medical Nanotechnology, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences (IUMS), Tehran, Iran.
Gholamreza Ahmadi LakalayehDepartment of Medical Nanotechnology, School of Advanced Technologies in Medicine (SATM), Tehran University of Medical Sciences (TUMS), Italia Street, Tehran, Iran.
Niloofar NazeriDepartment of Medical Nanotechnology, School of Advanced Technologies in Medicine (SATM), Tehran University of Medical Sciences (TUMS), Italia Street, Tehran, Iran.
Bahereh T MaroufDepartment of Materials Science and Engineering, Faculty of Engineering, Urmia University, Urmia, Iran.
Mahdieh ShirzadDepartment of Microbiology, School of Biology and Center of Excellence in Phylogeny of Living Organisms, College of Science, University of Tehran, Tehran, Iran.
Azar Najafi T ShabankarehDepartment of Medical Nanotechnology, School of Advanced Technologies in Medicine (SATM), Tehran University of Medical Sciences (TUMS), Italia Street, Tehran, Iran.
Hossein GhanbariDepartment of Medical Nanotechnology, School of Advanced Technologies in Medicine (SATM), Tehran University of Medical Sciences (TUMS), Italia Street, Tehran, Iran.ORCID 0000-0001-7639-995X
Tehran University of Medical Sciences · IRIran University of Medical Sciences · IRQazvin University of Medical Sciences · IRUniversity of Tehran · IRUrmia University · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The efficacy of an implant is highly depends on its coating characteristics mainly determined by polymer properties and coating technique. Electro-spraying is an inexpensive and versatile coating technique with various advantages for biomedical application. In this study, the efficacy of electro-sprayed (ES) poly lactic acid (PLA)-dexamethasone (DEX) coatings for medical implants was evaluated and compared with spin-coated samples as control. Structural properties of coatings were investigated using X-ray diffraction (XRD) and differential scanning calorimetry (DSC). Confocal and scanning electron microscopy (SEM), contact angle measurement and nanoindentation tests were used to study surface properties. Coating degradation rate and drug release profile were studied for 40 days. Cell viability experiments were also performed on human endothelial (HUVEC) and smooth muscle cells (HUASMC) using MTT assay and SEM. XRD and DSC analysis showed electro-spraying significantly reduce PLA and DEX crystallinity. Surface studies showed ES coatings has significantly higher hydrophobicity and roughness with microbead-nanofiber morphology vs. micro-nanoporous structure of spin-coated samples. Initial burst release of DEX was 22% and 10% after 6 h and total release was 71% and 46% after 40 days for ES and spin-coated samples, respectively. HUVEC viability of ES samples was higher than spin-coated ones after 1 and 4 days. However, dexamethasone release profile reduced HUASMC proliferation in ES PLA-DEX samples in comparison to spin-coated after 1 and 3 days. In conclusion, in vitro results showed potential of ES PLA-DEX as a biocompatible and efficient anti-inflammatory coating with suitable drug release profile for future applications such as coronary drug eluting stents.

Indexed as

BiodegradationDrug releaseImplantsNano topographyWettability

Identifiers

PMID34616584
PMCPMC8486896
OpenAlexW3198493024

What OpenQuestion holds

Textmetadata
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.