Evidence map›Paper›PMID 34641433›Full record

ArticleMolecules (Basel, Switzerland)2021

Properties of Mosquito Repellent-Plasticized Poly(lactic acid) Strands.

António B Mapossa, Jorge López-Beceiro, Ana María Díaz-Díaz, Ramón Artiaga, Dennis S Moyo, Thabang N Mphateng, Walter W Focke

Open access · goldAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Molecules (Basel, Switzerland), 2021. 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 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

2 citing papers in PubMed, 10 citations in OpenAlex.

  1. Review
  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

7 authors at 2 institutions in 2 countries.

António B MapossaInstitute of Applied Materials, Department of Chemical Engineering, University of Pretoria, Lynnwood Road, Private Bag X20, Hatfield, Pretoria 0028, South Africa.ORCID 0000-0003-3824-5356
Jorge López-BeceiroHigher Polytechnical School, University of A Coruña (UDC), 15471 Ferrol, Spain.ORCID 0000-0001-6438-3520
Ana María Díaz-DíazHigher Polytechnical School, University of A Coruña (UDC), 15471 Ferrol, Spain.ORCID 0000-0002-6830-5498
Ramón ArtiagaHigher Polytechnical School, University of A Coruña (UDC), 15471 Ferrol, Spain.ORCID 0000-0003-2506-7263
Dennis S MoyoUP Institute for Sustainable Malaria Control & MRC Collaborating Centre for Malaria Research, University of Pretoria, Private Bag X20, Hatfield, Pretoria 0028, South Africa.ORCID 0000-0002-0154-0135
Thabang N MphatengInstitute of Applied Materials, Department of Chemical Engineering, University of Pretoria, Lynnwood Road, Private Bag X20, Hatfield, Pretoria 0028, South Africa.ORCID 0000-0003-3641-3977
Walter W FockeInstitute of Applied Materials, Department of Chemical Engineering, University of Pretoria, Lynnwood Road, Private Bag X20, Hatfield, Pretoria 0028, South Africa.ORCID 0000-0002-8512-8948
University of Pretoria · ZAUniversidade da Coruña · ES

Funding

This work was financially supported from the University of Pretoria (UP) Postdoctoral Fellowship programme. The research has been also supported by Spanish MINECO grant MTM2017-82724-R through the ERDF. MTM2017-82724-R
6 · The paper itself

Abstract

Poly(lactic acid) (PLA) is an attractive candidate for replacing petrochemical polymers because it is fully biodegradable. This study investigated the potential of PLA as a sustainable and environmentally friendly alternative material that can be developed into commercially viable wearable mosquito repellent devices with desirable characteristics. PLA strands containing DEET and IR3535 were prepared by twin screw extrusion compounding and simultaneously functioned as plasticizers for the polymer. The plasticizing effect was investigated by thermal and rheological studies. DSC studies showed that the addition of DEET and IR3535 into PLA strands reduced the glass transition temperature consistent with predictions of the Fox equation, thus proving their efficiency as plasticizers. The rheology of molten samples of neat PLA and PLA/repellents blends, evaluated at 200 °C, was consistent with shear-thinning pseudoplastic behaviour. Raman studies revealed a nonlinear concentration gradient for DEET in the PLA strand, indicating non-Fickian Type II transport controlling the desorption process. Release data obtained at 50 °C showed initial rapid release followed by a slower, near constant rate at longer times. The release rate data were fitted to a novel modification of the Peppas-Sahlin desorption model.

Indexed as

AnimalsCulicidaeInsect RepellentsPlasticizersPolyestersPolymersRheologyTemperatureInsect RepellentsPlasticizersPolyesterspoly(lactide)Polymersdesorptionmosquito repellentspolymer strandsrheologythermal analysis

Identifiers

PMID34641433
PMCPMC8512872
OpenAlexW3202599672

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.