PMID- 30033310
OWN - NLM
STAT- MEDLINE
DCOM- 20181106
LR  - 20181106
IS  - 1873-0191 (Electronic)
IS  - 0928-4931 (Linking)
VI  - 91
DP  - 2018 Oct 1
TI  - Bicomponent fibres for controlled release of volatile mosquito repellents.
PG  - 754-761
LID - S0928-4931(17)33694-9 [pii]
LID - 10.1016/j.msec.2018.06.016 [doi]
AB  - Core-sheath structured fibres were developed for application as part of an 
      alternative malaria vector control intervention aimed at reducing outdoor malaria 
      transmission. The fibres were prepared by melt spinning of high density 
      polyethylene (HDPE) as sheath and with a concentrate containing volatile 
      N,N-Diethyl-m-toluamide (DEET) in poly(ethylene-co-vinyl acetate) (EVA) as core. 
      The concentrate was prepared by a simple absorption processes to a content up to 
      40 wt% DEET. Scanning electron microscope imaging confirmed the formation of a 
      bicomponent core-sheath fibre structure. Confocal Raman spectroscopy revealed the 
      development of a concentration gradient of DEET in the sheath layer, suggesting a 
      diffusion controlled release process. Excellent processability was demonstrated 
      on an extrusion system melt spinning with take up speeds reaching 3000 m min(-1). 
      Sample textiles knitted from such filaments showed high residual repellence 
      activity even after 20 cold washes or after eight months ageing under laboratory 
      conditions. These findings indicate that this technology offers an alternative 
      way to prevent outdoor mosquito bites in an effective and affordable manner.
CI  - Copyright (c) 2018 Elsevier B.V. All rights reserved.
FAU - Sibanda, Mthokozisi
AU  - Sibanda M
AD  - University of Pretoria Institute for Sustainable Malaria Control and MRC 
      Collaborating Centre for malaria research, University of Pretoria, Private Bag 
      X323, Pretoria 0001, South Africa; Institute of Applied Materials, Department of 
      Chemical Engineering, University of Pretoria, Private Bag X20, Hatfield 0028, 
      South Africa.
FAU - Focke, Walter
AU  - Focke W
AD  - University of Pretoria Institute for Sustainable Malaria Control and MRC 
      Collaborating Centre for malaria research, University of Pretoria, Private Bag 
      X323, Pretoria 0001, South Africa; Institute of Applied Materials, Department of 
      Chemical Engineering, University of Pretoria, Private Bag X20, Hatfield 0028, 
      South Africa. Electronic address: walter.focke@up.ac.za.
FAU - Braack, Leo
AU  - Braack L
AD  - University of Pretoria Institute for Sustainable Malaria Control and MRC 
      Collaborating Centre for malaria research, University of Pretoria, Private Bag 
      X323, Pretoria 0001, South Africa.
FAU - Leuteritz, Andreas
AU  - Leuteritz A
AD  - Leibniz Institute of Polymer Research Dresden (IPF), Hohe Strasse 6, 01069 
      Dresden, Germany.
FAU - Brunig, Harald
AU  - Brunig H
AD  - Leibniz Institute of Polymer Research Dresden (IPF), Hohe Strasse 6, 01069 
      Dresden, Germany.
FAU - Tran, Nguyen Hoai An
AU  - Tran NHA
AD  - Leibniz Institute of Polymer Research Dresden (IPF), Hohe Strasse 6, 01069 
      Dresden, Germany; Technische Universitat Dresden, Fakultat Maschinenwesen, 
      Institut fur Textilmaschinen und Textile Hochleistungswerkstofftechnik (ITM), 
      01062 Dresden, Germany.
FAU - Wieczorek, Florian
AU  - Wieczorek F
AD  - Technische Universitat Dresden, Fakultat Maschinenwesen, Institut fur 
      Textilmaschinen und Textile Hochleistungswerkstofftechnik (ITM), 01062 Dresden, 
      Germany.
FAU - Trumper, Wolfgang
AU  - Trumper W
AD  - Technische Universitat Dresden, Fakultat Maschinenwesen, Institut fur 
      Textilmaschinen und Textile Hochleistungswerkstofftechnik (ITM), 01062 Dresden, 
      Germany.
LA  - eng
PT  - Journal Article
DEP - 20180615
PL  - Netherlands
TA  - Mater Sci Eng C Mater Biol Appl
JT  - Materials science & engineering. C, Materials for biological applications
JID - 101484109
RN  - 0 (Delayed-Action Preparations)
RN  - 0 (Insect Repellents)
RN  - 134-62-3 (DEET)
RN  - 9002-88-4 (Polyethylene)
SB  - IM
MH  - Animals
MH  - Culicidae/*drug effects
MH  - DEET/*toxicity
MH  - Delayed-Action Preparations
MH  - Female
MH  - Imaging, Three-Dimensional
MH  - Insect Repellents/*toxicity
MH  - Polyethylene/*chemistry
MH  - Spectrum Analysis, Raman
MH  - Stress, Mechanical
MH  - Textiles
MH  - Thermogravimetry
MH  - Volatilization
OTO - NOTNLM
OT  - Bicomponent fibre
OT  - Controlled release
OT  - Malaria
OT  - Mosquitoes
OT  - Repellent
EDAT- 2018/07/24 06:00
MHDA- 2018/11/07 06:00
CRDT- 2018/07/24 06:00
PHST- 2017/09/13 00:00 [received]
PHST- 2018/05/11 00:00 [revised]
PHST- 2018/06/09 00:00 [accepted]
PHST- 2018/07/24 06:00 [entrez]
PHST- 2018/07/24 06:00 [pubmed]
PHST- 2018/11/07 06:00 [medline]
AID - S0928-4931(17)33694-9 [pii]
AID - 10.1016/j.msec.2018.06.016 [doi]
PST - ppublish
SO  - Mater Sci Eng C Mater Biol Appl. 2018 Oct 1;91:754-761. doi: 
      10.1016/j.msec.2018.06.016. Epub 2018 Jun 15.