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Development of magnetoactive elastomers for sealing eye retina detachments
Journal of applied polymer science, 2019-05, Vol.136 (17), p.n/a
Alekhina, Yulia A.
Makarova, Liudmila A.
Kostrov, Sergei A.
Stepanov, Gennady V.
Kazimirova, Elena G.
Perov, Nikolay S.
Kramarenko, Elena Yu
2019
Details
Autor(en) / Beteiligte
Alekhina, Yulia A.
Makarova, Liudmila A.
Kostrov, Sergei A.
Stepanov, Gennady V.
Kazimirova, Elena G.
Perov, Nikolay S.
Kramarenko, Elena Yu
Titel
Development of magnetoactive elastomers for sealing eye retina detachments
Ist Teil von
Journal of applied polymer science, 2019-05, Vol.136 (17), p.n/a
Ort / Verlag
Hoboken, USA: John Wiley & Sons, Inc
Erscheinungsjahr
2019
Link zum Volltext
Quelle
Wiley Online Library
Beschreibungen/Notizen
ABSTRACT Magnetoactive elastomers (MAEs) on the basis of a silicone matrix filled with carbonyl iron microparticles are developed for an envisaged application in eye surgery for treatment of complicated retinal detachments. The proposed magnetic fixator of an eye retina consists of an MAE seal placed inside an eye in the area of a retinal break, and an external silicone sponge with embedded permanent magnets which can be sutured to the sclera to provide magnetic field acting on the internal MAE seal. For MAE seal development, MAEs of various compositions (containing 52–76 mass% of ferromagnetic iron microparticles) are synthesized and their surface, magnetic, mechanical, and rheological properties are investigated in external magnetic fields. To demonstrate MAEs efficacy as an element of the retina magnetic fixator, magnetic forces acting between MAE samples and systems of permanent magnets were measured in the curved configuration corresponding to the human eye geometry. It has been demonstrated that the pressure produced within the fixator can be varied in a wide range by tuning the MAE composition and MAE seal dimensions as well as by optimizing the size and configuration of permanent magnets within the external silicone sponge. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47425.
Sprache
Englisch
Identifikatoren
ISSN: 0021-8995
eISSN: 1097-4628
DOI: 10.1002/app.47425
Titel-ID: cdi_proquest_journals_2170826563
Format
–
Schlagworte
biomedical applications
,
Carbonyls
,
composites
,
Composition
,
Configurations
,
Elastomers
,
Ferromagnetism
,
Iron
,
Magnetic fields
,
Magnetic properties
,
Magnetism
,
magnetism and magnetic properties
,
Materials science
,
mechanical properties
,
Microparticles
,
Permanent magnets
,
Polymers
,
Retina
,
Rheological properties
,
stimuli‐sensitive polymers
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