Fiber orientation on 3D structured collectors for electrospinning

Electrospinning, a standard technique for producing nonwoven fabrics, is widely used in the biomedical field. Due to local electric fields, fiber deposition is influenced by 3D surface structure of metallic collectors. For complex shaped structures, predicting the deposition and orientation of the f...

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Main Authors: Götz Andreas, Grabow Niels, Illner Sabine
Format: Article
Language:English
Published: De Gruyter 2022-09-01
Series:Current Directions in Biomedical Engineering
Subjects:
Online Access:https://doi.org/10.1515/cdbme-2022-1093
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author Götz Andreas
Grabow Niels
Illner Sabine
author_facet Götz Andreas
Grabow Niels
Illner Sabine
author_sort Götz Andreas
collection DOAJ
description Electrospinning, a standard technique for producing nonwoven fabrics, is widely used in the biomedical field. Due to local electric fields, fiber deposition is influenced by 3D surface structure of metallic collectors. For complex shaped structures, predicting the deposition and orientation of the fibers remains challenging. Investigations on well-defined structures permit a more detailed insight. In this study, metal blocks with round, slit and square holes of various sizes and depths were fabricated and covered with a thin layer of polymer fibers. The fiber arrangement of the layer was investigated by different microscopic methods. Analysis of the results showed less deposition on round holes and well-bridged aligned fibers on gaps which were less than four times wide as deep. Experimental results confirmed the theoretical predictions. Considering these findings, further work can be addressed to specific collector design to attain targeted fiber deposition.
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spelling doaj.art-d512bec38bc54f6c8f51be6998eb69422023-03-06T10:24:52ZengDe GruyterCurrent Directions in Biomedical Engineering2364-55042022-09-018236436710.1515/cdbme-2022-1093Fiber orientation on 3D structured collectors for electrospinningGötz Andreas0Grabow Niels1Illner Sabine2Institute for Biomedical Engineering, University Medical Center Rostock, Friedrich- Barnewitz-Str. 4, 18119Rostock, GermanyInstitute for Biomedical Engineering, University Medical Center Rostock,Rostock, GermanyInstitute for Biomedical Engineering, University Medical Center Rostock,Rostock, GermanyElectrospinning, a standard technique for producing nonwoven fabrics, is widely used in the biomedical field. Due to local electric fields, fiber deposition is influenced by 3D surface structure of metallic collectors. For complex shaped structures, predicting the deposition and orientation of the fibers remains challenging. Investigations on well-defined structures permit a more detailed insight. In this study, metal blocks with round, slit and square holes of various sizes and depths were fabricated and covered with a thin layer of polymer fibers. The fiber arrangement of the layer was investigated by different microscopic methods. Analysis of the results showed less deposition on round holes and well-bridged aligned fibers on gaps which were less than four times wide as deep. Experimental results confirmed the theoretical predictions. Considering these findings, further work can be addressed to specific collector design to attain targeted fiber deposition.https://doi.org/10.1515/cdbme-2022-1093fiber alignmentelectric fieldbridginghole shapegap
spellingShingle Götz Andreas
Grabow Niels
Illner Sabine
Fiber orientation on 3D structured collectors for electrospinning
Current Directions in Biomedical Engineering
fiber alignment
electric field
bridging
hole shape
gap
title Fiber orientation on 3D structured collectors for electrospinning
title_full Fiber orientation on 3D structured collectors for electrospinning
title_fullStr Fiber orientation on 3D structured collectors for electrospinning
title_full_unstemmed Fiber orientation on 3D structured collectors for electrospinning
title_short Fiber orientation on 3D structured collectors for electrospinning
title_sort fiber orientation on 3d structured collectors for electrospinning
topic fiber alignment
electric field
bridging
hole shape
gap
url https://doi.org/10.1515/cdbme-2022-1093
work_keys_str_mv AT gotzandreas fiberorientationon3dstructuredcollectorsforelectrospinning
AT grabowniels fiberorientationon3dstructuredcollectorsforelectrospinning
AT illnersabine fiberorientationon3dstructuredcollectorsforelectrospinning