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Biomimetic electrospun coatings increase the in vivo sensitivity of implantable glucose biosensors
In vivo tissue responses and functional efficacy of electrospun membranes based on polyurethane (PU) and gelatin (GE) as biomimetic coatings for implantable glucose biosensors was investigated in a rat subcutaneous implantation model. Three electrospun membranes with optimized fiber diameters, pore...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley and Sons Inc.
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5826864/ https://www.ncbi.nlm.nih.gov/pubmed/29226509 http://dx.doi.org/10.1002/jbm.a.36308 |
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author | Burugapalli, Krishna Wijesuriya, Shavini Wang, Ning Song, Wenhui |
author_facet | Burugapalli, Krishna Wijesuriya, Shavini Wang, Ning Song, Wenhui |
author_sort | Burugapalli, Krishna |
collection | PubMed |
description | In vivo tissue responses and functional efficacy of electrospun membranes based on polyurethane (PU) and gelatin (GE) as biomimetic coatings for implantable glucose biosensors was investigated in a rat subcutaneous implantation model. Three electrospun membranes with optimized fiber diameters, pore sizes, and permeability, both single PU and coaxial PU‐GE fibers and a solvent cast PU film were implanted in rats to evaluate tissue responses. For functional efficacy testing, four sensor variants coated with the above mentioned electrospun membranes as mass‐transport limiting and outermost biomimetic coatings were implanted in rats. The electrospun PU membranes had micron sized pores that were not permeable to host cells when implanted in the body. However, PU‐GE coaxial fiber membranes, having similar sized pores, were infiltrated with fibroblasts that deposited collagen in the membrane's pores. Such tissue response prevented the formation of dense fibrous capsule around the sensor coated with the PU‐GE coaxial fiber membranes, which helped improve the in vivo sensitivity for at least 3 weeks compared to the traditional sensors in rat subcutaneous tissue. Furthermore, the better in vitro sensor's sensitivity due to electrospun PU as the mass‐transport limiting membrane translated to better in vivo sensitivity. Thus, this study showed that electrospun membranes can play an important role in realizing long in vivo sensing lifetime of implantable glucose biosensors. © 2017 The Authors Journal of Biomedical Materials Research Part A Published by Wiley Periodicals, Inc. J Biomed Mater Res Part A: 106A: 1072–1081, 2018. |
format | Online Article Text |
id | pubmed-5826864 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | John Wiley and Sons Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-58268642018-05-17 Biomimetic electrospun coatings increase the in vivo sensitivity of implantable glucose biosensors Burugapalli, Krishna Wijesuriya, Shavini Wang, Ning Song, Wenhui J Biomed Mater Res A Original Articles In vivo tissue responses and functional efficacy of electrospun membranes based on polyurethane (PU) and gelatin (GE) as biomimetic coatings for implantable glucose biosensors was investigated in a rat subcutaneous implantation model. Three electrospun membranes with optimized fiber diameters, pore sizes, and permeability, both single PU and coaxial PU‐GE fibers and a solvent cast PU film were implanted in rats to evaluate tissue responses. For functional efficacy testing, four sensor variants coated with the above mentioned electrospun membranes as mass‐transport limiting and outermost biomimetic coatings were implanted in rats. The electrospun PU membranes had micron sized pores that were not permeable to host cells when implanted in the body. However, PU‐GE coaxial fiber membranes, having similar sized pores, were infiltrated with fibroblasts that deposited collagen in the membrane's pores. Such tissue response prevented the formation of dense fibrous capsule around the sensor coated with the PU‐GE coaxial fiber membranes, which helped improve the in vivo sensitivity for at least 3 weeks compared to the traditional sensors in rat subcutaneous tissue. Furthermore, the better in vitro sensor's sensitivity due to electrospun PU as the mass‐transport limiting membrane translated to better in vivo sensitivity. Thus, this study showed that electrospun membranes can play an important role in realizing long in vivo sensing lifetime of implantable glucose biosensors. © 2017 The Authors Journal of Biomedical Materials Research Part A Published by Wiley Periodicals, Inc. J Biomed Mater Res Part A: 106A: 1072–1081, 2018. John Wiley and Sons Inc. 2017-12-23 2018-04 /pmc/articles/PMC5826864/ /pubmed/29226509 http://dx.doi.org/10.1002/jbm.a.36308 Text en © 2017 The Authors Journal of Biomedical Materials Research Part A Published by Wiley Periodicals, Inc. This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes. |
spellingShingle | Original Articles Burugapalli, Krishna Wijesuriya, Shavini Wang, Ning Song, Wenhui Biomimetic electrospun coatings increase the in vivo sensitivity of implantable glucose biosensors |
title | Biomimetic electrospun coatings increase the in vivo sensitivity of implantable glucose biosensors |
title_full | Biomimetic electrospun coatings increase the in vivo sensitivity of implantable glucose biosensors |
title_fullStr | Biomimetic electrospun coatings increase the in vivo sensitivity of implantable glucose biosensors |
title_full_unstemmed | Biomimetic electrospun coatings increase the in vivo sensitivity of implantable glucose biosensors |
title_short | Biomimetic electrospun coatings increase the in vivo sensitivity of implantable glucose biosensors |
title_sort | biomimetic electrospun coatings increase the in vivo sensitivity of implantable glucose biosensors |
topic | Original Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5826864/ https://www.ncbi.nlm.nih.gov/pubmed/29226509 http://dx.doi.org/10.1002/jbm.a.36308 |
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