Superhydrophobic surfaces produced using natural silica-based structures with potential for biomedical applications

Bibliographic Details
Main Author: Oliveira, Nuno M.
Publication Date: 2013
Other Authors: Reis, R. L., Mano, J. F.
Language: eng
Source: Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
Download full: http://hdl.handle.net/1822/26968
Summary: Publicado em "Journal of Tissue Engineering and Regenerative Medicine", vol. 17, supp. 1 (2013)
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spelling Superhydrophobic surfaces produced using natural silica-based structures with potential for biomedical applicationsBioinspirationDiatomaceous earthMicropatterningSuperhydrophobic surfacesSurface modificationPublicado em "Journal of Tissue Engineering and Regenerative Medicine", vol. 17, supp. 1 (2013)Superhydrophobic surfaces (SHS) are characterized for exhibit extreme water repellency. Where water droplets roll easily and have a contact angle higher than 150º. The inspiration to produce artificial SHS comes from nature, the Lotus leaf. Hierarchical surface topographies at micro/nanoscale are critical for this effect. On biomedical and tissue engineering fields several applications for SHS has been developed. Such as microfluidic platforms to perform studies in mimic in vivo environment similar to human body.1 SHS are also used to produced spherical parti cles without using any precipitation bath. The method permit to produce particles for controlled drug delivery in one step with high encapsulation efficiency.2 Cells was also encapsulated and a system to be used in tissue regeneration was obtained.3 Other promising application for SHS is high-throughput screening. Using SHS, platforms to analyze several materials/formulations at the same time were developed. These platforms permit to perform combinatorial studies with cells/biomaterial to screen cytocompatibility.4 Several strategies were developed to produce SHS: polymer reconformation, template method or sol-gel processing. One strategy involves producing roughness by silica micro/nanoparticles deposition on glass slides. Other is to use natural structures as templates that exhibit the necessary hierarchical structure.These two strategies inspired us to develop a new approach to generate SHS. We use silica-based structures already available in nature to create the necessary hierarchical topography. We use diatomaceous earth directly on the surface and not as templates. The diatomaceous exoskeletons are microstructures with nanotextures. These microstructures were used to coat smooth surfaces and create a hierarchical roughness on surfaces. By fluorosilanization a SHS was achieved. The wettability of the produced surfaces can be precisely controlled by exposing the substrates to plasma treatment for specific times. The control in space of the treatment can be used to imprint hydrophilic patterns on the SHS. This make promising the use of developed SHS in several of the above cited applications. The developed strategy can be applied in different kinds of substrates. The versatility of the developed method to produce SHS show high potential for biomedical and tissue engineering applicationsJohn Wiley and SonsUniversidade do MinhoOliveira, Nuno M.Reis, R. L.Mano, J. F.2013-092013-09-01T00:00:00Zconference objectinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/1822/26968engOliveira N. M., Reis R. L., Mano J. F. Superhydrophobic surfaces produced using natural silica-based structures with potential for biomedical applications, Journal of Tissue Engineering and Regenerative Medicine, Vol. 7, Issue S1, pp. 26, doi:10.1002/term.1822, 2013http://onlinelibrary.wiley.com/doi/10.1002/term.2013.7.issue-s1/issuetocinfo:eu-repo/semantics/openAccessreponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiainstacron:RCAAP2024-05-11T05:46:03Zoai:repositorium.sdum.uminho.pt:1822/26968Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireinfo@rcaap.ptopendoar:https://opendoar.ac.uk/repository/71602025-05-28T15:29:12.336562Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiafalse
dc.title.none.fl_str_mv Superhydrophobic surfaces produced using natural silica-based structures with potential for biomedical applications
title Superhydrophobic surfaces produced using natural silica-based structures with potential for biomedical applications
spellingShingle Superhydrophobic surfaces produced using natural silica-based structures with potential for biomedical applications
Oliveira, Nuno M.
Bioinspiration
Diatomaceous earth
Micropatterning
Superhydrophobic surfaces
Surface modification
title_short Superhydrophobic surfaces produced using natural silica-based structures with potential for biomedical applications
title_full Superhydrophobic surfaces produced using natural silica-based structures with potential for biomedical applications
title_fullStr Superhydrophobic surfaces produced using natural silica-based structures with potential for biomedical applications
title_full_unstemmed Superhydrophobic surfaces produced using natural silica-based structures with potential for biomedical applications
title_sort Superhydrophobic surfaces produced using natural silica-based structures with potential for biomedical applications
author Oliveira, Nuno M.
author_facet Oliveira, Nuno M.
Reis, R. L.
Mano, J. F.
author_role author
author2 Reis, R. L.
Mano, J. F.
author2_role author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Oliveira, Nuno M.
Reis, R. L.
Mano, J. F.
dc.subject.por.fl_str_mv Bioinspiration
Diatomaceous earth
Micropatterning
Superhydrophobic surfaces
Surface modification
topic Bioinspiration
Diatomaceous earth
Micropatterning
Superhydrophobic surfaces
Surface modification
description Publicado em "Journal of Tissue Engineering and Regenerative Medicine", vol. 17, supp. 1 (2013)
publishDate 2013
dc.date.none.fl_str_mv 2013-09
2013-09-01T00:00:00Z
dc.type.driver.fl_str_mv conference object
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/1822/26968
url http://hdl.handle.net/1822/26968
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Oliveira N. M., Reis R. L., Mano J. F. Superhydrophobic surfaces produced using natural silica-based structures with potential for biomedical applications, Journal of Tissue Engineering and Regenerative Medicine, Vol. 7, Issue S1, pp. 26, doi:10.1002/term.1822, 2013
http://onlinelibrary.wiley.com/doi/10.1002/term.2013.7.issue-s1/issuetoc
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv John Wiley and Sons
publisher.none.fl_str_mv John Wiley and Sons
dc.source.none.fl_str_mv reponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron:RCAAP
instname_str FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron_str RCAAP
institution RCAAP
reponame_str Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
collection Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
repository.name.fl_str_mv Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
repository.mail.fl_str_mv info@rcaap.pt
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