Use of thin films obtained by plasma polymerization for grain protection and germination enhancement

Detalhes bibliográficos
Autor(a) principal: Carvalho,Rodrigo A. M.
Data de Publicação: 2005
Outros Autores: Carvalho,Alexsander T., Silva,Maria Lúcia P. da, Demarquette,Nicole R., Assis,Odílio B. G.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Química Nova (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422005000600014
Resumo: In this work, preliminary results of the use of hydrophobic thin films obtained by plasma deposition to protect grains and seeds are presented: grains coated by the films did not present biological degradation when stored in a saturated water vapor environment, but had their germination accelerated in the presence of water. A model that explains the difference of behavior of the films when exposed to water in vapor form or in liquid form, based on the formation of microchannels within the film that lead to water uptake in seeds, is presented. The model was successfully tested using quartz crystal measurements, which showed that the microchannels within the films can favor the adsorption and permeation of water when the films are immersed in water.
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spelling Use of thin films obtained by plasma polymerization for grain protection and germination enhancementgermination enhancementplasma polymerizationTEOSIn this work, preliminary results of the use of hydrophobic thin films obtained by plasma deposition to protect grains and seeds are presented: grains coated by the films did not present biological degradation when stored in a saturated water vapor environment, but had their germination accelerated in the presence of water. A model that explains the difference of behavior of the films when exposed to water in vapor form or in liquid form, based on the formation of microchannels within the film that lead to water uptake in seeds, is presented. The model was successfully tested using quartz crystal measurements, which showed that the microchannels within the films can favor the adsorption and permeation of water when the films are immersed in water.Sociedade Brasileira de Química2005-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422005000600014Química Nova v.28 n.6 2005reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0100-40422005000600014info:eu-repo/semantics/openAccessCarvalho,Rodrigo A. M.Carvalho,Alexsander T.Silva,Maria Lúcia P. daDemarquette,Nicole R.Assis,Odílio B. G.eng2005-12-12T00:00:00Zoai:scielo:S0100-40422005000600014Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2005-12-12T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Use of thin films obtained by plasma polymerization for grain protection and germination enhancement
title Use of thin films obtained by plasma polymerization for grain protection and germination enhancement
spellingShingle Use of thin films obtained by plasma polymerization for grain protection and germination enhancement
Carvalho,Rodrigo A. M.
germination enhancement
plasma polymerization
TEOS
title_short Use of thin films obtained by plasma polymerization for grain protection and germination enhancement
title_full Use of thin films obtained by plasma polymerization for grain protection and germination enhancement
title_fullStr Use of thin films obtained by plasma polymerization for grain protection and germination enhancement
title_full_unstemmed Use of thin films obtained by plasma polymerization for grain protection and germination enhancement
title_sort Use of thin films obtained by plasma polymerization for grain protection and germination enhancement
author Carvalho,Rodrigo A. M.
author_facet Carvalho,Rodrigo A. M.
Carvalho,Alexsander T.
Silva,Maria Lúcia P. da
Demarquette,Nicole R.
Assis,Odílio B. G.
author_role author
author2 Carvalho,Alexsander T.
Silva,Maria Lúcia P. da
Demarquette,Nicole R.
Assis,Odílio B. G.
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Carvalho,Rodrigo A. M.
Carvalho,Alexsander T.
Silva,Maria Lúcia P. da
Demarquette,Nicole R.
Assis,Odílio B. G.
dc.subject.por.fl_str_mv germination enhancement
plasma polymerization
TEOS
topic germination enhancement
plasma polymerization
TEOS
description In this work, preliminary results of the use of hydrophobic thin films obtained by plasma deposition to protect grains and seeds are presented: grains coated by the films did not present biological degradation when stored in a saturated water vapor environment, but had their germination accelerated in the presence of water. A model that explains the difference of behavior of the films when exposed to water in vapor form or in liquid form, based on the formation of microchannels within the film that lead to water uptake in seeds, is presented. The model was successfully tested using quartz crystal measurements, which showed that the microchannels within the films can favor the adsorption and permeation of water when the films are immersed in water.
publishDate 2005
dc.date.none.fl_str_mv 2005-12-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422005000600014
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422005000600014
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0100-40422005000600014
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Química
publisher.none.fl_str_mv Sociedade Brasileira de Química
dc.source.none.fl_str_mv Química Nova v.28 n.6 2005
reponame:Química Nova (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
reponame_str Química Nova (Online)
collection Química Nova (Online)
repository.name.fl_str_mv Química Nova (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv quimicanova@sbq.org.br
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