Preparation and Physicochemical, Structural and Morphological Characterization of Phosphorylated Starch
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Materials research (São Carlos. Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392017000800174 |
Resumo: | Phosphorylation of starch has resulted in appreciated material properties for applications in drug matrices. This study aimed to obtain and characterize samples of phosphorylated starch with sodium trimetaphosphate (STMP) and sodium tripolyphosphate (STPP). SEM micrographs allowed evidence that in relation to the starch in natura, the samples showed a loss of grain form in addition to formation of particle agglomerates. X-ray diffractograms of these samples indicated amorphization process, with modifications of the peaks in the region between 15 and 20 º 2θ. FTIR spectra of phosphorylated samples showed variations and new bands related to phosphorylation. Through of methylene blue adsorption isotherms it was observed better adjustment adsorptions on phosphorylated sample to Freundlich model. The new biomaterials showed adsorptive capacity of model cationic nature drug, demonstrate potentiality to application in controlled release systems. |
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Materials research (São Carlos. Online) |
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Preparation and Physicochemical, Structural and Morphological Characterization of Phosphorylated Starchsolubilitydegree substitutioncationic adsorbatePhosphorylation of starch has resulted in appreciated material properties for applications in drug matrices. This study aimed to obtain and characterize samples of phosphorylated starch with sodium trimetaphosphate (STMP) and sodium tripolyphosphate (STPP). SEM micrographs allowed evidence that in relation to the starch in natura, the samples showed a loss of grain form in addition to formation of particle agglomerates. X-ray diffractograms of these samples indicated amorphization process, with modifications of the peaks in the region between 15 and 20 º 2θ. FTIR spectra of phosphorylated samples showed variations and new bands related to phosphorylation. Through of methylene blue adsorption isotherms it was observed better adjustment adsorptions on phosphorylated sample to Freundlich model. The new biomaterials showed adsorptive capacity of model cationic nature drug, demonstrate potentiality to application in controlled release systems.ABM, ABC, ABPol2017-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392017000800174Materials Research v.20 suppl.2 2017reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/1980-5373-mr-2016-1008info:eu-repo/semantics/openAccessSechi,Natan da Silva MirandaMarques,Patricia Teixeiraeng2018-04-12T00:00:00Zoai:scielo:S1516-14392017000800174Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2018-04-12T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false |
dc.title.none.fl_str_mv |
Preparation and Physicochemical, Structural and Morphological Characterization of Phosphorylated Starch |
title |
Preparation and Physicochemical, Structural and Morphological Characterization of Phosphorylated Starch |
spellingShingle |
Preparation and Physicochemical, Structural and Morphological Characterization of Phosphorylated Starch Sechi,Natan da Silva Miranda solubility degree substitution cationic adsorbate |
title_short |
Preparation and Physicochemical, Structural and Morphological Characterization of Phosphorylated Starch |
title_full |
Preparation and Physicochemical, Structural and Morphological Characterization of Phosphorylated Starch |
title_fullStr |
Preparation and Physicochemical, Structural and Morphological Characterization of Phosphorylated Starch |
title_full_unstemmed |
Preparation and Physicochemical, Structural and Morphological Characterization of Phosphorylated Starch |
title_sort |
Preparation and Physicochemical, Structural and Morphological Characterization of Phosphorylated Starch |
author |
Sechi,Natan da Silva Miranda |
author_facet |
Sechi,Natan da Silva Miranda Marques,Patricia Teixeira |
author_role |
author |
author2 |
Marques,Patricia Teixeira |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Sechi,Natan da Silva Miranda Marques,Patricia Teixeira |
dc.subject.por.fl_str_mv |
solubility degree substitution cationic adsorbate |
topic |
solubility degree substitution cationic adsorbate |
description |
Phosphorylation of starch has resulted in appreciated material properties for applications in drug matrices. This study aimed to obtain and characterize samples of phosphorylated starch with sodium trimetaphosphate (STMP) and sodium tripolyphosphate (STPP). SEM micrographs allowed evidence that in relation to the starch in natura, the samples showed a loss of grain form in addition to formation of particle agglomerates. X-ray diffractograms of these samples indicated amorphization process, with modifications of the peaks in the region between 15 and 20 º 2θ. FTIR spectra of phosphorylated samples showed variations and new bands related to phosphorylation. Through of methylene blue adsorption isotherms it was observed better adjustment adsorptions on phosphorylated sample to Freundlich model. The new biomaterials showed adsorptive capacity of model cationic nature drug, demonstrate potentiality to application in controlled release systems. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-01-01 |
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=S1516-14392017000800174 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392017000800174 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1980-5373-mr-2016-1008 |
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 |
ABM, ABC, ABPol |
publisher.none.fl_str_mv |
ABM, ABC, ABPol |
dc.source.none.fl_str_mv |
Materials Research v.20 suppl.2 2017 reponame:Materials research (São Carlos. Online) instname:Universidade Federal de São Carlos (UFSCAR) instacron:ABM ABC ABPOL |
instname_str |
Universidade Federal de São Carlos (UFSCAR) |
instacron_str |
ABM ABC ABPOL |
institution |
ABM ABC ABPOL |
reponame_str |
Materials research (São Carlos. Online) |
collection |
Materials research (São Carlos. Online) |
repository.name.fl_str_mv |
Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR) |
repository.mail.fl_str_mv |
dedz@power.ufscar.br |
_version_ |
1754212671074336768 |