Publication
Chitosan Nanocomposites with Graphene-Based Filler
| Summary: | This study evaluates the properties of chitosan (CS) membranes modified with different percentages (0.5%, 3%, and 5% w/w) of a graphene-based material. Graphene oxide (GO) and reduced graphene oxide (RGO) were obtained by the chemical exfoliation of graphite and thermal reduction. Then, they were characterized by electrical conductivity measurements, FESEM, XRD, AFM, and Raman spectroscopy. The composites’ morphology was evaluated by FESEM. The degree of swelling over a 48 h period and mass loss behavior in phosphate-buffered saline solution for up to 70 days were also studied. The hydrophilicity of the CS and CS/graphene nanocomposites was examined by water contact angle. The graphene materials showed small stacks (6-8 sheets) with low defect density and nanoscale thickness (1.3-5.9 nm). The dispersion of the graphene material in the CS matrix significantly decreased the degree of swelling (460%) but did not modify the hydrolytic degradation process and the hydrophilicity of membranes. |
|---|---|
| Main Authors: | Maraschin,Thuany Garcia |
| Other Authors: | Correa,Roberto da Silva; Rodrigues,Luiz Frederico; Balzarettid,Naira Maria; Malmonge,José Antonio; Galland,Griselda Barrera; Basso,Nara Regina de Souza |
| Subject: | Graphene oxide reduced graphene oxide, chitosan biodegradable polymer |
| Year: | 2019 |
| Country: | Brazil |
| Document type: | article |
| Access type: | open access |
| Associated institution: | IBICT |
| Language: | English |
| Origin: | Oasisbr |
| _version_ | 1871510407218200576 |
|---|---|
| author | Maraschin,Thuany Garcia |
| author2 | Correa,Roberto da Silva Rodrigues,Luiz Frederico Balzarettid,Naira Maria Malmonge,José Antonio Galland,Griselda Barrera Basso,Nara Regina de Souza |
| author2_role | author author author author author author |
| author_facet | Maraschin,Thuany Garcia Correa,Roberto da Silva Rodrigues,Luiz Frederico Balzarettid,Naira Maria Malmonge,José Antonio Galland,Griselda Barrera Basso,Nara Regina de Souza |
| author_role | author |
| country_str | BR |
| creators_json_txt | [{\"Person.name\":\"Maraschin,Thuany Garcia\"},{\"Person.name\":\"Correa,Roberto da Silva\"},{\"Person.name\":\"Rodrigues,Luiz Frederico\"},{\"Person.name\":\"Balzarettid,Naira Maria\"},{\"Person.name\":\"Malmonge,José Antonio\"},{\"Person.name\":\"Galland,Griselda Barrera\"},{\"Person.name\":\"Basso,Nara Regina de Souza\"}] |
| datacite.creators.creator.creatorName.fl_str_mv | Maraschin,Thuany Garcia Correa,Roberto da Silva Rodrigues,Luiz Frederico Balzarettid,Naira Maria Malmonge,José Antonio Galland,Griselda Barrera Basso,Nara Regina de Souza |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| datacite.subjects.subject.fl_str_mv | Graphene oxide reduced graphene oxide, chitosan biodegradable polymer |
| datacite.titles.title.fl_str_mv | Chitosan Nanocomposites with Graphene-Based Filler |
| dc.creator.none.fl_str_mv | Maraschin,Thuany Garcia Correa,Roberto da Silva Rodrigues,Luiz Frederico Balzarettid,Naira Maria Malmonge,José Antonio Galland,Griselda Barrera Basso,Nara Regina de Souza |
| dc.format.none.fl_str_mv | text/html |
| dc.identifier.none.fl_str_mv | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392019000700288 |
| dc.language.none.fl_str_mv | eng |
| dc.publisher.none.fl_str_mv | ABM, ABC, ABPol |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| dc.source.none.fl_str_mv | Materials Research v.22 suppl.1 2019 reponame:Materials research (São Carlos. Online) instname:Universidade Federal de São Carlos (UFSCAR) instacron:ABM ABC ABPOL |
| dc.subject.none.fl_str_mv | Graphene oxide reduced graphene oxide, chitosan biodegradable polymer |
| dc.title.fl_str_mv | Chitosan Nanocomposites with Graphene-Based Filler |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_6501 |
| description | This study evaluates the properties of chitosan (CS) membranes modified with different percentages (0.5%, 3%, and 5% w/w) of a graphene-based material. Graphene oxide (GO) and reduced graphene oxide (RGO) were obtained by the chemical exfoliation of graphite and thermal reduction. Then, they were characterized by electrical conductivity measurements, FESEM, XRD, AFM, and Raman spectroscopy. The composites’ morphology was evaluated by FESEM. The degree of swelling over a 48 h period and mass loss behavior in phosphate-buffered saline solution for up to 70 days were also studied. The hydrophilicity of the CS and CS/graphene nanocomposites was examined by water contact angle. The graphene materials showed small stacks (6-8 sheets) with low defect density and nanoscale thickness (1.3-5.9 nm). The dispersion of the graphene material in the CS matrix significantly decreased the degree of swelling (460%) but did not modify the hydrolytic degradation process and the hydrophilicity of membranes. |
| dirty | 0 |
| eu_rights_str_mv | openAccess |
| format | article |
| id | oasisbr_9992ac46473638659276d8189da867fd |
| identifier.url.fl_str_mv | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392019000700288 |
| inst_facet_str | urn:organizationAcronym:oasisbr{{{_:::_}}}IBICT |
| instacron_str | OASISBR |
| institution | IBICT |
| instname_str | IBICT |
| language | eng |
| network_acronym_str | oasisbr |
| network_name_str | Oasisbr |
| oai_identifier_str | oai:scielo:S1516-14392019000700288 |
| organization_str_mv | urn:organizationAcronym:oasisbr |
| person_str_mv | Maraschin,Thuany Garcia Correa,Roberto da Silva Rodrigues,Luiz Frederico Balzarettid,Naira Maria Malmonge,José Antonio Galland,Griselda Barrera Basso,Nara Regina de Souza |
| publishDate | 2019 |
| publisher.none.fl_str_mv | ABM, ABC, ABPol |
| repo_facet_str | urn:repositoryAcronym:oasisbr{{{_:::_}}}Oasisbr |
| reponame_str | Oasisbr |
| repository_id_str | urn:repositoryAcronym:oasisbr |
| service_str_mv | urn:repositoryAcronym:oasisbr |
| spelling | Chitosan Nanocomposites with Graphene-Based FillerMaraschin,Thuany GarciaCorrea,Roberto da SilvaRodrigues,Luiz FredericoBalzarettid,Naira MariaMalmonge,José AntonioGalland,Griselda BarreraBasso,Nara Regina de SouzaGraphene oxidereduced graphene oxide, chitosanbiodegradable polymeropen accesshttp://purl.org/coar/access_right/c_abf2http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392019000700288URLhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392019000700288URLHasVersion2019-01-01This study evaluates the properties of chitosan (CS) membranes modified with different percentages (0.5%, 3%, and 5% w/w) of a graphene-based material. Graphene oxide (GO) and reduced graphene oxide (RGO) were obtained by the chemical exfoliation of graphite and thermal reduction. Then, they were characterized by electrical conductivity measurements, FESEM, XRD, AFM, and Raman spectroscopy. The composites’ morphology was evaluated by FESEM. The degree of swelling over a 48 h period and mass loss behavior in phosphate-buffered saline solution for up to 70 days were also studied. The hydrophilicity of the CS and CS/graphene nanocomposites was examined by water contact angle. The graphene materials showed small stacks (6-8 sheets) with low defect density and nanoscale thickness (1.3-5.9 nm). The dispersion of the graphene material in the CS matrix significantly decreased the degree of swelling (460%) but did not modify the hydrolytic degradation process and the hydrophilicity of membranes.engtext/htmlABM, ABC, ABPolMaterials Research v.22 suppl.1 2019reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOLjournal articlehttp://purl.org/coar/resource_type/c_6501literatureVoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85 |
| spellingShingle | Chitosan Nanocomposites with Graphene-Based Filler Maraschin,Thuany Garcia Graphene oxide reduced graphene oxide, chitosan biodegradable polymer |
| status | SINGLETON |
| status_str | VoR |
| subject.fl_str_mv | Graphene oxide reduced graphene oxide, chitosan biodegradable polymer |
| title | Chitosan Nanocomposites with Graphene-Based Filler |
| title_full | Chitosan Nanocomposites with Graphene-Based Filler |
| title_fullStr | Chitosan Nanocomposites with Graphene-Based Filler |
| title_full_unstemmed | Chitosan Nanocomposites with Graphene-Based Filler |
| title_short | Chitosan Nanocomposites with Graphene-Based Filler |
| title_sort | Chitosan Nanocomposites with Graphene-Based Filler |
| topic | Graphene oxide reduced graphene oxide, chitosan biodegradable polymer |
| topic_facet | Graphene oxide reduced graphene oxide, chitosan biodegradable polymer |
| url | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392019000700288 |
| visible | 1 |
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