Quaternized cashew gum: An anti-staphylococcal and biocompatible cationic polymer for biotechnological applications
Autor(a) principal: | |
---|---|
Data de Publicação: | 2017 |
Outros Autores: | , , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.22/13858 |
Resumo: | Chemical modifications to cashew gum (CG) structure have been previously reported to obtain new physicochemical characteristics, however until now there were no reports of modifications by introduction of new functional groups to add cationic character. This study presents a quaternization route for CG using a quaternary ammonium reagent. The chemical features of the quaternized cashew gum derivatives (QCG) were analyzed by: FTIR, elemental analysis, degree of substitution, Zeta potential, 1H NMR and 1H-13C correlation (HSQC). QCG were evaluated for their anti-staphylococcal activity by determining minimum inhibitory and bactericidal concentrations against pathogenic Staphylococcus spp. and by imaging using atomic force microscopy. Moreover, the mammalian cell biocompatibility were also assessed through hemolytic and cell toxicity assays. QCG presented promising antimicrobial activity against methicillin-resistant S. aureus and biocompatibility on tested cells. These results show that QCG could be a promising tool in the development of biomaterials with an anti-septic action. |
id |
RCAP_8e595779f8b293c958857c4f1df5344a |
---|---|
oai_identifier_str |
oai:recipp.ipp.pt:10400.22/13858 |
network_acronym_str |
RCAP |
network_name_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository_id_str |
7160 |
spelling |
Quaternized cashew gum: An anti-staphylococcal and biocompatible cationic polymer for biotechnological applicationsAnacardiumAnimalsAnti-Bacterial AgentsBiocompatible MaterialsCell LineErythrocytesHemolysisHumansMethicillin-Resistant Staphylococcus aureusMiceMicrobial Sensitivity TestsPlant GumsPolymersStaphylococcusChemical modifications to cashew gum (CG) structure have been previously reported to obtain new physicochemical characteristics, however until now there were no reports of modifications by introduction of new functional groups to add cationic character. This study presents a quaternization route for CG using a quaternary ammonium reagent. The chemical features of the quaternized cashew gum derivatives (QCG) were analyzed by: FTIR, elemental analysis, degree of substitution, Zeta potential, 1H NMR and 1H-13C correlation (HSQC). QCG were evaluated for their anti-staphylococcal activity by determining minimum inhibitory and bactericidal concentrations against pathogenic Staphylococcus spp. and by imaging using atomic force microscopy. Moreover, the mammalian cell biocompatibility were also assessed through hemolytic and cell toxicity assays. QCG presented promising antimicrobial activity against methicillin-resistant S. aureus and biocompatibility on tested cells. These results show that QCG could be a promising tool in the development of biomaterials with an anti-septic action.Repositório Científico do Instituto Politécnico do PortoQuelemes, Patrick V.Araújo, Alyne R. dePlácido, AlexandraDelerue-Matos, CristinaMaciel, Jeanny S.Bessa, Lucinda J.Ombredane, Alicia S.Joanitti, Graziella A.Soares, Maria José dos S.Eaton, PeterSilva, Durcilene A. daLeite, José Roberto S.A.2019-06-06T09:32:07Z20172017-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.22/13858eng0144-861710.1016/j.carbpol.2016.10.026info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-03-13T12:56:06Zoai:recipp.ipp.pt:10400.22/13858Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T17:33:42.489581Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Quaternized cashew gum: An anti-staphylococcal and biocompatible cationic polymer for biotechnological applications |
title |
Quaternized cashew gum: An anti-staphylococcal and biocompatible cationic polymer for biotechnological applications |
spellingShingle |
Quaternized cashew gum: An anti-staphylococcal and biocompatible cationic polymer for biotechnological applications Quelemes, Patrick V. Anacardium Animals Anti-Bacterial Agents Biocompatible Materials Cell Line Erythrocytes Hemolysis Humans Methicillin-Resistant Staphylococcus aureus Mice Microbial Sensitivity Tests Plant Gums Polymers Staphylococcus |
title_short |
Quaternized cashew gum: An anti-staphylococcal and biocompatible cationic polymer for biotechnological applications |
title_full |
Quaternized cashew gum: An anti-staphylococcal and biocompatible cationic polymer for biotechnological applications |
title_fullStr |
Quaternized cashew gum: An anti-staphylococcal and biocompatible cationic polymer for biotechnological applications |
title_full_unstemmed |
Quaternized cashew gum: An anti-staphylococcal and biocompatible cationic polymer for biotechnological applications |
title_sort |
Quaternized cashew gum: An anti-staphylococcal and biocompatible cationic polymer for biotechnological applications |
author |
Quelemes, Patrick V. |
author_facet |
Quelemes, Patrick V. Araújo, Alyne R. de Plácido, Alexandra Delerue-Matos, Cristina Maciel, Jeanny S. Bessa, Lucinda J. Ombredane, Alicia S. Joanitti, Graziella A. Soares, Maria José dos S. Eaton, Peter Silva, Durcilene A. da Leite, José Roberto S.A. |
author_role |
author |
author2 |
Araújo, Alyne R. de Plácido, Alexandra Delerue-Matos, Cristina Maciel, Jeanny S. Bessa, Lucinda J. Ombredane, Alicia S. Joanitti, Graziella A. Soares, Maria José dos S. Eaton, Peter Silva, Durcilene A. da Leite, José Roberto S.A. |
author2_role |
author author author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Repositório Científico do Instituto Politécnico do Porto |
dc.contributor.author.fl_str_mv |
Quelemes, Patrick V. Araújo, Alyne R. de Plácido, Alexandra Delerue-Matos, Cristina Maciel, Jeanny S. Bessa, Lucinda J. Ombredane, Alicia S. Joanitti, Graziella A. Soares, Maria José dos S. Eaton, Peter Silva, Durcilene A. da Leite, José Roberto S.A. |
dc.subject.por.fl_str_mv |
Anacardium Animals Anti-Bacterial Agents Biocompatible Materials Cell Line Erythrocytes Hemolysis Humans Methicillin-Resistant Staphylococcus aureus Mice Microbial Sensitivity Tests Plant Gums Polymers Staphylococcus |
topic |
Anacardium Animals Anti-Bacterial Agents Biocompatible Materials Cell Line Erythrocytes Hemolysis Humans Methicillin-Resistant Staphylococcus aureus Mice Microbial Sensitivity Tests Plant Gums Polymers Staphylococcus |
description |
Chemical modifications to cashew gum (CG) structure have been previously reported to obtain new physicochemical characteristics, however until now there were no reports of modifications by introduction of new functional groups to add cationic character. This study presents a quaternization route for CG using a quaternary ammonium reagent. The chemical features of the quaternized cashew gum derivatives (QCG) were analyzed by: FTIR, elemental analysis, degree of substitution, Zeta potential, 1H NMR and 1H-13C correlation (HSQC). QCG were evaluated for their anti-staphylococcal activity by determining minimum inhibitory and bactericidal concentrations against pathogenic Staphylococcus spp. and by imaging using atomic force microscopy. Moreover, the mammalian cell biocompatibility were also assessed through hemolytic and cell toxicity assays. QCG presented promising antimicrobial activity against methicillin-resistant S. aureus and biocompatibility on tested cells. These results show that QCG could be a promising tool in the development of biomaterials with an anti-septic action. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017 2017-01-01T00:00:00Z 2019-06-06T09:32:07Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10400.22/13858 |
url |
http://hdl.handle.net/10400.22/13858 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0144-8617 10.1016/j.carbpol.2016.10.026 |
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.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
|
_version_ |
1799131429432459264 |