POLI-"-CAPROLACTONA COMO CARREADOR DE FÁRMACOS VIA MODELAGEM MOLECULAR
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Repositório Institucional Universidade Franciscana |
Texto Completo: | http://tede.universidadefranciscana.edu.br:8080/handle/UFN-BDTD/193 http://www.tede.universidadefranciscana.edu.br:8080/handle/UFN-BDTD/320 |
Resumo: | One of the widely used biodegradable polymers to control drug release in specific sites of action is the poly-ε-caprolactone (PCL). Considering exploring a potential application of this drug in the polymer, we studied its structural properties, electronic and energy the PCL interacting with the drugs indomethacin (IndOH) and its ethyl ester (IndEt), tazarotene (TZR) and chlorhexidine (CLX). The first stage of the study was performed by first-principles calculations based on density functional theory (DFT). After conformational analysis of the PCL, the interaction with the drugs was made using the conformation up-down-curved polymer, and it has been demonstrated in interactions with drugs IndOH, IndEt and TZR in both the concave portion of the polymer chain (PCL-IN) and the convex part (PCL-OUT) is that these interactions are essentially physical, and the value of energy connection occurs when high hydrogen bonds in the system, keeping also in a physical regimen when you re adding more polymer chains. As for interactions with CLX settings with a polymer chain (PCL-IN) show higher binding energies when compared to other systems, and interactions on the convex (PCL-OUT) there is a decrease in the binding energies in comparison with the PCL-IN settings, but in configurations with two polymer chains the binding energies are still high. With these results demonstrate that the systems obtained with IndOH, IndEt and are promising to TZR entrainment, and the CLX system tends not to be suitable for this purpose. In the second stage of this work was to study the structure and dynamics of solvation for configurations with four polymers with IndOH and IndEt. Through the radial distribution function (RDF) can observe the hydrophobic character of PCL and the folding of polymer chains in aqueous solution, with a little organization of water molecules and with greater organization of the polymer around the drug. And through the diffusion coefficient showed that the IndOH diffuses faster into the middle of the IndEt. These results show which configurations are more stable for the carrying of drugs and demonstrate agreement with the experimental results, showing the accuracy of the methodologies used. |
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Silva, Ivana Zanella daCPF:94305382091http://lattes.cnpq.br/7107334055877180Raffin, Renata PlatcheckCPF:76201643087http://lattes.cnpq.br/9315943331569148CPF:93773285272http://lattes.cnpq.br/6564709978728132Dias, Igor Wanderley Reis2018-06-27T18:56:22Z2011-08-10DIAS, Igor Wanderley Reis. POLI-"-CAPROLACTONA COMO CARREADOR DE FÁRMACOS VIA MODELAGEM MOLECULAR. 2011. 129 f. Dissertação (Mestrado em Biociências e Nanomateriais) - Universidade Franciscana, Santa Maria, 2011.http://tede.universidadefranciscana.edu.br:8080/handle/UFN-BDTD/193http://www.tede.universidadefranciscana.edu.br:8080/handle/UFN-BDTD/320One of the widely used biodegradable polymers to control drug release in specific sites of action is the poly-ε-caprolactone (PCL). Considering exploring a potential application of this drug in the polymer, we studied its structural properties, electronic and energy the PCL interacting with the drugs indomethacin (IndOH) and its ethyl ester (IndEt), tazarotene (TZR) and chlorhexidine (CLX). The first stage of the study was performed by first-principles calculations based on density functional theory (DFT). After conformational analysis of the PCL, the interaction with the drugs was made using the conformation up-down-curved polymer, and it has been demonstrated in interactions with drugs IndOH, IndEt and TZR in both the concave portion of the polymer chain (PCL-IN) and the convex part (PCL-OUT) is that these interactions are essentially physical, and the value of energy connection occurs when high hydrogen bonds in the system, keeping also in a physical regimen when you re adding more polymer chains. As for interactions with CLX settings with a polymer chain (PCL-IN) show higher binding energies when compared to other systems, and interactions on the convex (PCL-OUT) there is a decrease in the binding energies in comparison with the PCL-IN settings, but in configurations with two polymer chains the binding energies are still high. With these results demonstrate that the systems obtained with IndOH, IndEt and are promising to TZR entrainment, and the CLX system tends not to be suitable for this purpose. In the second stage of this work was to study the structure and dynamics of solvation for configurations with four polymers with IndOH and IndEt. Through the radial distribution function (RDF) can observe the hydrophobic character of PCL and the folding of polymer chains in aqueous solution, with a little organization of water molecules and with greater organization of the polymer around the drug. And through the diffusion coefficient showed that the IndOH diffuses faster into the middle of the IndEt. These results show which configurations are more stable for the carrying of drugs and demonstrate agreement with the experimental results, showing the accuracy of the methodologies used.Um dos polímeros biodegradável bastante utilizado para o controle da liberação de fármacos em sítios de ação específicos é a poli-ε-caprolactona (PCL). Considerando explorar uma potencial aplicação desse polímero na área farmacológica, estudou-se as propriedades estruturais, energéticas e eletrônicas da PCL interagindo com os fármacos indometacina (IndOH) e seu éster etílico (IndEt), o tazaroteno (TZR) e a clorexidina (CLX). A primeira etapa do estudo foi realizada por meio de cálculos de primeiros princípios baseados na teoria do funcional da densidade (DFT). Após a análise conformacional da PCL, a interação com os fármacos foi feita utilizando a conformação up-down-curvada do polímero, e o que foi demonstrado nas interações com os fárrmacos IndOH, IndEt e TZR, tanto na parte côncava da cadeia polimérica (PCL-IN) quanto na parte convexa (PCL-OUT) é que essas interações são essencialmente físicas, tendo o valor da energia de ligação elevado quando ocorre ligações de hidrogênio no sistema, mantendo-se também em um regime físico quando se tem a inclusão de mais cadeias poliméricas. Já para as interações com CLX as configurações com uma cadeia polimérica (PCL-IN) mostram energias de ligação elevadas, quando comparada aos outros sistemas, e para as interações na parte convexa (PCL-OUT) há uma diminuição nas energias de ligação em comparação com as configurações PCL-IN, porém nas configurações com duas cadeias poliméricas as energias de ligação ainda continuam elevadas. Com esses resultados demonstra-se que os sistemas obtidos com IndOH, IndEt e TZR são promissores ao carreamento, e que o sistema com CLX tende a não ser propício para este fim. Na segunda etapa do trabalho houve o estudo da estrutura e dinâmica de solvatação para as configurações com quatro polímeros com a IndOH e o IndEt. Através da função de distribuição radial (RDF) pode-se observar o caráter hidrofóbico da PCL e o enovelamento das cadeias poliméricas em solução aquosa, com uma pouca organização das moléculas de água e com uma maior organização do polímero em torno dos fármacos. E através do coeficiente de difusão demonstrou-se que a IndOH difunde mais rápido para o meio do que o IndEt. Estes resultados mostram quais configurações são mais estáveis para o carreamento de fármacos e demonstram concordância com os resultados experimentais, mostrando a acurácia das metodologias empregadas.Made available in DSpace on 2018-06-27T18:56:22Z (GMT). No. of bitstreams: 3 Igor Wanderley Reis Dias.pdf: 6016779 bytes, checksum: 86bcdcfbfacb63d4d4a518ace6997161 (MD5) Igor Wanderley Reis Dias.pdf.txt: 208576 bytes, checksum: cd35138cd2ea03d785b3e9c7e488c5c9 (MD5) Igor Wanderley Reis Dias.pdf.jpg: 3431 bytes, checksum: 2d647e86ee0171ea4dfc34ba86f497fd (MD5) Previous issue date: 2011-08-10Coordenação de Aperfeiçoamento de Pessoal de Nível Superiorapplication/pdfhttp://tede.universidadefranciscana.edu.br:8080/retrieve/420/Igor%20Wanderley%20Reis%20Dias.pdf.jpgporUniversidade FranciscanaMestrado Acadêmico em NanociênciasUFNBRBiociências e Nanomateriaispoli-ε-caprolactonafármacosDFTsolvataçãodinâmica molecularpoly-ε-caprolactonedrugsDFTsolvationmolecular dynamicsCNPQ::ENGENHARIASPOLI-"-CAPROLACTONA COMO CARREADOR DE FÁRMACOS VIA MODELAGEM MOLECULARinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional Universidade Franciscanainstname:Universidade Franciscana (UFN)instacron:UFNORIGINALIgor Wanderley Reis Dias.pdfapplication/pdf6016779http://tede.universidadefranciscana.edu.br:8080/bitstream/UFN-BDTD/320/1/Igor+Wanderley+Reis+Dias.pdf86bcdcfbfacb63d4d4a518ace6997161MD51TEXTIgor Wanderley Reis Dias.pdf.txttext/plain208576http://tede.universidadefranciscana.edu.br:8080/bitstream/UFN-BDTD/320/2/Igor+Wanderley+Reis+Dias.pdf.txtcd35138cd2ea03d785b3e9c7e488c5c9MD52THUMBNAILIgor Wanderley Reis Dias.pdf.jpgimage/jpeg3431http://tede.universidadefranciscana.edu.br:8080/bitstream/UFN-BDTD/320/3/Igor+Wanderley+Reis+Dias.pdf.jpg2d647e86ee0171ea4dfc34ba86f497fdMD53UFN-BDTD/3202018-06-27 15:56:22.494oai:tede.universidadefranciscana.edu.br:UFN-BDTD/320Repositório de Publicaçõeshttp://www.tede.universidadefranciscana.edu.br:8080/http://www.tede.universidadefranciscana.edu.br:8080/oai/requestopendoar:2018-06-27T18:56:22Repositório Institucional Universidade Franciscana - Universidade Franciscana (UFN)false |
dc.title.por.fl_str_mv |
POLI-"-CAPROLACTONA COMO CARREADOR DE FÁRMACOS VIA MODELAGEM MOLECULAR |
title |
POLI-"-CAPROLACTONA COMO CARREADOR DE FÁRMACOS VIA MODELAGEM MOLECULAR |
spellingShingle |
POLI-"-CAPROLACTONA COMO CARREADOR DE FÁRMACOS VIA MODELAGEM MOLECULAR Dias, Igor Wanderley Reis poli-ε -caprolactona fármacos DFT solvatação dinâmica molecular poly-ε -caprolactone drugs DFT solvation molecular dynamics CNPQ::ENGENHARIAS |
title_short |
POLI-"-CAPROLACTONA COMO CARREADOR DE FÁRMACOS VIA MODELAGEM MOLECULAR |
title_full |
POLI-"-CAPROLACTONA COMO CARREADOR DE FÁRMACOS VIA MODELAGEM MOLECULAR |
title_fullStr |
POLI-"-CAPROLACTONA COMO CARREADOR DE FÁRMACOS VIA MODELAGEM MOLECULAR |
title_full_unstemmed |
POLI-"-CAPROLACTONA COMO CARREADOR DE FÁRMACOS VIA MODELAGEM MOLECULAR |
title_sort |
POLI-"-CAPROLACTONA COMO CARREADOR DE FÁRMACOS VIA MODELAGEM MOLECULAR |
author |
Dias, Igor Wanderley Reis |
author_facet |
Dias, Igor Wanderley Reis |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Silva, Ivana Zanella da |
dc.contributor.advisor1ID.fl_str_mv |
CPF:94305382091 |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/7107334055877180 |
dc.contributor.advisor-co1.fl_str_mv |
Raffin, Renata Platcheck |
dc.contributor.advisor-co1ID.fl_str_mv |
CPF:76201643087 |
dc.contributor.advisor-co1Lattes.fl_str_mv |
http://lattes.cnpq.br/9315943331569148 |
dc.contributor.authorID.fl_str_mv |
CPF:93773285272 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/6564709978728132 |
dc.contributor.author.fl_str_mv |
Dias, Igor Wanderley Reis |
contributor_str_mv |
Silva, Ivana Zanella da Raffin, Renata Platcheck |
dc.subject.por.fl_str_mv |
poli-ε -caprolactona fármacos DFT solvatação dinâmica molecular |
topic |
poli-ε -caprolactona fármacos DFT solvatação dinâmica molecular poly-ε -caprolactone drugs DFT solvation molecular dynamics CNPQ::ENGENHARIAS |
dc.subject.eng.fl_str_mv |
poly-ε -caprolactone drugs DFT solvation molecular dynamics |
dc.subject.cnpq.fl_str_mv |
CNPQ::ENGENHARIAS |
description |
One of the widely used biodegradable polymers to control drug release in specific sites of action is the poly-ε-caprolactone (PCL). Considering exploring a potential application of this drug in the polymer, we studied its structural properties, electronic and energy the PCL interacting with the drugs indomethacin (IndOH) and its ethyl ester (IndEt), tazarotene (TZR) and chlorhexidine (CLX). The first stage of the study was performed by first-principles calculations based on density functional theory (DFT). After conformational analysis of the PCL, the interaction with the drugs was made using the conformation up-down-curved polymer, and it has been demonstrated in interactions with drugs IndOH, IndEt and TZR in both the concave portion of the polymer chain (PCL-IN) and the convex part (PCL-OUT) is that these interactions are essentially physical, and the value of energy connection occurs when high hydrogen bonds in the system, keeping also in a physical regimen when you re adding more polymer chains. As for interactions with CLX settings with a polymer chain (PCL-IN) show higher binding energies when compared to other systems, and interactions on the convex (PCL-OUT) there is a decrease in the binding energies in comparison with the PCL-IN settings, but in configurations with two polymer chains the binding energies are still high. With these results demonstrate that the systems obtained with IndOH, IndEt and are promising to TZR entrainment, and the CLX system tends not to be suitable for this purpose. In the second stage of this work was to study the structure and dynamics of solvation for configurations with four polymers with IndOH and IndEt. Through the radial distribution function (RDF) can observe the hydrophobic character of PCL and the folding of polymer chains in aqueous solution, with a little organization of water molecules and with greater organization of the polymer around the drug. And through the diffusion coefficient showed that the IndOH diffuses faster into the middle of the IndEt. These results show which configurations are more stable for the carrying of drugs and demonstrate agreement with the experimental results, showing the accuracy of the methodologies used. |
publishDate |
2011 |
dc.date.issued.fl_str_mv |
2011-08-10 |
dc.date.accessioned.fl_str_mv |
2018-06-27T18:56:22Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
DIAS, Igor Wanderley Reis. POLI-"-CAPROLACTONA COMO CARREADOR DE FÁRMACOS VIA MODELAGEM MOLECULAR. 2011. 129 f. Dissertação (Mestrado em Biociências e Nanomateriais) - Universidade Franciscana, Santa Maria, 2011. |
dc.identifier.uri.fl_str_mv |
http://tede.universidadefranciscana.edu.br:8080/handle/UFN-BDTD/193 http://www.tede.universidadefranciscana.edu.br:8080/handle/UFN-BDTD/320 |
identifier_str_mv |
DIAS, Igor Wanderley Reis. POLI-"-CAPROLACTONA COMO CARREADOR DE FÁRMACOS VIA MODELAGEM MOLECULAR. 2011. 129 f. Dissertação (Mestrado em Biociências e Nanomateriais) - Universidade Franciscana, Santa Maria, 2011. |
url |
http://tede.universidadefranciscana.edu.br:8080/handle/UFN-BDTD/193 http://www.tede.universidadefranciscana.edu.br:8080/handle/UFN-BDTD/320 |
dc.language.iso.fl_str_mv |
por |
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por |
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openAccess |
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Universidade Franciscana |
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Mestrado Acadêmico em Nanociências |
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UFN |
dc.publisher.country.fl_str_mv |
BR |
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Biociências e Nanomateriais |
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Universidade Franciscana |
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reponame:Repositório Institucional Universidade Franciscana instname:Universidade Franciscana (UFN) instacron:UFN |
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Universidade Franciscana (UFN) |
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UFN |
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UFN |
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Repositório Institucional Universidade Franciscana |
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Repositório Institucional Universidade Franciscana |
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