Thermodynamic study of colorimetric transitions in polydiacetylene vesicles induced by the solvent effect
Autor(a) principal: | |
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Data de Publicação: | 2010 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | LOCUS Repositório Institucional da UFV |
Texto Completo: | http://dx.doi.org/10.1021/jp105604t http://www.locus.ufv.br/handle/123456789/19107 |
Resumo: | We report the synthesis of 10,12-pentacosadyinoic acid (PCDA) and PCDA + cholesterol (CHO) + sphingomyelin (SPH) vesicles dispersed in water and the determination of their colorimetric response induced by small amount of organic solvents. In the absence of solvent, PCDA and PCDA/CHO/SPH vesicles showed an intense blue color. The addition of CHCl 3 , CH 2 Cl 2 , and CCl 4 caused a colorimetric transition (CT) in both structures with the following efficiency: CHCl 3 > CH 2 Cl 2 = CCl 4 . However, CH 3 OH did not cause a blueto-red transition. By microcalorimetric technique we also determined, for the first time, the enthalpy change associated with the CT process and the energy of interaction between solvent molecules and vesicle self- assembly. We observed that the chloride solvents induced a colorimetric transition, but the thermodynamic mechanism was different for each of them. CT induced by CHCl 3 was enthalpically driven, while that caused by CH 2 Cl 2 or CCl 4 was entropically driven. |
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Pires, Ana Clarissa S.Soares, Nilda de Fátima F.Silva, Luis Henrique M. daSilva, Maria C. Hespanhol daMageste, Aparecida B.Soares, Rêmili F.Teixeira, Álvaro V. N. C.Andrade, Nélio J.2018-04-25T10:59:55Z2018-04-25T10:59:55Z2010-09-3019327455http://dx.doi.org/10.1021/jp105604thttp://www.locus.ufv.br/handle/123456789/19107We report the synthesis of 10,12-pentacosadyinoic acid (PCDA) and PCDA + cholesterol (CHO) + sphingomyelin (SPH) vesicles dispersed in water and the determination of their colorimetric response induced by small amount of organic solvents. In the absence of solvent, PCDA and PCDA/CHO/SPH vesicles showed an intense blue color. The addition of CHCl 3 , CH 2 Cl 2 , and CCl 4 caused a colorimetric transition (CT) in both structures with the following efficiency: CHCl 3 > CH 2 Cl 2 = CCl 4 . However, CH 3 OH did not cause a blueto-red transition. By microcalorimetric technique we also determined, for the first time, the enthalpy change associated with the CT process and the energy of interaction between solvent molecules and vesicle self- assembly. We observed that the chloride solvents induced a colorimetric transition, but the thermodynamic mechanism was different for each of them. CT induced by CHCl 3 was enthalpically driven, while that caused by CH 2 Cl 2 or CCl 4 was entropically driven.engJournal of Physical Chemistryv. 114, n. 42, p. 13365-13371, sep. 2010Copyright Clearance Center, Inc.info:eu-repo/semantics/openAccessThermodynamic studyPolydiacetyleneSolventThermodynamic study of colorimetric transitions in polydiacetylene vesicles induced by the solvent effectinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfreponame:LOCUS Repositório Institucional da UFVinstname:Universidade Federal de Viçosa (UFV)instacron:UFVORIGINALartigo.pdfartigo.pdftexto completoapplication/pdf371386https://locus.ufv.br//bitstream/123456789/19107/1/artigo.pdf37ad4472af4ec19e36e9fd087de03bdfMD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81748https://locus.ufv.br//bitstream/123456789/19107/2/license.txt8a4605be74aa9ea9d79846c1fba20a33MD52THUMBNAILartigo.pdf.jpgartigo.pdf.jpgIM Thumbnailimage/jpeg4621https://locus.ufv.br//bitstream/123456789/19107/3/artigo.pdf.jpgcea63183e69283cdede7c53e2b393e83MD53123456789/191072018-04-25 23:00:33.535oai:locus.ufv.br:123456789/19107Tk9URTogUExBQ0UgWU9VUiBPV04gTElDRU5TRSBIRVJFClRoaXMgc2FtcGxlIGxpY2Vuc2UgaXMgcHJvdmlkZWQgZm9yIGluZm9ybWF0aW9uYWwgcHVycG9zZXMgb25seS4KCk5PTi1FWENMVVNJVkUgRElTVFJJQlVUSU9OIExJQ0VOU0UKCkJ5IHNpZ25pbmcgYW5kIHN1Ym1pdHRpbmcgdGhpcyBsaWNlbnNlLCB5b3UgKHRoZSBhdXRob3Iocykgb3IgY29weXJpZ2h0Cm93bmVyKSBncmFudHMgdG8gRFNwYWNlIFVuaXZlcnNpdHkgKERTVSkgdGhlIG5vbi1leGNsdXNpdmUgcmlnaHQgdG8gcmVwcm9kdWNlLAp0cmFuc2xhdGUgKGFzIGRlZmluZWQgYmVsb3cpLCBhbmQvb3IgZGlzdHJpYnV0ZSB5b3VyIHN1Ym1pc3Npb24gKGluY2x1ZGluZwp0aGUgYWJzdHJhY3QpIHdvcmxkd2lkZSBpbiBwcmludCBhbmQgZWxlY3Ryb25pYyBmb3JtYXQgYW5kIGluIGFueSBtZWRpdW0sCmluY2x1ZGluZyBidXQgbm90IGxpbWl0ZWQgdG8gYXVkaW8gb3IgdmlkZW8uCgpZb3UgYWdyZWUgdGhhdCBEU1UgbWF5LCB3aXRob3V0IGNoYW5naW5nIHRoZSBjb250ZW50LCB0cmFuc2xhdGUgdGhlCnN1Ym1pc3Npb24gdG8gYW55IG1lZGl1bSBvciBmb3JtYXQgZm9yIHRoZSBwdXJwb3NlIG9mIHByZXNlcnZhdGlvbi4KCllvdSBhbHNvIGFncmVlIHRoYXQgRFNVIG1heSBrZWVwIG1vcmUgdGhhbiBvbmUgY29weSBvZiB0aGlzIHN1Ym1pc3Npb24gZm9yCnB1cnBvc2VzIG9mIHNlY3VyaXR5LCBiYWNrLXVwIGFuZCBwcmVzZXJ2YXRpb24uCgpZb3UgcmVwcmVzZW50IHRoYXQgdGhlIHN1Ym1pc3Npb24gaXMgeW91ciBvcmlnaW5hbCB3b3JrLCBhbmQgdGhhdCB5b3UgaGF2ZQp0aGUgcmlnaHQgdG8gZ3JhbnQgdGhlIHJpZ2h0cyBjb250YWluZWQgaW4gdGhpcyBsaWNlbnNlLiBZb3UgYWxzbyByZXByZXNlbnQKdGhhdCB5b3VyIHN1Ym1pc3Npb24gZG9lcyBub3QsIHRvIHRoZSBiZXN0IG9mIHlvdXIga25vd2xlZGdlLCBpbmZyaW5nZSB1cG9uCmFueW9uZSdzIGNvcHlyaWdodC4KCklmIHRoZSBzdWJtaXNzaW9uIGNvbnRhaW5zIG1hdGVyaWFsIGZvciB3aGljaCB5b3UgZG8gbm90IGhvbGQgY29weXJpZ2h0LAp5b3UgcmVwcmVzZW50IHRoYXQgeW91IGhhdmUgb2J0YWluZWQgdGhlIHVucmVzdHJpY3RlZCBwZXJtaXNzaW9uIG9mIHRoZQpjb3B5cmlnaHQgb3duZXIgdG8gZ3JhbnQgRFNVIHRoZSByaWdodHMgcmVxdWlyZWQgYnkgdGhpcyBsaWNlbnNlLCBhbmQgdGhhdApzdWNoIHRoaXJkLXBhcnR5IG93bmVkIG1hdGVyaWFsIGlzIGNsZWFybHkgaWRlbnRpZmllZCBhbmQgYWNrbm93bGVkZ2VkCndpdGhpbiB0aGUgdGV4dCBvciBjb250ZW50IG9mIHRoZSBzdWJtaXNzaW9uLgoKSUYgVEhFIFNVQk1JU1NJT04gSVMgQkFTRUQgVVBPTiBXT1JLIFRIQVQgSEFTIEJFRU4gU1BPTlNPUkVEIE9SIFNVUFBPUlRFRApCWSBBTiBBR0VOQ1kgT1IgT1JHQU5JWkFUSU9OIE9USEVSIFRIQU4gRFNVLCBZT1UgUkVQUkVTRU5UIFRIQVQgWU9VIEhBVkUKRlVMRklMTEVEIEFOWSBSSUdIVCBPRiBSRVZJRVcgT1IgT1RIRVIgT0JMSUdBVElPTlMgUkVRVUlSRUQgQlkgU1VDSApDT05UUkFDVCBPUiBBR1JFRU1FTlQuCgpEU1Ugd2lsbCBjbGVhcmx5IGlkZW50aWZ5IHlvdXIgbmFtZShzKSBhcyB0aGUgYXV0aG9yKHMpIG9yIG93bmVyKHMpIG9mIHRoZQpzdWJtaXNzaW9uLCBhbmQgd2lsbCBub3QgbWFrZSBhbnkgYWx0ZXJhdGlvbiwgb3RoZXIgdGhhbiBhcyBhbGxvd2VkIGJ5IHRoaXMKbGljZW5zZSwgdG8geW91ciBzdWJtaXNzaW9uLgo=Repositório InstitucionalPUBhttps://www.locus.ufv.br/oai/requestfabiojreis@ufv.bropendoar:21452018-04-26T02:00:33LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV)false |
dc.title.en.fl_str_mv |
Thermodynamic study of colorimetric transitions in polydiacetylene vesicles induced by the solvent effect |
title |
Thermodynamic study of colorimetric transitions in polydiacetylene vesicles induced by the solvent effect |
spellingShingle |
Thermodynamic study of colorimetric transitions in polydiacetylene vesicles induced by the solvent effect Pires, Ana Clarissa S. Thermodynamic study Polydiacetylene Solvent |
title_short |
Thermodynamic study of colorimetric transitions in polydiacetylene vesicles induced by the solvent effect |
title_full |
Thermodynamic study of colorimetric transitions in polydiacetylene vesicles induced by the solvent effect |
title_fullStr |
Thermodynamic study of colorimetric transitions in polydiacetylene vesicles induced by the solvent effect |
title_full_unstemmed |
Thermodynamic study of colorimetric transitions in polydiacetylene vesicles induced by the solvent effect |
title_sort |
Thermodynamic study of colorimetric transitions in polydiacetylene vesicles induced by the solvent effect |
author |
Pires, Ana Clarissa S. |
author_facet |
Pires, Ana Clarissa S. Soares, Nilda de Fátima F. Silva, Luis Henrique M. da Silva, Maria C. Hespanhol da Mageste, Aparecida B. Soares, Rêmili F. Teixeira, Álvaro V. N. C. Andrade, Nélio J. |
author_role |
author |
author2 |
Soares, Nilda de Fátima F. Silva, Luis Henrique M. da Silva, Maria C. Hespanhol da Mageste, Aparecida B. Soares, Rêmili F. Teixeira, Álvaro V. N. C. Andrade, Nélio J. |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Pires, Ana Clarissa S. Soares, Nilda de Fátima F. Silva, Luis Henrique M. da Silva, Maria C. Hespanhol da Mageste, Aparecida B. Soares, Rêmili F. Teixeira, Álvaro V. N. C. Andrade, Nélio J. |
dc.subject.pt-BR.fl_str_mv |
Thermodynamic study Polydiacetylene Solvent |
topic |
Thermodynamic study Polydiacetylene Solvent |
description |
We report the synthesis of 10,12-pentacosadyinoic acid (PCDA) and PCDA + cholesterol (CHO) + sphingomyelin (SPH) vesicles dispersed in water and the determination of their colorimetric response induced by small amount of organic solvents. In the absence of solvent, PCDA and PCDA/CHO/SPH vesicles showed an intense blue color. The addition of CHCl 3 , CH 2 Cl 2 , and CCl 4 caused a colorimetric transition (CT) in both structures with the following efficiency: CHCl 3 > CH 2 Cl 2 = CCl 4 . However, CH 3 OH did not cause a blueto-red transition. By microcalorimetric technique we also determined, for the first time, the enthalpy change associated with the CT process and the energy of interaction between solvent molecules and vesicle self- assembly. We observed that the chloride solvents induced a colorimetric transition, but the thermodynamic mechanism was different for each of them. CT induced by CHCl 3 was enthalpically driven, while that caused by CH 2 Cl 2 or CCl 4 was entropically driven. |
publishDate |
2010 |
dc.date.issued.fl_str_mv |
2010-09-30 |
dc.date.accessioned.fl_str_mv |
2018-04-25T10:59:55Z |
dc.date.available.fl_str_mv |
2018-04-25T10:59:55Z |
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://dx.doi.org/10.1021/jp105604t http://www.locus.ufv.br/handle/123456789/19107 |
dc.identifier.issn.none.fl_str_mv |
19327455 |
identifier_str_mv |
19327455 |
url |
http://dx.doi.org/10.1021/jp105604t http://www.locus.ufv.br/handle/123456789/19107 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartofseries.pt-BR.fl_str_mv |
v. 114, n. 42, p. 13365-13371, sep. 2010 |
dc.rights.driver.fl_str_mv |
Copyright Clearance Center, Inc. info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright Clearance Center, Inc. |
eu_rights_str_mv |
openAccess |
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dc.publisher.none.fl_str_mv |
Journal of Physical Chemistry |
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Journal of Physical Chemistry |
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