Thermodynamic Study of Colorimetric Transitions in Polydiacetylene Vesicles Induced by the Solvent Effect

Pires, Ana Clarissa dos Santos; Soares, Nilda de Fátima Ferreira; Silva, Luís Henrique Mendes da; Silva, Maria do Carmo Hespanhol da; Mageste, Aparecida Barbosa; Soares, Rêmili F; Teixeira, Álvaro Vianna Novaes de Carvalho; Andrade, Nélio José de

doi:10.1021/jp105604t

Cited by 45 publications

(37 citation statements)

References 41 publications

(74 reference statements)

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“…As we demonstrated, the enthalpy changes associated with the PDA colorimetric transition are a result of conformational changes associated with the rotation of the functional group around the carbon-carbon bond present in polydiacetylene chains [12,22].…”

Section: Introductionmentioning

confidence: 79%

“…The PDA and PDA/CHO/SPH vesicles were prepared as described elsewhere [12,[23][24][25]. Briefly, to obtain PDA vesicles, the PDA monomer (10,12-pentacosadiynoic acid, 97% w/w, Sigma ® ) was dissolved in CHCl 3 (98% w/w, Sigma ® ), which was removed by a stream of N 2 gas to promote the formation of a PDA film on the glass surface.…”

Section: Vesicle Preparationmentioning

confidence: 99%

“…These results show that there is a higher hydrophobic contribution for the PDA-CTAB interaction than for PDA/ CHO/SPH interaction. The entropic contribution could be ascribed to two processes: i) the releasing of water molecules solvating the surfactant molecules and the hydrophilic surface of the vesicles, increasing the translational entropy of the system and ii) the conformational change associated with PDA molecules, which transform from a linear chain to a coil structure, increasing the conformational entropy of the vesicle [12], and/or twist out of planarity during the colorimetric transition, but still largely linear.…”

Section: ……………(4)mentioning

confidence: 99%

“…As is well known, polydiacetylene vesicle building by self-organized diacetylene monomers and then polymerized by UV light could be used as nanosensors due to its molecules undergo spectrophotometric transitions in J ournal of Food Chemistry & Nanotechnology response to different stimuli, such as temperature change [4][5][6], pH [5,7,8], mechanical stress [9,10], solvents [5,11,12], and interaction with other molecules, such as surfactants [13][14][15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

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Polydiacetylene Vesicles for Detecting Surfactants: Understanding the Driven Forces of Polydiacetylene-Surfactant Interaction

Pires¹,

Soares²,

Silva³

et al. 2016

J Food Chem Nanotechnol

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Surfactants are widely used by food industry thus its discharge is an environmental concern; and development of Polydiacetylene (PDA)-based sensors may detect these molecules. However, to improve the sensor efficiency is necessary to understand interactions between PDA vesicles and surfactants. In this work, we purpose to investigate the interactions between surfactants and PDA vesicles as well as between surfactants and PDA + cholesterol (CHO) + sphingomyelin (SPH) vesicles dispersed in water. The addition of a cationic surfactant, hexadecyltrimethylammonium bromide (CTAB), induced a blue-tored spectrophotometric transition in both structures; however, the addition of the anionic compounds, sodium dodecyl sulfate (NaDS) and lithium dodecyl sulfate (LiDS) did not change the vesicle color. The addition of the cationic surfactant increased the hydrodynamic radium (R h ) of the PDA vesicles (from 39.82 ± 3 nm to 96.85 ± 3 nm) and the PDA/CHO/SHP vesicles (from 160.89 ± 3 nm to 219.84 ± 3 nm). The presence of NaDS and LiDS also increased the size of the PDA vesicles (to 43.50 ± 3 nm and 43.75 ± 3 nm, respectively) and the PDA/ CHO/SPH vesicles (to 201.91 ± 3 nm and 210.24 ± 3 nm, respectively). The interaction energies between the cationic surfactant and PDA and PDA/CHO/ SPH were different; however, both were entropically driven. PDA vesicles show potential to be used as sensors for cationic surfactants detection.

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Section: Introductionmentioning

confidence: 79%

Section: Vesicle Preparationmentioning

confidence: 99%

Section: ……………(4)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Polydiacetylene Vesicles for Detecting Surfactants: Understanding the Driven Forces of Polydiacetylene-Surfactant Interaction

Pires¹,

Soares²,

Silva³

et al. 2016

J Food Chem Nanotechnol

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“…Colorimetry and calorimetry have occasionally been combined to enhance understanding of solvatochromic systems, e.g. [102].…”

Section: Issuementioning

confidence: 99%

Interplay of thermochemistry and Structural Chemistry, the journal (volume 21, 2010) and the discipline

Ponikvar‐Svet

Liebman

2011

Struct Chem

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Polydiacetylene Bio‐ and Chemo‐Sensors

Jelinek

2019

Encyclopedia of Analytical Chemistry

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Polydiacetylenes (PDA) are a family of conjugated polymers exhibiting unique optical properties, specifically color and fluorescence transformations. Since their first synthesis in the early 1970s, PDAs have attracted significant interest as useful and promising platforms for sensing applications, based upon the observations that varied external stimuli can induce the color and/or fluorescence transitions. Another attractive facet of PDA systems has been the feasibility to mold the polymers in diverse configurations and morphologies – vesicles, microtubes, supported films, hybrid porous matrixes, and others. This diversity makes PDA assemblies promising conduits for practical biosensing and chemosensing applications and sensor device construction. This article presents PDA‐based sensing schemes and their potential applications in biology, chemistry, art restoration, and others.

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Thermodynamic Study of Colorimetric Transitions in Polydiacetylene Vesicles Induced by the Solvent Effect

Cited by 45 publications

References 41 publications

Polydiacetylene Vesicles for Detecting Surfactants: Understanding the Driven Forces of Polydiacetylene-Surfactant Interaction

Polydiacetylene Vesicles for Detecting Surfactants: Understanding the Driven Forces of Polydiacetylene-Surfactant Interaction

Interplay of thermochemistry and Structural Chemistry, the journal (volume 21, 2010) and the discipline

Polydiacetylene Bio‐ and Chemo‐Sensors

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