Optical devices for the detection of cyanide in water based on ethyl(hydroxyethyl)cellulose functionalized with perichromic dyes

Nandi, Leandro G.; Nicoleti, Celso R.; Marini, Vanderléia Gava; Bellettini, Ismael C.; Valandro, Silvano R.; Cavalheiro, Carla Cristina Schmitt; Machado, Vanderlei G.

doi:10.1016/j.carbpol.2016.11.039

Cited by 19 publications

(15 citation statements)

References 49 publications

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“…Several fluorescent dyes have been used in combination with polymer systems for the design of optical detection devices. ,, However, no reports on the use of 4-[4-(dimethylamino)styryl]-1-methylpyridinium iodide [DSMI] for the functionalization of polymers could be found in the literature. This fluorescent dye has been used in many applications, for instance, in the analysis of protein aggregation − and in the identification of the cell nucleus through interaction with DNA .…”

Section: Introductionmentioning

confidence: 99%

Design of Hybrid Electrospun Nanofibers Comprising a Xerogel Functionalized with a Fluorescent Dye for Application as Optical Detection Device

et al. 2019

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The electrospinning technique allows the production of micro- and nanofibers, which can be used to obtain membranes with high surface area and high porosity. These properties are of importance with regard to the use of nanomaterials in the design of optical detection devices. In this Article, electrospun blends comprising poly(ethylene oxide) [PEO] and sodium alginate [SA], with and without the adsorption of a fluorescent dye (4-[4-(dimethylamino)styryl]-1-methypyridinium iodide, [DSMI]), were prepared and characterized. PEO/SA/DSMI nanofibers presented higher fluorescence emission intensity and higher absolute quantum yield compared to DSMI in solution. However, DSMI was leached into the solution during the nanofiber cross-linking process. Thus, in order to avoid this leaching, a xerogel [XSB30] was modified with 4-[4-(dimethylamino)styryl]pyridine [DMASP] to generate covalently anchored dye units [XSB30-DMASP]. The resulting novel material was then electrospun with PEO/SA. Cross-linking of the electrospun hybrid PEO/SA/XSB30-DMASP nanofibers produced a material exhibiting an increase in both fluorescence emission and absolute quantum yield. Cellulose acetate [CA] was used for comparison because of its solubility in acetone, a less polar solvent that leads to a better distribution of the xerogel. These electrospun systems associated with fluorescent dyes have the potential to be applied in the design of logical gates and chemical sensors.

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Section: Introductionmentioning

confidence: 99%

Design of Hybrid Electrospun Nanofibers Comprising a Xerogel Functionalized with a Fluorescent Dye for Application as Optical Detection Device

et al. 2019

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“…Recently, water‐based polymer dyes have received extensive attention due to nontoxic and eco‐friendly properties . Waterborne polyurethane‐based dyes have received extensive attention in recent years due to their excellent thermal‐migration resistance, color fastness, nontoxic, and environmental‐friendly properties …”

Section: Introductionmentioning

confidence: 99%

Waterborne polyurethane‐based dye with covalently bonded to Disperse blue 60

Xian

et al. 2019

J of Applied Polymer Sci

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A series of sulfonated waterborne polyurethane-based dyes (DB60-SWPUs) with covalently bonded to different proportions of Disperse blue 60 (DB60) were prepared by a modified acetone process. The expected structures of DB60-SWPUs are characterized by Fourier transform infrared spectroscopy and 1 H-NMR spectra. The obtained DB60-SWPUs show high viscosity and intriguing storage stability. The fluorescent performances, thermal properties, and mechanical properties of DB60-SWPUs were characterized. Compared with DB60, the UV-vis spectra of DB60-WPUs have obvious hypochromic shift, and the fluorescence intensities are obviously enhanced. The migration rates of DB60-SWPUs are much lower than that of DB60. DB60-SWPUs have thermal migration resistance and excellent color fastness. The polyester fiber dyed by DB60-SWPUs has not only high color yield, good fracture strength, excellent breaking strength retention, but also good permeability and wrinkle resistance. Moreover, DB60-SWPUs are polymeric dyes with water as a solvent, which are especially suitable for environmental protection.

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“…The use of fluorescent dyes associated with polymer systems for the design of optical devices has been reported in the literature. − More recently, 4-[4-(dimethylamino)styryl]-1-methylpyridinium iodide (DSMI, Figure ) was utilized in the design of materials based on functionalized polymeric systems. This compound is a perichromic probe, which has been utilized in the investigation of pure solvents, , solvent mixtures, − and β-cyclodextrin in aqueous medium. , DSMI has also been applied in the analysis of protein aggregation, − in the identification of the cell nucleus through interaction with DNA, in the analysis of glioma, and in the bactericidal treatment against Helicobacter pylori…”

Section: Introductionmentioning

confidence: 99%

Electrospun Nanofibers of Immiscible Blends Containing a Fluorescence Dye: Direct Investigation of Polymer Domains

Dreyer

Gross

Bellettini

et al. 2020

ACS Appl. Polym. Mater.

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Poly(lactic acid) (PLA) and poly(ε-caprolactone) (PCL) are two immiscible polymers which are biodegradable and bioabsorbable, being therefore widely applied for medical materials. The formation of homogeneous fibers of PCL by electrospinning represents a difficult task due to the low viscosity of the solutions of this polymer in comparison to the PLA solutions. In addition, the development of simple techniques for the characterization of these systems represents a field of interest. In this paper, nanofibers of PLA/PCL (1:1 w/w) in a CHCl 3 :MeOH (3:1 w/w) solvent system with and without 4-[4-(dimethylamino)styryl]-1-methylpyridinium iodide (DSMI), a perichromic dye, were electrospun. The electrospun nanofibers obtained present a homogeneous diameter distribution, with average of 874 ± 205 nm in optimization condition for PLA/PCL and 627 ± 199 nm for PLA/PCL/DSMI. The analysis of the differences in the fluorescence emission of DSMI distributed in each polymer of the nanofibers allowed the direct investigation of the polymeric domains. It is proposed that these emission differences result from the preferential stabilization of resonant forms of the dye with each polymeric chain. For the PLA−DSMI system, green emission was observed, while for PCL−DSMI, red emission occurred. The fluorescence results corroborated thermal analyses, where the absence of solvents was possible to confirm. The nanofibers were compared with the dye anchored in an xerogel, which did not exhibit different emission regions due to its homogeneous distribution in the matrix.

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Optical devices for the detection of cyanide in water based on ethyl(hydroxyethyl)cellulose functionalized with perichromic dyes

Cited by 19 publications

References 49 publications

Design of Hybrid Electrospun Nanofibers Comprising a Xerogel Functionalized with a Fluorescent Dye for Application as Optical Detection Device

Design of Hybrid Electrospun Nanofibers Comprising a Xerogel Functionalized with a Fluorescent Dye for Application as Optical Detection Device

Waterborne polyurethane‐based dye with covalently bonded to Disperse blue 60

Electrospun Nanofibers of Immiscible Blends Containing a Fluorescence Dye: Direct Investigation of Polymer Domains

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