Structural, optical and chemical characterization of Rhodamine (B) doped poly (vinyl) alcohol films

Tripathi, J.; Keller, J. M.; Das, K.; Tripathi, S.; Fatima, Anis; Shripathi, T.

doi:10.1016/j.apsusc.2012.08.041

Cited by 20 publications

(6 citation statements)

References 26 publications

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“…With increasing doping wt%, there is a decrease in microhardness, showing a degradation in the mechanical properties. The surface studies discussed in our earlier publication [5] and structural/optical characterization reported in our another publication [4] also support this decrease in hardness as a function of doping,…”

Section: Effect Of Dopingsupporting

confidence: 68%

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Correlation between microhardness and surface properties of Rhodamine B doped PVA films

Tripathi

Sharma

et al. 2014

AIP Conference Proceedings

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Section: Effect Of Dopingsupporting

confidence: 68%

“…They are useful in a variety of fields (e.g., producers and material consumers, research organizations etc.). Microhardness testing is a well-known nondestructive technique to obtain information on structural features and change in mechanical properties of pure, doped and blended polymers [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Correlation between microhardness and surface properties of Rhodamine B doped PVA films

Tripathi

Sharma

et al. 2014

AIP Conference Proceedings

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“…For samples with addition of various amounts and types of Rhodamine dyes, minimal differences in the FTIR spectra were observed, and the characteristic absorption peaks of Rhodamine dyes cannot be distinguished in the obtained FTIR spectra. This finding is attributed to a significantly lower mass fraction of Rhodamine dyes in the obtained material relative to the matrix materials, and the IR absorptions have been covered by the matrix, especially while characteristic absorption peaks are in the vicinity of the absorptions of F127-MF matrix materials …”

Section: Results and Discussionmentioning

confidence: 95%

Ratiometric Nanothermometer Based on Rhodamine Dye-Incorporated F127-Melamine-Formaldehyde Polymer Nanoparticle: Preparation, Characterization, Wide-Range Temperature Sensing, and Precise Intracellular Thermometry

Liu

et al. 2016

ACS Appl. Mater. Interfaces

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A series of fluorescent nanothermometers (FTs) was prepared with Rhodamine dye-incorporated Pluronic F-127-melamine-formaldehyde composite polymer nanoparticles (R-F127-MF NPs). The highly soluble Rhodamine dye molecules were bound with Pluronic F127 micelles and subsequently incorporated in the cross-linked MF resin NPs during high-temperature cross-link treatment. The morphology and chemical structure of R-F127-MF NPs were characterized with dynamic light scattering, electron microscopy, and Fourier-transform infrared (FTIR) spectra. Fluorescence properties and thermoresponsivities were analyzed using fluorescence spectra. R-F127-MF NPs are found to be monodispersed, presenting a size range of 88-105 nm, and have bright fluorescence and high stability in severe treatments such as autoclave sterilization and lyophilization. By simultaneously incorporating Rhodamine B and Rhodamine 110 (as reference) dyes at a doping ratio of 1:400 in the NPs, ratiometric FTs with a high sensibility of 7.6%·°C(-1) and a wide temperature sensing range from -20 to 110 °C were obtained. The FTs exhibit good stability in solutions with varied pH, ionic strengths, and viscosities and have similar working curves in both intracellular and extracellular environments. Cellular temperature variations in Hela cells during microwave exposure were successfully monitored using the FTs, indicating their considerable potential applications in the biomedical field.

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“…The excellent chemical resistance and optical and physical properties of PVA resins, have been resulted in its broad biomedical applications . PVA also shows great potential for application in the production of biodegradable/biocompatible films, gels, fibers, sponges, beads, and nanoparticles . However, the hydrophilicity nature of PVA is its disadvantage when considering the use of PVA film as protective barriers, because they tend to swell or dissolve when contact with the surface with high moisture content.…”

Section: Introductionmentioning

confidence: 99%

Antioxidant, antifungal, water binding, and mechanical properties of poly(vinyl alcohol) film incorporated with essential oil as a potential wound dressing material

Kavoosi

Nateghpoor

Dadfar

et al. 2014

J of Applied Polymer Sci

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In this study, the properties of poly (vinyl alcohol) (PVA) films incorporated with Zataria multiflora essential oil (ZMO) as a potential antioxidant/antibacterial material was investigated. PVA films were prepared from PVA solutions (2% w/v) containing different concentrations of ZMO. Water solubility, moisture absorption, water swelling, and water vapor permeability for pure PVA films were 57 ± 1.1, 99 ± 3.2%, 337 ± 8%, and 0.453 ± 0.015 g mm/m2 h, respectively. Incorporation of ZMO into PVA films caused a significant decrease in water swelling and moisture absorption and increase in solubility and water vapor permeability. Tensile strength, elastic modulus, and elongation at break for pure PVA films were 13.5 ± 0.61 MPa, 15.2 ± 0.8 MPa, and 216 ± 4%, respectively. Incorporation of ZMO into the PVA films caused a significant decrease in tensile strength and elastic modulus and increase in elongation at break of the films. Pure PVA film showed UV‐visible light absorbance ranging from 280 to 440 nm with maximum absorbance at 320 nm. Addition of ZMO caused a significant increase in light absorbance and opacity. PVA films exhibited no antioxidant and antifungal activities, whereas PVA/ZMO films exhibited excellent antioxidant and antifungal properties. Although the bioactivity PVA films were improved by the addition of ZMO, however, the mechanical properties and water binding capacity of the films were weaken slightly. Thus, ZMO emulsified in the ethanol not compatible with PVA matrix and more suitable emulsifier was needed in order to obtain strong film with higher mechanical properties. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 40937.

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Structural, optical and chemical characterization of Rhodamine (B) doped poly (vinyl) alcohol films

Cited by 20 publications

References 26 publications

Correlation between microhardness and surface properties of Rhodamine B doped PVA films

Correlation between microhardness and surface properties of Rhodamine B doped PVA films

Ratiometric Nanothermometer Based on Rhodamine Dye-Incorporated F127-Melamine-Formaldehyde Polymer Nanoparticle: Preparation, Characterization, Wide-Range Temperature Sensing, and Precise Intracellular Thermometry

Antioxidant, antifungal, water binding, and mechanical properties of poly(vinyl alcohol) film incorporated with essential oil as a potential wound dressing material

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