Novel multi- and bio-functional hybrid polymer hydrogels based on bentonite-poly(acrylic acid) composites and sorbitol polyesters: Structural and functional characterization

Lerma, Tulio A.; Garcés, Viviana; Palencia, Manuel

doi:10.1016/j.eurpolymj.2020.109627

Cited by 26 publications

(5 citation statements)

References 41 publications

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“…Its multiple hydroxyl groups enhance hydrogen bonding interactions and provide reactive sites for the introduction of various functional groups. 106 Sorbitol-based polyesters can be synthesized using various methods, including acid- and base-catalyzed esterification, transesterification, and lipase-catalyzed polycondensation. 107,108 The choice of catalyst and reaction conditions significantly affect the final properties of the polyester.…”

Section: Bio-polyesters Based On Polyolsmentioning

confidence: 99%

Harnessing the power of polyol-based polyesters for biomedical innovations: synthesis, properties, and biodegradation

Fakhri,

Su,

Tavakoli Dare

et al. 2023

J. Mater. Chem. B

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Section: Bio-polyesters Based On Polyolsmentioning

confidence: 99%

Harnessing the power of polyol-based polyesters for biomedical innovations: synthesis, properties, and biodegradation

Fakhri,

Su,

Tavakoli Dare

et al. 2023

J. Mater. Chem. B

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“…At the present, FEDS transform only has been used for quantification of water contents in mixture with organic acids [24], determination by spectral analysis the dimerization constant of acetic acid [24], nanoparticle ultraviolet spectra [27], infrared analyses of humic acids from soil samples [28], synthetic polymers [29][30][31][32], biopolymers (collagen from fish scales) [33] and monitoring of binary systems (triethylamine/acetone) [34]. At the present, biofilm characterization using IR spectroscopy and FEDS have been performed only for Candida albicans [35].…”

Section: Theoretical Backgroundmentioning

confidence: 99%

Vibrational Spectrum Characterization of Outer Surface of Helicobacter Pylori Biofilms by Functionally-Enhanced Derivative Spectroscopy (Feds)

Palencia

García

Palencia

2020

J. Chil. Chem. Soc.

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Mid-infrared spectroscopy in conjunction with Functionally-Enhanced Derivative Spectroscopy (IR+FEDS) is a powerful analytical tool for the improvement of analysis of microorganism IR spectra. The objective of this research is to characterize the outer surface of two Helicobacter pylori strains by IR+FEDS. This work is a key stage for the study of cell-cell and cell-surface interactions between microorganisms, as well as, for polymicrobial biofilm characterizations where H. pylori species are involved. Artificial bacterial biofilms were deposited on ultrafiltration cellulose membranes covalently modified by insertion of one spectral marker and used as sensing surface for analysis of bacterial biolayers. Biolayers were analyzed using an infrared spectrophotometer with ATR. Data were analyzed by classic procedures and by deconvolution based on FEDS transform. It is concluded that, for correct application of technique is required a minimum amount of noise in the working spectra which can be achieved by simple smoothing algorithms; in addition, reproducibility must be warranted by the implementation of standardized protocols and the use of an appropriate number of samples. It is concluded that in addition to typical signals associated with the IR spectrum of microorganisms, by FEDS, a better and more detailed description of the outer membrane of H. pylori biofilms can be performed. In particular, it is concluded that the detecting and monitoring of cysteine-rich proteins can be satisfactorily performed by IR+FEDS.

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“…Particularly, the use of PCNCs has gained attention as a promising approach to address problems related to the restoration of degraded soils [ 9 , 10 ]. Furthermore, the progress in the development of geomimetic soil conditioners (materials whose design and function are inspired by natural systems of geological origin, e.g., the soil, and allow improvement in the physicochemical properties of degraded soils or soils with low agricultural suitability) has allowed progress in the construction of materials based on PCNCs capable of imitating the structures, biological/physicochemical properties, or functions of soils [ 11 , 12 , 13 ]. Thus, among the countless combinations that have not yet been explored, the synergistic interaction between NaPSS and clays has attracted significant attention towards the development of advanced materials [ 14 , 15 ].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of Nanocomposite Hydrogels Based on Poly(Sodium 4-Styrene Sulfonate) under Very-High Concentration Regimen of Clays (Bentonite and Kaolinite)

Lerma,

Combatt,

Palencia

2024

Gels

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The aim of this work was to synthesize and study the functional properties of polymer-clay nanocomposite (PCNCs) based on poly(sodium 4-styrene sulfonate) (NaPSS) and two types of clay in the dispersed phase: bentonite and kaolinite, in order to advance in the development of new geomimetic materials for agricultural and environmental applications. In this study, the effect of adding high concentrations of clay (10–20 wt. %) on the structural and functional properties of a polymer–clay nanocomposite was evaluated. The characterization by infrared spectroscopy made it possible to show that the PCNCs had a hybrid nature structure through the identification of typical vibration bands of the clay matrix and NaPSS. In addition, scanning electron microscopy allowed us to verify its hybrid composition and an amorphous particle-like morphology. The thermal characterization showed degradation temperatures higher than ~300 °C with Tg values higher than 100 °C and variables depending on the clay contents. In addition, the PCNCs showed a high water-retention capacity (>2900%) and cation exchange capacity (>112 meq/100 g). Finally, the results demonstrated the ability of geomimetic conditioners to mimic the structure and functional properties of soils, suggesting their potential application in improving soil quality for plant growth.

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Novel multi- and bio-functional hybrid polymer hydrogels based on bentonite-poly(acrylic acid) composites and sorbitol polyesters: Structural and functional characterization

Cited by 26 publications

References 41 publications

Harnessing the power of polyol-based polyesters for biomedical innovations: synthesis, properties, and biodegradation

Harnessing the power of polyol-based polyesters for biomedical innovations: synthesis, properties, and biodegradation

Vibrational Spectrum Characterization of Outer Surface of Helicobacter Pylori Biofilms by Functionally-Enhanced Derivative Spectroscopy (Feds)

Synthesis and Characterization of Nanocomposite Hydrogels Based on Poly(Sodium 4-Styrene Sulfonate) under Very-High Concentration Regimen of Clays (Bentonite and Kaolinite)

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