Valorization of by-products of the sugar industry: New nanostructured hybrid materials containing sugar derived structures

Hérault, Damien; Rodembusch, Fabiano Severo; Campo, Leandra Franciscato; Gingras, Marc; Cerveau, Geneviève; Corriu, Robert J. P.

doi:10.1016/j.crci.2010.04.001

Cited by 17 publications

(10 citation statements)

References 37 publications

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“…1) following a published procedure. 45 Briefly, 0.2 g of sorbitol was added to 3 mL of dry DMF in a round bottom flask using continuous flow of nitrogen and placed in an oil bath under constant stirring. The temperature was elevated to 40 °C to accelerate the dissolution of sorbitol.…”

Section: Methodsmentioning

confidence: 99%

Synthesis of water-degradable silica nanoparticles from carbamate-containing bridged silsesquioxane precursor

et al. 2018

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Silica nanoparticles (SNPs) are attractive for applications for the delivery of drugs and as imaging agents due to their ease of synthesis and scale up, robust structure, and controllable size and composition. Degradability is one important factor that limits biomedical applications of SNPs. With this in mind, we designed, prepared and characterized novel hydrolysable organosilica nanoparticles (ICPTES-Sorbitol SNPs). These particles were prepared by co-condensation of tetraethoxysilane with a bridged sorbitol-based silsesquioxane precursor containing carbamate linkages. The non-porous spherical ICPTES-Sorbitol SNPs became porous after they were placed in an aqueous environment as a result of the hydrolysis of carbamate bonds and were completely degraded upon prolonged exposure to water. The rate of degradation depended on the pH of the solution, with nanoparticles degrading slower at pH 2 than at pH 4 or pH 7. The degradation was demonstrated by transmission electron microscopy, nitrogen desorption analysis and solution analytical techniques such as ICP-MS and molybdenum blue assay, which was also used to follow the dissolution of ICPTES-Sorbitol SNPs.

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Section: Methodsmentioning

confidence: 99%

Synthesis of water-degradable silica nanoparticles from carbamate-containing bridged silsesquioxane precursor

et al. 2018

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“…Polyalcohol, as important medium temperature PCMs, have attracted increasing attention because of the advantages of high phase change enthalpy, chemical stability, low cost and non-toxicity [16,20,21]. For instance, D-mannitol was proved to be an excellent medium temperature PCM in solar thermal engineering and waste recovery systems because of high latent heat storage capacity in the temperature range of 135-175°C [22,23].…”

Section: Introductionmentioning

confidence: 99%

Preparation of microencapsulated medium temperature phase change material of Tris(hydroxymethyl)methyl aminomethane@SiO2 with excellent cycling performance

Yang

et al. 2015

Applied Energy

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“…17 A wide variety of organic functionalities can be incorporated into the silica network, 18 including alkyl, aromatic, heterocyclic groups, chelating systems (cyclames, crown ethers, porphyrins, etc. ), chiral molecules, 19,20 as well as polymers. 2,9,21 The most common self-organization of organic units can be obtained by van der Waals interactions, for example p-p interaction between the aromatic rings and/or by intermolecular H-bonding, such as ureido groups between organic groups.…”

Section: Introductionmentioning

confidence: 99%

Bis-silylated terephthalate as a building block precursor for highly fluorescent organic–inorganic hybrid materials

et al. 2012

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A bis-silylated diethyl 2,5-bis [N,N-(3-triethoxysilyl)propylurea]terephthalate precursor (5) was synthesized from a terephthalate derivative (3) and successfully used to prepare highly fluorescent organosilicas by hydrolytic self-condensation (DPM1) and co-condensation (DPM2) with tetraethoxysilane. The dyes 3 and 5 present absorption in the UV-Vis region and fluorescence emission in the yellow and blue regions, respectively. The red-shifted bands in the absorption spectra of dye 3 with respect to dye 5 can be related to the formation of intramolecular charge transfer (ICT) state even in the ground-state due to the strong electron-donor amino groups and moderate electron-withdrawing carbonyl groups present in the benzenic ring. The small Stokes' shift, as well as the high fluorescence quantum yield values discards the intramolecular proton transfer mechanism in the excited state. The fluorescence emission dependence on the solvent polarity indicates that an intramolecular charge transfer (ICT) or a locally excited (LE) state is taking place in the excited state to the dyes 3 and 5, respectively. The new fluorescent hybrid materials (DPM1 and DPM2) show absorption maxima in the solid state located at around 390 nm, indicating that the electronic structure of the fluorescent precursor was not significantly perturbed in the ground state after its self-condensation or co-condensation with TEOS. The fluorescent material DPM2 presents a photophysical behavior quite similar to the precursor in solution. On the other hand, the self-condensed material DPM1 presents a fluorescence emission maximum red-shifted by 33 nm, which can be probably attributed to p-p stacking between the terephthalate cores. Any evidence of auto-organization could be observed in these materials.

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Valorization of by-products of the sugar industry: New nanostructured hybrid materials containing sugar derived structures

Cited by 17 publications

References 37 publications

Synthesis of water-degradable silica nanoparticles from carbamate-containing bridged silsesquioxane precursor

Synthesis of water-degradable silica nanoparticles from carbamate-containing bridged silsesquioxane precursor

Preparation of microencapsulated medium temperature phase change material of Tris(hydroxymethyl)methyl aminomethane@SiO2 with excellent cycling performance

Bis-silylated terephthalate as a building block precursor for highly fluorescent organic–inorganic hybrid materials

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