Hybrids and biohybrids as green materials for a blue planet

Carro, Leticia; Hablot, Elodie; Coradin, Thibaud

doi:10.1007/s10971-013-3153-z

Cited by 15 publications

(8 citation statements)

References 106 publications

(105 reference statements)

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“…The past decade has witnessed steady growth of academic and industry interest on the development of new functionalized hybrid materials with high content of biopolymers [1,2]. Biopolymers provide remarkable biocompatibility, eco-friendliness processability and comprise the best current alternatives to traditional non-biodegradable polymers.…”

Section: Introductionmentioning

confidence: 99%

Multifunctional organic–inorganic hybrids based on cellulose acetate and 3-glycidoxypropyltrimethoxysilane

Silva

Salvi

Santos

et al. 2016

J Sol-Gel Sci Technol

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Organic-inorganic hybrid films have been prepared from cellulose acetate (CA) and 3-glycidoxypropyltrimethoxysilane (GPTMS). Flexible films were fashioned with high relative content of GPTMS (up to 70 wt%) and exhibited high transparency in the visible/near-infrared region. The atomic force microscopy images of hybrid films display the presence of nanometric globular-like domains with size dependent and number dependent of the content of GPTMS. X-ray diffraction (XRD) patterns showed decreasing crystallinity of CA hybrid counterpart with increasing amounts of GPTMS. Spectroscopy results (vibrational spectroscopy FTIR and Raman scattering, 13 C and 29 Si NMR spectra) suggest that epoxy groups mostly remain intact and significant amount of methoxysilane groups is available after addition of GPTMS in CA. From 29 Si NMR results, all compositions showed the presence of non-hydrolized GPTMS molecules or having mono-and disubstituted siloxane bonds. For highest relative content of GPTMS (i.e., 50 wt%), a considerably high amount of nonhydrolized (T 0) is observed. Moreover, the addition of GPTMS leads to an increase in the thermal stability as compared to pure CA. Luminescent films were obtained by incorporating luminescent [Eu(TTA) 3 (H 2 O) 2 ] complex (TTA = thenoyltrifluoroacetonate) into the hybrid films. Spectroscopic parameters did not significantly change with the incorporation of luminescent complex, suggesting application in photonics. The 5 D 0 states quantum efficiency was observed to be the same for the neat complex and the luminescent hybrid film, suggesting a weak interaction with the host.

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Section: Introductionmentioning

confidence: 99%

Multifunctional organic–inorganic hybrids based on cellulose acetate and 3-glycidoxypropyltrimethoxysilane

Silva

Salvi

Santos

et al. 2016

J Sol-Gel Sci Technol

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“…The development of silica hybrid materials containing polysaccharides has experienced remarkable growth owing to the attractive properties of polysaccharides such as biocompatibility, biodegradability, low cost, and availability. Polysaccharide–silica hybrid materials have applications in many areas such as drug delivery, tissue engineering, the removal of pollutants, sensors, and food packaging 1,5–9…”

Section: Introductionmentioning

confidence: 99%

Carrageenan–Silica Hybrid Nanoparticles Prepared by a Non‐Emulsion Method

2015

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Spherical and monodispersed sub‐micrometer sized particles of organic–inorganic hybrids were prepared by means of a sol–gel non‐emulsion method using the biopolymer κ‐carrageenan and the alkoxysilane 3‐isocyanatopropyltriethoxysilane (ICPTES). The structural characterization of the carrageenan–silica hybrid particles was performed by using FTIR spectroscopy and solid‐state 29Si and 13C NMR spectroscopy and confirmed that κ‐carrageenan was covalently linked to the siliceous network via urethane bonds. Zeta‐potential measurements indicate the hybrids were functionalized on the surface with sulfonate groups from the polysaccharide. These hybrids display thermal sensitivity, which is of great relevance for biomedical applications such as drug encapsulation and thermally controlled drug‐delivery systems.

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“…Silica gel [24][25][26] and polyurethane foam [27,28] have been successfully use for immobilization in other studies, so they were tested in the present work. However, using these supporting materials arsenic elimination resulted completely inhibited and for this reason data were not included in Figure 4.…”

Section: Matrix Selectionmentioning

confidence: 99%