Sol–gel encapsulation of cells is not limited to silica: long-term viability of bacteria in alumina matrices

Amoura, Makhlouf; Nassif, Nadine; Roux, Cécile; Livage, Jacques; Coradin, Thibaud

doi:10.1039/b711380c

Cited by 48 publications

(48 citation statements)

References 33 publications

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“…16 It is usually prepared by using aluminum alkoxides 10,17 as the precursor in the most studies. Obviously, the cost is high due to the involvement of the expensive alkoxide precursor.…”

Section: Introductionmentioning

confidence: 99%

Sol–Gel Derived Boehmite as an Efficient and Robust Carrier for Enzyme Encapsulation

Zhu

Jiang

Zhang

et al. 2011

Ind. Eng. Chem. Res.

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Boehmite particles were prepared by a facile solÀgel method using sodium aluminate as the precursor under ambient conditions, and they were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), powder X-ray diffraction (XRD), nitrogen adsorption, etc. It is found that the boehmite particles consist of flat nanostrips, which are about 230 nm in length and 30 nm in width. The nanostrips are composed of nanoneedles of about 7 nm in diameter and 24 nm in length. The BrunauerÀEmmettÀTeller (BET) specific surface area, pore size, and pore volume of boehmite particles are 165 m 2 g À1 , 3.8 nm, and 0.11 cm 3 g À1 , respectively. Moreover, these boehmite particles are used as an efficient and robust carrier to encapsulate a model enzyme: bovine liver catalase. The catalase encapsulated in boehmite particles exhibits higher pH, thermal, and storage stabilities compared to its free counterpart. These results indicate that boehmite may become a competitive carrier for biological and technological applications.

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“…16 It is usually prepared by using aluminum alkoxides 10,17 as the precursor in the most studies. Obviously, the cost is high due to the involvement of the expensive alkoxide precursor.…”

Section: Introductionmentioning

confidence: 99%

Sol–Gel Derived Boehmite as an Efficient and Robust Carrier for Enzyme Encapsulation

Zhu

Jiang

Zhang

et al. 2011

Ind. Eng. Chem. Res.

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“…around the biological material, which produce the final biohybrid structure. [67] Although there are examples of other inorganic materials being used for this purpose, such as Al 2 O 3 , [112,113] V 2 O 5 , [114] TiO 2 , [115,116] ZrO 2 , [117] and Fe 2 O 3 , [118] porous silica has been the primary material for encapsulating enzymes and cells. Indeed, silica has several desired and unique features.…”

Section: Entrapmentmentioning

confidence: 99%

Biofuel cells Based on the Immobilization of Photosynthetically Active Bioentities

et al. 2011

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Natural photosynthesis is a highly efficient process that uses sunlight irradiation to convert carbon dioxide into value‐added biomass. This review summarizes the recent advances in the transformation of solar energy into electrical power through the exploitation of photosynthetically active proteins, organelles, and living cells. During the past decade, the considerable progress made in bioentities immobilization offers the possibility to integrate biological systems into electronic devices. Even though solar energy technologies are gaining increasing attention, photosynthetic biofuel cells are still in their infancy. Advances in materials science are necessary to protect, stabilize, and even increase the catalytic performance of bioentities. Moreover, host materials could guarantee higher loading and better electrical charge transport, which would be crucial in the commercial success of biofuel cells. In the future, such semi‐artificial hybrid assemblies could hold promise as sustainable sources of energy.

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“…These immobilization techniques can be described as post-synthesis, in-situ and multistep immobilization as suggested by Leonard et al in a recent review on whole-cells based hybrid materials [6]. According to the immobilization methods, a large variety of material supports has been used, ranging from biopolymers [8] (such as alginate, k-carragenan, cellulose and collagen) or synthetic polymers [9] (polyacrylamide, polyvinylalcohol) to inorganic compounds [10][11][12][13][14](silica, clays, oxides).…”

Section: Introductionmentioning

confidence: 99%

Bacteria encapsulated in layered double hydroxides: Towards an efficient bionanohybrid for pollutant degradation

Halma

Mousty

Forano

et al. 2015

Colloids and Surfaces B: Biointerfaces

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Sol–gel encapsulation of cells is not limited to silica: long-term viability of bacteria in alumina matrices

Abstract: A colloidal route to aqueous alumina gels is described, allowing the long-term viability of encapsulated bacteria.

Cited by 48 publications

References 33 publications

Sol–Gel Derived Boehmite as an Efficient and Robust Carrier for Enzyme Encapsulation

Sol–Gel Derived Boehmite as an Efficient and Robust Carrier for Enzyme Encapsulation

Biofuel cells Based on the Immobilization of Photosynthetically Active Bioentities

Bacteria encapsulated in layered double hydroxides: Towards an efficient bionanohybrid for pollutant degradation

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