Pickering emulsion-enhanced interfacial biocatalysis: tailored alginate microparticles act as particulate emulsifier and enzyme carrier

Yang, Xin; Wang, Yaolei; Bai, Ruixue; Ma, Hulin; Wang, Weihao; Sun, Hongqi; Dong, Yajie; Qu, Fengmei; Tang, Qiming; Guo, Tao; Binks, Bernard P.; Meng, Tao

doi:10.1039/c8gc03573c

Cited by 64 publications

(50 citation statements)

References 41 publications

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“…In Pickering emulsions, solid particles are irreversibly immobilized at the oil–water interface because of their high adsorption energy to suppress the emulsion coalescence, which makes the obtained emulsion highly stable. [ 32–37 ] Therefore, the Pickering emulsions have been regarded as ideal templates for the fabrication of the essential oil–loaded microcapsules by fixing the solid particles at the emulsion droplet interface. However, there is little literature describing the preparation of the CMO‐loaded microcapsules based on Pickering emulsion templates.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Cinnamon Oil‐Loaded Antibacterial Composite Microcapsules by In Situ Polymerization of Pickering Emulsion Templates

Liu

et al. 2020

Macro Materials & Eng

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In this study, the cinnamon oil (CMO)‐loaded antibacterial composite microcapsules with silicon dioxide (SiO2)/poly(melamine formaldehyde) (PMF) hybrid shells are effectively and facilely constructed by in situ polymerization of SiO2 nanoparticle–stabilized Pickering emulsion templates. The morphological structure, composition, and thermal performance of the microcapsules are determined by scanning electronic microscopy, Fourier transform infrared spectroscopy, and thermal gravimetric analysis. In addition, in vitro CMO release and antimicrobial investigations of the microcapsules are also performed, respectively. The results demonstrate that the microcapsules own an approximately spherical shape with a core–shell structure. Moreover, the micro‐encapsulation of CMO clearly increases its thermal stability, and meanwhile results in obtaining microcapsules with the controlled CMO release and visibly long‐term antimicrobial effects. All the results show that in situ polymerization based on templating Pickering emulsions is an attractive method to construct antibacterial essential oil–loaded microcapsules, which can be served as promising antibacterial materials.

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Section: Introductionmentioning

confidence: 99%

Preparation of Cinnamon Oil‐Loaded Antibacterial Composite Microcapsules by In Situ Polymerization of Pickering Emulsion Templates

Liu

et al. 2020

Macro Materials & Eng

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“…3(g)). 90 Yet another way of stabilising Pickering emulsions is with mixtures of particles, especially those of opposite charge. [91][92][93] Inspired from this idea, Yang et al used the colloidal tectonic approach to prepare emulsions stabilized from the interaction between cationic [C 12 ] 3 [PW 12 O 40 ] nanoparticles (resulting from the ionic attraction between dodecyltrimethylammonium chains and phopshotungstate anions) and anionic silica nanoparticles grafted with alkyl and sulfonic acid groups.…”

Section: (B) Pickering Interfacial Catalysismentioning

confidence: 99%

Catalysis in Pickering emulsions

Rodriguez

Binks

2020

Soft Matter

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“…In order to determine the type of Pickering emulsion, PBS was mixed with FITC-Dex and then used as the aqueous phase for emulsion preparation. The labelled CALB@SNFs-PE was observed by confocal laser scanning microscopy (CLSM, Leica TCS SP5 optical microscope) with the emission of 495-545 nm [9,47,48].…”

Section: Characterizationmentioning

confidence: 99%

Silica Nanoflowers-Stabilized Pickering Emulsion as a Robust Biocatalysis Platform for Enzymatic Production of Biodiesel

et al. 2019

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Enzymatic production of biodiesel had attracted much attention due to its high efficiency, mild conditions and environmental protection. However, the high cost of enzyme, poor solubility of methanol in oil and adsorption of glycerol onto the enzyme limited the popularization of the process. To address these problems, we developed a silica nanoflowers-stabilized Pickering emulsion as a biocatalysis platform with Candida antarctica lipase B (CALB) as model lipase for biodiesel production. Silica nanoflowers (SNFs) were synthesized in microemulsion and served as a carrier for CALB immobilization and then used as an emulsifier for constructing Pickering emulsion. The structure of SNFs and the biocatalytic Pickering emulsion (CALB@SNFs-PE) were characterized in detail. Experimental data about the methanolysis of waste oil to biodiesel was evaluated by response surface methodology. The highest experimental yield of 98.5 ± 0.5% was obtained under the optimized conditions: methanol/oil ratio of 2.63:1, a temperature of 45.97 °C, CALB@SNFs dosage of 33.24 mg and time of 8.11 h, which was closed to the predicted value (100.00%). Reusability test showed that CALB@SNFs-PE could retain 76.68% of its initial biodiesel yield after 15 cycles, which was better than that of free CALB and N435.

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Pickering emulsion-enhanced interfacial biocatalysis: tailored alginate microparticles act as particulate emulsifier and enzyme carrier

Abstract: A robust Pickering emulsion stabilized by lipase-immobilized alginate gel microparticles with a coating of silanized titania nanoparticles is developed for biphasic biocatalysis.

Cited by 64 publications

References 41 publications

Preparation of Cinnamon Oil‐Loaded Antibacterial Composite Microcapsules by In Situ Polymerization of Pickering Emulsion Templates

Preparation of Cinnamon Oil‐Loaded Antibacterial Composite Microcapsules by In Situ Polymerization of Pickering Emulsion Templates

Catalysis in Pickering emulsions

Silica Nanoflowers-Stabilized Pickering Emulsion as a Robust Biocatalysis Platform for Enzymatic Production of Biodiesel

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