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In this study, we utilized different types of particles to stabilize β-carotene-loaded Pickering emulsions: spherical hydrophobic zein colloidal particles (ZCPs) (517.3 nm) and rod-shaped hydrophilic cellulose nanocrystals (CNCs) (115.2 nm). Either of the particles was incapable of stabilizing Pickering emulsions owing to their inappropriate wettability. When the mass ratio of ZCPs and CNCs was 1:4, the Pickering emulsion showed the best physical and photothermal stability. Compared to the ZCPstabilized Pickering emulsion (9.29%), the retention rate of β-carotene in the Pickering emulsion costabilized by ZCPs and CNCs was increased to 60.23% after 28 days of storage at 55 °C. Confocal microscopy and cryoscanning electron microscopy confirmed that different types of particles could form a multilayered structure or induce the formation of an interparticle network. Furthermore, the complexation of ZCPs and CNCs delayed the lipolysis of the emulsion during in vitro digestion. The free fatty acid (FFA) release rate of Pickering emulsions in the small intestinal phase was reduced from 19.46 to 8.73%. Accordingly, the bioaccessibility of βcarotene in Pickering emulsions ranged from 9.14 to 27.25% through adjusting the mass ratio and addition sequence of distinct particles at the interface. The Pickering emulsion with the novel particle−particle complex interface was designed in foods and pharmaceuticals for purpose of enhanced stability, delayed lipolysis, or sustained nutrient release.

Electroorganic synthesis is an environmentally friendly alternative to traditionals ynthetic methods; however,t he application of this strategy is heavily hindered by low product selectivity.M etal-organic frameworks (MOFs) exhibit high selectivity in numerous catalytic reactions;h owever, poor conductivity heavily limits the application of MOFs in electroorganic synthesis. To realize the electrocatalytic application of MOFs in selectivee lectroorganic synthesis, ap ractically applicable strategy by suspending ion electrocatalysts in charged MOFs is herein reported. This approach could markedly improvet he product selectivity in electroorganic synthesis. In the electrocatalytic oxidatives elf-coupling of benzylamine experiments, the imine product selectivityi s markedly improved from 61.3 to 94.9 %, when the MOFbased electrocatalyst is used instead of the corresponding homogeneous electrocatalyst under the identical conditions. Therefore, this work opensanew route to improvet he product selectivity in electroorganic synthesis.[a] W.

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Hate speech has plagued human societies for decades and severely influenced the whole world. By analyzing a balanced panel dataset covering 167 countries and 19 years derived from the V-Dem project, the relationships between critical Internet context indicators and online hate speech were disentangled, casting light on how to tackle the hate speech problem on a global scale. We found that Internet penetration was positively associated with online hate speech in general, confirming Internet's technological affordances have the potential to facilitate hate speech expression. Online legal regulation was negatively related to online hate speech but had no significant moderating effect between Internet penetration and online hate speech, reflecting an underlying tension among legal approaches’ comprehensive effects. Online opinion polarization was positively related to online hate speech and significantly moderated the relationship between Internet penetration and online hate speech, which indicated that a polarized opinion atmosphere might exacerbate hate speech and intensify intergroup conflicts. Our findings’ theoretical contributions and policy implications are further discussed.

The novel multilayered core-shell microparticles were developed to deliver curcumin using positively charged zein microparticles coated by negatively charged cellulose nanocrystals (CNCs) and positively charged whey protein microgel (WPM) at...