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In the rapidly advancing field of colloid and interface chemistry, food-grade nanoparticles are garnering increased attention for their potential applications in food preservation and innovative material development. Pickering emulsions, stabilized by solid particles, are especially noteworthy for their versatile applicability, spanning from food preservation to innovative material engineering. However, crafting a reliable, application-specific Pickering emulsion that amalgamates both stability and functionality poses a substantial challenge. In this research, we present an in-depth analysis of octadecenylsuccinic anhydride (ODSA) modified γ-cyclodextrin metal-organic frameworks (OCMs) stabilized ODSA Pickering emulsions, probing their stability across varying pH values and ionic strengths, and evaluating their groundbreaking applications, notably in paper coating and enhancing food shelf life. Our results unequivocally indicate a pronounced improvement in paper water resistance and fruit preservation after treatment with the OCMs-ODSA emulsion, heralding a novel methodology in these areas. Additionally, our studies illuminate the intrinsic antimicrobial attributes of OCMs, accentuating their cardinal role in augmenting the emulsion's preservation capabilities and heralding potential widespread applications in microbial mitigation, decay deterrence, and beyond. [Display omitted] • OCMs bolster ODSA Pickering emulsions for improved paper & food preservation. • Elevated pH levels enhance ODSA emulsion stability through droplet repulsion. • Papers coated with 3 wt% (w/v) OCM exhibit superior water resistance and freshness. • Fruit coatings with ODSA emulsions markedly reduce weight loss and spoilage. • OCMs exhibit potent antimicrobial activity, with marked efficacy against S. aureus. [ABSTRACT FROM AUTHOR]

[Display omitted] • CMC induced depletion attraction to form stable HIPPEs. • Yolk/CMC mass ratio affected the stabilizing effect of depletion force on HIPPEs. • Rheological texts showed that ink could be printed smoothly and safely swallowed. • The 3D printing food with HIPPEs as the ink had good shape fidelity. • Depletion force improved the bioaccessibility of β-carotene for the elder. In this study, a carboxymethylcellulose (CMC) induced depletion attraction was developed to stabilize high internal phase Pickering emulsions (HIPPEs) as age-friendly 3D printing inks. The results demonstrated that depletion force induced the adsorption of yolk particles at the droplet interface and the formation of osmotic droplet clusters, thereby increasing the stability of HIPPEs. In addition, the rheological properties and nutrient delivery properties of HIPPEs could be adjusted by the mass ratio of yolk/CMC. The HIPPEs stabilized at yolk/CMC mass ratio 20:7.5 showed optimal printability, viscoelastic, structural recovery, and swallowability. HIPPEs have been applied to 3D printing, International Dysphagia Dietary Standardization Initiative (IDDSI) test, and in vitro digestive simulation in the elderly, indicating their attractive appearance, safe swallowability, and enhanced bioaccessibility of β-carotene. Our work provides new ideas for developing age-friendly foods with plasticity and nutrient delivery capacity by depletion attraction stabilizing HIPPEs. [ABSTRACT FROM AUTHOR]

[Display omitted] • The composite membrane has superhydrophilicity and underwater superoleophobicity. • The composite membrane demonstrates enhanced UV cleaning capabilities. • The composite membrane achieves over 100% flux recovery rate under UV irradiation. • The composite membrane can continuously separate emulsion with excellent parameters. • The composite membrane shows superior oil resistance and durability. In the emulsion separation process, the adhesion of oil-contamination severely hampers the long-term operation of ceramic membranes, and photocatalytic membranes present a promising approach to mitigate membrane fouling and enhance membrane performance. The present study describes the fabrication of a novel Al 2 O 3 @GO-TiO 2 composite photocatalytic membrane through a two-step dip-coating method. TiO 2 particles were uniformly deposited onto the surface of the pristine membrane via a thermal coating method, while the pleated graphene oxide (GO) formed a laminar-flow-like coating through stirring-ultrasonication, ultimately being stably anchored to the composite membrane's surface by co-built connections with TiO 2. Due to the successful coating of hydrophilic groups, the composite membrane exhibited super hydrophilic-underwater superoleophobic properties to separate stable water-in-diesel emulsions with excellent permeation flux (4347.17 L∙m−2∙h−1) and oil removal rate (94.98 %). The composite membrane showed excellent oil resistance stability and durability in severe environment hydrodynamic washout and cycling tests. In addition, the combined modification of GO-TiO 2 endowed the composite membranes with strong photocatalytic ability, which made the membranes exhibit a good recovery of membrane performance in the separation of oilfield-produced water (OPW). The thick oil layer was completely removed by •OH, •O 2 – and 1O 2 generated by UV irradiation excitation. After 6 h of operation, the flux and oil removal rate of the Al 2 O 3 @GO-TiO 2 membrane were 31.91 % and 2.1 % higher than those of the Al 2 O 3 @TiO 2 membrane, demonstrating enhanced light self-cleaning performance. The exceptional oil–water separation capability coupled with its efficient photocatalytic degradation potential positions the ceramic membrane as a promising solution for treating actual OPW. [ABSTRACT FROM AUTHOR]

Traditional water-based PV/T systems have low heat storage density, high PV backsheet temperatures, and low energy utilization in practical applications. In this work, nanoparticles were applied to improve thermal conductivity and simultaneously emulsions were added to enhance energy storage density of the conventional heat transfer media. Furthermore, the synergistic effect of nanocomposite Phase Change Material Emulsions (PCME) as the heat transfer medium on the thermoelectric efficiency of PV/T was studied in a real system. Specifically, the water-based 30 % paraffin emulsions with graphene oxide (GO) concentration of 0.01, 0.02 and 0.03 wt% were prepared by ultrasonic stirring and their thermophysical properties were characterized. The results show that the 30 wt% paraffin emulsion with addition of 0.02 wt% GO has the phase change temperature of 35 °C, latent heat of 42.93 J/g, thermal conductivity of 0.505 W/(m·K) and viscosity coefficient of 0.91. It shows the thermal efficiency of the paraffin/GO emulsion increased by 92.28 %, the electrical efficiency increased by 8.87 %, the comprehensive efficiency increased by 45.75 %, and 15.8 % increase in heat collection for the heat exchange tank in comparison with the water. It is concluded application of PCME would improves the thermoelectric performance of the system than traditional water-based PV/T systems. • Applying paraffin emulsions with GO nanoparticles to a practical PV/T system. • Optimal nanocomposite paraffin emulsion is selected by performance testing. • Comparing the performance and pumping consumption with water-based PV/T systems. • Greater improvement in thermoelectric efficiency of PV/T systems compared to water. [ABSTRACT FROM AUTHOR]