Structuring Pickering Emulsion Interfaces with Bilayered Coacervates of Cellulose Nanofibers and Hectorite Nanoplatelets.

In this study, we present a water-in-silicone oil (W/S) Pickering emulsion system stabilized via in situ interfacial coacervation of attractive hectorite nanoplatelets (AHNPs) and bacterial cellulose nanofibrils (BCNFs). A bilayered coacervate is generated at the W/S interface by employing the controlled electrostatic interaction between the positively charged AHNPs and the negatively charged BCNFs. The W/S interface with the bilayered coacervate shows a significant increase in the interfacial modulus by 2 orders of magnitude than that with the AHNPs only. In addition, we observe that water droplets are interconnected by the BCNF bridging across the continuous phase of silicon, which is attributed to the diffusive transport phenomenon. This droplet interconnection results in the effective prevention of drop coalescence, which is confirmed via emulsion sedimentation kinetics. These results indicate that our bilayered coacervation technology has the potential of developing a promising Pickering emulsion platform that can be used in the pharmaceutical and cosmetic industries.

[1]  Doyeon Kim,et al.  Fabrication of attractive hectorite nanoplatelets by high-pressure homogenization for shear-responsive reversible rheology modification of organogels , 2020 .

[2]  Dexin Liu,et al.  Investigation on the effects of AlOOH nanoparticles on sodium dodecylbenzenesulfonate stabilized o/w emulsion stability for EOR , 2020 .

[3]  H. Dai,et al.  Recent advances on cellulose nanocrystals for Pickering emulsions: Development and challenge , 2020, Trends in Food Science & Technology.

[4]  V. Prevot,et al.  Surfactant-free synthesis of layered double hydroxide-armored latex particles , 2020, Polymer Chemistry.

[5]  Avirup Das,et al.  Effect of organomodifier on the electrical property of a smectite clay Hectorite , 2020 .

[6]  Ji-won Park,et al.  Clay-polystyrene nanocomposite from pickering emulsion polymerization stabilized by vinylsilane-functionalized montmorillonite platelets , 2019 .

[7]  O. Ozdemir,et al.  Coating Mechanism of AuNPs onto Sepiolite by Experimental Research and MD Simulation , 2019 .

[8]  Yajuan Sun,et al.  Montmorillonite and alginate co-stabilized biocompatible Pickering emulsions with multiple-stimulus tunable rheology. , 2019, Journal of colloid and interface science.

[9]  R. Pal.  Modeling of Sedimentation and Creaming in Suspensions and Pickering Emulsions , 2019, Fluids.

[10]  B. Murray,et al.  Water-in-Oil Pickering Emulsions Stabilized by Synergistic Particle-Particle Interactions. , 2019, Langmuir : the ACS journal of surfaces and colloids.

[11]  Hao Zhang,et al.  Hectorite: Synthesis, modification, assembly and applications , 2019, Applied Clay Science.

[12]  Yulin Deng,et al.  Pickering emulsion stabilized by amphiphilic pH-sensitive starch nanoparticles as therapeutic containers. , 2019, Colloids and surfaces. B, Biointerfaces.

[13]  Wenxia Liu,et al.  A fluorescent pickering-emulsion stabilizer prepared using carbon nitride quantum dots and laponite nanoparticles , 2019, Colloids and Surfaces A: Physicochemical and Engineering Aspects.

[14]  T. Russell,et al.  Adaptive Structured Pickering Emulsions and Porous Materials Based on Cellulose Nanocrystal Surfactants. , 2018, Angewandte Chemie.

[15]  Jong‐Ho Kim,et al.  Environmental Stimuli‐Irresponsive Long‐Term Radical Scavenging of 2D Transition Metal Dichalcogenides through Defect‐Mediated Hydrogen Atom Transfer in Aqueous Media , 2018, Advanced Functional Materials.

[16]  Linjiang Wang,et al.  Selective modification of kaolinite with vinyltrimethoxysilane for stabilization of Pickering emulsions , 2018, Applied Clay Science.

[17]  M. Wahlgren,et al.  Pickering emulsions based on CaCl2-gelatinized oat starch , 2018, Food Hydrocolloids.

[18]  R. Bandyopadhyay,et al.  Electric field induced gelation in aqueous nanoclay suspensions. , 2018, Soft matter.

[19]  Y. Grohens,et al.  Thermal Superinsulating Materials Made from Nanofibrillated Cellulose-Stabilized Pickering Emulsions. , 2018, ACS applied materials & interfaces.

[20]  Wenyao Shao,et al.  Microencapsulation of Algal Oil Using Spray Drying Technology. , 2018, Food technology and biotechnology.

[21]  D. Petsev,et al.  Solvophilic and solvophobic surfaces and non-Coulombic surface interactions in charge regulating electric double layers. , 2018, The Journal of chemical physics.

[22]  Jin Woong Kim,et al.  Magnetic-Patchy Janus Colloid Surfactants for Reversible Recovery of Pickering Emulsions. , 2018, ACS applied materials & interfaces.

[23]  M. Pérez-Madrigal,et al.  Controlling the Size of Two-Dimensional Polymer Platelets for Water-in-Water Emulsifiers , 2017, ACS central science.

[24]  C. Osuji,et al.  Smart Cellulose Nanofluids Produced by Tunable Hydrophobic Association of Polymer-Grafted Cellulose Nanocrystals. , 2017, ACS applied materials & interfaces.

[25]  Xiangxiang Liu,et al.  Programming Self-Assembly of Tobacco Mosaic Virus Coat Proteins at Pickering Emulsion Interfaces for Nanorod-Constructed Capsules. , 2017, ACS applied materials & interfaces.

[26]  Lei Wang,et al.  High temperature stable W/O emulsions prepared with in-situ hydrophobically modified rodlike sepiolite. , 2017, Journal of colloid and interface science.

[27]  J. V. van Duijneveldt,et al.  Controlling the Rheology of Montmorillonite Stabilized Oil-in-Water Emulsions. , 2017, Langmuir : the ACS journal of surfaces and colloids.

[28]  Yixuan Song,et al.  Edge Charge Neutralization of Clay for Improved Oxygen Gas Barrier in Multilayer Nanobrick Wall Thin Films. , 2016, ACS applied materials & interfaces.

[29]  A. Sharma,et al.  Fast mass and charge transport through electrically aligned CNT/polymer nanocomposite membranes , 2016 .

[30]  Darshana Joshi,et al.  Kinetic control of the coverage of oil droplets by DNA-functionalized colloids , 2016, Science Advances.

[31]  M. Stevens,et al.  Assembly of emulsion droplets into fibers by microfluidic wet spinning , 2016 .

[32]  Joung-Sook Hong.  Aggregation of hydrophilic/hydrophobic montmorillonites at oil–water interface , 2016 .

[33]  Wei Li,et al.  Pickering emulsions stabilized by whey protein nanoparticles prepared by thermal cross-linking. , 2015, Colloids and surfaces. B, Biointerfaces.

[34]  Leif Bülow,et al.  Bacterial imprinting at Pickering emulsion interfaces. , 2014, Angewandte Chemie.

[35]  Thomas M Truskett,et al.  Modified montmorillonite clay microparticles for stable oil-in-seawater emulsions. , 2014, ACS applied materials & interfaces.

[36]  P. Tzeng,et al.  Improving the gas barrier property of clay-polymer multilayer thin films using shorter deposition times. , 2014, ACS applied materials & interfaces.

[37]  Scott L Cockroft,et al.  How much do van der Waals dispersion forces contribute to molecular recognition in solution? , 2013, Nature chemistry.

[38]  You-ming Li,et al.  Octadecenylsuccinic anhydride pickering emulsion stabilized by γ-methacryloxy propyl trimethoxysilane grafted montmorillonite , 2013 .

[39]  Hasmukh A. Patel,et al.  Montmorillonite as a drug delivery system: intercalation and in vitro release of timolol maleate. , 2009, International journal of pharmaceutics.

[40]  O. Ozdemir,et al.  Comparison of the adsorption characteristics of azo-reactive dyes on mezoporous minerals , 2004 .