Pickering multiphase materials using plant‐based cellulosic micro/nanoparticles

Liu, Wei; Pang, Bo; Zhang, Meng; Lv, Jiayi; Xu, Ting; Bai, Long; Cai, Xu‐Min; Yao, Shuangquan; Huan, Siqi; Si, Chuanling

doi:10.1002/agt2.486

Cited by 15 publications

(2 citation statements)

References 146 publications

(188 reference statements)

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“…Note that the wettability of intact nanocellulose (i.e., crystalline body) corresponds to the (200)β/(220)α hydrophobic edge plane . CNC-stabilized Pickering emulsions reported in the literature have been prepared by intensive homogenization or sonication techniques in which the size of droplets was much smaller (∼1 μm) than the emulsion droplets generated by the flow focusing device here (∼115 μm). The reduced size of dispersed droplets leads to a higher curvature and thus higher Laplace pressure, which is defined as the pressure difference between the inside and outside of a droplet.…”

Section: Resultsmentioning

confidence: 99%

“…19 However, the hydrophilicity of CNC limits their capability to stabilize W/O emulsions, 20 which are commonly generated in the EOR. To tailor the wettability of CNC for both oil and water phases and subsequently stabilize W/O emulsions, their surface has been modified with hydrophobic groups 21 via grafting alkylammonium groups 20 or diacylamine; 22 however, CNC surface modification with hydrophobic groups is insufficient to inhibit scale formation in multiphase media.…”

Section: Introductionmentioning

confidence: 99%

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Antiscaling Pickering Emulsions Enabled by Amphiphilic Hairy Cellulose Nanocrystals

Koshani,

Yeh,

Pitcher

et al. 2024

ACS Appl. Mater. Interfaces

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Nucleation and growth of sparingly soluble salts, referred to as scaling, has posed substantial challenges in industrial processes that deal with multiphase flows, including enhanced oil recovery (EOR). During crude oil extraction/recovery, seawater is injected into oil reservoirs and yields water-in-oil (W/O) emulsions that may undergo calcium carbonate (CaCO 3 ) scaling. Common antiscaling macromolecules and nanoparticles have adverse environmental impacts and/or are limited to functioning only in single-phase aqueous media. Here, we develop a novel antiscaling cellulose-based nanoparticle that enables scale-resistant Pickering emulsions. Cellulose fibrils are rationally nanoengineered to yield amphiphilic hairy cellulose nanocrystals (AmHCNC), bearing hydrophilic dicarboxylate groups and hydrophobic alkyl chains on disordered cellulose chains (hairs) protruding from nanocrystal ends. The unique chemical and structural properties of AmHCNC render them the first dual functional antiscaling and emulsion stabilizing nanoparticle. AmHCNC stabilize W/O Pickering emulsions at a concentration of 1.00 wt % for 1 week while inhibiting CaCO 3 scale formation up to 70% by mass at a supersaturation degree of ∼101 compared with the synthetic surfactant Span 80. To the best of our knowledge, this study presents the first biopolymer-based solution for the long-lasting scaling challenge in multiphase media, which may set the stage for developing sustainable scale-resistant multiphase flows in a broad spectrum of industrial sectors.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Antiscaling Pickering Emulsions Enabled by Amphiphilic Hairy Cellulose Nanocrystals

Koshani,

Yeh,

Pitcher

et al. 2024

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

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Lignocellulose‐Mediated Functionalization of Liquid Metals toward the Frontiers of Multifunctional Materials

Li,

Zhu,

et al. 2024

Advanced Materials

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Lignocellulose‐mediated liquid metal (LM) composites, as emerging functional materials, show tremendous potential for a variety of applications. The abundant hydroxyl, carboxyl, and other polar groups in lignocellulose facilitate the formation of strong chemical bonds with LM surfaces, enhancing wettability and adhesion for improved interface compatibility. Beyond serving as a supportive matrix, lignocellulose can be tailored to optimize the microstructure of the composites, adapting them for diverse applications. This review comprehensively summarizes the fundamental principles and recent advancements in lignocellulose‐mediated LM composites, highlighting the advantages of lignocellulose in composite fabrication, including facile synthesis, versatile interactions, and inherent functionalities. Key modulation strategies for LMs and innovative synthesis methods for functionalized lignocellulose composites are discussed. Furthermore, the roles and structure–performance relationships of these composites in electromagnetic shielding, flexible sensors, and energy storage devices are systematically summarized. Finally, the obstacles and prospective advancements pertaining to lignocellulose‐mediated LM composites are thoroughly scrutinized and deliberated upon. This review is expected to provide basic guidance for researchers to boost the popularity of LMs in diverse applications and provide useful references for design strategies of state‐of‐the‐art LMs.

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Advancing self‐healing soy protein hydrogel with dynamic Schiff base and metal‐ligand bonds for diabetic chronic wound recovery

Lan,

Dong,

Shi

et al. 2024

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To address the unique challenges of diabetic wound healing, wound dressings, particularly multifunctional hydrogels have garnered considerable interest. For the first time, a novel environmentally friendly soy protein‐based hydrogel is developed to accelerate the healing of diabetic chronic wounds. Specifically, this hydrogel framework is in direct formation through the dynamic Schiff base between oxidized guar gum and epigallocatechin‐3‐gallate (EGCG)‐modified soy protein isolate. Meantime, the addition of Ag+ enhances the cross‐linking of the hydrogel network by forming metal‐ligand bonds with the catechol groups in EGCG. Interestingly, the stretchability (up to 380%), swelling, and rheology properties of the hydrogel can be controlled by fine‐tuning the density of metal‐ligand bonds, endowing them with a high potential for precise matching. Additionally, various dynamic bonds endow hydrogel with excellent self‐healing ability, adhesiveness, and injectability. This hydrogel also exhibits good antibacterial properties, biocompatibility, and cell migration capabilities. Both in vivo and in vitro experiments demonstrated the outstanding anti‐inflammatory capacity of the hydrogel and its ability to modulate macrophage polarization. Consequently, the hydrogel has proven effective in promoting wound healing in a diabetic full‐thickness wound model through enhanced angiogenesis and collagen deposition. This eco‐friendly plant protein hydrogel offers a sustainable solution for wound care and environmental protection.

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Pickering multiphase materials using plant‐based cellulosic micro/nanoparticles

Cited by 15 publications

References 146 publications

Antiscaling Pickering Emulsions Enabled by Amphiphilic Hairy Cellulose Nanocrystals

Antiscaling Pickering Emulsions Enabled by Amphiphilic Hairy Cellulose Nanocrystals

Lignocellulose‐Mediated Functionalization of Liquid Metals toward the Frontiers of Multifunctional Materials

Advancing self‐healing soy protein hydrogel with dynamic Schiff base and metal‐ligand bonds for diabetic chronic wound recovery

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