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Jiang C, Meng Z. Natural shellac-based microcapsules as lipase carriers for recyclable efficient Pickering interfacial biocatalysis. Food Chem 2024; 460:140466. [PMID: 39032294 DOI: 10.1016/j.foodchem.2024.140466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Revised: 06/28/2024] [Accepted: 07/13/2024] [Indexed: 07/23/2024]
Abstract
Enzyme is an important class of catalyst. However, the efficiency of enzyme-catalyzed reactions is constrained by the limited contact between the enzyme and its substrate. In this study, to overcome this challenge, lipase-loaded microcapsules were prepared from natural shellac and nanoparticles using the emulsion template method. These microcapsules can perform dual roles as stabilizers and enzyme carriers to construct a water-in-oil Pickering interfacial biocatalytic system. The results showed that the hydrolytic conversion of the microcapsules could reach 90% within 20 min, which was significantly higher than that of the traditional biphasic system. The catalytic activity was influenced by the oil-to-water volume ratio and the microcapsule content. The microcapsules remained highly catalytic efficiency even after storage for three months or seven cycles of reuse. These microcapsules were prepared without the use of any cross-linkers or harsh solvents. This green and efficient catalytic system has great application prospects in the food industry.
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Affiliation(s)
- Cong Jiang
- State Key Laboratory of Food Science and Resources, School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, People's Republic of China
| | - Zong Meng
- State Key Laboratory of Food Science and Resources, School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, People's Republic of China.
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2
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Wang W, Yu Y, Wang M, Wang Y, Liu S, Xu J, Sun Z. Pickering Emulsion Promoted Interfacial Sequential Chemo-Biocatalytic Reaction for the Synthesis of Chiral Alcohols from Styrene. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 39315994 DOI: 10.1021/acsami.4c10461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/25/2024]
Abstract
Chemo-biocatalytic cascades have emerged as a promising approach in the realm of advanced synthesis. However, reconciling the incompatible reaction conditions among distinct catalytic species presents a significant challenge. Herein, we introduce an innovative solution using an emulsion system stabilized by Janus silica nanoparticles, which serve as a bridge for both chemo-catalysts and biocatalysts at the interface. The chemo-catalyst is securely anchored within a hydrophobic polymer matrix, ensuring its residence in an organic environment. Meanwhile, the negatively charged E. coli cells containing enzymes are attracted to the aqueous phase at the interface, facilitating their optimal positioning. We demonstrate the efficacy of this system through a two-step cascade reaction. Initially, the oxidation of styrene to acetophenone using palladium as a chemocatalyst achieves a 6-fold increase in yield compared to the control system. Subsequently, the reduction of achiral acetophenone to its chiral alcohol derivative presents a 17-fold yield enhancement relative to that of the control reaction. Importantly, our system exhibits versatility, accommodating a wide range of substrates for both individual and sequential reactions. This work not only validates the concept but also paves the way for the integration of chemo- and biocatalysts in the synthesis of a broader array of high-value chemical compounds.
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Affiliation(s)
- Weiqi Wang
- School of Pharmacy, Nantong University, 226001 Nantong, China
| | - Yuting Yu
- School of Pharmacy, Nantong University, 226001 Nantong, China
| | - Mengyao Wang
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, 310014 Hangzhou, China
| | - Yangxin Wang
- College of Materials Science and Engineering, Nanjing Tech University, 211816 Nanjing, China
| | - Shanqiu Liu
- College of Material Science and Engineering, Zhejiang University of Technology, 310014 Hangzhou, China
| | - Jian Xu
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, 310014 Hangzhou, China
| | - Zhiyong Sun
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, 310014 Hangzhou, China
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3
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Wang A, Ma Y, Zhao D. Pore engineering of Porous Materials: Effects and Applications. ACS NANO 2024; 18:22829-22854. [PMID: 39152943 DOI: 10.1021/acsnano.4c08708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/19/2024]
Abstract
Porous materials, characterized by their controllable pore size, high specific surface area, and controlled space functionality, have become cross-scale structures with microenvironment effects and multiple functions and have gained tremendous attention in the fields of catalysis, energy storage, and biomedicine. They have evolved from initial nanopores to multiscale pore-cavity designs with yolk-shell, multishells, or asymmetric structures, such as bottle-shaped, multichambered, and branching architectures. Various synthesis strategies have been developed for the interfacial engineering of porous structures, including bottom-up approaches by using liquid-liquid or liquid-solid interfaces "templating" and top-down approaches toward chemical tailoring of polymers with different cross-linking degrees, as well as interface transformation using the Oswald ripening, Kirkendall effect, or atomic diffusion and rearrangement methods. These techniques permit the design of functional porous materials with diverse microenvironment effects, such as the pore size effect, pore enrichment effect, pore isolation and synergistic effect, and pore local field enhancement effect, for enhanced applications. In this review, we delve into the bottom-up and top-down interfacial-oriented synthesis approaches of porous structures with advanced structures and microenvironment effects. We also discuss the recent progress in the applications of these collaborative effects and structure-activity relationships in the areas of catalysis, energy storage, electrochemical conversion, and biomedicine. Finally, we outline the persisting obstacles and prospective avenues in terms of controlled synthesis and functionalization of porous engineering. The perspectives proposed in this paper may contribute to promote wider applications in various interdisciplinary fields within the confined dimensions of porous structures.
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Affiliation(s)
- Aixia Wang
- College of Energy Materials and Chemistry, Inner Mongolia University, 235 West University Street, Hohhot, 010021, China
| | - Yuzhu Ma
- College of Energy Materials and Chemistry, Inner Mongolia University, 235 West University Street, Hohhot, 010021, China
| | - Dongyuan Zhao
- College of Energy Materials and Chemistry, Inner Mongolia University, 235 West University Street, Hohhot, 010021, China
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Laboratory of Advanced Materials, State Key Laboratory of Molecular Engineering of Polymers, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Fudan University, Shanghai, 200433, P. R. China
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4
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Cui H, Zhang Y, Liu S, Cao Y, Ma Q, Liu Y, Lin H, Li C, Xiao Y, Hassan SU, Shum HC. Thermo-responsive aqueous two-phase system for two-level compartmentalization. Nat Commun 2024; 15:6771. [PMID: 39117632 PMCID: PMC11310206 DOI: 10.1038/s41467-024-51043-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 07/26/2024] [Indexed: 08/10/2024] Open
Abstract
Hierarchical compartmentalization responding to changes in intracellular and extracellular environments is ubiquitous in living eukaryotic cells but remains a formidable task in synthetic systems. Here we report a two-level compartmentalization approach based on a thermo-responsive aqueous two-phase system (TR-ATPS) comprising poly(N-isopropylacrylamide) (PNIPAM) and dextran (DEX). Liquid membraneless compartments enriched in PNIPAM are phase-separated from the continuous DEX solution via liquid-liquid phase separation at 25 °C and shrink dramatically with small second-level compartments generated at the interface, resembling the structure of colloidosome, by increasing the temperature to 35 °C. The TR-ATPS can store biomolecules, program the spatial distribution of enzymes, and accelerate the overall biochemical reaction efficiency by nearly 7-fold. The TR-ATPS inspires on-demand, stimulus-triggered spatiotemporal enrichment of biomolecules via two-level compartmentalization, creating opportunities in synthetic biology and biochemical engineering.
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Affiliation(s)
- Huanqing Cui
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong (SAR), China
| | - Yage Zhang
- Advanced Biomedical Instrumentation Centre, Hong Kong Science Park, Shatin, New Territories, Hong Kong (SAR), China
- School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen University, 518055, Shenzhen, Guangdong, China
| | - Sihan Liu
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong (SAR), China
| | - Yang Cao
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong (SAR), China
| | - Qingming Ma
- School of Pharmacy, Qingdao University, 266071, Qingdao, China
| | - Yuan Liu
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong (SAR), China
- Advanced Biomedical Instrumentation Centre, Hong Kong Science Park, Shatin, New Territories, Hong Kong (SAR), China
| | - Haisong Lin
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong (SAR), China
- Advanced Biomedical Instrumentation Centre, Hong Kong Science Park, Shatin, New Territories, Hong Kong (SAR), China
| | - Chang Li
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong (SAR), China
| | - Yang Xiao
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong (SAR), China
- College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui, China
| | - Sammer Ul Hassan
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong (SAR), China
- Advanced Biomedical Instrumentation Centre, Hong Kong Science Park, Shatin, New Territories, Hong Kong (SAR), China
| | - Ho Cheung Shum
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong (SAR), China.
- Advanced Biomedical Instrumentation Centre, Hong Kong Science Park, Shatin, New Territories, Hong Kong (SAR), China.
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5
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Zou Y, Xia Y, Yan X. Effect of UV Top Coating Microcapsules on the Coating Properties of Fiberboard Surfaces. Polymers (Basel) 2024; 16:2098. [PMID: 39125123 PMCID: PMC11314576 DOI: 10.3390/polym16152098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2024] [Revised: 07/15/2024] [Accepted: 07/20/2024] [Indexed: 08/12/2024] Open
Abstract
The commonly used ultraviolet ray (UV) curing coatings have the characteristics of fast curing speed, high hardness, strong abrasion resistance, etc. However, the self-healing properties of UV coatings after being damaged still need to be improved. Self-healing microcapsules can alleviate this problem. The UV top coating itself has good properties, so it can be directly chosen as the core material of microcapsules. UV top coating microcapsules can be added to the UV top coating to increase the self-healing properties of the UV coating to achieve the purpose of better protection of the UV coating and fiberboards. UV top coating microcapsules were prepared and added in different contents to characterize the effect on the physical, chemical, and self-healing properties of the UV coating on a fiberboard surface. The 1#, 2#, and 3# UV top coating microcapsules that were prepared with emulsifier HLB values of 10.04, 10.88, and 11.72, respectively, were added to the UV top coating at contents of 2.0%, 4.0%, 6.0%, 8.0%, and 10.0%. The UV coatings were applied to the fiberboard using a method of two primers and two top coatings, in which no microcapsule was added in the primer, and were tested and analyzed. The results showed that when the content of microcapsules was greater than 6.0%, close to 8.0%, the excessive density of microcapsules produced stacking and extrusion between the microcapsules. As a result, the core material could not flow out smoothly when part of the microcapsule was ruptured. The outflow of the core material was not efficiently utilized, thus leading to a decrease in the self-healing rate. The 2# UV top coating microcapsules of 4.0% made the UV coatings reach the self-healing rate of 26.41%. The self-healing rate of the UV coatings prepared with the 3# UV top coating microcapsules with 6.0% was up to 26.58%. The UV coatings prepared with the 1# UV top coating microcapsules of 6.0% had the highest self-healing rate among the three groups, up to 27.32%. The UV coatings of this group had the best comprehensive properties with a chromatic aberration ΔE of 4.08, a gloss of 1.10 GU, a reflectance of 17.13%, an adhesion grade of 3, a hardness of 3H, a grade 3 of impact resistance, and a roughness of 1.677 μm. An investigation of the UV coatings on fiberboard surfaces with the content of UV top coating microcapsules can provide support for the optimization of the self-healing properties of UV coatings and can also provide innovative ideas for the preparation of the self-healing coatings on fiberboard surfaces.
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Affiliation(s)
- Yuming Zou
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China; (Y.Z.); (Y.X.)
- College of Furnishings and Industrial Design, Nanjing Forestry University, Nanjing 210037, China
| | - Yongxin Xia
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China; (Y.Z.); (Y.X.)
- College of Furnishings and Industrial Design, Nanjing Forestry University, Nanjing 210037, China
| | - Xiaoxing Yan
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China; (Y.Z.); (Y.X.)
- College of Furnishings and Industrial Design, Nanjing Forestry University, Nanjing 210037, China
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Nie G, Wei D, Ding Z, Ge L, Guo R. Controllable enzymatic hydrolysis in reverse Janus emulsion microreactors. J Colloid Interface Sci 2024; 663:591-600. [PMID: 38428116 DOI: 10.1016/j.jcis.2024.02.142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 02/05/2024] [Accepted: 02/18/2024] [Indexed: 03/03/2024]
Abstract
HYPOTHESIS The key feature of living cells is multicompartmentalization for enzymatic reactions. Artificial cell-like multicompartments with micro domains are appealing to mimic the biological counterparts. In addition, establishing a sustainable, efficient, and controllable reaction system for enzymatic hydrolysis is imperative for the production of natural fatty acids from animal and plant-based fats. EXPERIMENTS Reverse Janus emulsion microreactors, i.e. (W1 + W2)/O, is constructed through directly using natural fats as continuous phase and aqueous two-phase solutions (ATPS) as inner phases. Enzyme is confined in the compartmented aqueous droplets dominated by the salt of Na2SO4 and polyethylene glycol (PEG). Enzyme catalyzed ester hydrolysis employed as a model reaction is performed under the conditions of agitation-free and mild temperature. Regulation of reaction kinetics is investigated by diverse droplet topology, composition of inner ATPS, and on-demand emulsification. FINDINGS Excellent enzymatic activity toward hydrolysis of plant and animal oils achieves 88.5 % conversion after 3 h. Compartmented micro domains contribute to condense and organize the enzymes spatially. Timely removal of the products away from reaction sites of oil/water interface "pushed" the reaction forward. Distribution and transfer of enzyme in two aqueous lobes provide extra freedom in the regulation of hydrolysis kinetics, with equilibrium conversion controlled freely from 14.5 % to 88.5 %. Reversible "open" and "shut" of hydrolysis is acheived by on-demand emulsification and spontaneous demulsification. This paper paves the way to advancing progress in compartmentalized emulsion as a sustainable and high-efficiency platform for biocatalytic applications.
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Affiliation(s)
- Guangju Nie
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Duo Wei
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Ziyu Ding
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Lingling Ge
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China.
| | - Rong Guo
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China.
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7
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Wei D, Yin N, Xu D, Ge L, Gao Z, Zhang Y, Guo R. Complex Droplet Microreactor for Highly Efficient and Controllable Esterification and Cascade Reactions. CHEMSUSCHEM 2024:e202400279. [PMID: 38705858 DOI: 10.1002/cssc.202400279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 04/15/2024] [Accepted: 05/03/2024] [Indexed: 05/07/2024]
Abstract
A highly efficient complex emulsion microreactor has been successfully developed for multiphasic water-labile reactions, providing a powerful platform for atom economy and spatiotemporal control of reaction kinetics. Complex emulsions, composing a hydrocarbon phase (H) and a fluorocarbon phase (F) dispersed in an aqueous phase (W), are fabricated in batch scale with precisely controlled droplet morphologies. A biphasic esterification reaction between 2-bromo-1,2-diphenylethane-1-ol (BPO) and perfluoro-heptanoic acid (PFHA) is chosen as a reversible and water-labile reaction model. The conversion reaches up to 100 % under mild temperature without agitation, even with nearly equivalent amounts of reactants. This efficiency surpasses all reported single emulsion microreactors, i. e., 84~95 %, stabilized by various emulsifiers with different catalysts, which typically necessitate continuous stirring, a high excess of one reactant, and/or extended reaction time. Furthermore, over 3 times regulation threshold in conversion rate is attained by manipulating the droplet morphologies, including size and topology, e. g., transition from completely engulfed F/H/W double to partially engulfed (F+H)/W Janus. Addition-esterification, serving as a model for triple phasic cascade reaction, is also successfully implemented under agitating-free and mild temperature with controlled reaction kinetics, demonstrating the versatility and effectiveness of the complex emulsion microreactor.
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Affiliation(s)
- Duo Wei
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225009, People's Republic of China
| | - Nuoqing Yin
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225009, People's Republic of China
| | - Dehua Xu
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225009, People's Republic of China
| | - Lingling Ge
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225009, People's Republic of China
| | - Zihan Gao
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225009, People's Republic of China
| | - Yanyan Zhang
- Testing Center, Yangzhou University, Yangzhou, 225009, People's Republic of China
| | - Rong Guo
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225009, People's Republic of China
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Yin C, Chen X, Zhang H, Xue Y, Dong H, Mao X. Pickering emulsion biocatalysis: Bridging interfacial design with enzymatic reactions. Biotechnol Adv 2024; 72:108338. [PMID: 38460741 DOI: 10.1016/j.biotechadv.2024.108338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Revised: 01/21/2024] [Accepted: 03/05/2024] [Indexed: 03/11/2024]
Abstract
Non-homogeneous enzyme-catalyzed systems are more widely used than homogeneous systems. Distinguished from the conventional biphasic approach, Pickering emulsion stabilized by ultrafine solid particles opens up an innovative platform for biocatalysis. Their vast specific surface area significantly enhances enzyme-substrate interactions, dramatically increasing catalytic efficiency. This review comprehensively explores various aspects of Pickering emulsion biocatalysis, provides insights into the multiple types and mechanisms of its catalysis, and offers strategies for material design, enzyme immobilization, emulsion formation control, and reactor design. Characterization methods are summarized for the determination of drop size, emulsion type, interface morphology, and emulsion potential. Furthermore, recent reports on the design of stimuli-responsive reaction systems are reviewed, enabling the simple control of demulsification. Moreover, the review explores applications of Pickering emulsion in single-step, cascade, and continuous flow reactions and outlines the challenges and future directions for the field. Overall, we provide a review focusing on Pickering emulsions catalysis, which can draw the attention of researchers in the field of catalytic system design, further empowering next-generation bioprocessing.
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Affiliation(s)
- Chengmei Yin
- State Key Laboratory of Marine Food Processing and Safety Control, College of Food Science and Engineering, Ocean University of China, Qingdao 266404, PR China
| | - Xiangyao Chen
- State Key Laboratory of Marine Food Processing and Safety Control, College of Food Science and Engineering, Ocean University of China, Qingdao 266404, PR China
| | - Haiyang Zhang
- State Key Laboratory of Marine Food Processing and Safety Control, College of Food Science and Engineering, Ocean University of China, Qingdao 266404, PR China
| | - Yong Xue
- State Key Laboratory of Marine Food Processing and Safety Control, College of Food Science and Engineering, Ocean University of China, Qingdao 266404, PR China
| | - Hao Dong
- State Key Laboratory of Marine Food Processing and Safety Control, College of Food Science and Engineering, Ocean University of China, Qingdao 266404, PR China; Qingdao Key Laboratory of Food Biotechnology, Qingdao 266404, PR China; Key Laboratory of Biological Processing of Aquatic Products, China National Light Industry, Qingdao 266404, PR China.
| | - Xiangzhao Mao
- State Key Laboratory of Marine Food Processing and Safety Control, College of Food Science and Engineering, Ocean University of China, Qingdao 266404, PR China; Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, PR China; Qingdao Key Laboratory of Food Biotechnology, Qingdao 266404, PR China; Key Laboratory of Biological Processing of Aquatic Products, China National Light Industry, Qingdao 266404, PR China
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9
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Xia C, Xu Z, Xu M, Zhang C, Xu B, Liu B, Yan X, Zheng Z, Zhang R. Body temperature responsive capsules templated from Pickering emulsion for thermally triggered release of β-carotene. Int J Biol Macromol 2024; 266:130940. [PMID: 38521331 DOI: 10.1016/j.ijbiomac.2024.130940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 03/09/2024] [Accepted: 03/14/2024] [Indexed: 03/25/2024]
Abstract
In recent years, functional foods with lipophilic nutraceutical ingredients are gaining more and more attention because of its potential healthy and commercial value, and developing of various bioderived food-grade particles for use in fabrication of Pickering emulsion has attracted great attentions. Herein, the bio-originated sodium caseinate-lysozyme (Cas-Lyz) complex particles were firstly designed to be used as a novel interfacial emulsifier for Pickering emulsions. Pickering emulsions of various food oils were all successfully stabilized by the Cas-Lyz particles without addition of any synthetic surfactants, while the fluorescence microscopy and SEM characterizations clearly evidenced Cas-Lyz particles were attached on the surface of emulsion droplets. Additionally, the Cas-Lyz particles stabilized emulsion can also be used to encapsulate the β-carotene-loaded soybean oil, suggestion a potential method to carry lipophilic bioactive ingredients in an aqueous formulation for food, cosmetic and medical industry. At last, we present a Pickering emulsion strategy that utilizes biocompatible, edible and body temperature-responsive lard oil as the core material in microcapsules, which can achieve hermetic sealing and physiological temperature-triggered release of model nutraceutical ingredient (β-carotene).
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Affiliation(s)
- Chunmiao Xia
- Anhui Laboratory of Clean Energy Materials and Chemistry for Sustainable Conversion of Natural Resources, School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu 241000, China.
| | - Zihui Xu
- Anhui Laboratory of Clean Energy Materials and Chemistry for Sustainable Conversion of Natural Resources, School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu 241000, China
| | - Maodong Xu
- Anhui Laboratory of Clean Energy Materials and Chemistry for Sustainable Conversion of Natural Resources, School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu 241000, China
| | - Cuige Zhang
- Anhui Laboratory of Clean Energy Materials and Chemistry for Sustainable Conversion of Natural Resources, School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu 241000, China
| | - Bo Xu
- Anhui Laboratory of Clean Energy Materials and Chemistry for Sustainable Conversion of Natural Resources, School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu 241000, China
| | - Benhai Liu
- Anhui Laboratory of Clean Energy Materials and Chemistry for Sustainable Conversion of Natural Resources, School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu 241000, China
| | - Xin Yan
- Anhui Laboratory of Clean Energy Materials and Chemistry for Sustainable Conversion of Natural Resources, School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu 241000, China
| | - Zhenan Zheng
- Fujian Province University Key Laboratory of Modern Analytical Science and Separation Technology, College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Zhangzhou 363000, China
| | - Rongli Zhang
- Anhui Laboratory of Clean Energy Materials and Chemistry for Sustainable Conversion of Natural Resources, School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu 241000, China.
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10
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Li X, Zhao D, Wang Y, Huang H. Droplet-based cell-laden microgels for high-throughput analysis. Trends Biotechnol 2024; 42:397-401. [PMID: 37953082 DOI: 10.1016/j.tibtech.2023.10.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 10/21/2023] [Accepted: 10/24/2023] [Indexed: 11/14/2023]
Abstract
Cell-laden droplet microfluidics has revolutionized bulk biochemical analysis by offering compartmentalized microreactors for individual cells, but downstream operations of regular aqueous droplets are limited. Hydrogel matrix can provide a rigid scaffold for long-term culture of eukaryotic and prokaryotic cells, and can support several manipulations, facilitating subsequent high-throughput analysis of cellular heterogeneity.
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Affiliation(s)
- Xiang Li
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, 210046, China
| | - Danshan Zhao
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, 210046, China
| | - Yuetong Wang
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, 210046, China.
| | - He Huang
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, 210046, China.
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11
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Zou H, Li Q, Zhang R, Xiong Z, Li B, Wang J, Wang R, Fang Q, Yang H. Amphiphilic Covalent Organic Framework Nanoparticles for Pickering Emulsion Catalysis with Size Selectivity. Angew Chem Int Ed Engl 2024; 63:e202314650. [PMID: 38296796 DOI: 10.1002/anie.202314650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 01/08/2024] [Accepted: 01/31/2024] [Indexed: 02/02/2024]
Abstract
Exploiting advanced amphiphilic solid catalysts is crucial to the development of Pickering emulsion catalysis. Herein, covalent organic framework (COF) nanoparticles constructed with highly hydrophobic monomers as linkers were found to show superior amphiphilicity and they were then developed as a new class of solid emulsifiers for Pickering emulsion catalysis. Employing amphiphilic COFs as solid emulsifiers, Pickering emulsions with controllable emulsion type and droplet sizes were obtained. COF materials have also been demonstrated to serve as porous surface coatings to replace traditional surface modifications for stabilizing Pickering emulsions. After implanting Pd nanoparticles into amphiphilic COFs, the obtained catalyst displayed a 3.9 times higher catalytic efficiency than traditional amphiphilic solid catalysts with surface modifications in the biphasic oxidation reaction of alcohols. Such an enhanced activity was resulted from the high surface area and regular porous structure of COFs. More importantly, because of their tunable pore diameters, Pickering emulsion catalysis with remarkable size selectivity was achieved. This work is the first example that COFs were applied in Pickering emulsion catalysis, providing a platform for exploring new frontiers of Pickering emulsion catalysis.
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Affiliation(s)
- Houbing Zou
- Shanxi Key Laboratory of Coal-based Value-added Chemicals Green Catalysis Synthesis, School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, 030006, China
- Shanxi Research Institute of Huairou Laboratory, Taiyuan, 030032, China
- Engineering Research Center of the Ministry of Education for Fine Chemicals, Shanxi University, Taiyuan, 030006, China
| | - Qibiao Li
- Shanxi Key Laboratory of Coal-based Value-added Chemicals Green Catalysis Synthesis, School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, 030006, China
| | - Rongyan Zhang
- Shanxi Key Laboratory of Coal-based Value-added Chemicals Green Catalysis Synthesis, School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, 030006, China
| | - Zeshan Xiong
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun, 130012, China
| | - Binghua Li
- Shanxi Key Laboratory of Coal-based Value-added Chemicals Green Catalysis Synthesis, School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, 030006, China
| | - Junhao Wang
- Institute of Crystalline Materials, Shanxi University, Taiyuan, 030006, China
| | - Runwei Wang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun, 130012, China
| | - Qianrong Fang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun, 130012, China
| | - Hengquan Yang
- Shanxi Key Laboratory of Coal-based Value-added Chemicals Green Catalysis Synthesis, School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, 030006, China
- Shanxi Research Institute of Huairou Laboratory, Taiyuan, 030032, China
- Engineering Research Center of the Ministry of Education for Fine Chemicals, Shanxi University, Taiyuan, 030006, China
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12
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Wang Z, Feng N, Zhou Y, Cheng X, Zhou C, Ma A, Wang Q, Li Y, Chen Y. Mesophilic Argonaute-Mediated Polydisperse Droplet Biosensor for Amplification-Free, One-Pot, and Multiplexed Nucleic Acid Detection Using Deep Learning. Anal Chem 2024; 96:2068-2077. [PMID: 38259216 DOI: 10.1021/acs.analchem.3c04426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
Detection of nucleic acids from a single multiplexed and amplification-free test is critical for ensuring food safety, clinical diagnostics, and environmental monitoring. In this study, we introduced a mesophilic Argonaute protein from Clostridium butyricum (CbAgo), which exhibits nucleic acid endonuclease activity, to achieve a programmable, amplification-free system (PASS) for rapid nucleic acid quantification at ambient temperatures in one pot. By using CbAgo-mediated binding with specific guide DNA (gDNA) and subsequent targeted cleavage of wild-type target DNAs complementary to gDNA, PASS can detect multiple foodborne pathogen DNA (<102 CFU/mL) simultaneously. The fluorescence signals were then transferred to polydisperse emulsions and analyzed by using deep learning. This simplifies the process and increases the suitability of polydisperse emulsions compared to traditional digital PCR, which requires homogeneous droplets for accurate detection. We believe that PASS has the potential to become a next-generation point-of-care digital nucleic acid detection method.
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Affiliation(s)
- Zhipan Wang
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, Hubei, China
| | - Niu Feng
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, Hubei, China
| | - Yanan Zhou
- State Key Laboratory of Agricultural Microbiology and College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, Hubei, China
| | - Xinrui Cheng
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, Hubei, China
| | - Cuiyun Zhou
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, Hubei, China
| | - Aimin Ma
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, Hubei, China
| | - Qinyu Wang
- Department of Computer Science and Technology, Wuhan University of Science and Technology, Wuhan 430000, Hubei China
| | - Yingjun Li
- State Key Laboratory of Agricultural Microbiology and College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, Hubei, China
| | - Yiping Chen
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, Hubei, China
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13
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Xie Z, Atherton TJ. Jamming on convex deformable surfaces. SOFT MATTER 2024; 20:1070-1078. [PMID: 38206105 DOI: 10.1039/d2sm01608g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2024]
Abstract
Jamming is a fundamental transition that governs the behavior of particulate media, including sand, foams and dense suspensions. Upon compression, such media change from freely flowing to a disordered, marginally stable solid that exhibits non-Hookean elasticity. While the jamming process is well established for fixed geometries, the nature and dynamics of jamming for a diverse class of soft materials and deformable substrates, including emulsions and biological matter, remains unknown. Here we propose a new scenario, metric jamming, where rigidification occurs on a surface that has been deformed from its ground state. Unlike classical jamming processes that exhibit discrete mechanical transitions, surprisingly we find that metric jammed states possess mechanical properties continuously tunable between those of classically jammed and conventional elastic media. The compact and curved geometry significantly alters the vibrational spectra of the structures relative to jamming in flat Euclidean space, and metric jammed systems also possess new types of vibrational mode that couple particle and shape degrees of freedom. Our work provides a theoretical framework that unifies our understanding of solidification processes that take place on deformable media and lays the groundwork to exploit jamming for the control and stabilization of shape in self-assembly processes.
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Affiliation(s)
- Zhaoyu Xie
- Department of Physics & Astronomy, Tufts University, 574 Boston Ave, Medford, MA 02155, USA.
| | - Timothy J Atherton
- Department of Physics & Astronomy, Tufts University, 574 Boston Ave, Medford, MA 02155, USA.
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14
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Wu J, Fang D, Zhou Y, Gao G, Zeng J, Zeng Y, Zheng H. Multifunctional droplet handling on surface-charge-graphic-decorated porous papers. LAB ON A CHIP 2024; 24:594-603. [PMID: 38175166 DOI: 10.1039/d3lc00806a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
Developing a fluidic platform that combines high-throughput with reconfigurability is essential for a wide range of cutting-edge applications, but achieving both capabilities simultaneously remains a significant challenge. Herein, we propose a novel and unique method for droplet manipulation via drawing surface charge graphics on electrode-free papers in a contactless way. We find that opposite charge graphics can be written and retained on the surface layer of porous insulating paper by a controlled charge depositing method. The retained charge graphics result in high-resolution patterning of electrostatic potential wells (EPWs) on the hydrophobic porous surface, allowing for digital and high-throughput droplet handling. Since the charge graphics can be written/projected dynamically and simultaneously in large areas, allowing for on-demand and real-time reconfiguration of EPWs, we are able to develop a charge-graphic fluidic platform with both high reconfigurability and high throughput. The advantages and application potential of the platform have been demonstrated in chemical detection and dynamically controllable fluidic networks.
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Affiliation(s)
- Jiayao Wu
- The Institute of Technological Sciences, Wuhan University, Wuhan 430072, China.
| | - Duokui Fang
- Key Laboratory of Transients in Hydraulic Machinery, Ministry of Education, Wuhan University, Wuhan 430072, China
- School of Power and Mechanical Engineering, Wuhan University, Wuhan 430072, China
| | - Yifan Zhou
- Key Laboratory of Transients in Hydraulic Machinery, Ministry of Education, Wuhan University, Wuhan 430072, China
- School of Power and Mechanical Engineering, Wuhan University, Wuhan 430072, China
| | - Ge Gao
- Key Laboratory of Transients in Hydraulic Machinery, Ministry of Education, Wuhan University, Wuhan 430072, China
- School of Power and Mechanical Engineering, Wuhan University, Wuhan 430072, China
| | - Ji Zeng
- Key Laboratory of Transients in Hydraulic Machinery, Ministry of Education, Wuhan University, Wuhan 430072, China
- School of Power and Mechanical Engineering, Wuhan University, Wuhan 430072, China
| | - Yubin Zeng
- School of Power and Mechanical Engineering, Wuhan University, Wuhan 430072, China
| | - Huai Zheng
- The Institute of Technological Sciences, Wuhan University, Wuhan 430072, China.
- Key Laboratory of Transients in Hydraulic Machinery, Ministry of Education, Wuhan University, Wuhan 430072, China
- School of Power and Mechanical Engineering, Wuhan University, Wuhan 430072, China
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15
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Yang N, Kang Y, Cong Y, Wang X, Yao C, Wang S, Li L. Controllable Gold Nanocluster-Emulsion Interface for Direct Cell Penetration and Photothermal Killing. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2208349. [PMID: 36271742 DOI: 10.1002/adma.202208349] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 10/06/2022] [Indexed: 06/16/2023]
Abstract
In the view of their ability to be uptaken by cells, colloidal particles can exert diverse physiological effects and are promising vehicles for the intracellular delivery of biologically active substances. Given that the modulation of biomaterial interfaces greatly facilitates the prediction and control of the corresponding cellular responses, the interfacial behavior of hydrophobic dye-modified gold (Au) nanoclusters (Au NCs) is rationally designed to develop Au NC-containing emulsions and control their biointerfacial interactions with cell membranes. The observed biological performance is indicative of a physical penetration mechanism. The amphiphilic Au NCs decrease the interfacial energy of two immiscible liquids and hinder droplet coalescence to facilitate the formation of emulsions thermodynamically stabilized by dipole-dipole and hydrophobic interactions. Moreover, the amphiphilic Au NCs are localized on the emulsion droplet surface and form segregated interfacial microdomains that adapt to the membrane structure and facilitate the traverse of the emulsions across the cell membrane via direct penetration. Fast penetration coupled with excellent photophysical performance endows the emulsions with multifluorescence tracing and efficient photothermal killing capabilities. The successful change of the interaction mode between NCs and biological objects and the provision of a universal formulation to modulate biointerfacial interactions are expected to inspire new bioapplications.
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Affiliation(s)
- Ning Yang
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, P. R. China
| | - Yuetong Kang
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, P. R. China
| | - Yujie Cong
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, P. R. China
| | - Xiaoyu Wang
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, P. R. China
| | - Chuang Yao
- Key Laboratory of Extraordinary Bond Engineering and Advanced Materials Technology (EBEAM) Chongqing, Yangtze Normal University, Chongqing, 408100, P. R. China
| | - Shu Wang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Lidong Li
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, P. R. China
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16
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Zhou Y, He M, Zhang H, Liu B, Sun C, Han Z, Duan X. Pinch-off droplet generator using microscale gigahertz acoustics. LAB ON A CHIP 2023; 23:4860-4867. [PMID: 37867322 DOI: 10.1039/d3lc00515a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2023]
Abstract
The generation and dispensing of microdroplets is a vital process in various fields such as biomedicine, medical diagnosis and chemistry. However, most methods still require the structures of nozzles or microchannels to assist droplet generation, which leads to limitations on system flexibility and restrictions on the size range of the generated droplets. In this paper, we propose a nozzle-free acoustic-based method for generating droplets using a gigahertz (GHz) bulk acoustic wave (BAW). Unlike most of the acoustofluidic approaches, the proposed method produces the droplet by pinching-off the liquid column generated by the acoustic body force at the oil-water interface. Benefitting from the focused acoustic energy and small footprint of the device, four orders of magnitude (ranging from 2 μm to 1800 μm) of droplet size could be produced by controlling the working time and power of the device. We also demonstrated cell encapsulation in the droplet and a high cell viability was achieved. The proposed acoustic-based droplet generation method exhibits capacity for generating droplets with a wide size range, versatility toward different viscosities, as well as biocompatibility for handling viable samples, which shows potential in miniaturization and scalability.
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Affiliation(s)
- Yangchao Zhou
- State Key Laboratory of Precision Measuring Technology and Instruments, College of Precision Instruments and Opto-electronics Engineering, Tianjin University, Tianjin 300072, China
| | - Meihang He
- State Key Laboratory of Precision Measuring Technology and Instruments, College of Precision Instruments and Opto-electronics Engineering, Tianjin University, Tianjin 300072, China
| | - Haitao Zhang
- State Key Laboratory of Precision Measuring Technology and Instruments, College of Precision Instruments and Opto-electronics Engineering, Tianjin University, Tianjin 300072, China
| | - Bohua Liu
- State Key Laboratory of Precision Measuring Technology and Instruments, College of Precision Instruments and Opto-electronics Engineering, Tianjin University, Tianjin 300072, China
| | - Chongling Sun
- State Key Laboratory of Precision Measuring Technology and Instruments, College of Precision Instruments and Opto-electronics Engineering, Tianjin University, Tianjin 300072, China
| | - Ziyu Han
- State Key Laboratory of Precision Measuring Technology and Instruments, College of Precision Instruments and Opto-electronics Engineering, Tianjin University, Tianjin 300072, China
| | - Xuexin Duan
- State Key Laboratory of Precision Measuring Technology and Instruments, College of Precision Instruments and Opto-electronics Engineering, Tianjin University, Tianjin 300072, China
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17
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Wang H, Zhang H, Wu Q, Zhang B, Zhang Z, Rao X. Pickering Emulsions and Viscoelastic Solutions Constructed by a Rosin-Based CO 2-Responsive Surfactant. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:15653-15664. [PMID: 37856252 DOI: 10.1021/acs.langmuir.3c02085] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2023]
Abstract
Designing stimulus-switch viscoelastic solutions and Pickering emulsions with reversible CO2-responsive behavior remains a challenge. A rosin-based CO2-responsive surfactant, N-cetyl-maleimidepimaric acid N,N-dimethylenediamide (C16MPAN), was synthesized and used to prepare CO2-triggered viscoelastic solutions and Pickering emulsions. This surfactant exhibited excellent CO2-responsive performance in water and formed a viscoelastic solution. This viscoelastic system was investigated by dynamic light scattering (DLS), rheology, and cryogenic transmission electron microscopy (Cory-TEM). The shear viscosity of the system increased by 3-4 orders of magnitude after bubbling with CO2 and a large number of elongated, flexible, tubular wormlike micelles were observed. Further, Pickering emulsions were prepared by C16MPAN+ synergistically with cellulose nanocrystals (CNCs), whose stability and switchability were investigated via adsorption isotherm, droplet size, contact angle, and macroscopic photographs. C16MPAN+ was adsorbed with CNCs to form mechanical barriers at the oil-water interface, making the emulsion stable for at least three months, and desorption from CNCs enabled emulsion breaking. The cycle could be switched reversibly multiple times and the particle size distribution of emulsion was basically the same. This work enriches the application of biomass resources in intelligent responsive materials.
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Affiliation(s)
- Hanwen Wang
- Academy of Advanced Carbon Conversion Technology, Huaqiao University, Xiamen 361021, Fujian, China
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, Fujian, China
| | - Hangyuan Zhang
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, Fujian, China
| | - Qian Wu
- Academy of Advanced Carbon Conversion Technology, Huaqiao University, Xiamen 361021, Fujian, China
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, Fujian, China
| | - Boyi Zhang
- Academy of Advanced Carbon Conversion Technology, Huaqiao University, Xiamen 361021, Fujian, China
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, Fujian, China
| | - Zehua Zhang
- Academy of Advanced Carbon Conversion Technology, Huaqiao University, Xiamen 361021, Fujian, China
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, Fujian, China
| | - Xiaoping Rao
- Academy of Advanced Carbon Conversion Technology, Huaqiao University, Xiamen 361021, Fujian, China
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, Fujian, China
- Fujian Provincial Key Laboratory of Biomass Low-Carbon Conversion, Huaqiao University, Xiamen 361021, Fujian, China
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18
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Guan X, Cheng G, Ho YP, Binks BP, Ngai T. Light-Driven Spatiotemporal Pickering Emulsion Droplet Manipulation Enabled by Plasmonic Hybrid Microgels. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2304207. [PMID: 37490563 DOI: 10.1002/smll.202304207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 07/13/2023] [Indexed: 07/27/2023]
Abstract
The past decades have witnessed the development of various stimuli-responsive materials with tailored functionalities, enabling droplet manipulation through external force fields. Among different strategies, light exhibits excellent flexibility for contactless control of droplets, particularly in three-dimensional space. Here, we present a facile synthesis of plasmonic hybrid microgels based on the electrostatic heterocoagulation between cationic microgels and anionic Au nanoparticles. The hybrid microgels are effective stabilizers of oil-in-water Pickering emulsions. In addition, the laser irradiation on Au nanoparticles creats a "cascade effect" to thermally responsive microgels, which triggers a change in microgel wettability, resulting in microgel desorption and emulsion destabilization. More importantly, the localized heating generated by a focused laser induces the generation of a vapor bubble inside oil droplets, leading to the formation of a novel air-in-oil-in-water (A/O/W) emulsion. These A/O/W droplets are able to mimic natural microswimmers in an aqueous environment by tracking the motion of a laser spot, thus achieving on-demand droplet merging and chemical communication between isolated droplets. Such proposed systems are expected to extend the applications of microgel-stabilized Pickering emulsions for substance transport, programmed release and controlled catalytic reactions.
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Affiliation(s)
- Xin Guan
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong, China
| | - Guangyao Cheng
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong, China
| | - Yi-Ping Ho
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong, China
- Centre for Novel Biomaterials, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong, China
- Hong Kong Branch of CAS Center for Excellence in Animal Evolution and Genetics, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong, China
- The Ministry of Education Key Laboratory of Regeneration Medicine, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong, China
- State Key Laboratory of Marine Pollution, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Bernard P Binks
- Department of Chemistry, University of Hull, Hull, HU6 7RX, UK
| | - To Ngai
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong, China
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19
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Let S, K Dam G, Fajal S, Ghosh SK. Organic porous heterogeneous composite with antagonistic catalytic sites as a cascade catalyst for continuous flow reaction. Chem Sci 2023; 14:10591-10601. [PMID: 37799985 PMCID: PMC10548525 DOI: 10.1039/d3sc03525e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 09/04/2023] [Indexed: 10/07/2023] Open
Abstract
One-pot cascade catalytic reactions easily allow the circumvention of pitfalls of traditional catalytic reactions, such as multi-step syntheses, longer duration, waste generation, and high operational cost. Despite advances in this area, the facile assimilation of chemically antagonistic bifunctional sites in close proximity inside a well-defined scaffold via a process of rational structural design still remains a challenge. Herein, we report the successful fusion of incompatible acid-base active sites in an ionic porous organic polymer (iPOP), 120-MI@OH, via a simple ion-exchange strategy. The fabricated polymer catalyst, 120-MI@OH, performed exceedingly well as a cascade acid-base catalyst in a deacetylation-Knoevenagel condensation reaction under mild and eco-friendly continuous flow conditions. In addition, the abundance of spatially isolated distinct acidic (imidazolium cations) and basic (hydroxide anions) catalytic sites give 120-MI@OH its excellent solid acid and base catalytic properties. To demonstrate the practical relevance of 120-MI@OH, stable millimeter-sized spherical composite polymer bead microstructures were synthesized and utilized in one-pot cascade catalysis under continuous flow, thus illustrating promising catalytic activity. Additionally, the heterogeneous polymer catalyst displayed good recyclability, scalability, as well as ease of fabrication. The superior catalytic activity of 120-MI@OH can be rationalized by its unique structure that reconciles close proximity of antagonistic catalytic sites that are sufficiently isolated in space.
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Affiliation(s)
- Sumanta Let
- Department of Chemistry, Indian Institute of Science Education and Research Dr Homi Bhabha Road, Pashan Pune 411008 India +91 20 2590 8076
| | - Gourab K Dam
- Department of Chemistry, Indian Institute of Science Education and Research Dr Homi Bhabha Road, Pashan Pune 411008 India +91 20 2590 8076
| | - Sahel Fajal
- Department of Chemistry, Indian Institute of Science Education and Research Dr Homi Bhabha Road, Pashan Pune 411008 India +91 20 2590 8076
| | - Sujit K Ghosh
- Department of Chemistry, Indian Institute of Science Education and Research Dr Homi Bhabha Road, Pashan Pune 411008 India +91 20 2590 8076
- Centre for Water Research, Indian Institute of Science Education and Research Dr Homi Bhabha Road, Pashan Pune 411008 India
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20
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Hao R, Zhang M, Tian D, Lei F, Qin Z, Wu T, Yang H. Bottom-Up Synthesis of Multicompartmentalized Microreactors for Continuous Flow Catalysis. J Am Chem Soc 2023; 145:20319-20327. [PMID: 37676729 DOI: 10.1021/jacs.3c04886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/09/2023]
Abstract
The bottom-up assembly of biomimetic multicompartmentalized microreactors for use in continuous flow catalysis remains a grand challenge because of the structural instability or the absence of liquid microenvironments to host biocatalysts in the existing systems. Here, we address this challenge using a strategy that combines stepwise Pickering emulsification with interface-confined cross-linking. Our strategy allows for the fabrication of robust multicompartmentalized liquid-containing microreactors (MLMs), whose interior architectures can be exquisitely tuned in a bottom-up fashion. With this strategy, enzymes and metal catalysts can be separately confined in distinct subcompartments of MLMs for processing biocatalysis or chemo-enzymatic cascade reactions. As exemplified by the enzyme-catalyzed kinetic resolution of racemic alcohols, our systems exhibit a durability of 2000 h with 99% enantioselectivity. Another Pd-enzyme-cocatalyzed dynamic kinetic resolution of amines further demonstrates the versatility and long-term operational stability of our MLMs in continuous flow cascade catalysis. This study opens up a new way to design efficient biomimetic multicompartmental microreactors for practical applications.
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Affiliation(s)
- Ruipeng Hao
- Shanxi Key Laboratory of Coal-based Value-added Chemicals Green Catalysis Synthesis, School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
| | - Ming Zhang
- Shanxi Key Laboratory of Coal-based Value-added Chemicals Green Catalysis Synthesis, School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
| | - Danping Tian
- Shanxi Key Laboratory of Coal-based Value-added Chemicals Green Catalysis Synthesis, School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
| | - Fu Lei
- Shanxi Key Laboratory of Coal-based Value-added Chemicals Green Catalysis Synthesis, School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
| | - Zhiqin Qin
- Shanxi Key Laboratory of Coal-based Value-added Chemicals Green Catalysis Synthesis, School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
| | - Tao Wu
- College of Chemistry and Materials Science, Guangdong Provincial Key Laboratory of Functional Supramolecular Coordination Materials and Applications, Jinan University, Guangzhou 510632, China
| | - Hengquan Yang
- Shanxi Key Laboratory of Coal-based Value-added Chemicals Green Catalysis Synthesis, School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
- Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Shanxi University, Taiyuan 030006, China
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21
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Agustin MB, Nematollahi N, Bhattarai M, Oliaei E, Lehtonen M, Rojas OJ, Mikkonen KS. Lignin nanoparticles as co-stabilizers and modifiers of nanocellulose-based Pickering emulsions and foams. CELLULOSE (LONDON, ENGLAND) 2023; 30:8955-8971. [PMID: 37736116 PMCID: PMC10509128 DOI: 10.1007/s10570-023-05399-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 07/12/2023] [Indexed: 09/23/2023]
Abstract
Nanocellulose is very hydrophilic, preventing interactions with the oil phase in Pickering emulsions. This limitation is herein addressed by incorporating lignin nanoparticles (LNPs) as co-stabilizers of nanocellulose-based Pickering emulsions. LNP addition decreases the oil droplet size and slows creaming at pH 5 and 8 and with increasing LNP content. Emulsification at pH 3 and LNP cationization lead to droplet flocculation and rapid creaming. LNP application for emulsification, prior or simultaneously with nanocellulose, favors stability given the improved interactions with the oil phase. The Pickering emulsions can be freeze-dried, enabling the recovery of a solid macroporous foam that can act as adsorbent for pharmaceutical pollutants. Overall, the properties of nanocellulose-based Pickering emulsions and foams can be tailored by LNP addition. This strategy offers a unique, green approach to stabilize biphasic systems using bio-based nanomaterials without tedious and costly modification procedures. Supplementary Information The online version contains supplementary material available at 10.1007/s10570-023-05399-y.
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Affiliation(s)
- Melissa B. Agustin
- Department of Food and Nutrition, Faculty of Agriculture and Forestry, University of Helsinki, P.O. Box 66, FI-00014 Helsinki, Finland
- Present Address: VTT Technical Research Centre of Finland Ltd., P.O. Box 1000, FI-02044 Espoo, Finland
| | - Neda Nematollahi
- Department of Food and Nutrition, Faculty of Agriculture and Forestry, University of Helsinki, P.O. Box 66, FI-00014 Helsinki, Finland
| | - Mamata Bhattarai
- Department of Food and Nutrition, Faculty of Agriculture and Forestry, University of Helsinki, P.O. Box 66, FI-00014 Helsinki, Finland
- Department of Bioproducts and Biosystems, Aalto University, P.O. Box 16300, 00076 Aalto, Finland
| | - Erfan Oliaei
- Wallenberg Wood Science Center, Department of Fiber and Polymer Technology, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Mari Lehtonen
- Department of Food and Nutrition, Faculty of Agriculture and Forestry, University of Helsinki, P.O. Box 66, FI-00014 Helsinki, Finland
| | - Orlando J. Rojas
- Department of Bioproducts and Biosystems, Aalto University, P.O. Box 16300, 00076 Aalto, Finland
- Bioproducts Institute, Department of Chemical and Biological Engineering, Department of Chemistry and Department of Wood Science, University of British Columbia, 2360, East Mall, Vancouver, BC V6T 1Z3 Canada
| | - Kirsi S. Mikkonen
- Department of Food and Nutrition, Faculty of Agriculture and Forestry, University of Helsinki, P.O. Box 66, FI-00014 Helsinki, Finland
- Helsinki Institute of Sustainability Science, University of Helsinki, P.O. Box 65, FI-00014 Helsinki, Finland
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22
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Jin H, Ma Q, Dou T, Jin S, Jiang L. Raman Spectroscopy of Emulsions and Emulsion Chemistry. Crit Rev Anal Chem 2023:1-13. [PMID: 37393560 DOI: 10.1080/10408347.2023.2228411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/04/2023]
Abstract
Emulsions are dispersed systems widely used in various industries. In recent years, Raman spectroscopy (RS), as a spectroscopic technique, has gained much attention for measuring and monitoring emulsions. In this review, we explore the use of RS on emulsion structures and emulsification, important reactions that use emulsions such as emulsion polymerization, catalysis and cascading reactions, as well as various applications of emulsions. We explore how RS is used in emulsions, reactions and applications. RS is a powerful and versatile tool for studying emulsions, but there are also challenges in using RS to monitor emulsion processes, especially if they are rapid or volatile. We also explore these challenges and difficulties, as well as possible designs that can be used to overcome them.
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Affiliation(s)
- Huaizhou Jin
- Key Laboratory of Quantum Precision Measurement, College of Science, Zhejiang University of Technology, Hangzhou, China
| | - Qifei Ma
- College of Optical and Electronic Technology, China Jiliang University, Hangzhou China
- Key Lab of Zhejiang Province on Modern Measurement Technology and Instruments, Hangzhou, China
| | - Tingting Dou
- College of Optical and Electronic Technology, China Jiliang University, Hangzhou China
- Key Lab of Zhejiang Province on Modern Measurement Technology and Instruments, Hangzhou, China
| | - Shangzhong Jin
- College of Optical and Electronic Technology, China Jiliang University, Hangzhou China
- Key Lab of Zhejiang Province on Modern Measurement Technology and Instruments, Hangzhou, China
| | - Li Jiang
- College of Optical and Electronic Technology, China Jiliang University, Hangzhou China
- Key Lab of Zhejiang Province on Modern Measurement Technology and Instruments, Hangzhou, China
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23
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Tian D, Hao R, Zhang X, Shi H, Wang Y, Liang L, Liu H, Yang H. Multi-compartmental MOF microreactors derived from Pickering double emulsions for chemo-enzymatic cascade catalysis. Nat Commun 2023; 14:3226. [PMID: 37270555 DOI: 10.1038/s41467-023-38949-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 05/22/2023] [Indexed: 06/05/2023] Open
Abstract
Bioinspired multi-compartment architectures are desired in synthetic biology and metabolic engineering, as credited by their cell-like structures and intrinsic ability of assembling catalytic species for spatiotemporal control over cascade reactions like in living systems. Herein, we describe a general Pickering double emulsion-directed interfacial synthesis method for the fabrication of multicompartmental MOF microreactors. This approach employs multiple liquid-liquid interfaces as a controllable platform for the self-completing growth of dense MOF layers, enabling the microreactor with tailor-made inner architectures and selective permeability. Importantly, simultaneous encapsulation of incompatible functionalities, including hydrophilic enzyme and hydrophobic molecular catalyst, can be realized in a single MOF microreactor for operating chemo-enzymatic cascade reactions. As exemplified by the Grubb' catalyst/CALB lipase driven olefin metathesis/ transesterification cascade reaction and glucose oxidase (GOx)/Fe-porphyrin catalyzed oxidation reaction, the multicompartmental microreactor exhibits 2.24-5.81 folds enhancement in cascade reaction efficiency in comparison to the homogeneous counterparts or physical mixture of individual analogues, due to the restrained mutual inactivation and substrate channelling effects. Our study prompts further design of multicompartment systems and the development of artificial cells capable of complex cellular transformations.
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Affiliation(s)
- Danping Tian
- School of Chemistry and Chemical Engineering, Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Shanxi University, Taiyuan, 030006, China
| | - Ruipeng Hao
- School of Chemistry and Chemical Engineering, Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Shanxi University, Taiyuan, 030006, China
| | - Xiaoming Zhang
- School of Chemistry and Chemical Engineering, Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Shanxi University, Taiyuan, 030006, China.
| | - Hu Shi
- School of Chemistry and Chemical Engineering, Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Shanxi University, Taiyuan, 030006, China
| | - Yuwei Wang
- School of Chemistry and Chemical Engineering, Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Shanxi University, Taiyuan, 030006, China
| | - Linfeng Liang
- Institute of Crystalline Materials, Shanxi University, Taiyuan, 030006, China
| | - Haichao Liu
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China.
| | - Hengquan Yang
- School of Chemistry and Chemical Engineering, Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Shanxi University, Taiyuan, 030006, China.
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24
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Borah R, Ag KR, Minja AC, Verbruggen SW. A Review on Self-Assembly of Colloidal Nanoparticles into Clusters, Patterns, and Films: Emerging Synthesis Techniques and Applications. SMALL METHODS 2023; 7:e2201536. [PMID: 36856157 DOI: 10.1002/smtd.202201536] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 01/25/2023] [Indexed: 06/09/2023]
Abstract
The colloidal synthesis of functional nanoparticles has gained tremendous scientific attention in the last decades. In parallel to these advancements, another rapidly growing area is the self-assembly or self-organization of these colloidal nanoparticles. First, the organization of nanoparticles into ordered structures is important for obtaining functional interfaces that extend or even amplify the intrinsic properties of the constituting nanoparticles at a larger scale. The synthesis of large-scale interfaces using complex or intricately designed nanostructures as building blocks, requires highly controllable self-assembly techniques down to the nanoscale. In certain cases, for example, when dealing with plasmonic nanoparticles, the assembly of the nanoparticles further enhances their properties by coupling phenomena. In other cases, the process of self-assembly itself is useful in the final application such as in sensing and drug delivery, amongst others. In view of the growing importance of this field, this review provides a comprehensive overview of the recent developments in the field of nanoparticle self-assembly and their applications. For clarity, the self-assembled nanostructures are classified into two broad categories: finite clusters/patterns, and infinite films. Different state-of-the-art techniques to obtain these nanostructures are discussed in detail, before discussing the applications where the self-assembly significantly enhances the performance of the process.
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Affiliation(s)
- Rituraj Borah
- Sustainable Energy, Air & Water Technology (DuEL), Department of Bioscience Engineering, University of Antwerp, Groenenborgerlaan 171, Antwerp, 2020, Belgium
- NANOlab Center of Excellence, University of Antwerp, Groenenborgerlaan 171, Antwerp, 2020, Belgium
| | - Karthick Raj Ag
- Sustainable Energy, Air & Water Technology (DuEL), Department of Bioscience Engineering, University of Antwerp, Groenenborgerlaan 171, Antwerp, 2020, Belgium
- NANOlab Center of Excellence, University of Antwerp, Groenenborgerlaan 171, Antwerp, 2020, Belgium
| | - Antony Charles Minja
- Sustainable Energy, Air & Water Technology (DuEL), Department of Bioscience Engineering, University of Antwerp, Groenenborgerlaan 171, Antwerp, 2020, Belgium
- NANOlab Center of Excellence, University of Antwerp, Groenenborgerlaan 171, Antwerp, 2020, Belgium
| | - Sammy W Verbruggen
- Sustainable Energy, Air & Water Technology (DuEL), Department of Bioscience Engineering, University of Antwerp, Groenenborgerlaan 171, Antwerp, 2020, Belgium
- NANOlab Center of Excellence, University of Antwerp, Groenenborgerlaan 171, Antwerp, 2020, Belgium
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25
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Li Y, Xu J, Yang H. Pickering Emulsion Droplet-Derived Multicompartmentalized Microspheres for Innovative Applications. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:5621-5630. [PMID: 37058608 DOI: 10.1021/acs.langmuir.3c00135] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Multicompartmentalized microspheres with multilevel and complex interior structures have great potential in practical applications due to their cell-like structures and microscale dimension. The Pickering emulsion droplet-confined synthesis route has been demonstrated to be a promising strategy for fabricating multicompartmentalized microspheres. Since Pickering emulsion-templated formation of hollow microspheres is an interface-directed process in which the growth of shells occurs at the oil/water interface and the confined space of Pickering emulsion droplet accommodates a variety of behaviors, such as surfactant-guided assembly growth, confined pyrolysis transformation, tritemplated growth, and bottom-up assembly, the independent and free regulation of the interface and internal structure of microspheres is allowed. In this Perspective, we highlight the recent progress in the synthesis of microparticles with tunable interior structures via the Pickering emulsion droplet-based approach. And we delve into the innovative applications of these multilevel-structured microparticles benefiting from their biomimetic multicompartments. Finally, some fundamental challenges and opportunities are identified for regulating the interior structure within microspheres and promoting practical applications by virtue of the Pickering emulsion droplet-confined synthesis pathway.
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Affiliation(s)
- Yanyan Li
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
| | - Jie Xu
- State Key Laboratory of New Textile Materials and Advanced Processing Technology, School of Materials Science and Engineering, Wuhan Textile University, Wuhan 430200, China
| | - Hengquan Yang
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
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26
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Hydrodeoxygenation of Bio-Oil over an Enhanced Interfacial Catalysis of Microemulsions Stabilized by Amphiphilic Solid Particles. Catalysts 2023. [DOI: 10.3390/catal13030573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2023] Open
Abstract
Bio-oil emulsions were stabilized using coconut shell coke, modified amphiphilic graphene oxide, and hydrophobic nano-fumed silica as solid emulsifiers. The effects of different particles on the stability of bio-oil emulsions were discussed. Over 21 days, the average droplet size of raw bio-oil increased by 64.78%, while that of bio-oil Pickering emulsion stabilized by three particles only changed within 20%. The bio-oil Pickering emulsion stabilized by Ni/SiO2 was then used for catalytic hydrodeoxygenation. It was found that the bio-oil undergoes polymerization during catalytic hydrogenation. For raw bio-oil hydrodeoxygenation, the polymerization reaction was little affected by the temperature below 200 °C, but when the temperature raised to 250 °C, it was greatly accelerated. However, the polymerization of monocyclic aromatic compounds in the reaction process was partially inhibited under the bio-oil Pickering emulsion system. Additionally, a GC-MS analysis was performed on raw bio-oil and hydrodeoxygenated bio-oil to compare the change in GC-MS-detectable components after hydrodeoxygenation at 200 °C. The results showed that the Pickering emulsion catalytic system greatly promoted the hydrodeoxygenation of phenolic compounds in bio-oil, with most monocyclic phenolic compounds detected by GC-MS converting to near 100%.
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27
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Du L, Li Y, Wang J, Zhou Z, Lan T, Jing D, Wu W, Zhou J. Cost-Effective Droplet Generator for Portable Bio-Applications. MICROMACHINES 2023; 14:466. [PMID: 36838166 PMCID: PMC9966110 DOI: 10.3390/mi14020466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 02/03/2023] [Accepted: 02/15/2023] [Indexed: 06/18/2023]
Abstract
The convenient division of aqueous samples into droplets is necessary for many biochemical and medical analysis applications. In this article, we propose the design of a cost-effective droplet generator for potential bio-chemical application, featuring two symmetric tubes. The new droplet generator revisits the relationship between capillary components and liquid flow rates. The size of generated droplets by prototype depends only on generator dimensions, without precisely needing to control external flow conditions or driving pressure, even when the relative extreme difference in flow rate for generating nL level droplets is over 57.79%, and the relative standard deviation (RSD) of the volume of droplets is barely about 9.80%. A dropper working as a pressure resource is used to verify the rapidity and robustness of this principle of droplet generation, which shows great potential for a wide range of droplet-based applications.
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Affiliation(s)
- Lin Du
- School of Mechanical Engineering, University of Shanghai for Science and Technology, Shanghai 200433, China
| | - Yuxin Li
- School of Mechanical Engineering, University of Shanghai for Science and Technology, Shanghai 200433, China
| | - Jie Wang
- School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200433, China
| | - Zijian Zhou
- School of Mechanical Engineering, University of Shanghai for Science and Technology, Shanghai 200433, China
| | - Tian Lan
- School of Mechanical Engineering, University of Shanghai for Science and Technology, Shanghai 200433, China
| | - Dalei Jing
- School of Mechanical Engineering, University of Shanghai for Science and Technology, Shanghai 200433, China
| | - Wenming Wu
- Institute of Biological and Medical Engineering, Guangdong Academy of Sciences, Guangzhou 510075, China
- State Key Laboratory of ASIC and System, School of Microelectronics, Fudan University, Shanghai 200433, China
| | - Jia Zhou
- State Key Laboratory of ASIC and System, School of Microelectronics, Fudan University, Shanghai 200433, China
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28
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He X, Xue Y, Dong J, Li X. Multiple Pickering emulsions fabricated by a single block copolymer amphiphile in one-step. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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29
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Wang L, Shi B, Zhao H, Qi X, Chen J, Li J, Shang Y, Fu KK, Zhang X, Tian M, Qu L. 3D-Printed Parahydrophobic Functional Textile with a Hierarchical Nanomicroscale Structure. ACS NANO 2022; 16:16645-16654. [PMID: 36173181 DOI: 10.1021/acsnano.2c06069] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Functional textiles with superhydrophobicity and high adhesion to water, called parahydrophobic, are attracting increasing attention from industry and academia. The hierarchical (micronanoscale) surface patterns in nature provide an excellent reference for the manufacture of parahydrophobic functional textiles. However, the replication of the complex parahydrophobic micronanostructures in nature exceeds the ability of traditional manufacturing strategies, which makes it difficult to accurately manufacture controllable nanostructures on yarn and textiles. Herein, a two-photon femtosecond laser direct writing strategy with nanoscale process capability was utilized to accurately construct the functional parahydrophobic yarn with a diameter of 900 μm. Inspired by rose petals, the parahydrophobic yarn is composed of a hollow round tube, regularly arranged micropapillae (the diameter is 109 μm), and nanofolds (the distance is 800 nm) on papillae. The bionic yarn exhibited a superior parahydrophobic behavior, where the liquid droplet not only was firmly adhered to the bionic yarn at an inverted angle (180°) but also presented as spherical on the yarn (the maximum water contact angle is 159°). The fabric woven by the bionic yarn also exhibited liquid droplet-catching ability even when tilted vertically or turned upside down. Based on the excellent parahydrophobic function of bionic yarn, we demonstrated a glove that has very wide application potential in the fields of water droplet-based transportation, manipulation, microreactors, microextractors, etc.
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Affiliation(s)
- Lihong Wang
- Research Center for Intelligent and Wearable Technology, College of Textiles and Clothing, State Key Laboratory of Bio-Fibers and Eco-Textiles, Collaborative Innovation Center for Eco-Textiles of Shandong Province, Qingdao University, Qingdao, Shandong 266071, PR China
| | - Baohui Shi
- Research Center for Intelligent and Wearable Technology, College of Textiles and Clothing, State Key Laboratory of Bio-Fibers and Eco-Textiles, Collaborative Innovation Center for Eco-Textiles of Shandong Province, Qingdao University, Qingdao, Shandong 266071, PR China
- Key Laboratory of High Performance Fibers and Products, Ministry of Education, Donghua University, Shanghai 201620, PR China
| | - Hongtao Zhao
- Research Center for Intelligent and Wearable Technology, College of Textiles and Clothing, State Key Laboratory of Bio-Fibers and Eco-Textiles, Collaborative Innovation Center for Eco-Textiles of Shandong Province, Qingdao University, Qingdao, Shandong 266071, PR China
| | - Xiangjun Qi
- Research Center for Intelligent and Wearable Technology, College of Textiles and Clothing, State Key Laboratory of Bio-Fibers and Eco-Textiles, Collaborative Innovation Center for Eco-Textiles of Shandong Province, Qingdao University, Qingdao, Shandong 266071, PR China
| | - Jiahui Chen
- Research Center for Intelligent and Wearable Technology, College of Textiles and Clothing, State Key Laboratory of Bio-Fibers and Eco-Textiles, Collaborative Innovation Center for Eco-Textiles of Shandong Province, Qingdao University, Qingdao, Shandong 266071, PR China
| | - Juanjuan Li
- Research Center for Intelligent and Wearable Technology, College of Textiles and Clothing, State Key Laboratory of Bio-Fibers and Eco-Textiles, Collaborative Innovation Center for Eco-Textiles of Shandong Province, Qingdao University, Qingdao, Shandong 266071, PR China
| | - Yuanyuan Shang
- Research Center for Intelligent and Wearable Technology, College of Textiles and Clothing, State Key Laboratory of Bio-Fibers and Eco-Textiles, Collaborative Innovation Center for Eco-Textiles of Shandong Province, Qingdao University, Qingdao, Shandong 266071, PR China
- Key Laboratory of High Performance Fibers and Products, Ministry of Education, Donghua University, Shanghai 201620, PR China
| | - Kun Kelvin Fu
- Department of Mechanical Engineering, University of Delaware, Newark, Delaware 19716, United States
| | - Xueji Zhang
- School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen, Guangdong 518060, PR China
| | - Mingwei Tian
- Research Center for Intelligent and Wearable Technology, College of Textiles and Clothing, State Key Laboratory of Bio-Fibers and Eco-Textiles, Collaborative Innovation Center for Eco-Textiles of Shandong Province, Qingdao University, Qingdao, Shandong 266071, PR China
| | - Lijun Qu
- Research Center for Intelligent and Wearable Technology, College of Textiles and Clothing, State Key Laboratory of Bio-Fibers and Eco-Textiles, Collaborative Innovation Center for Eco-Textiles of Shandong Province, Qingdao University, Qingdao, Shandong 266071, PR China
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30
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Guo X, Xue N, Zhang M, Ettelaie R, Yang H. A supraparticle-based biomimetic cascade catalyst for continuous flow reaction. Nat Commun 2022; 13:5935. [PMID: 36209156 PMCID: PMC9547976 DOI: 10.1038/s41467-022-33756-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Accepted: 09/30/2022] [Indexed: 11/22/2022] Open
Abstract
Robust millimeter-sized spherical particles with controlled compositions and microstructures hold promises of important practical applications especially in relation to continuous flow cascade catalysis. However, the efficient fabrication methods for producing such particles remain scare. Here, we demonstrate a liquid marble approach to fabricate robust mm-sized porous supraparticles (SPs) through the bottom-up assembly of silica nanoparticles in the presence of strength additive or surface interactions, without the need for the specific liquid-repellent surfaces used by the existing methods. As the proof of the concept, our method was exemplified by fabricating biomimetic cascade catalysts through assembly of two types of well-defined catalytically active nanoparticles. The obtained SP-based cascade catalysts work well in industrially preferred fixed-bed reactors, exhibiting excellent catalysis efficiency, controlled reaction kinetics, high enantioselectivity (99% ee) and outstanding stability (200~500 h) in the cascades of ketone hydrogenation-kinetic resolution and amine racemization-kinetic resolution. The excellent catalytic performances are attributed to the structural features, reconciling close proximity of different catalytic sites and their sufficient spatial isolation. Robust millimeter-sized spherical particles with controlled compositions and microstructures hold promises of important practical applications. Here the authors develop a liquid marble method to facilely fabricate robust millimeter-sized supraparticles with controlled microstructures through the bottom-up assembly of silica nanoparticles.
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Affiliation(s)
- Xiaomiao Guo
- School of Chemistry and Chemical Engineering, Shanxi University, 030006, Taiyuan, China
| | - Nan Xue
- School of Chemistry and Chemical Engineering, Shanxi University, 030006, Taiyuan, China
| | - Ming Zhang
- School of Chemistry and Chemical Engineering, Shanxi University, 030006, Taiyuan, China
| | - Rammile Ettelaie
- Food Colloids Group, School of Food Science and Nutrition, University of Leeds, Leeds, LS2 9JT, UK
| | - Hengquan Yang
- School of Chemistry and Chemical Engineering, Shanxi University, 030006, Taiyuan, China. .,Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Shanxi University, 030006, Taiyuan, China.
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31
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Ni L, Yu C, Wei Q, Liu D, Qiu J. Pickering Emulsion Catalysis: Interfacial Chemistry, Catalyst Design, Challenges, and Perspectives. Angew Chem Int Ed Engl 2022; 61:e202115885. [PMID: 35524649 DOI: 10.1002/anie.202115885] [Citation(s) in RCA: 40] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Indexed: 12/17/2022]
Abstract
Pickering emulsions are particle-stabilized surfactant-free dispersions composed of two immiscible liquid phases, and emerge as attractive catalysis platform to surpass traditional technique barrier in some cases. In this review, we have comprehensively summarized the development and the catalysis applications of Pickering emulsions since the pioneering work in 2010. The explicit mechanism for Pickering emulsions will be initially discussed and clarified. Then, summarization is given to the design strategy of amphiphilic emulsion catalysts in two categories of intrinsic and extrinsic amphiphilicity. The progress of the unconventional catalytic reactions in Pickering emulsion is further described, especially for the polarity/solubility difference-driven phase segregation, "smart" emulsion reaction system, continuous flow catalysis, and Pickering interfacial biocatalysis. Challenges and future trends for the development of Pickering emulsion catalysis are finally outlined.
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Affiliation(s)
- Lin Ni
- State Key Lab of Fine Chemicals, School of Chemical Engineering, Liaoning Key Lab for Energy Materials and Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, P.R. China
| | - Chang Yu
- State Key Lab of Fine Chemicals, School of Chemical Engineering, Liaoning Key Lab for Energy Materials and Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, P.R. China
| | - Qianbing Wei
- State Key Lab of Fine Chemicals, School of Chemical Engineering, Liaoning Key Lab for Energy Materials and Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, P.R. China
| | - Dongming Liu
- State Key Lab of Fine Chemicals, School of Chemical Engineering, Liaoning Key Lab for Energy Materials and Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, P.R. China
| | - Jieshan Qiu
- State Key Lab of Fine Chemicals, School of Chemical Engineering, Liaoning Key Lab for Energy Materials and Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, P.R. China.,State Key Lab of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
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32
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Ultrahigh efficient emulsification with drag-reducing liquid gating interfacial behavior. Proc Natl Acad Sci U S A 2022; 119:e2206462119. [PMID: 35858305 PMCID: PMC9304007 DOI: 10.1073/pnas.2206462119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Emulsification is a crucial technique for mixing immiscible liquids into droplets in numerous areas ranging from food to medicine to chemical synthesis. Commercial emulsification methods are promising for high production, but suffer from high energy input. Here, we report a very simple and scalable emulsification method that employs the drag-reducing liquid gating structure to create a smooth liquid-liquid interface for the reduction of resistance and tunable generation of droplets with good uniformity. Theoretical modeling and experimental results demonstrate that our method exhibits ultrahigh efficiency, which can reach up to more than 4 orders of magnitude greater energy-saving compared to commercial methods. For temperature-sensitive biological components, such as enzymes, proteins, and bacteria, it can offer a comfortable environment to avoid exposure to high temperatures during emulsifying, and the interface also enables the suppression of fouling. This unique drag-reducing liquid gating interfacial emulsification mechanism promotes the efficiency of droplet generation and provides fresh insight into the innovation of emulsifications that can be applied in many fields, including the food industry, the daily chemical industry, biomedicine, material fabrication, the petrochemical industry, and beyond.
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33
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Mittmann E, Mickoleit F, Maier DS, Stäbler SY, Klein MA, Niemeyer CM, Rabe KS, Schüler D. A Magnetosome-Based Platform for Flow Biocatalysis. ACS APPLIED MATERIALS & INTERFACES 2022; 14:22138-22150. [PMID: 35508355 PMCID: PMC9121345 DOI: 10.1021/acsami.2c03337] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 04/11/2022] [Indexed: 06/14/2023]
Abstract
Biocatalysis in flow reactor systems is of increasing importance for the transformation of the chemical industry. However, the necessary immobilization of biocatalysts remains a challenge. We here demonstrate that biogenic magnetic nanoparticles, so-called magnetosomes, represent an attractive alternative for the development of nanoscale particle formulations to enable high and stable conversion rates in biocatalytic flow processes. In addition to their intriguing material characteristics, such as high crystallinity, stable magnetic moments, and narrow particle size distribution, magnetosomes offer the unbeatable advantage over chemically synthesized nanoparticles that foreign protein "cargo" can be immobilized on the enveloping membrane via genetic engineering and thus, stably presented on the particle surface. To exploit these advantages, we develop a modular connector system in which abundant magnetosome membrane anchors are genetically fused with SpyCatcher coupling groups, allowing efficient covalent coupling with complementary SpyTag-functionalized proteins. The versatility of this approach is demonstrated by immobilizing a dimeric phenolic acid decarboxylase to SpyCatcher magnetosomes. The functionalized magnetosomes outperform similarly functionalized commercial particles by exhibiting stable substrate conversion during a 60 h period, with an average space-time yield of 49.2 mmol L-1 h-1. Overall, our results demonstrate that SpyCatcher magnetosomes significantly expand the genetic toolbox for particle surface functionalization and increase their application potential as nano-biocatalysts.
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Affiliation(s)
- Esther Mittmann
- Institute
for Biological Interfaces 1, Karlsruhe Institute
of Technology (KIT), Hermann-von-Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany
| | - Frank Mickoleit
- Department
of Microbiology, University of Bayreuth, Universitätsstraße 30, D-95447 Bayreuth, Germany
| | - Denis S. Maier
- Department
of Microbiology, University of Bayreuth, Universitätsstraße 30, D-95447 Bayreuth, Germany
| | - Sabrina Y. Stäbler
- Department
of Microbiology, University of Bayreuth, Universitätsstraße 30, D-95447 Bayreuth, Germany
| | - Marius A. Klein
- Department
of Microbiology, University of Bayreuth, Universitätsstraße 30, D-95447 Bayreuth, Germany
| | - Christof M. Niemeyer
- Institute
for Biological Interfaces 1, Karlsruhe Institute
of Technology (KIT), Hermann-von-Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany
| | - Kersten S. Rabe
- Institute
for Biological Interfaces 1, Karlsruhe Institute
of Technology (KIT), Hermann-von-Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany
| | - Dirk Schüler
- Department
of Microbiology, University of Bayreuth, Universitätsstraße 30, D-95447 Bayreuth, Germany
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34
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Zong J, Yue J. Continuous Solid Particle Flow in Microreactors for Efficient Chemical Conversion. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c00473] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jie Zong
- Department of Chemical Engineering, Engineering and Technology Institute Groningen, University of Groningen, Nijenborgh 4, 9747 AG, Groningen, The Netherlands
| | - Jun Yue
- Department of Chemical Engineering, Engineering and Technology Institute Groningen, University of Groningen, Nijenborgh 4, 9747 AG, Groningen, The Netherlands
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35
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Ni L, Yu C, Wei Q, Liu D, Qiu J. Pickering Emulsion Catalysis: Interfacial Chemistry, Catalyst Design, Challenges, and Perspectives. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202115885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Lin Ni
- Dalian University of Technology School of Chemical Engineering CHINA
| | - Chang Yu
- Dalian University of Technology School of Chemical Engineering CHINA
| | - Qianbing Wei
- Dalian University of Technology School of Chemical Engineering CHINA
| | - Dongming Liu
- Dalian University of Technology School of Chemical Engineering CHINA
| | - Jieshan Qiu
- Dalian University of Technology School of Chemical Engineering High Technology Zone, No. 2 Ling Gong Road 116024 Dalian CHINA
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