1
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Wang H, Wang J, Zhang H, Wang X, Rao X. Quercetin encapsulation and release using rapid CO 2-responsive rosin-based surfactants in Pickering emulsions. Food Chem 2024; 458:140528. [PMID: 39047322 DOI: 10.1016/j.foodchem.2024.140528] [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: 05/17/2024] [Revised: 07/03/2024] [Accepted: 07/17/2024] [Indexed: 07/27/2024]
Abstract
Emulsion-based delivery systems are extensively employed for encapsulating functional active ingredients, protecting them from degradation, and enhancing bioavailability and release efficiency. Here, a CO2-responsive surfactant synthesized from rosin displays rapid responsiveness to CO2 at room temperature, transitioning reversibly switches between active and inactive states multiple times. The dual tertiary amines on the rosin rigid structure contributes to its CO2 sensitivity. When in its active cationic form, in conjunction with silica nanoparticles, it exhibits desired Pickering emulsification performance across various oil phases. In the Pickering emulsion loaded with quercetin, the encapsulation efficiency and loading efficiency reached 80.50% and 0.69%, respectively, with stability lasting at least 30 days. The system provides robust protection for quercetin against external factors, such as UV and heat, revealing sustained release effects. This study investigated the potential of using rosin-based CO2-responsive surfactants alongside nanoparticles to design stable Pickering emulsion systems for active substance encapsulation and sustained release.
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Affiliation(s)
- Hanwen Wang
- Academy of Advanced Carbon Conversion Technology, Huaqiao University, Xiamen, Fujian Province 361021, China; College of Chemical Engineering, Huaqiao University, Xiamen, Fujian Province 361021, China; Fujian Provincial Key Laboratory of Biomass Low-Carbon Conversion, Huaqiao University, Xiamen, Fujian Province 361021, China
| | - Jiawei Wang
- College of Chemical Engineering, Huaqiao University, Xiamen, Fujian Province 361021, China
| | - Hangyuan Zhang
- College of Chemical Engineering, Huaqiao University, Xiamen, Fujian Province 361021, China
| | - Xinyang Wang
- Academy of Advanced Carbon Conversion Technology, Huaqiao University, Xiamen, Fujian Province 361021, China; College of Chemical Engineering, Huaqiao University, Xiamen, Fujian Province 361021, China; Fujian Provincial Key Laboratory of Biomass Low-Carbon Conversion, Huaqiao University, Xiamen, Fujian Province 361021, China.
| | - Xiaoping Rao
- Academy of Advanced Carbon Conversion Technology, Huaqiao University, Xiamen, Fujian Province 361021, China; College of Chemical Engineering, Huaqiao University, Xiamen, Fujian Province 361021, China; Fujian Provincial Key Laboratory of Biomass Low-Carbon Conversion, Huaqiao University, Xiamen, Fujian Province 361021, China.
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2
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Fan Y, Huang X, Ji J, Zhang W, Zhang J, Hou X. Building Functional Liquid-Based Interfaces: From Mechanism to Application. Angew Chem Int Ed Engl 2024; 63:e202403919. [PMID: 38794786 DOI: 10.1002/anie.202403919] [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: 02/27/2024] [Revised: 04/20/2024] [Accepted: 05/21/2024] [Indexed: 05/26/2024]
Abstract
Functional liquid-based interfaces, with their inhomogeneous regions that emphasize the functionalized liquids, have attracted much interest as a versatile platform for a broad spectrum of applications, from chemical manufacturing to practical uses. These interfaces leverage the physicochemical characteristics of liquids, alongside dynamic behaviors induced by macroscopic wettability and microscopic molecular exchange balance, to allow for tailored properties within their functional structures. In this Minireview, we provide a foundational overview of these functional interfaces, based on the structural investigations and molecular mechanisms of interaction forces that directly modulate functionalities. Then, we discuss design strategies that have been employed in recent applications, and the crucial aspects that require focus. Finally, we highlight the current challenges in functional liquid-based interfaces and provide a perspective on future research directions.
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Affiliation(s)
- Yi Fan
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Xinlu Huang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Jiaao Ji
- Institute of Artificial Intelligence, Xiamen University, Xiamen, 361005, China
| | - Wenli Zhang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Jian Zhang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Xu Hou
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
- Institute of Artificial Intelligence, Xiamen University, Xiamen, 361005, China
- Research Institute for Biomimetics and Soft Matter, Fujian Provincial Key Laboratory for Soft Functional Materials Research, College of Physical Science and Technology, Xiamen University, Xiamen, 361005, China
- Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM), Xiamen, 361005, China
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3
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Wang J, Ran D, Lu H, Zhang J, Wu Y. Realizing the Efficient Dissolution of Drag Reducer upon pH-Induced Demulsification of Inverse Polymer Emulsion. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024. [PMID: 39019027 DOI: 10.1021/acs.langmuir.4c01867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/19/2024]
Abstract
The increasing exploitation of fossil resources needs to shift people's attention to developing unconventional reservoir resources. Polyacrylamide-based emulsion drag reducers can effectively reduce the turbulence of fracturing fluid and improve oil recovery, but their release effect is poor, which limits their practical application. Here, we constructed a pH-responsive inverse polymer emulsion of poly(acrylamide-2-acrylamido-2-methylpropanesulfonic acid). Interestingly, HOA/Tween 80 exhibits remarkable pH-responsive behavior, which enables the monomer emulsion to change the type of emulsion under pH stimulation. Our results propose that the P(AM-AMPS) polymer emulsion is eluted with the same aqueous phase as the W/O P(AM-AMPS) polymer emulsion, thereby achieving the effect of drag reduction. P(AM-AMPS) can be rapidly released from the inverse polymer emulsion within 70 s upon pH stimulation, the drag reduction rate of which was 60.4%. Obviously, the inverse polymer emulsion prepared by a pH-responsive surfactant not only has good stability but also can achieve rapid release of the polymer upon pH stimulation, which supplies an interesting indication to explain why a balance exists between the stability of the emulsion and release of P(AM-AMPS).
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Affiliation(s)
- Jinyu Wang
- Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province, Chengdu 610500, P. R. China
- Engineering Research Center of Oilfield Chemistry, Ministry of Education, Chengdu 610500, P. R. China
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, P. R. China
| | - Dongsheng Ran
- Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province, Chengdu 610500, P. R. China
| | - Hongsheng Lu
- Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province, Chengdu 610500, P. R. China
- Engineering Research Center of Oilfield Chemistry, Ministry of Education, Chengdu 610500, P. R. China
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, P. R. China
| | - Jiaping Zhang
- Petrochina Sichuan Petrochemical Co., Ltd., Chengdu 611930, P. R. China
| | - Yang Wu
- Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province, Chengdu 610500, P. R. China
- Engineering Research Center of Oilfield Chemistry, Ministry of Education, Chengdu 610500, P. R. China
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, P. R. China
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4
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Sun Y, Qing M, Qi J, Qu H, Shu Q, Liang H, Shen S, Wang N, Lu H, Lv X. Insights into the Efficient Release of the Polyacrylamide Drag Reducer via a pH-Responsive Inverse Polymer Emulsion. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:6394-6401. [PMID: 38483330 DOI: 10.1021/acs.langmuir.3c03976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/27/2024]
Abstract
The enormous demand for petroleum consumption has resulted in the shortage of fossil resources, prompting the need to explore unconventional reservoirs. Polyacrylamide emulsion drag reducers are capable of inhibiting the turbulence of fracturing fluids for enhancing the reservoir stimulation results, but the poor dissolution efficiency of polyacrylamide emulsion drag reducers is the primary limitation to their large-scale application. Here, a pH-responsive ionic liquid surfactant, oleic acid/cyclohexanediamine (HOA/HMDA), is synthesized by using oleic acid (HOA) and cyclohexanediamine (HMDA). HOA/HMDA shows a remarkable pH-responsive behavior due to the pH-induced deconstruction of the HOA/HMDA structure. Interestingly, the HOA/HMDA-stabilized monomer emulsion exhibits an obvious pH-induced emulsion structure transformation behavior. In addition, the HOA/HMDA-stabilized monomer emulsion possesses excellent dynamic and storage stability, supporting the inverse emulsion polymerization of the polymer P(AM/AMPS/AA). The obtained P(AM/AMPS/AA) polymer inverse emulsions maintained stability for 30 days. Our finding proposes that the structure of the P(AM/AMPS/AA) polymer inverse emulsions changes with pH stimulation, which is capable of facilitating the release of polymers. P(AM/AMPS/AA) is released from the P(AM/AMPS/AA) polymer inverse emulsions within 30 s at a pH value of 12.06, along with a drag reduction rate of 62.54%. Obviously, the HOA/HMDA-stabilized P(AM/AMPS/AA) polymer inverse emulsions eliminate the contradiction between the stability and release of polyacrylamide emulsion drag reducers, which is promising for meeting the demands of reservoir stimulation.
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Affiliation(s)
- Yuhai Sun
- Petroleum Engineering Technology Research Institute, Sinopec Shengli Oilfield Co, Dongying 257000, P. R. China
| | - Miaomiao Qing
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, P. R. China
| | - Jie Qi
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, P. R. China
| | - Huimin Qu
- Petroleum Engineering Technology Research Institute, Sinopec Shengli Oilfield Co, Dongying 257000, P. R. China
| | - Qinglin Shu
- Petroleum Engineering Technology Research Institute, Sinopec Shengli Oilfield Co, Dongying 257000, P. R. China
| | - Huiyong Liang
- Ningbo Institute of Dalian University of Technology, Ningbo 315016, P. R. China
| | - Shi Shen
- Ningbo Institute of Dalian University of Technology, Ningbo 315016, P. R. China
| | - Na Wang
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, P. R. China
| | - Hongsheng Lu
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, P. R. China
| | - Xin Lv
- Ningbo Institute of Dalian University of Technology, Ningbo 315016, P. R. China
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5
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Li Z, Shi Y, Ding Y, Xiong D, Li Z, Wang H, Qiu J, Xuan X, Wang J. Zr-Based MOF-Stabilized CO 2-Responsive Pickering Emulsions for Efficient Reduction of Nitroarenes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024. [PMID: 38307089 DOI: 10.1021/acs.langmuir.3c03564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2024]
Abstract
A Pickering emulsion is a natural microreactor for interfacial catalysis in which an emulsifier is critical. Recently, a metal-organic framework (MOF) has attracted attention to emulsify water-organic mixtures for constructing a Pickering emulsion. However, a few stimuli-responsive Pickering emulsions based on MOFs have been reported, and the MOF emulsifiers cannot be regenerated at room temperature. Herein, the Zr-MOF with a rodlike morphology is synthesized using ionic liquid as a modulator and then modified with n-(trimethoxysilylpropyl)imidazole (C3im) to prepare a series of functionalized Zr-MOFs (MOF-C3im). It is found that MOF-C3im is an excellent emulsifier to construct stable and CO2-responsive Pickering emulsions even at low content (>0.20 wt %). Notably, the emulsification and demulsification of the emulsions can be easily and reversibly switched by bubbling of CO2 and N2 alternatively at room temperature because CO2 and imidazole molecules anchored on the Zr-MOF underwent a reversible acid-base reaction, resulting in an obvious change in the wettability of the emulsifier. As a proof of concept, the reduction reactions of nitrobenzene have been successfully carried out in these Pickering emulsions, demonstrating the efficient integration as a microreactor for chemical reaction, product separation, and emulsifier recycling under ambient conditions. This strategy provides an innovative option to develop stimulus-responsive Pickering emulsions for sustainable chemical processes.
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Affiliation(s)
- Zhuoxue Li
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Yunlei Shi
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Yimian Ding
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Dazhen Xiong
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Zhiyong Li
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Huiyong Wang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Jikuan Qiu
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Xiaopeng Xuan
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Jianji Wang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
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6
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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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7
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Hardt M, Busse F, Raschke S, Honnigfort C, Carrascosa-Tejedor J, Wenk P, Gutfreund P, Campbell RA, Heuer A, Braunschweig B. Photo-Responsive Control of Adsorption and Structure Formation at the Air-Water Interface with Arylazopyrazoles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:5861-5871. [PMID: 37058525 DOI: 10.1021/acs.langmuir.3c00294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Smart interfaces that are responsive to external triggers such as light are of great interest for the development of responsive or adaptive materials and interfaces. Using alkyl-arylazopyrazole butyl sulfonate surfactants (alkyl-AAP) that can undergo E/Z photoisomerization when irradiated with green (E) and UV (Z) lights, we demonstrate through a combination of experiments and computer simulations that there can be surprisingly large changes in surface tension and in the molecular structure and order at air-water interfaces. Surface tensiometry, vibrational sum-frequency generation (SFG) spectroscopy, and neutron reflectometry (NR) are applied to the study of custom-synthesized AAP surfactants with octyl- and H-terminal groups at air-water interfaces as a function of their bulk concentration and E/Z configuration. Upon photoswitching, a drastic influence of the alkyl chain on both the surface activity and the responsiveness of interfacial surfactants is revealed from changes in the surface tension, γ, where the largest changes in γ are observed for octyl-AAP (Δγ ∼ 23 mN/m) in contrast to H-AAP with Δγ < 10 mN/m. Results from vibrational SFG spectroscopy and NR show that the interfacial composition and the molecular order of the surfactants drastically change with E/Z photoisomerization and surface coverage. Indeed, from analysis of the S-O (head group) and C-H vibrational bands (hydrophobic tail), a qualitative analysis of orientational and structural changes of interfacial AAP surfactants is provided. The experiments are complemented by resolution of thermodynamic parameters such as equilibrium constants from ultra-coarse-grained simulations, which also capture details like island formation and interaction parameters of interfacial molecules. Here, the interparticle interaction ("stickiness") and the interaction with the surface are adjusted, closely reflecting experimental conditions.
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Affiliation(s)
- Michael Hardt
- Center for Soft Nanoscience, Busso-Peus-Straße 10, 48149 Münster, Germany
- Institute of Physical Chemistry, Corrensstraße 28/30, 48149 Münster, Germany
| | - Franziska Busse
- Institute of Physical Chemistry, Corrensstraße 28/30, 48149 Münster, Germany
| | - Simon Raschke
- Institute of Physical Chemistry, Corrensstraße 28/30, 48149 Münster, Germany
| | - Christian Honnigfort
- Center for Soft Nanoscience, Busso-Peus-Straße 10, 48149 Münster, Germany
- Institute of Physical Chemistry, Corrensstraße 28/30, 48149 Münster, Germany
| | - Javier Carrascosa-Tejedor
- Institut Laue-Langevin, 71 Avenue des Martyrs, CS 20156, 38042 Grenoble Cedex 9, France
- Division of Pharmacy & Optometry, University of Manchester, M13 9PT Manchester, U.K
| | - Paul Wenk
- Institute of Physical Chemistry, Corrensstraße 28/30, 48149 Münster, Germany
| | - Philipp Gutfreund
- Institut Laue-Langevin, 71 Avenue des Martyrs, CS 20156, 38042 Grenoble Cedex 9, France
| | - Richard A Campbell
- Division of Pharmacy & Optometry, University of Manchester, M13 9PT Manchester, U.K
| | - Andreas Heuer
- Institute of Physical Chemistry, Corrensstraße 28/30, 48149 Münster, Germany
| | - Björn Braunschweig
- Center for Soft Nanoscience, Busso-Peus-Straße 10, 48149 Münster, Germany
- Institute of Physical Chemistry, Corrensstraße 28/30, 48149 Münster, Germany
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8
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Liu Y, Zhang H, Zhang W, Binks BP, Cui Z, Jiang J. Charge Density Overcomes Steric Hindrance of Ferrocene Surfactant in Switchable Oil-in-Dispersion Emulsions. Angew Chem Int Ed Engl 2023; 62:e202210050. [PMID: 36328980 DOI: 10.1002/anie.202210050] [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: 07/08/2022] [Revised: 10/20/2022] [Accepted: 11/03/2022] [Indexed: 11/06/2022]
Abstract
A ferrocene surfactant can be switched between single and double head form (FcN+ C12 /Fc+ N+ C12 ) triggered by redox reaction. FcN+ C12 can neither stabilize an O/W emulsion alone nor an oil-in-dispersion emulsion in combination with alumina nanoparticles due to the steric hindrance of the ferrocene group. However, such steric hindrance can be overcome by increasing the charge density in Fc+ N+ C12 , so that oil-in-dispersion emulsions can be co-stabilized by Fc+ N+ C12 and alumina nanoparticles at very low concentrations (1×10-7 M (≈50 ppb) and 0.001 wt %, respectively). Not only can reversible formation/destabilization of oil-in-dispersion emulsions be achieved by redox reaction, but also reversible transformation between oil-in-dispersion emulsions and Pickering emulsions can be obtained through reversing the charge of alumina particles by adjusting the pH. The results provide a new protocol for the design of surfactants for stabilization of smart oil-in-dispersion emulsions.
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Affiliation(s)
- Yunshan Liu
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical & Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, China
| | - Haojie Zhang
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical & Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, China
| | - Wanqing Zhang
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical & Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, China
| | - Bernard P Binks
- Department of Chemistry, University of Hull, Hull, HU6 7RX, UK
| | - Zhenggang Cui
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical & Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, China
| | - Jianzhong Jiang
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical & Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi, 214122, China
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9
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Liu P, Pei X, Cui Z, Song B, Jiang J, Binks BP. Recyclable Nonionic-Anionic Bola Surfactant as a Stabilizer of Size-Controllable and pH-Responsive Pickering Emulsions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:841-850. [PMID: 36603129 DOI: 10.1021/acs.langmuir.2c02924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
A novel nonionic-anionic Bola surfactant (abbreviated as CH3O(EO)7-R11-COOH) was designed and synthesized by condensation of methyl polyoxyethylene (7) ether with 12-bromododecanoic acid. In neutral aqueous solution, the surfactant behaves as a nonionic one and can stabilize oil-in-water (O/W) conventional emulsions alone and costabilize O/W Pickering emulsions with positively charged alumina nanoparticles with n-decane as the oil. In alkaline solution, the carboxylic acid group is deprotonated, becoming anionic and the surfactant is converted to Bola form, which is an inferior emulsifier and does not adsorb on particle surfaces, resulting in demulsification of both kinds of emulsions. With strong hydrophilicity, both the Bola surfactant and the bare particles return to the aqueous phase after demulsification, which is therefore recyclable and reusable in accordance with sustainable chemistry and engineering. In acidic media between pH 3 and 6, the ethyleneoxy groups tend to desorb from particle surfaces, slightly reducing the hydrophobicity of the particles. However, Pickering emulsions are still stable but their droplet size increases on lowering the pH. The Pickering emulsions are therefore pH-responsive and size-controllable. This newly designed Bola surfactant is effective in preparing smart emulsions, which are extensively applied in heterogeneous catalysis, oil product transportation, emulsion polymerization, and new material preparation.
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Affiliation(s)
- Pei Liu
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi214122, Jiangsu, P. R. China
| | - Xiaomei Pei
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi214122, Jiangsu, P. R. China
| | - Zhenggang Cui
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi214122, Jiangsu, P. R. China
| | - Binglei Song
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi214122, Jiangsu, P. R. China
| | - Jianzhong Jiang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi214122, Jiangsu, P. R. China
| | - Bernard P Binks
- Department of Chemistry, University of Hull, HullHU6 7RX, U.K
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10
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Ma H, Xia S, Sun C, Yu F, Cameron A, Zheng W, Shu Q, Pei H, Han Y. Novel Strategy of Polymers in Combination with Silica Particles for Reversible Control of Oil-Water Interface. ACS APPLIED MATERIALS & INTERFACES 2023; 15:2216-2227. [PMID: 36576434 DOI: 10.1021/acsami.2c19037] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Hybrid smart emulsification systems are highly applicable in manipulating oil-in-water (O/W) droplets. Herein, novel switchable block polymers containing both zwitterionic and tertiary amine pendent groups were designed and synthesized to combine with charged silica particles to stabilize the O/W emulsion responsive to pH. This study was carried out in O/W emulsions stabilized with the polymer and silica particles under different pH conditions. The emulsion system was also simulated using molecular dynamics simulation to reveal the mechanism at molecular levels, thus gaining insight into the relationships between the emulsifying properties and the molecular interaction of the mixed system. Upon acidification of the continuous aqueous phase, protonated polymers with excellent hydrophilicity were induced by charged silica particles to cause rapid emulsion coalescence. In alkaline media, the mixed system conversely stabilized the O/W emulsions, cutting polymer consumption by over three-quarters. The emulsification and demulsification can be switched alternately by tuning the pH conditions. The applications exhibited excellent efficiency in separating heavy oil/water emulsions and proved the high conversion rate in emulsion polymerization. Overall, with this novel strategy to relieve tedious modifications on particle surfaces and massive consumption of polymers, the designed responsive emulsification systems can impart intelligent and controllable chemical reactivity to emulsions on demand in a more affordable and sustainable way.
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Affiliation(s)
- Hao Ma
- School of Chemical Engineering and Technology, Tianjin University, Tianjin300350, China
| | - Shuqian Xia
- School of Chemical Engineering and Technology, Tianjin University, Tianjin300350, China
| | - Caixia Sun
- School of Chemical Engineering and Technology, Tianjin University, Tianjin300350, China
| | - Fuce Yu
- School of Chemical Engineering and Technology, Tianjin University, Tianjin300350, China
| | - Alexandre Cameron
- School of Mining and Petroleum Engineering, University of Alberta, Edmonton, AlbertaT6G 1H9, Canada
| | - Wangang Zheng
- Research Institute of Petroleum Engineering, Sinopec Shengli Oilfield Co., Ltd., Dongying, Shandong257067, China
| | - Qinglin Shu
- Research Institute of Petroleum Engineering, Sinopec Shengli Oilfield Co., Ltd., Dongying, Shandong257067, China
| | - Haihua Pei
- School of Petroleum Engineering, China University of Petroleum (East China), Qingdao266580, China
| | - You Han
- School of Chemical Engineering and Technology, Tianjin University, Tianjin300350, China
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11
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Xue L, Li H, Pei X, Cui Z, Song B. Pickering Emulsions Synergistically Stabilized by Aliphatic Primary Amines and Silica Nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:14109-14117. [PMID: 36349864 DOI: 10.1021/acs.langmuir.2c02072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Innovation in emulsion compositions is necessary to enrich emulsion formulations and applications. Herein, Pickering emulsions were prepared using silica nanoparticles and aliphatic primary amines with an oil-water ratio of 1:1 (v/v). Contact angle experiments revealed that the in situ hydrophobization of nanoparticles was caused by the surface adsorption of amine molecules. Notably, the interactions between amine compounds and the surface of silica nanoparticles were electrostatic attractions and mutual hydrogen bonding. The existence of hydrogen bonds was further confirmed by demulsification experiments using a chaotropic agent DMF and increasing temperatures. The hydrophobicity of silica nanoparticles can be effectively improved using most commercially available aliphatic primary amines such as n-hexylamine, n-octylamine, n-decylamine, dodecylamine, and tetradecylamine. The minimum concentrations of the aforementioned amines necessary for stabilizing the emulsions with 0.3 wt % silica nanoparticles are 3, 0.6, 0.3, 0.06, and 0.03 mM, respectively, decreasing significantly with increasing alkyl chain length. With the increase of the amine concentrations, the hydrophobicity of silica particles monotonically increased and finally resulted in the inversion of emulsions. The amine concentrations for emulsion phase inversion were 150, 40, 30, 20, and 20 mM, respectively, in the presence of 0.3 wt % silica nanoparticles. In this work, silica nanoparticles were hydrophobized using aliphatic primary amines. The composite stabilizers developed are useful for developing novel stimuli-responsive Pickering emulsions, while the synergistic effects introduced herein are also helpful in expanding the hydrophobization methods available for nanoparticles.
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Affiliation(s)
- Linyu Xue
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Hongye Li
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Xiaomei Pei
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Zhenggang Cui
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Binglei Song
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China
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12
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The switching behavior of CO2/N2 responsive emulsion systems formed by an amine functionalized quaternary ammonium surfactant. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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13
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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: 35] [Impact Index Per Article: 17.5] [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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14
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Liu L, Zhang M, Lu Z, Jin Z, Lu Y, Sun D, Xu Z. Molecular structure-tuned stability and switchability of CO 2-responsive oil-in-water emulsions. J Colloid Interface Sci 2022; 627:661-670. [PMID: 35872422 DOI: 10.1016/j.jcis.2022.07.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Revised: 06/28/2022] [Accepted: 07/01/2022] [Indexed: 11/18/2022]
Abstract
HYPOTHESIS Pseudo-Gemini surfactants (PGS) possessing switchable and recyclable features have drawn increasing attention on generating high-performance CO2-responsive emulsions for wide range and versatile applications. However, there is a lack of fundamental understanding on how the molecular structure of PGS affects the stability and switchability of emulsions. We hypothesize that the length and type of the spacer in PGS play a decisive role in controlling interfacial and switching properties. EXPERIMENTS Two series of PGS with different spacers were prepared through electrostatic association between amines and oleic acid. The interfacial activity and CO2-responsive properties of corresponding emulsions were systematically investigated by well-designed experiments and molecular dynamics simulations. FINDINGS Increasing the spacer length to allow the bent configuration leads to more tight arrangement of oleic molecules, consequently improving the interfacial activity. In addition, the introduction of amino group into the spacer dramatically promotes CO2 response of resulting PGS due to ehanced migration of the spacer from the interface to the aqueous phase after CO2 addition. These results are inspiring in designing controllable CO2-responsive emulsions for a wide range of industrial applications (e.g., enhanced oil recovery and oil-contaminated soil remediation).
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Affiliation(s)
- Lingfei Liu
- Department of Materials Science and Engineering, Shenzhen Key Laboratory of Interfacial Science and Engineering of Materials, Southern University of Science and Technology, Shenzhen 518055, China
| | - Mingshan Zhang
- School of Mining and Petroleum Engineering, Department of Civil and Environmental Engineering, University of Alberta, Edmonton, AB T6G 1H9, Canada
| | - Zhouguang Lu
- Department of Materials Science and Engineering, Shenzhen Key Laboratory of Interfacial Science and Engineering of Materials, Southern University of Science and Technology, Shenzhen 518055, China
| | - Zhehui Jin
- School of Mining and Petroleum Engineering, Department of Civil and Environmental Engineering, University of Alberta, Edmonton, AB T6G 1H9, Canada
| | - Yi Lu
- Bioproducts Institute, Department of Chemical and Biological Engineering, Department of Chemistry and Department of Wood Science, University of British Columbia, Vancouver, BC V6T 1Z3, Canada.
| | - Dejun Sun
- Key Laboratory of Colloid and Interface Chemistry, Shandong University, Ministry of Education, Jinan, Shandong 250100, China
| | - Zhenghe Xu
- Department of Materials Science and Engineering, Shenzhen Key Laboratory of Interfacial Science and Engineering of Materials, Southern University of Science and Technology, Shenzhen 518055, China.
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15
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Reifarth M, Bekir M, Bapolisi AM, Titov E, Nußhardt F, Nowaczyk J, Grigoriev D, Sharma A, Saalfrank P, Santer S, Hartlieb M, Böker A. A Dual pH‐ and Light‐Responsive Spiropyran‐Based Surfactant: Investigations on Its Switching Behavior and Remote Control over Emulsion Stability. Angew Chem Int Ed Engl 2022; 61:e202114687. [PMID: 35178847 PMCID: PMC9400902 DOI: 10.1002/anie.202114687] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Indexed: 11/10/2022]
Abstract
A cationic surfactant containing a spiropyran unit is prepared exhibiting a dual‐responsive adjustability of its surface‐active characteristics. The switching mechanism of the system relies on the reversible conversion of the non‐ionic spiropyran (SP) to a zwitterionic merocyanine (MC) and can be controlled by adjusting the pH value and via light, resulting in a pH‐dependent photoactivity: While the compound possesses a pronounced difference in surface activity between both forms under acidic conditions, this behavior is suppressed at a neutral pH level. The underlying switching processes are investigated in detail, and a thermodynamic explanation based on a combination of theoretical and experimental results is provided. This complex stimuli‐responsive behavior enables remote‐control of colloidal systems. To demonstrate its applicability, the surfactant is utilized for the pH‐dependent manipulation of oil‐in‐water emulsions.
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Affiliation(s)
- Martin Reifarth
- University of Potsdam Institute of Chemistry Karl-Liebknecht-Straße 24–25 14476 Potsdam Germany
- Fraunhofer Institute for Applied Polymer Research (IAP) Geiselbergstraße 69 14476 Potsdam Germany
| | - Marek Bekir
- University of Potsdam Institute of Physics and Astronomy Karl-Liebknecht-Straße 24–25 14476 Potsdam Germany
| | - Alain M. Bapolisi
- University of Potsdam Institute of Chemistry Karl-Liebknecht-Straße 24–25 14476 Potsdam Germany
| | - Evgenii Titov
- University of Potsdam Institute of Chemistry Karl-Liebknecht-Straße 24–25 14476 Potsdam Germany
| | - Fabian Nußhardt
- Fraunhofer Institute for Applied Polymer Research (IAP) Geiselbergstraße 69 14476 Potsdam Germany
| | - Julius Nowaczyk
- University of Potsdam Institute of Chemistry Karl-Liebknecht-Straße 24–25 14476 Potsdam Germany
- Fraunhofer Institute for Applied Polymer Research (IAP) Geiselbergstraße 69 14476 Potsdam Germany
| | - Dmitry Grigoriev
- Fraunhofer Institute for Applied Polymer Research (IAP) Geiselbergstraße 69 14476 Potsdam Germany
| | - Anjali Sharma
- University of Potsdam Institute of Physics and Astronomy Karl-Liebknecht-Straße 24–25 14476 Potsdam Germany
| | - Peter Saalfrank
- University of Potsdam Institute of Chemistry Karl-Liebknecht-Straße 24–25 14476 Potsdam Germany
| | - Svetlana Santer
- University of Potsdam Institute of Physics and Astronomy Karl-Liebknecht-Straße 24–25 14476 Potsdam Germany
| | - Matthias Hartlieb
- University of Potsdam Institute of Chemistry Karl-Liebknecht-Straße 24–25 14476 Potsdam Germany
- Fraunhofer Institute for Applied Polymer Research (IAP) Geiselbergstraße 69 14476 Potsdam Germany
| | - Alexander Böker
- University of Potsdam Institute of Chemistry Karl-Liebknecht-Straße 24–25 14476 Potsdam Germany
- Fraunhofer Institute for Applied Polymer Research (IAP) Geiselbergstraße 69 14476 Potsdam Germany
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16
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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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17
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Wang Y, Yuan J, Dong S, Hao J. Multilayer-Stabilized Water-in-Water Emulsions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:4713-4721. [PMID: 35384674 DOI: 10.1021/acs.langmuir.2c00271] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Water-in-water (W/W) emulsions are of interest for various applications due to their inherent biocompatibility, ultralow interfacial tensions, and large interface thickness. However, it is still challenging to prepare stable W/W emulsions with tailored phase architectures compared to oil-in-water (O/W) and water-in-oil (W/O) emulsions. Here, we report a multilayer-stabilized W/W emulsion composed of poly(ethylene glycol)/dextran in the presence of DNA strands. The W/W emulsions present onion-ring-like structures, which are interpreted by a nanofluid film model. Emulsion behavior, e.g., stability, interface tension, etc., can be controlled by the type of DNA (single or double strands), DNA concentration, and volume fraction of dispersed phase. Our findings could broaden the preparation of novel emulsions for potential applications in emulsion polymerization, new media of homogeneous catalysis, and DNA transportation of water-in-water media.
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Affiliation(s)
- Yitong Wang
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, Shandong University, Jinan 250100, China
| | - Jin Yuan
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, Shandong University, Jinan 250100, China
| | - Shuli Dong
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, Shandong University, Jinan 250100, China
| | - Jingcheng Hao
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, Shandong University, Jinan 250100, China
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18
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Xi Y, Liu B, Wang S, Wei S, Yin S, Ngai T, Yang X. CO 2-responsive Pickering emulsions stabilized by soft protein particles for interfacial biocatalysis. Chem Sci 2022; 13:2884-2890. [PMID: 35432851 PMCID: PMC8905849 DOI: 10.1039/d1sc06146a] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 01/18/2022] [Indexed: 12/17/2022] Open
Abstract
Pickering emulsions are emulsions stabilized by colloidal particles and serve as an excellent platform for biphasic enzymatic catalysis. However, developing simple and green strategies to avoid enzyme denaturation, facilitate product separation, and achieve the recovery of enzyme and colloidal particle stabilizers is still a challenge. This study aimed to report an efficient and sustainable biocatalysis system via a robust CO2/N2-responsive Pickering oil-in-water (o/w) emulsion stabilized solely by pure sodium caseinate (NaCas), which was made naturally in a scalable manner. The NaCas-stabilized emulsion displayed a much higher reaction efficiency compared with conventional CO2/N2-responsive Pickering emulsions stabilized by solid particles with functional groups from polymers or surfactants introduced to tailor responsiveness, reflected by the fact that most enzymes were transferred and enriched at the oil-water interface. More importantly, the demulsification, product separation, and recycling of the NaCas emulsifier as well as the enzyme could be facilely achieved by alternatively bubbling CO2/N2 more than 30 times. Moreover, the recycled enzyme still maintained its catalytic activity, with a conversion yield of more than 90% after each cycle, which was not found in any of the previously reported CO2-responsive systems. This responsive system worked well for many different types of oils and was the first to report on a protein-based CO2/N2-responsive emulsion, holding great promise for the development of more sustainable, green chemical conversion processes for the food, pharmaceutical, and biomedical industries.
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Affiliation(s)
- Yongkang Xi
- Research and Development Centre of Food Proteins, School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products Safety, South China University of Technology Guangzhou 510640 P. R. China
| | - Bo Liu
- Research and Development Centre of Food Proteins, School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products Safety, South China University of Technology Guangzhou 510640 P. R. China
| | - Shuxin Wang
- Research and Development Centre of Food Proteins, School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products Safety, South China University of Technology Guangzhou 510640 P. R. China
| | - Shuheng Wei
- Research and Development Centre of Food Proteins, School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products Safety, South China University of Technology Guangzhou 510640 P. R. China
| | - Shouwei Yin
- Research and Development Centre of Food Proteins, School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products Safety, South China University of Technology Guangzhou 510640 P. R. China .,Sino-Singapore International Joint Research Institute Guangzhou 510640 P. R. China.,Research Institute for Food Nutrition and Human Health Guangzhou P. R. China
| | - To Ngai
- Department of Chemistry, The Chinese University of Hong Kong Shatin N. T. Hong Kong
| | - Xiaoquan Yang
- Research and Development Centre of Food Proteins, School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products Safety, South China University of Technology Guangzhou 510640 P. R. China
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19
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Reifarth M, Bekir M, Bapolisi AM, Titov E, Nußhardt F, Nowaczyk J, Grigoriev D, Sharma A, Saalfrank P, Santer S, Hartlieb M, Böker A. A Dual pH and Light‐Responsive Spiropyrane‐Based Surfactant: Investigations on its Switching Behavior and Remote Control over Emulsion Stability. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202114687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Martin Reifarth
- University of Potsdam: Universitat Potsdam Institut für Chemie GERMANY
| | - Marek Bekir
- University of Potsdam: Universitat Potsdam Institut für Chemie GERMANY
| | - Alain M. Bapolisi
- University of Potsdam: Universitat Potsdam Institut für Chemie GERMANY
| | - Evgenii Titov
- University of Potsdam: Universitat Potsdam Institut für Chemie GERMANY
| | - Fabian Nußhardt
- Fraunhofer Institute for Applied Polymer Research: Fraunhofer-Institut fur Angewandte Polymerforschung IAP Life Sciences and Bioprocesses GERMANY
| | - Julius Nowaczyk
- University of Potsdam: Universitat Potsdam Institut für Chemie GERMANY
| | - Dmitry Grigoriev
- Fraunhofer Institute for Applied Polymer Research: Fraunhofer-Institut fur Angewandte Polymerforschung IAP Life Sciences and Bioprocesses GERMANY
| | - Anjali Sharma
- University of Potsdam: Universitat Potsdam Institut für Physik GERMANY
| | - Peter Saalfrank
- University of Potsdam: Universitat Potsdam Institut für Chemie GERMANY
| | - Svetlana Santer
- University of Potsdam: Universitat Potsdam Institut für Physik GERMANY
| | - Matthias Hartlieb
- University of Potsdam: Universitat Potsdam Institut für Chemie GERMANY
| | - Alexander Böker
- Universität Potsdam: Universitat Potsdam Lehrstuhl für Polymermaterialien und Polymertechnologienlächen Geiselbergstrasse 69 D-14476 Potsdam GERMANY
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20
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Synthesis, aggregation behavior of alternating copolymer emulsifier in oil solution and its application in oil-based drilling fluids. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.118011] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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21
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Liu P, Zhang S, Pei X, Song B, Jiang J, Cui Z, Binks BP. Recyclable and re-usable smart surfactant for stabilization of various multi-responsive emulsions alone or with nanoparticles. SOFT MATTER 2022; 18:849-858. [PMID: 34982810 DOI: 10.1039/d1sm01660a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
A novel multi-responsive surfactant (abbreviated as N+-8P8-N) was synthesized, in which one octyl trimethylamine group (quaternary ammonium) and one octyl dimethylamine group are connected to a benzene ring through ether bonds. This novel surfactant can stabilize conventional oil-in-water (O/W) emulsions alone, and O/W Pickering emulsions and novel oil-in-dispersion emulsions together with oppositely and similarly charged nanoparticles, respectively. In all cases rapid demulsification can be achieved through either pH or CO2/N2 triggers, by which the surfactant is reversibly converted between a normal cationic surfactant form (N+-8P8-N) and a strongly hydrophilic and surface-inactive bola form (N+-8P8-NH+). Notably, the bola form N+-8P8-NH+ dissolves in the aqueous phase alone or together with nanoparticles after demulsification without contamination of the oil phase, and the aqueous phase can be recycled many times triggered by pH or CO2/N2 in accordance with the principle of green chemistry. This newly designed re-usable smart surfactant is significant for the development of various temporarily stable emulsions, which are extensively applied in emulsion polymerization, new material synthesis, heterogeneous catalysis and oil transportation.
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Affiliation(s)
- Pei Liu
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu, P. R. China.
| | - Sheng Zhang
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu, P. R. China.
| | - Xiaomei Pei
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu, P. R. China.
| | - Binglei Song
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu, P. R. China.
| | - Jianzhong Jiang
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu, P. R. China.
| | - Zhenggang Cui
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi, Jiangsu, P. R. China.
| | - Bernard P Binks
- Department of Chemistry, University of Hull, Hull HU6 7RX, UK.
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22
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Lian X, Liao S, Xu XQ, Zhang S, Wang Y. Self-Stabilizing Encapsulation through Fast Interfacial Polymerization of Ethyl α-Cyanoacrylate: From Emulsions to Microcapsule Dispersions. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01792] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xiaodong Lian
- Key Laboratory of Advanced Light Conversion Materials and Biophotonics, Department of Chemistry, Renmin University of China, Beijing 100872, P. R. China
| | - Shenglong Liao
- Key Laboratory of Advanced Light Conversion Materials and Biophotonics, Department of Chemistry, Renmin University of China, Beijing 100872, P. R. China
| | - Xiao-Qi Xu
- Key Laboratory of Advanced Light Conversion Materials and Biophotonics, Department of Chemistry, Renmin University of China, Beijing 100872, P. R. China
| | - Shoupeng Zhang
- Key Laboratory of Advanced Light Conversion Materials and Biophotonics, Department of Chemistry, Renmin University of China, Beijing 100872, P. R. China
| | - Yapei Wang
- Key Laboratory of Advanced Light Conversion Materials and Biophotonics, Department of Chemistry, Renmin University of China, Beijing 100872, P. R. China
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