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Wang W, Zhou R, Di S, Mao X, Huang WC. Switchable CO 2-Responsive Janus Nanoparticle for Lipase Catalysis in Pickering Emulsion. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:9967-9973. [PMID: 38639643 DOI: 10.1021/acs.jafc.4c00498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
The use of convertible immobilized enzyme carriers is crucial for biphasic catalytic reactions conducted in Pickering emulsions. However, the intense mechanical forces during the conversion process lead to enzyme leakage, affecting the stability of the immobilized enzymes. In this study, a CO2-responsive switchable Janus (CrSJ) nanoparticle (NP) was developed using silica NP, with one side featuring aldehyde groups and the other side adsorbing N,N-dimethyldodecylamine. A switchable Pickering emulsion catalytic system for biphasic interface reactions was prepared by covalently immobilizing lipase onto the CrSJ NPs. The CO2-responsive nature of the CrSJ NPs allowed for rapid conversion of the Pickering emulsion, and covalent immobilization substantially reduced lipase leakage while enhancing the stability of the immobilization during the conversion process. Impressively, after repeated transformations, the Pickering emulsion still maintains its original structure. Following 10 consecutive cycles of esterification and hydrolysis reactions, the immobilized enzyme's activity remains at 77.7 and 79.5% of its initial activity, respectively. The Km of the CrSJ catalytic system showed no significant change compared to the free enzyme, while its Vmax values were 1.2 and 1.6 times that of the free enzyme in esterification and hydrolysis reactions, respectively.
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Affiliation(s)
- Wei Wang
- State Key Laboratory of Marine Food Processing and Safety Control, College of Food Science and Engineering, Ocean University of China, Qingdao 266404, China
- Qingdao Key Laboratory of Food Biotechnology, Qingdao 266404, China
- Key Laboratory of Biological Processing of Aquatic Products, China National Light Industry, Qingdao 266404, China
| | - Ruoyu Zhou
- State Key Laboratory of Marine Food Processing and Safety Control, College of Food Science and Engineering, Ocean University of China, Qingdao 266404, China
- Qingdao Key Laboratory of Food Biotechnology, Qingdao 266404, China
- Key Laboratory of Biological Processing of Aquatic Products, China National Light Industry, Qingdao 266404, China
| | - Simiao Di
- State Key Laboratory of Marine Food Processing and Safety Control, College of Food Science and Engineering, Ocean University of China, Qingdao 266404, China
- Qingdao Key Laboratory of Food Biotechnology, Qingdao 266404, China
- Key Laboratory of Biological Processing of Aquatic Products, China National Light Industry, Qingdao 266404, 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, China
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China
- Qingdao Key Laboratory of Food Biotechnology, Qingdao 266404, China
- Key Laboratory of Biological Processing of Aquatic Products, China National Light Industry, Qingdao 266404, China
| | - Wen-Can Huang
- State Key Laboratory of Marine Food Processing and Safety Control, College of Food Science and Engineering, Ocean University of China, Qingdao 266404, China
- Qingdao Key Laboratory of Food Biotechnology, Qingdao 266404, China
- Key Laboratory of Biological Processing of Aquatic Products, China National Light Industry, Qingdao 266404, China
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Tang C, Chai Y, Wang C, Wang Z, Min J, Wang Y, Qi W, Su R, He Z. Pickering Emulsions Stabilized by Lignin/Chitosan Nanoparticles for Biphasic Enzyme Catalysis. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:12849-12858. [PMID: 36215031 DOI: 10.1021/acs.langmuir.2c01819] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
In this study, we construct a green and high-performance platform using Pickering emulsions for biphasic catalysis. The oil-in-water Pickering emulsions stabilized by the lignin/chitosan nanoparticles (Lig/Chi NPs) have great stability and alkali resistance, showing pH-responsive reversible emulsification and demulsification which can be recycled at least three times. The Pickering emulsion also has fluorescence and wide availability to different oil-to-water volume ratios, types of oil, storage times, temperatures, and ion concentrations. When this system is applied to the lipase-catalyzed reaction for the hydrolysis of p-nitrophenol palmitate, it will provide stable and large oil-water reaction interface areas, and the negatively charged lipase will enrich at the emulsion interface by electrostatic adsorption of the positively charged Lig/Chi NPs to achieve immobilization (lipase-Lig/Chi NPs). The reaction conversion rate can reach nearly 100% in 30 min, which is nearly three times higher than that of the conventional two-phase system. Moreover, the lipases in Pickering emulsion stabilized by Lig/Chi NPs exhibit great recyclability because of the protection of Lig/Chi NPs.
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Affiliation(s)
- Chuanmei Tang
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China
| | - Yingying Chai
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China
| | - Chaoxuan Wang
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China
| | - Zixuan Wang
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China
| | - Jiwei Min
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China
| | - Yuefei Wang
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China
- Tianjin Key Laboratory of Membrane Science and Desalination Technology, Tianjin 300072, P. R. China
| | - Wei Qi
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, P. R. China
- Tianjin Key Laboratory of Membrane Science and Desalination Technology, Tianjin 300072, P. R. China
| | - Rongxin Su
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, P. R. China
- Tianjin Key Laboratory of Membrane Science and Desalination Technology, Tianjin 300072, P. R. China
| | - Zhimin He
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China
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Tong YC, wang QY, Feng M, He QL, Liu Y. Preparing an ATP/P (n‐BuMA‐St)/Fe3O4 Oil‐Absorbing Resin Composite via a Double Pickering Emulsion Template Method and Elucidating of Its Properties. Chempluschem 2022; 87:e202200100. [DOI: 10.1002/cplu.202200100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 06/14/2022] [Indexed: 11/06/2022]
Affiliation(s)
- Yong Chun Tong
- Hexi University College of Chemistry and Chemical Engineering CHINA
| | - qing-yun wang
- Hexi University College of Chemistry and Chemical Engineering Ganzhou district No. 846, Zhangye 734000, China 734000 zhangye CHINA
| | - Min Feng
- Hexi University College of Chemistry and Chemical Engineering CHINA
| | - Qiao Ling He
- Hexi University College of Chemistry and Chemical Engineering CHINA
| | - Yun Liu
- Hexi University College of Chemistry and Chemical Engineering CHINA
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Liu C, Feng S, Ma L, Sun M, Wei Z, Wang J, Chen Z, Guo Y, Shi J, Wu Q. An Amphiphilic Carbonaceous/Nanosilver Composite-Incorporated Urinary Catheter for Long-Term Combating Bacteria and Biofilms. ACS APPLIED MATERIALS & INTERFACES 2021; 13:38029-38039. [PMID: 34357763 DOI: 10.1021/acsami.1c07399] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Biofilms formed on urinary catheters remain a major headache in the modern healthcare system. Among the various kinds of biocide-releasing urinary catheters that have been developed to prevent biofilm formation, Ag nanoparticles (AgNPs)-coated catheters are of great promising potential. However, the deposition of AgNPs on the surface of catheters suffers from several inherent shortcomings, such as damage to the urethral mucosa, uncontrollable Ag ion kinetics, and unexpected systematic toxicity. Here, AgNPs-decorated amphiphilic carbonaceous particles (ACPs@AgNPs) with commendable dispersity in solvents of different polarities and broad-spectrum antibacterial activity are first prepared. The resulting ACPs@AgNPs exert good compatibility with silicone rubber, which enables the easy fabrication of urinary catheters using a laboratory-made mold. Therefore, ACPs@AgNPs not only endow the urinary catheter with forceful biocidal activity but also improve its mechanical properties and surface wettability. Hence, the designed urinary catheter possesses excellent capacity to resist bacterial adhesion and biofilm formation both in vitro and in an in vivo rabbit model. Specifically, a long-term antibacterial study highlights its sustainable antibacterial activity. Of note, no obvious toxicity or inflammation in rabbits was triggered by the designed urinary catheter in vivo. Overall, the hybrid urinary catheter may serve as a promising biocide-releasing urinary catheter for antibacterial and antibiofilm applications.
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Affiliation(s)
- Chaoqun Liu
- College of Pharmacy, Institutes of Environment and Medicine, Henan University, Kaifeng 475004, China
| | - Shan Feng
- College of Pharmacy, Institutes of Environment and Medicine, Henan University, Kaifeng 475004, China
| | - Longyu Ma
- College of Pharmacy, Institutes of Environment and Medicine, Henan University, Kaifeng 475004, China
| | - Mengyao Sun
- College of Pharmacy, Institutes of Environment and Medicine, Henan University, Kaifeng 475004, China
| | - Zhihong Wei
- College of Pharmacy, Institutes of Environment and Medicine, Henan University, Kaifeng 475004, China
| | - Jiaqi Wang
- College of Pharmacy, Institutes of Environment and Medicine, Henan University, Kaifeng 475004, China
| | - Zhaowei Chen
- Institute of Food Safety and Environment Monitoring, College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Yuheng Guo
- Institute of Food Safety and Environment Monitoring, College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Jiahua Shi
- Key Laboratory of Natural Medicine and Immuno-Engineering of Henan Province, Henan University, Kaifeng 475004, China
| | - Qiang Wu
- College of Pharmacy, Institutes of Environment and Medicine, Henan University, Kaifeng 475004, China
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Peng F, Xu J, Xu H, Bao H. Electrostatic Interaction-Controlled Formation of Pickering Emulsion for Continuous Flow Catalysis. ACS APPLIED MATERIALS & INTERFACES 2021; 13:1872-1882. [PMID: 33372761 DOI: 10.1021/acsami.0c17857] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Although noble metal or non-noble metal-catalyzed reactions are widely used, it is still difficult to apply these reactions in the large-scale synthesis of chemicals because most of the reactions are carried out by the inefficient batch reaction strategy. Herein, Pickering emulsion-based continuous flow catalysis was utilized to address this problem. Cellulose nanofibers with aldehyde groups (ACNF) were generated through oxidizing C2 and C3 hydroxyl groups of cellulose nanofibers into aldehyde groups by NaIO4, followed by in situ depositing Ag nanoparticles on ACNF to produce Ag-decorated ACNF (ACNF@Ag) via a facile aldehyde-induced reduction method. ACNF@Ag with ∼2 wt % Ag (ACNF@Ag2) has been used to prepare the Pickering emulsion by controlling the electrostatic interaction between ACNF@Ag2 and the oil-water interface via adjusting the pH. It was found that the Pickering emulsion could be generated at a pH around 3.29 and was determined to be the oil-in-water emulsion. The reduction of organic molecules (4-nitrophenol (4-NP), methylene blue (MB), and methyl orange (MO)) was selected as a model reaction to test the reliability of the Pickering emulsion in continuous flow catalysis, which demonstrated very high conversion rates for 4-NP (>98%, 50 h), MB (>99%, 30 h), and MO (>96%, 40 h).
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Affiliation(s)
- Fangjun Peng
- School of Materials Science and Engineering, Wuhan Textile University, Wuhan 430200, China
- State Key Laboratory of New Textile Materials and Advanced Processing Technology, Wuhan Textile University, Wuhan 430200, China
| | - Jie Xu
- School of Materials Science and Engineering, Wuhan Textile University, Wuhan 430200, China
- State Key Laboratory of New Textile Materials and Advanced Processing Technology, Wuhan Textile University, Wuhan 430200, China
| | - Haolan Xu
- Future Industries Institute, University of South Australia, Mawson Lakes Campus, SA 5095, Australia
| | - Haifeng Bao
- School of Materials Science and Engineering, Wuhan Textile University, Wuhan 430200, China
- State Key Laboratory of New Textile Materials and Advanced Processing Technology, Wuhan Textile University, Wuhan 430200, China
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Huang XM, Luo ZJ, Guo J, Ruan QJ, Wang JM, Yang XQ. Enzyme-Adsorbed Chitosan Nanogel Particles as Edible Pickering Interfacial Biocatalysts and Lipase-Responsive Phase Inversion of Emulsions. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:8890-8899. [PMID: 32687343 DOI: 10.1021/acs.jafc.0c00116] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Here, a simple food-grade Pickering emulsion system is prepared and adopted for biphasic biocatalytic reactions. The chitosan nanogels were prepared with strong dispersion of chitosan aggregates approaching neutral pH and then used as the particle emulsifiers to produce oil-in-water Pickering emulsions. The chitosan nanogel exhibited high affinity to negatively charged lipase. As a result of increasing the biphasic interfacial area and loading amount on the oil-water interface, the catalysis activity of lipase and recycling and pH stability were highly enhanced through colorimetric determination of p-nitrophenol (the hydrolysis product of p-nitrophenyl palmitate). A general strategy was proposed to obtain stimulus-responsive Pickering emulsions that can undergo phase inversion. The in situ modification of the wettability of chitosan nanogel could be attributed to the interaction between nanogel and free fatty acids, which was triggered by lipase hydrolysis. This would permit a rapid and controlled release of hydrophobic active components in response to enzymatic triggers.
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Affiliation(s)
- Xiao-Mei Huang
- Protein Research and Development Center, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, National Engineering Laboratory of Wheat & Corn Further Processing, South China University of Technology, Guangzhou, Guangdong 510640, People's Republic of China
| | - Zhao-Jiao Luo
- Protein Research and Development Center, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, National Engineering Laboratory of Wheat & Corn Further Processing, South China University of Technology, Guangzhou, Guangdong 510640, People's Republic of China
| | - Jian Guo
- Protein Research and Development Center, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, National Engineering Laboratory of Wheat & Corn Further Processing, South China University of Technology, Guangzhou, Guangdong 510640, People's Republic of China
| | - Qi-Jun Ruan
- Protein Research and Development Center, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, National Engineering Laboratory of Wheat & Corn Further Processing, South China University of Technology, Guangzhou, Guangdong 510640, People's Republic of China
- Sericultural & Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences, Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs, Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, Guangdong 510610, People's Republic of China
- Guangdong Engineering and Technology Research Center for Effective Component Testing and Risk Material Rapid Screening of Functional Food, Guangdong Institute of Analysis (China National Analytical Center Guangzhou), Guangdong Academy of Sciences, Guangzhou, Guangdong 510070, People's Republic of China
| | - Jin-Mei Wang
- Protein Research and Development Center, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, National Engineering Laboratory of Wheat & Corn Further Processing, South China University of Technology, Guangzhou, Guangdong 510640, People's Republic of China
| | - Xiao-Quan Yang
- Protein Research and Development Center, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, National Engineering Laboratory of Wheat & Corn Further Processing, South China University of Technology, Guangzhou, Guangdong 510640, People's Republic of China
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Abstract
Abstract
In China, the rapid development greatly promotes the national economic power and living standard but also inevitably brings a series of environmental problems. In order to resolve these problems fundamentally, Chinese scientists have been undertaking research in the area of green chemical engineering (GCE) for many years and achieved great progresses. In this paper, we reviewed the research progresses related to GCE in China and screened four typical topics related to the Chinese resources characteristics and environmental requirements, i.e. ionic liquids and their applications, biomass utilization and bio-based materials/products, green solvent-mediated extraction technologies, and cold plasmas for coal conversion. Afterwards, the perspectives and development tendencies of GCE were proposed, and the challenges which will be faced while developing available industrial technologies in China were mentioned.
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Enzyme-Loaded Mesoporous Silica Particles with Tuning Wettability as a Pickering Catalyst for Enhancing Biocatalysis. Catalysts 2019. [DOI: 10.3390/catal9010078] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Pickering emulsion systems have created new opportunities for two-phase biocatalysis, however their catalytic performance is often hindered by biphasic mass transfer process relying on the interfacial area. In this study, lipase-immobilized mesoporous silica particles (LMSPs) are employed as both Pickering stabilizers and biocatalysts. A series of alkyl silanes with the different carbon length are used to modify LMSPs to obtain suitable wettability and enlarge the interfacial area of Pickering emulsion. The results show the water/paraffin oil Pickering emulsions stabilized by 8 carbon atoms silane grafted LMSPs (LMSPs_C8) with a three-phase contact angles of 95° get the relatively large interfacial area. Moreover, the conversion of enzymatic reaction catalyzed by LMSPs_C8 Pickering emulsion system is 3.4 times higher than that unmodified LMSPs with the reaction time of 10 min. Additionally, the effective recycling of LMSPs is achieved by simple low-speed centrifugation. As evidenced by a 6-cycles reaction of remaining 75% of relative enzymatic activity, the protection of 350–450 nm mesoporous silica particles can alleviate the inactivation of enzyme from the shear stress and make a benefit to form stabile Pickering emulsion. Therefore, the biphasic reactions in the Pickering emulsion system can be effectively enhanced through changing interfacial area only by the means of adjusting the wettability of biocatalysts.
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Xie X, Wang Y, Li X, Wei X, Yang S. Pickering emulsions stabilized by amphiphilic carbonaceous materials derived from wheat straw. Colloids Surf A Physicochem Eng Asp 2018. [DOI: 10.1016/j.colsurfa.2018.08.063] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Jiang H, Li Y, Hong L, Ngai T. Submicron Inverse Pickering Emulsions for Highly Efficient and Recyclable Enzymatic Catalysis. Chem Asian J 2018; 13:3533-3539. [PMID: 29992769 DOI: 10.1002/asia.201800853] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 07/09/2018] [Indexed: 11/08/2022]
Abstract
Herein, we report the utilization of a submicron Pickering emulsion (SPE) for the encapsulation of enzymes (e.g., lipase from Candida sp.) in water droplets that were solely stabilized by hydrophobic solid or mesoporous silica nanoparticles in toluene for use in biphasic reactions. The catalytic performance of encapsulated lipase was evaluated in the esterification of 1-hexanol and hexanoic acid under stirring-free conditions, which was favorable for maintaining enzymatic activity. Remarkably, the SPE significantly increased the specific activity of encapsulated lipase, owing to the exceptionally high water/oil interfacial area and short diffusion distance of the reagents in the SPE. With mesoporous silica nanoparticles, the activity of lipase was approximately 25.5- and 2.8-times higher than that of free lipase and encapsulated lipase in the micron Pickering emulsion, respectively. The higher water/toluene interfacial area was attributed to the smaller submicron-scale water droplets and the increase in the mass transfer of enzymes or substrates was further improved by using mesoporous Pickering stabilizers. In addition, the encapsulated lipase in SPE also demonstrated excellent stability and could be recycled up to 15 times without significant loss of activity.
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Affiliation(s)
- Hang Jiang
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, N. T., Hong Kong
| | - Yunxing Li
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, P. R. China.,Department of Chemistry, The Chinese University of Hong Kong, Shatin, N. T., Hong Kong
| | - Liangzhi Hong
- Department of Polymer Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, P. R. China
| | - To Ngai
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, N. T., Hong Kong
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Wang Z, Liao S, Wang Y. Supramolecular Polymer Emulsifiers for One-step Complex Emulsions. CHINESE JOURNAL OF POLYMER SCIENCE 2017. [DOI: 10.1007/s10118-018-2084-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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