1
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Qin Z, Li Y, Feng N, Fei X, Tian J, Xu L, Wang Y. Modulating the performance of lipase-hydrogel microspheres in a "micro water environment". Colloids Surf B Biointerfaces 2023; 223:113171. [PMID: 36739676 DOI: 10.1016/j.colsurfb.2023.113171] [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: 11/27/2022] [Revised: 01/16/2023] [Accepted: 01/21/2023] [Indexed: 01/24/2023]
Abstract
In our previous work, we successfully stimulated lipase activity in an anhydrous reaction system using porous polyacrylamide hydrogel microsphere (PPAHM) as a carrier of lipase and free water. However, the effect of the existence state and content of water in lipase-porous polyacrylamide hydrogel microsphere (L-PPAHM) on the interfacial activation remained unclear. In this work, L-PPAHM with different water contents were obtained by water mist rehydration and were used to catalyze the synthesis of conjugated linoleic acid ethyl ester (CLA-EE). The results revealed that there were three existence states of water in L-PPAHM: bound water, semi-bound water and free water, and free water provided the "micro water environment" for the interfacial activation of lipase. The reusability of L-PPAHM with different water contents showed that the activity and stability of L-PPAHM could be achieved by varying the water content of L-PPAHM. The proportion of free water in L-PPAHM increased, and the activity of L-PPAHM increased, but the strength of hydrogen bond interaction between PPAHM and lipase weakened, resulting in the decrease of stability. L-PPAHM with 2/3 of water absorption could ensure sufficient immobilized lipase activity and stability, and its water absorption property could reduce the free water generated during esterification, thus increasing the yield of CLA-EE.
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Affiliation(s)
- Zhengqiang Qin
- Instrumental Analysis Center, Dalian Polytechnic University, Dalian 116034, China; School of Biological Engineering, Dalian Polytechnic University, Dalian 116034, China
| | - Yao Li
- School of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China
| | - Nuan Feng
- Instrumental Analysis Center, Dalian Polytechnic University, Dalian 116034, China; School of Biological Engineering, Dalian Polytechnic University, Dalian 116034, China
| | - Xu Fei
- Instrumental Analysis Center, Dalian Polytechnic University, Dalian 116034, China.
| | - Jing Tian
- School of Biological Engineering, Dalian Polytechnic University, Dalian 116034, China.
| | - Longquan Xu
- Instrumental Analysis Center, Dalian Polytechnic University, Dalian 116034, China
| | - Yi Wang
- School of Biological Engineering, Dalian Polytechnic University, Dalian 116034, China
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2
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In situ encapsulation of biologically active ingredients into polymer particles by polymerization in dispersed media. Prog Polym Sci 2023. [DOI: 10.1016/j.progpolymsci.2022.101637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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3
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Tian Q, Zhou W, Cai Q, Pan X, Ma G, Lian G. In situ complex coacervation supported by self-coated polydopamine interlayer on uniform-sized essential oils droplet. J Colloid Interface Sci 2022. [DOI: 10.1016/j.jcis.2022.05.072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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4
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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: 20] [Impact Index Per Article: 10.0] [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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5
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Beyond particle stabilization of emulsions and foams: Proteins in liquid-liquida and liquid-gas interfaces. Adv Colloid Interface Sci 2022; 308:102743. [DOI: 10.1016/j.cis.2022.102743] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 07/04/2022] [Accepted: 07/15/2022] [Indexed: 01/02/2023]
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6
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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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7
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Yin Y, Fei X, Tian J, Xu L, Li Y, Wang Y. Synthesis of lipase-hydrogel microspheres and their application in deacidification of high-acid rice bran oil. NEW J CHEM 2022. [DOI: 10.1039/d2nj03761k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The main challenge of rice bran oil (RBO) as a highly nutritional edible oil is the high content of free fatty acids.
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Affiliation(s)
- Yawen Yin
- Instrumental Analysis Center, Dalian Polytechnic University, 1 Qinggongyuan Road, Dalian, 116034, China
- School of Biological Engineering, Dalian Polytechnic University, 1 Qinggongyuan Road, Dalian, 116034, China
| | - Xu Fei
- Instrumental Analysis Center, Dalian Polytechnic University, 1 Qinggongyuan Road, Dalian, 116034, China
| | - Jing Tian
- School of Biological Engineering, Dalian Polytechnic University, 1 Qinggongyuan Road, Dalian, 116034, China
| | - Longquan Xu
- Instrumental Analysis Center, Dalian Polytechnic University, 1 Qinggongyuan Road, Dalian, 116034, China
| | - Yao Li
- School of Light Industry and Chemical Engineering, Dalian Polytechnic University, 1 Qinggongyuan Road, Dalian, 116034, China
| | - Yi Wang
- School of Biological Engineering, Dalian Polytechnic University, 1 Qinggongyuan Road, Dalian, 116034, China
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8
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Zhu P, Wang Y, Bai X, Pan J. CO2-in-Water Pickering Emulsion-Assisted Polymerization-Induced Self-Assembly of Raspberry-like sorbent microbeads for uranium adsorption. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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9
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A lipase/poly (ionic liquid)-styrene microspheres/PVA composite hydrogel for esterification application. Enzyme Microb Technol 2021; 152:109935. [PMID: 34749020 DOI: 10.1016/j.enzmictec.2021.109935] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 10/08/2021] [Accepted: 10/17/2021] [Indexed: 01/01/2023]
Abstract
Enzymes are particularly attractive as biocatalysts for the green synthesis of chemicals and pharmaceuticals. However, the traditional enzyme purification and separation process is complex and inefficient, which limits the wide application of enzyme catalysis. In this paper, an efficient strategy for enzyme purification and immobilization in one step is proposed. A novel poly (ionic liquid)-styrene microsphere is prepared by molecular design and synthesis for adsorbing and purifying high activity lipase from fermentation broth directly. By optimizing the surface morphologies and charge of the microspheres, the enzyme loading is significantly improved. In order to further stabilize the catalytic environment of lipase, the resulting lipase/poly (ionic liquid)-styrene microspheres are immobilized in physical crosslinking hydrogel to obtain a complex lipase catalytic system, which can be prepared into various shapes according to the requirements of catalytic environment. In the actual catalytic reaction process, this complex lipase catalytic system exhibits excellent catalytic activity (6314.69 ± 21.27 U mg-1) and good harsh environment tolerance compared with the lipase fermentation broth (1672.87 ± 36.68 U mg-1). Under the condition of cyclic catalysis, the complex lipase catalytic system shows the outstanding reusability (After 8 cycles the enzymatic activity is still higher than that of the lipase fermentation broth) and is easily separated from the products.
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10
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Jiang H, Hu X, Li Y, Yang C, Ngai T. Engineering proteinaceous colloidosomes as enzyme carriers for efficient and recyclable Pickering interfacial biocatalysis. Chem Sci 2021; 12:12463-12467. [PMID: 34603677 PMCID: PMC8480340 DOI: 10.1039/d1sc03693a] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 08/17/2021] [Indexed: 01/02/2023] Open
Abstract
Despite Pickering interfacial biocatalysis being a popular topic in biphasic biocatalysis, the development of water-in-oil (w/o) emulsion systems stabilized by single particles remains a challenge. For the first time, hydrophobized proteinaceous colloidosomes with magnetic-responsiveness are developed to function as both an enzyme carrier and emulsifier, achieving a breakthrough in protein-based w/o Pickering bioconversion. Enzyme-loaded protein colloidosomes are synthesized by a facile and mild method via emulsion templating. This system exhibits superior catalytic activity to other systems at the oil–water interface. Besides, feasible enzyme recovery and reusability ensure that this novel system can be employed as an efficient and eco-friendly recyclable platform. Engineering proteinaceous colloidosomes with magnetic-responsiveness are designed as both enzyme carrier and emulsifier, achieving a breakthrough in protein-based w/o Pickering interfacial biocatalysis.![]()
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Affiliation(s)
- Hang Jiang
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University Wuxi 214122 P. R. China
| | - Xiaofeng Hu
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University Wuxi 214122 P. R. China
| | - 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
| | - Cheng Yang
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University Wuxi 214122 P. R. China
| | - To Ngai
- 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 P. R. China
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11
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Ma H, Hua Y, Hou Z, Gao F, Zhang X, Shao M, Ma T, Liu M, Li T, Xu J. Adsorption-Reaction Processes Between Gelatin and PDMS-E Emulsion Droplets. ACS OMEGA 2021; 6:13915-13925. [PMID: 34095683 PMCID: PMC8173617 DOI: 10.1021/acsomega.1c01789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Accepted: 05/06/2021] [Indexed: 06/12/2023]
Abstract
In this work, the effects of droplet size and reaction time on the adsorption-reaction processes between gelatin and α-[3-(2,3-epoxypropoxy) propyl]-ω-butyl-polydimethylsiloxane (PDMS-E) emulsion droplets were studied. Gelatin molecules were only physically adsorbed on the surface of the PDMS-E droplet in the 0-75 min range, which was unrelated to the droplet size (100-1000 nm). For the small-size droplets (<410 nm), the physical adsorption proceeded over 75 min followed by agglomeration. For middle-size droplets (410-680 nm), the physical adsorption finished at 125 min; subsequently, the nucleophilic reaction between the primary amino group and the epoxy group began to happen, and globular-like or core-shell colloidal particles were formed. For large-size droplets (>680 nm), the nucleophilic reaction occurred at 75 min and produced core-shell or multi-layered colloidal particles. In a word, the physical absorption or nucleophilic reaction between gelatin and PDMS-E emulsion droplets could be controlled by controlling the droplet size and reaction time. Furthermore, the soft tissue paper coated with large-size droplets exhibited excellent resistance to water permeability and flame-resistant performance, which were carried out by water resistance and flammability tests.
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Affiliation(s)
- Huijun Ma
- Shandong
Provincial Key Laboratory of Molecular Engineering, School of Mathematics
and Statistics, Qilu University of Technology Library, Qilu University of Technology (Shandong Academy of
Sciences), Jinan 250353, P. R. China
| | - Yuai Hua
- Shandong
Provincial Key Laboratory of Molecular Engineering, School of Mathematics
and Statistics, Qilu University of Technology Library, Qilu University of Technology (Shandong Academy of
Sciences), Jinan 250353, P. R. China
| | - Zhaosheng Hou
- Shandong
Provincial Key Laboratory of Molecular Engineering, School of Mathematics
and Statistics, Qilu University of Technology Library, Qilu University of Technology (Shandong Academy of
Sciences), Jinan 250353, P. R. China
- College
of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250100, P. R. China
| | - Feng Gao
- Shandong
Provincial Key Laboratory of Molecular Engineering, School of Mathematics
and Statistics, Qilu University of Technology Library, Qilu University of Technology (Shandong Academy of
Sciences), Jinan 250353, P. R. China
| | - Xiao Zhang
- Shandong
Provincial Key Laboratory of Molecular Engineering, School of Mathematics
and Statistics, Qilu University of Technology Library, Qilu University of Technology (Shandong Academy of
Sciences), Jinan 250353, P. R. China
| | - Mingxia Shao
- Shandong
Provincial Key Laboratory of Molecular Engineering, School of Mathematics
and Statistics, Qilu University of Technology Library, Qilu University of Technology (Shandong Academy of
Sciences), Jinan 250353, P. R. China
| | - Tiange Ma
- Shandong
Provincial Key Laboratory of Molecular Engineering, School of Mathematics
and Statistics, Qilu University of Technology Library, Qilu University of Technology (Shandong Academy of
Sciences), Jinan 250353, P. R. China
| | - Mingxia Liu
- Department
of Blood Transfusion, Shandong Provincial
Hospital Affiliated to Shandong First Medical University, Jinan 250021, P. R. China
| | - Tianduo Li
- Shandong
Provincial Key Laboratory of Molecular Engineering, School of Mathematics
and Statistics, Qilu University of Technology Library, Qilu University of Technology (Shandong Academy of
Sciences), Jinan 250353, P. R. China
| | - Jing Xu
- Shandong
Provincial Key Laboratory of Molecular Engineering, School of Mathematics
and Statistics, Qilu University of Technology Library, Qilu University of Technology (Shandong Academy of
Sciences), Jinan 250353, P. R. China
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12
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The Electric Field Responses of Inorganic Ionogels and Poly(ionic liquid)s. Molecules 2020; 25:molecules25194547. [PMID: 33020439 PMCID: PMC7583963 DOI: 10.3390/molecules25194547] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 09/29/2020] [Accepted: 09/30/2020] [Indexed: 01/21/2023] Open
Abstract
Ionic liquids (ILs) are a class of pure ions with melting points lower than 100 °C. They are getting more and more attention because of their high thermal stability, high ionic conductivity and dielectric properties. The unique dielectric properties aroused by the ion motion of ILs makes ILs-contained inorganics or organics responsive to electric field and have great application potential in smart electrorheological (ER) fluids which can be used as the electro-mechanical interface in engineering devices. In this review, we summarized the recent work of various kinds of ILs-contained inorganic ionogels and poly(ionic liquid)s (PILs) as ER materials including their synthesis methods, ER responses and dielectric analysis. The aim of this work is to highlight the advantage of ILs in the synthesis of dielectric materials and their effects in improving ER responses of the materials in a wide temperature range. It is expected to provide valuable suggestions for the development of ILs-contained inorganics and PILs as electric field responsive materials.
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13
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Milyaeva OY, Akent’ev AV, Bykov AG, Zerov AV, Isakov NA, Noskov BA. Compression Isotherms of Polydopamine Films. COLLOID JOURNAL 2020. [DOI: 10.1134/s1061933x20050129] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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14
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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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15
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Jiang H, Sheng Y, Ngai T. Pickering emulsions: Versatility of colloidal particles and recent applications. Curr Opin Colloid Interface Sci 2020; 49:1-15. [PMID: 32390759 PMCID: PMC7205700 DOI: 10.1016/j.cocis.2020.04.010] [Citation(s) in RCA: 183] [Impact Index Per Article: 45.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
The versatility of colloidal particles endows the particle stabilized or Pickering emulsions with unique features and can potentially enable the fabrication of a wide variety of derived materials. We review the evolution and breakthroughs in the research on the use of colloidal particles for the stabilization of Pickering emulsions in recent years for the particle categories of inorganic particles, polymer-based particles, and food-grade particles. Moreover, based on the latest works, several emulsions stabilized by the featured particles and their derived functional materials, including enzyme immobilized emulsifiers for interfacial catalysis, 2D colloidal materials stabilized emulsions as templates for porous materials, and Pickering emulsions as adjuvant formulations, are also summarized. Finally, we point out the gaps in the current research on the applications of Pickering emulsions and suggest future directions for the design of particulate stabilizers and preparation methods for Pickering emulsions and their derived materials. We review the evolution and breakthroughs in the research on the use of colloidal particles for the stabilization of Pickering emulsions in recent years for the particle categories of inorganic particles, polymer-based particles, and food-grade particles. We discuss recent emulsions stabilized by the featured particles and their derived functional materials, including enzyme immobilized emulsifiers for interfacial catalysis, 2D colloidal materials stabilized emulsions as templates for porous materials, and Pickering emulsions as adjuvant formulations. We point out the gaps in the current research on the applications of Pickering emulsions and suggest future directions for the design of particulate stabilizers and preparation methods for Pickering emulsions and their derived materials.
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Affiliation(s)
- Hang Jiang
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, N. T., Hong Kong, China
| | - Yifeng Sheng
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, N. T., Hong Kong, China
| | - To Ngai
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, N. T., Hong Kong, China
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16
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Affiliation(s)
- Árpád Molnár
- Department of Organic Chemistry University of Szeged Dóm tér 8 Szeged 6720 Hungary
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17
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Jiang H, Liu L, Li Y, Yin S, Ngai T. Inverse Pickering Emulsion Stabilized by Binary Particles with Contrasting Characteristics and Functionality for Interfacial Biocatalysis. ACS APPLIED MATERIALS & INTERFACES 2020; 12:4989-4997. [PMID: 31909591 DOI: 10.1021/acsami.9b16117] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Water-in-oil (w/o) Pickering emulsions have received considerable attention in biphasic enzymatic catalysis for their advantages of good stability, large interfacial area, and ease of product separation. However, enzymes are commonly encapsulated in the interior of aqueous droplets, which inevitably increases the diffusional resistance to catalysis. Alternatively, enzymes are immobilized or trapped into Pickering stabilizers. Often, however, these approaches suffer from leaching and a decrease of enzyme activity during the chemical treatments. We report here a new Pickering interfacial biocatalysis platform with efficient enzyme encapsulation, binary particle composition, and high catalytic performance. Our approach is based on w/o Pickering emulsions stabilized by binary particles consisting of hard silica and soft, pH-responsive microgel particles. We demonstrate that pH-responsive microgels can simultaneously stabilize a w/o Pickering emulsion, encapsulate enzymes, and catalyze reactions at the water/oil interface. In addition, we show that the coordination with rigid silica nanoparticles as additional stabilizers markedly improves the emulsion structure and will provide a new avenue for the preparation of w/o Pickering emulsion and concept of biphasic catalysis.
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Affiliation(s)
- Hang Jiang
- Department of Chemistry , The Chinese University of Hong Kong , Shatin , N.T., Hong Kong , P. R. China
| | - Liangdong Liu
- Department of Chemistry , The Chinese University of Hong Kong , Shatin , N.T., Hong Kong , P. R. China
| | - Yunxing Li
- Department of Chemistry , The Chinese University of Hong Kong , Shatin , N.T., Hong Kong , P. R. China
- The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering , Jiangnan University , Wuxi 214122 , P. R. China
| | - Shouwei Yin
- Research and Development Centre of Food Proteins, School of Food Science and Engineering , South China University of Technology , Guangzhou 510640 , P. R. China
| | - To Ngai
- Department of Chemistry , The Chinese University of Hong Kong , Shatin , N.T., Hong Kong , P. R. China
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18
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Cheng W, Li Y, Li X, Bai W, Liang Y. Preparation and characterization of PDA/SiO2 nanofilm constructed macroporous monolith and its application in lipase immobilization. J Taiwan Inst Chem Eng 2019. [DOI: 10.1016/j.jtice.2019.09.013] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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19
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Cyclodextrin glucosyltransferase immobilization on polydopamine-coated Fe3O4 nanoparticles in the presence of polyethyleneimine for efficient β-cyclodextrin production. Biochem Eng J 2019. [DOI: 10.1016/j.bej.2019.107264] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Xia Y, Na X, Wu J, Ma G. The Horizon of the Emulsion Particulate Strategy: Engineering Hollow Particles for Biomedical Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1801159. [PMID: 30260511 DOI: 10.1002/adma.201801159] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Revised: 07/06/2018] [Indexed: 05/13/2023]
Abstract
With their hierarchical structures and the substantial surface areas, hollow particles have gained immense research interest in biomedical applications. For scalable fabrications, emulsion-based approaches have emerged as facile and versatile strategies. Here, the recent achievements in this field are unfolded via an "emulsion particulate strategy," which addresses the inherent relationship between the process control and the bioactive structures. As such, the interior architectures are manipulated by harnessing the intermediate state during the emulsion revolution (intrinsic strategy), whereas the external structures are dictated by tailoring the building blocks and solidification procedures of the Pickering emulsion (extrinsic strategy). Through integration of the intrinsic and extrinsic emulsion particulate strategy, multifunctional hollow particles demonstrate marked momentum for label-free multiplex detections, stimuli-responsive therapies, and stem cell therapies.
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Affiliation(s)
- Yufei Xia
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Xiangming Na
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Jie Wu
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- PLA Key Laboratory of Biopharmaceutical Production & Formulation Engineering Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Guanghui Ma
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- PLA Key Laboratory of Biopharmaceutical Production & Formulation Engineering Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing, 211816, P. R. China
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21
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Tang C, Li Y, Pun J, Mohamed Osman AS, Tam KC. Polydopamine microcapsules from cellulose nanocrystal stabilized Pickering emulsions for essential oil and pesticide encapsulation. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.03.049] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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22
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Feng Y, Lee Y. Microfluidic fabrication of wrinkled protein microcapsules and their nanomechanical properties affected by protein secondary structure. J FOOD ENG 2019. [DOI: 10.1016/j.jfoodeng.2018.10.028] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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23
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Ma H, Hua Y, Zhu C, Hou Z, Zhao B, Pu Y, Cai Z, Zhang L, Li T, Xu J. Reaction Kinetics at PDMS-E Emulsion Droplet-Gelatin Interface. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:894-900. [PMID: 30607955 DOI: 10.1021/acs.langmuir.8b03633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
In this work, interfacial reaction kinetics between α-[3-(2,3-epoxypropoxy)propyl]-ω-butyl-polydimethylsiloxane emulsion droplets with different sizes and gelatin was studied. The results of amino conversion rate determination show that the reaction proceeded in two steps. Fluorescence spectra analysis indicates that step 1 (0-2 h) should be the adsorption of gelatin on droplet surface. In step 2 (2-13 h), amino conversion rate increased rapidly. The reaction rate in step 2 ( k2) was obtained by using the 2nd-order approach to model the grafting reaction kinetics. The quantitative relationships among amino conversion rate, droplet size, the concentration of surfactant, reaction temperature, and time were described by linear regression models in given ranges of conditions in step 2. Thermodynamic analysis indicates that the interfacial reaction is an endothermic reaction. After 13 h, the reaction was almost stopped.
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Affiliation(s)
- Huijun Ma
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Pharmaceutical Engineering; College of Mathematics and Statistics , Qilu University of Technology (Shandong Academy of Sciences) , Jinan 250353 , P. R. China
| | - Yuai Hua
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Pharmaceutical Engineering; College of Mathematics and Statistics , Qilu University of Technology (Shandong Academy of Sciences) , Jinan 250353 , P. R. China
| | - Cong Zhu
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Pharmaceutical Engineering; College of Mathematics and Statistics , Qilu University of Technology (Shandong Academy of Sciences) , Jinan 250353 , P. R. China
| | - Zhaosheng Hou
- College of Chemistry, Chemical Engineering and Materials Science , Shandong Normal University , Jinan 250100 , P. R. China
| | - Bo Zhao
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Pharmaceutical Engineering; College of Mathematics and Statistics , Qilu University of Technology (Shandong Academy of Sciences) , Jinan 250353 , P. R. China
| | - Yongli Pu
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Pharmaceutical Engineering; College of Mathematics and Statistics , Qilu University of Technology (Shandong Academy of Sciences) , Jinan 250353 , P. R. China
| | - Zhaoning Cai
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Pharmaceutical Engineering; College of Mathematics and Statistics , Qilu University of Technology (Shandong Academy of Sciences) , Jinan 250353 , P. R. China
| | - Liangli Zhang
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Pharmaceutical Engineering; College of Mathematics and Statistics , Qilu University of Technology (Shandong Academy of Sciences) , Jinan 250353 , P. R. China
| | - Tianduo Li
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Pharmaceutical Engineering; College of Mathematics and Statistics , Qilu University of Technology (Shandong Academy of Sciences) , Jinan 250353 , P. R. China
| | - Jing Xu
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Pharmaceutical Engineering; College of Mathematics and Statistics , Qilu University of Technology (Shandong Academy of Sciences) , Jinan 250353 , P. R. China
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24
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Han X, Zhang H, Zheng J. Ultrasensitive Electrochemical Immunoassay Based on Cargo Release from Nanosized PbS Colloidosomes. Anal Chem 2019; 91:2224-2230. [DOI: 10.1021/acs.analchem.8b04807] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Xiujuan Han
- Ministry of Education Key Laboratory of Synthetic and Natural Functional Molecular Chemistry, College of Chemistry and Materials Science, Northwest University, Xi’an 710127, China
| | - Hongfang Zhang
- Ministry of Education Key Laboratory of Synthetic and Natural Functional Molecular Chemistry, College of Chemistry and Materials Science, Northwest University, Xi’an 710127, China
| | - Jianbin Zheng
- Ministry of Education Key Laboratory of Synthetic and Natural Functional Molecular Chemistry, College of Chemistry and Materials Science, Northwest University, Xi’an 710127, China
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25
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Ojala J, Visanko M, Laitinen O, Österberg M, Sirviö JA, Liimatainen H. Emulsion Stabilization with Functionalized Cellulose Nanoparticles Fabricated Using Deep Eutectic Solvents. Molecules 2018; 23:molecules23112765. [PMID: 30366392 PMCID: PMC6278293 DOI: 10.3390/molecules23112765] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 10/18/2018] [Accepted: 10/24/2018] [Indexed: 11/25/2022] Open
Abstract
In this experiment, the influence of the morphology and surface characteristics of cellulosic nanoparticles (i.e., cellulose nanocrystals [CNCs] and cellulose nanofibers [CNFs]) on oil-in-water (o/w) emulsion stabilization was studied using non-modified or functionalized nanoparticles obtained following deep eutectic solvent (DES) pre-treatments. The effect of the oil-to-water ratio (5, 10, and 20 wt.-% (weight percent) of oil), the type of nanoparticle, and the concentration of the particles (0.05–0.2 wt.-%) on the oil-droplet size (using laser diffractometry), o/w emulsion stability (via analytical centrifugation), and stabilization mechanisms (using field emission scanning electron microscopy with the model compound—i.e., polymerized styrene in water emulsions) were examined. All the cellulosic nanoparticles studied decreased the oil droplet size in emulsion (sizes varied from 22.5 µm to 8.9 µm, depending on the nanoparticle used). Efficient o/w emulsion stabilization against coalescence and an oil droplet-stabilizing web-like structure were obtained only, however, with surface-functionalized CNFs, which had a moderate hydrophilicity level. CNFs without surface functionalization did not prevent either the coalescence or the creaming of emulsions, probably due to the natural hydrophobicity of the nanoparticles and their instability in water. Moderately hydrophilic CNCs, on the other hand, distributed evenly and displayed good interaction with both dispersion phases. The rigid structure of CNCs meant, however, that voluminous web structures were not formed on the surface of oil droplets; they formed in flat, uniform layers instead. Consequently, emulsion stability was lower with CNCs, when compared with surface-functionalized CNFs. Tunable cellulose nanoparticles can be used in several applications such as in enhanced marine oil response.
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Affiliation(s)
- Jonna Ojala
- Fibre and Particle Engineering Research Unit, University of Oulu, P.O. Box 4300, FI-90014 Oulu, Finland.
| | - Miikka Visanko
- Fibre and Particle Engineering Research Unit, University of Oulu, P.O. Box 4300, FI-90014 Oulu, Finland.
| | - Ossi Laitinen
- Fibre and Particle Engineering Research Unit, University of Oulu, P.O. Box 4300, FI-90014 Oulu, Finland.
| | - Monika Österberg
- Department of Bioproducts and Biosystems, Aalto University, P.O. Box 16300, FI-00076 Aalto, Finland.
| | - Juho Antti Sirviö
- Fibre and Particle Engineering Research Unit, University of Oulu, P.O. Box 4300, FI-90014 Oulu, Finland.
| | - Henrikki Liimatainen
- Fibre and Particle Engineering Research Unit, University of Oulu, P.O. Box 4300, FI-90014 Oulu, Finland.
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26
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Zhu G, Zhang M, Bu Y, Lu L, Lou X, Zhu L. Enzyme-Embedded Metal-Organic Framework Colloidosomes via an Emulsion-Based Approach. Chem Asian J 2018; 13:2891-2896. [DOI: 10.1002/asia.201800976] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Revised: 07/28/2018] [Indexed: 11/07/2022]
Affiliation(s)
- Guixian Zhu
- Beijing Key Laboratory for Optoelectronics Measurement Technology; Beijing Information Science and Technology University; No. 12, Xiaoying East Road Beijing 100016 China
| | - Mizhen Zhang
- Beijing Key Laboratory for Optoelectronics Measurement Technology; Beijing Information Science and Technology University; No. 12, Xiaoying East Road Beijing 100016 China
| | - Yang Bu
- College of Materials Sciences and Optoelectronics; University of Chinese Academy of Sciences; No. 19(A) Yuquan Road Beijing 100049 China
| | - Lidan Lu
- School of Precision Instrument and Opto-electronics Engineering; Tianjin University; No.92 Weijin Road Tianjin 300072 China
| | - Xiaoping Lou
- Beijing Key Laboratory for Optoelectronics Measurement Technology; Beijing Information Science and Technology University; No. 12, Xiaoying East Road Beijing 100016 China
| | - Lianqing Zhu
- Beijing Key Laboratory for Optoelectronics Measurement Technology; Beijing Information Science and Technology University; No. 12, Xiaoying East Road Beijing 100016 China
- School of Instrument and Opto-electronics Engineering; Hefei University of Technology; No.193 Xitun Road Anhui 230009 China
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27
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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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28
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Xiong Y, Wang Q, Duan M, Xu J, Chen J, Fang S. Preparation of Molecularly Imprinted Microspheres as Biomimetic Recognition Material for In Situ Adsorption and Selective Chemiluminescence Determination of Bisphenol A. Polymers (Basel) 2018; 10:polym10070780. [PMID: 30960705 PMCID: PMC6403925 DOI: 10.3390/polym10070780] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 07/03/2018] [Accepted: 07/13/2018] [Indexed: 11/16/2022] Open
Abstract
Bisphenol A (BPA) is an endocrine disrupter in environments which can induce abnormal differentiation of reproductive organs by interfering with the action of endogenous gonadal steroid hormones. In this work, the bisphenol A (BPA) molecularly-imprinted microspheres (MIMS) were prepared and used as biomimetic recognition material for in situ adsorption and selective chemiluminescence (CL) determination of BPA. Through non-covalent interaction, the BPA-MIMS was successfully prepared by Pickering emulsion polymerization using a BPA template, 4-vinylpyridine (4-VP) monomer, ethylene glycol dimethacrylate (EGDMA) cross-linker, and a SiO2 dispersion agent. The characterization of scanning electron microscopy (SEM) and energy-disperse spectroscopy (EDS) showed that the obtained MIMS possessed a regular spherical shape and narrow diameter distribution (25–30 μm). The binding experiment indicated BPA could be adsorbed in situ on the MIMS-packing cell with an apparent maximum amount Qmax of 677.3 μg g−1. Then BPA could be selectively detected by its sensitive inhibition effect on the CL reaction between luminol and periodate (KIO4), and the inhibition mechanism was discussed to reveal the CL reaction process. The CL intensity was linear to BPA concentrations in two ranges, respectively from 0.5 to 1.5 μg mL−1 with a detection limit of 8.0 ng mL−1 (3σ), and from 1.5 to 15 μg mL−1 with a limit of detection (LOD) of 80 ng mL−1 (3σ). The BPA-MIPMS showed excellent selectivity for BPA adsorption and the proposed CL method has been successfully applied to BPA determination in environmental water samples.
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Affiliation(s)
- Yan Xiong
- School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, China.
- Oil and Gas Field Applied Chemistry Key Laboratory of Sichuan Province, Southwest Petroleum University, Chengdu 610500, China.
| | - Qing Wang
- School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, China.
| | - Ming Duan
- School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, China.
- Oil and Gas Field Applied Chemistry Key Laboratory of Sichuan Province, Southwest Petroleum University, Chengdu 610500, China.
| | - Jing Xu
- Liaoning Entry-Exit Inspection and Quarantine Bureau, Dalian 116001, China.
| | - Jie Chen
- School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, China.
| | - Shenwen Fang
- School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, China.
- Oil and Gas Field Applied Chemistry Key Laboratory of Sichuan Province, Southwest Petroleum University, Chengdu 610500, China.
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29
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Zhao J, Yang D, Shi J, Li J, Zhang S, Wu Y, Jiang Z. Robust and Recyclable Two-Dimensional Nanobiocatalysts for Biphasic Reactions in Pickering Emulsions. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b01297] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jingjing Zhao
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, People’s Republic of China
| | | | - Jiafu Shi
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, People’s Republic of China
| | | | - Shaohua Zhang
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, People’s Republic of China
| | - Yizhou Wu
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, People’s Republic of China
| | - Zhongyi Jiang
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, People’s Republic of China
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30
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31
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Chen J, Zhu C, Yang Z, Wang P, Yue Y, Kitaoka T. Thermally Tunable Pickering Emulsions Stabilized by Carbon-Dot-Incorporated Core-Shell Nanospheres with Fluorescence "On-Off" Behavior. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:273-283. [PMID: 29227679 DOI: 10.1021/acs.langmuir.7b03490] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Lack of deep understanding of nanoparticle (NP) actions at oil/water interface set an obstacle to practical applications of Pickering emulsions. Fluorescence labels fabricated by incorporation of carbon dots (CDs) into poly(N-isopropylacrylamide) (PNIPAM) matrix can not only mark the action of PNIPAM-based NPs in the interface but also reflect the colloidal morphologies of PNIPAM. In this work, we employed coaxial electrospraying for fabricating core-shell nanospheres of cellulose acetate encapsulated by PNIPAM, and facile incorporation of CDs in PNIPAM shells was achieved simultaneously. The coaxial electrosprayed NPs (CENPs) with temperature-dependent wettability can stabilize heptane and toluene in water at 25 °C, respectively, and reversible emulsion break can be triggered by temperature adjustment around the low critical solution temperature (LCST). Remarkably, CENP/CD composites exhibited a fluorescence "on-off" behavior because of the volume phase transition of the PNIPAM shell. CENP/CD composites in Pickering emulsions clearly elucidated the motions of CENPs in response to temperature changes. At temperatures below the LCST, the CENP concentration played an important role in surface coverage of oil droplets. Specifically, the CENP concentration above the minimum concentration for complete emulsification of oil phase led to high surface coverage and two-domain adsorption of CENPs at the interface including primary monolayer anchoring of CENPs on droplets surrounded by interconnected CENP networks, which contributed to the superior stability of the emulsions. Moreover, CENP/CD composites can be recycled with well-preserved core-shell structure and stable fluorescent properties, which offers their great potential applications in sensors and imaging.
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Affiliation(s)
- Jianqiang Chen
- Laboratory of Advanced Environmental & Energy Storage Materials, Department of Environment Engineering, Nanjing Forestry University , 159 Longpan Road, Nanjing 210037, P. R. China
| | - Chenyang Zhu
- Laboratory of Advanced Environmental & Energy Storage Materials, Department of Environment Engineering, Nanjing Forestry University , 159 Longpan Road, Nanjing 210037, P. R. China
| | - Zhen Yang
- School of Chemistry and Materials Science, Jiangsu Provincial Key Laboratory of Material Cycling and Pollution Control, Nanjing Normal University , 1 Wenyuan Road, Nanjing 210023, P. R. China
| | - Ping Wang
- Laboratory of Advanced Environmental & Energy Storage Materials, Department of Environment Engineering, Nanjing Forestry University , 159 Longpan Road, Nanjing 210037, P. R. China
| | - Yiying Yue
- Laboratory of Advanced Environmental & Energy Storage Materials, Department of Environment Engineering, Nanjing Forestry University , 159 Longpan Road, Nanjing 210037, P. R. China
| | - Takuya Kitaoka
- Department of Agro-Environmental Sciences, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University , 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan
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32
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Zeng T, Yang D, Li H, Cheng C, Gao Y. The fabrication of amphiphilic double dynamers for responsive Pickering emulsifiers. Polym Chem 2018. [DOI: 10.1039/c7py02067h] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Xylene-in-water Pickering emulsion stabilized by polymer particles that were fabricated by the self-assembly of amphiphilic double dynamers showed temperature- and pH-responsive demulsification feature.
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Affiliation(s)
- Ting Zeng
- College of Chemistry
- Xiangtan University
- Xiangtan
- China
| | | | - Huaming Li
- College of Chemistry
- Xiangtan University
- Xiangtan
- China
- Key Lab of Environment-friendly Chemistry and Application in Ministry of Education
| | - Chong Cheng
- Department of Chemical and Biological Engineering
- University at Buffalo
- The State University of New York
- Buffalo
- USA
| | - Yong Gao
- College of Chemistry
- Xiangtan University
- Xiangtan
- China
- Key Lab of Environment-friendly Chemistry and Application in Ministry of Education
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33
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Deng Z, Shang B, Peng B. Polydopamine Based Colloidal Materials: Synthesis and Applications. CHEM REC 2017; 18:410-432. [PMID: 29124869 DOI: 10.1002/tcr.201700051] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2017] [Accepted: 11/02/2017] [Indexed: 01/29/2023]
Abstract
Polydopamine is a synthetic analogue of natural melanin (eumelanin) produced from oxidative polymerization of dopamine. Owing to its strong adhesion ability, versatile chemical reactivity, biocompatibility and biodegradation, polydopamine is commonly applied as a versatile linker to synthesize colloidal materials with diverse structures, unique physicochemical properties and tunable functions, which allow for a broad scope of applications including biomedicine, sensing, catalysis, environment and energy. In this personal account, we discuss first about the different synthetic approaches of polydopamine, as well as its polymerization mechanism, and then with a comprehensive overview of recent progress in the synthesis and applications of polydopamine-based colloidal materials. Finally, we summarize this personal account with future perspectives.
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Affiliation(s)
- Ziwei Deng
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an, 710062, China
| | - Bin Shang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an, 710062, China
| | - Bo Peng
- Department of Chemistry, Physical and Theoretical Chemistry Laboratory, University of Oxford, South Parks Road, Oxford OX1 3QZ, United Kingdom
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34
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Wang J, Huang R, Qi W, Su R, He Z. Oriented Enzyme Immobilization at the Oil/Water Interface Enhances Catalytic Activity and Recyclability in a Pickering Emulsion. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:12317-12325. [PMID: 28968113 DOI: 10.1021/acs.langmuir.7b02862] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Enzyme-loaded water-in-oil Pickering emulsion is a promising system for biphasic catalytic reactions. In this paper, we report on oriented enzyme immobilization at the oil/water interface in a Pickering emulsion, in which CHO-Janus silica nanoparticles (CHO-JNPs) are utilized as a stabilizer of the emulsion and support for the enzyme to enhance both catalytic activity and recyclability. The catalytic performance of this immobilized enzyme (lipase from Candida sp.) was evaluated by esterification of hexanoic acid and 1-hexanol in a water/heptane biphasic medium. The results show that the specific catalytic activity of the immobilized enzyme (33.2 U mL-1) was 6.5 and 1.4 times higher than that of free enzyme (5.1 U mL-1) and encapsulated enzyme in the liquid core (23.3 U mL-1), respectively. Moreover, the immobilized enzyme demonstrated good stability and recyclability, retaining 75% of its activity after 9 cycles. We expect that oriented enzyme immobilization at the oil/water interface will be an important strategy for enhancing catalytic performance in Pickering emulsions.
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Affiliation(s)
- Jinghui Wang
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University , Tianjin 300072, P. R. China
| | - Renliang Huang
- School of Environmental Science and Engineering, Tianjin University , 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 Key Laboratory of Membrane Science and Desalination Technology, Tianjin University , 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 Key Laboratory of Membrane Science and Desalination Technology, Tianjin University , 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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35
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Cheng Q, Zhang B, He Y, Lu Q, Kaplan DL. Silk Nanofibers as Robust and Versatile Emulsifiers. ACS APPLIED MATERIALS & INTERFACES 2017; 9:35693-35700. [PMID: 28961401 DOI: 10.1021/acsami.7b13460] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Peptides have been extensively studied as emulsifiers due to their sequence and size control, biocompatibility, versatility, and stabilizing capacity. However, cost and mass production remain the challenges for broader utility for these emulsifiers. Here we demonstrate the utility of silk fibroin nanofibers as emulsifiers, with superior functions to the more traditional peptide emulsifiers. This silk nanofiber system is universal for different oil phases with various polarities and demonstrates control of microcapsule size through tuning the ratio of silk fibroin nanofiber solutions to oils. Besides the improved stabilizing capacity to peptides, these silk fibroin nanofibers endow additional stability to the emulsions formed under high salt concentration and low pH. Highly efficient encapsulation of biomarkers through interfacial networks suggests potential applications in therapeutics, food, and cosmetics. Compared to peptide emulsifiers, these silk fibroin nanofibers offer advantages in terms of cost, purification, and production scale, without compromising biocompatibility, stabilizing capacity, and versatility.
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Affiliation(s)
- Qingqing Cheng
- College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University , Suzhou 215123, People's Republic of China
- Key Laboratory of Stem Cells and Biomedical Materials of Jiangsu Province and Chinese Ministry of Science and Technology, Soochow University , Suzhou 215123, People's Republic of China
| | - Bingbo Zhang
- The Institute for Advanced Materials & Nano Biomedicine, Tongji University , Shanghai 200092, People's Republic of China
| | - Yao He
- Institute of Functional Nano & Soft Materials (FUNSOM) and Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University , Suzhou 215123, People's Republic of China
| | - Qiang Lu
- College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University , Suzhou 215123, People's Republic of China
- Key Laboratory of Stem Cells and Biomedical Materials of Jiangsu Province and Chinese Ministry of Science and Technology, Soochow University , Suzhou 215123, People's Republic of China
- National Engineering Laboratory for Modern Silk, Soochow University , Suzhou 215123, People's Republic of China
| | - David L Kaplan
- Department of Biomedical Engineering, Tufts University , Medford, Massachusetts 02155, United States
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36
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Zhu C, Xu J, Hou Z, Liu S, Li T. Scale Effect on the Interface Reaction between PDMS-E Emulsion Droplets and Gelatin. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:9926-9933. [PMID: 28872325 DOI: 10.1021/acs.langmuir.7b02532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In this study, the scale effect on the interface reaction between PDMS-E emulsion droplets and gelatin was studied systematically. The monodisperse α-[3-(2,3-epoxy-propoxy)propyl]-ω-butyl-polydimethylsiloxane (PDMS-E) emulsion droplets on different scales were prepared using a Shirasu porous glass (SPG) membrane with a 0.5 μm pore size. The zeta potential results showed that the surface charge density of PDMS-E droplets decreased with the droplet scale, and the variation went through three stages, which corresponded to the diameter ranges of 100-450, 450-680, and 670-800 nm, respectively. The results of Raman spectra indicated that the distribution concentration of head groups in surfactants decreased but the polar epoxy groups tend to be exposed on the interface with the increase in the droplet scale. This was conducive to the nucleophilic attack of amino groups in gelatin on the epoxy group. Thus, the conversion of amino groups was related to the scale of the PDMS-E droplet. This study might provide a proper way to control the rate of interfacial reaction between immiscible macromolecule monomers.
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Affiliation(s)
- Cong Zhu
- Key Laboratory of Fine Chemicals of Shandong Province, Qilu University of Technology , Jinan 250353, P. R. China
| | - Jing Xu
- Key Laboratory of Fine Chemicals of Shandong Province, Qilu University of Technology , Jinan 250353, P. R. China
| | - Zhaosheng Hou
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University , Jinan 250100, P. R. China
| | - Suqing Liu
- Shandong Province Leather Industrial Research Institute, Jinan 250353, P. R. China
| | - Tianduo Li
- Key Laboratory of Fine Chemicals of Shandong Province, Qilu University of Technology , Jinan 250353, P. R. China
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37
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Immobilization of Thermostable Lipase QLM on Core-Shell Structured Polydopamine-Coated Fe3O4 Nanoparticles. Catalysts 2017. [DOI: 10.3390/catal7020049] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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38
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Lei L, Tang X, Zhu P, Kang Z, Kong T, Wang L. Spreading-induced dewetting for monolayer colloidosomes with responsive permeability. J Mater Chem B 2017; 5:6034-6041. [DOI: 10.1039/c7tb01255a] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
We present a spreading-induced dewetting approach of Pickering emulsion droplets for fabricating monolayer colloidosomes.
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Affiliation(s)
- Leyan Lei
- Department of Mechanical Engineering
- University of Hong Kong
- Hong Kong
- HKU-Zhejiang Institute of Research and Innovation (HKU-ZIRI)
- Hangzhou
| | - Xin Tang
- Department of Mechanical Engineering
- University of Hong Kong
- Hong Kong
- HKU-Zhejiang Institute of Research and Innovation (HKU-ZIRI)
- Hangzhou
| | - Pingan Zhu
- Department of Mechanical Engineering
- University of Hong Kong
- Hong Kong
- HKU-Zhejiang Institute of Research and Innovation (HKU-ZIRI)
- Hangzhou
| | - Zhanxiao Kang
- Department of Mechanical Engineering
- University of Hong Kong
- Hong Kong
- HKU-Zhejiang Institute of Research and Innovation (HKU-ZIRI)
- Hangzhou
| | - Tiantian Kong
- HKU-Zhejiang Institute of Research and Innovation (HKU-ZIRI)
- Hangzhou
- China
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging
- Department of Biomedical Engineering
| | - Liqiu Wang
- Department of Mechanical Engineering
- University of Hong Kong
- Hong Kong
- HKU-Zhejiang Institute of Research and Innovation (HKU-ZIRI)
- Hangzhou
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39
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Tian L, Li X, Zhao P, Ali Z, Zhang Q. Fabrication of Liquid Protrusions on Non-Cross-Linked Colloidal Particles for Shape-Controlled Patchy Microparticles. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b02059] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Lei Tian
- Department of Applied
Chemistry, School of Science, Northwestern Polytechnical University, Xi’an 710072, China
- The Key Laboratory of Space Applied
Physics and Chemistry, Ministry of Education, Northwestern Polytechnical University, Xi’an 710072, China
| | - Xue Li
- Department of Applied
Chemistry, School of Science, Northwestern Polytechnical University, Xi’an 710072, China
- The Key Laboratory of Space Applied
Physics and Chemistry, Ministry of Education, Northwestern Polytechnical University, Xi’an 710072, China
| | - Panpan Zhao
- Department of Applied
Chemistry, School of Science, Northwestern Polytechnical University, Xi’an 710072, China
- The Key Laboratory of Space Applied
Physics and Chemistry, Ministry of Education, Northwestern Polytechnical University, Xi’an 710072, China
| | - Zafar Ali
- Department of Applied
Chemistry, School of Science, Northwestern Polytechnical University, Xi’an 710072, China
- The Key Laboratory of Space Applied
Physics and Chemistry, Ministry of Education, Northwestern Polytechnical University, Xi’an 710072, China
| | - Qiuyu Zhang
- Department of Applied
Chemistry, School of Science, Northwestern Polytechnical University, Xi’an 710072, China
- The Key Laboratory of Space Applied
Physics and Chemistry, Ministry of Education, Northwestern Polytechnical University, Xi’an 710072, China
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40
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Zhang F, Li J, Li X, Yang M, Yang H, Zhang XM. In Situ Surface Engineering of Mesoporous Silica Generates Interfacial Activity and Catalytic Acceleration Effect. ACS OMEGA 2016; 1:930-938. [PMID: 31457173 PMCID: PMC6640749 DOI: 10.1021/acsomega.6b00209] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Accepted: 10/13/2016] [Indexed: 05/22/2023]
Abstract
Mesoporous structured catalysts featuring interfacial activity are the most promising candidates for biphasic interface catalysis because their nanopores can concurrently accommodate catalytic active components and provide countless permeable channels for mass transfer between the interior and the exterior of Pickering droplets. However, to date, a convenient and effective strategy for the preparation of an anchor site-containing interfacial active mesoporous catalyst is still lacking. In the present work, we report a novel and efficient interfacial active mesoporous silica (MS) catalyst, which is prepared by a facile cocondensation of two types of organosilanes and subsequent anchoring of Pd NPs onto its surface through the confinement and coordination interactions. The as-prepared catalyst is then applied as emulsifier to stabilize the water-in-oil (W/O) Pickering emulsion and investigated as an interfacial catalyst for the hydrogenation of nitroarenes. An obviously enhanced rate toward the nitrobenzene hydrogenation is observed for the 0.8 mol% Pd/PAP-functionalized mesoporous silica-20 catalyst in the emulsion system (both conversion and selectivity are >99% within 30 min) in comparison to a single aqueous solution. Moreover, the emulsion catalytic system can be easily recycled six times without the separation of the catalyst from the water phase during the recycling process. This finding demonstrates that the incorporation of phenylaminopropyl trimethoxysilane amphiphilic groups during the hydrolysis of tetramethyl orthosilicate not only endows MS with interfacial activity but also improves the catalytic activity and stability.
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Affiliation(s)
- Fengwei Zhang
- Institute of Crystalline Materials and School of Chemistry and Chemical
Engineering, Shanxi University, Taiyuan 030006, P. R. China
| | - Juan Li
- Institute of Crystalline Materials and School of Chemistry and Chemical
Engineering, Shanxi University, Taiyuan 030006, P. R. China
| | - Xincheng Li
- Institute of Crystalline Materials and School of Chemistry and Chemical
Engineering, Shanxi University, Taiyuan 030006, P. R. China
| | - Mengqi Yang
- Institute of Crystalline Materials and School of Chemistry and Chemical
Engineering, Shanxi University, Taiyuan 030006, P. R. China
| | - Hengquan Yang
- Institute of Crystalline Materials and School of Chemistry and Chemical
Engineering, Shanxi University, Taiyuan 030006, P. R. China
| | - Xian-Ming Zhang
- Institute of Crystalline Materials and School of Chemistry and Chemical
Engineering, Shanxi University, Taiyuan 030006, P. R. China
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41
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Peng L, Feng A, Liu S, Huo M, Fang T, Wang K, Wei Y, Wang X, Yuan J. Electrochemical Stimulated Pickering Emulsion for Recycling of Enzyme in Biocatalysis. ACS APPLIED MATERIALS & INTERFACES 2016; 8:29203-29207. [PMID: 27740743 DOI: 10.1021/acsami.6b09920] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Potential-stimulated Pickering emulsions, using electrochemical responsive microgels as particle stabilizers, are prepared and used for biocatalysis. The microgels are constructed from cyclodextrin functionalized 8-arm poly(ethylene glycol) (8A PEG-CD) and ferrocene modified counterparts (8A PEG-Fc) via CD/Fc host-guest chemistry. Taking advantage of the redox reaction of Fc, the formation and deformation of the microgels and corresponding Pickering emulsions can be reversibly stimulated by external potential, and have been used for the hydrolysis of triacetin and kinetic resolution reaction of (R,S)-1-phenylethanol catalyzed by lipases. Potential stimulated destabilization of the emulsion realizes an effective separation of the products and enzyme recycling.
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Affiliation(s)
| | | | | | | | | | | | | | - Xiaosong Wang
- Department of Chemistry, Waterloo Institute of Nanotechnology (WIN), University of Waterloo , Waterloo, Canada N2L 3G1
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42
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Zhou D, Zhang Z, Tang J, Zhao J, Liao L. Effect of emulsification processes on the stability of Pickering emulsions stabilized by organomontmorillonites. J DISPER SCI TECHNOL 2016. [DOI: 10.1080/01932691.2016.1218343] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Daojin Zhou
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, China
| | - Zepeng Zhang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, China
| | - Jialun Tang
- Beijing Key Laboratory of Nanophotonics and Ultrafine Optoeletronic Systems, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing, China
| | - Jiali Zhao
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, China
| | - Libing Liao
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, China
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43
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Jin Z, Fan H. The modulation of melanin-like materials: methods, characterization and applications. POLYM INT 2016. [DOI: 10.1002/pi.5187] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Zhaoxia Jin
- Department of Chemistry; Renmin University of China; Beijing 100872 People's Republic of China
| | - Hailong Fan
- Department of Chemistry; Renmin University of China; Beijing 100872 People's Republic of China
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44
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Liu L, Jiang L, Xie X, Yang S. Amphiphilic Carbonaceous Microsphere-Stabilized Oil-in-Water Pickering Emulsions and Their Applications in Enzyme Catalysis. Chempluschem 2016; 81:629-636. [DOI: 10.1002/cplu.201600127] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Revised: 05/27/2016] [Indexed: 12/11/2022]
Affiliation(s)
- Li Liu
- College of Resources and Environmental Sciences; China Agricultural University; Beijing 100193 P. R. China
| | - Linlin Jiang
- College of Resources and Environmental Sciences; China Agricultural University; Beijing 100193 P. R. China
| | - Xiaomin Xie
- College of Resources and Environmental Sciences; China Agricultural University; Beijing 100193 P. R. China
| | - Sen Yang
- College of Resources and Environmental Sciences; China Agricultural University; Beijing 100193 P. R. China
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45
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He F, Wang W, He XH, Yang XL, Li M, Xie R, Ju XJ, Liu Z, Chu LY. Controllable Multicompartmental Capsules with Distinct Cores and Shells for Synergistic Release. ACS APPLIED MATERIALS & INTERFACES 2016; 8:8743-8754. [PMID: 26977710 DOI: 10.1021/acsami.6b01278] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A facile and flexible approach is developed for controllable fabrication of novel multiple-compartmental calcium alginate capsules from all-aqueous droplet templates with combined coextrusion minifluidic devices for isolated coencapsulation and synergistic release of diverse incompatible components. The multicompartmental capsules exhibit distinct compartments, each of which is covered by a distinct part of a heterogeneous shell. The volume and number of multiple compartments can be well-controlled by adjusting flow rates and device numbers for isolated and optimized encapsulation of different components, while the composition of different part of the heterogeneous shell can be individually tailored by changing the composition of droplet template for flexibly tuning the release behavior of each component. Two combined devices are first used to fabricate dual-compartmental capsules and then scaled up to fabricate more complex triple-compartmental capsules for coencapsulation. The synergistic release properties are demonstrated by using dual-compartmental capsules, which contain one-half shell with a constant release rate and the other half shell with a temperature-dependent release rate. Such a heterogeneous shell provides more flexibilities for synergistic release with controllable release sequence and release rates to achieve advanced and optimized synergistic efficacy. The multicompartmental capsules show high potential for applications such as drug codelivery, confined reactions, enzyme immobilizations, and cell cultures.
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Affiliation(s)
- Fan He
- School of Chemical Engineering, Sichuan University , No. 24, Southern 1 Section, Yihuan Road, Chengdu, Sichuan 610065, People's Republic of China
| | - Wei Wang
- School of Chemical Engineering, Sichuan University , No. 24, Southern 1 Section, Yihuan Road, Chengdu, Sichuan 610065, People's Republic of China
| | - Xiao-Heng He
- School of Chemical Engineering, Sichuan University , No. 24, Southern 1 Section, Yihuan Road, Chengdu, Sichuan 610065, People's Republic of China
| | - Xiu-Lan Yang
- School of Chemical Engineering, Sichuan University , No. 24, Southern 1 Section, Yihuan Road, Chengdu, Sichuan 610065, People's Republic of China
| | - Ming Li
- School of Chemical Engineering, Sichuan University , No. 24, Southern 1 Section, Yihuan Road, Chengdu, Sichuan 610065, People's Republic of China
| | - Rui Xie
- School of Chemical Engineering, Sichuan University , No. 24, Southern 1 Section, Yihuan Road, Chengdu, Sichuan 610065, People's Republic of China
| | - Xiao-Jie Ju
- School of Chemical Engineering, Sichuan University , No. 24, Southern 1 Section, Yihuan Road, Chengdu, Sichuan 610065, People's Republic of China
| | - Zhuang Liu
- School of Chemical Engineering, Sichuan University , No. 24, Southern 1 Section, Yihuan Road, Chengdu, Sichuan 610065, People's Republic of China
| | - Liang-Yin Chu
- School of Chemical Engineering, Sichuan University , No. 24, Southern 1 Section, Yihuan Road, Chengdu, Sichuan 610065, People's Republic of China
- State Key Laboratory of Polymer Materials Engineering, Sichuan University , Chengdu, Sichuan 610065, People's Republic of China
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM) , Nanjing, Jiangsu 211816, People's Republic of China
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46
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Shi C, Zhang L, Xie L, Lu X, Liu Q, Mantilla CA, van den Berg FGA, Zeng H. Interaction Mechanism of Oil-in-Water Emulsions with Asphaltenes Determined Using Droplet Probe AFM. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:2302-2310. [PMID: 26901396 DOI: 10.1021/acs.langmuir.5b04392] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Emulsions with interface-active components at the oil/water interface have long been of fundamental and practical interest in many fields. In this work, the interaction forces between two oil droplets in water in the absence/presence of asphaltenes were directly measured using droplet probe atomic force microscopy (AFM) and analyzed using a theoretical model based on Reynolds lubrication theory and the augmented Young-Laplace equation by including the effects of disjoining pressure. It was revealed that the interaction forces measured between two pristine oil droplets (i.e., toluene) could be well described by the classical Derjaguin-Landau-Verwey-Overbeek (DLVO) theory, while an additional steric interaction should be included in the presence of asphaltenes in the oil. The surface interaction and the stability of oil droplets in aqueous solution were demonstrated to be significantly influenced by the asphaltenes concentration in oil, salt concentration, pH, and presence of divalent ions (Ca(2+)) in water. Adsorbed asphaltenes at the oil/water interface led to more negative surface potential of the oil/water interface and also induced steric repulsion between oil droplets, inhibiting the drop coalescence and stabilizing the oil-in-water emulsion. Lower pH of aqueous solution could lead to less negative surface potential and weaken the repulsion between oil droplets. Addition of divalent ions (Ca(2+)) was found to disrupt the protecting effects of adsorbed asphaltenes at oil/water interface and induce coalescence of oil droplets. Our results provide a useful methodology for quantifying the interaction forces and investigating the properties of asphaltenes at the oil/water interfaces and provide insights into the stabilization mechanism of oil-in-water emulsions due to asphaltenes in oil production and water treatment.
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Affiliation(s)
- Chen Shi
- Department of Chemical and Materials Engineering, University of Alberta , Edmonton, AB T6G 2 V4, Canada
| | - Ling Zhang
- Department of Chemical and Materials Engineering, University of Alberta , Edmonton, AB T6G 2 V4, Canada
| | - Lei Xie
- Department of Chemical and Materials Engineering, University of Alberta , Edmonton, AB T6G 2 V4, Canada
| | - Xi Lu
- Department of Chemical and Materials Engineering, University of Alberta , Edmonton, AB T6G 2 V4, Canada
| | - Qingxia Liu
- Department of Chemical and Materials Engineering, University of Alberta , Edmonton, AB T6G 2 V4, Canada
| | - Cesar A Mantilla
- Shell International Exploration and Production Inc., Houston, Texas 77079, United States
| | - Frans G A van den Berg
- Shell Global Solutions International B.V., Grasweg 31, Amsterdam NL 1031 HW, Netherlands
| | - Hongbo Zeng
- Department of Chemical and Materials Engineering, University of Alberta , Edmonton, AB T6G 2 V4, Canada
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