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Zhu X, Li K, Li J, Peng L. Physicochemical properties and antibacterial property of pickering emulsion stabilized by smart Janus nanospheres. Food Chem 2024; 451:139413. [PMID: 38663237 DOI: 10.1016/j.foodchem.2024.139413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 04/12/2024] [Accepted: 04/16/2024] [Indexed: 05/26/2024]
Abstract
In this study, responsive Janus nanospheres were prepared by grafting LMA and DMAEMA monomers on both sides of SiO2 nanospheres using the Pickering emulsion stencil method and RAFT polymerization. The successful synthesis was verified through infrared spectroscopy (FTIR) and thermogravimetric analysis (TGA), scanning electron microscopy (SEM) characterizations. Subsequently, Pickering emulsion was formulated using Janus nanospheres as emulsifiers. The particle size of the emulsion droplets was systematically investigated by manipulating factors such as pH, nanosphere dosage, water to oil ratio, and oil phase polarity. Notably, the Pickering emulsion exhibited responsive properties to pH, temperature, and CO2. Furthermore, Janus nanospheres exhibited excellent emulsification property for real oil phases, including canola oil, kerosene, gasoline, and diesel oil. Building upon this, a smart antibacterial Pickering emulsion was developed using Janus nanospheres, and its inhibition rate against E. coli could reach 100% within 4 h, which would be beneficial for its application in the food field.
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Affiliation(s)
- Xiaoping Zhu
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, PR China
| | - Keran Li
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, PR China; State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610500, PR China.
| | - Jing Li
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, PR China
| | - Lifei Peng
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, PR China
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Lei L, Cheng R, Zhou Y, Yang T, Liang B, Wang S, Zhang X, Lin G, Zhou X. Estimating the velocity of chemically-driven Janus colloids considering the anisotropic concentration field. Front Chem 2022; 10:973961. [PMID: 36034655 PMCID: PMC9411653 DOI: 10.3389/fchem.2022.973961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 07/13/2022] [Indexed: 11/30/2022] Open
Abstract
The application of the active colloids is strongly related to their self-propulsion velocity, which is controlled by the generated anisotropic concentration field. We investigated the effect of this anisotropy on velocity induced by numerical treatments and size of Janus colloids. The far-field approximation is effective in estimating the velocity, even though it neglects the shape effect on the anisotropy of the concentration field. If the surface mobility contrast between the active and the inert part is moderate, the spherical approximation is feasible for sphere-like Janus colloids. Legendre expansion of the concentration field causes artificial anisotropy. Raising the order of the expansion can suppress this effect, but also distorts the concentration field at the top of active part. Thus, the order of the expansion should be chosen carefully depending on the goal of the study. Based on the verified Legendre expansion method and ionic-diffusiophoresis model, we show that due to the size-effect on both the concentration field and the surface mobility, increasing size of colloids can lower the self-propulsion velocity. Our finding is consistent with previous experimental observations without fitting parameter, shedding new light on the self-propulsion mechanism of chemically-driven active colloids. We further show a velocity reversal at high overall ζ potential induced by increasing size, providing a new way for controlling the dynamics of acitve colloids.
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Affiliation(s)
- Lijie Lei
- College of Aviation Engineering, Civil Aviation Flight University of China, Guanghan, China
| | - Rong Cheng
- School of Mechanical and Electrical Engineering, Guangxi Science and Technology Normal University, Laibin, China
| | - Yuxiu Zhou
- School of Mechanical and Electrical Engineering, Guangxi Science and Technology Normal University, Laibin, China
| | - Tiezhu Yang
- School of Mechanical and Electrical Engineering, Guangxi Science and Technology Normal University, Laibin, China
| | - Beirong Liang
- School of Mechanical and Electrical Engineering, Guangxi Science and Technology Normal University, Laibin, China
| | - Shuo Wang
- Julong College, Shenzhen Technology University, Shenzhen, China
| | - Xinyuan Zhang
- Institute for Advanced Study, Shenzhen University, Shenzhen, China
| | - Guanhua Lin
- Institute for Advanced Study, Shenzhen University, Shenzhen, China
| | - Xuemao Zhou
- School of Mechanical and Electrical Engineering, Guangxi Science and Technology Normal University, Laibin, China
- *Correspondence: Xuemao Zhou,
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Liu Z, McClements DJ, Shi A, Zhi L, Tian Y, Jiao B, Liu H, Wang Q. Janus particles: A review of their applications in food and medicine. Crit Rev Food Sci Nutr 2022; 63:10093-10104. [PMID: 35475710 DOI: 10.1080/10408398.2022.2067831] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
In contrast to conventional particles that have isotropic surfaces, Janus ("two-faced") particles have anisotropic surfaces, which leads to novel physicochemical properties and functional attributes. Janus particles with differing compositions, structures, and functional attributes have been prepared using a variety of fabrication methods. Depending on their composition, Janus particles have been classified as inorganic, polymeric, or polymeric/inorganic types. Recently, there has been growing interest in preparing Janus particles from biological macromolecules to meet the demand for a more sustainable and environmentally friendly food and pharmaceutical supply. At interfaces, Janus particles exhibit the characteristics of both surfactants and Pickering stabilizers, and so their behavior can be described using adsorption theories developed to describe these surface-active substances. Research has highlighted several potential applications of Janus particles in food and medicine, including emulsion formation and stabilization, toxin detection, antimicrobial activity, drug delivery, and medical imaging. Nevertheless, further research is needed to design and fabricate Janus particles that are suitable as functional ingredients in the food and biomedicine industries.
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Affiliation(s)
- Zhe Liu
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Beijing, China
| | | | - Aimin Shi
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Lanyi Zhi
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Yanjie Tian
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Beijing, China
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, China
| | - Bo Jiao
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Hongzhi Liu
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Qiang Wang
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Key Laboratory of Agro-Products Processing, Ministry of Agriculture and Rural Affairs, Beijing, China
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Wu B, Sun Z, Wu J, Ruan J, Zhao P, Liu K, Zhao C, Sheng J, Liang T, Chen D. Nanoparticle‐Stabilized Oxygen Microcapsules Prepared by Interfacial Polymerization for Enhanced Oxygen Delivery. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202100752] [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)
- Baiheng Wu
- Department of Medical Oncology The First Affiliated Hospital School of Medicine Zhejiang University Hangzhou 310027 China
- College of Energy Engineering and State Key Laboratory of Fluid Power and Mechatronic Systems Zhejiang University Hangzhou 310027 China
| | - Zhu Sun
- Department of Medical Oncology The First Affiliated Hospital School of Medicine Zhejiang University Hangzhou 310027 China
- College of Energy Engineering and State Key Laboratory of Fluid Power and Mechatronic Systems Zhejiang University Hangzhou 310027 China
| | - Jiangchao Wu
- The First Affiliated Hospital of Zhejiang University School of Medicine Zhejiang Provincial Key Laboratory of Pancreatic Disease Hangzhou 310027 China
| | - Jian Ruan
- Department of Medical Oncology The First Affiliated Hospital School of Medicine Zhejiang University Hangzhou 310027 China
| | - Peng Zhao
- Department of Medical Oncology The First Affiliated Hospital School of Medicine Zhejiang University Hangzhou 310027 China
| | - Kai Liu
- Department of Chemistry Tsinghua University Beijing 100084 China
| | - Chun‐Xia Zhao
- Australian Institute for Bioengineering and Nanotechnology The University of Queensland St Lucia QLD 4072 Australia
| | - Jianpeng Sheng
- The First Affiliated Hospital of Zhejiang University School of Medicine Zhejiang Provincial Key Laboratory of Pancreatic Disease Hangzhou 310027 China
| | - Tingbo Liang
- The First Affiliated Hospital of Zhejiang University School of Medicine Zhejiang Provincial Key Laboratory of Pancreatic Disease Hangzhou 310027 China
| | - Dong Chen
- Department of Medical Oncology The First Affiliated Hospital School of Medicine Zhejiang University Hangzhou 310027 China
- College of Energy Engineering and State Key Laboratory of Fluid Power and Mechatronic Systems Zhejiang University Hangzhou 310027 China
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Wu B, Sun Z, Wu J, Ruan J, Zhao P, Liu K, Zhao C, Sheng J, Liang T, Chen D. Nanoparticle‐Stabilized Oxygen Microcapsules Prepared by Interfacial Polymerization for Enhanced Oxygen Delivery. Angew Chem Int Ed Engl 2021; 60:9284-9289. [PMID: 33586298 DOI: 10.1002/anie.202100752] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Revised: 02/06/2021] [Indexed: 01/06/2023]
Affiliation(s)
- Baiheng Wu
- Department of Medical Oncology The First Affiliated Hospital School of Medicine Zhejiang University Hangzhou 310027 China
- College of Energy Engineering and State Key Laboratory of Fluid Power and Mechatronic Systems Zhejiang University Hangzhou 310027 China
| | - Zhu Sun
- Department of Medical Oncology The First Affiliated Hospital School of Medicine Zhejiang University Hangzhou 310027 China
- College of Energy Engineering and State Key Laboratory of Fluid Power and Mechatronic Systems Zhejiang University Hangzhou 310027 China
| | - Jiangchao Wu
- The First Affiliated Hospital of Zhejiang University School of Medicine Zhejiang Provincial Key Laboratory of Pancreatic Disease Hangzhou 310027 China
| | - Jian Ruan
- Department of Medical Oncology The First Affiliated Hospital School of Medicine Zhejiang University Hangzhou 310027 China
| | - Peng Zhao
- Department of Medical Oncology The First Affiliated Hospital School of Medicine Zhejiang University Hangzhou 310027 China
| | - Kai Liu
- Department of Chemistry Tsinghua University Beijing 100084 China
| | - Chun‐Xia Zhao
- Australian Institute for Bioengineering and Nanotechnology The University of Queensland St Lucia QLD 4072 Australia
| | - Jianpeng Sheng
- The First Affiliated Hospital of Zhejiang University School of Medicine Zhejiang Provincial Key Laboratory of Pancreatic Disease Hangzhou 310027 China
| | - Tingbo Liang
- The First Affiliated Hospital of Zhejiang University School of Medicine Zhejiang Provincial Key Laboratory of Pancreatic Disease Hangzhou 310027 China
| | - Dong Chen
- Department of Medical Oncology The First Affiliated Hospital School of Medicine Zhejiang University Hangzhou 310027 China
- College of Energy Engineering and State Key Laboratory of Fluid Power and Mechatronic Systems Zhejiang University Hangzhou 310027 China
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